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V4L/DVB (12923): SAA7164: Add support for the NXP SAA7164 silicon

Browse Source 
This patch adds support for all of the known shipping Hauppauge HVR-2200
and HVR-2250 boards. Digital TV ATSC/QAM and DVB-T is enabled at this
time. Both tuners are supported.

Volatiles and typedefs need rework, the rest is coding style compliant.

Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Steven Toth 2009-05-09 21:17:28 -03:00 committed by Mauro Carvalho Chehab
parent 9afef39430
commit 443c1228d5
17 changed files with 5321 additions and 0 deletions
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8
Documentation/video4linux/CARDLIST.saa7164 Normal file
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@ -0,0 +1,8 @@
0 -> Unknown
1 -> Generic Rev2
2 -> Generic Rev3
3 -> Hauppauge WinTV-HVR2250 [0070:8880,0070:8810]
4 -> Hauppauge WinTV-HVR2200 [0070:8980]
5 -> Hauppauge WinTV-HVR2200 [0070:8900]
6 -> Hauppauge WinTV-HVR2200 [0070:8901]
7 -> Hauppauge WinTV-HVR2250 [0070:88A1,0070:8891]

2
drivers/media/video/Kconfig
View File

@ -690,6 +690,8 @@ source "drivers/media/video/ivtv/Kconfig"
source "drivers/media/video/cx18/Kconfig"
source "drivers/media/video/saa7164/Kconfig"
config VIDEO_M32R_AR
tristate "AR devices"
depends on M32R && VIDEO_V4L1

1
drivers/media/video/Makefile
View File

@ -157,6 +157,7 @@ obj-$(CONFIG_VIDEO_SH_MOBILE_CEU) += sh_mobile_ceu_camera.o
obj-$(CONFIG_VIDEO_AU0828) += au0828/
obj-$(CONFIG_USB_VIDEO_CLASS) += uvc/
obj-$(CONFIG_VIDEO_SAA7164) += saa7164/
obj-$(CONFIG_VIDEO_IR_I2C) += ir-kbd-i2c.o

19
drivers/media/video/saa7164/Kconfig Normal file
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@ -0,0 +1,19 @@
config VIDEO_SAA7164
tristate "NXP SAA7164 support"
depends on DVB_CORE && PCI && I2C
depends on HOTPLUG # due to FW_LOADER
select I2C_ALGOBIT
select FW_LOADER
select VIDEO_TUNER
select VIDEO_TVEEPROM
select VIDEOBUF_DVB
select DVB_TDA10048 if !DVB_FE_CUSTOMISE
select DVB_S5H1411 if !DVB_FE_CUSTOMISE
select MEDIA_TUNER_TDA18271 if !DVB_FE_CUSTOMIZE
---help---
This is a video4linux driver for NXP SAA7164 based
TV cards.
To compile this driver as a module, choose M here: the
module will be called saa7164

12
drivers/media/video/saa7164/Makefile Normal file
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@ -0,0 +1,12 @@
saa7164-objs := saa7164-cards.o saa7164-core.o saa7164-i2c.o saa7164-dvb.o \
saa7164-fw.o saa7164-bus.o saa7164-cmd.o saa7164-api.o \
saa7164-buffer.o
obj-$(CONFIG_VIDEO_SAA7164) += saa7164.o
EXTRA_CFLAGS += -Idrivers/media/video
EXTRA_CFLAGS += -Idrivers/media/common/tuners
EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core
EXTRA_CFLAGS += -Idrivers/media/dvb/frontends
EXTRA_CFLAGS += $(extra-cflags-y) $(extra-cflags-m)

619
drivers/media/video/saa7164/saa7164-api.c Normal file
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@ -0,0 +1,619 @@
/*
* Driver for the NXP SAA7164 PCIe bridge
*
* Copyright (c) 2009 Steven Toth <stoth@kernellabs.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/wait.h>
#include "saa7164.h"
int saa7164_api_transition_port(struct saa7164_tsport *port, u8 mode)
{
int ret;
ret = saa7164_cmd_send(port->dev, port->hwcfg.unitid, SET_CUR,
SAA_STATE_CONTROL, sizeof(mode), &mode);
if (ret != SAA_OK)
printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
return ret;
}
int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version)
{
int ret;
ret = saa7164_cmd_send(dev, 0, GET_CUR,
GET_FW_VERSION_CONTROL, sizeof(u32), version);
if (ret != SAA_OK)
printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
return ret;
}
int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen)
{
u8 reg[] = { 0x0f, 0x00 };
if (buflen < 128)
return -ENOMEM;
/* Assumption: Hauppauge eeprom is at 0xa0 on on bus 0 */
/* TODO: Pull the details from the boards struct */
return saa7164_api_i2c_read(&dev->i2c_bus[0], 0xa0 >> 1, sizeof(reg),
&reg[0], 128, buf);
}
/* Exercise the i2c interface, saa7164_cmd()/bus() layers:
* 1. Read the identity byte from each of the demodulators.
* 2. Read the entire register set from the TDA18271.
* TODO: This function has no purpose other than to exercise i2c.
*/
int saa7164_api_test(struct saa7164_dev *dev)
{
/* TDA10048 identities */
u8 reg[] = { 0x00 };
u8 data[256];
dprintk(DBGLVL_API, "%s()\n", __func__);
/* Read all 39 bytes from the TDA18271 tuners */
saa7164_api_i2c_read(&dev->i2c_bus[1], 0xc0 >> 1, 0,
&reg[0], 39, &data[0]);
saa7164_api_i2c_read(&dev->i2c_bus[2], 0xc0 >> 1, 0,
&reg[0], 39, &data[0]);
return 0;
}
int saa7164_api_configure_port_mpeg2ts(struct saa7164_dev *dev,
struct saa7164_tsport *port,
tmComResTSFormatDescrHeader_t *tsfmt)
{
dprintk(DBGLVL_API, " bFormatIndex = 0x%x\n", tsfmt->bFormatIndex);
dprintk(DBGLVL_API, " bDataOffset = 0x%x\n", tsfmt->bDataOffset);
dprintk(DBGLVL_API, " bPacketLength= 0x%x\n", tsfmt->bPacketLength);
dprintk(DBGLVL_API, " bStrideLength= 0x%x\n", tsfmt->bStrideLength);
dprintk(DBGLVL_API, " bguid = (....)\n");
/* Cache the hardware configuration in the port */
port->bufcounter = port->hwcfg.BARLocation;
port->pitch = port->hwcfg.BARLocation + (2 * sizeof(u32));
port->bufsize = port->hwcfg.BARLocation + (3 * sizeof(u32));
port->bufoffset = port->hwcfg.BARLocation + (4 * sizeof(u32));
port->bufptr32l = port->hwcfg.BARLocation +
(4 * sizeof(u32)) +
(sizeof(u32) * port->hwcfg.buffercount) + sizeof(u32);
port->bufptr32h = port->hwcfg.BARLocation +
(4 * sizeof(u32)) +
(sizeof(u32) * port->hwcfg.buffercount);
port->bufptr64 = port->hwcfg.BARLocation +
(4 * sizeof(u32)) +
(sizeof(u32) * port->hwcfg.buffercount);
dprintk(DBGLVL_API, " = port->hwcfg.BARLocation = 0x%x\n",
port->hwcfg.BARLocation);
dprintk(DBGLVL_API, " = VS_FORMAT_MPEGTS (becomes dev->ts[%d])\n",
port->nr);
return 0;
}
int saa7164_api_dump_subdevs(struct saa7164_dev *dev, u8 *buf, int len)
{
struct saa7164_tsport *port = 0;
u32 idx, next_offset;
int i;
tmComResDescrHeader_t *hdr, *t;
tmComResExtDevDescrHeader_t *exthdr;
tmComResPathDescrHeader_t *pathhdr;
tmComResAntTermDescrHeader_t *anttermhdr;
tmComResTunerDescrHeader_t *tunerunithdr;
tmComResDMATermDescrHeader_t *vcoutputtermhdr;
tmComResTSFormatDescrHeader_t *tsfmt;
u32 currpath = 0;
dprintk(DBGLVL_API,
"%s(?,?,%d) sizeof(tmComResDescrHeader_t) = %lu bytes\n",
__func__, len, sizeof(tmComResDescrHeader_t));
for (idx = 0; idx < (len - sizeof(tmComResDescrHeader_t)); ) {
hdr = (tmComResDescrHeader_t *)(buf + idx);
if (hdr->type != CS_INTERFACE)
return SAA_ERR_NOT_SUPPORTED;
dprintk(DBGLVL_API, "@ 0x%x = \n", idx);
switch (hdr->subtype) {
case GENERAL_REQUEST:
dprintk(DBGLVL_API, " GENERAL_REQUEST\n");
break;
case VC_TUNER_PATH:
dprintk(DBGLVL_API, " VC_TUNER_PATH\n");
pathhdr = (tmComResPathDescrHeader_t *)(buf + idx);
dprintk(DBGLVL_API, " pathid = 0x%x\n",
pathhdr->pathid);
currpath = pathhdr->pathid;
break;
case VC_INPUT_TERMINAL:
dprintk(DBGLVL_API, " VC_INPUT_TERMINAL\n");
anttermhdr =
(tmComResAntTermDescrHeader_t *)(buf + idx);
dprintk(DBGLVL_API, " terminalid = 0x%x\n",
anttermhdr->terminalid);
dprintk(DBGLVL_API, " terminaltype = 0x%x\n",
anttermhdr->terminaltype);
switch (anttermhdr->terminaltype) {
case ITT_ANTENNA:
dprintk(DBGLVL_API, " = ITT_ANTENNA\n");
break;
case LINE_CONNECTOR:
dprintk(DBGLVL_API, " = LINE_CONNECTOR\n");
break;
case SPDIF_CONNECTOR:
dprintk(DBGLVL_API, " = SPDIF_CONNECTOR\n");
break;
case COMPOSITE_CONNECTOR:
dprintk(DBGLVL_API,
" = COMPOSITE_CONNECTOR\n");
break;
case SVIDEO_CONNECTOR:
dprintk(DBGLVL_API, " = SVIDEO_CONNECTOR\n");
break;
case COMPONENT_CONNECTOR:
dprintk(DBGLVL_API,
" = COMPONENT_CONNECTOR\n");
break;
case STANDARD_DMA:
dprintk(DBGLVL_API, " = STANDARD_DMA\n");
break;
default:
dprintk(DBGLVL_API, " = undefined (0x%x)\n",
anttermhdr->terminaltype);
}
dprintk(DBGLVL_API, " assocterminal= 0x%x\n",
anttermhdr->assocterminal);
dprintk(DBGLVL_API, " iterminal = 0x%x\n",
anttermhdr->iterminal);
dprintk(DBGLVL_API, " controlsize = 0x%x\n",
anttermhdr->controlsize);
break;
case VC_OUTPUT_TERMINAL:
dprintk(DBGLVL_API, " VC_OUTPUT_TERMINAL\n");
vcoutputtermhdr =
(tmComResDMATermDescrHeader_t *)(buf + idx);
dprintk(DBGLVL_API, " unitid = 0x%x\n",
vcoutputtermhdr->unitid);
dprintk(DBGLVL_API, " terminaltype = 0x%x\n",
vcoutputtermhdr->terminaltype);
switch (vcoutputtermhdr->terminaltype) {
case ITT_ANTENNA:
dprintk(DBGLVL_API, " = ITT_ANTENNA\n");
break;
case LINE_CONNECTOR:
dprintk(DBGLVL_API, " = LINE_CONNECTOR\n");
break;
case SPDIF_CONNECTOR:
dprintk(DBGLVL_API, " = SPDIF_CONNECTOR\n");
break;
case COMPOSITE_CONNECTOR:
dprintk(DBGLVL_API,
" = COMPOSITE_CONNECTOR\n");
break;
case SVIDEO_CONNECTOR:
dprintk(DBGLVL_API, " = SVIDEO_CONNECTOR\n");
break;
case COMPONENT_CONNECTOR:
dprintk(DBGLVL_API,
" = COMPONENT_CONNECTOR\n");
break;
case STANDARD_DMA:
dprintk(DBGLVL_API, " = STANDARD_DMA\n");
break;
default:
dprintk(DBGLVL_API, " = undefined (0x%x)\n",
vcoutputtermhdr->terminaltype);
}
dprintk(DBGLVL_API, " assocterminal= 0x%x\n",
vcoutputtermhdr->assocterminal);
dprintk(DBGLVL_API, " sourceid = 0x%x\n",
vcoutputtermhdr->sourceid);
dprintk(DBGLVL_API, " iterminal = 0x%x\n",
vcoutputtermhdr->iterminal);
dprintk(DBGLVL_API, " BARLocation = 0x%x\n",
vcoutputtermhdr->BARLocation);
dprintk(DBGLVL_API, " flags = 0x%x\n",
vcoutputtermhdr->flags);
dprintk(DBGLVL_API, " interruptid = 0x%x\n",
vcoutputtermhdr->interruptid);
dprintk(DBGLVL_API, " buffercount = 0x%x\n",
vcoutputtermhdr->buffercount);
dprintk(DBGLVL_API, " metadatasize = 0x%x\n",
vcoutputtermhdr->metadatasize);
dprintk(DBGLVL_API, " controlsize = 0x%x\n",
vcoutputtermhdr->controlsize);
dprintk(DBGLVL_API, " numformats = 0x%x\n",
vcoutputtermhdr->numformats);
t = (tmComResDescrHeader_t *)
((tmComResDMATermDescrHeader_t *)(buf + idx));
next_offset = idx + (vcoutputtermhdr->len);
for (i = 0; i < vcoutputtermhdr->numformats; i++) {
t = (tmComResDescrHeader_t *)
(buf + next_offset);
switch (t->subtype) {
case VS_FORMAT_MPEG2TS:
tsfmt =
(tmComResTSFormatDescrHeader_t *)t;
if (currpath == 1)
port = &dev->ts1;
else
port = &dev->ts2;
memcpy(&port->hwcfg, vcoutputtermhdr,
sizeof(*vcoutputtermhdr));
saa7164_api_configure_port_mpeg2ts(dev,
port, tsfmt);
break;
case VS_FORMAT_MPEG2PS:
dprintk(DBGLVL_API,
" = VS_FORMAT_MPEG2PS\n");
break;
case VS_FORMAT_VBI:
dprintk(DBGLVL_API,
" = VS_FORMAT_VBI\n");
break;
case VS_FORMAT_RDS:
dprintk(DBGLVL_API,
" = VS_FORMAT_RDS\n");
break;
case VS_FORMAT_UNCOMPRESSED:
dprintk(DBGLVL_API,
" = VS_FORMAT_UNCOMPRESSED\n");
break;
case VS_FORMAT_TYPE:
dprintk(DBGLVL_API,
" = VS_FORMAT_TYPE\n");
break;
default:
dprintk(DBGLVL_API,
" = undefined (0x%x)\n",
t->subtype);
}
next_offset += t->len;
}
break;
case TUNER_UNIT:
dprintk(DBGLVL_API, " TUNER_UNIT\n");
tunerunithdr =
(tmComResTunerDescrHeader_t *)(buf + idx);
dprintk(DBGLVL_API, " unitid = 0x%x\n",
tunerunithdr->unitid);
dprintk(DBGLVL_API, " sourceid = 0x%x\n",
tunerunithdr->sourceid);
dprintk(DBGLVL_API, " iunit = 0x%x\n",
tunerunithdr->iunit);
dprintk(DBGLVL_API, " tuningstandards = 0x%x\n",
tunerunithdr->tuningstandards);
dprintk(DBGLVL_API, " controlsize = 0x%x\n",
tunerunithdr->controlsize);
dprintk(DBGLVL_API, " controls = 0x%x\n",
tunerunithdr->controls);
break;
case VC_SELECTOR_UNIT:
dprintk(DBGLVL_API, " VC_SELECTOR_UNIT\n");
break;
case VC_PROCESSING_UNIT:
dprintk(DBGLVL_API, " VC_PROCESSING_UNIT\n");
break;
case FEATURE_UNIT:
dprintk(DBGLVL_API, " FEATURE_UNIT\n");
break;
case ENCODER_UNIT:
dprintk(DBGLVL_API, " ENCODER_UNIT\n");
break;
case EXTENSION_UNIT:
dprintk(DBGLVL_API, " EXTENSION_UNIT\n");
exthdr = (tmComResExtDevDescrHeader_t *)(buf + idx);
dprintk(DBGLVL_API, " unitid = 0x%x\n",
exthdr->unitid);
dprintk(DBGLVL_API, " deviceid = 0x%x\n",
exthdr->deviceid);
dprintk(DBGLVL_API, " devicetype = 0x%x\n",
exthdr->devicetype);
if (exthdr->devicetype & 0x1)
dprintk(DBGLVL_API, " = Decoder Device\n");
if (exthdr->devicetype & 0x2)
dprintk(DBGLVL_API, " = GPIO Source\n");
if (exthdr->devicetype & 0x4)
dprintk(DBGLVL_API, " = Video Decoder\n");
if (exthdr->devicetype & 0x8)
dprintk(DBGLVL_API, " = Audio Decoder\n");
if (exthdr->devicetype & 0x20)
dprintk(DBGLVL_API, " = Crossbar\n");
if (exthdr->devicetype & 0x40)
dprintk(DBGLVL_API, " = Tuner\n");
if (exthdr->devicetype & 0x80)
dprintk(DBGLVL_API, " = IF PLL\n");
if (exthdr->devicetype & 0x100)
dprintk(DBGLVL_API, " = Demodulator\n");
if (exthdr->devicetype & 0x200)
dprintk(DBGLVL_API, " = RDS Decoder\n");
if (exthdr->devicetype & 0x400)
dprintk(DBGLVL_API, " = Encoder\n");
if (exthdr->devicetype & 0x800)
dprintk(DBGLVL_API, " = IR Decoder\n");
if (exthdr->devicetype & 0x1000)
dprintk(DBGLVL_API, " = EEPROM\n");
if (exthdr->devicetype & 0x2000)
dprintk(DBGLVL_API,
" = VBI Decoder\n");
if (exthdr->devicetype & 0x10000)
dprintk(DBGLVL_API,
" = Streaming Device\n");
if (exthdr->devicetype & 0x20000)
dprintk(DBGLVL_API,
" = DRM Device\n");
if (exthdr->devicetype & 0x40000000)
dprintk(DBGLVL_API,
" = Generic Device\n");
if (exthdr->devicetype & 0x80000000)
dprintk(DBGLVL_API,
" = Config Space Device\n");
dprintk(DBGLVL_API, " numgpiopins = 0x%x\n",
exthdr->numgpiopins);
dprintk(DBGLVL_API, " numgpiogroups = 0x%x\n",
exthdr->numgpiogroups);
dprintk(DBGLVL_API, " controlsize = 0x%x\n",
exthdr->controlsize);
break;
case PVC_INFRARED_UNIT:
dprintk(DBGLVL_API, " PVC_INFRARED_UNIT\n");
break;
case DRM_UNIT:
dprintk(DBGLVL_API, " DRM_UNIT\n");
break;
default:
dprintk(DBGLVL_API, "default %d\n", hdr->subtype);
}
dprintk(DBGLVL_API, " 1.%x\n", hdr->len);
dprintk(DBGLVL_API, " 2.%x\n", hdr->type);
dprintk(DBGLVL_API, " 3.%x\n", hdr->subtype);
dprintk(DBGLVL_API, " 4.%x\n", hdr->unitid);
idx += hdr->len;
}
return 0;
}
int saa7164_api_enum_subdevs(struct saa7164_dev *dev)
{
int ret;
u32 buflen = 0;
u8 *buf;
dprintk(DBGLVL_API, "%s()\n", __func__);
/* Get the total descriptor length */
ret = saa7164_cmd_send(dev, 0, GET_LEN,
GET_DESCRIPTORS_CONTROL, sizeof(buflen), &buflen);
if (ret != SAA_OK)
printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
dprintk(DBGLVL_API, "%s() total descriptor size = %d bytes.\n",
__func__, buflen);
/* Allocate enough storage for all of the descs */
buf = kzalloc(buflen, GFP_KERNEL);
if (buf == NULL)
return SAA_ERR_NO_RESOURCES;
/* Retrieve them */
ret = saa7164_cmd_send(dev, 0, GET_CUR,
GET_DESCRIPTORS_CONTROL, buflen, buf);
if (ret != SAA_OK) {
printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret);
goto out;
}
if (debug & DBGLVL_API)
saa7164_dumphex16(dev, buf, (buflen/16)*16);
saa7164_api_dump_subdevs(dev, buf, buflen);
out:
kfree(buf);
return ret;
}
int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg,
u32 datalen, u8 *data)
{
struct saa7164_dev *dev = bus->dev;
u16 len = 0;
int unitid;
u32 regval;
u8 buf[256];
int ret;
dprintk(DBGLVL_API, "%s()\n", __func__);
if (reglen > 4)
return -EIO;
if (reglen == 1)
regval = *(reg);
else
if (reglen == 2)
regval = ((*(reg) << 8) || *(reg+1));
else
if (reglen == 3)
regval = ((*(reg) << 16) | (*(reg+1) << 8) | *(reg+2));
else
if (reglen == 4)
regval = ((*(reg) << 24) | (*(reg+1) << 16) |
(*(reg+2) << 8) | *(reg+3));
/* Prepare the send buffer */
/* Bytes 00-03 source register length
* 04-07 source bytes to read
* 08... register address
*/
memset(buf, 0, sizeof(buf));
memcpy((buf + 2 * sizeof(u32) + 0), reg, reglen);
*((u32 *)(buf + 0 * sizeof(u32))) = reglen;
*((u32 *)(buf + 1 * sizeof(u32))) = datalen;
unitid = saa7164_i2caddr_to_unitid(bus, addr);
if (unitid < 0) {
printk(KERN_ERR
"%s() error, cannot translate regaddr 0x%x to unitid\n",
__func__, addr);
return -EIO;
}
ret = saa7164_cmd_send(bus->dev, unitid, GET_LEN,
EXU_REGISTER_ACCESS_CONTROL, sizeof(len), &len);
if (ret != SAA_OK) {
printk(KERN_ERR "%s() error, ret(1) = 0x%x\n", __func__, ret);
return -EIO;
}
dprintk(DBGLVL_API, "%s() len = %d bytes\n", __func__, len);
if (debug & DBGLVL_I2C)
saa7164_dumphex16(dev, buf, 2 * 16);
ret = saa7164_cmd_send(bus->dev, unitid, GET_CUR,
EXU_REGISTER_ACCESS_CONTROL, len, &buf);
if (ret != SAA_OK)
printk(KERN_ERR "%s() error, ret(2) = 0x%x\n", __func__, ret);
else {
if (debug & DBGLVL_I2C)
saa7164_dumphex16(dev, buf, sizeof(buf));
memcpy(data, (buf + 2 * sizeof(u32) + reglen), datalen);
}
return ret == SAA_OK ? 0 : -EIO;
}
/* For a given 8 bit i2c address device, write the buffer */
int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr, u32 datalen,
u8 *data)
{
struct saa7164_dev *dev = bus->dev;
u16 len = 0;
int unitid;
int reglen;
u8 buf[256];
int ret;
dprintk(DBGLVL_API, "%s()\n", __func__);
if ((datalen == 0) || (datalen > 232))
return -EIO;
memset(buf, 0, sizeof(buf));
unitid = saa7164_i2caddr_to_unitid(bus, addr);
if (unitid < 0) {
printk(KERN_ERR
"%s() error, cannot translate regaddr 0x%x to unitid\n",
__func__, addr);
return -EIO;
}
reglen = saa7164_i2caddr_to_reglen(bus, addr);
if (unitid < 0) {
printk(KERN_ERR
"%s() error, cannot translate regaddr to reglen\n",
__func__);
return -EIO;
}
ret = saa7164_cmd_send(bus->dev, unitid, GET_LEN,
EXU_REGISTER_ACCESS_CONTROL, sizeof(len), &len);
if (ret != SAA_OK) {
printk(KERN_ERR "%s() error, ret(1) = 0x%x\n", __func__, ret);
return -EIO;
}
dprintk(DBGLVL_API, "%s() len = %d bytes\n", __func__, len);
/* Prepare the send buffer */
/* Bytes 00-03 dest register length
* 04-07 dest bytes to write
* 08... register address
*/
*((u32 *)(buf + 0 * sizeof(u32))) = reglen;
*((u32 *)(buf + 1 * sizeof(u32))) = datalen - reglen;
memcpy((buf + 2 * sizeof(u32)), data, datalen);
if (debug & DBGLVL_I2C)
saa7164_dumphex16(dev, buf, sizeof(buf));
ret = saa7164_cmd_send(bus->dev, unitid, SET_CUR,
EXU_REGISTER_ACCESS_CONTROL, len, &buf);
if (ret != SAA_OK)
printk(KERN_ERR "%s() error, ret(2) = 0x%x\n", __func__, ret);
return ret == SAA_OK ? 0 : -EIO;
}
int saa7164_api_modify_gpio(struct saa7164_dev *dev, u8 unitid,
u8 pin, u8 state)
{
int ret;
tmComResGPIO_t t;
dprintk(DBGLVL_API, "%s(0x%x, %d, %d)\n",
__func__, unitid, pin, state);
if ((pin > 7) || (state > 2))
return SAA_ERR_BAD_PARAMETER;
t.pin = pin;
t.state = state;
ret = saa7164_cmd_send(dev, unitid, SET_CUR,
EXU_GPIO_CONTROL, sizeof(t), &t);
if (ret != SAA_OK)
printk(KERN_ERR "%s() error, ret = 0x%x\n",
__func__, ret);
return ret;
}
int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid,
u8 pin)
{
return saa7164_api_modify_gpio(dev, unitid, pin, 1);
}
int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid,
u8 pin)
{
return saa7164_api_modify_gpio(dev, unitid, pin, 0);
}

158
drivers/media/video/saa7164/saa7164-buffer.c Normal file
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@ -0,0 +1,158 @@
/*
* Driver for the NXP SAA7164 PCIe bridge
*
* Copyright (c) 2009 Steven Toth <stoth@kernellabs.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "saa7164.h"
/* The PCI address space for buffer handling looks like this:
+-u32 wide-------------+
| +
+-u64 wide------------------------------------+
+ +
+----------------------+
| CurrentBufferPtr + Pointer to current PCI buffer >-+
+----------------------+ |
| Unused + |
+----------------------+ |
| Pitch + = 188 (bytes) |
+----------------------+ |
| PCI buffer size + = pitch * number of lines (312) |
+----------------------+ |
|0| Buf0 Write Offset + |
+----------------------+ v
|1| Buf1 Write Offset + |
+----------------------+ |
|2| Buf2 Write Offset + |
+----------------------+ |
|3| Buf3 Write Offset + |
+----------------------+ |
... More write offsets |
+---------------------------------------------+ |
+0| set of ptrs to PCI pagetables + |
+---------------------------------------------+ |
+1| set of ptrs to PCI pagetables + <--------+
+---------------------------------------------+
+2| set of ptrs to PCI pagetables +
+---------------------------------------------+
+3| set of ptrs to PCI pagetables + >--+
+---------------------------------------------+ |
... More buffer pointers | +----------------+
+->| pt[0] TS data |
| +----------------+
|
| +----------------+
+->| pt[1] TS data |
| +----------------+
| etc
*/
/* Allocate a new buffer structure and associated PCI space in bytes.
* len must be a multiple of sizeof(u64)
*/
struct saa7164_buffer *saa7164_buffer_alloc(struct saa7164_tsport *port,
u32 len)
{
struct saa7164_buffer *buf = 0;
struct saa7164_dev *dev = port->dev;
int i;
if ((len == 0) || (len >= 65536) || (len % sizeof(u64))) {
log_warn("%s() SAA_ERR_BAD_PARAMETER\n", __func__);
goto ret;
}
buf = kzalloc(sizeof(struct saa7164_buffer), GFP_KERNEL);
if (buf == NULL) {
log_warn("%s() SAA_ERR_NO_RESOURCES\n", __func__);
goto ret;
}
buf->port = port;
buf->flags = SAA7164_BUFFER_FREE;
/* TODO: arg len is being ignored */
buf->pci_size = SAA7164_PT_ENTRIES * 0x1000;
buf->pt_size = (SAA7164_PT_ENTRIES * sizeof(u64)) + 0x1000;
/* Allocate contiguous memory */
buf->cpu = pci_alloc_consistent(port->dev->pci, buf->pci_size,
&buf->dma);
if (!buf->cpu)
goto fail1;
buf->pt_cpu = pci_alloc_consistent(port->dev->pci, buf->pt_size,
&buf->pt_dma);
if (!buf->pt_cpu)
goto fail2;
/* init the buffers to a known pattern, easier during debugging */
memset(buf->cpu, 0xff, buf->pci_size);
memset(buf->pt_cpu, 0xff, buf->pt_size);
dprintk(DBGLVL_BUF, "%s() allocated buffer @ 0x%p\n", __func__, buf);
dprintk(DBGLVL_BUF, " pci_cpu @ 0x%llx dma @ 0x%llx len = 0x%x\n",
(u64)buf->cpu, (u64)buf->dma, buf->pci_size);
dprintk(DBGLVL_BUF, " pt_cpu @ 0x%llx pt_dma @ 0x%llx len = 0x%x\n",
(u64)buf->pt_cpu, (u64)buf->pt_dma, buf->pt_size);
/* Format the Page Table Entries to point into the data buffer */
for (i = 0 ; i < SAA7164_PT_ENTRIES; i++) {
*(buf->pt_cpu + i) = buf->dma + (i * 0x1000); /* TODO */
dprintk(DBGLVL_BUF, " pt[%02d] = 0x%llx -> 0x%llx\n",
i, (u64)buf->pt_cpu, (u64)*(buf->pt_cpu));
}
goto ret;
fail2:
pci_free_consistent(port->dev->pci, buf->pci_size, buf->cpu, buf->dma);
fail1:
kfree(buf);
buf = 0;
ret:
return buf;
}
int saa7164_buffer_dealloc(struct saa7164_tsport *port,
struct saa7164_buffer *buf)
{
struct saa7164_dev *dev = port->dev;
if ((buf == 0) || (port == 0))
return SAA_ERR_BAD_PARAMETER;
dprintk(DBGLVL_BUF, "%s() deallocating buffer @ 0x%p\n", __func__, buf);
if (buf->flags != SAA7164_BUFFER_FREE)
log_warn(" freeing a non-free buffer\n");
pci_free_consistent(port->dev->pci, buf->pci_size, buf->cpu, buf->dma);
pci_free_consistent(port->dev->pci, buf->pt_size, buf->pt_cpu,
buf->pt_dma);
kfree(buf);
return SAA_OK;
}

448
drivers/media/video/saa7164/saa7164-bus.c Normal file
View File

@ -0,0 +1,448 @@
/*
* Driver for the NXP SAA7164 PCIe bridge
*
* Copyright (c) 2009 Steven Toth <stoth@kernellabs.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "saa7164.h"
/* The message bus to/from the firmware is a ring buffer in PCI address
* space. Establish the defaults.
*/
int saa7164_bus_setup(struct saa7164_dev *dev)
{
tmComResBusInfo_t *b = &dev->bus;
mutex_init(&b->lock);
b->Type = TYPE_BUS_PCIe;
b->m_wMaxReqSize = SAA_DEVICE_MAXREQUESTSIZE;
b->m_pdwSetRing = (u8 *)(dev->bmmio +
((u32)dev->busdesc.CommandRing));
b->m_dwSizeSetRing = SAA_DEVICE_BUFFERBLOCKSIZE;
b->m_pdwGetRing = (u8 *)(dev->bmmio +
((u32)dev->busdesc.ResponseRing));
b->m_dwSizeGetRing = SAA_DEVICE_BUFFERBLOCKSIZE;
b->m_pdwSetWritePos = (u32 *)((u8 *)(dev->bmmio +
((u32)dev->intfdesc.BARLocation) + (2 * sizeof(u64))));
b->m_pdwSetReadPos = (u32 *)((u8 *)b->m_pdwSetWritePos +
1 * sizeof(u32));
b->m_pdwGetWritePos = (u32 *)((u8 *)b->m_pdwSetWritePos +
2 * sizeof(u32));
b->m_pdwGetReadPos = (u32 *)((u8 *)b->m_pdwSetWritePos +
3 * sizeof(u32));
return 0;
}
void saa7164_bus_dump(struct saa7164_dev *dev)
{
tmComResBusInfo_t *b = &dev->bus;
dprintk(DBGLVL_BUS, "Dumping the bus structure:\n");
dprintk(DBGLVL_BUS, " .type = %d\n", b->Type);
dprintk(DBGLVL_BUS, " .dev->bmmio = 0x%p\n", dev->bmmio);
dprintk(DBGLVL_BUS, " .m_wMaxReqSize = 0x%x\n", b->m_wMaxReqSize);
dprintk(DBGLVL_BUS, " .m_pdwSetRing = 0x%p\n", b->m_pdwSetRing);
dprintk(DBGLVL_BUS, " .m_dwSizeSetRing = 0x%x\n", b->m_dwSizeSetRing);
dprintk(DBGLVL_BUS, " .m_pdwGetRing = 0x%p\n", b->m_pdwGetRing);
dprintk(DBGLVL_BUS, " .m_dwSizeGetRing = 0x%x\n", b->m_dwSizeGetRing);
dprintk(DBGLVL_BUS, " .m_pdwSetWritePos = 0x%p (0x%08x)\n",
b->m_pdwSetWritePos, *b->m_pdwSetWritePos);
dprintk(DBGLVL_BUS, " .m_pdwSetReadPos = 0x%p (0x%08x)\n",
b->m_pdwSetReadPos, *b->m_pdwSetReadPos);
dprintk(DBGLVL_BUS, " .m_pdwGetWritePos = 0x%p (0x%08x)\n",
b->m_pdwGetWritePos, *b->m_pdwGetWritePos);
dprintk(DBGLVL_BUS, " .m_pdwGetReadPos = 0x%p (0x%08x)\n",
b->m_pdwGetReadPos, *b->m_pdwGetReadPos);
}
void saa7164_bus_dumpmsg(struct saa7164_dev *dev, tmComResInfo_t* m, void *buf)
{
dprintk(DBGLVL_BUS, "Dumping msg structure:\n");
dprintk(DBGLVL_BUS, " .id = %d\n", m->id);
dprintk(DBGLVL_BUS, " .flags = 0x%x\n", m->flags);
dprintk(DBGLVL_BUS, " .size = 0x%x\n", m->size);
dprintk(DBGLVL_BUS, " .command = 0x%x\n", m->command);
dprintk(DBGLVL_BUS, " .controlselector = 0x%x\n", m->controlselector);
dprintk(DBGLVL_BUS, " .seqno = %d\n", m->seqno);
if (buf)
dprintk(DBGLVL_BUS, " .buffer (ignored)\n");
}
/*
* Places a command or a response on the bus. The implementation does not
* know if it is a command or a response it just places the data on the
* bus depending on the bus information given in the tmComResBusInfo_t
* structure. If the command or response does not fit into the bus ring
* buffer it will be refused.
*
* Return Value:
* SAA_OK The function executed successfully.
* < 0 One or more members are not initialized.
*/
int saa7164_bus_set(struct saa7164_dev *dev, tmComResInfo_t* msg, void *buf)
{
tmComResBusInfo_t *bus = &dev->bus;
u32 bytes_to_write, read_distance, timeout, curr_srp, curr_swp;
u32 new_swp, space_rem;
int ret = SAA_ERR_BAD_PARAMETER;
if (!msg) {
printk(KERN_ERR "%s() !msg\n", __func__);
return SAA_ERR_BAD_PARAMETER;
}
dprintk(DBGLVL_BUS, "%s()\n", __func__);
msg->size = cpu_to_le16(msg->size);
msg->command = cpu_to_le16(msg->command);
msg->controlselector = cpu_to_le16(msg->controlselector);
if (msg->size > dev->bus.m_wMaxReqSize) {
printk(KERN_ERR "%s() Exceeded dev->bus.m_wMaxReqSize\n",
__func__);
return SAA_ERR_BAD_PARAMETER;
}
if ((msg->size > 0) && (buf == 0)) {
printk(KERN_ERR "%s() Missing message buffer\n", __func__);
return SAA_ERR_BAD_PARAMETER;
}
/* Lock the bus from any other access */
mutex_lock(&bus->lock);
bytes_to_write = sizeof(*msg) + msg->size;
read_distance = 0;
timeout = SAA_BUS_TIMEOUT;
curr_srp = le32_to_cpu(*bus->m_pdwSetReadPos);
curr_swp = le32_to_cpu(*bus->m_pdwSetWritePos);
/* Deal with ring wrapping issues */
if (curr_srp > curr_swp)
/* The ring has not wrapped yet */
read_distance = curr_srp - curr_swp;
else
/* Deal with the wrapped ring */
read_distance = (curr_srp + bus->m_dwSizeSetRing) - curr_swp;
dprintk(DBGLVL_BUS, "%s() bytes_to_write = %d\n", __func__,
bytes_to_write);
dprintk(DBGLVL_BUS, "%s() read_distance = %d\n", __func__,
read_distance);
dprintk(DBGLVL_BUS, "%s() curr_srp = %x\n", __func__, curr_srp);
dprintk(DBGLVL_BUS, "%s() curr_swp = %x\n", __func__, curr_swp);
/* Process the msg and write the content onto the bus */
while (bytes_to_write >= read_distance) {
if (timeout-- == 0) {
printk(KERN_ERR "%s() bus timeout\n", __func__);
ret = SAA_ERR_NO_RESOURCES;
goto out;
}
/* TODO: Review this delay, efficient? */
/* Wait, allowing the hardware fetch time */
mdelay(1);
/* Check the space usage again */
curr_srp = le32_to_cpu(*bus->m_pdwSetReadPos);
/* Deal with ring wrapping issues */
if (curr_srp > curr_swp)
/* Read didn't wrap around the buffer */
read_distance = curr_srp - curr_swp;
else
/* Deal with the wrapped ring */
read_distance = (curr_srp + bus->m_dwSizeSetRing) -
curr_swp;
}
/* Calculate the new write position */
new_swp = curr_swp + bytes_to_write;
dprintk(DBGLVL_BUS, "%s() new_swp = %x\n", __func__, new_swp);
dprintk(DBGLVL_BUS, "%s() bus->m_dwSizeSetRing = %x\n", __func__,
bus->m_dwSizeSetRing);
/* Mental Note: line 462 tmmhComResBusPCIe.cpp */
/* Check if we're going to wrap again */
if (new_swp > bus->m_dwSizeSetRing) {
/* Ring wraps */
new_swp -= bus->m_dwSizeSetRing;
space_rem = bus->m_dwSizeSetRing - curr_swp;
dprintk(DBGLVL_BUS, "%s() space_rem = %x\n", __func__,
space_rem);
dprintk(DBGLVL_BUS, "%s() sizeof(*msg) = %lu\n", __func__,
sizeof(*msg));
if (space_rem < sizeof(*msg)) {
dprintk(DBGLVL_BUS, "%s() tr4\n", __func__);
/* Split the msg into pieces as the ring wraps */
memcpy(bus->m_pdwSetRing + curr_swp, msg, space_rem);
memcpy(bus->m_pdwSetRing, (u8 *)msg + space_rem,
sizeof(*msg) - space_rem);
memcpy(bus->m_pdwSetRing + sizeof(*msg) - space_rem,
buf, msg->size);
} else if (space_rem == sizeof(*msg)) {
dprintk(DBGLVL_BUS, "%s() tr5\n", __func__);
/* Additional data at the beginning of the ring */
memcpy(bus->m_pdwSetRing + curr_swp, msg, sizeof(*msg));
memcpy(bus->m_pdwSetRing, buf, msg->size);
} else {
/* Additional data wraps around the ring */
memcpy(bus->m_pdwSetRing + curr_swp, msg, sizeof(*msg));
if (msg->size > 0) {
memcpy(bus->m_pdwSetRing + curr_swp +
sizeof(*msg), buf, space_rem -
sizeof(*msg));
memcpy(bus->m_pdwSetRing, (u8 *)buf +
space_rem - sizeof(*msg),
bytes_to_write - space_rem);
}
}
} /* (new_swp > bus->m_dwSizeSetRing) */
else {
dprintk(DBGLVL_BUS, "%s() tr6\n", __func__);
/* The ring buffer doesn't wrap, two simple copies */
memcpy(bus->m_pdwSetRing + curr_swp, msg, sizeof(*msg));
memcpy(bus->m_pdwSetRing + curr_swp + sizeof(*msg), buf,
msg->size);
}
dprintk(DBGLVL_BUS, "%s() new_swp = %x\n", __func__, new_swp);
/* TODO: Convert all of the volatiles and direct PCI writes into
* saa7164_writel/b calls for consistency.
*/
/* Update the bus write position */
*bus->m_pdwSetWritePos = cpu_to_le32(new_swp);
ret = SAA_OK;
out:
mutex_unlock(&bus->lock);
return ret;
}
/*
* Receive a command or a response from the bus. The implementation does not
* know if it is a command or a response it simply dequeues the data,
* depending on the bus information given in the tmComResBusInfo_t structure.
*
* Return Value:
* 0 The function executed successfully.
* < 0 One or more members are not initialized.
*/
int saa7164_bus_get(struct saa7164_dev *dev, tmComResInfo_t* msg, void *buf,
int peekonly)
{
tmComResBusInfo_t *bus = &dev->bus;
u32 bytes_to_read, write_distance, curr_grp, curr_gwp,
new_grp, buf_size, space_rem;
tmComResInfo_t msg_tmp;
int ret = SAA_ERR_BAD_PARAMETER;
if (msg == 0)
return ret;
if (msg->size > dev->bus.m_wMaxReqSize) {
printk(KERN_ERR "%s() Exceeded dev->bus.m_wMaxReqSize\n",
__func__);
return ret;
}
if ((peekonly == 0) && (msg->size > 0) && (buf == 0)) {
printk(KERN_ERR
"%s() Missing msg buf, size should be %d bytes\n",
__func__, msg->size);
return ret;
}
mutex_lock(&bus->lock);
/* Peek the bus to see if a msg exists, if it's not what we're expecting
* then return cleanly else read the message from the bus.
*/
curr_gwp = le32_to_cpu(*bus->m_pdwGetWritePos);
curr_grp = le32_to_cpu(*bus->m_pdwGetReadPos);
if (curr_gwp == curr_grp) {
dprintk(DBGLVL_BUS, "%s() No message on the bus\n", __func__);
ret = SAA_ERR_EMPTY;
goto out;
}
bytes_to_read = sizeof(*msg);
/* Calculate write distance to current read position */
write_distance = 0;
if (curr_gwp >= curr_grp)
/* Write doesn't wrap around the ring */
write_distance = curr_gwp - curr_grp;
else
/* Write wraps around the ring */
write_distance = curr_gwp + bus->m_dwSizeGetRing - curr_grp;
if (bytes_to_read > write_distance) {
printk(KERN_ERR "%s() No message/response found\n", __func__);
ret = SAA_ERR_INVALID_COMMAND;
goto out;
}
/* Calculate the new read position */
new_grp = curr_grp + bytes_to_read;
if (new_grp > bus->m_dwSizeGetRing) {
/* Ring wraps */
new_grp -= bus->m_dwSizeGetRing;
space_rem = bus->m_dwSizeGetRing - curr_grp;
memcpy(&msg_tmp, bus->m_pdwGetRing + curr_grp, space_rem);
memcpy((u8 *)&msg_tmp + space_rem, bus->m_pdwGetRing,
bytes_to_read - space_rem);
} else {
/* No wrapping */
memcpy(&msg_tmp, bus->m_pdwGetRing + curr_grp, bytes_to_read);
}
/* No need to update the read positions, because this was a peek */
/* If the caller specifically want to peek, return */
if (peekonly) {
memcpy(msg, &msg_tmp, sizeof(*msg));
goto peekout;
}
/* Check if the command/response matches what is expected */
if ((msg_tmp.id != msg->id) || (msg_tmp.command != msg->command) ||
(msg_tmp.controlselector != msg->controlselector) ||
(msg_tmp.seqno != msg->seqno) || (msg_tmp.size != msg->size)) {
printk(KERN_ERR "%s() Unexpected msg miss-match\n", __func__);
saa7164_bus_dumpmsg(dev, msg, buf);
saa7164_bus_dumpmsg(dev, &msg_tmp, 0);
ret = SAA_ERR_INVALID_COMMAND;
goto out;
}
/* Get the actual command and response from the bus */
buf_size = msg->size;
bytes_to_read = sizeof(*msg) + msg->size;
/* Calculate write distance to current read position */
write_distance = 0;
if (curr_gwp >= curr_grp)
/* Write doesn't wrap around the ring */
write_distance = curr_gwp - curr_grp;
else
/* Write wraps around the ring */
write_distance = curr_gwp + bus->m_dwSizeGetRing - curr_grp;
if (bytes_to_read > write_distance) {
printk(KERN_ERR "%s() Invalid bus state, missing msg "
"or mangled ring, faulty H/W / bad code?\n", __func__);
ret = SAA_ERR_INVALID_COMMAND;
goto out;
}
/* Calculate the new read position */
new_grp = curr_grp + bytes_to_read;
if (new_grp > bus->m_dwSizeGetRing) {
/* Ring wraps */
new_grp -= bus->m_dwSizeGetRing;
space_rem = bus->m_dwSizeGetRing - curr_grp;
if (space_rem < sizeof(*msg)) {
/* msg wraps around the ring */
memcpy(msg, bus->m_pdwGetRing + curr_grp, space_rem);
memcpy((u8 *)msg + space_rem, bus->m_pdwGetRing,
sizeof(*msg) - space_rem);
if (buf)
memcpy(buf, bus->m_pdwGetRing + sizeof(*msg) -
space_rem, buf_size);
} else if (space_rem == sizeof(*msg)) {
memcpy(msg, bus->m_pdwGetRing + curr_grp, sizeof(*msg));
if (buf)
memcpy(buf, bus->m_pdwGetRing, buf_size);
} else {
/* Additional data wraps around the ring */
memcpy(msg, bus->m_pdwGetRing + curr_grp, sizeof(*msg));
if (buf) {
memcpy(buf, bus->m_pdwGetRing + curr_grp +
sizeof(*msg), space_rem - sizeof(*msg));
memcpy(buf + space_rem - sizeof(*msg),
bus->m_pdwGetRing, bytes_to_read -
space_rem);
}
}
} else {
/* No wrapping */
memcpy(msg, bus->m_pdwGetRing + curr_grp, sizeof(*msg));
if (buf)
memcpy(buf, bus->m_pdwGetRing + curr_grp + sizeof(*msg),
buf_size);
}
/* Update the read positions, adjusting the ring */
*bus->m_pdwGetReadPos = cpu_to_le32(new_grp);
peekout:
msg->size = le16_to_cpu(msg->size);
msg->command = le16_to_cpu(msg->command);
msg->controlselector = le16_to_cpu(msg->controlselector);
ret = SAA_OK;
out:
mutex_unlock(&bus->lock);
return ret;
}

562
drivers/media/video/saa7164/saa7164-cards.c Normal file
View File

@ -0,0 +1,562 @@
/*
* Driver for the NXP SAA7164 PCIe bridge
*
* Copyright (c) 2009 Steven Toth <stoth@kernellabs.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include "saa7164.h"
/* The Bridge API needs to understand register widths (in bytes) for the
* attached I2C devices, so we can simplify the virtual i2c mechansms
* and keep the -i2c.c implementation clean.
*/
#define REGLEN_8bit 1
#define REGLEN_16bit 2
struct saa7164_board saa7164_boards[] = {
[SAA7164_BOARD_UNKNOWN] = {
/* Bridge will not load any firmware, without knowing
* the rev this would be fatal. */
.name = "Unknown",
},
[SAA7164_BOARD_UNKNOWN_REV2] = {
/* Bridge will load the v2 f/w and dump descriptors */
/* Required during new board bringup */
.name = "Generic Rev2",
.chiprev = SAA7164_CHIP_REV2,
},
[SAA7164_BOARD_UNKNOWN_REV3] = {
/* Bridge will load the v2 f/w and dump descriptors */
/* Required during new board bringup */
.name = "Generic Rev3",
.chiprev = SAA7164_CHIP_REV3,
},
[SAA7164_BOARD_HAUPPAUGE_HVR2200] = {
.name = "Hauppauge WinTV-HVR2200",
.porta = SAA7164_MPEG_DVB,
.portb = SAA7164_MPEG_DVB,
.chiprev = SAA7164_CHIP_REV3,
.unit = {{
.id = 0x06,
.type = SAA7164_UNIT_EEPROM,
.name = "4K EEPROM",
.i2c_bus_nr = SAA7164_I2C_BUS_0,
.i2c_bus_addr = 0xa0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x04,
.type = SAA7164_UNIT_TUNER,
.name = "TDA18271-1",
.i2c_bus_nr = SAA7164_I2C_BUS_1,
.i2c_bus_addr = 0xc0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x1b,
.type = SAA7164_UNIT_TUNER,
.name = "TDA18271-2",
.i2c_bus_nr = SAA7164_I2C_BUS_2,
.i2c_bus_addr = 0xc0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x1e,
.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
.name = "TDA10048-1",
.i2c_bus_nr = SAA7164_I2C_BUS_1,
.i2c_bus_addr = 0x10 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x1f,
.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
.name = "TDA10048-2",
.i2c_bus_nr = SAA7164_I2C_BUS_2,
.i2c_bus_addr = 0x12 >> 1,
.i2c_reg_len = REGLEN_8bit,
} },
},
[SAA7164_BOARD_HAUPPAUGE_HVR2200_2] = {
.name = "Hauppauge WinTV-HVR2200",
.porta = SAA7164_MPEG_DVB,
.portb = SAA7164_MPEG_DVB,
.chiprev = SAA7164_CHIP_REV2,
.unit = {{
.id = 0x06,
.type = SAA7164_UNIT_EEPROM,
.name = "4K EEPROM",
.i2c_bus_nr = SAA7164_I2C_BUS_0,
.i2c_bus_addr = 0xa0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x04,
.type = SAA7164_UNIT_TUNER,
.name = "TDA18271-1",
.i2c_bus_nr = SAA7164_I2C_BUS_1,
.i2c_bus_addr = 0xc0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x05,
.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
.name = "TDA10048-1",
.i2c_bus_nr = SAA7164_I2C_BUS_1,
.i2c_bus_addr = 0x10 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x1e,
.type = SAA7164_UNIT_TUNER,
.name = "TDA18271-2",
.i2c_bus_nr = SAA7164_I2C_BUS_2,
.i2c_bus_addr = 0xc0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x1f,
.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
.name = "TDA10048-2",
.i2c_bus_nr = SAA7164_I2C_BUS_2,
.i2c_bus_addr = 0x12 >> 1,
.i2c_reg_len = REGLEN_8bit,
} },
},
[SAA7164_BOARD_HAUPPAUGE_HVR2200_3] = {
.name = "Hauppauge WinTV-HVR2200",
.porta = SAA7164_MPEG_DVB,
.portb = SAA7164_MPEG_DVB,
.chiprev = SAA7164_CHIP_REV2,
.unit = {{
.id = 0x06,
.type = SAA7164_UNIT_EEPROM,
.name = "4K EEPROM",
.i2c_bus_nr = SAA7164_I2C_BUS_0,
.i2c_bus_addr = 0xa0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x04,
.type = SAA7164_UNIT_TUNER,
.name = "TDA18271-1",
.i2c_bus_nr = SAA7164_I2C_BUS_1,
.i2c_bus_addr = 0xc0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x05,
.type = SAA7164_UNIT_ANALOG_DEMODULATOR,
.name = "TDA8290-1",
.i2c_bus_nr = SAA7164_I2C_BUS_1,
.i2c_bus_addr = 0x84 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x1b,
.type = SAA7164_UNIT_TUNER,
.name = "TDA18271-2",
.i2c_bus_nr = SAA7164_I2C_BUS_2,
.i2c_bus_addr = 0xc0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x1c,
.type = SAA7164_UNIT_ANALOG_DEMODULATOR,
.name = "TDA8290-2",
.i2c_bus_nr = SAA7164_I2C_BUS_2,
.i2c_bus_addr = 0x84 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x1e,
.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
.name = "TDA10048-1",
.i2c_bus_nr = SAA7164_I2C_BUS_1,
.i2c_bus_addr = 0x10 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x1f,
.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
.name = "TDA10048-2",
.i2c_bus_nr = SAA7164_I2C_BUS_2,
.i2c_bus_addr = 0x12 >> 1,
.i2c_reg_len = REGLEN_8bit,
} },
},
[SAA7164_BOARD_HAUPPAUGE_HVR2250] = {
.name = "Hauppauge WinTV-HVR2250",
.porta = SAA7164_MPEG_DVB,
.portb = SAA7164_MPEG_DVB,
.chiprev = SAA7164_CHIP_REV3,
.unit = {{
.id = 0x22,
.type = SAA7164_UNIT_EEPROM,
.name = "4K EEPROM",
.i2c_bus_nr = SAA7164_I2C_BUS_0,
.i2c_bus_addr = 0xa0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x04,
.type = SAA7164_UNIT_TUNER,
.name = "TDA18271-1",
.i2c_bus_nr = SAA7164_I2C_BUS_1,
.i2c_bus_addr = 0xc0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x07,
.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
.name = "CX24228/S5H1411-1 (TOP)",
.i2c_bus_nr = SAA7164_I2C_BUS_1,
.i2c_bus_addr = 0x32 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x08,
.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
.name = "CX24228/S5H1411-1 (QAM)",
.i2c_bus_nr = SAA7164_I2C_BUS_1,
.i2c_bus_addr = 0x34 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x1e,
.type = SAA7164_UNIT_TUNER,
.name = "TDA18271-2",
.i2c_bus_nr = SAA7164_I2C_BUS_2,
.i2c_bus_addr = 0xc0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x20,
.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
.name = "CX24228/S5H1411-2 (TOP)",
.i2c_bus_nr = SAA7164_I2C_BUS_2,
.i2c_bus_addr = 0x32 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x23,
.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
.name = "CX24228/S5H1411-2 (QAM)",
.i2c_bus_nr = SAA7164_I2C_BUS_2,
.i2c_bus_addr = 0x34 >> 1,
.i2c_reg_len = REGLEN_8bit,
} },
},
[SAA7164_BOARD_HAUPPAUGE_HVR2250_2] = {
.name = "Hauppauge WinTV-HVR2250",
.porta = SAA7164_MPEG_DVB,
.portb = SAA7164_MPEG_DVB,
.chiprev = SAA7164_CHIP_REV3,
.unit = {{
.id = 0x22,
.type = SAA7164_UNIT_EEPROM,
.name = "4K EEPROM",
.i2c_bus_nr = SAA7164_I2C_BUS_0,
.i2c_bus_addr = 0xa0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x04,
.type = SAA7164_UNIT_TUNER,
.name = "TDA18271-1",
.i2c_bus_nr = SAA7164_I2C_BUS_1,
.i2c_bus_addr = 0xc0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x07,
.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
.name = "CX24228/S5H1411-1 (TOP)",
.i2c_bus_nr = SAA7164_I2C_BUS_1,
.i2c_bus_addr = 0x32 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x08,
.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
.name = "CX24228/S5H1411-1 (QAM)",
.i2c_bus_nr = SAA7164_I2C_BUS_1,
.i2c_bus_addr = 0x34 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x24,
.type = SAA7164_UNIT_TUNER,
.name = "TDA18271-2",
.i2c_bus_nr = SAA7164_I2C_BUS_2,
.i2c_bus_addr = 0xc0 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x26,
.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
.name = "CX24228/S5H1411-2 (TOP)",
.i2c_bus_nr = SAA7164_I2C_BUS_2,
.i2c_bus_addr = 0x32 >> 1,
.i2c_reg_len = REGLEN_8bit,
}, {
.id = 0x29,
.type = SAA7164_UNIT_DIGITAL_DEMODULATOR,
.name = "CX24228/S5H1411-2 (QAM)",
.i2c_bus_nr = SAA7164_I2C_BUS_2,
.i2c_bus_addr = 0x34 >> 1,
.i2c_reg_len = REGLEN_8bit,
} },
},
};
const unsigned int saa7164_bcount = ARRAY_SIZE(saa7164_boards);
/* ------------------------------------------------------------------ */
/* PCI subsystem IDs */
struct saa7164_subid saa7164_subids[] = {
{
.subvendor = 0x0070,
.subdevice = 0x8880,
.card = SAA7164_BOARD_HAUPPAUGE_HVR2250,
}, {
.subvendor = 0x0070,
.subdevice = 0x8810,
.card = SAA7164_BOARD_HAUPPAUGE_HVR2250,
}, {
.subvendor = 0x0070,
.subdevice = 0x8980,
.card = SAA7164_BOARD_HAUPPAUGE_HVR2200,
}, {
.subvendor = 0x0070,
.subdevice = 0x8900,
.card = SAA7164_BOARD_HAUPPAUGE_HVR2200_2,
}, {
.subvendor = 0x0070,
.subdevice = 0x8901,
.card = SAA7164_BOARD_HAUPPAUGE_HVR2200_3,
}, {
.subvendor = 0x0070,
.subdevice = 0x88A1,
.card = SAA7164_BOARD_HAUPPAUGE_HVR2250_2,
}, {
.subvendor = 0x0070,
.subdevice = 0x8891,
.card = SAA7164_BOARD_HAUPPAUGE_HVR2250_2,
},
};
const unsigned int saa7164_idcount = ARRAY_SIZE(saa7164_subids);
void saa7164_card_list(struct saa7164_dev *dev)
{
int i;
if (0 == dev->pci->subsystem_vendor &&
0 == dev->pci->subsystem_device) {
printk(KERN_ERR
"%s: Board has no valid PCIe Subsystem ID and can't\n"
"%s: be autodetected. Pass card=<n> insmod option to\n"
"%s: workaround that. Send complaints to the vendor\n"
"%s: of the TV card. Best regards,\n"
"%s: -- tux\n",
dev->name, dev->name, dev->name, dev->name, dev->name);
} else {
printk(KERN_ERR
"%s: Your board isn't known (yet) to the driver.\n"
"%s: Try to pick one of the existing card configs via\n"
"%s: card=<n> insmod option. Updating to the latest\n"
"%s: version might help as well.\n",
dev->name, dev->name, dev->name, dev->name);
}
printk(KERN_ERR "%s: Here are valid choices for the card=<n> insmod "
"option:\n", dev->name);
for (i = 0; i < saa7164_bcount; i++)
printk(KERN_ERR "%s: card=%d -> %s\n",
dev->name, i, saa7164_boards[i].name);
}
/* TODO: clean this define up into the -cards.c structs */
#define PCIEBRIDGE_UNITID 2
void saa7164_gpio_setup(struct saa7164_dev *dev)
{
switch (dev->board) {
case SAA7164_BOARD_HAUPPAUGE_HVR2200:
case SAA7164_BOARD_HAUPPAUGE_HVR2200_2:
case SAA7164_BOARD_HAUPPAUGE_HVR2200_3:
case SAA7164_BOARD_HAUPPAUGE_HVR2250:
case SAA7164_BOARD_HAUPPAUGE_HVR2250_2:
/*
GPIO 2: s5h1411 / tda10048-1 demod reset
GPIO 3: s5h1411 / tda10048-2 demod reset
GPIO 7: IRBlaster Zilog reset
*/
/* Reset parts by going in and out of reset */
saa7164_api_clear_gpiobit(dev, PCIEBRIDGE_UNITID, 2);
saa7164_api_clear_gpiobit(dev, PCIEBRIDGE_UNITID, 3);
msleep(10);
saa7164_api_set_gpiobit(dev, PCIEBRIDGE_UNITID, 2);
saa7164_api_set_gpiobit(dev, PCIEBRIDGE_UNITID, 3);
break;
}
}
static void hauppauge_eeprom(struct saa7164_dev *dev, u8 *eeprom_data)
{
struct tveeprom tv;
/* TODO: Assumption: eeprom on bus 0 */
tveeprom_hauppauge_analog(&dev->i2c_bus[0].i2c_client, &tv,
eeprom_data);
/* Make sure we support the board model */
switch (tv.model) {
case 88001:
/* Development board - Limit circulation */
/* WinTV-HVR2250 (PCIe, Retail, full-height bracket)
* ATSC/QAM (TDA18271/S5H1411) and basic analog, no IR, FM */
case 88021:
/* WinTV-HVR2250 (PCIe, Retail, full-height bracket)
* ATSC/QAM (TDA18271/S5H1411) and basic analog, MCE CIR, FM */
break;
case 88041:
/* WinTV-HVR2250 (PCIe, Retail, full-height bracket)
* ATSC/QAM (TDA18271/S5H1411) and basic analog, no IR, FM */
break;
case 88061:
/* WinTV-HVR2250 (PCIe, Retail, full-height bracket)
* ATSC/QAM (TDA18271/S5H1411) and basic analog, FM */
break;
case 89519:
case 89609:
/* WinTV-HVR2200 (PCIe, Retail, full-height)
* DVB-T (TDA18271/TDA10048) and basic analog, no IR */
break;
case 89619:
/* WinTV-HVR2200 (PCIe, Retail, half-height)
* DVB-T (TDA18271/TDA10048) and basic analog, no IR */
break;
default:
printk(KERN_ERR "%s: Warning: Unknown Hauppauge model #%d\n",
dev->name, tv.model);
break;
}
printk(KERN_INFO "%s: Hauppauge eeprom: model=%d\n", dev->name,
tv.model);
}
void saa7164_card_setup(struct saa7164_dev *dev)
{
static u8 eeprom[256];
if (dev->i2c_bus[0].i2c_rc == 0) {
if (saa7164_api_read_eeprom(dev, &eeprom[0],
sizeof(eeprom)) < 0)
return;
}
switch (dev->board) {
case SAA7164_BOARD_HAUPPAUGE_HVR2200:
case SAA7164_BOARD_HAUPPAUGE_HVR2200_2:
case SAA7164_BOARD_HAUPPAUGE_HVR2200_3:
case SAA7164_BOARD_HAUPPAUGE_HVR2250:
case SAA7164_BOARD_HAUPPAUGE_HVR2250_2:
hauppauge_eeprom(dev, &eeprom[0]);
break;
}
}
/* With most other drivers, the kernel expects to communicate with subdrivers
* through i2c. This bridge does not allow that, it does not expose any direct
* access to I2C. Instead we have to communicate through the device f/w for
* register access to 'processing units'. Each unit has a unique
* id, regardless of how the physical implementation occurs across
* the three physical i2c busses. The being said if we want leverge of
* the existing kernel drivers for tuners and demods we have to 'speak i2c',
* to this bridge implements 3 virtual i2c buses. This is a helper function
* for those.
*
* Description: Translate the kernels notion of an i2c address and bus into
* the appropriate unitid.
*/
int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr)
{
/* For a given bus and i2c device address, return the saa7164 unique
* unitid. < 0 on error */
struct saa7164_dev *dev = bus->dev;
struct saa7164_unit *unit;
int i;
for (i = 0; i < SAA7164_MAX_UNITS; i++) {
unit = &saa7164_boards[dev->board].unit[i];
if (unit->type == SAA7164_UNIT_UNDEFINED)
continue;
if ((bus->nr == unit->i2c_bus_nr) &&
(addr == unit->i2c_bus_addr))
return unit->id;
}
return -1;
}
/* The 7164 API needs to know the i2c register length in advance.
* this is a helper function. Based on a specific chip addr and bus return the
* reg length.
*/
int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr)
{
/* For a given bus and i2c device address, return the
* saa7164 registry address width. < 0 on error
*/
struct saa7164_dev *dev = bus->dev;
struct saa7164_unit *unit;
int i;
for (i = 0; i < SAA7164_MAX_UNITS; i++) {
unit = &saa7164_boards[dev->board].unit[i];
if (unit->type == SAA7164_UNIT_UNDEFINED)
continue;
if ((bus->nr == unit->i2c_bus_nr) &&
(addr == unit->i2c_bus_addr))
return unit->i2c_reg_len;
}
return -1;
}
/* TODO: implement a 'findeeprom' functio like the above and fix any other
* eeprom related todo's in -api.c.
*/
/* Translate a unitid into a x readable device name, for display purposes. */
char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid)
{
char *undefed = "UNDEFINED";
char *bridge = "BRIDGE";
struct saa7164_unit *unit;
int i;
if (unitid == 0)
return bridge;
for (i = 0; i < SAA7164_MAX_UNITS; i++) {
unit = &saa7164_boards[dev->board].unit[i];
if (unit->type == SAA7164_UNIT_UNDEFINED)
continue;
if (unitid == unit->id)
return unit->name;
}
return undefed;
}

529
drivers/media/video/saa7164/saa7164-cmd.c Normal file
View File

@ -0,0 +1,529 @@
/*
* Driver for the NXP SAA7164 PCIe bridge
*
* Copyright (c) 2009 Steven Toth <stoth@kernellabs.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/wait.h>
#include "saa7164.h"
int saa7164_cmd_alloc_seqno(struct saa7164_dev *dev)
{
int i, ret = -1;
mutex_lock(&dev->lock);
for (i = 0; i < SAA_CMD_MAX_MSG_UNITS; i++) {
if (dev->cmds[i].inuse == 0) {
dev->cmds[i].inuse = 1;
dev->cmds[i].signalled = 0;
dev->cmds[i].timeout = 0;
ret = dev->cmds[i].seqno;
break;
}
}
mutex_unlock(&dev->lock);
return ret;
}
void saa7164_cmd_free_seqno(struct saa7164_dev *dev, u8 seqno)
{
mutex_lock(&dev->lock);
if ((dev->cmds[seqno].inuse == 1) &&
(dev->cmds[seqno].seqno == seqno)) {
dev->cmds[seqno].inuse = 0;
dev->cmds[seqno].signalled = 0;
dev->cmds[seqno].timeout = 0;
}
mutex_unlock(&dev->lock);
}
void saa7164_cmd_timeout_seqno(struct saa7164_dev *dev, u8 seqno)
{
mutex_lock(&dev->lock);
if ((dev->cmds[seqno].inuse == 1) &&
(dev->cmds[seqno].seqno == seqno)) {
dev->cmds[seqno].timeout = 1;
}
mutex_unlock(&dev->lock);
}
u32 saa7164_cmd_timeout_get(struct saa7164_dev *dev, u8 seqno)
{
int ret = 0;
mutex_lock(&dev->lock);
if ((dev->cmds[seqno].inuse == 1) &&
(dev->cmds[seqno].seqno == seqno)) {
ret = dev->cmds[seqno].timeout;
}
mutex_unlock(&dev->lock);
return ret;
}
/* Commands to the f/w get marshelled to/from this code then onto the PCI
* -bus/c running buffer. */
int saa7164_cmd_dequeue(struct saa7164_dev *dev)
{
int loop = 1;
int ret;
u32 timeout;
wait_queue_head_t *q = 0;
u8 tmp[512];
dprintk(DBGLVL_CMD, "%s()\n", __func__);
while (loop) {
tmComResInfo_t tRsp = { 0, 0, 0, 0, 0, 0 };
ret = saa7164_bus_get(dev, &tRsp, NULL, 1);
if (ret == SAA_ERR_EMPTY)
return SAA_OK;
if (ret != SAA_OK)
return ret;
q = &dev->cmds[tRsp.seqno].wait;
timeout = saa7164_cmd_timeout_get(dev, tRsp.seqno);
dprintk(DBGLVL_CMD, "%s() timeout = %d\n", __func__, timeout);
if (timeout) {
printk(KERN_ERR "found timed out command on the bus\n");
/* Clean the bus */
ret = saa7164_bus_get(dev, &tRsp, &tmp, 0);
printk(KERN_ERR "ret = %x\n", ret);
if (ret == SAA_ERR_EMPTY)
/* Someone else already fetched the response */
return SAA_OK;
if (ret != SAA_OK)
return ret;
if (tRsp.flags & PVC_CMDFLAG_CONTINUE)
printk(KERN_ERR "split response\n");
else
saa7164_cmd_free_seqno(dev, tRsp.seqno);
printk(KERN_ERR " timeout continue\n");
continue;
}
dprintk(DBGLVL_CMD, "%s() signalled seqno(%d) (for dequeue)\n",
__func__, tRsp.seqno);
dev->cmds[tRsp.seqno].signalled = 1;
wake_up(q);
return SAA_OK;
}
return SAA_OK;
}
int saa7164_cmd_set(struct saa7164_dev *dev, tmComResInfo_t* msg, void *buf)
{
tmComResBusInfo_t *bus = &dev->bus;
u8 cmd_sent;
u16 size, idx;
u32 cmds;
void *tmp;
int ret = -1;
if (!msg) {
printk(KERN_ERR "%s() !msg\n", __func__);
return SAA_ERR_BAD_PARAMETER;
}
mutex_lock(&dev->cmds[msg->id].lock);
size = msg->size;
idx = 0;
cmds = size / bus->m_wMaxReqSize;
if (size % bus->m_wMaxReqSize == 0)
cmds -= 1;
cmd_sent = 0;
/* Split the request into smaller chunks */
for (idx = 0; idx < cmds; idx++) {
msg->flags |= SAA_CMDFLAG_CONTINUE;
msg->size = bus->m_wMaxReqSize;
tmp = buf + idx * bus->m_wMaxReqSize;
ret = saa7164_bus_set(dev, msg, tmp);
if (ret != SAA_OK) {
printk(KERN_ERR "%s() set failed %d\n", __func__, ret);
if (cmd_sent) {
ret = SAA_ERR_BUSY;
goto out;
}
ret = SAA_ERR_OVERFLOW;
goto out;
}
cmd_sent = 1;
}
/* If not the last command... */
if (idx != 0)
msg->flags &= ~SAA_CMDFLAG_CONTINUE;
msg->size = size - idx * bus->m_wMaxReqSize;
ret = saa7164_bus_set(dev, msg, buf + idx * bus->m_wMaxReqSize);
if (ret != SAA_OK) {
printk(KERN_ERR "%s() set last failed %d\n", __func__, ret);
if (cmd_sent) {
ret = SAA_ERR_BUSY;
goto out;
}
ret = SAA_ERR_OVERFLOW;
goto out;
}
ret = SAA_OK;
out:
mutex_unlock(&dev->cmds[msg->id].lock);
return ret;
}
/* Wait for a signal event, without holding a mutex. Either return TIMEOUT if
* the event never occured, or SAA_OK if it was signaled during the wait.
*/
int saa7164_cmd_wait(struct saa7164_dev *dev, u8 seqno)
{
wait_queue_head_t *q = 0;
int ret = SAA_BUS_TIMEOUT;
unsigned long stamp;
int r;
if (debug >= 4)
saa7164_bus_dump(dev);
dprintk(DBGLVL_CMD, "%s(seqno=%d)\n", __func__, seqno);
mutex_lock(&dev->lock);
if ((dev->cmds[seqno].inuse == 1) &&
(dev->cmds[seqno].seqno == seqno)) {
q = &dev->cmds[seqno].wait;
}
mutex_unlock(&dev->lock);
if (q) {
/* If we haven't been signalled we need to wait */
if (dev->cmds[seqno].signalled == 0) {
stamp = jiffies;
dprintk(DBGLVL_CMD,
"%s(seqno=%d) Waiting (signalled=%d)\n",
__func__, seqno, dev->cmds[seqno].signalled);
/* Wait for signalled to be flagged or timeout */
wait_event_timeout(*q, dev->cmds[seqno].signalled, HZ);
r = time_before(jiffies, stamp + HZ);
if (r)
ret = SAA_OK;
else
saa7164_cmd_timeout_seqno(dev, seqno);
dprintk(DBGLVL_CMD, "%s(seqno=%d) Waiting res = %d "
"(signalled=%d)\n", __func__, seqno, r,
dev->cmds[seqno].signalled);
} else
ret = SAA_OK;
} else
printk(KERN_ERR "%s(seqno=%d) seqno is invalid\n",
__func__, seqno);
return ret;
}
void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno)
{
int i;
dprintk(DBGLVL_CMD, "%s()\n", __func__);
mutex_lock(&dev->lock);
for (i = 0; i < SAA_CMD_MAX_MSG_UNITS; i++) {
if (dev->cmds[i].inuse == 1) {
dprintk(DBGLVL_CMD,
"seqno %d inuse, sig = %d, t/out = %d\n",
dev->cmds[i].seqno,
dev->cmds[i].signalled,
dev->cmds[i].timeout);
}
}
for (i = 0; i < SAA_CMD_MAX_MSG_UNITS; i++) {
if ((dev->cmds[i].inuse == 1) && ((i == 0) ||
(dev->cmds[i].signalled) || (dev->cmds[i].timeout))) {
dprintk(DBGLVL_CMD, "%s(seqno=%d) calling wake_up\n",
__func__, i);
dev->cmds[i].signalled = 1;
wake_up(&dev->cmds[i].wait);
}
}
mutex_unlock(&dev->lock);
}
int saa7164_cmd_send(struct saa7164_dev *dev, u8 id, tmComResCmd_t command,
u16 controlselector, u16 size, void *buf)
{
tmComResInfo_t command_t, *pcommand_t;
tmComResInfo_t response_t, *presponse_t;
u8 errdata[256];
u16 resp_dsize;
u16 data_recd;
u32 loop;
int ret;
int safety = 0;
dprintk(DBGLVL_CMD, "%s(unitid = %s (%d) , command = 0x%x, "
"sel = 0x%x)\n", __func__, saa7164_unitid_name(dev, id), id,
command, controlselector);
if ((size == 0) || (buf == 0)) {
printk(KERN_ERR "%s() Invalid param\n", __func__);
return SAA_ERR_BAD_PARAMETER;
}
/* Prepare some basic command/response structures */
memset(&command_t, 0, sizeof(command_t));
memset(&response_t, 0, sizeof(&response_t));
pcommand_t = &command_t;
presponse_t = &response_t;
command_t.id = id;
command_t.command = command;
command_t.controlselector = controlselector;
command_t.size = size;
/* Allocate a unique sequence number */
ret = saa7164_cmd_alloc_seqno(dev);
if (ret < 0) {
printk(KERN_ERR "%s() No free sequences\n", __func__);
ret = SAA_ERR_NO_RESOURCES;
goto out;
}
command_t.seqno = (u8)ret;
/* Send Command */
resp_dsize = size;
pcommand_t->size = size;
dprintk(DBGLVL_CMD, "%s() pcommand_t.seqno = %d\n",
__func__, pcommand_t->seqno);
dprintk(DBGLVL_CMD, "%s() pcommand_t.size = %d\n",
__func__, pcommand_t->size);
ret = saa7164_cmd_set(dev, pcommand_t, buf);
if (ret != SAA_OK) {
printk(KERN_ERR "%s() set command failed %d\n", __func__, ret);
if (ret != SAA_ERR_BUSY)
saa7164_cmd_free_seqno(dev, pcommand_t->seqno);
else
/* Flag a timeout, because at least one
* command was sent */
saa7164_cmd_timeout_seqno(dev, pcommand_t->seqno);
goto out;
}
/* With split responses we have to collect the msgs piece by piece */
data_recd = 0;
loop = 1;
while (loop) {
dprintk(DBGLVL_CMD, "%s() loop\n", __func__);
ret = saa7164_cmd_wait(dev, pcommand_t->seqno);
dprintk(DBGLVL_CMD, "%s() loop ret = %d\n", __func__, ret);
/* if power is down and this is not a power command ... */
if (ret == SAA_BUS_TIMEOUT) {
printk(KERN_ERR "Event timed out\n");
saa7164_cmd_timeout_seqno(dev, pcommand_t->seqno);
return ret;
}
if (ret != SAA_OK) {
printk(KERN_ERR "spurious error\n");
return ret;
}
/* Peek response */
ret = saa7164_bus_get(dev, presponse_t, NULL, 1);
if (ret == SAA_ERR_EMPTY) {
dprintk(4, "%s() SAA_ERR_EMPTY\n", __func__);
continue;
}
if (ret != SAA_OK) {
printk(KERN_ERR "peek failed\n");
return ret;
}
dprintk(DBGLVL_CMD, "%s() presponse_t->seqno = %d\n",
__func__, presponse_t->seqno);
dprintk(DBGLVL_CMD, "%s() presponse_t->flags = 0x%x\n",
__func__, presponse_t->flags);
dprintk(DBGLVL_CMD, "%s() presponse_t->size = %d\n",
__func__, presponse_t->size);
/* Check if the response was for our command */
if (presponse_t->seqno != pcommand_t->seqno) {
dprintk(DBGLVL_CMD,
"wrong event: seqno = %d, "
"expected seqno = %d, "
"will dequeue regardless\n",
presponse_t->seqno, pcommand_t->seqno);
ret = saa7164_cmd_dequeue(dev);
if (ret != SAA_OK) {
printk(KERN_ERR "dequeue failed, ret = %d\n",
ret);
if (safety++ > 16) {
printk(KERN_ERR
"dequeue exceeded, safety exit\n");
return SAA_ERR_BUSY;
}
}
continue;
}
if ((presponse_t->flags & PVC_RESPONSEFLAG_ERROR) != 0) {
memset(&errdata[0], 0, sizeof(errdata));
ret = saa7164_bus_get(dev, presponse_t, &errdata[0], 0);
if (ret != SAA_OK) {
printk(KERN_ERR "get error(2)\n");
return ret;
}
saa7164_cmd_free_seqno(dev, pcommand_t->seqno);
dprintk(DBGLVL_CMD, "%s() errdata %02x%02x%02x%02x\n",
__func__, errdata[0], errdata[1], errdata[2],
errdata[3]);
/* Map error codes */
dprintk(DBGLVL_CMD, "%s() cmd, error code = 0x%x\n",
__func__, errdata[0]);
switch (errdata[0]) {
case PVC_ERRORCODE_INVALID_COMMAND:
dprintk(DBGLVL_CMD, "%s() INVALID_COMMAND\n",
__func__);
ret = SAA_ERR_INVALID_COMMAND;
break;
case PVC_ERRORCODE_INVALID_DATA:
dprintk(DBGLVL_CMD, "%s() INVALID_DATA\n",
__func__);
ret = SAA_ERR_BAD_PARAMETER;
break;
case PVC_ERRORCODE_TIMEOUT:
dprintk(DBGLVL_CMD, "%s() TIMEOUT\n", __func__);
ret = SAA_ERR_TIMEOUT;
break;
case PVC_ERRORCODE_NAK:
dprintk(DBGLVL_CMD, "%s() NAK\n", __func__);
ret = SAA_ERR_NULL_PACKET;
break;
case PVC_ERRORCODE_UNKNOWN:
case PVC_ERRORCODE_INVALID_CONTROL:
dprintk(DBGLVL_CMD,
"%s() UNKNOWN OR INVALID CONTROL\n",
__func__);
default:
dprintk(DBGLVL_CMD, "%s() UNKNOWN\n", __func__);
ret = SAA_ERR_NOT_SUPPORTED;
}
/* See of other commands are on the bus */
if (saa7164_cmd_dequeue(dev) != SAA_OK)
printk(KERN_ERR "dequeue(2) failed\n");
return ret;
}
/* If response is invalid */
if ((presponse_t->id != pcommand_t->id) ||
(presponse_t->command != pcommand_t->command) ||
(presponse_t->controlselector !=
pcommand_t->controlselector) ||
(((resp_dsize - data_recd) != presponse_t->size) &&
!(presponse_t->flags & PVC_CMDFLAG_CONTINUE)) ||
((resp_dsize - data_recd) < presponse_t->size)) {
/* Invalid */
dprintk(DBGLVL_CMD, "%s() Invalid\n", __func__);
ret = saa7164_bus_get(dev, presponse_t, 0, 0);
if (ret != SAA_OK) {
printk(KERN_ERR "get failed\n");
return ret;
}
/* See of other commands are on the bus */
if (saa7164_cmd_dequeue(dev) != SAA_OK)
printk(KERN_ERR "dequeue(3) failed\n");
continue;
}
/* OK, now we're actually getting out correct response */
ret = saa7164_bus_get(dev, presponse_t, buf + data_recd, 0);
if (ret != SAA_OK) {
printk(KERN_ERR "get failed\n");
return ret;
}
data_recd = presponse_t->size + data_recd;
if (resp_dsize == data_recd) {
dprintk(DBGLVL_CMD, "%s() Resp recd\n", __func__);
break;
}
/* See of other commands are on the bus */
if (saa7164_cmd_dequeue(dev) != SAA_OK)
printk(KERN_ERR "dequeue(3) failed\n");
continue;
} /* (loop) */
/* Release the sequence number allocation */
saa7164_cmd_free_seqno(dev, pcommand_t->seqno);
/* if powerdown signal all pending commands */
dprintk(DBGLVL_CMD, "%s() Calling dequeue then exit\n", __func__);
/* See of other commands are on the bus */
if (saa7164_cmd_dequeue(dev) != SAA_OK)
printk(KERN_ERR "dequeue(4) failed\n");
ret = SAA_OK;
out:
return ret;
}

746
drivers/media/video/saa7164/saa7164-core.c Normal file
View File

@ -0,0 +1,746 @@
/*
* Driver for the NXP SAA7164 PCIe bridge
*
* Copyright (c) 2009 Steven Toth <stoth@kernellabs.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/init.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kmod.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <asm/div64.h>
#include "saa7164.h"
MODULE_DESCRIPTION("Driver for NXP SAA7164 based TV cards");
MODULE_AUTHOR("Steven Toth <stoth@hauppauge.com>");
MODULE_LICENSE("GPL");
/*
1 Basic
2
4 i2c
8 api
16 cmd
32 bus
*/
unsigned int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable debug messages");
static unsigned int card[] = {[0 ... (SAA7164_MAXBOARDS - 1)] = UNSET };
module_param_array(card, int, NULL, 0444);
MODULE_PARM_DESC(card, "card type");
static unsigned int saa7164_devcount;
static DEFINE_MUTEX(devlist);
LIST_HEAD(saa7164_devlist);
#define INT_SIZE 16
static void saa7164_work_cmdhandler(struct work_struct *w)
{
struct saa7164_dev *dev = container_of(w, struct saa7164_dev, workcmd);
/* Wake up any complete commands */
saa7164_cmd_signal(dev, 0);
}
static void saa7164_buffer_deliver(struct saa7164_buffer *buf)
{
struct saa7164_tsport *port = buf->port;
/* Feed the transport payload into the kernel demux */
dvb_dmx_swfilter_packets(&port->dvb.demux, buf->cpu,
SAA7164_TS_NUMBER_OF_LINES);
}
static irqreturn_t saa7164_irq_ts(struct saa7164_tsport *port)
{
struct saa7164_dev *dev = port->dev;
struct saa7164_buffer *buf;
struct list_head *c, *n;
int wp, i = 0, rp;
/* Find the current write point from the hardware */
wp = saa7164_readl(port->bufcounter);
if (wp > (port->hwcfg.buffercount - 1))
BUG();
/* Find the previous buffer to the current write point */
if (wp == 0)
rp = 7;
else
rp = wp - 1;
/* Lookup the WP in the buffer list */
/* TODO: turn this into a worker thread */
list_for_each_safe(c, n, &port->dmaqueue.list) {
buf = list_entry(c, struct saa7164_buffer, list);
if (i++ > port->hwcfg.buffercount)
BUG();
if (buf->nr == rp) {
/* Found the buffer, deal with it */
dprintk(DBGLVL_IRQ, "%s() wp: %d processing: %d\n",
__func__, wp, rp);
saa7164_buffer_deliver(buf);
break;
}
}
return 0;
}
/* Primary IRQ handler and dispatch mechanism */
static irqreturn_t saa7164_irq(int irq, void *dev_id)
{
struct saa7164_dev *dev = dev_id;
u32 hwacc = 0, interruptid;
u32 intstat[INT_SIZE/4];
int i, handled = 0, bit;
/* Check that the hardware is accessable. If the status bytes are
* 0xFF then the device is not accessable, the the IRQ belongs
* to another driver.
*/
for (i = 0; i < INT_SIZE/4; i++) {
/* TODO: Convert into saa7164_readl() */
/* Read the 4 hardware interrupt registers */
intstat[i] = *(dev->InterruptStatus + i);
if (intstat[i] != 0xffffffff)
hwacc = 1;
}
if (hwacc == 0) {
handled = 0;
goto out;
}
handled = 1;
/* For each of the HW interrupt registers */
for (i = 0; i < INT_SIZE/4; i++) {
if (intstat[i]) {
/* Each function of the board has it's own interruptid.
* Find the function that triggered then call
* it's handler.
*/
for (bit = 0; bit < 32; bit++) {
if (((intstat[i] >> bit) & 0x00000001) == 0)
continue;
/* Calculate the interrupt id (0x00 to 0x7f) */
interruptid = (i * 32) + bit;
if (interruptid == dev->intfdesc.bInterruptId) {
/* A response to an cmd/api call */
schedule_work(&dev->workcmd);
} else if (interruptid ==
dev->ts1.hwcfg.interruptid) {
/* Transport path 1 */
saa7164_irq_ts(&dev->ts1);
} else if (interruptid ==
dev->ts2.hwcfg.interruptid) {
/* Transport path 2 */
saa7164_irq_ts(&dev->ts2);
} else {
/* Find the function */
dprintk(DBGLVL_IRQ,
"%s() unhandled interrupt "
"reg 0x%x bit 0x%x "
"intid = 0x%x\n",
__func__, i, bit, interruptid);
}
}
/* TODO: Convert into saa7164_writel() */
/* Ack it */
*(dev->InterruptAck + i) = intstat[i];
}
}
out:
return IRQ_RETVAL(handled);
}
void saa7164_getfirmwarestatus(struct saa7164_dev *dev)
{
struct saa7164_fw_status *s = &dev->fw_status;
dev->fw_status.status = saa7164_readl(SAA_DEVICE_SYSINIT_STATUS);
dev->fw_status.mode = saa7164_readl(SAA_DEVICE_SYSINIT_MODE);
dev->fw_status.spec = saa7164_readl(SAA_DEVICE_SYSINIT_SPEC);
dev->fw_status.inst = saa7164_readl(SAA_DEVICE_SYSINIT_INST);
dev->fw_status.cpuload = saa7164_readl(SAA_DEVICE_SYSINIT_CPULOAD);
dev->fw_status.remainheap =
saa7164_readl(SAA_DEVICE_SYSINIT_REMAINHEAP);
dprintk(1, "Firmware status:\n");
dprintk(1, " .status = 0x%08x\n", s->status);
dprintk(1, " .mode = 0x%08x\n", s->mode);
dprintk(1, " .spec = 0x%08x\n", s->spec);
dprintk(1, " .inst = 0x%08x\n", s->inst);
dprintk(1, " .cpuload = 0x%08x\n", s->cpuload);
dprintk(1, " .remainheap = 0x%08x\n", s->remainheap);
}
u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev)
{
u32 reg;
reg = saa7164_readl(SAA_DEVICE_VERSION);
dprintk(1, "Device running firmware version %d.%d.%d.%d (0x%x)\n",
(reg & 0x0000fc00) >> 10,
(reg & 0x000003e0) >> 5,
(reg & 0x0000001f),
(reg & 0xffff0000) >> 16,
reg);
return reg;
}
/* TODO: Debugging func, remove */
void saa7164_dumphex16(struct saa7164_dev *dev, u8 *buf, int len)
{
int i;
printk(KERN_INFO "--------------------> "
"00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n");
for (i = 0; i < len; i += 16)
printk(KERN_INFO " [0x%08x] "
"%02x %02x %02x %02x %02x %02x %02x %02x "
"%02x %02x %02x %02x %02x %02x %02x %02x\n", i,
*(buf+i+0), *(buf+i+1), *(buf+i+2), *(buf+i+3),
*(buf+i+4), *(buf+i+5), *(buf+i+6), *(buf+i+7),
*(buf+i+8), *(buf+i+9), *(buf+i+10), *(buf+i+11),
*(buf+i+12), *(buf+i+13), *(buf+i+14), *(buf+i+15));
}
/* TODO: Debugging func, remove */
void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr)
{
int i;
dprintk(1, "--------------------> "
"00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\n");
for (i = 0; i < 0x100; i += 16)
dprintk(1, "region0[0x%08x] = "
"%02x %02x %02x %02x %02x %02x %02x %02x"
" %02x %02x %02x %02x %02x %02x %02x %02x\n", i,
(u8)saa7164_readb(addr + i + 0),
(u8)saa7164_readb(addr + i + 1),
(u8)saa7164_readb(addr + i + 2),
(u8)saa7164_readb(addr + i + 3),
(u8)saa7164_readb(addr + i + 4),
(u8)saa7164_readb(addr + i + 5),
(u8)saa7164_readb(addr + i + 6),
(u8)saa7164_readb(addr + i + 7),
(u8)saa7164_readb(addr + i + 8),
(u8)saa7164_readb(addr + i + 9),
(u8)saa7164_readb(addr + i + 10),
(u8)saa7164_readb(addr + i + 11),
(u8)saa7164_readb(addr + i + 12),
(u8)saa7164_readb(addr + i + 13),
(u8)saa7164_readb(addr + i + 14),
(u8)saa7164_readb(addr + i + 15)
);
}
static void saa7164_dump_hwdesc(struct saa7164_dev *dev)
{
dprintk(1, "@0x%p hwdesc sizeof(tmComResHWDescr_t) = %lu bytes\n",
&dev->hwdesc, sizeof(tmComResHWDescr_t));
dprintk(1, " .bLength = 0x%x\n", dev->hwdesc.bLength);
dprintk(1, " .bDescriptorType = 0x%x\n", dev->hwdesc.bDescriptorType);
dprintk(1, " .bDescriptorSubtype = 0x%x\n",
dev->hwdesc.bDescriptorSubtype);
dprintk(1, " .bcdSpecVersion = 0x%x\n", dev->hwdesc.bcdSpecVersion);
dprintk(1, " .dwClockFrequency = 0x%x\n", dev->hwdesc.dwClockFrequency);
dprintk(1, " .dwClockUpdateRes = 0x%x\n", dev->hwdesc.dwClockUpdateRes);
dprintk(1, " .bCapabilities = 0x%x\n", dev->hwdesc.bCapabilities);
dprintk(1, " .dwDeviceRegistersLocation = 0x%x\n",
dev->hwdesc.dwDeviceRegistersLocation);
dprintk(1, " .dwHostMemoryRegion = 0x%x\n",
dev->hwdesc.dwHostMemoryRegion);
dprintk(1, " .dwHostMemoryRegionSize = 0x%x\n",
dev->hwdesc.dwHostMemoryRegionSize);
dprintk(1, " .dwHostHibernatMemRegion = 0x%x\n",
dev->hwdesc.dwHostHibernatMemRegion);
dprintk(1, " .dwHostHibernatMemRegionSize = 0x%x\n",
dev->hwdesc.dwHostHibernatMemRegionSize);
}
static void saa7164_dump_intfdesc(struct saa7164_dev *dev)
{
dprintk(1, "@0x%p intfdesc "
"sizeof(tmComResInterfaceDescr_t) = %lu bytes\n",
&dev->intfdesc, sizeof(tmComResInterfaceDescr_t));
dprintk(1, " .bLength = 0x%x\n", dev->intfdesc.bLength);
dprintk(1, " .bDescriptorType = 0x%x\n", dev->intfdesc.bDescriptorType);
dprintk(1, " .bDescriptorSubtype = 0x%x\n",
dev->intfdesc.bDescriptorSubtype);
dprintk(1, " .bFlags = 0x%x\n", dev->intfdesc.bFlags);
dprintk(1, " .bInterfaceType = 0x%x\n", dev->intfdesc.bInterfaceType);
dprintk(1, " .bInterfaceId = 0x%x\n", dev->intfdesc.bInterfaceId);
dprintk(1, " .bBaseInterface = 0x%x\n", dev->intfdesc.bBaseInterface);
dprintk(1, " .bInterruptId = 0x%x\n", dev->intfdesc.bInterruptId);
dprintk(1, " .bDebugInterruptId = 0x%x\n",
dev->intfdesc.bDebugInterruptId);
dprintk(1, " .BARLocation = 0x%x\n", dev->intfdesc.BARLocation);
}
static void saa7164_dump_busdesc(struct saa7164_dev *dev)
{
dprintk(1, "@0x%p busdesc sizeof(tmComResBusDescr_t) = %lu bytes\n",
&dev->busdesc, sizeof(tmComResBusDescr_t));
dprintk(1, " .CommandRing = 0x%016Lx\n", dev->busdesc.CommandRing);
dprintk(1, " .ResponseRing = 0x%016Lx\n", dev->busdesc.ResponseRing);
dprintk(1, " .CommandWrite = 0x%x\n", dev->busdesc.CommandWrite);
dprintk(1, " .CommandRead = 0x%x\n", dev->busdesc.CommandRead);
dprintk(1, " .ResponseWrite = 0x%x\n", dev->busdesc.ResponseWrite);
dprintk(1, " .ResponseRead = 0x%x\n", dev->busdesc.ResponseRead);
}
/* Much of the hardware configuration and PCI registers are configured
* dynamically depending on firmware. We have to cache some initial
* structures then use these to locate other important structures
* from PCI space.
*/
static void saa7164_get_descriptors(struct saa7164_dev *dev)
{
memcpy(&dev->hwdesc, dev->bmmio, sizeof(tmComResHWDescr_t));
memcpy(&dev->intfdesc, dev->bmmio + sizeof(tmComResHWDescr_t),
sizeof(tmComResInterfaceDescr_t));
memcpy(&dev->busdesc, dev->bmmio + dev->intfdesc.BARLocation,
sizeof(tmComResBusDescr_t));
if (dev->hwdesc.bLength != sizeof(tmComResHWDescr_t)) {
printk(KERN_ERR "Structure tmComResHWDescr_t is mangled\n");
printk(KERN_ERR "Need %x got %lu\n", dev->hwdesc.bLength,
sizeof(tmComResHWDescr_t));
} else
saa7164_dump_hwdesc(dev);
if (dev->intfdesc.bLength != sizeof(tmComResInterfaceDescr_t)) {
printk(KERN_ERR "struct tmComResInterfaceDescr_t is mangled\n");
printk(KERN_ERR "Need %x got %lu\n", dev->intfdesc.bLength,
sizeof(tmComResInterfaceDescr_t));
} else
saa7164_dump_intfdesc(dev);
saa7164_dump_busdesc(dev);
}
static int saa7164_pci_quirks(struct saa7164_dev *dev)
{
return 0;
}
static int get_resources(struct saa7164_dev *dev)
{
if (request_mem_region(pci_resource_start(dev->pci, 0),
pci_resource_len(dev->pci, 0), dev->name)) {
if (request_mem_region(pci_resource_start(dev->pci, 2),
pci_resource_len(dev->pci, 2), dev->name))
return 0;
}
printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx or 0x%llx\n",
dev->name,
(u64)pci_resource_start(dev->pci, 0),
(u64)pci_resource_start(dev->pci, 2));
return -EBUSY;
}
static int saa7164_dev_setup(struct saa7164_dev *dev)
{
int i;
mutex_init(&dev->lock);
atomic_inc(&dev->refcount);
dev->nr = saa7164_devcount++;
sprintf(dev->name, "saa7164[%d]", dev->nr);
mutex_lock(&devlist);
list_add_tail(&dev->devlist, &saa7164_devlist);
mutex_unlock(&devlist);
/* board config */
dev->board = UNSET;
if (card[dev->nr] < saa7164_bcount)
dev->board = card[dev->nr];
for (i = 0; UNSET == dev->board && i < saa7164_idcount; i++)
if (dev->pci->subsystem_vendor == saa7164_subids[i].subvendor &&
dev->pci->subsystem_device ==
saa7164_subids[i].subdevice)
dev->board = saa7164_subids[i].card;
if (UNSET == dev->board) {
dev->board = SAA7164_BOARD_UNKNOWN;
saa7164_card_list(dev);
}
dev->pci_bus = dev->pci->bus->number;
dev->pci_slot = PCI_SLOT(dev->pci->devfn);
/* I2C Defaults / setup */
dev->i2c_bus[0].dev = dev;
dev->i2c_bus[0].nr = 0;
dev->i2c_bus[1].dev = dev;
dev->i2c_bus[1].nr = 1;
dev->i2c_bus[2].dev = dev;
dev->i2c_bus[2].nr = 2;
/* Transport port A Defaults / setup */
dev->ts1.dev = dev;
dev->ts1.nr = 0;
mutex_init(&dev->ts1.dvb.lock);
INIT_LIST_HEAD(&dev->ts1.dmaqueue.list);
INIT_LIST_HEAD(&dev->ts1.dummy_dmaqueue.list);
mutex_init(&dev->ts1.dmaqueue_lock);
mutex_init(&dev->ts1.dummy_dmaqueue_lock);
/* Transport port B Defaults / setup */
dev->ts2.dev = dev;
dev->ts2.nr = 1;
mutex_init(&dev->ts2.dvb.lock);
INIT_LIST_HEAD(&dev->ts2.dmaqueue.list);
INIT_LIST_HEAD(&dev->ts2.dummy_dmaqueue.list);
mutex_init(&dev->ts2.dmaqueue_lock);
mutex_init(&dev->ts2.dummy_dmaqueue_lock);
if (get_resources(dev) < 0) {
printk(KERN_ERR "CORE %s No more PCIe resources for "
"subsystem: %04x:%04x\n",
dev->name, dev->pci->subsystem_vendor,
dev->pci->subsystem_device);
saa7164_devcount--;
return -ENODEV;
}
/* PCI/e allocations */
dev->lmmio = ioremap(pci_resource_start(dev->pci, 0),
pci_resource_len(dev->pci, 0));
dev->lmmio2 = ioremap(pci_resource_start(dev->pci, 2),
pci_resource_len(dev->pci, 2));
printk(KERN_INFO "CORE %s: dev->lmmio = 0x%p\n", dev->name,
dev->lmmio);
printk(KERN_INFO "CORE %s: dev->lmmio2 = 0x%p\n", dev->name,
dev->lmmio2);
dev->bmmio = (u8 __iomem *)dev->lmmio;
dev->bmmio2 = (u8 __iomem *)dev->lmmio2;
printk(KERN_INFO "CORE %s: dev->bmmio = 0x%p\n", dev->name,
dev->bmmio);
printk(KERN_INFO "CORE %s: dev->bmmio2 = 0x%p\n", dev->name,
dev->bmmio2);
/* TODO: Magic defines used in the windows driver, define these */
dev->InterruptStatus = (u32 *)(dev->bmmio + 0x183000 + 0xf80);
dev->InterruptAck = (u32 *)(dev->bmmio + 0x183000 + 0xf90);
printk(KERN_INFO
"CORE %s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
dev->name, dev->pci->subsystem_vendor,
dev->pci->subsystem_device, saa7164_boards[dev->board].name,
dev->board, card[dev->nr] == dev->board ?
"insmod option" : "autodetected");
saa7164_pci_quirks(dev);
return 0;
}
static void saa7164_dev_unregister(struct saa7164_dev *dev)
{
dprintk(1, "%s()\n", __func__);
release_mem_region(pci_resource_start(dev->pci, 0),
pci_resource_len(dev->pci, 0));
release_mem_region(pci_resource_start(dev->pci, 2),
pci_resource_len(dev->pci, 2));
if (!atomic_dec_and_test(&dev->refcount))
return;
iounmap(dev->lmmio);
iounmap(dev->lmmio2);
return;
}
static int __devinit saa7164_initdev(struct pci_dev *pci_dev,
const struct pci_device_id *pci_id)
{
struct saa7164_dev *dev;
int err, i;
u32 version;
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (NULL == dev)
return -ENOMEM;
/* pci init */
dev->pci = pci_dev;
if (pci_enable_device(pci_dev)) {
err = -EIO;
goto fail_free;
}
if (saa7164_dev_setup(dev) < 0) {
err = -EINVAL;
goto fail_free;
}
/* print pci info */
pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat);
printk(KERN_INFO "%s/0: found at %s, rev: %d, irq: %d, "
"latency: %d, mmio: 0x%llx\n", dev->name,
pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
dev->pci_lat,
(unsigned long long)pci_resource_start(pci_dev, 0));
pci_set_master(pci_dev);
/* TODO */
if (!pci_dma_supported(pci_dev, 0xffffffff)) {
printk("%s/0: Oops: no 32bit PCI DMA ???\n", dev->name);
err = -EIO;
goto fail_irq;
}
err = request_irq(pci_dev->irq, saa7164_irq,
IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
if (err < 0) {
printk(KERN_ERR "%s: can't get IRQ %d\n", dev->name,
pci_dev->irq);
err = -EIO;
goto fail_irq;
}
pci_set_drvdata(pci_dev, dev);
saa7164_pci_quirks(dev);
/* Init the internal command list */
for (i = 0; i < SAA_CMD_MAX_MSG_UNITS; i++) {
dev->cmds[i].seqno = i;
dev->cmds[i].inuse = 0;
mutex_init(&dev->cmds[i].lock);
init_waitqueue_head(&dev->cmds[i].wait);
}
/* We need a deferred interrupt handler for cmd handling */
INIT_WORK(&dev->workcmd, saa7164_work_cmdhandler);
/* Only load the firmware if we know the board */
if (dev->board != SAA7164_BOARD_UNKNOWN) {
err = saa7164_downloadfirmware(dev);
if (err < 0) {
printk(KERN_ERR
"Failed to boot firmware, cannot continue\n");
goto fail_irq;
}
saa7164_get_descriptors(dev);
saa7164_dumpregs(dev, 0);
saa7164_getcurrentfirmwareversion(dev);
saa7164_getfirmwarestatus(dev);
err = saa7164_bus_setup(dev);
if (err < 0)
printk(KERN_ERR
"Failed to setup the bus, will continue\n");
saa7164_bus_dump(dev);
/* Ping the running firmware via the command bus and get the
* firmware version, this checks the bus is running OK.
*/
version = 0;
if (saa7164_api_get_fw_version(dev, &version) == SAA_OK)
dprintk(1, "Bus is operating correctly using "
"version %d.%d.%d.%d (0x%x)\n",
(version & 0x0000fc00) >> 10,
(version & 0x000003e0) >> 5,
(version & 0x0000001f),
(version & 0xffff0000) >> 16,
version);
else
printk(KERN_ERR
"Failed to communicate with the firmware\n");
/* Bring up the I2C buses */
saa7164_i2c_register(&dev->i2c_bus[0]);
saa7164_i2c_register(&dev->i2c_bus[1]);
saa7164_i2c_register(&dev->i2c_bus[2]);
saa7164_gpio_setup(dev);
saa7164_card_setup(dev);
/* Parse the dynamic device configuration, find various
* media endpoints (MPEG, WMV, PS, TS) and cache their
* configuration details into the driver, so we can
* reference them later during simething_register() func,
* interrupt handlers, deferred work handlers etc.
*/
saa7164_api_enum_subdevs(dev);
/* Try a few API commands - just for exercise purposes */
saa7164_api_test(dev);
/* Begin to create the video sub-systems and register funcs */
if (saa7164_boards[dev->board].porta == SAA7164_MPEG_DVB) {
if (saa7164_dvb_register(&dev->ts1) < 0) {
printk(KERN_ERR "%s() Failed to register "
"dvb adapters on porta\n",
__func__);
}
}
if (saa7164_boards[dev->board].portb == SAA7164_MPEG_DVB) {
if (saa7164_dvb_register(&dev->ts2) < 0) {
printk(KERN_ERR"%s() Failed to register "
"dvb adapters on portb\n",
__func__);
}
}
} /* != BOARD_UNKNOWN */
else
printk(KERN_ERR "%s() Unsupported board detected, "
"registering without firmware\n", __func__);
return 0;
fail_irq:
saa7164_dev_unregister(dev);
fail_free:
kfree(dev);
return err;
}
static void saa7164_shutdown(struct saa7164_dev *dev)
{
dprintk(1, "%s()\n", __func__);
}
static void __devexit saa7164_finidev(struct pci_dev *pci_dev)
{
struct saa7164_dev *dev = pci_get_drvdata(pci_dev);
saa7164_shutdown(dev);
if (saa7164_boards[dev->board].porta == SAA7164_MPEG_DVB)
saa7164_dvb_unregister(&dev->ts1);
if (saa7164_boards[dev->board].portb == SAA7164_MPEG_DVB)
saa7164_dvb_unregister(&dev->ts2);
saa7164_i2c_unregister(&dev->i2c_bus[0]);
saa7164_i2c_unregister(&dev->i2c_bus[1]);
saa7164_i2c_unregister(&dev->i2c_bus[2]);
pci_disable_device(pci_dev);
/* unregister stuff */
free_irq(pci_dev->irq, dev);
pci_set_drvdata(pci_dev, NULL);
mutex_lock(&devlist);
list_del(&dev->devlist);
mutex_unlock(&devlist);
saa7164_dev_unregister(dev);
kfree(dev);
}
static struct pci_device_id saa7164_pci_tbl[] = {
{
/* SAA7164 */
.vendor = 0x1131,
.device = 0x7164,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
}, {
/* --- end of list --- */
}
};
MODULE_DEVICE_TABLE(pci, saa7164_pci_tbl);
static struct pci_driver saa7164_pci_driver = {
.name = "saa7164",
.id_table = saa7164_pci_tbl,
.probe = saa7164_initdev,
.remove = __devexit_p(saa7164_finidev),
/* TODO */
.suspend = NULL,
.resume = NULL,
};
static int saa7164_init(void)
{
printk(KERN_INFO "saa7164 driver loaded\n");
return pci_register_driver(&saa7164_pci_driver);
}
static void saa7164_fini(void)
{
pci_unregister_driver(&saa7164_pci_driver);
}
module_init(saa7164_init);
module_exit(saa7164_fini);

578
drivers/media/video/saa7164/saa7164-dvb.c Normal file
View File

@ -0,0 +1,578 @@
/*
* Driver for the NXP SAA7164 PCIe bridge
*
* Copyright (c) 2009 Steven Toth <stoth@kernellabs.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "saa7164.h"
#include "tda10048.h"
#include "tda18271.h"
#include "s5h1411.h"
#define DRIVER_NAME "saa7164"
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
/* addr is in the card struct, get it from there */
static struct tda10048_config hauppauge_hvr2200_1_config = {
.demod_address = 0x10 >> 1,
.output_mode = TDA10048_SERIAL_OUTPUT,
.fwbulkwritelen = TDA10048_BULKWRITE_200,
.inversion = TDA10048_INVERSION_ON
};
static struct tda10048_config hauppauge_hvr2200_2_config = {
.demod_address = 0x12 >> 1,
.output_mode = TDA10048_SERIAL_OUTPUT,
.fwbulkwritelen = TDA10048_BULKWRITE_200,
.inversion = TDA10048_INVERSION_ON
};
static struct tda18271_std_map hauppauge_tda18271_std_map = {
.atsc_6 = { .if_freq = 3250, .agc_mode = 3, .std = 3,
.if_lvl = 6, .rfagc_top = 0x37 },
.qam_6 = { .if_freq = 4000, .agc_mode = 3, .std = 0,
.if_lvl = 6, .rfagc_top = 0x37 },
};
static struct tda18271_config hauppauge_hvr22x0_tuner_config = {
.std_map = &hauppauge_tda18271_std_map,
.gate = TDA18271_GATE_ANALOG,
};
static struct s5h1411_config hauppauge_s5h1411_config = {
.output_mode = S5H1411_SERIAL_OUTPUT,
.gpio = S5H1411_GPIO_ON,
.qam_if = S5H1411_IF_4000,
.vsb_if = S5H1411_IF_3250,
.inversion = S5H1411_INVERSION_ON,
.status_mode = S5H1411_DEMODLOCKING,
.mpeg_timing = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
};
static int saa7164_dvb_stop_tsport(struct saa7164_tsport *port)
{
struct saa7164_dev *dev = port->dev;
int ret;
ret = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
printk(KERN_ERR "%s() stop transition failed, ret = 0x%x\n",
__func__, ret);
ret = -EIO;
} else {
dprintk(DBGLVL_DVB, "%s() Stopped\n", __func__);
ret = 0;
}
return ret;
}
static int saa7164_dvb_acquire_tsport(struct saa7164_tsport *port)
{
struct saa7164_dev *dev = port->dev;
int ret;
ret = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
printk(KERN_ERR "%s() acquire transition failed, ret = 0x%x\n",
__func__, ret);
ret = -EIO;
} else {
dprintk(DBGLVL_DVB, "%s() Acquired\n", __func__);
ret = 0;
}
return ret;
}
static int saa7164_dvb_pause_tsport(struct saa7164_tsport *port)
{
struct saa7164_dev *dev = port->dev;
int ret;
ret = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
printk(KERN_ERR "%s() pause transition failed, ret = 0x%x\n",
__func__, ret);
ret = -EIO;
} else {
dprintk(DBGLVL_DVB, "%s() Paused\n", __func__);
ret = 0;
}
return ret;
}
/* Firmware is very windows centric, meaning you have to transition
* the part through AVStream / KS Windows stages, forwards or backwards.
* States are: stopped, acquired (h/w), paused, started.
*/
static int saa7164_dvb_stop_streaming(struct saa7164_tsport *port)
{
struct saa7164_dev *dev = port->dev;
int ret;
dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
ret = saa7164_dvb_pause_tsport(port);
ret = saa7164_dvb_acquire_tsport(port);
ret = saa7164_dvb_stop_tsport(port);
return ret;
}
static int saa7164_dvb_cfg_tsport(struct saa7164_tsport *port)
{
tmHWStreamParameters_t *params = &port->hw_streamingparams;
struct saa7164_dev *dev = port->dev;
struct saa7164_buffer *buf;
struct list_head *c, *n;
int i = 0;
dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
saa7164_writel(port->pitch, params->pitch);
saa7164_writel(port->bufsize, params->pitch * params->numberoflines);
dprintk(DBGLVL_DVB, " configured:\n");
dprintk(DBGLVL_DVB, " lmmio 0x%llx\n", (u64)dev->lmmio);
dprintk(DBGLVL_DVB, " bufcounter 0x%x = 0x%x\n", port->bufcounter,
saa7164_readl(port->bufcounter));
dprintk(DBGLVL_DVB, " pitch 0x%x = %d\n", port->pitch,
saa7164_readl(port->pitch));
dprintk(DBGLVL_DVB, " bufsize 0x%x = %d\n", port->bufsize,
saa7164_readl(port->bufsize));
dprintk(DBGLVL_DVB, " buffercount = %d\n", port->hwcfg.buffercount);
dprintk(DBGLVL_DVB, " bufoffset = 0x%x\n", port->bufoffset);
dprintk(DBGLVL_DVB, " bufptr32h = 0x%x\n", port->bufptr32h);
dprintk(DBGLVL_DVB, " bufptr32l = 0x%x\n", port->bufptr32l);
/* Poke the buffers and offsets into PCI space */
mutex_lock(&port->dmaqueue_lock);
list_for_each_safe(c, n, &port->dmaqueue.list) {
buf = list_entry(c, struct saa7164_buffer, list);
/* TODO: Review this in light of 32v64 assignments */
saa7164_writel(port->bufoffset + (sizeof(u32) * i), 0);
saa7164_writel(port->bufptr32h + ((sizeof(u32) * 2) * i),
buf->pt_dma);
saa7164_writel(port->bufptr32l + ((sizeof(u32) * 2) * i), 0);
dprintk(DBGLVL_DVB,
" buf[%d] offset 0x%lx (0x%x) "
"buf 0x%lx/%lx (0x%x/%x)\n",
i,
port->bufoffset + (i * sizeof(u32)),
saa7164_readl(port->bufoffset + (sizeof(u32) * i)),
port->bufptr32h + ((sizeof(u32) * 2) * i),
port->bufptr32l + ((sizeof(u32) * 2) * i),
saa7164_readl(port->bufptr32h + ((sizeof(u32) * i)
* 2)),
saa7164_readl(port->bufptr32l + ((sizeof(u32) * i)
* 2)));
if (i++ > port->hwcfg.buffercount)
BUG();
}
mutex_unlock(&port->dmaqueue_lock);
return 0;
}
static int saa7164_dvb_start_tsport(struct saa7164_tsport *port)
{
struct saa7164_dev *dev = port->dev;
int ret = 0, result;
dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
saa7164_dvb_cfg_tsport(port);
/* Acquire the hardware */
result = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
printk(KERN_ERR "%s() acquire transition failed, res = 0x%x\n",
__func__, result);
/* Stop the hardware, regardless */
result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
printk(KERN_ERR "%s() acquire/forced stop transition "
"failed, res = 0x%x\n", __func__, result);
}
ret = -EIO;
goto out;
} else
dprintk(DBGLVL_DVB, "%s() Acquired\n", __func__);
/* Pause the hardware */
result = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
printk(KERN_ERR "%s() pause transition failed, res = 0x%x\n",
__func__, result);
/* Stop the hardware, regardless */
result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
printk(KERN_ERR "%s() pause/forced stop transition "
"failed, res = 0x%x\n", __func__, result);
}
ret = -EIO;
goto out;
} else
dprintk(DBGLVL_DVB, "%s() Paused\n", __func__);
/* Start the hardware */
result = saa7164_api_transition_port(port, SAA_DMASTATE_RUN);
if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
printk(KERN_ERR "%s() run transition failed, result = 0x%x\n",
__func__, result);
/* Stop the hardware, regardless */
result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
printk(KERN_ERR "%s() run/forced stop transition "
"failed, res = 0x%x\n", __func__, result);
}
ret = -EIO;
} else
dprintk(DBGLVL_DVB, "%s() Running\n", __func__);
out:
return ret;
}
static int saa7164_dvb_start_feed(struct dvb_demux_feed *feed)
{
struct dvb_demux *demux = feed->demux;
struct saa7164_tsport *port = (struct saa7164_tsport *) demux->priv;
struct saa7164_dvb *dvb = &port->dvb;
struct saa7164_dev *dev = port->dev;
int ret = 0;
dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
if (!demux->dmx.frontend)
return -EINVAL;
if (dvb) {
mutex_lock(&dvb->lock);
if (dvb->feeding++ == 0) {
/* Start transport */
ret = saa7164_dvb_start_tsport(port);
}
mutex_unlock(&dvb->lock);
dprintk(DBGLVL_DVB, "%s(port=%d) now feeding = %d\n",
__func__, port->nr, dvb->feeding);
}
return ret;
}
static int saa7164_dvb_stop_feed(struct dvb_demux_feed *feed)
{
struct dvb_demux *demux = feed->demux;
struct saa7164_tsport *port = (struct saa7164_tsport *) demux->priv;
struct saa7164_dvb *dvb = &port->dvb;
struct saa7164_dev *dev = port->dev;
int ret = 0;
dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
if (dvb) {
mutex_lock(&dvb->lock);
if (--dvb->feeding == 0) {
/* Stop transport */
ret = saa7164_dvb_stop_streaming(port);
}
mutex_unlock(&dvb->lock);
dprintk(DBGLVL_DVB, "%s(port=%d) now feeding = %d\n",
__func__, port->nr, dvb->feeding);
}
return ret;
}
static int dvb_register(struct saa7164_tsport *port)
{
struct saa7164_dvb *dvb = &port->dvb;
struct saa7164_dev *dev = port->dev;
struct saa7164_buffer *buf;
int result, i;
dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
/* Sanity check that the PCI configuration space is active */
if (port->hwcfg.BARLocation == 0) {
result = -ENOMEM;
printk(KERN_ERR "%s: dvb_register_adapter failed "
"(errno = %d), NO PCI configuration\n",
DRIVER_NAME, result);
goto fail_adapter;
}
/* Init and establish defaults */
port->hw_streamingparams.bitspersample = 8;
port->hw_streamingparams.samplesperline = 188;
port->hw_streamingparams.numberoflines =
(SAA7164_TS_NUMBER_OF_LINES * 188) / 188;
port->hw_streamingparams.pitch = 188;
port->hw_streamingparams.linethreshold = 0;
port->hw_streamingparams.pagetablelistvirt = 0;
port->hw_streamingparams.pagetablelistphys = 0;
port->hw_streamingparams.numpagetables = 2 +
((SAA7164_TS_NUMBER_OF_LINES * 188) / PAGE_SIZE);
port->hw_streamingparams.numpagetableentries = port->hwcfg.buffercount;
/* Allocate the PCI resources */
for (i = 0; i < port->hwcfg.buffercount; i++) {
buf = saa7164_buffer_alloc(port,
port->hw_streamingparams.numberoflines *
port->hw_streamingparams.pitch);
if (!buf) {
result = -ENOMEM;
printk(KERN_ERR "%s: dvb_register_adapter failed "
"(errno = %d), unable to allocate buffers\n",
DRIVER_NAME, result);
goto fail_adapter;
}
buf->nr = i;
mutex_lock(&port->dmaqueue_lock);
list_add_tail(&buf->list, &port->dmaqueue.list);
mutex_unlock(&port->dmaqueue_lock);
}
/* register adapter */
result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE,
&dev->pci->dev, adapter_nr);
if (result < 0) {
printk(KERN_ERR "%s: dvb_register_adapter failed "
"(errno = %d)\n", DRIVER_NAME, result);
goto fail_adapter;
}
dvb->adapter.priv = port;
/* register frontend */
result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
if (result < 0) {
printk(KERN_ERR "%s: dvb_register_frontend failed "
"(errno = %d)\n", DRIVER_NAME, result);
goto fail_frontend;
}
/* register demux stuff */
dvb->demux.dmx.capabilities =
DMX_TS_FILTERING | DMX_SECTION_FILTERING |
DMX_MEMORY_BASED_FILTERING;
dvb->demux.priv = port;
dvb->demux.filternum = 256;
dvb->demux.feednum = 256;
dvb->demux.start_feed = saa7164_dvb_start_feed;
dvb->demux.stop_feed = saa7164_dvb_stop_feed;
result = dvb_dmx_init(&dvb->demux);
if (result < 0) {
printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n",
DRIVER_NAME, result);
goto fail_dmx;
}
dvb->dmxdev.filternum = 256;
dvb->dmxdev.demux = &dvb->demux.dmx;
dvb->dmxdev.capabilities = 0;
result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
if (result < 0) {
printk(KERN_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n",
DRIVER_NAME, result);
goto fail_dmxdev;
}
dvb->fe_hw.source = DMX_FRONTEND_0;
result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
if (result < 0) {
printk(KERN_ERR "%s: add_frontend failed "
"(DMX_FRONTEND_0, errno = %d)\n", DRIVER_NAME, result);
goto fail_fe_hw;
}
dvb->fe_mem.source = DMX_MEMORY_FE;
result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
if (result < 0) {
printk(KERN_ERR "%s: add_frontend failed "
"(DMX_MEMORY_FE, errno = %d)\n", DRIVER_NAME, result);
goto fail_fe_mem;
}
result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
if (result < 0) {
printk(KERN_ERR "%s: connect_frontend failed (errno = %d)\n",
DRIVER_NAME, result);
goto fail_fe_conn;
}
/* register network adapter */
dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
return 0;
fail_fe_conn:
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
fail_fe_mem:
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
fail_fe_hw:
dvb_dmxdev_release(&dvb->dmxdev);
fail_dmxdev:
dvb_dmx_release(&dvb->demux);
fail_dmx:
dvb_unregister_frontend(dvb->frontend);
fail_frontend:
dvb_frontend_detach(dvb->frontend);
dvb_unregister_adapter(&dvb->adapter);
fail_adapter:
return result;
}
int saa7164_dvb_unregister(struct saa7164_tsport *port)
{
struct saa7164_dvb *dvb = &port->dvb;
struct saa7164_dev *dev = port->dev;
struct saa7164_buffer *b;
struct list_head *c, *n;
dprintk(DBGLVL_DVB, "%s()\n", __func__);
/* Remove any allocated buffers */
mutex_lock(&port->dmaqueue_lock);
list_for_each_safe(c, n, &port->dmaqueue.list) {
b = list_entry(c, struct saa7164_buffer, list);
list_del(c);
saa7164_buffer_dealloc(port, b);
}
mutex_unlock(&port->dmaqueue_lock);
if (dvb->frontend == NULL)
return 0;
dvb_net_release(&dvb->net);
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
dvb_dmxdev_release(&dvb->dmxdev);
dvb_dmx_release(&dvb->demux);
dvb_unregister_frontend(dvb->frontend);
dvb_frontend_detach(dvb->frontend);
dvb_unregister_adapter(&dvb->adapter);
return 0;
}
/* All the DVB attach calls go here, this function get's modified
* for each new card.
*/
int saa7164_dvb_register(struct saa7164_tsport *port)
{
struct saa7164_dev *dev = port->dev;
struct saa7164_dvb *dvb = &port->dvb;
struct saa7164_i2c *i2c_bus = NULL;
int ret;
dprintk(DBGLVL_DVB, "%s()\n", __func__);
/* init frontend */
switch (dev->board) {
case SAA7164_BOARD_HAUPPAUGE_HVR2200:
case SAA7164_BOARD_HAUPPAUGE_HVR2200_2:
case SAA7164_BOARD_HAUPPAUGE_HVR2200_3:
switch (port->nr) {
case 0:
i2c_bus = &dev->i2c_bus[1];
port->dvb.frontend = dvb_attach(tda10048_attach,
&hauppauge_hvr2200_1_config,
&i2c_bus->i2c_adap);
if (port->dvb.frontend != NULL) {
dvb_attach(tda18271_attach, port->dvb.frontend,
0xc0 >> 1, &i2c_bus->i2c_adap,
&hauppauge_hvr22x0_tuner_config);
}
break;
case 1:
i2c_bus = &dev->i2c_bus[2];
port->dvb.frontend = dvb_attach(tda10048_attach,
&hauppauge_hvr2200_2_config,
&i2c_bus->i2c_adap);
if (port->dvb.frontend != NULL) {
dvb_attach(tda18271_attach, port->dvb.frontend,
0xc0 >> 1, &i2c_bus->i2c_adap,
&hauppauge_hvr22x0_tuner_config);
}
break;
}
break;
case SAA7164_BOARD_HAUPPAUGE_HVR2250:
case SAA7164_BOARD_HAUPPAUGE_HVR2250_2:
i2c_bus = &dev->i2c_bus[port->nr + 1];
port->dvb.frontend = dvb_attach(s5h1411_attach,
&hauppauge_s5h1411_config,
&i2c_bus->i2c_adap);
if (port->dvb.frontend != NULL) {
/* TODO: addr is in the card struct */
dvb_attach(tda18271_attach, port->dvb.frontend,
0xc0 >> 1, &i2c_bus->i2c_adap,
&hauppauge_hvr22x0_tuner_config);
}
break;
default:
printk(KERN_ERR "%s: The frontend isn't supported\n",
dev->name);
break;
}
if (NULL == dvb->frontend) {
printk(KERN_ERR "%s() Frontend initialization failed\n",
__func__);
return -1;
}
/* Put the analog decoder in standby to keep it quiet */
/* register everything */
ret = dvb_register(port);
if (ret < 0) {
if (dvb->frontend->ops.release)
dvb->frontend->ops.release(dvb->frontend);
return ret;
}
return 0;
}

615
drivers/media/video/saa7164/saa7164-fw.c Normal file
View File

@ -0,0 +1,615 @@
/*
* Driver for the NXP SAA7164 PCIe bridge
*
* Copyright (c) 2009 Steven Toth <stoth@kernellabs.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/firmware.h>
#include "saa7164.h"
#define SAA7164_REV2_FIRMWARE "v4l-saa7164-1.0.2.fw"
#define SAA7164_REV2_FIRMWARE_SIZE 3978608
#define SAA7164_REV3_FIRMWARE "v4l-saa7164-1.0.3.fw"
#define SAA7164_REV3_FIRMWARE_SIZE 3978608
struct fw_header {
u32 firmwaresize;
u32 bslsize;
u32 reserved;
u32 version;
};
int saa7164_dl_wait_ack(struct saa7164_dev *dev, u32 reg)
{
u32 timeout = SAA_DEVICE_TIMEOUT;
while ((saa7164_readl(reg) & 0x01) == 0) {
timeout -= 5;
if (timeout == 0) {
printk(KERN_ERR "%s() timeout (no d/l ack)\n",
__func__);
return -EBUSY;
}
/* TODO: Review this for efficiency, f/w load is slow */
msleep(1);
}
return 0;
}
int saa7164_dl_wait_clr(struct saa7164_dev *dev, u32 reg)
{
u32 timeout = SAA_DEVICE_TIMEOUT;
while (saa7164_readl(reg) & 0x01) {
timeout -= 5;
if (timeout == 0) {
printk(KERN_ERR "%s() timeout (no d/l clr)\n",
__func__);
return -EBUSY;
}
/* TODO: Review this for efficiency, f/w load is slow */
msleep(1);
}
return 0;
}
/* TODO: move dlflags into dev-> and change to write/readl/b */
/* TODO: Excessive levels of debug */
int saa7164_downloadimage(struct saa7164_dev *dev, u8 *src, u32 srcsize,
u32 dlflags, u8 *dst, u32 dstsize)
{
u32 reg, timeout, offset;
u8 *srcbuf = NULL;
int ret;
u32 dlflag = dlflags;
u32 dlflag_ack = dlflag + 4;
u32 drflag = dlflag_ack + 4;
u32 drflag_ack = drflag + 4;
u32 bleflag = drflag_ack + 4;
dprintk(DBGLVL_FW,
"%s(image=%p, size=%d, flags=0x%x, dst=%p, dstsize=0x%x)\n",
__func__, src, srcsize, dlflags, dst, dstsize);
if ((src == 0) || (dst == 0)) {
ret = -EIO;
goto out;
}
srcbuf = kzalloc(4 * 1048576, GFP_KERNEL);
if (NULL == srcbuf) {
ret = -ENOMEM;
goto out;
}
if (srcsize > (4*1048576)) {
ret = -ENOMEM;
goto out;
}
memcpy(srcbuf, src, srcsize);
dprintk(DBGLVL_FW, "%s() dlflag = 0x%x\n", __func__, dlflag);
dprintk(DBGLVL_FW, "%s() dlflag_ack = 0x%x\n", __func__, dlflag_ack);
dprintk(DBGLVL_FW, "%s() drflag = 0x%x\n", __func__, drflag);
dprintk(DBGLVL_FW, "%s() drflag_ack = 0x%x\n", __func__, drflag_ack);
dprintk(DBGLVL_FW, "%s() bleflag = 0x%x\n", __func__, bleflag);
reg = saa7164_readl(dlflag);
dprintk(DBGLVL_FW, "%s() dlflag (0x%x)= 0x%x\n", __func__, dlflag, reg);
if (reg == 1)
dprintk(DBGLVL_FW,
"%s() Download flag already set, please reboot\n",
__func__);
/* Indicate download start */
saa7164_writel(dlflag, 1);
ret = saa7164_dl_wait_ack(dev, dlflag_ack);
if (ret < 0)
goto out;
/* Ack download start, then wait for wait */
saa7164_writel(dlflag, 0);
ret = saa7164_dl_wait_clr(dev, dlflag_ack);
if (ret < 0)
goto out;
/* Deal with the raw firmware, in the appropriate chunk size */
for (offset = 0; srcsize > dstsize;
srcsize -= dstsize, offset += dstsize) {
dprintk(DBGLVL_FW, "%s() memcpy %d\n", __func__, dstsize);
memcpy(dst, srcbuf + offset, dstsize);
/* Flag the data as ready */
saa7164_writel(drflag, 1);
ret = saa7164_dl_wait_ack(dev, drflag_ack);
if (ret < 0)
goto out;
/* Wait for indication data was received */
saa7164_writel(drflag, 0);
ret = saa7164_dl_wait_clr(dev, drflag_ack);
if (ret < 0)
goto out;
}
dprintk(DBGLVL_FW, "%s() memcpy(l) %d\n", __func__, dstsize);
/* Write last block to the device */
memcpy(dst, srcbuf+offset, srcsize);
/* Flag the data as ready */
saa7164_writel(drflag, 1);
ret = saa7164_dl_wait_ack(dev, drflag_ack);
if (ret < 0)
goto out;
saa7164_writel(drflag, 0);
timeout = 0;
while (saa7164_readl(bleflag) != SAA_DEVICE_IMAGE_BOOTING) {
if (saa7164_readl(bleflag) & SAA_DEVICE_IMAGE_CORRUPT) {
printk(KERN_ERR "%s() image corrupt\n", __func__);
ret = -EBUSY;
goto out;
}
if (saa7164_readl(bleflag) & SAA_DEVICE_MEMORY_CORRUPT) {
printk(KERN_ERR "%s() device memory corrupt\n",
__func__);
ret = -EBUSY;
goto out;
}
msleep(10);
if (timeout++ > 60)
break;
}
printk(KERN_INFO "%s() Image downloaded, booting...\n", __func__);
ret = saa7164_dl_wait_clr(dev, drflag_ack);
if (ret < 0)
goto out;
printk(KERN_INFO "%s() Image booted successfully.\n", __func__);
ret = 0;
out:
kfree(srcbuf);
return ret;
}
/* TODO: Excessive debug */
/* Load the firmware. Optionally it can be in ROM or newer versions
* can be on disk, saving the expense of the ROM hardware. */
int saa7164_downloadfirmware(struct saa7164_dev *dev)
{
/* u32 second_timeout = 60 * SAA_DEVICE_TIMEOUT; */
u32 tmp, filesize, version, err_flags, first_timeout, fwlength;
u32 second_timeout, updatebootloader = 1, bootloadersize = 0;
const struct firmware *fw = NULL;
struct fw_header *hdr, *boothdr = NULL, *fwhdr;
u32 bootloaderversion = 0, fwloadersize;
u8 *bootloaderoffset = NULL, *fwloaderoffset;
char *fwname;
int ret;
dprintk(DBGLVL_FW, "%s()\n", __func__);
if (saa7164_boards[dev->board].chiprev == SAA7164_CHIP_REV2) {
fwname = SAA7164_REV2_FIRMWARE;
fwlength = SAA7164_REV2_FIRMWARE_SIZE;
} else {
fwname = SAA7164_REV3_FIRMWARE;
fwlength = SAA7164_REV3_FIRMWARE_SIZE;
}
version = saa7164_getcurrentfirmwareversion(dev);
if (version == 0x00) {
second_timeout = 100;
first_timeout = 100;
err_flags = saa7164_readl(SAA_BOOTLOADERERROR_FLAGS);
dprintk(DBGLVL_FW, "%s() err_flags = %x\n",
__func__, err_flags);
while (err_flags != SAA_DEVICE_IMAGE_BOOTING) {
dprintk(DBGLVL_FW, "%s() err_flags = %x\n",
__func__, err_flags);
msleep(10);
if (err_flags & SAA_DEVICE_IMAGE_CORRUPT) {
printk(KERN_ERR "%s() firmware corrupt\n",
__func__);
break;
}
if (err_flags & SAA_DEVICE_MEMORY_CORRUPT) {
printk(KERN_ERR "%s() device memory corrupt\n",
__func__);
break;
}
if (err_flags & SAA_DEVICE_NO_IMAGE) {
printk(KERN_ERR "%s() no first image\n",
__func__);
break;
}
if (err_flags & SAA_DEVICE_IMAGE_SEARCHING) {
first_timeout -= 10;
if (first_timeout == 0) {
printk(KERN_ERR
"%s() no first image\n",
__func__);
break;
}
} else if (err_flags & SAA_DEVICE_IMAGE_LOADING) {
second_timeout -= 10;
if (second_timeout == 0) {
printk(KERN_ERR
"%s() FW load time exceeded\n",
__func__);
break;
}
} else {
second_timeout -= 10;
if (second_timeout == 0) {
printk(KERN_ERR
"%s() Unknown bootloader flags 0x%x\n",
__func__, err_flags);
break;
}
}
err_flags = saa7164_readl(SAA_BOOTLOADERERROR_FLAGS);
} /* While != Booting */
if (err_flags == SAA_DEVICE_IMAGE_BOOTING) {
dprintk(DBGLVL_FW, "%s() Loader 1 has loaded.\n",
__func__);
first_timeout = SAA_DEVICE_TIMEOUT;
second_timeout = 60 * SAA_DEVICE_TIMEOUT;
second_timeout = 100;
err_flags = saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS);
dprintk(DBGLVL_FW, "%s() err_flags2 = %x\n",
__func__, err_flags);
while (err_flags != SAA_DEVICE_IMAGE_BOOTING) {
dprintk(DBGLVL_FW, "%s() err_flags2 = %x\n",
__func__, err_flags);
msleep(10);
if (err_flags & SAA_DEVICE_IMAGE_CORRUPT) {
printk(KERN_ERR
"%s() firmware corrupt\n",
__func__);
break;
}
if (err_flags & SAA_DEVICE_MEMORY_CORRUPT) {
printk(KERN_ERR
"%s() device memory corrupt\n",
__func__);
break;
}
if (err_flags & SAA_DEVICE_NO_IMAGE) {
printk(KERN_ERR "%s() no first image\n",
__func__);
break;
}
if (err_flags & SAA_DEVICE_IMAGE_SEARCHING) {
first_timeout -= 10;
if (first_timeout == 0) {
printk(KERN_ERR
"%s() no second image\n",
__func__);
break;
}
} else if (err_flags &
SAA_DEVICE_IMAGE_LOADING) {
second_timeout -= 10;
if (second_timeout == 0) {
printk(KERN_ERR
"%s() FW load time exceeded\n",
__func__);
break;
}
} else {
second_timeout -= 10;
if (second_timeout == 0) {
printk(KERN_ERR
"%s() Unknown bootloader flags 0x%x\n",
__func__, err_flags);
break;
}
}
err_flags =
saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS);
} /* err_flags != SAA_DEVICE_IMAGE_BOOTING */
dprintk(DBGLVL_FW, "%s() Loader flags 1:0x%x 2:0x%x.\n",
__func__,
saa7164_readl(SAA_BOOTLOADERERROR_FLAGS),
saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS));
} /* err_flags == SAA_DEVICE_IMAGE_BOOTING */
/* It's possible for both firmwares to have booted,
* but that doesn't mean they've finished booting yet.
*/
if ((saa7164_readl(SAA_BOOTLOADERERROR_FLAGS) ==
SAA_DEVICE_IMAGE_BOOTING) &&
(saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS) ==
SAA_DEVICE_IMAGE_BOOTING)) {
dprintk(DBGLVL_FW, "%s() Loader 2 has loaded.\n",
__func__);
first_timeout = SAA_DEVICE_TIMEOUT;
while (first_timeout) {
msleep(10);
version =
saa7164_getcurrentfirmwareversion(dev);
if (version) {
dprintk(DBGLVL_FW,
"%s() All f/w loaded successfully\n",
__func__);
break;
} else {
first_timeout -= 10;
if (first_timeout == 0) {
printk(KERN_ERR
"%s() FW did not boot\n",
__func__);
break;
}
}
}
}
version = saa7164_getcurrentfirmwareversion(dev);
} /* version == 0 */
/* Has the firmware really booted? */
if ((saa7164_readl(SAA_BOOTLOADERERROR_FLAGS) ==
SAA_DEVICE_IMAGE_BOOTING) &&
(saa7164_readl(SAA_SECONDSTAGEERROR_FLAGS) ==
SAA_DEVICE_IMAGE_BOOTING) && (version == 0)) {
printk(KERN_ERR
"%s() The firmware hung, probably bad firmware\n",
__func__);
/* Tell the second stage loader we have a deadlock */
saa7164_writel(SAA_DEVICE_DEADLOCK_DETECTED_OFFSET,
SAA_DEVICE_DEADLOCK_DETECTED);
saa7164_getfirmwarestatus(dev);
return -ENOMEM;
}
dprintk(DBGLVL_FW, "Device has Firmware Version %d.%d.%d.%d\n",
(version & 0x0000fc00) >> 10,
(version & 0x000003e0) >> 5,
(version & 0x0000001f),
(version & 0xffff0000) >> 16);
/* Load the firmwware from the disk if required */
if (version == 0) {
printk(KERN_INFO "%s() Waiting for firmware upload (%s)\n",
__func__, fwname);
ret = request_firmware(&fw, fwname, &dev->pci->dev);
if (ret) {
printk(KERN_ERR "%s() Upload failed. "
"(file not found?)\n", __func__);
return -ENOMEM;
}
printk(KERN_INFO "%s() firmware read %Zu bytes.\n",
__func__, fw->size);
if (fw->size != fwlength) {
printk(KERN_ERR "xc5000: firmware incorrect size\n");
ret = -ENOMEM;
goto out;
}
printk(KERN_INFO "%s() firmware loaded.\n", __func__);
hdr = (struct fw_header *)fw->data;
printk(KERN_INFO "Firmware file header part 1:\n");
printk(KERN_INFO " .FirmwareSize = 0x%x\n", hdr->firmwaresize);
printk(KERN_INFO " .BSLSize = 0x%x\n", hdr->bslsize);
printk(KERN_INFO " .Reserved = 0x%x\n", hdr->reserved);
printk(KERN_INFO " .Version = 0x%x\n", hdr->version);
/* Retreive bootloader if reqd */
if ((hdr->firmwaresize == 0) && (hdr->bslsize == 0))
/* Second bootloader in the firmware file */
filesize = hdr->reserved * 16;
else
filesize = (hdr->firmwaresize + hdr->bslsize) *
16 + sizeof(struct fw_header);
printk(KERN_INFO "%s() SecBootLoader.FileSize = %d\n",
__func__, filesize);
/* Get bootloader (if reqd) and firmware header */
if ((hdr->firmwaresize == 0) && (hdr->bslsize == 0)) {
/* Second boot loader is required */
/* Get the loader header */
boothdr = (struct fw_header *)(fw->data +
sizeof(struct fw_header));
bootloaderversion =
saa7164_readl(SAA_DEVICE_2ND_VERSION);
dprintk(DBGLVL_FW, "Onboard BootLoader:\n");
dprintk(DBGLVL_FW, "->Flag 0x%x\n",
saa7164_readl(SAA_BOOTLOADERERROR_FLAGS));
dprintk(DBGLVL_FW, "->Ack 0x%x\n",
saa7164_readl(SAA_DATAREADY_FLAG_ACK));
dprintk(DBGLVL_FW, "->FW Version 0x%x\n", version);
dprintk(DBGLVL_FW, "->Loader Version 0x%x\n",
bootloaderversion);
if ((saa7164_readl(SAA_BOOTLOADERERROR_FLAGS) ==
0x03) && (saa7164_readl(SAA_DATAREADY_FLAG_ACK)
== 0x00) && (version == 0x00)) {
dprintk(DBGLVL_FW, "BootLoader version in "
"rom %d.%d.%d.%d\n",
(bootloaderversion & 0x0000fc00) >> 10,
(bootloaderversion & 0x000003e0) >> 5,
(bootloaderversion & 0x0000001f),
(bootloaderversion & 0xffff0000) >> 16
);
dprintk(DBGLVL_FW, "BootLoader version "
"in file %d.%d.%d.%d\n",
(boothdr->version & 0x0000fc00) >> 10,
(boothdr->version & 0x000003e0) >> 5,
(boothdr->version & 0x0000001f),
(boothdr->version & 0xffff0000) >> 16
);
if (bootloaderversion == boothdr->version)
updatebootloader = 0;
}
/* Calculate offset to firmware header */
tmp = (boothdr->firmwaresize + boothdr->bslsize) * 16 +
(sizeof(struct fw_header) +
sizeof(struct fw_header));
fwhdr = (struct fw_header *)(fw->data+tmp);
} else {
/* No second boot loader */
fwhdr = hdr;
}
dprintk(DBGLVL_FW, "Firmware version in file %d.%d.%d.%d\n",
(fwhdr->version & 0x0000fc00) >> 10,
(fwhdr->version & 0x000003e0) >> 5,
(fwhdr->version & 0x0000001f),
(fwhdr->version & 0xffff0000) >> 16
);
if (version == fwhdr->version) {
/* No download, firmware already on board */
ret = 0;
goto out;
}
if ((hdr->firmwaresize == 0) && (hdr->bslsize == 0)) {
if (updatebootloader) {
/* Get ready to upload the bootloader */
bootloadersize = (boothdr->firmwaresize +
boothdr->bslsize) * 16 +
sizeof(struct fw_header);
bootloaderoffset = (u8 *)(fw->data +
sizeof(struct fw_header));
dprintk(DBGLVL_FW, "bootloader d/l starts.\n");
printk(KERN_INFO "%s() FirmwareSize = 0x%x\n",
__func__, boothdr->firmwaresize);
printk(KERN_INFO "%s() BSLSize = 0x%x\n",
__func__, boothdr->bslsize);
printk(KERN_INFO "%s() Reserved = 0x%x\n",
__func__, boothdr->reserved);
printk(KERN_INFO "%s() Version = 0x%x\n",
__func__, boothdr->version);
ret = saa7164_downloadimage(
dev,
bootloaderoffset,
bootloadersize,
SAA_DOWNLOAD_FLAGS,
dev->bmmio + SAA_DEVICE_DOWNLOAD_OFFSET,
SAA_DEVICE_BUFFERBLOCKSIZE);
if (ret < 0) {
printk(KERN_ERR
"bootloader d/l has failed\n");
goto out;
}
dprintk(DBGLVL_FW,
"bootloader download complete.\n");
}
printk(KERN_ERR "starting firmware download(2)\n");
bootloadersize = (boothdr->firmwaresize +
boothdr->bslsize) * 16 +
sizeof(struct fw_header);
bootloaderoffset =
(u8 *)(fw->data + sizeof(struct fw_header));
fwloaderoffset = bootloaderoffset + bootloadersize;
/* TODO: fix this bounds overrun here with old f/ws */
fwloadersize = (fwhdr->firmwaresize + fwhdr->bslsize) *
16 + sizeof(struct fw_header);
ret = saa7164_downloadimage(
dev,
fwloaderoffset,
fwloadersize,
SAA_DEVICE_2ND_DOWNLOADFLAG_OFFSET,
dev->bmmio + SAA_DEVICE_2ND_DOWNLOAD_OFFSET,
SAA_DEVICE_2ND_BUFFERBLOCKSIZE);
if (ret < 0) {
printk(KERN_ERR "firmware download failed\n");
goto out;
}
printk(KERN_ERR "firmware download complete.\n");
} else {
/* No bootloader update reqd, download firmware only */
printk(KERN_ERR "starting firmware download(3)\n");
ret = saa7164_downloadimage(
dev,
(u8 *)fw->data,
fw->size,
SAA_DOWNLOAD_FLAGS,
dev->bmmio + SAA_DEVICE_DOWNLOAD_OFFSET,
SAA_DEVICE_BUFFERBLOCKSIZE);
if (ret < 0) {
printk(KERN_ERR "firmware download failed\n");
goto out;
}
printk(KERN_ERR "firmware download complete.\n");
}
}
ret = 0;
out:
if (fw)
release_firmware(fw);
return ret;
}

170
drivers/media/video/saa7164/saa7164-i2c.c Normal file
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/*
* Driver for the NXP SAA7164 PCIe bridge
*
* Copyright (c) 2009 Steven Toth <stoth@kernellabs.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <asm/io.h>
#include "saa7164.h"
static int i2c_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int num)
{
struct saa7164_i2c *bus = i2c_adap->algo_data;
struct saa7164_dev *dev = bus->dev;
int i, retval = 0;
dprintk(DBGLVL_I2C, "%s(num = %d)\n", __func__, num);
for (i = 0 ; i < num; i++) {
dprintk(DBGLVL_I2C, "%s(num = %d) addr = 0x%02x len = 0x%x\n",
__func__, num, msgs[i].addr, msgs[i].len);
if (msgs[i].flags & I2C_M_RD) {
/* Unsupported - Yet*/
printk(KERN_ERR "%s() Unsupported - Yet\n", __func__);
continue;
} else if (i + 1 < num && (msgs[i + 1].flags & I2C_M_RD) &&
msgs[i].addr == msgs[i + 1].addr) {
/* write then read from same address */
retval = saa7164_api_i2c_read(bus, msgs[i].addr,
msgs[i].len, msgs[i].buf,
msgs[i+1].len, msgs[i+1].buf
);
i++;
if (retval < 0)
goto err;
} else {
/* write */
retval = saa7164_api_i2c_write(bus, msgs[i].addr,
msgs[i].len, msgs[i].buf);
}
if (retval < 0)
goto err;
}
return num;
err:
return retval;
}
static int attach_inform(struct i2c_client *client)
{
struct saa7164_i2c *bus = i2c_get_adapdata(client->adapter);
struct saa7164_dev *dev = bus->dev;
dprintk(DBGLVL_I2C, "%s i2c attach [addr=0x%x,client=%s]\n",
client->driver->driver.name, client->addr, client->name);
if (!client->driver->command)
return 0;
return 0;
}
static int detach_inform(struct i2c_client *client)
{
struct saa7164_dev *dev = i2c_get_adapdata(client->adapter);
dprintk(DBGLVL_I2C, "i2c detach [client=%s]\n", client->name);
return 0;
}
void saa7164_call_i2c_clients(struct saa7164_i2c *bus, unsigned int cmd,
void *arg)
{
if (bus->i2c_rc != 0)
return;
i2c_clients_command(&bus->i2c_adap, cmd, arg);
}
static u32 saa7164_functionality(struct i2c_adapter *adap)
{
return I2C_FUNC_I2C;
}
static struct i2c_algorithm saa7164_i2c_algo_template = {
.master_xfer = i2c_xfer,
.functionality = saa7164_functionality,
};
/* ----------------------------------------------------------------------- */
static struct i2c_adapter saa7164_i2c_adap_template = {
.name = "saa7164",
.owner = THIS_MODULE,
.id = I2C_HW_B_SAA7164,
.algo = &saa7164_i2c_algo_template,
.client_register = attach_inform,
.client_unregister = detach_inform,
};
static struct i2c_client saa7164_i2c_client_template = {
.name = "saa7164 internal",
};
int saa7164_i2c_register(struct saa7164_i2c *bus)
{
struct saa7164_dev *dev = bus->dev;
dprintk(DBGLVL_I2C, "%s(bus = %d)\n", __func__, bus->nr);
memcpy(&bus->i2c_adap, &saa7164_i2c_adap_template,
sizeof(bus->i2c_adap));
memcpy(&bus->i2c_algo, &saa7164_i2c_algo_template,
sizeof(bus->i2c_algo));
memcpy(&bus->i2c_client, &saa7164_i2c_client_template,
sizeof(bus->i2c_client));
bus->i2c_adap.dev.parent = &dev->pci->dev;
strlcpy(bus->i2c_adap.name, bus->dev->name,
sizeof(bus->i2c_adap.name));
bus->i2c_algo.data = bus;
bus->i2c_adap.algo_data = bus;
i2c_set_adapdata(&bus->i2c_adap, bus);
i2c_add_adapter(&bus->i2c_adap);
bus->i2c_client.adapter = &bus->i2c_adap;
if (0 == bus->i2c_rc) {
printk(KERN_ERR "%s: i2c bus %d registered\n",
dev->name, bus->nr);
} else
printk(KERN_ERR "%s: i2c bus %d register FAILED\n",
dev->name, bus->nr);
return bus->i2c_rc;
}
int saa7164_i2c_unregister(struct saa7164_i2c *bus)
{
i2c_del_adapter(&bus->i2c_adap);
return 0;
}

166
drivers/media/video/saa7164/saa7164-reg.h Normal file
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/*
* Driver for the NXP SAA7164 PCIe bridge
*
* Copyright (c) 2009 Steven Toth <stoth@kernellabs.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* TODO: Retest the driver with errors expressed as negatives */
/* Result codes */
#define SAA_OK 0
#define SAA_ERR_BAD_PARAMETER 0x09
#define SAA_ERR_NO_RESOURCES 0x0c
#define SAA_ERR_NOT_SUPPORTED 0x13
#define SAA_ERR_BUSY 0x15
#define SAA_ERR_READ 0x17
#define SAA_ERR_TIMEOUT 0x1f
#define SAA_ERR_OVERFLOW 0x20
#define SAA_ERR_EMPTY 0x22
#define SAA_ERR_NOT_STARTED 0x23
#define SAA_ERR_ALREADY_STARTED 0x24
#define SAA_ERR_NOT_STOPPED 0x25
#define SAA_ERR_ALREADY_STOPPED 0x26
#define SAA_ERR_INVALID_COMMAND 0x3e
#define SAA_ERR_NULL_PACKET 0x59
/* Errors and flags from the silicon */
#define PVC_ERRORCODE_UNKNOWN 0x00
#define PVC_ERRORCODE_INVALID_COMMAND 0x01
#define PVC_ERRORCODE_INVALID_CONTROL 0x02
#define PVC_ERRORCODE_INVALID_DATA 0x03
#define PVC_ERRORCODE_TIMEOUT 0x04
#define PVC_ERRORCODE_NAK 0x05
#define PVC_RESPONSEFLAG_ERROR 0x01
#define PVC_RESPONSEFLAG_OVERFLOW 0x02
#define PVC_RESPONSEFLAG_RESET 0x04
#define PVC_RESPONSEFLAG_INTERFACE 0x08
#define PVC_RESPONSEFLAG_CONTINUED 0x10
#define PVC_CMDFLAG_INTERRUPT 0x02
#define PVC_CMDFLAG_INTERFACE 0x04
#define PVC_CMDFLAG_SERIALIZE 0x08
#define PVC_CMDFLAG_CONTINUE 0x10
/* Silicon Commands */
#define GET_DESCRIPTORS_CONTROL 0x01
#define GET_STRING_CONTROL 0x03
#define GET_LANGUAGE_CONTROL 0x05
#define SET_POWER_CONTROL 0x07
#define GET_FW_VERSION_CONTROL 0x09
#define SET_DEBUG_LEVEL_CONTROL 0x0B
#define GET_DEBUG_DATA_CONTROL 0x0C
#define GET_PRODUCTION_INFO_CONTROL 0x0D
/* cmd defines */
#define SAA_CMDFLAG_CONTINUE 0x10
#define SAA_CMD_MAX_MSG_UNITS 256
/* Some defines */
#define SAA_BUS_TIMEOUT 50
#define SAA_DEVICE_TIMEOUT 5000
#define SAA_DEVICE_MAXREQUESTSIZE 256
/* Register addresses */
#define SAA_DEVICE_VERSION 0x30
#define SAA_DOWNLOAD_FLAGS 0x34
#define SAA_DOWNLOAD_FLAG 0x34
#define SAA_DOWNLOAD_FLAG_ACK 0x38
#define SAA_DATAREADY_FLAG 0x3C
#define SAA_DATAREADY_FLAG_ACK 0x40
/* Boot loader register and bit definitions */
#define SAA_BOOTLOADERERROR_FLAGS 0x44
#define SAA_DEVICE_IMAGE_SEARCHING 0x01
#define SAA_DEVICE_IMAGE_LOADING 0x02
#define SAA_DEVICE_IMAGE_BOOTING 0x03
#define SAA_DEVICE_IMAGE_CORRUPT 0x04
#define SAA_DEVICE_MEMORY_CORRUPT 0x08
#define SAA_DEVICE_NO_IMAGE 0x10
/* Register addresses */
#define SAA_DEVICE_2ND_VERSION 0x50
#define SAA_DEVICE_2ND_DOWNLOADFLAG_OFFSET 0x54
/* Register addresses */
#define SAA_SECONDSTAGEERROR_FLAGS 0x64
/* Bootloader regs and flags */
#define SAA_DEVICE_DEADLOCK_DETECTED_OFFSET 0x6C
#define SAA_DEVICE_DEADLOCK_DETECTED 0xDEADDEAD
/* Basic firmware status registers */
#define SAA_DEVICE_SYSINIT_STATUS_OFFSET 0x70
#define SAA_DEVICE_SYSINIT_STATUS 0x70
#define SAA_DEVICE_SYSINIT_MODE 0x74
#define SAA_DEVICE_SYSINIT_SPEC 0x78
#define SAA_DEVICE_SYSINIT_INST 0x7C
#define SAA_DEVICE_SYSINIT_CPULOAD 0x80
#define SAA_DEVICE_SYSINIT_REMAINHEAP 0x84
#define SAA_DEVICE_DOWNLOAD_OFFSET 0x1000
#define SAA_DEVICE_BUFFERBLOCKSIZE 0x1000
#define SAA_DEVICE_2ND_BUFFERBLOCKSIZE 0x100000
#define SAA_DEVICE_2ND_DOWNLOAD_OFFSET 0x200000
/* Descriptors */
#define CS_INTERFACE 0x24
/* Descriptor subtypes */
#define VC_INPUT_TERMINAL 0x02
#define VC_OUTPUT_TERMINAL 0x03
#define VC_SELECTOR_UNIT 0x04
#define VC_PROCESSING_UNIT 0x05
#define FEATURE_UNIT 0x06
#define TUNER_UNIT 0x09
#define ENCODER_UNIT 0x0A
#define EXTENSION_UNIT 0x0B
#define VC_TUNER_PATH 0xF0
#define PVC_HARDWARE_DESCRIPTOR 0xF1
#define PVC_INTERFACE_DESCRIPTOR 0xF2
#define PVC_INFRARED_UNIT 0xF3
#define DRM_UNIT 0xF4
#define GENERAL_REQUEST 0xF5
/* Format Types */
#define VS_FORMAT_TYPE 0x02
#define VS_FORMAT_TYPE_I 0x01
#define VS_FORMAT_UNCOMPRESSED 0x04
#define VS_FRAME_UNCOMPRESSED 0x05
#define VS_FORMAT_MPEG2PS 0x09
#define VS_FORMAT_MPEG2TS 0x0A
#define VS_FORMAT_MPEG4SL 0x0B
#define VS_FORMAT_WM9 0x0C
#define VS_FORMAT_DIVX 0x0D
#define VS_FORMAT_VBI 0x0E
#define VS_FORMAT_RDS 0x0F
/* Device extension commands */
#define EXU_REGISTER_ACCESS_CONTROL 0x00
#define EXU_GPIO_CONTROL 0x01
#define EXU_GPIO_GROUP_CONTROL 0x02
#define EXU_INTERRUPT_CONTROL 0x03
/* State Transition and args */
#define SAA_STATE_CONTROL 0x03
#define SAA_DMASTATE_STOP 0x00
#define SAA_DMASTATE_ACQUIRE 0x01
#define SAA_DMASTATE_PAUSE 0x02
#define SAA_DMASTATE_RUN 0x03
/* Hardware registers */

287
drivers/media/video/saa7164/saa7164-types.h Normal file
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/*
* Driver for the NXP SAA7164 PCIe bridge
*
* Copyright (c) 2009 Steven Toth <stoth@kernellabs.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* TODO: Cleanup and shorten the namespace */
/* Some structues are passed directly to/from the firmware and
* have strict alignment requirements. This is one of them.
*/
typedef struct {
u8 bLength;
u8 bDescriptorType;
u8 bDescriptorSubtype;
u16 bcdSpecVersion;
u32 dwClockFrequency;
u32 dwClockUpdateRes;
u8 bCapabilities;
u32 dwDeviceRegistersLocation;
u32 dwHostMemoryRegion;
u32 dwHostMemoryRegionSize;
u32 dwHostHibernatMemRegion;
u32 dwHostHibernatMemRegionSize;
} __attribute__((packed)) tmComResHWDescr_t;
/* This is DWORD aligned on windows but I can't find the right
* gcc syntax to match the binary data from the device.
* I've manually padded with Reserved[3] bytes to match the hardware,
* but this could break if GCC decies to pack in a different way.
*/
typedef struct {
u8 bLength;
u8 bDescriptorType;
u8 bDescriptorSubtype;
u8 bFlags;
u8 bInterfaceType;
u8 bInterfaceId;
u8 bBaseInterface;
u8 bInterruptId;
u8 bDebugInterruptId;
u8 BARLocation;
u8 Reserved[3];
} tmComResInterfaceDescr_t;
typedef struct {
u64 CommandRing;
u64 ResponseRing;
u32 CommandWrite;
u32 CommandRead;
u32 ResponseWrite;
u32 ResponseRead;
} tmComResBusDescr_t;
typedef enum {
NONE = 0,
TYPE_BUS_PCI = 1,
TYPE_BUS_PCIe = 2,
TYPE_BUS_USB = 3,
TYPE_BUS_I2C = 4
} tmBusType_t;
typedef struct {
tmBusType_t Type;
u16 m_wMaxReqSize;
u8 *m_pdwSetRing;
u32 m_dwSizeSetRing;
u8 *m_pdwGetRing;
u32 m_dwSizeGetRing;
u32 *m_pdwSetWritePos;
u32 *m_pdwSetReadPos;
u32 *m_pdwGetWritePos;
u32 *m_pdwGetReadPos;
/* All access is protected */
struct mutex lock;
} tmComResBusInfo_t;
typedef struct {
u8 id;
u8 flags;
u16 size;
u32 command;
u16 controlselector;
u8 seqno;
} __attribute__((packed)) tmComResInfo_t;
typedef enum {
SET_CUR = 0x01,
GET_CUR = 0x81,
GET_MIN = 0x82,
GET_MAX = 0x83,
GET_RES = 0x84,
GET_LEN = 0x85,
GET_INFO = 0x86,
GET_DEF = 0x87
} tmComResCmd_t;
struct cmd {
u8 seqno;
u32 inuse;
u32 timeout;
u32 signalled;
struct mutex lock;
wait_queue_head_t wait;
};
typedef struct {
u32 pathid;
u32 size;
void *descriptor;
} tmDescriptor_t;
typedef struct {
u8 len;
u8 type;
u8 subtype;
u8 unitid;
} __attribute__((packed)) tmComResDescrHeader_t;
typedef struct {
u8 len;
u8 type;
u8 subtype;
u8 unitid;
u32 devicetype;
u16 deviceid;
u32 numgpiopins;
u8 numgpiogroups;
u8 controlsize;
} __attribute__((packed)) tmComResExtDevDescrHeader_t;
typedef struct {
u32 pin;
u8 state;
} __attribute__((packed)) tmComResGPIO_t;
typedef struct {
u8 len;
u8 type;
u8 subtype;
u8 pathid;
} __attribute__((packed)) tmComResPathDescrHeader_t;
/* terminaltype */
typedef enum {
ITT_ANTENNA = 0x0203,
LINE_CONNECTOR = 0x0603,
SPDIF_CONNECTOR = 0x0605,
COMPOSITE_CONNECTOR = 0x0401,
SVIDEO_CONNECTOR = 0x0402,
COMPONENT_CONNECTOR = 0x0403,
STANDARD_DMA = 0xF101
} tmComResTermType_t;
typedef struct {
u8 len;
u8 type;
u8 subtype;
u8 terminalid;
u16 terminaltype;
u8 assocterminal;
u8 iterminal;
u8 controlsize;
} __attribute__((packed)) tmComResAntTermDescrHeader_t;
typedef struct {
u8 len;
u8 type;
u8 subtype;
u8 unitid;
u8 sourceid;
u8 iunit;
u32 tuningstandards;
u8 controlsize;
u32 controls;
} __attribute__((packed)) tmComResTunerDescrHeader_t;
typedef enum {
/* the buffer does not contain any valid data */
TM_BUFFER_FLAG_EMPTY,
/* the buffer is filled with valid data */
TM_BUFFER_FLAG_DONE,
/* the buffer is the dummy buffer - TODO??? */
TM_BUFFER_FLAG_DUMMY_BUFFER
} tmBufferFlag_t;
typedef struct {
u64 *pagetablevirt;
u64 pagetablephys;
u16 offset;
u8 *context;
u64 timestamp;
tmBufferFlag_t BufferFlag_t;
u32 lostbuffers;
u32 validbuffers;
u64 *dummypagevirt;
u64 dummypagephys;
u64 *addressvirt;
} tmBuffer_t;
typedef struct {
u32 bitspersample;
u32 samplesperline;
u32 numberoflines;
u32 pitch;
u32 linethreshold;
u64 **pagetablelistvirt;
u64 *pagetablelistphys;
u32 numpagetables;
u32 numpagetableentries;
} tmHWStreamParameters_t;
typedef struct {
tmHWStreamParameters_t HWStreamParameters_t;
u64 qwDummyPageTablePhys;
u64 *pDummyPageTableVirt;
} tmStreamParameters_t;
typedef struct {
u8 len;
u8 type;
u8 subtyle;
u8 unitid;
u16 terminaltype;
u8 assocterminal;
u8 sourceid;
u8 iterminal;
u32 BARLocation;
u8 flags;
u8 interruptid;
u8 buffercount;
u8 metadatasize;
u8 numformats;
u8 controlsize;
} __attribute__((packed)) tmComResDMATermDescrHeader_t;
/*
*
* Description:
* This is the transport stream format header.
*
* Settings:
* bLength - The size of this descriptor in bytes.
* bDescriptorType - CS_INTERFACE.
* bDescriptorSubtype - VS_FORMAT_MPEG2TS descriptor subtype.
* bFormatIndex - A non-zero constant that uniquely identifies the
* format.
* bDataOffset - Offset to TSP packet within MPEG-2 TS transport
* stride, in bytes.
* bPacketLength - Length of TSP packet, in bytes (typically 188).
* bStrideLength - Length of MPEG-2 TS transport stride.
* guidStrideFormat - A Globally Unique Identifier indicating the
* format of the stride data (if any). Set to zeros
* if there is no Stride Data, or if the Stride
* Data is to be ignored by the application.
*
*/
typedef struct {
u8 len;
u8 type;
u8 subtype;
u8 bFormatIndex;
u8 bDataOffset;
u8 bPacketLength;
u8 bStrideLength;
u8 guidStrideFormat[16];
} __attribute__((packed)) tmComResTSFormatDescrHeader_t;

401
drivers/media/video/saa7164/saa7164.h Normal file
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/*
* Driver for the NXP SAA7164 PCIe bridge
*
* Copyright (c) 2009 Steven Toth <stoth@kernellabs.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
Driver architecture
*******************
saa7164_core.c/buffer.c/cards.c/i2c.c/dvb.c
| : Standard Linux driver framework for creating
| : exposing and managing interfaces to the rest
| : of the kernel or userland. Also uses _fw.c to load
| : firmware direct into the PCIe bus, bypassing layers.
V
saa7164_api..() : Translate kernel specific functions/features
| : into command buffers.
V
saa7164_cmd..() : Manages the flow of command packets on/off,
| : the bus. Deal with bus errors, timeouts etc.
V
saa7164_bus..() : Manage a read/write memory ring buffer in the
| : PCIe Address space.
|
| saa7164_fw...() : Load any frimware
| | : direct into the device
V V
<- ----------------- PCIe address space -------------------- ->
*/
#include <linux/pci.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/kdev_t.h>
#include <media/tuner.h>
#include <media/tveeprom.h>
#include <media/videobuf-dma-sg.h>
#include <media/videobuf-dvb.h>
#include "saa7164-reg.h"
#include "saa7164-types.h"
#include <linux/version.h>
#include <linux/mutex.h>
#define SAA7164_MAXBOARDS 8
#define UNSET (-1U)
#define SAA7164_BOARD_NOAUTO UNSET
#define SAA7164_BOARD_UNKNOWN 0
#define SAA7164_BOARD_UNKNOWN_REV2 1
#define SAA7164_BOARD_UNKNOWN_REV3 2
#define SAA7164_BOARD_HAUPPAUGE_HVR2250 3
#define SAA7164_BOARD_HAUPPAUGE_HVR2200 4
#define SAA7164_BOARD_HAUPPAUGE_HVR2200_2 5
#define SAA7164_BOARD_HAUPPAUGE_HVR2200_3 6
#define SAA7164_BOARD_HAUPPAUGE_HVR2250_2 7
#define SAA7164_MAX_UNITS 8
#define SAA7164_TS_NUMBER_OF_LINES 312
#define SAA7164_PT_ENTRIES 16 /* (312 * 188) / 4096 */
#define DBGLVL_FW 4
#define DBGLVL_DVB 8
#define DBGLVL_I2C 16
#define DBGLVL_API 32
#define DBGLVL_CMD 64
#define DBGLVL_BUS 128
#define DBGLVL_IRQ 256
#define DBGLVL_BUF 512
enum port_t {
SAA7164_MPEG_UNDEFINED = 0,
SAA7164_MPEG_DVB,
};
enum saa7164_i2c_bus_nr {
SAA7164_I2C_BUS_0 = 0,
SAA7164_I2C_BUS_1,
SAA7164_I2C_BUS_2,
};
enum saa7164_buffer_flags {
SAA7164_BUFFER_UNDEFINED = 0,
SAA7164_BUFFER_FREE,
SAA7164_BUFFER_BUSY,
SAA7164_BUFFER_FULL
};
enum saa7164_unit_type {
SAA7164_UNIT_UNDEFINED = 0,
SAA7164_UNIT_DIGITAL_DEMODULATOR,
SAA7164_UNIT_ANALOG_DEMODULATOR,
SAA7164_UNIT_TUNER,
SAA7164_UNIT_EEPROM,
SAA7164_UNIT_ZILOG_IRBLASTER,
SAA7164_UNIT_ENCODER,
};
/* The PCIe bridge doesn't grant direct access to i2c.
* Instead, you address i2c devices using a uniqely
* allocated 'unitid' value via a messaging API. This
* is a problem. The kernel and existing demod/tuner
* drivers expect to talk 'i2c', so we have to maintain
* a translation layer, and a series of functions to
* convert i2c bus + device address into a unit id.
*/
struct saa7164_unit {
enum saa7164_unit_type type;
u8 id;
char *name;
enum saa7164_i2c_bus_nr i2c_bus_nr;
u8 i2c_bus_addr;
u8 i2c_reg_len;
};
struct saa7164_board {
char *name;
enum port_t porta, portb;
enum {
SAA7164_CHIP_UNDEFINED = 0,
SAA7164_CHIP_REV2,
SAA7164_CHIP_REV3,
} chiprev;
struct saa7164_unit unit[SAA7164_MAX_UNITS];
};
struct saa7164_subid {
u16 subvendor;
u16 subdevice;
u32 card;
};
struct saa7164_fw_status {
/* RISC Core details */
u32 status;
u32 mode;
u32 spec;
u32 inst;
u32 cpuload;
u32 remainheap;
/* Firmware version */
u32 version;
u32 major;
u32 sub;
u32 rel;
u32 buildnr;
};
struct saa7164_dvb {
struct mutex lock;
struct dvb_adapter adapter;
struct dvb_frontend *frontend;
struct dvb_demux demux;
struct dmxdev dmxdev;
struct dmx_frontend fe_hw;
struct dmx_frontend fe_mem;
struct dvb_net net;
int feeding;
};
struct saa7164_i2c {
struct saa7164_dev *dev;
enum saa7164_i2c_bus_nr nr;
/* I2C I/O */
struct i2c_adapter i2c_adap;
struct i2c_algo_bit_data i2c_algo;
struct i2c_client i2c_client;
u32 i2c_rc;
};
struct saa7164_tsport;
struct saa7164_buffer {
struct list_head list;
u32 nr;
struct saa7164_tsport *port;
/* Hardware Specific */
/* PCI Memory allocations */
enum saa7164_buffer_flags flags; /* Free, Busy, Full */
/* A block of page align PCI memory */
u32 pci_size; /* PCI allocation size in bytes */
u64 *cpu; /* Virtual address */
dma_addr_t dma; /* Physical address */
/* A page table that splits the block into a number of entries */
u32 pt_size; /* PCI allocation size in bytes */
u64 *pt_cpu; /* Virtual address */
dma_addr_t pt_dma; /* Physical address */
};
struct saa7164_tsport {
struct saa7164_dev *dev;
int nr;
enum port_t type;
struct saa7164_dvb dvb;
/* HW related stream parameters */
tmHWStreamParameters_t hw_streamingparams;
/* DMA configuration values, is seeded during initialization */
tmComResDMATermDescrHeader_t hwcfg;
/* hardware specific registers */
u32 bufcounter;
u32 pitch;
u32 bufsize;
u32 bufoffset;
u32 bufptr32l;
u32 bufptr32h;
u64 bufptr64;
u32 numpte; /* Number of entries in array, only valid in head */
struct mutex dmaqueue_lock;
struct mutex dummy_dmaqueue_lock;
struct saa7164_buffer dmaqueue;
struct saa7164_buffer dummy_dmaqueue;
};
struct saa7164_dev {
struct list_head devlist;
atomic_t refcount;
/* pci stuff */
struct pci_dev *pci;
unsigned char pci_rev, pci_lat;
int pci_bus, pci_slot;
u32 __iomem *lmmio;
u8 __iomem *bmmio;
u32 __iomem *lmmio2;
u8 __iomem *bmmio2;
int pci_irqmask;
/* board details */
int nr;
int hwrevision;
u32 board;
char name[32];
/* firmware status */
struct saa7164_fw_status fw_status;
tmComResHWDescr_t hwdesc;
tmComResInterfaceDescr_t intfdesc;
tmComResBusDescr_t busdesc;
tmComResBusInfo_t bus;
/* TODO: Urgh, remove volatiles */
volatile u32 *InterruptStatus;
volatile u32 *InterruptAck;
struct cmd cmds[SAA_CMD_MAX_MSG_UNITS];
struct mutex lock;
/* I2c related */
struct saa7164_i2c i2c_bus[3];
/* Transport related */
struct saa7164_tsport ts1, ts2;
/* Deferred command/api interrupts handling */
struct work_struct workcmd;
};
extern struct list_head saa7164_devlist;
/* ----------------------------------------------------------- */
/* saa7164-core.c */
void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr);
void saa7164_dumphex16(struct saa7164_dev *dev, u8 *buf, int len);
void saa7164_getfirmwarestatus(struct saa7164_dev *dev);
u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev);
/* ----------------------------------------------------------- */
/* saa7164-fw.c */
int saa7164_downloadfirmware(struct saa7164_dev *dev);
/* ----------------------------------------------------------- */
/* saa7164-i2c.c */
extern int saa7164_i2c_register(struct saa7164_i2c *bus);
extern int saa7164_i2c_unregister(struct saa7164_i2c *bus);
extern void saa7164_call_i2c_clients(struct saa7164_i2c *bus,
unsigned int cmd, void *arg);
/* ----------------------------------------------------------- */
/* saa7164-bus.c */
int saa7164_bus_setup(struct saa7164_dev *dev);
void saa7164_bus_dump(struct saa7164_dev *dev);
int saa7164_bus_set(struct saa7164_dev *dev, tmComResInfo_t* msg, void *buf);
int saa7164_bus_get(struct saa7164_dev *dev, tmComResInfo_t* msg,
void *buf, int peekonly);
/* ----------------------------------------------------------- */
/* saa7164-cmd.c */
int saa7164_cmd_send(struct saa7164_dev *dev,
u8 id, tmComResCmd_t command, u16 controlselector,
u16 size, void *buf);
void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno);
/* ----------------------------------------------------------- */
/* saa7164-api.c */
int saa7164_api_test(struct saa7164_dev *dev);
int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version);
int saa7164_api_enum_subdevs(struct saa7164_dev *dev);
int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg,
u32 datalen, u8 *data);
int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr,
u32 datalen, u8 *data);
int saa7164_api_dif_write(struct saa7164_i2c *bus, u8 addr,
u32 datalen, u8 *data);
int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen);
int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
int saa7164_api_transition_port(struct saa7164_tsport *port, u8 mode);
/* ----------------------------------------------------------- */
/* saa7164-cards.c */
extern struct saa7164_board saa7164_boards[];
extern const unsigned int saa7164_bcount;
extern struct saa7164_subid saa7164_subids[];
extern const unsigned int saa7164_idcount;
extern void saa7164_card_list(struct saa7164_dev *dev);
extern void saa7164_gpio_setup(struct saa7164_dev *dev);
extern void saa7164_card_setup(struct saa7164_dev *dev);
extern int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr);
extern int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr);
extern char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid);
/* ----------------------------------------------------------- */
/* saa7164-dvb.c */
extern int saa7164_dvb_register(struct saa7164_tsport *port);
extern int saa7164_dvb_unregister(struct saa7164_tsport *port);
/* ----------------------------------------------------------- */
/* saa7164-buffer.c */
extern struct saa7164_buffer *saa7164_buffer_alloc(struct saa7164_tsport *port,
u32 len);
extern int saa7164_buffer_dealloc(struct saa7164_tsport *port,
struct saa7164_buffer *buf);
/* ----------------------------------------------------------- */
extern unsigned int debug;
#define dprintk(level, fmt, arg...)\
do { if (debug & level)\
printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
} while (0)
#define log_warn(fmt, arg...)\
do { \
printk(KERN_WARNING "%s: " fmt, dev->name, ## arg);\
} while (0)
#define log_err(fmt, arg...)\
do { \
printk(KERN_ERROR "%s: " fmt, dev->name, ## arg);\
} while (0)
#define saa7164_readl(reg) readl(dev->lmmio + ((reg) >> 2))
#define saa7164_writel(reg, value) \
do { \
printk(KERN_ERR "writel(%x, %llx)\n", value, (u64)(dev->lmmio + ((reg) >> 2))); \
writel((value), dev->lmmio + ((reg) >> 2)); \
} while (0)
#define saa7164_readb(reg) readl(dev->bmmio + (reg))
#define saa7164_writeb(reg, value) writel((value), dev->bmmio + (reg))