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linux/drivers/media/video/saa7164/saa7164-core.c
Ingo Molnar b1912a85b5 media: video: Fix build in saa7164 
-tip testing found that the x86 build (64-bit allyesconfig) fails due to:

  LD      vmlinux.o
  drivers/built-in.o:(.bss+0x4b648): multiple definition of `debug'
  arch/x86/built-in.o:(.kprobes.text+0x88): first defined here
  ld: Warning: size of symbol `debug' changed from 90 in
arch/x86/built-in.o to 4 in drivers/built-in.o
 make: *** [vmlinux.o] Error 1

This is because recent saa7164 changes introduced a global symbol
named 'debug'. The x86 platform code already defines a 'debug'
symbol. (which is named in a too generic way as well - but it
can be used nicely to weed out too generic symbols in drivers ;-)

Rename it to saa_debug.

[mchehab@redhat.com: use module_param_named to preserve old name]

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-22 18:58:17 -03:00

741 lines
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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/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@kernellabs.com>");
MODULE_LICENSE("GPL");
/*
1 Basic
2
4 i2c
8 api
16 cmd
32 bus
*/
unsigned int saa_debug;
module_param_named(debug, saa_debug, int, 0644);
MODULE_PARM_DESC(debug, "enable debug messages");
unsigned int waitsecs = 10;
module_param(waitsecs, int, 0644);
MODULE_PARM_DESC(debug, "timeout on firmware 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_irq_dequeue(dev);
}
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, (u8 *)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 intid, intstat[INT_SIZE/4];
int i, handled = 0, bit;
if (dev == 0) {
printk(KERN_ERR "%s() No device specified\n", __func__);
handled = 0;
goto out;
}
/* 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.
* 4 x u32 interrupt registers.
*/
for (i = 0; i < INT_SIZE/4; i++) {
/* TODO: Convert into saa7164_readl() */
/* Read the 4 hardware interrupt registers */
intstat[i] = saa7164_readl(dev->int_status + (i * 4));
if (intstat[i])
handled = 1;
}
if (handled == 0)
goto out;
/* 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) */
intid = (i * 32) + bit;
if (intid == dev->intfdesc.bInterruptId) {
/* A response to an cmd/api call */
schedule_work(&dev->workcmd);
} else if (intid ==
dev->ts1.hwcfg.interruptid) {
/* Transport path 1 */
saa7164_irq_ts(&dev->ts1);
} else if (intid ==
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, intid);
}
}
/* Ack it */
saa7164_writel(dev->int_ack + (i * 4), 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) = %d bytes\n",
&dev->hwdesc, (u32)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) = %d bytes\n",
&dev->intfdesc, (u32)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) = %d bytes\n",
&dev->busdesc, (u32)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 %d\n", dev->hwdesc.bLength,
(u32)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 %d\n", dev->intfdesc.bLength,
(u32)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));
dev->bmmio = (u8 __iomem *)dev->lmmio;
dev->bmmio2 = (u8 __iomem *)dev->lmmio2;
/* Inerrupt and ack register locations offset of bmmio */
dev->int_status = 0x183000 + 0xf80;
dev->int_ack = 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);
/* 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, no features "
"registered\n");
goto fail_fw;
}
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);
/* 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__);
dprintk(1, "%s() parameter debug = %d\n", __func__, saa_debug);
dprintk(1, "%s() parameter waitsecs = %d\n", __func__, waitsecs);
fail_fw:
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);
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