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linux-next/drivers/media/dvb/siano/smsusb.c
Márton Németh 2184dda0d4 V4L/DVB (13683): sanio-ms: clean up init, exit and id_table 
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Make module_init static and mark it with __init.
Make module_exit static and mark it with __exit.
Mark probe functions with __devinit.
Make id table static and mark with __devinitconst.

This will eliminate the following sparse warnings (see "make C=1"):
 * smsdvb.c:668:5: warning: symbol 'smsdvb_module_init' was not declared. Should it be static?
 * smsdvb.c:682:6: warning: symbol 'smsdvb_module_exit' was not declared. Should it be static?
 * smsusb.c:491:22: warning: symbol 'smsusb_id_table' was not declared. Should it be static?
 * smsusb.c:567:5: warning: symbol 'smsusb_module_init' was not declared. Should it be static?
 * smsusb.c:578:6: warning: symbol 'smsusb_module_exit' was not declared. Should it be static?
 * smssdio.c:341:5: warning: symbol 'smssdio_module_init' was not declared. Should it be static?
 * smssdio.c:353:6: warning: symbol 'smssdio_module_exit' was not declared. Should it be static?

Signed-off-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 09:27:53 -02:00

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/****************************************************************
Siano Mobile Silicon, Inc.
MDTV receiver kernel modules.
Copyright (C) 2005-2009, Uri Shkolnik, Anatoly Greenblat
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, see <http://www.gnu.org/licenses/>.
****************************************************************/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/usb.h>
#include <linux/firmware.h>
#include "smscoreapi.h"
#include "sms-cards.h"
#include "smsendian.h"
static int sms_dbg;
module_param_named(debug, sms_dbg, int, 0644);
MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
#define USB1_BUFFER_SIZE 0x1000
#define USB2_BUFFER_SIZE 0x4000
#define MAX_BUFFERS 50
#define MAX_URBS 10
struct smsusb_device_t;
struct smsusb_urb_t {
struct smscore_buffer_t *cb;
struct smsusb_device_t *dev;
struct urb urb;
};
struct smsusb_device_t {
struct usb_device *udev;
struct smscore_device_t *coredev;
struct smsusb_urb_t surbs[MAX_URBS];
int response_alignment;
int buffer_size;
};
static int smsusb_submit_urb(struct smsusb_device_t *dev,
struct smsusb_urb_t *surb);
static void smsusb_onresponse(struct urb *urb)
{
struct smsusb_urb_t *surb = (struct smsusb_urb_t *) urb->context;
struct smsusb_device_t *dev = surb->dev;
if (urb->status == -ESHUTDOWN) {
sms_err("error, urb status %d (-ESHUTDOWN), %d bytes",
urb->status, urb->actual_length);
return;
}
if ((urb->actual_length > 0) && (urb->status == 0)) {
struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *)surb->cb->p;
smsendian_handle_message_header(phdr);
if (urb->actual_length >= phdr->msgLength) {
surb->cb->size = phdr->msgLength;
if (dev->response_alignment &&
(phdr->msgFlags & MSG_HDR_FLAG_SPLIT_MSG)) {
surb->cb->offset =
dev->response_alignment +
((phdr->msgFlags >> 8) & 3);
/* sanity check */
if (((int) phdr->msgLength +
surb->cb->offset) > urb->actual_length) {
sms_err("invalid response "
"msglen %d offset %d "
"size %d",
phdr->msgLength,
surb->cb->offset,
urb->actual_length);
goto exit_and_resubmit;
}
/* move buffer pointer and
* copy header to its new location */
memcpy((char *) phdr + surb->cb->offset,
phdr, sizeof(struct SmsMsgHdr_ST));
} else
surb->cb->offset = 0;
smscore_onresponse(dev->coredev, surb->cb);
surb->cb = NULL;
} else {
sms_err("invalid response "
"msglen %d actual %d",
phdr->msgLength, urb->actual_length);
}
} else
sms_err("error, urb status %d, %d bytes",
urb->status, urb->actual_length);
exit_and_resubmit:
smsusb_submit_urb(dev, surb);
}
static int smsusb_submit_urb(struct smsusb_device_t *dev,
struct smsusb_urb_t *surb)
{
if (!surb->cb) {
surb->cb = smscore_getbuffer(dev->coredev);
if (!surb->cb) {
sms_err("smscore_getbuffer(...) returned NULL");
return -ENOMEM;
}
}
usb_fill_bulk_urb(
&surb->urb,
dev->udev,
usb_rcvbulkpipe(dev->udev, 0x81),
surb->cb->p,
dev->buffer_size,
smsusb_onresponse,
surb
);
surb->urb.transfer_dma = surb->cb->phys;
surb->urb.transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
return usb_submit_urb(&surb->urb, GFP_ATOMIC);
}
static void smsusb_stop_streaming(struct smsusb_device_t *dev)
{
int i;
for (i = 0; i < MAX_URBS; i++) {
usb_kill_urb(&dev->surbs[i].urb);
if (dev->surbs[i].cb) {
smscore_putbuffer(dev->coredev, dev->surbs[i].cb);
dev->surbs[i].cb = NULL;
}
}
}
static int smsusb_start_streaming(struct smsusb_device_t *dev)
{
int i, rc;
for (i = 0; i < MAX_URBS; i++) {
rc = smsusb_submit_urb(dev, &dev->surbs[i]);
if (rc < 0) {
sms_err("smsusb_submit_urb(...) failed");
smsusb_stop_streaming(dev);
break;
}
}
return rc;
}
static int smsusb_sendrequest(void *context, void *buffer, size_t size)
{
struct smsusb_device_t *dev = (struct smsusb_device_t *) context;
int dummy;
smsendian_handle_message_header((struct SmsMsgHdr_ST *)buffer);
return usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2),
buffer, size, &dummy, 1000);
}
static char *smsusb1_fw_lkup[] = {
"dvbt_stellar_usb.inp",
"dvbh_stellar_usb.inp",
"tdmb_stellar_usb.inp",
"none",
"dvbt_bda_stellar_usb.inp",
};
static inline char *sms_get_fw_name(int mode, int board_id)
{
char **fw = sms_get_board(board_id)->fw;
return (fw && fw[mode]) ? fw[mode] : smsusb1_fw_lkup[mode];
}
static int smsusb1_load_firmware(struct usb_device *udev, int id, int board_id)
{
const struct firmware *fw;
u8 *fw_buffer;
int rc, dummy;
char *fw_filename;
if (id < DEVICE_MODE_DVBT || id > DEVICE_MODE_DVBT_BDA) {
sms_err("invalid firmware id specified %d", id);
return -EINVAL;
}
fw_filename = sms_get_fw_name(id, board_id);
rc = request_firmware(&fw, fw_filename, &udev->dev);
if (rc < 0) {
sms_warn("failed to open \"%s\" mode %d, "
"trying again with default firmware", fw_filename, id);
fw_filename = smsusb1_fw_lkup[id];
rc = request_firmware(&fw, fw_filename, &udev->dev);
if (rc < 0) {
sms_warn("failed to open \"%s\" mode %d",
fw_filename, id);
return rc;
}
}
fw_buffer = kmalloc(fw->size, GFP_KERNEL);
if (fw_buffer) {
memcpy(fw_buffer, fw->data, fw->size);
rc = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 2),
fw_buffer, fw->size, &dummy, 1000);
sms_info("sent %zd(%d) bytes, rc %d", fw->size, dummy, rc);
kfree(fw_buffer);
} else {
sms_err("failed to allocate firmware buffer");
rc = -ENOMEM;
}
sms_info("read FW %s, size=%zd", fw_filename, fw->size);
release_firmware(fw);
return rc;
}
static void smsusb1_detectmode(void *context, int *mode)
{
char *product_string =
((struct smsusb_device_t *) context)->udev->product;
*mode = DEVICE_MODE_NONE;
if (!product_string) {
product_string = "none";
sms_err("product string not found");
} else if (strstr(product_string, "DVBH"))
*mode = 1;
else if (strstr(product_string, "BDA"))
*mode = 4;
else if (strstr(product_string, "DVBT"))
*mode = 0;
else if (strstr(product_string, "TDMB"))
*mode = 2;
sms_info("%d \"%s\"", *mode, product_string);
}
static int smsusb1_setmode(void *context, int mode)
{
struct SmsMsgHdr_ST Msg = { MSG_SW_RELOAD_REQ, 0, HIF_TASK,
sizeof(struct SmsMsgHdr_ST), 0 };
if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_DVBT_BDA) {
sms_err("invalid firmware id specified %d", mode);
return -EINVAL;
}
return smsusb_sendrequest(context, &Msg, sizeof(Msg));
}
static void smsusb_term_device(struct usb_interface *intf)
{
struct smsusb_device_t *dev =
(struct smsusb_device_t *) usb_get_intfdata(intf);
if (dev) {
smsusb_stop_streaming(dev);
/* unregister from smscore */
if (dev->coredev)
smscore_unregister_device(dev->coredev);
kfree(dev);
sms_info("device %p destroyed", dev);
}
usb_set_intfdata(intf, NULL);
}
static int smsusb_init_device(struct usb_interface *intf, int board_id)
{
struct smsdevice_params_t params;
struct smsusb_device_t *dev;
int i, rc;
/* create device object */
dev = kzalloc(sizeof(struct smsusb_device_t), GFP_KERNEL);
if (!dev) {
sms_err("kzalloc(sizeof(struct smsusb_device_t) failed");
return -ENOMEM;
}
memset(&params, 0, sizeof(params));
usb_set_intfdata(intf, dev);
dev->udev = interface_to_usbdev(intf);
params.device_type = sms_get_board(board_id)->type;
switch (params.device_type) {
case SMS_STELLAR:
dev->buffer_size = USB1_BUFFER_SIZE;
params.setmode_handler = smsusb1_setmode;
params.detectmode_handler = smsusb1_detectmode;
break;
default:
sms_err("Unspecified sms device type!");
/* fall-thru */
case SMS_NOVA_A0:
case SMS_NOVA_B0:
case SMS_VEGA:
dev->buffer_size = USB2_BUFFER_SIZE;
dev->response_alignment =
le16_to_cpu(dev->udev->ep_in[1]->desc.wMaxPacketSize) -
sizeof(struct SmsMsgHdr_ST);
params.flags |= SMS_DEVICE_FAMILY2;
break;
}
params.device = &dev->udev->dev;
params.buffer_size = dev->buffer_size;
params.num_buffers = MAX_BUFFERS;
params.sendrequest_handler = smsusb_sendrequest;
params.context = dev;
snprintf(params.devpath, sizeof(params.devpath),
"usb\\%d-%s", dev->udev->bus->busnum, dev->udev->devpath);
/* register in smscore */
rc = smscore_register_device(&params, &dev->coredev);
if (rc < 0) {
sms_err("smscore_register_device(...) failed, rc %d", rc);
smsusb_term_device(intf);
return rc;
}
smscore_set_board_id(dev->coredev, board_id);
/* initialize urbs */
for (i = 0; i < MAX_URBS; i++) {
dev->surbs[i].dev = dev;
usb_init_urb(&dev->surbs[i].urb);
}
sms_info("smsusb_start_streaming(...).");
rc = smsusb_start_streaming(dev);
if (rc < 0) {
sms_err("smsusb_start_streaming(...) failed");
smsusb_term_device(intf);
return rc;
}
rc = smscore_start_device(dev->coredev);
if (rc < 0) {
sms_err("smscore_start_device(...) failed");
smsusb_term_device(intf);
return rc;
}
sms_info("device %p created", dev);
return rc;
}
static int __devinit smsusb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_device *udev = interface_to_usbdev(intf);
char devpath[32];
int i, rc;
rc = usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x81));
rc = usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x02));
if (intf->num_altsetting > 0) {
rc = usb_set_interface(
udev, intf->cur_altsetting->desc.bInterfaceNumber, 0);
if (rc < 0) {
sms_err("usb_set_interface failed, rc %d", rc);
return rc;
}
}
sms_info("smsusb_probe %d",
intf->cur_altsetting->desc.bInterfaceNumber);
for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++)
sms_info("endpoint %d %02x %02x %d", i,
intf->cur_altsetting->endpoint[i].desc.bEndpointAddress,
intf->cur_altsetting->endpoint[i].desc.bmAttributes,
intf->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
if ((udev->actconfig->desc.bNumInterfaces == 2) &&
(intf->cur_altsetting->desc.bInterfaceNumber == 0)) {
sms_err("rom interface 0 is not used");
return -ENODEV;
}
if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
snprintf(devpath, sizeof(devpath), "usb\\%d-%s",
udev->bus->busnum, udev->devpath);
sms_info("stellar device was found.");
return smsusb1_load_firmware(
udev, smscore_registry_getmode(devpath),
id->driver_info);
}
rc = smsusb_init_device(intf, id->driver_info);
sms_info("rc %d", rc);
sms_board_load_modules(id->driver_info);
return rc;
}
static void smsusb_disconnect(struct usb_interface *intf)
{
smsusb_term_device(intf);
}
static int smsusb_suspend(struct usb_interface *intf, pm_message_t msg)
{
struct smsusb_device_t *dev =
(struct smsusb_device_t *)usb_get_intfdata(intf);
printk(KERN_INFO "%s: Entering status %d.\n", __func__, msg.event);
smsusb_stop_streaming(dev);
return 0;
}
static int smsusb_resume(struct usb_interface *intf)
{
int rc, i;
struct smsusb_device_t *dev =
(struct smsusb_device_t *)usb_get_intfdata(intf);
struct usb_device *udev = interface_to_usbdev(intf);
printk(KERN_INFO "%s: Entering.\n", __func__);
usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x81));
usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x02));
for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++)
printk(KERN_INFO "endpoint %d %02x %02x %d\n", i,
intf->cur_altsetting->endpoint[i].desc.bEndpointAddress,
intf->cur_altsetting->endpoint[i].desc.bmAttributes,
intf->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
if (intf->num_altsetting > 0) {
rc = usb_set_interface(udev,
intf->cur_altsetting->desc.
bInterfaceNumber, 0);
if (rc < 0) {
printk(KERN_INFO "%s usb_set_interface failed, "
"rc %d\n", __func__, rc);
return rc;
}
}
smsusb_start_streaming(dev);
return 0;
}
static const struct usb_device_id smsusb_id_table[] __devinitconst = {
{ USB_DEVICE(0x187f, 0x0010),
.driver_info = SMS1XXX_BOARD_SIANO_STELLAR },
{ USB_DEVICE(0x187f, 0x0100),
.driver_info = SMS1XXX_BOARD_SIANO_STELLAR },
{ USB_DEVICE(0x187f, 0x0200),
.driver_info = SMS1XXX_BOARD_SIANO_NOVA_A },
{ USB_DEVICE(0x187f, 0x0201),
.driver_info = SMS1XXX_BOARD_SIANO_NOVA_B },
{ USB_DEVICE(0x187f, 0x0300),
.driver_info = SMS1XXX_BOARD_SIANO_VEGA },
{ USB_DEVICE(0x2040, 0x1700),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_CATAMOUNT },
{ USB_DEVICE(0x2040, 0x1800),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_OKEMO_A },
{ USB_DEVICE(0x2040, 0x1801),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_OKEMO_B },
{ USB_DEVICE(0x2040, 0x2000),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
{ USB_DEVICE(0x2040, 0x2009),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD_R2 },
{ USB_DEVICE(0x2040, 0x200a),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
{ USB_DEVICE(0x2040, 0x2010),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
{ USB_DEVICE(0x2040, 0x2011),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
{ USB_DEVICE(0x2040, 0x2019),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
{ USB_DEVICE(0x2040, 0x5500),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ USB_DEVICE(0x2040, 0x5510),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ USB_DEVICE(0x2040, 0x5520),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ USB_DEVICE(0x2040, 0x5530),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ USB_DEVICE(0x2040, 0x5580),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ USB_DEVICE(0x2040, 0x5590),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ USB_DEVICE(0x187f, 0x0202),
.driver_info = SMS1XXX_BOARD_SIANO_NICE },
{ USB_DEVICE(0x187f, 0x0301),
.driver_info = SMS1XXX_BOARD_SIANO_VENICE },
{ USB_DEVICE(0x2040, 0xb900),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ USB_DEVICE(0x2040, 0xb910),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ USB_DEVICE(0x2040, 0xb980),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ USB_DEVICE(0x2040, 0xb990),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ USB_DEVICE(0x2040, 0xc000),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ USB_DEVICE(0x2040, 0xc010),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ USB_DEVICE(0x2040, 0xc080),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ USB_DEVICE(0x2040, 0xc090),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, smsusb_id_table);
static struct usb_driver smsusb_driver = {
.name = "smsusb",
.probe = smsusb_probe,
.disconnect = smsusb_disconnect,
.id_table = smsusb_id_table,
.suspend = smsusb_suspend,
.resume = smsusb_resume,
};
static int __init smsusb_module_init(void)
{
int rc = usb_register(&smsusb_driver);
if (rc)
sms_err("usb_register failed. Error number %d", rc);
sms_debug("");
return rc;
}
static void __exit smsusb_module_exit(void)
{
/* Regular USB Cleanup */
usb_deregister(&smsusb_driver);
sms_info("end");
}
module_init(smsusb_module_init);
module_exit(smsusb_module_exit);
MODULE_DESCRIPTION("Driver for the Siano SMS1xxx USB dongle");
MODULE_AUTHOR("Siano Mobile Silicon, INC. (uris@siano-ms.com)");
MODULE_LICENSE("GPL");
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