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V4L/DVB (8311): sms1xxx: support device-specific firmware filenames on stellar usb1 sticks 

Add the capability to define device-specific firmware filenames for the SMS1010,
with a mechanism to fall back to the generic firmware if the device-specific
firmware is not present.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Michael Krufky 2008-07-01 04:35:26 -03:00 committed by Mauro Carvalho Chehab
parent b1d8f9f5b8
commit 1fbc3caff4
1 changed files with 25 additions and 7 deletions
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30
drivers/media/dvb/siano/smsusb.c
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@ -184,23 +184,40 @@ static char *smsusb1_fw_lkup[] = {
"dvbt_bda_stellar_usb.inp",
};
static int smsusb1_load_firmware(struct usb_device *udev, int id)
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;
}
rc = request_firmware(&fw, smsusb1_fw_lkup[id], &udev->dev);
fw_filename = sms_get_fw_name(id, board_id);
rc = request_firmware(&fw, fw_filename, &udev->dev);
if (rc < 0) {
sms_err("failed to open \"%s\" mode %d",
smsusb1_fw_lkup[id], id);
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) {
@ -216,7 +233,7 @@ static int smsusb1_load_firmware(struct usb_device *udev, int id)
sms_err("failed to allocate firmware buffer");
rc = -ENOMEM;
}
sms_info("read FW %s, size=%zd", smsusb1_fw_lkup[id], fw->size);
sms_info("read FW %s, size=%zd", fw_filename, fw->size);
release_firmware(fw);
@ -401,7 +418,8 @@ static int smsusb_probe(struct usb_interface *intf,
udev->bus->busnum, udev->devpath);
sms_info("stellar device was found.");
return smsusb1_load_firmware(
udev, smscore_registry_getmode(devpath));
udev, smscore_registry_getmode(devpath),
id->driver_info);
}
rc = smsusb_init_device(intf, id->driver_info);