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[media] siano: call MSG_SMS_INIT_DEVICE_REQ 

Newer firmwares seem to require an init device message. Apply
such change from Doron Cohen's patch:
	http://patchwork.linuxtv.org/patch/7889/

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
hifive-unleashed-5.1
Mauro Carvalho Chehab 2013-03-09 10:24:38 -03:00
parent dfbf021c9e
commit fe802fd92d
1 changed files with 42 additions and 1 deletions
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43
drivers/media/common/siano/smscoreapi.c
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@ -1278,6 +1278,42 @@ static char *smscore_get_fw_filename(struct smscore_device_t *coredev,
return fw[mode];
}
/**
* send init device request and wait for response
*
* @param coredev pointer to a coredev object returned by
* smscore_register_device
* @param mode requested mode of operation
*
* @return 0 on success, <0 on error.
*/
int smscore_init_device(struct smscore_device_t *coredev, int mode)
{
void *buffer;
struct SmsMsgData_ST *msg;
int rc = 0;
buffer = kmalloc(sizeof(struct SmsMsgData_ST) +
SMS_DMA_ALIGNMENT, GFP_KERNEL | GFP_DMA);
if (!buffer) {
sms_err("Could not allocate buffer for init device message.");
return -ENOMEM;
}
msg = (struct SmsMsgData_ST *)SMS_ALIGN_ADDRESS(buffer);
SMS_INIT_MSG(&msg->xMsgHeader, MSG_SMS_INIT_DEVICE_REQ,
sizeof(struct SmsMsgData_ST));
msg->msgData[0] = mode;
smsendian_handle_tx_message((struct SmsMsgHdr_ST *)msg);
rc = smscore_sendrequest_and_wait(coredev, msg,
msg->xMsgHeader. msgLength,
&coredev->init_device_done);
kfree(buffer);
return rc;
}
/**
* calls device handler to change mode of operation
* NOTE: stellar/usb may disconnect when changing mode
@ -1340,8 +1376,13 @@ int smscore_set_device_mode(struct smscore_device_t *coredev, int mode)
sms_info("mode %d is already supported by running firmware",
mode);
}
if (coredev->fw_version >= 0x800) {
rc = smscore_init_device(coredev, mode);
if (rc < 0)
sms_err("device init failed, rc %d.", rc);
}
} else {
if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_DVBT_BDA) {
if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_MAX) {
sms_err("invalid mode specified %d", mode);
return -EINVAL;
}