From fe802fd92d6abd1fce2ae8d03a073807d25e9453 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sat, 9 Mar 2013 10:24:38 -0300 Subject: [PATCH] [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 --- drivers/media/common/siano/smscoreapi.c | 43 ++++++++++++++++++++++++- 1 file changed, 42 insertions(+), 1 deletion(-) diff --git a/drivers/media/common/siano/smscoreapi.c b/drivers/media/common/siano/smscoreapi.c index 6b53367f74dc..9379ea7f8152 100644 --- a/drivers/media/common/siano/smscoreapi.c +++ b/drivers/media/common/siano/smscoreapi.c @@ -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; } -- 2.39.5