diff options
| author | Dean Anderson <linux-dev@sensoray.com> | 2010-04-12 18:05:37 (GMT) |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-05-19 15:57:48 (GMT) |
| commit | eb78deecb496a8b0888d24f1cfa73f6e907b82e2 (patch) | |
| tree | 30065068a2392064d276ad1d24b2fc38a488b1b7 /drivers | |
| parent | b187913c77adbd865194c6b8072764e3474d56ea (diff) | |
| download | linux-eb78deecb496a8b0888d24f1cfa73f6e907b82e2.tar.xz | |
V4L/DVB: s2255drv: firmware reload on timeout
Signed-off-by: Dean Anderson <linux-dev@sensoray.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/s2255drv.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c index 4dc001b..ac9c40c 100644 --- a/drivers/media/video/s2255drv.c +++ b/drivers/media/video/s2255drv.c @@ -58,7 +58,7 @@ #include <linux/usb.h> #define S2255_MAJOR_VERSION 1 -#define S2255_MINOR_VERSION 19 +#define S2255_MINOR_VERSION 20 #define S2255_RELEASE 0 #define S2255_VERSION KERNEL_VERSION(S2255_MAJOR_VERSION, \ S2255_MINOR_VERSION, \ @@ -1755,7 +1755,7 @@ static int s2255_open(struct file *file) == S2255_FW_SUCCESS) || (atomic_read(&dev->fw_data->fw_state) == S2255_FW_DISCONNECTING)), - msecs_to_jiffies(S2255_LOAD_TIMEOUT)); + msecs_to_jiffies(S2255_LOAD_TIMEOUT)); /* state may have changed, re-read */ state = atomic_read(&dev->fw_data->fw_state); break; @@ -1763,27 +1763,38 @@ static int s2255_open(struct file *file) default: break; } - mutex_unlock(&dev->open_lock); /* state may have changed in above switch statement */ switch (state) { case S2255_FW_SUCCESS: break; case S2255_FW_FAILED: printk(KERN_INFO "2255 firmware load failed.\n"); + mutex_unlock(&dev->open_lock); return -ENODEV; case S2255_FW_DISCONNECTING: printk(KERN_INFO "%s: disconnecting\n", __func__); + mutex_unlock(&dev->open_lock); return -ENODEV; case S2255_FW_LOADED_DSPWAIT: case S2255_FW_NOTLOADED: printk(KERN_INFO "%s: firmware not loaded yet" "please try again later\n", __func__); + /* + * Timeout on firmware load means device unusable. + * Set firmware failure state. + * On next s2255_open the firmware will be reloaded. + */ + atomic_set(&dev->fw_data->fw_state, + S2255_FW_FAILED); + mutex_unlock(&dev->open_lock); return -EAGAIN; default: printk(KERN_INFO "%s: unknown state\n", __func__); + mutex_unlock(&dev->open_lock); return -EFAULT; } + mutex_unlock(&dev->open_lock); /* allocate + initialize per filehandle data */ fh = kzalloc(sizeof(*fh), GFP_KERNEL); if (NULL == fh) @@ -2074,7 +2085,6 @@ static int save_frame(struct s2255_dev *dev, struct s2255_pipeinfo *pipe_info) dprintk(5, "setmode ready %d\n", cc); break; case S2255_RESPONSE_FW: - dev->chn_ready |= (1 << cc); if ((dev->chn_ready & 0x0f) != 0x0f) break; |