On Tue, 7 Apr 2009 10:56:36 -0700 (PDT)
"Dean A." <d...@sensoray.com> wrote:
> From: Dean Anderson <d...@sensoray.com>
>
> This patch adds V4L2 video status capability and V4L2_MODE_HIGHQUALITY
> operation.
Hi Dean,
I have a few comments to add over Trent's one.
>
> Signed-off-by: Dean Anderson <d...@sensoray.com>
>
> --- v4l-dvb-1e670024659d/linux/drivers/media/video/s2255drv.c.orig
> 2009-04-07 10:38:42.000000000 -0700
> +++ v4l-dvb-1e670024659d/linux/drivers/media/video/s2255drv.c 2009-04-07
> 10:42:51.000000000 -0700
> @@ -57,7 +57,8 @@
>
> #define FIRMWARE_FILE_NAME "f2255usb.bin"
>
> -
> +#define S2255_REV_MAJOR 1
> +#define S2255_REV_MINOR 20
>
> +
> #define S2255_MAJOR_VERSION 1
> #define S2255_MINOR_VERSION 13
Hmm... Why you need two different major/minor versions on your driver?
> @@ -1207,8 +1236,8 @@ static int s2255_set_mode(struct s2255_d
> struct s2255_mode *mode)
> {
> int res;
> - u32 *buffer;
> - unsigned long chn_rev;
> + __le32 *buffer;
> + u32 chn_rev;
Also, please don't mix more than one thing at the same patch. Clearly, you did
some endiannes fix at the same patch. Please split it into different patches.
> +static int s2255_cmd_status(struct s2255_dev *dev, unsigned long chn,
> + u32 *pstatus)
> +{
> + int res;
> + __le32 *buffer;
> + u32 chn_rev;
> +
> + mutex_lock(&dev->lock);
> + chn_rev = G_chnmap[chn];
> + dprintk(4, "s2255_get_status: chan %d\n", chn_rev);
> + buffer = kzalloc(512, GFP_KERNEL);
> + if (buffer == NULL) {
> + dev_err(&dev->udev->dev, "out of mem\n");
> + mutex_unlock(&dev->lock);
> + return -ENOMEM;
> + }
> + /* form the get vid status command */
> + buffer[0] = IN_DATA_TOKEN;
> + buffer[1] = cpu_to_le32(chn_rev);
> + buffer[2] = CMD_STATUS;
> + *pstatus = 0;
> + dev->vidstatus_ready[chn] = 0;
> + res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512);
> + kfree(buffer);
> + wait_event_timeout(dev->wait_vidstatus[chn],
> + (dev->vidstatus_ready[chn] != 0),
> + msecs_to_jiffies(S2255_VIDSTATUS_TIMEOUT));
> + if (dev->vidstatus_ready[chn] != 1) {
> + printk(KERN_DEBUG "s2255: no vidstatus response\n");
> + res = -EFAULT;
> + }
> + *pstatus = dev->vidstatus[chn];
> + dprintk(4, "s2255: vid status %d\n", *pstatus);
> + mutex_unlock(&dev->lock);
> + return res;
> +}
> +
Also, please split "high quality mode" from "video status querying". You should
provide one patch per different feature you're adding.
Cheers,
Mauro
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