From 7558977a4ade512648bdfcc5f74dfffd7511d46f Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sun, 10 Jul 2011 13:25:48 -0300 Subject: [media] drxk: Improve the scu_command error message Now, it outputs: [10927.639641] drxk: SCU_RESULT_INVPAR while sending cmd 0x0203 with params: [10927.646283] drxk: 02 00 00 00 10 00 07 00 03 02 .......... Better than ERROR -3. This happens with Terratec H5 firmware. It adds 2 new error conditions, and something useful to track what the heck is that. I suspect that the scu_command is dependent on the firmware revision. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/drxk_hard.c | 43 +++++++++++++++++++-------------- 1 file changed, 25 insertions(+), 18 deletions(-) (limited to 'drivers/media/dvb/frontends/drxk_hard.c') diff --git a/drivers/media/dvb/frontends/drxk_hard.c b/drivers/media/dvb/frontends/drxk_hard.c index bb8627ffae73..5745f526f391 100644 --- a/drivers/media/dvb/frontends/drxk_hard.c +++ b/drivers/media/dvb/frontends/drxk_hard.c @@ -1521,6 +1521,8 @@ static int scu_command(struct drxk_state *state, unsigned long end; u8 buffer[34]; int cnt = 0, ii; + const char *p; + char errname[30]; dprintk(1, "\n"); @@ -1567,31 +1569,36 @@ static int scu_command(struct drxk_state *state, /* Check if an error was reported by SCU */ err = (s16)result[0]; + if (err >= 0) + goto error; - /* check a few fixed error codes */ - if (err == SCU_RESULT_UNKSTD) { - printk(KERN_ERR "drxk: SCU_RESULT_UNKSTD\n"); - status = -EINVAL; - goto error2; - } else if (err == SCU_RESULT_UNKCMD) { - printk(KERN_ERR "drxk: SCU_RESULT_UNKCMD\n"); - status = -EINVAL; - goto error2; - } else if (err < 0) { - /* - * here it is assumed that a nagative result means - * error, and positive no error - */ - printk(KERN_ERR "drxk: %s ERROR: %d\n", __func__, err); - status = -EINVAL; - goto error2; + /* check for the known error codes */ + switch (err) { + case SCU_RESULT_UNKCMD: + p = "SCU_RESULT_UNKCMD"; + break; + case SCU_RESULT_UNKSTD: + p = "SCU_RESULT_UNKSTD"; + break; + case SCU_RESULT_SIZE: + p = "SCU_RESULT_SIZE"; + break; + case SCU_RESULT_INVPAR: + p = "SCU_RESULT_INVPAR"; + break; + default: /* Other negative values are errors */ + sprintf(errname, "ERROR: %d\n", err); + p = errname; } + printk(KERN_ERR "drxk: %s while sending cmd 0x%04x with params:", p, cmd); + print_hex_dump_bytes("drxk: ", DUMP_PREFIX_NONE, buffer, cnt); + status = -EINVAL; + goto error2; } error: if (status < 0) printk(KERN_ERR "drxk: Error %d on %s\n", status, __func__); - error2: mutex_unlock(&state->mutex); return status; -- cgit v1.2.1