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add sdvo debugging output

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This commit is contained in:
David Airlie 2007-04-10 16:49:36 +10:00
parent b9c7fa55e2
commit 50672adb31
1 changed files with 33 additions and 0 deletions
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33
linux-core/intel_sdvo.c
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@ -209,11 +209,30 @@ static void intel_sdvo_write_cmd(struct drm_output *output, u8 cmd,
void *args, int args_len)
{
struct intel_output *intel_output = output->driver_private;
struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
int i;
if (1) {
printk("%s: W: %02X ", SDVO_NAME(sdvo_priv), cmd);
for (i = 0; i < args_len; i++)
printk("%02X ", ((u8 *)args)[i]);
for (; i < 8; i++)
printk(" ");
for (i = 0; i < sizeof(sdvo_cmd_names) / sizeof(sdvo_cmd_names[0]); i++) {
if (cmd == sdvo_cmd_names[i].cmd) {
printk("(%s)", sdvo_cmd_names[i].name);
break;
}
}
if (i == sizeof(sdvo_cmd_names)/ sizeof(sdvo_cmd_names[0]))
printk("(%02X)",cmd);
printk("\n");
}
for (i = 0; i < args_len; i++) {
intel_sdvo_write_byte(output, SDVO_I2C_ARG_0 - i, ((u8*)args)[i]);
}
intel_sdvo_write_byte(output, SDVO_I2C_OPCODE, cmd);
}
@ -230,6 +249,8 @@ static const char *cmd_status_names[] = {
static u8 intel_sdvo_read_response(struct drm_output *output, void *response,
int response_len)
{
struct intel_output *intel_output = output->driver_private;
struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
int i;
u8 status;
@ -242,6 +263,18 @@ static u8 intel_sdvo_read_response(struct drm_output *output, void *response,
/* read the return status */
intel_sdvo_read_byte(output, SDVO_I2C_CMD_STATUS, &status);
if (1) {
printk("%s: R: ", SDVO_NAME(sdvo_priv));
for (i = 0; i < response_len; i++)
printk("%02X ", ((u8 *)response)[i]);
for (; i < 8; i++)
printk(" ");
if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP)
printk("(%s)", cmd_status_names[status]);
else
printk("(??? %d)", status);
printk("\n");
}
return status;
}