aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/i915/intel_sdvo.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/i915/intel_sdvo.c')
-rw-r--r--drivers/gpu/drm/i915/intel_sdvo.c110
1 files changed, 75 insertions, 35 deletions
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 3093b4d4a4dd..9a00adb3a508 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -36,7 +36,7 @@
#include "intel_sdvo_regs.h"
#undef SDVO_DEBUG
-
+#define I915_SDVO "i915_sdvo"
struct intel_sdvo_priv {
struct intel_i2c_chan *i2c_bus;
int slaveaddr;
@@ -277,20 +277,21 @@ static void intel_sdvo_debug_write(struct intel_output *intel_output, u8 cmd,
struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
int i;
- printk(KERN_DEBUG "%s: W: %02X ", SDVO_NAME(sdvo_priv), cmd);
+ DRM_DEBUG_KMS(I915_SDVO, "%s: W: %02X ",
+ SDVO_NAME(sdvo_priv), cmd);
for (i = 0; i < args_len; i++)
- printk(KERN_DEBUG "%02X ", ((u8 *)args)[i]);
+ DRM_LOG_KMS("%02X ", ((u8 *)args)[i]);
for (; i < 8; i++)
- printk(KERN_DEBUG " ");
+ DRM_LOG_KMS(" ");
for (i = 0; i < sizeof(sdvo_cmd_names) / sizeof(sdvo_cmd_names[0]); i++) {
if (cmd == sdvo_cmd_names[i].cmd) {
- printk(KERN_DEBUG "(%s)", sdvo_cmd_names[i].name);
+ DRM_LOG_KMS("(%s)", sdvo_cmd_names[i].name);
break;
}
}
if (i == sizeof(sdvo_cmd_names)/ sizeof(sdvo_cmd_names[0]))
- printk(KERN_DEBUG "(%02X)", cmd);
- printk(KERN_DEBUG "\n");
+ DRM_LOG_KMS("(%02X)", cmd);
+ DRM_LOG_KMS("\n");
}
#else
#define intel_sdvo_debug_write(o, c, a, l)
@@ -329,16 +330,16 @@ static void intel_sdvo_debug_response(struct intel_output *intel_output,
struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
int i;
- printk(KERN_DEBUG "%s: R: ", SDVO_NAME(sdvo_priv));
+ DRM_DEBUG_KMS(I915_SDVO, "%s: R: ", SDVO_NAME(sdvo_priv));
for (i = 0; i < response_len; i++)
- printk(KERN_DEBUG "%02X ", ((u8 *)response)[i]);
+ DRM_LOG_KMS("%02X ", ((u8 *)response)[i]);
for (; i < 8; i++)
- printk(KERN_DEBUG " ");
+ DRM_LOG_KMS(" ");
if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP)
- printk(KERN_DEBUG "(%s)", cmd_status_names[status]);
+ DRM_LOG_KMS("(%s)", cmd_status_names[status]);
else
- printk(KERN_DEBUG "(??? %d)", status);
- printk(KERN_DEBUG "\n");
+ DRM_LOG_KMS("(??? %d)", status);
+ DRM_LOG_KMS("\n");
}
#else
#define intel_sdvo_debug_response(o, r, l, s)
@@ -1742,6 +1743,43 @@ static struct i2c_algorithm intel_sdvo_i2c_bit_algo = {
.master_xfer = intel_sdvo_master_xfer,
};
+static u8
+intel_sdvo_get_slave_addr(struct drm_device *dev, int output_device)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct sdvo_device_mapping *my_mapping, *other_mapping;
+
+ if (output_device == SDVOB) {
+ my_mapping = &dev_priv->sdvo_mappings[0];
+ other_mapping = &dev_priv->sdvo_mappings[1];
+ } else {
+ my_mapping = &dev_priv->sdvo_mappings[1];
+ other_mapping = &dev_priv->sdvo_mappings[0];
+ }
+
+ /* If the BIOS described our SDVO device, take advantage of it. */
+ if (my_mapping->slave_addr)
+ return my_mapping->slave_addr;
+
+ /* If the BIOS only described a different SDVO device, use the
+ * address that it isn't using.
+ */
+ if (other_mapping->slave_addr) {
+ if (other_mapping->slave_addr == 0x70)
+ return 0x72;
+ else
+ return 0x70;
+ }
+
+ /* No SDVO device info is found for another DVO port,
+ * so use mapping assumption we had before BIOS parsing.
+ */
+ if (output_device == SDVOB)
+ return 0x70;
+ else
+ return 0x72;
+}
+
bool intel_sdvo_init(struct drm_device *dev, int output_device)
{
struct drm_connector *connector;
@@ -1753,6 +1791,7 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
u8 ch[0x40];
int i;
int encoder_type, output_id;
+ u8 slave_addr;
intel_output = kcalloc(sizeof(struct intel_output)+sizeof(struct intel_sdvo_priv), 1, GFP_KERNEL);
if (!intel_output) {
@@ -1771,16 +1810,15 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
if (!i2cbus)
goto err_inteloutput;
+ slave_addr = intel_sdvo_get_slave_addr(dev, output_device);
sdvo_priv->i2c_bus = i2cbus;
if (output_device == SDVOB) {
output_id = 1;
- sdvo_priv->i2c_bus->slave_addr = 0x38;
} else {
output_id = 2;
- sdvo_priv->i2c_bus->slave_addr = 0x39;
}
-
+ sdvo_priv->i2c_bus->slave_addr = slave_addr >> 1;
sdvo_priv->output_device = output_device;
intel_output->i2c_bus = i2cbus;
intel_output->dev_priv = sdvo_priv;
@@ -1788,8 +1826,9 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
/* Read the regs to test if we can talk to the device */
for (i = 0; i < 0x40; i++) {
if (!intel_sdvo_read_byte(intel_output, i, &ch[i])) {
- DRM_DEBUG("No SDVO device found on SDVO%c\n",
- output_device == SDVOB ? 'B' : 'C');
+ DRM_DEBUG_KMS(I915_SDVO,
+ "No SDVO device found on SDVO%c\n",
+ output_device == SDVOB ? 'B' : 'C');
goto err_i2c;
}
}
@@ -1873,9 +1912,10 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
sdvo_priv->controlled_output = 0;
memcpy (bytes, &sdvo_priv->caps.output_flags, 2);
- DRM_DEBUG("%s: Unknown SDVO output type (0x%02x%02x)\n",
- SDVO_NAME(sdvo_priv),
- bytes[0], bytes[1]);
+ DRM_DEBUG_KMS(I915_SDVO,
+ "%s: Unknown SDVO output type (0x%02x%02x)\n",
+ SDVO_NAME(sdvo_priv),
+ bytes[0], bytes[1]);
encoder_type = DRM_MODE_ENCODER_NONE;
connector_type = DRM_MODE_CONNECTOR_Unknown;
goto err_i2c;
@@ -1905,21 +1945,21 @@ bool intel_sdvo_init(struct drm_device *dev, int output_device)
&sdvo_priv->pixel_clock_max);
- DRM_DEBUG("%s device VID/DID: %02X:%02X.%02X, "
- "clock range %dMHz - %dMHz, "
- "input 1: %c, input 2: %c, "
- "output 1: %c, output 2: %c\n",
- SDVO_NAME(sdvo_priv),
- sdvo_priv->caps.vendor_id, sdvo_priv->caps.device_id,
- sdvo_priv->caps.device_rev_id,
- sdvo_priv->pixel_clock_min / 1000,
- sdvo_priv->pixel_clock_max / 1000,
- (sdvo_priv->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
- (sdvo_priv->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
- /* check currently supported outputs */
- sdvo_priv->caps.output_flags &
+ DRM_DEBUG_KMS(I915_SDVO, "%s device VID/DID: %02X:%02X.%02X, "
+ "clock range %dMHz - %dMHz, "
+ "input 1: %c, input 2: %c, "
+ "output 1: %c, output 2: %c\n",
+ SDVO_NAME(sdvo_priv),
+ sdvo_priv->caps.vendor_id, sdvo_priv->caps.device_id,
+ sdvo_priv->caps.device_rev_id,
+ sdvo_priv->pixel_clock_min / 1000,
+ sdvo_priv->pixel_clock_max / 1000,
+ (sdvo_priv->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
+ (sdvo_priv->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
+ /* check currently supported outputs */
+ sdvo_priv->caps.output_flags &
(SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0) ? 'Y' : 'N',
- sdvo_priv->caps.output_flags &
+ sdvo_priv->caps.output_flags &
(SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
return true;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.