drm/radeon/kms: get HPD info for connectors
This populates the connectors with HPD (Hot Plug Detect)
information. This will be used in subsequent patches
for automatic digital monitor connect/disconnect handling.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 87bf6b9..d7b0feb 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -47,7 +47,8 @@
int connector_type,
struct radeon_i2c_bus_rec *i2c_bus,
bool linkb, uint32_t igp_lane_info,
- uint16_t connector_object_id);
+ uint16_t connector_object_id,
+ struct radeon_hpd *hpd);
/* from radeon_legacy_encoder.c */
extern void
@@ -60,10 +61,9 @@
struct _ATOM_SUPPORTED_DEVICES_INFO_2d1 info_2d1;
};
-static inline struct radeon_i2c_bus_rec radeon_lookup_gpio(struct drm_device *dev,
- uint8_t id)
+static inline struct radeon_i2c_bus_rec radeon_lookup_i2c_gpio(struct radeon_device *rdev,
+ uint8_t id)
{
- struct radeon_device *rdev = dev->dev_private;
struct atom_context *ctx = rdev->mode_info.atom_context;
ATOM_GPIO_I2C_ASSIGMENT *gpio;
struct radeon_i2c_bus_rec i2c;
@@ -114,11 +114,80 @@
return i2c;
}
+static inline struct radeon_gpio_rec radeon_lookup_gpio(struct radeon_device *rdev,
+ u8 id)
+{
+ struct atom_context *ctx = rdev->mode_info.atom_context;
+ struct radeon_gpio_rec gpio;
+ int index = GetIndexIntoMasterTable(DATA, GPIO_Pin_LUT);
+ struct _ATOM_GPIO_PIN_LUT *gpio_info;
+ ATOM_GPIO_PIN_ASSIGNMENT *pin;
+ u16 data_offset, size;
+ int i, num_indices;
+
+ memset(&gpio, 0, sizeof(struct radeon_gpio_rec));
+ gpio.valid = false;
+
+ atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset);
+
+ gpio_info = (struct _ATOM_GPIO_PIN_LUT *)(ctx->bios + data_offset);
+
+ num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) / sizeof(ATOM_GPIO_PIN_ASSIGNMENT);
+
+ for (i = 0; i < num_indices; i++) {
+ pin = &gpio_info->asGPIO_Pin[i];
+ if (id == pin->ucGPIO_ID) {
+ gpio.id = pin->ucGPIO_ID;
+ gpio.reg = pin->usGpioPin_AIndex * 4;
+ gpio.mask = (1 << pin->ucGpioPinBitShift);
+ gpio.valid = true;
+ break;
+ }
+ }
+
+ return gpio;
+}
+
+static struct radeon_hpd radeon_atom_get_hpd_info_from_gpio(struct radeon_device *rdev,
+ struct radeon_gpio_rec *gpio)
+{
+ struct radeon_hpd hpd;
+ hpd.gpio = *gpio;
+ if (gpio->reg == AVIVO_DC_GPIO_HPD_A) {
+ switch(gpio->mask) {
+ case (1 << 0):
+ hpd.hpd = RADEON_HPD_1;
+ break;
+ case (1 << 8):
+ hpd.hpd = RADEON_HPD_2;
+ break;
+ case (1 << 16):
+ hpd.hpd = RADEON_HPD_3;
+ break;
+ case (1 << 24):
+ hpd.hpd = RADEON_HPD_4;
+ break;
+ case (1 << 26):
+ hpd.hpd = RADEON_HPD_5;
+ break;
+ case (1 << 28):
+ hpd.hpd = RADEON_HPD_6;
+ break;
+ default:
+ hpd.hpd = RADEON_HPD_NONE;
+ break;
+ }
+ } else
+ hpd.hpd = RADEON_HPD_NONE;
+ return hpd;
+}
+
static bool radeon_atom_apply_quirks(struct drm_device *dev,
uint32_t supported_device,
int *connector_type,
struct radeon_i2c_bus_rec *i2c_bus,
- uint16_t *line_mux)
+ uint16_t *line_mux,
+ struct radeon_hpd *hpd)
{
/* Asus M2A-VM HDMI board lists the DVI port as HDMI */
@@ -279,16 +348,19 @@
struct radeon_mode_info *mode_info = &rdev->mode_info;
struct atom_context *ctx = mode_info->atom_context;
int index = GetIndexIntoMasterTable(DATA, Object_Header);
- uint16_t size, data_offset;
- uint8_t frev, crev, line_mux = 0;
+ u16 size, data_offset;
+ u8 frev, crev;
ATOM_CONNECTOR_OBJECT_TABLE *con_obj;
ATOM_DISPLAY_OBJECT_PATH_TABLE *path_obj;
ATOM_OBJECT_HEADER *obj_header;
int i, j, path_size, device_support;
int connector_type;
- uint16_t igp_lane_info, conn_id, connector_object_id;
+ u16 igp_lane_info, conn_id, connector_object_id;
bool linkb;
struct radeon_i2c_bus_rec ddc_bus;
+ struct radeon_gpio_rec gpio;
+ struct radeon_hpd hpd;
+
atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset);
if (data_offset == 0)
@@ -414,10 +486,9 @@
}
}
- /* look up gpio for ddc */
+ /* look up gpio for ddc, hpd */
if ((le16_to_cpu(path->usDeviceTag) &
- (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT))
- == 0) {
+ (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT)) == 0) {
for (j = 0; j < con_obj->ucNumberOfObjects; j++) {
if (le16_to_cpu(path->usConnObjectId) ==
le16_to_cpu(con_obj->asObjects[j].
@@ -431,21 +502,31 @@
asObjects[j].
usRecordOffset));
ATOM_I2C_RECORD *i2c_record;
+ ATOM_HPD_INT_RECORD *hpd_record;
+ hpd.hpd = RADEON_HPD_NONE;
while (record->ucRecordType > 0
&& record->
ucRecordType <=
ATOM_MAX_OBJECT_RECORD_NUMBER) {
- switch (record->
- ucRecordType) {
+ switch (record->ucRecordType) {
case ATOM_I2C_RECORD_TYPE:
i2c_record =
- (ATOM_I2C_RECORD
- *) record;
- line_mux =
- i2c_record->
- sucI2cId.
- bfI2C_LineMux;
+ (ATOM_I2C_RECORD *)
+ record;
+ ddc_bus = radeon_lookup_i2c_gpio(rdev,
+ i2c_record->
+ sucI2cId.
+ bfI2C_LineMux);
+ break;
+ case ATOM_HPD_INT_RECORD_TYPE:
+ hpd_record =
+ (ATOM_HPD_INT_RECORD *)
+ record;
+ gpio = radeon_lookup_gpio(rdev,
+ hpd_record->ucHPDIntGPIOID);
+ hpd = radeon_atom_get_hpd_info_from_gpio(rdev, &gpio);
+ hpd.plugged_state = hpd_record->ucPlugged_PinState;
break;
}
record =
@@ -458,24 +539,16 @@
break;
}
}
- } else
- line_mux = 0;
-
- if ((le16_to_cpu(path->usDeviceTag) ==
- ATOM_DEVICE_TV1_SUPPORT)
- || (le16_to_cpu(path->usDeviceTag) ==
- ATOM_DEVICE_TV2_SUPPORT)
- || (le16_to_cpu(path->usDeviceTag) ==
- ATOM_DEVICE_CV_SUPPORT))
+ } else {
+ hpd.hpd = RADEON_HPD_NONE;
ddc_bus.valid = false;
- else
- ddc_bus = radeon_lookup_gpio(dev, line_mux);
+ }
conn_id = le16_to_cpu(path->usConnObjectId);
if (!radeon_atom_apply_quirks
(dev, le16_to_cpu(path->usDeviceTag), &connector_type,
- &ddc_bus, &conn_id))
+ &ddc_bus, &conn_id, &hpd))
continue;
radeon_add_atom_connector(dev,
@@ -484,7 +557,8 @@
usDeviceTag),
connector_type, &ddc_bus,
linkb, igp_lane_info,
- connector_object_id);
+ connector_object_id,
+ &hpd);
}
}
@@ -539,6 +613,7 @@
uint16_t devices;
int connector_type;
struct radeon_i2c_bus_rec ddc_bus;
+ struct radeon_hpd hpd;
};
bool radeon_get_atom_connector_info_from_supported_devices_table(struct
@@ -554,7 +629,7 @@
uint16_t device_support;
uint8_t dac;
union atom_supported_devices *supported_devices;
- int i, j;
+ int i, j, max_device;
struct bios_connector bios_connectors[ATOM_MAX_SUPPORTED_DEVICE];
atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset);
@@ -564,7 +639,12 @@
device_support = le16_to_cpu(supported_devices->info.usDeviceSupport);
- for (i = 0; i < ATOM_MAX_SUPPORTED_DEVICE; i++) {
+ if (frev > 1)
+ max_device = ATOM_MAX_SUPPORTED_DEVICE;
+ else
+ max_device = ATOM_MAX_SUPPORTED_DEVICE_INFO;
+
+ for (i = 0; i < max_device; i++) {
ATOM_CONNECTOR_INFO_I2C ci =
supported_devices->info.asConnInfo[i];
@@ -619,8 +699,30 @@
bios_connectors[i].line_mux = 52;
} else
bios_connectors[i].ddc_bus =
- radeon_lookup_gpio(dev,
- bios_connectors[i].line_mux);
+ radeon_lookup_i2c_gpio(rdev,
+ bios_connectors[i].line_mux);
+
+ if ((crev > 1) && (frev > 1)) {
+ u8 isb = supported_devices->info_2d1.asIntSrcInfo[i].ucIntSrcBitmap;
+ switch (isb) {
+ case 0x4:
+ bios_connectors[i].hpd.hpd = RADEON_HPD_1;
+ break;
+ case 0xa:
+ bios_connectors[i].hpd.hpd = RADEON_HPD_2;
+ break;
+ default:
+ bios_connectors[i].hpd.hpd = RADEON_HPD_NONE;
+ break;
+ }
+ } else {
+ if (i == ATOM_DEVICE_DFP1_INDEX)
+ bios_connectors[i].hpd.hpd = RADEON_HPD_1;
+ else if (i == ATOM_DEVICE_DFP2_INDEX)
+ bios_connectors[i].hpd.hpd = RADEON_HPD_2;
+ else
+ bios_connectors[i].hpd.hpd = RADEON_HPD_NONE;
+ }
/* Always set the connector type to VGA for CRT1/CRT2. if they are
* shared with a DVI port, we'll pick up the DVI connector when we
@@ -632,7 +734,8 @@
if (!radeon_atom_apply_quirks
(dev, (1 << i), &bios_connectors[i].connector_type,
- &bios_connectors[i].ddc_bus, &bios_connectors[i].line_mux))
+ &bios_connectors[i].ddc_bus, &bios_connectors[i].line_mux,
+ &bios_connectors[i].hpd))
continue;
bios_connectors[i].valid = true;
@@ -654,9 +757,9 @@
}
/* combine shared connectors */
- for (i = 0; i < ATOM_MAX_SUPPORTED_DEVICE; i++) {
+ for (i = 0; i < max_device; i++) {
if (bios_connectors[i].valid) {
- for (j = 0; j < ATOM_MAX_SUPPORTED_DEVICE; j++) {
+ for (j = 0; j < max_device; j++) {
if (bios_connectors[j].valid && (i != j)) {
if (bios_connectors[i].line_mux ==
bios_connectors[j].line_mux) {
@@ -680,6 +783,10 @@
bios_connectors[i].
connector_type =
DRM_MODE_CONNECTOR_DVII;
+ if (bios_connectors[j].devices &
+ (ATOM_DEVICE_DFP_SUPPORT))
+ bios_connectors[i].hpd =
+ bios_connectors[j].hpd;
bios_connectors[j].
valid = false;
}
@@ -690,7 +797,7 @@
}
/* add the connectors */
- for (i = 0; i < ATOM_MAX_SUPPORTED_DEVICE; i++) {
+ for (i = 0; i < max_device; i++) {
if (bios_connectors[i].valid) {
uint16_t connector_object_id =
atombios_get_connector_object_id(dev,
@@ -703,7 +810,8 @@
connector_type,
&bios_connectors[i].ddc_bus,
false, 0,
- connector_object_id);
+ connector_object_id,
+ &bios_connectors[i].hpd);
}
}