forked from Minki/linux
drm/radeon/kms: initial radeon displayport porting
This is enough to retrieve EDID and DPCP. Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
parent
d904ef9b00
commit
746c1aa4d1
@ -49,7 +49,7 @@ radeon-y += radeon_device.o radeon_kms.o \
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radeon_cs.o radeon_bios.o radeon_benchmark.o r100.o r300.o r420.o \
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rs400.o rs600.o rs690.o rv515.o r520.o r600.o rv770.o radeon_test.o \
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r200.o radeon_legacy_tv.o r600_cs.o r600_blit.o r600_blit_shaders.o \
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r600_blit_kms.o radeon_pm.o
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r600_blit_kms.o radeon_pm.o atombios_dp.o
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radeon-$(CONFIG_COMPAT) += radeon_ioc32.o
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275
drivers/gpu/drm/radeon/atombios_dp.c
Normal file
275
drivers/gpu/drm/radeon/atombios_dp.c
Normal file
@ -0,0 +1,275 @@
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/*
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* Copyright 2007-8 Advanced Micro Devices, Inc.
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* Copyright 2008 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Dave Airlie
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* Alex Deucher
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*/
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#include "drmP.h"
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#include "radeon_drm.h"
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#include "radeon.h"
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#include "atom.h"
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#include "atom-bits.h"
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#include "drm_dp_helper.h"
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#define DP_LINK_STATUS_SIZE 6
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bool radeon_process_aux_ch(struct radeon_i2c_chan *chan, u8 *req_bytes,
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int num_bytes, u8 *read_byte,
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u8 read_buf_len, u8 delay)
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{
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struct drm_device *dev = chan->dev;
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struct radeon_device *rdev = dev->dev_private;
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PROCESS_AUX_CHANNEL_TRANSACTION_PS_ALLOCATION args;
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int index = GetIndexIntoMasterTable(COMMAND, ProcessAuxChannelTransaction);
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unsigned char *base;
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memset(&args, 0, sizeof(args));
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base = (unsigned char *)rdev->mode_info.atom_context->scratch;
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memcpy(base, req_bytes, num_bytes);
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args.lpAuxRequest = 0;
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args.lpDataOut = 16;
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args.ucDataOutLen = 0;
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args.ucChannelID = chan->i2c_id;
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args.ucDelay = delay;
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atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
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if (args.ucReplyStatus) {
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DRM_ERROR("failed to get auxch %02x%02x %02x %02x 0x%02x %02x\n",
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req_bytes[1], req_bytes[0], req_bytes[2], req_bytes[3],
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chan->i2c_id, args.ucReplyStatus);
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return false;
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}
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if (args.ucDataOutLen && read_byte && read_buf_len) {
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if (read_buf_len < args.ucDataOutLen) {
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DRM_ERROR("Buffer to small for return answer %d %d\n",
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read_buf_len, args.ucDataOutLen);
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return false;
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}
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{
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int len = min(read_buf_len, args.ucDataOutLen);
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memcpy(read_byte, base + 16, len);
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}
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}
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return true;
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}
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int radeon_dp_encoder_service(struct radeon_device *rdev, int action, int dp_clock,
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uint8_t ucconfig, uint8_t lane_num)
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{
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DP_ENCODER_SERVICE_PARAMETERS args;
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int index = GetIndexIntoMasterTable(COMMAND, DPEncoderService);
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memset(&args, 0, sizeof(args));
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args.ucLinkClock = dp_clock / 10;
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args.ucConfig = ucconfig;
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args.ucAction = action;
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args.ucLaneNum = lane_num;
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args.ucStatus = 0;
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atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
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return args.ucStatus;
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}
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int radeon_dp_getsinktype(struct radeon_connector *radeon_connector)
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{
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struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
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struct drm_device *dev = radeon_connector->base.dev;
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struct radeon_device *rdev = dev->dev_private;
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return radeon_dp_encoder_service(rdev, ATOM_DP_ACTION_GET_SINK_TYPE, 0,
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radeon_dig_connector->uc_i2c_id, 0);
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}
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union dig_transmitter_control {
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DIG_TRANSMITTER_CONTROL_PS_ALLOCATION v1;
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DIG_TRANSMITTER_CONTROL_PARAMETERS_V2 v2;
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};
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bool radeon_dp_aux_native_write(struct radeon_connector *radeon_connector, uint16_t address,
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uint8_t send_bytes, uint8_t *send)
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{
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struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
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struct drm_device *dev = radeon_connector->base.dev;
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struct radeon_device *rdev = dev->dev_private;
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u8 msg[20];
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u8 msg_len, dp_msg_len;
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bool ret;
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dp_msg_len = 4;
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msg[0] = address;
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msg[1] = address >> 8;
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msg[2] = AUX_NATIVE_WRITE << 4;
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dp_msg_len += send_bytes;
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msg[3] = (dp_msg_len << 4) | (send_bytes - 1);
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if (send_bytes > 16)
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return false;
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memcpy(&msg[4], send, send_bytes);
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msg_len = 4 + send_bytes;
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ret = radeon_process_aux_ch(radeon_dig_connector->dp_i2c_bus, msg, msg_len, NULL, 0, 0);
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return ret;
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}
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bool radeon_dp_aux_native_read(struct radeon_connector *radeon_connector, uint16_t address,
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uint8_t delay, uint8_t expected_bytes,
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uint8_t *read_p)
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{
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struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
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struct drm_device *dev = radeon_connector->base.dev;
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struct radeon_device *rdev = dev->dev_private;
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u8 msg[20];
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u8 msg_len, dp_msg_len;
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bool ret = false;
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msg_len = 4;
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dp_msg_len = 4;
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msg[0] = address;
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msg[1] = address >> 8;
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msg[2] = AUX_NATIVE_READ << 4;
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msg[3] = (dp_msg_len) << 4;
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msg[3] |= expected_bytes - 1;
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ret = radeon_process_aux_ch(radeon_dig_connector->dp_i2c_bus, msg, msg_len, read_p, expected_bytes, delay);
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return ret;
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}
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void radeon_dp_getdpcp(struct radeon_connector *radeon_connector)
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{
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struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
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u8 msg[25];
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int ret;
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ret = radeon_dp_aux_native_read(radeon_connector, DP_DPCP_REV, 0, 8, msg);
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if (ret) {
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memcpy(radeon_dig_connector->dpcp, msg, 8);
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{
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int i;
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printk("DPCP: ");
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for (i = 0; i < 8; i++)
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printk("%02x ", msg[i]);
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printk("\n");
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}
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}
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radeon_dig_connector->dpcp[0] = 0;
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return;
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}
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static bool atom_dp_get_link_status(struct radeon_connector *radeon_connector,
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u8 link_status[DP_LINK_STATUS_SIZE])
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{
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int ret;
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ret = radeon_dp_aux_native_read(radeon_connector, DP_LANE0_1_STATUS, 100,
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DP_LINK_STATUS_SIZE, link_status);
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if (!ret) {
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DRM_ERROR("displayport link status failed\n");
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return false;
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}
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DRM_INFO("link status %02x %02x %02x %02x %02x %02x\n",
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link_status[0], link_status[1], link_status[2],
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link_status[3], link_status[4], link_status[5]);
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return true;
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}
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static void dp_set_power(struct radeon_connector *radeon_connector, u8 power_state)
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{
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struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
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if (radeon_dig_connector->dpcp[0] >= 0x11) {
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radeon_dp_aux_native_write(radeon_connector, 0x600, 1,
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&power_state);
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}
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}
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static void dp_update_dpvs_emph(struct radeon_connector *radeon_connector,
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u8 train_set[4])
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{
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struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
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// radeon_dp_digtransmitter_setup_vsemph();
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radeon_dp_aux_native_write(radeon_connector, DP_TRAINING_LANE0_SET,
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0/* lc */, train_set);
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}
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static void dp_set_training(struct radeon_connector *radeon_connector,
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u8 training)
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{
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radeon_dp_aux_native_write(radeon_connector, DP_TRAINING_PATTERN_SET,
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1, &training);
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}
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int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
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uint8_t write_byte, uint8_t *read_byte)
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{
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struct i2c_algo_dp_aux_data *algo_data = adapter->algo_data;
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struct radeon_i2c_chan *auxch = (struct radeon_i2c_chan *)adapter;
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int ret = 0;
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uint16_t address = algo_data->address;
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uint8_t msg[5];
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uint8_t reply[2];
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int msg_len, dp_msg_len;
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int reply_bytes;
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/* Set up the command byte */
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if (mode & MODE_I2C_READ)
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msg[2] = AUX_I2C_READ << 4;
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else
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msg[2] = AUX_I2C_WRITE << 4;
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if (!(mode & MODE_I2C_STOP))
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msg[2] |= AUX_I2C_MOT << 4;
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msg[0] = address;
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msg[1] = address >> 8;
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reply_bytes = 1;
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msg_len = 4;
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dp_msg_len = 3;
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switch (mode) {
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case MODE_I2C_WRITE:
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msg[4] = write_byte;
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msg_len++;
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dp_msg_len += 2;
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break;
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case MODE_I2C_READ:
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dp_msg_len += 1;
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break;
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default:
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break;
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}
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msg[3] = (dp_msg_len) << 4;
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ret = radeon_process_aux_ch(auxch, msg, msg_len, reply, reply_bytes, 0);
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if (ret) {
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if (read_byte)
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*read_byte = reply[0];
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return reply_bytes;
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}
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return -EREMOTEIO;
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}
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@ -47,7 +47,7 @@ radeon_add_atom_connector(struct drm_device *dev,
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int connector_type,
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struct radeon_i2c_bus_rec *i2c_bus,
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bool linkb, uint32_t igp_lane_info,
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uint16_t connector_object_id);
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uint16_t connector_object_id, uint8_t uc_i2c_id);
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/* from radeon_legacy_encoder.c */
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extern void
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@ -60,8 +60,8 @@ union atom_supported_devices {
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struct _ATOM_SUPPORTED_DEVICES_INFO_2d1 info_2d1;
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};
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static inline struct radeon_i2c_bus_rec radeon_lookup_gpio(struct drm_device
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*dev, uint8_t id)
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static inline struct radeon_i2c_bus_rec radeon_lookup_gpio(struct drm_device *dev,
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uint8_t id)
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{
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struct radeon_device *rdev = dev->dev_private;
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struct atom_context *ctx = rdev->mode_info.atom_context;
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@ -276,7 +276,7 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
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uint16_t igp_lane_info, conn_id, connector_object_id;
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bool linkb;
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struct radeon_i2c_bus_rec ddc_bus;
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ATOM_I2C_ID_CONFIG_ACCESS i2c_id;
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atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset);
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if (data_offset == 0)
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@ -302,7 +302,7 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
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path = (ATOM_DISPLAY_OBJECT_PATH *) addr;
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path_size += le16_to_cpu(path->usSize);
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linkb = false;
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i2c_id.ucAccess = 0;
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if (device_support & le16_to_cpu(path->usDeviceTag)) {
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uint8_t con_obj_id, con_obj_num, con_obj_type;
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@ -420,7 +420,7 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
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asObjects[j].
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usRecordOffset));
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ATOM_I2C_RECORD *i2c_record;
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while (record->ucRecordType > 0
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&& record->
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ucRecordType <=
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@ -431,6 +431,7 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
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i2c_record =
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(ATOM_I2C_RECORD
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*) record;
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i2c_id.sbfAccess = i2c_record->sucI2cId;
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line_mux =
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i2c_record->
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sucI2cId.
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@ -473,7 +474,7 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
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usDeviceTag),
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connector_type, &ddc_bus,
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linkb, igp_lane_info,
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connector_object_id);
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connector_object_id, i2c_id.ucAccess);
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}
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}
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@ -692,7 +693,7 @@ bool radeon_get_atom_connector_info_from_supported_devices_table(struct
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connector_type,
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&bios_connectors[i].ddc_bus,
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false, 0,
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connector_object_id);
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connector_object_id, 0);
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}
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}
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@ -896,6 +896,54 @@ struct drm_connector_funcs radeon_dvi_connector_funcs = {
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.force = radeon_dvi_force,
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};
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static int radeon_dp_get_modes(struct drm_connector *connector)
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{
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struct radeon_connector *radeon_connector = to_radeon_connector(connector);
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int ret;
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ret = radeon_ddc_get_modes(radeon_connector);
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return ret;
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}
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static enum drm_connector_status radeon_dp_detect(struct drm_connector *connector)
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{
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struct radeon_connector *radeon_connector = to_radeon_connector(connector);
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struct drm_encoder *encoder = NULL;
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struct drm_encoder_helper_funcs *encoder_funcs;
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struct drm_mode_object *obj;
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int i;
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enum drm_connector_status ret = connector_status_disconnected;
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int sink_type;
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bool dret;
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if (radeon_connector->edid) {
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kfree(radeon_connector->edid);
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radeon_connector->edid = NULL;
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}
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sink_type = radeon_dp_getsinktype(radeon_connector);
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if (sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
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radeon_dp_getdpcp(radeon_connector);
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ret = connector_status_connected;
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}
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return ret;
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}
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struct drm_connector_helper_funcs radeon_dp_connector_helper_funcs = {
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.get_modes = radeon_dp_get_modes,
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.mode_valid = radeon_dvi_mode_valid,
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.best_encoder = radeon_dvi_encoder,
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};
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struct drm_connector_funcs radeon_dp_connector_funcs = {
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.dpms = drm_helper_connector_dpms,
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.detect = radeon_dp_detect,
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.fill_modes = drm_helper_probe_single_connector_modes,
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.set_property = radeon_connector_set_property,
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.destroy = radeon_connector_destroy,
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.force = radeon_dvi_force,
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};
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void
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radeon_add_atom_connector(struct drm_device *dev,
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uint32_t connector_id,
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@ -904,7 +952,7 @@ radeon_add_atom_connector(struct drm_device *dev,
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struct radeon_i2c_bus_rec *i2c_bus,
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bool linkb,
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uint32_t igp_lane_info,
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uint16_t connector_object_id)
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uint16_t connector_object_id, uint8_t uc_i2c_id)
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{
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struct radeon_device *rdev = dev->dev_private;
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struct drm_connector *connector;
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@ -1030,10 +1078,13 @@ radeon_add_atom_connector(struct drm_device *dev,
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radeon_dig_connector->linkb = linkb;
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radeon_dig_connector->igp_lane_info = igp_lane_info;
|
||||
radeon_connector->con_priv = radeon_dig_connector;
|
||||
drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
|
||||
ret = drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
|
||||
drm_connector_init(dev, &radeon_connector->base, &radeon_dp_connector_funcs, connector_type);
|
||||
ret = drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs);
|
||||
if (ret)
|
||||
goto failed;
|
||||
/* add DP i2c bus */
|
||||
radeon_dig_connector->uc_i2c_id = uc_i2c_id;
|
||||
radeon_dig_connector->dp_i2c_bus = radeon_i2c_create_dp(dev, "DP-auxch", true, uc_i2c_id);
|
||||
if (i2c_bus->valid) {
|
||||
radeon_connector->ddc_bus = radeon_i2c_create(dev, i2c_bus, "DP");
|
||||
if (!radeon_connector->ddc_bus)
|
||||
|
||||
@ -337,6 +337,13 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
if (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
|
||||
struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
|
||||
if (dig->dp_i2c_bus) {
|
||||
radeon_connector->edid = drm_get_edid(&radeon_connector->base, &dig->dp_i2c_bus->adapter);
|
||||
DRM_INFO("got edid %p from DP\n", radeon_connector->edid);
|
||||
}
|
||||
}
|
||||
if (!radeon_connector->ddc_bus)
|
||||
return -1;
|
||||
if (!radeon_connector->edid) {
|
||||
|
||||
@ -850,6 +850,99 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action)
|
||||
|
||||
}
|
||||
|
||||
static void
|
||||
atombios_dig_transmitter_setup_vsemph(struct drm_encoder *encoder, u8 lane_num,
|
||||
u8 lane_set)
|
||||
{
|
||||
struct drm_device *dev = encoder->dev;
|
||||
struct radeon_device *rdev = dev->dev_private;
|
||||
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
|
||||
union dig_transmitter_control args;
|
||||
int index = 0, num = 0;
|
||||
uint8_t frev, crev;
|
||||
struct radeon_encoder_atom_dig *dig;
|
||||
struct drm_connector *connector;
|
||||
struct radeon_connector *radeon_connector;
|
||||
struct radeon_connector_atom_dig *dig_connector;
|
||||
|
||||
connector = radeon_get_connector_for_encoder(encoder);
|
||||
if (!connector)
|
||||
return;
|
||||
|
||||
radeon_connector = to_radeon_connector(connector);
|
||||
|
||||
if (!radeon_encoder->enc_priv)
|
||||
return;
|
||||
|
||||
dig = radeon_encoder->enc_priv;
|
||||
|
||||
if (!radeon_connector->con_priv)
|
||||
return;
|
||||
|
||||
dig_connector = radeon_connector->con_priv;
|
||||
|
||||
memset(&args, 0, sizeof(args));
|
||||
|
||||
if (ASIC_IS_DCE32(rdev))
|
||||
index = GetIndexIntoMasterTable(COMMAND, UNIPHYTransmitterControl);
|
||||
else {
|
||||
switch (radeon_encoder->encoder_id) {
|
||||
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
|
||||
index = GetIndexIntoMasterTable(COMMAND, DIG1TransmitterControl);
|
||||
break;
|
||||
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
|
||||
index = GetIndexIntoMasterTable(COMMAND, DIG2TransmitterControl);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev);
|
||||
|
||||
args.v1.ucAction = ATOM_TRANSMITTER_ACTION_SETUP_VSEMPH;
|
||||
args.v1.asMode.ucLaneSel = lane_num;
|
||||
args.v1.asMode.ucLaneSet = lane_set;
|
||||
|
||||
if (ASIC_IS_DCE32(rdev)) {
|
||||
args.v2.acConfig.fDPConnector = 1;
|
||||
|
||||
if (dig->dig_block)
|
||||
args.v2.acConfig.ucEncoderSel = 1;
|
||||
|
||||
switch (radeon_encoder->encoder_id) {
|
||||
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
|
||||
args.v2.acConfig.ucTransmitterSel = 0;
|
||||
num = 0;
|
||||
break;
|
||||
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
|
||||
args.v2.acConfig.ucTransmitterSel = 1;
|
||||
num = 1;
|
||||
break;
|
||||
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
|
||||
args.v2.acConfig.ucTransmitterSel = 2;
|
||||
num = 2;
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
args.v1.ucConfig = ATOM_TRANSMITTER_CONFIG_CLKSRC_PPLL;
|
||||
|
||||
switch (radeon_encoder->encoder_id) {
|
||||
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
|
||||
args.v1.ucConfig |= ATOM_TRANSMITTER_CONFIG_DIG1_ENCODER;
|
||||
if (dig_connector->linkb)
|
||||
args.v1.ucConfig |= ATOM_TRANSMITTER_CONFIG_LINKB | ATOM_TRANSMITTER_CONFIG_LANE_0_3;
|
||||
else
|
||||
args.v1.ucConfig |= ATOM_TRANSMITTER_CONFIG_LINKA | ATOM_TRANSMITTER_CONFIG_LANE_0_3;
|
||||
}
|
||||
}
|
||||
|
||||
atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
|
||||
|
||||
if (ASIC_IS_DCE32(rdev))
|
||||
DRM_INFO("Output UNIPHY%d transmitter VSEMPH setup success\n", num);
|
||||
else
|
||||
DRM_INFO("Output DIG%d transmitter VSEMPH setup success\n", num);
|
||||
}
|
||||
|
||||
static void
|
||||
atombios_yuv_setup(struct drm_encoder *encoder, bool enable)
|
||||
{
|
||||
|
||||
@ -172,20 +172,19 @@ struct radeon_i2c_chan *radeon_i2c_create(struct drm_device *dev,
|
||||
return NULL;
|
||||
|
||||
i2c->adapter.owner = THIS_MODULE;
|
||||
i2c->adapter.algo_data = &i2c->algo;
|
||||
i2c->dev = dev;
|
||||
i2c->algo.setsda = set_data;
|
||||
i2c->algo.setscl = set_clock;
|
||||
i2c->algo.getsda = get_data;
|
||||
i2c->algo.getscl = get_clock;
|
||||
i2c->algo.udelay = 20;
|
||||
i2c_set_adapdata(&i2c->adapter, i2c);
|
||||
i2c->adapter.algo_data = &i2c->algo.bit;
|
||||
i2c->algo.bit.setsda = set_data;
|
||||
i2c->algo.bit.setscl = set_clock;
|
||||
i2c->algo.bit.getsda = get_data;
|
||||
i2c->algo.bit.getscl = get_clock;
|
||||
i2c->algo.bit.udelay = 20;
|
||||
/* vesa says 2.2 ms is enough, 1 jiffy doesn't seem to always
|
||||
* make this, 2 jiffies is a lot more reliable */
|
||||
i2c->algo.timeout = 2;
|
||||
i2c->algo.data = i2c;
|
||||
i2c->algo.bit.timeout = 2;
|
||||
i2c->algo.bit.data = i2c;
|
||||
i2c->rec = *rec;
|
||||
i2c_set_adapdata(&i2c->adapter, i2c);
|
||||
|
||||
ret = i2c_bit_add_bus(&i2c->adapter);
|
||||
if (ret) {
|
||||
DRM_INFO("Failed to register i2c %s\n", name);
|
||||
@ -199,6 +198,37 @@ out_free:
|
||||
|
||||
}
|
||||
|
||||
struct radeon_i2c_chan *radeon_i2c_create_dp(struct drm_device *dev,
|
||||
const char *name, bool dp, u8 i2c_id)
|
||||
{
|
||||
struct radeon_i2c_chan *i2c;
|
||||
int ret;
|
||||
|
||||
i2c = kzalloc(sizeof(struct radeon_i2c_chan), GFP_KERNEL);
|
||||
if (i2c == NULL)
|
||||
return NULL;
|
||||
|
||||
i2c->i2c_id = i2c_id;
|
||||
i2c->adapter.owner = THIS_MODULE;
|
||||
i2c->dev = dev;
|
||||
i2c_set_adapdata(&i2c->adapter, i2c);
|
||||
i2c->adapter.algo_data = &i2c->algo.dp;
|
||||
i2c->algo.dp.aux_ch = radeon_dp_i2c_aux_ch;
|
||||
i2c->algo.dp.address = 0;
|
||||
ret = i2c_dp_aux_add_bus(&i2c->adapter);
|
||||
if (ret) {
|
||||
DRM_INFO("Failed to register i2c %s\n", name);
|
||||
goto out_free;
|
||||
}
|
||||
|
||||
return i2c;
|
||||
out_free:
|
||||
kfree(i2c);
|
||||
return NULL;
|
||||
|
||||
}
|
||||
|
||||
|
||||
void radeon_i2c_destroy(struct radeon_i2c_chan *i2c)
|
||||
{
|
||||
if (!i2c)
|
||||
|
||||
@ -33,6 +33,7 @@
|
||||
#include <drm_crtc.h>
|
||||
#include <drm_mode.h>
|
||||
#include <drm_edid.h>
|
||||
#include <drm_dp_helper.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/i2c-id.h>
|
||||
#include <linux/i2c-algo-bit.h>
|
||||
@ -164,10 +165,14 @@ struct radeon_pll {
|
||||
};
|
||||
|
||||
struct radeon_i2c_chan {
|
||||
struct drm_device *dev;
|
||||
struct i2c_adapter adapter;
|
||||
struct i2c_algo_bit_data algo;
|
||||
struct drm_device *dev;
|
||||
union {
|
||||
struct i2c_algo_dp_aux_data dp;
|
||||
struct i2c_algo_bit_data bit;
|
||||
} algo;
|
||||
struct radeon_i2c_bus_rec rec;
|
||||
uint8_t i2c_id;
|
||||
};
|
||||
|
||||
/* mostly for macs, but really any system without connector tables */
|
||||
@ -328,6 +333,9 @@ struct radeon_encoder {
|
||||
struct radeon_connector_atom_dig {
|
||||
uint32_t igp_lane_info;
|
||||
bool linkb;
|
||||
uint16_t uc_i2c_id;
|
||||
struct radeon_i2c_chan *dp_i2c_bus;
|
||||
u8 dpcp[8];
|
||||
};
|
||||
|
||||
struct radeon_connector {
|
||||
@ -344,6 +352,8 @@ struct radeon_connector {
|
||||
void *con_priv;
|
||||
bool dac_load_detect;
|
||||
uint16_t connector_object_id;
|
||||
/* need to keep this for display port */
|
||||
//
|
||||
};
|
||||
|
||||
struct radeon_framebuffer {
|
||||
@ -351,6 +361,13 @@ struct radeon_framebuffer {
|
||||
struct drm_gem_object *obj;
|
||||
};
|
||||
|
||||
extern int radeon_dp_getsinktype(struct radeon_connector *radeon_connector);
|
||||
extern void radeon_dp_getdpcp(struct radeon_connector *connector);
|
||||
extern int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
|
||||
uint8_t write_byte, uint8_t *read_byte);
|
||||
|
||||
extern struct radeon_i2c_chan *radeon_i2c_create_dp(struct drm_device *dev,
|
||||
const char *name, bool dp, u8 i2c_id);
|
||||
extern struct radeon_i2c_chan *radeon_i2c_create(struct drm_device *dev,
|
||||
struct radeon_i2c_bus_rec *rec,
|
||||
const char *name);
|
||||
|
||||
@ -43,6 +43,8 @@
|
||||
#define AUX_I2C_REPLY_MASK (0x3 << 6)
|
||||
|
||||
/* AUX CH addresses */
|
||||
#define DP_DPCP_REV 0x0
|
||||
|
||||
#define DP_LINK_BW_SET 0x100
|
||||
# define DP_LINK_BW_1_62 0x06
|
||||
# define DP_LINK_BW_2_7 0x0a
|
||||
|
||||
Loading…
Reference in New Issue
Block a user