| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <console/console.h> |
| #include <device/mmio.h> |
| #include <delay.h> |
| #include <edid.h> |
| #include <soc/dptx.h> |
| #include <soc/dptx_hal.h> |
| #include <soc/dptx_reg.h> |
| #include <timer.h> |
| #include <types.h> |
| |
| #define REG_OFFSET_LIMIT 0x8000 |
| |
| struct shift_mask { |
| u32 shift; |
| u32 mask; |
| }; |
| static const struct shift_mask volt_swing[DPTX_LANE_MAX] = { |
| [DPTX_LANE0] = { DP_TX0_VOLT_SWING_FLDMASK_POS, DP_TX0_VOLT_SWING_FLDMASK }, |
| [DPTX_LANE1] = { DP_TX1_VOLT_SWING_FLDMASK_POS, DP_TX1_VOLT_SWING_FLDMASK }, |
| [DPTX_LANE2] = { DP_TX2_VOLT_SWING_FLDMASK_POS, DP_TX2_VOLT_SWING_FLDMASK }, |
| [DPTX_LANE3] = { DP_TX3_VOLT_SWING_FLDMASK_POS, DP_TX3_VOLT_SWING_FLDMASK }, |
| }; |
| static const struct shift_mask volt_preemphasis[DPTX_LANE_MAX] = { |
| [DPTX_LANE0] = { DP_TX0_PRE_EMPH_FLDMASK_POS, DP_TX0_PRE_EMPH_FLDMASK }, |
| [DPTX_LANE1] = { DP_TX1_PRE_EMPH_FLDMASK_POS, DP_TX1_PRE_EMPH_FLDMASK }, |
| [DPTX_LANE2] = { DP_TX2_PRE_EMPH_FLDMASK_POS, DP_TX2_PRE_EMPH_FLDMASK }, |
| [DPTX_LANE3] = { DP_TX3_PRE_EMPH_FLDMASK_POS, DP_TX3_PRE_EMPH_FLDMASK }, |
| }; |
| |
| u32 mtk_dp_read(struct mtk_dp *mtk_dp, u32 offset) |
| { |
| void *addr = mtk_dp->regs + offset; |
| |
| if (offset % 4 != 0 || offset > REG_OFFSET_LIMIT) { |
| printk(BIOS_ERR, "[%s] invalid offset %#x for reg %p\n", |
| __func__, offset, mtk_dp->regs); |
| return 0; |
| } |
| |
| return read32(addr); |
| } |
| |
| void mtk_dp_write(struct mtk_dp *mtk_dp, u32 offset, u32 val) |
| { |
| void *addr = mtk_dp->regs + offset; |
| |
| if (offset % 4 != 0 || offset > REG_OFFSET_LIMIT) { |
| printk(BIOS_ERR, "[%s] invalid offset %#x for reg %p\n", |
| __func__, offset, mtk_dp->regs); |
| return; |
| } |
| |
| write32(addr, val); |
| } |
| |
| void mtk_dp_mask(struct mtk_dp *mtk_dp, u32 offset, u32 val, u32 mask) |
| { |
| void *addr = mtk_dp->regs + offset; |
| |
| if (offset % 4 != 0 || offset > REG_OFFSET_LIMIT) { |
| printk(BIOS_ERR, "[%s] invalid offset %#x for reg %p\n", |
| __func__, offset, mtk_dp->regs); |
| return; |
| } |
| |
| /* |
| * TODO: modify to clrsetbits32(addr, mask, val); |
| * There is asserion error when testing assert((val & mask) == val). |
| */ |
| clrsetbits32(addr, mask, val & mask); |
| } |
| |
| void mtk_dp_write_byte(struct mtk_dp *mtk_dp, u32 addr, u8 val, u32 mask) |
| { |
| if (addr % 2) { |
| mtk_dp_write(mtk_dp, DP_TX_TOP_APB_WSTRB, 0x12); |
| mtk_dp_mask(mtk_dp, addr - 1, val << 8, mask << 8); |
| } else { |
| mtk_dp_write(mtk_dp, DP_TX_TOP_APB_WSTRB, 0x11); |
| mtk_dp_mask(mtk_dp, addr, val, mask); |
| } |
| |
| mtk_dp_write(mtk_dp, DP_TX_TOP_APB_WSTRB, 0x0); |
| } |
| |
| void dptx_hal_verify_clock(struct mtk_dp *mtk_dp) |
| { |
| u32 m, n, ls_clk, pix_clk; |
| |
| m = mtk_dp_read(mtk_dp, REG_33C8_DP_ENCODER1_P0); |
| n = 0x8000; |
| ls_clk = mtk_dp->train_info.linkrate; |
| ls_clk *= 27; |
| |
| pix_clk = m * ls_clk / n; |
| printk(BIOS_DEBUG, "DPTX calc pixel clock = %d MHz, dp_intf clock = %dMHz\n", |
| pix_clk, pix_clk / 4); |
| } |
| |
| void dptx_hal_init_setting(struct mtk_dp *mtk_dp) |
| { |
| DP_WRITE1BYTE(mtk_dp, REG_342C_DP_TRANS_P0, 0x69); |
| mtk_dp_mask(mtk_dp, REG_3540_DP_TRANS_P0, BIT(3), BIT(3)); |
| mtk_dp_mask(mtk_dp, REG_31EC_DP_ENCODER0_P0, BIT(4), BIT(4)); |
| mtk_dp_mask(mtk_dp, REG_304C_DP_ENCODER0_P0, 0, BIT(8)); |
| mtk_dp_mask(mtk_dp, DP_TX_TOP_IRQ_MASK, BIT(2), BIT(2)); |
| } |
| |
| void dptx_hal_bypassmsa_en(struct mtk_dp *mtk_dp, bool enable) |
| { |
| mtk_dp_mask(mtk_dp, REG_3030_DP_ENCODER0_P0, |
| enable ? 0 : 0x3ff, 0x3ff); |
| } |
| |
| void dptx_hal_set_msa(struct mtk_dp *mtk_dp) |
| { |
| u32 va, vsync, vbp, vfp, vtotal, ha, hsync, hbp, hfp, htotal; |
| struct edid *edid = mtk_dp->edid; |
| |
| va = edid->mode.va; |
| vsync = edid->mode.vspw; |
| vbp = edid->mode.vbl - edid->mode.vso - |
| edid->mode.vspw - edid->mode.vborder; |
| vfp = edid->mode.vso - edid->mode.vborder; |
| |
| ha = edid->mode.ha; |
| hsync = edid->mode.hspw; |
| hbp = edid->mode.hbl - edid->mode.hso - |
| edid->mode.hspw - edid->mode.hborder; |
| hfp = edid->mode.hso - edid->mode.hborder; |
| |
| htotal = ha + hsync + hbp + hfp; |
| vtotal = va + vsync + vbp + vfp; |
| |
| DP_WRITE2BYTE(mtk_dp, REG_3010_DP_ENCODER0_P0, htotal); |
| DP_WRITE2BYTE(mtk_dp, REG_3018_DP_ENCODER0_P0, hsync + hbp); |
| mtk_dp_mask(mtk_dp, REG_3028_DP_ENCODER0_P0, |
| hsync << HSW_SW_DP_ENCODER0_P0_FLDMASK_POS, |
| HSW_SW_DP_ENCODER0_P0_FLDMASK); |
| mtk_dp_mask(mtk_dp, REG_3028_DP_ENCODER0_P0, |
| 0 << HSP_SW_DP_ENCODER0_P0_FLDMASK_POS, |
| HSP_SW_DP_ENCODER0_P0_FLDMASK); |
| DP_WRITE2BYTE(mtk_dp, REG_3020_DP_ENCODER0_P0, ha); |
| DP_WRITE2BYTE(mtk_dp, REG_3014_DP_ENCODER0_P0, va); |
| DP_WRITE2BYTE(mtk_dp, REG_301C_DP_ENCODER0_P0, vsync + vbp); |
| mtk_dp_mask(mtk_dp, REG_302C_DP_ENCODER0_P0, |
| vsync << VSW_SW_DP_ENCODER0_P0_FLDMASK_POS, |
| VSW_SW_DP_ENCODER0_P0_FLDMASK); |
| mtk_dp_mask(mtk_dp, REG_302C_DP_ENCODER0_P0, |
| 0 << VSP_SW_DP_ENCODER0_P0_FLDMASK_POS, |
| VSP_SW_DP_ENCODER0_P0_FLDMASK); |
| DP_WRITE2BYTE(mtk_dp, REG_3024_DP_ENCODER0_P0, va); |
| DP_WRITE2BYTE(mtk_dp, REG_3064_DP_ENCODER0_P0, ha); |
| DP_WRITE2BYTE(mtk_dp, REG_3154_DP_ENCODER0_P0, htotal); |
| DP_WRITE2BYTE(mtk_dp, REG_3158_DP_ENCODER0_P0, hfp); |
| DP_WRITE2BYTE(mtk_dp, REG_315C_DP_ENCODER0_P0, vsync); |
| DP_WRITE2BYTE(mtk_dp, REG_3160_DP_ENCODER0_P0, hsync + hbp); |
| DP_WRITE2BYTE(mtk_dp, REG_3164_DP_ENCODER0_P0, ha); |
| DP_WRITE2BYTE(mtk_dp, REG_3168_DP_ENCODER0_P0, vtotal); |
| DP_WRITE2BYTE(mtk_dp, REG_316C_DP_ENCODER0_P0, hfp); |
| DP_WRITE2BYTE(mtk_dp, REG_3170_DP_ENCODER0_P0, vsync); |
| DP_WRITE2BYTE(mtk_dp, REG_3174_DP_ENCODER0_P0, vsync + vbp); |
| DP_WRITE2BYTE(mtk_dp, REG_3178_DP_ENCODER0_P0, va); |
| |
| printk(BIOS_INFO, "MSA:Htt(%d), Vtt(%d), Hact(%d), Vact(%d), FPS(%d)\n", |
| htotal, vtotal, ha, va, |
| edid->mode.pixel_clock * 1000 / htotal / vtotal); |
| } |
| |
| void dptx_hal_set_color_format(struct mtk_dp *mtk_dp, u8 out_format) |
| { |
| /* MISC0 */ |
| mtk_dp_write_byte(mtk_dp, REG_3034_DP_ENCODER0_P0, |
| out_format << 0x1, GENMASK(2, 1)); |
| |
| switch (out_format) { |
| case DP_COLOR_FORMAT_RGB_444: |
| case DP_COLOR_FORMAT_YUV_444: |
| mtk_dp_write_byte(mtk_dp, REG_303C_DP_ENCODER0_P0 + 1, |
| 0, GENMASK(6, 4)); |
| break; |
| case DP_COLOR_FORMAT_YUV_422: |
| mtk_dp_write_byte(mtk_dp, REG_303C_DP_ENCODER0_P0 + 1, |
| BIT(4), GENMASK(6, 4)); |
| break; |
| case DP_COLOR_FORMAT_YUV_420: |
| mtk_dp_write_byte(mtk_dp, REG_303C_DP_ENCODER0_P0 + 1, BIT(5), |
| GENMASK(6, 4)); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| void dptx_hal_set_color_depth(struct mtk_dp *mtk_dp, u8 color_depth) |
| { |
| u8 val; |
| |
| mtk_dp_write_byte(mtk_dp, REG_3034_DP_ENCODER0_P0, |
| color_depth << 0x5, 0xe0); |
| |
| switch (color_depth) { |
| case DP_COLOR_DEPTH_6BIT: |
| val = 4; |
| break; |
| case DP_COLOR_DEPTH_8BIT: |
| val = 3; |
| break; |
| case DP_COLOR_DEPTH_10BIT: |
| val = 2; |
| break; |
| case DP_COLOR_DEPTH_12BIT: |
| val = 1; |
| break; |
| case DP_COLOR_DEPTH_16BIT: |
| val = 0; |
| break; |
| default: |
| return; |
| } |
| mtk_dp_write_byte(mtk_dp, REG_303C_DP_ENCODER0_P0 + 1, val, 0x7); |
| } |
| |
| void dptx_hal_setmisc(struct mtk_dp *mtk_dp, u8 cmisc[2]) |
| { |
| mtk_dp_write_byte(mtk_dp, REG_3034_DP_ENCODER0_P0, cmisc[0], 0xfe); |
| mtk_dp_write_byte(mtk_dp, REG_3034_DP_ENCODER0_P0 + 1, cmisc[1], 0xff); |
| } |
| |
| void dptx_hal_overwrite_mn(struct mtk_dp *mtk_dp, |
| bool enable, u32 video_m, u32 video_n) |
| { |
| if (enable) { |
| /* Turn on overwrite MN */ |
| DP_WRITE2BYTE(mtk_dp, REG_3008_DP_ENCODER0_P0, |
| video_m & 0xffff); |
| DP_WRITE1BYTE(mtk_dp, REG_300C_DP_ENCODER0_P0, |
| (video_m >> 16) & 0xff); |
| DP_WRITE2BYTE(mtk_dp, REG_3044_DP_ENCODER0_P0, |
| video_n & 0xffff); |
| DP_WRITE1BYTE(mtk_dp, REG_3048_DP_ENCODER0_P0, |
| (video_n >> 16) & 0xff); |
| DP_WRITE2BYTE(mtk_dp, REG_3050_DP_ENCODER0_P0, |
| video_n & 0xffff); |
| |
| /* Add legerII. */ |
| DP_WRITE1BYTE(mtk_dp, REG_3054_DP_ENCODER0_P0, |
| (video_n >> 16) & 0xff); |
| mtk_dp_write_byte(mtk_dp, REG_3004_DP_ENCODER0_P0 + 1, |
| BIT(0), BIT(0)); |
| } else { |
| /* Turn off overwrite MN */ |
| mtk_dp_write_byte(mtk_dp, REG_3004_DP_ENCODER0_P0 + 1, |
| 0, BIT(0)); |
| } |
| } |
| |
| u8 dptx_hal_get_colorbpp(struct mtk_dp *mtk_dp) |
| { |
| u8 color_bpp; |
| u8 color_depth = mtk_dp->info.depth; |
| u8 color_format = mtk_dp->info.format; |
| |
| switch (color_depth) { |
| case DP_COLOR_DEPTH_6BIT: |
| if (color_format == DP_COLOR_FORMAT_YUV_422) |
| color_bpp = 16; |
| else if (color_format == DP_COLOR_FORMAT_YUV_420) |
| color_bpp = 12; |
| else |
| color_bpp = 18; |
| break; |
| case DP_COLOR_DEPTH_8BIT: |
| if (color_format == DP_COLOR_FORMAT_YUV_422) |
| color_bpp = 16; |
| else if (color_format == DP_COLOR_FORMAT_YUV_420) |
| color_bpp = 12; |
| else |
| color_bpp = 24; |
| break; |
| case DP_COLOR_DEPTH_10BIT: |
| if (color_format == DP_COLOR_FORMAT_YUV_422) |
| color_bpp = 20; |
| else if (color_format == DP_COLOR_FORMAT_YUV_420) |
| color_bpp = 15; |
| else |
| color_bpp = 30; |
| break; |
| case DP_COLOR_DEPTH_12BIT: |
| if (color_format == DP_COLOR_FORMAT_YUV_422) |
| color_bpp = 24; |
| else if (color_format == DP_COLOR_FORMAT_YUV_420) |
| color_bpp = 18; |
| else |
| color_bpp = 36; |
| break; |
| case DP_COLOR_DEPTH_16BIT: |
| if (color_format == DP_COLOR_FORMAT_YUV_422) |
| color_bpp = 32; |
| else if (color_format == DP_COLOR_FORMAT_YUV_420) |
| color_bpp = 24; |
| else |
| color_bpp = 48; |
| break; |
| default: |
| color_bpp = 24; |
| printk(BIOS_ERR, "Set wrong bpp = %d\n", color_bpp); |
| break; |
| } |
| |
| return color_bpp; |
| } |
| |
| void dptx_hal_settu_sramrd_start(struct mtk_dp *mtk_dp, u16 value) |
| { |
| /* |
| * [5:0] video sram start address |
| * modify in 480P case only, default=0x1f |
| */ |
| mtk_dp_write_byte(mtk_dp, REG_303C_DP_ENCODER0_P0, (u8)value, 0x3f); |
| } |
| |
| void dptx_hal_setsdp_downcnt_init_inhblanking(struct mtk_dp *mtk_dp, u16 value) |
| { |
| mtk_dp_mask(mtk_dp, REG_3364_DP_ENCODER1_P0, value, 0xfff); |
| |
| } |
| |
| void dptx_hal_setsdp_downcnt_init(struct mtk_dp *mtk_dp, u16 value) |
| { |
| mtk_dp_mask(mtk_dp, REG_3040_DP_ENCODER0_P0, value, 0xfff); |
| } |
| |
| void dptx_hal_settu_setencoder(struct mtk_dp *mtk_dp) |
| { |
| mtk_dp_write_byte(mtk_dp, REG_303C_DP_ENCODER0_P0 + 1, |
| BIT(7), BIT(7)); |
| DP_WRITE2BYTE(mtk_dp, REG_3040_DP_ENCODER0_P0, 0x2020); |
| mtk_dp_mask(mtk_dp, REG_3364_DP_ENCODER1_P0, 0x2020, 0xfff); |
| mtk_dp_write_byte(mtk_dp, REG_3300_DP_ENCODER1_P0 + 1, |
| 0x2, BIT(1) | BIT(0)); |
| mtk_dp_write_byte(mtk_dp, REG_3364_DP_ENCODER1_P0 + 1, |
| 0x40, 0x70); |
| DP_WRITE2BYTE(mtk_dp, REG_3368_DP_ENCODER1_P0, 0x1111); |
| } |
| |
| bool dptx_hal_hpd_high(struct mtk_dp *mtk_dp) |
| { |
| return mtk_dp_read(mtk_dp, REG_3414_DP_TRANS_P0) & BIT(2); |
| } |
| |
| bool dptx_hal_auxread_bytes(struct mtk_dp *mtk_dp, u8 cmd, |
| u32 dpcd_addr, size_t length, u8 *rx_buf) |
| { |
| bool valid_cmd = false; |
| u8 reply_cmd, aux_irq_status; |
| int rd_count; |
| u32 wait_reply_count = AUX_WAITREPLY_LPNUM; |
| |
| DP_WRITE1BYTE(mtk_dp, REG_3640_AUX_TX_P0, 0x7f); |
| mdelay(1); |
| |
| if (length > 16 || (cmd == AUX_CMD_NATIVE_R && length == 0x0)) |
| return false; |
| |
| DP_WRITE1BYTE(mtk_dp, REG_3650_AUX_TX_P0 + 1, 0x1); |
| DP_WRITE1BYTE(mtk_dp, REG_3644_AUX_TX_P0, cmd); |
| DP_WRITE2BYTE(mtk_dp, REG_3648_AUX_TX_P0, dpcd_addr & 0xffff); |
| DP_WRITE1BYTE(mtk_dp, REG_364C_AUX_TX_P0, (dpcd_addr >> 16) & 0xf); |
| |
| if (length > 0) { |
| mtk_dp_mask(mtk_dp, REG_3650_AUX_TX_P0, |
| (length - 1) << MCU_REQ_DATA_NUM_AUX_TX_P0_FLDMASK_POS, |
| MCU_REQUEST_DATA_NUM_AUX_TX_P0_FLDMASK); |
| DP_WRITE1BYTE(mtk_dp, REG_362C_AUX_TX_P0, 0x0); |
| } |
| |
| if (cmd == AUX_CMD_I2C_R || cmd == AUX_CMD_I2C_R_MOT0) |
| if (length == 0x0) |
| mtk_dp_mask(mtk_dp, REG_362C_AUX_TX_P0, |
| 0x1 << AUX_NO_LENGTH_AUX_TX_P0_FLDMASK_POS, |
| AUX_NO_LENGTH_AUX_TX_P0_FLDMASK); |
| |
| mtk_dp_mask(mtk_dp, REG_3630_AUX_TX_P0, |
| 0x1 << AUX_TX_REQUEST_READY_AUX_TX_P0_FLDMASK_POS, |
| AUX_TX_REQUEST_READY_AUX_TX_P0_FLDMASK); |
| |
| while (--wait_reply_count) { |
| if (mtk_dp_read(mtk_dp, REG_3618_AUX_TX_P0) & |
| AUX_RX_FIFO_WRITE_POINTER_AUX_TX_P0_FLDMASK) { |
| valid_cmd = true; |
| break; |
| } |
| |
| if (mtk_dp_read(mtk_dp, REG_3618_AUX_TX_P0) & |
| AUX_RX_FIFO_FULL_AUX_TX_P0_FLDMASK) { |
| valid_cmd = true; |
| break; |
| } |
| |
| aux_irq_status = mtk_dp_read(mtk_dp, REG_3640_AUX_TX_P0) & 0xff; |
| |
| if (aux_irq_status & AUX_RX_RECV_COMPLETE_IRQ_TX_P0_FLDMASK) { |
| valid_cmd = true; |
| break; |
| } |
| |
| if (aux_irq_status & AUX_400US_TIMEOUT_IRQ_AUX_TX_P0_FLDMASK) { |
| printk(BIOS_ERR, "(AUX Read)HW Timeout 400us irq\n"); |
| break; |
| } |
| } |
| |
| reply_cmd = mtk_dp_read(mtk_dp, REG_3624_AUX_TX_P0) & 0xf; |
| if (reply_cmd) |
| printk(BIOS_ERR, "reply_cmd(%#x), NACK or Defer\n", reply_cmd); |
| |
| if (wait_reply_count == 0x0 || reply_cmd) { |
| u8 phy_status = 0x0; |
| |
| phy_status = mtk_dp_read(mtk_dp, REG_3628_AUX_TX_P0); |
| if (phy_status != 0x1) |
| printk(BIOS_ERR, "Aux read: aux hang, need sw reset\n"); |
| |
| mtk_dp_mask(mtk_dp, REG_3650_AUX_TX_P0, |
| 0x1 << MCU_ACK_TRAN_COMPLETE_AUX_TX_P0_FLDMASK_POS, |
| MCU_ACK_TRANSACTION_COMPLETE_AUX_TX_P0_FLDMASK); |
| DP_WRITE1BYTE(mtk_dp, REG_3640_AUX_TX_P0, 0x7f); |
| |
| mdelay(1); |
| printk(BIOS_ERR, "wait_reply_count(%#x), TimeOut\n", |
| wait_reply_count); |
| return false; |
| } |
| |
| if (length == 0) { |
| DP_WRITE1BYTE(mtk_dp, REG_362C_AUX_TX_P0, 0x0); |
| } else { |
| if (valid_cmd) { |
| mtk_dp_mask(mtk_dp, REG_3620_AUX_TX_P0, |
| 0x0 << AUX_RD_MODE_AUX_TX_P0_FLDMASK_POS, |
| AUX_RD_MODE_AUX_TX_P0_FLDMASK); |
| |
| for (rd_count = 0; rd_count < length; rd_count++) { |
| mtk_dp_mask(mtk_dp, REG_3620_AUX_TX_P0, |
| 0x1 << AUX_RX_FIFO_R_PULSE_TX_P0_FLDMASK_POS, |
| AUX_RX_FIFO_READ_PULSE_TX_P0_FLDMASK); |
| mdelay(1); |
| *(rx_buf + rd_count) = mtk_dp_read(mtk_dp, |
| REG_3620_AUX_TX_P0); |
| } |
| } else { |
| printk(BIOS_INFO, "Read TimeOut %#x\n", dpcd_addr); |
| } |
| } |
| |
| mtk_dp_mask(mtk_dp, REG_3650_AUX_TX_P0, |
| 0x1 << MCU_ACK_TRAN_COMPLETE_AUX_TX_P0_FLDMASK_POS, |
| MCU_ACK_TRANSACTION_COMPLETE_AUX_TX_P0_FLDMASK); |
| DP_WRITE1BYTE(mtk_dp, REG_3640_AUX_TX_P0, 0x7f); |
| |
| mdelay(1); |
| return valid_cmd; |
| } |
| |
| bool dptx_hal_auxwrite_bytes(struct mtk_dp *mtk_dp, u8 cmd, |
| u32 dpcd_addr, size_t length, u8 *data) |
| { |
| bool valid_cmd = false; |
| u8 reply_cmd; |
| int i; |
| u16 wait_reply_count = AUX_WAITREPLY_LPNUM; |
| int reg_idx; |
| |
| mtk_dp_write_byte(mtk_dp, REG_3704_AUX_TX_P0, |
| 1 << AUX_TX_FIFO_NEW_MODE_EN_AUX_TX_P0_FLDMASK_POS, |
| AUX_TX_FIFO_NEW_MODE_EN_AUX_TX_P0_FLDMASK); |
| DP_WRITE1BYTE(mtk_dp, REG_3650_AUX_TX_P0 + 1, 0x1); |
| DP_WRITE1BYTE(mtk_dp, REG_3640_AUX_TX_P0, 0x7f); |
| mdelay(1); |
| |
| DP_WRITE1BYTE(mtk_dp, REG_3650_AUX_TX_P0 + 1, 0x1); |
| DP_WRITE1BYTE(mtk_dp, REG_3644_AUX_TX_P0, cmd); |
| DP_WRITE1BYTE(mtk_dp, REG_3648_AUX_TX_P0, dpcd_addr & 0xff); |
| DP_WRITE1BYTE(mtk_dp, REG_3648_AUX_TX_P0 + 1, |
| (dpcd_addr >> 8) & 0xff); |
| DP_WRITE1BYTE(mtk_dp, REG_364C_AUX_TX_P0, |
| (dpcd_addr >> 16) & 0xf); |
| |
| if (length > 0) { |
| DP_WRITE1BYTE(mtk_dp, REG_362C_AUX_TX_P0, 0x0); |
| for (i = 0; i < (length + 1) / 2; i++) |
| for (reg_idx = 0; reg_idx < 2; reg_idx++) |
| if ((i * 2 + reg_idx) < length) |
| DP_WRITE1BYTE(mtk_dp, |
| REG_3708_AUX_TX_P0 + i * 4 + reg_idx, |
| data[i * 2 + reg_idx]); |
| DP_WRITE1BYTE(mtk_dp, REG_3650_AUX_TX_P0 + 1, |
| ((length - 1) & 0xf) << 4); |
| } else { |
| DP_WRITE1BYTE(mtk_dp, REG_362C_AUX_TX_P0, 0x1); |
| } |
| |
| mtk_dp_write_byte(mtk_dp, REG_3704_AUX_TX_P0, |
| AUX_TX_FIFO_WRITE_DATA_NEW_MODE_TOGGLE_AUX_TX_P0_FLDMASK, |
| AUX_TX_FIFO_WRITE_DATA_NEW_MODE_TOGGLE_AUX_TX_P0_FLDMASK); |
| DP_WRITE1BYTE(mtk_dp, REG_3630_AUX_TX_P0, 0x8); |
| |
| while (--wait_reply_count) { |
| u8 aux_irq_status; |
| |
| aux_irq_status = mtk_dp_read(mtk_dp, REG_3640_AUX_TX_P0) & 0xff; |
| mdelay(1); |
| if (aux_irq_status & AUX_RX_RECV_COMPLETE_IRQ_TX_P0_FLDMASK) { |
| valid_cmd = true; |
| break; |
| } |
| |
| if (aux_irq_status & AUX_400US_TIMEOUT_IRQ_AUX_TX_P0_FLDMASK) |
| break; |
| } |
| |
| reply_cmd = mtk_dp_read(mtk_dp, REG_3624_AUX_TX_P0) & 0xf; |
| if (reply_cmd) |
| printk(BIOS_ERR, "reply_cmd(%#x), NACK or Defer\n", reply_cmd); |
| |
| if (wait_reply_count == 0x0 || reply_cmd) { |
| u8 phy_status = 0x0; |
| |
| phy_status = mtk_dp_read(mtk_dp, REG_3628_AUX_TX_P0); |
| if (phy_status != 0x1) |
| printk(BIOS_ERR, |
| "Aux write: aux hang, need SW reset!\n"); |
| |
| DP_WRITE1BYTE(mtk_dp, REG_3650_AUX_TX_P0 + 1, 0x1); |
| DP_WRITE1BYTE(mtk_dp, REG_3640_AUX_TX_P0, 0x7f); |
| |
| mdelay(1); |
| |
| printk(BIOS_INFO, "reply_cmd(%#x), wait_reply_count(%d)\n", |
| reply_cmd, wait_reply_count); |
| return false; |
| } |
| |
| DP_WRITE1BYTE(mtk_dp, REG_3650_AUX_TX_P0 + 1, 0x1); |
| |
| if (length == 0) |
| DP_WRITE1BYTE(mtk_dp, REG_362C_AUX_TX_P0, 0x0); |
| |
| DP_WRITE1BYTE(mtk_dp, REG_3640_AUX_TX_P0, 0x7f); |
| |
| mdelay(1); |
| |
| return valid_cmd; |
| } |
| |
| bool dptx_hal_setswing_preemphasis(struct mtk_dp *mtk_dp, int lane_num, |
| int swing_value, int preemphasis) |
| { |
| printk(BIOS_DEBUG, "lane(%d), set swing(%#x), emp(%#x)\n", |
| lane_num, swing_value, preemphasis); |
| |
| if (lane_num >= DPTX_LANE_MAX) { |
| printk(BIOS_ERR, "invalid lane number: %d\n", lane_num); |
| return false; |
| } |
| |
| mtk_dp_mask(mtk_dp, DP_TX_TOP_SWING_EMP, |
| swing_value << volt_swing[lane_num].shift, |
| volt_swing[lane_num].mask); |
| mtk_dp_mask(mtk_dp, DP_TX_TOP_SWING_EMP, |
| preemphasis << volt_preemphasis[lane_num].shift, |
| volt_preemphasis[lane_num].mask); |
| return true; |
| } |
| |
| void dptx_hal_reset_swing_preemphasis(struct mtk_dp *mtk_dp) |
| { |
| int lane; |
| |
| for (lane = 0; lane < DPTX_LANE_MAX; lane++) |
| mtk_dp_mask(mtk_dp, DP_TX_TOP_SWING_EMP, |
| 0, volt_swing[lane].mask); |
| for (lane = 0; lane < DPTX_LANE_MAX; lane++) |
| mtk_dp_mask(mtk_dp, DP_TX_TOP_SWING_EMP, |
| 0, volt_preemphasis[lane].mask); |
| } |
| |
| void dptx_hal_hpd_int_en(struct mtk_dp *mtk_dp, bool enable) |
| { |
| /* [7]:int, [6]:Con, [5]DisCon, [4]No-Use: UnMASK HPD Port */ |
| mtk_dp_write_byte(mtk_dp, REG_3418_DP_TRANS_P0, |
| enable ? 0 : GENMASK(7, 5), GENMASK(7, 5)); |
| } |
| |
| void dptx_hal_hpd_detect_setting(struct mtk_dp *mtk_dp) |
| { |
| mtk_dp_write_byte(mtk_dp, REG_3410_DP_TRANS_P0, |
| 0x8, GENMASK(3, 0)); |
| mtk_dp_write_byte(mtk_dp, REG_3410_DP_TRANS_P0, |
| 0xa << 4, GENMASK(7, 4)); |
| |
| DP_WRITE1BYTE(mtk_dp, REG_3410_DP_TRANS_P0 + 1, 0x55); |
| DP_WRITE1BYTE(mtk_dp, REG_3430_DP_TRANS_P0, 0x2); |
| } |
| |
| void dptx_hal_phy_setting(struct mtk_dp *mtk_dp) |
| { |
| mtk_dp_mask(mtk_dp, DP_TX_TOP_PWR_STATE, |
| 0x3 << DP_PWR_STATE_FLDMASK_POS, DP_PWR_STATE_FLDMASK); |
| |
| mtk_dp_write(mtk_dp, 0x2000, 0x00000001); |
| mtk_dp_write(mtk_dp, 0x103c, 0x00000000); |
| mtk_dp_write(mtk_dp, 0x2000, 0x00000003); |
| mtk_dp_write(mtk_dp, 0x1138, 0x20181410); |
| mtk_dp_write(mtk_dp, 0x1238, 0x20181410); |
| mtk_dp_write(mtk_dp, 0x1338, 0x20181410); |
| mtk_dp_write(mtk_dp, 0x1438, 0x20181410); |
| mtk_dp_write(mtk_dp, 0x113C, 0x20241e18); |
| mtk_dp_write(mtk_dp, 0x123C, 0x20241e18); |
| mtk_dp_write(mtk_dp, 0x133C, 0x20241e18); |
| mtk_dp_write(mtk_dp, 0x143C, 0x20241e18); |
| mtk_dp_write(mtk_dp, 0x1140, 0x00003028); |
| mtk_dp_write(mtk_dp, 0x1240, 0x00003028); |
| mtk_dp_write(mtk_dp, 0x1340, 0x00003028); |
| mtk_dp_write(mtk_dp, 0x1440, 0x00003028); |
| mtk_dp_write(mtk_dp, 0x1144, 0x10080400); |
| mtk_dp_write(mtk_dp, 0x1244, 0x10080400); |
| mtk_dp_write(mtk_dp, 0x1344, 0x10080400); |
| mtk_dp_write(mtk_dp, 0x1444, 0x10080400); |
| mtk_dp_write(mtk_dp, 0x1148, 0x000c0600); |
| mtk_dp_write(mtk_dp, 0x1248, 0x000c0600); |
| mtk_dp_write(mtk_dp, 0x1348, 0x000c0600); |
| mtk_dp_write(mtk_dp, 0x1448, 0x000c0600); |
| mtk_dp_write(mtk_dp, 0x114C, 0x00000008); |
| mtk_dp_write(mtk_dp, 0x124C, 0x00000008); |
| mtk_dp_write(mtk_dp, 0x134C, 0x00000008); |
| mtk_dp_write(mtk_dp, 0x144C, 0x00000008); |
| mtk_dp_mask(mtk_dp, 0x3690, BIT(8), BIT(8)); |
| } |
| |
| void dptx_hal_ssc_en(struct mtk_dp *mtk_dp, bool enable) |
| { |
| mtk_dp_mask(mtk_dp, 0x2000, BIT(0), GENMASK(1, 0)); |
| |
| if (enable) |
| mtk_dp_mask(mtk_dp, 0x1014, BIT(3), BIT(3)); |
| else |
| mtk_dp_mask(mtk_dp, 0x1014, 0x0, BIT(3)); |
| |
| mtk_dp_mask(mtk_dp, 0x2000, GENMASK(1, 0), GENMASK(1, 0)); |
| |
| mdelay(1); |
| } |
| |
| void dptx_hal_aux_setting(struct mtk_dp *mtk_dp) |
| { |
| /* [12 : 8]: modify timeout threshold = 1595 */ |
| mtk_dp_mask(mtk_dp, REG_360C_AUX_TX_P0, |
| 0x1595, AUX_TIMEOUT_THR_AUX_TX_P0_FLDMASK); |
| mtk_dp_write_byte(mtk_dp, REG_3658_AUX_TX_P0, 0, BIT(0)); |
| |
| /* 0x19 for 26M */ |
| DP_WRITE1BYTE(mtk_dp, REG_3634_AUX_TX_P0 + 1, 0x19); |
| /* 0xd for 26M */ |
| mtk_dp_write_byte(mtk_dp, REG_3614_AUX_TX_P0, |
| 0xd, GENMASK(6, 0)); |
| mtk_dp_mask(mtk_dp, REG_37C8_AUX_TX_P0, |
| 0x01 << MTK_ATOP_EN_AUX_TX_P0_FLDMASK_POS, |
| MTK_ATOP_EN_AUX_TX_P0_FLDMASK); |
| } |
| |
| void dptx_hal_digital_setting(struct mtk_dp *mtk_dp) |
| { |
| mtk_dp_write_byte(mtk_dp, REG_304C_DP_ENCODER0_P0, |
| 0, VBID_VIDEO_MUTE_DP_ENCODER0_P0_FLDMASK); |
| /* MISC0 */ |
| dptx_hal_set_color_format(mtk_dp, DP_COLOR_FORMAT_RGB_444); |
| |
| dptx_hal_set_color_depth(mtk_dp, DP_COLOR_DEPTH_8BIT); |
| mtk_dp_write_byte(mtk_dp, REG_3368_DP_ENCODER1_P0 + 1, |
| BIT(4), GENMASK(5, 4)); |
| /* DPtx encoder reset all sw. */ |
| mtk_dp_write_byte(mtk_dp, REG_3004_DP_ENCODER0_P0 + 1, BIT(1), BIT(1)); |
| |
| mdelay(1); |
| |
| /* DPtx encoder reset all sw. */ |
| mtk_dp_write_byte(mtk_dp, REG_3004_DP_ENCODER0_P0 + 1, 0, BIT(1)); |
| } |
| |
| void dptx_hal_digital_swreset(struct mtk_dp *mtk_dp) |
| { |
| mtk_dp_write_byte(mtk_dp, REG_340C_DP_TRANS_P0 + 1, BIT(5), BIT(5)); |
| mdelay(1); |
| mtk_dp_write_byte(mtk_dp, REG_340C_DP_TRANS_P0 + 1, 0, BIT(5)); |
| } |
| |
| void dptx_hal_phyd_reset(struct mtk_dp *mtk_dp) |
| { |
| mtk_dp_write_byte(mtk_dp, 0x1038, 0, BIT(0)); |
| mdelay(1); |
| mtk_dp_write_byte(mtk_dp, 0x1038, BIT(0), BIT(0)); |
| } |
| |
| void dptx_hal_set_txlane(struct mtk_dp *mtk_dp, int value) |
| { |
| if (value == 0) |
| mtk_dp_write_byte(mtk_dp, REG_35F0_DP_TRANS_P0, |
| 0, BIT(3) | BIT(2)); |
| else |
| mtk_dp_write_byte(mtk_dp, REG_35F0_DP_TRANS_P0, |
| BIT(3), BIT(3) | BIT(2)); |
| |
| if ((value << 2) <= UINT8_MAX) { |
| mtk_dp_write_byte(mtk_dp, REG_3000_DP_ENCODER0_P0, |
| value, BIT(1) | BIT(0)); |
| mtk_dp_write_byte(mtk_dp, REG_34A4_DP_TRANS_P0, |
| value << 2, BIT(3) | BIT(2)); |
| } else { |
| printk(BIOS_ERR, "ERROR: [%s]value << 2 > 0xff\n", __func__); |
| } |
| } |
| |
| void dptx_hal_set_txrate(struct mtk_dp *mtk_dp, int value) |
| { |
| /* Power off TPLL and lane */ |
| mtk_dp_write(mtk_dp, 0x2000, 0x00000001); |
| /* Set gear : 0x0 : RBR, 0x1 : HBR, 0x2 : HBR2, 0x3 : HBR3 */ |
| switch (value) { |
| case DP_LINKRATE_RBR: |
| mtk_dp_write(mtk_dp, 0x103C, 0x0); |
| break; |
| case DP_LINKRATE_HBR: |
| mtk_dp_write(mtk_dp, 0x103C, 0x1); |
| break; |
| case DP_LINKRATE_HBR2: |
| mtk_dp_write(mtk_dp, 0x103C, 0x2); |
| break; |
| case DP_LINKRATE_HBR3: |
| mtk_dp_write(mtk_dp, 0x103C, 0x3); |
| break; |
| default: |
| printk(BIOS_ERR, "ERROR: Link rate not support(%d)\n", value); |
| break; |
| } |
| |
| /* Power on BandGap, TPLL and Lane */ |
| mtk_dp_write(mtk_dp, 0x2000, 0x3); |
| } |
| |
| void dptx_hal_set_txtrainingpattern(struct mtk_dp *mtk_dp, int value) |
| { |
| /* if Set TPS1. */ |
| if (value == BIT(4)) |
| dptx_hal_phy_setidlepattern(mtk_dp, false); |
| |
| mtk_dp_write_byte(mtk_dp, REG_3400_DP_TRANS_P0 + 1, |
| value, GENMASK(7, 4)); |
| } |
| |
| void dptx_hal_phy_setidlepattern(struct mtk_dp *mtk_dp, bool enable) |
| { |
| mtk_dp_write_byte(mtk_dp, REG_3580_DP_TRANS_P0 + 1, |
| enable ? 0xf : 0x0, 0xf); |
| } |
| |
| void dptx_hal_set_ef_mode(struct mtk_dp *mtk_dp, bool enable) |
| { |
| /* |
| * [4]: REG_enhanced_frame_mode |
| * [1 : 0]: REG_lane_num |
| */ |
| if (enable) |
| mtk_dp_write_byte(mtk_dp, REG_3000_DP_ENCODER0_P0, |
| BIT(4), BIT(4)); |
| else |
| mtk_dp_write_byte(mtk_dp, REG_3000_DP_ENCODER0_P0, |
| 0, BIT(4)); |
| } |
| |
| void dptx_hal_setscramble(struct mtk_dp *mtk_dp, bool enable) |
| { |
| /* [0]: dp tx transmitter scramble enable. */ |
| if (enable) |
| mtk_dp_write_byte(mtk_dp, REG_3404_DP_TRANS_P0, |
| BIT(0), BIT(0)); |
| else |
| mtk_dp_write_byte(mtk_dp, REG_3404_DP_TRANS_P0, |
| 0, BIT(0)); |
| } |
| |
| void dptx_hal_videomute(struct mtk_dp *mtk_dp, bool enable) |
| { |
| if (enable) { |
| mtk_dp_write_byte(mtk_dp, REG_3000_DP_ENCODER0_P0, |
| BIT(3) | BIT(2), BIT(3) | BIT(2)); |
| mtk_dp_write_byte(mtk_dp, DP_TX_SECURE_REG11, |
| BIT(3) | BIT(4), BIT(3) | BIT(4)); |
| } else { |
| mtk_dp_write_byte(mtk_dp, REG_3000_DP_ENCODER0_P0, |
| BIT(3), BIT(3) | BIT(2)); |
| mtk_dp_write_byte(mtk_dp, DP_TX_SECURE_REG11, |
| BIT(4), BIT(3) | BIT(4)); |
| } |
| printk(BIOS_DEBUG, "mute = %#x\n", read32(mtk_dp->regs + 0x402c)); |
| } |
| |
| void dptx_hal_analog_power_en(struct mtk_dp *mtk_dp, bool enable) |
| { |
| if (enable) { |
| mtk_dp_write_byte(mtk_dp, DP_TX_TOP_RESET_AND_PROBE, |
| 0, BIT(4)); |
| mdelay(1); |
| mtk_dp_write_byte(mtk_dp, DP_TX_TOP_RESET_AND_PROBE, |
| BIT(4), BIT(4)); |
| } else { |
| DP_WRITE2BYTE(mtk_dp, TOP_OFFSET, 0x0); |
| mdelay(1); |
| DP_WRITE2BYTE(mtk_dp, 0x0034, 0x4aa); |
| DP_WRITE2BYTE(mtk_dp, 0x1040, 0x0); |
| DP_WRITE2BYTE(mtk_dp, 0x0038, 0x555); |
| } |
| } |