/* 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 <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, "[%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, "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); } }