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coreboot-kgpe-d16/src/soc/mediatek/mt8195/dptx_hal.c
Julius Werner e9665959ed treewide: Remove "ERROR: "/"WARN: " prefixes from log messages 
Now that the console system itself will clearly differentiate loglevels,
it is no longer necessary to explicitly add "ERROR: " in front of every
BIOS_ERR message to help it stand out more (and allow automated tooling
to grep for it). Removing all these extra .rodata characters should save
us a nice little amount of binary size.

This patch was created by running

  find src/ -type f -exec perl -0777 -pi -e 's/printk\(\s*BIOS_ERR,\s*"ERROR: /printk\(BIOS_ERR, "/gi' '{}' ';'

and doing some cursory review/cleanup on the result. Then doing the same
thing for BIOS_WARN with

  's/printk\(\s*BIOS_WARNING,\s*"WARN(ING)?: /printk\(BIOS_WARNING, "/gi'

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I3d0573acb23d2df53db6813cb1a5fc31b5357db8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61309
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Lance Zhao
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
2022-02-07 23:29:09 +00:00

825 lines
23 KiB
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/* 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);
}
}
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