// SPDX-License-Identifier: GPL-2.0-only
/*
* OMAP5 HDMI CORE IP driver library
*
* Copyright (C) 2014 Texas Instruments Incorporated - https://www.ti.com/
* Authors:
* Yong Zhi
* Mythri pk
* Archit Taneja <[email protected]>
* Tomi Valkeinen <[email protected]>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/string.h>
#include <linux/seq_file.h>
#include <drm/drm_edid.h>
#include <sound/asound.h>
#include <sound/asoundef.h>
#include "hdmi5_core.h"
void hdmi5_core_ddc_init(struct hdmi_core_data *core)
{
void __iomem *base = core->base;
const unsigned long long iclk = 266000000; /* DSS L3 ICLK */
const unsigned int ss_scl_high = 4700; /* ns */
const unsigned int ss_scl_low = 5500; /* ns */
const unsigned int fs_scl_high = 600; /* ns */
const unsigned int fs_scl_low = 1300; /* ns */
const unsigned int sda_hold = 1000; /* ns */
const unsigned int sfr_div = 10;
unsigned long long sfr;
unsigned int v;
sfr = iclk / sfr_div; /* SFR_DIV */
sfr /= 1000; /* SFR clock in kHz */
/* Reset */
REG_FLD_MOD(base, HDMI_CORE_I2CM_SOFTRSTZ, 0, 0, 0);
if (hdmi_wait_for_bit_change(base, HDMI_CORE_I2CM_SOFTRSTZ,
0, 0, 1) != 1)
DSSERR("HDMI I2CM reset failed\n");
/* Standard (0) or Fast (1) Mode */
REG_FLD_MOD(base, HDMI_CORE_I2CM_DIV, 0, 3, 3);
/* Standard Mode SCL High counter */
v = DIV_ROUND_UP_ULL(ss_scl_high * sfr, 1000000);
REG_FLD_MOD(base, HDMI_CORE_I2CM_SS_SCL_HCNT_1_ADDR,
(v >> 8) & 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_I2CM_SS_SCL_HCNT_0_ADDR,
v & 0xff, 7, 0);
/* Standard Mode SCL Low counter */
v = DIV_ROUND_UP_ULL(ss_scl_low * sfr, 1000000);
REG_FLD_MOD(base, HDMI_CORE_I2CM_SS_SCL_LCNT_1_ADDR,
(v >> 8) & 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_I2CM_SS_SCL_LCNT_0_ADDR,
v & 0xff, 7, 0);
/* Fast Mode SCL High Counter */
v = DIV_ROUND_UP_ULL(fs_scl_high * sfr, 1000000);
REG_FLD_MOD(base, HDMI_CORE_I2CM_FS_SCL_HCNT_1_ADDR,
(v >> 8) & 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_I2CM_FS_SCL_HCNT_0_ADDR,
v & 0xff, 7, 0);
/* Fast Mode SCL Low Counter */
v = DIV_ROUND_UP_ULL(fs_scl_low * sfr, 1000000);
REG_FLD_MOD(base, HDMI_CORE_I2CM_FS_SCL_LCNT_1_ADDR,
(v >> 8) & 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_I2CM_FS_SCL_LCNT_0_ADDR,
v & 0xff, 7, 0);
/* SDA Hold Time */
v = DIV_ROUND_UP_ULL(sda_hold * sfr, 1000000);
REG_FLD_MOD(base, HDMI_CORE_I2CM_SDA_HOLD_ADDR, v & 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_I2CM_SLAVE, 0x50, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_I2CM_SEGADDR, 0x30, 6, 0);
/* NACK_POL to high */
REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x1, 7, 7);
/* NACK_MASK to unmasked */
REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x0, 6, 6);
/* ARBITRATION_POL to high */
REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x1, 3, 3);
/* ARBITRATION_MASK to unmasked */
REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x0, 2, 2);
/* DONE_POL to high */
REG_FLD_MOD(base, HDMI_CORE_I2CM_INT, 0x1, 3, 3);
/* DONE_MASK to unmasked */
REG_FLD_MOD(base, HDMI_CORE_I2CM_INT, 0x0, 2, 2);
}
void hdmi5_core_ddc_uninit(struct hdmi_core_data *core)
{
void __iomem *base = core->base;
/* Mask I2C interrupts */
REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x1, 6, 6);
REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x1, 2, 2);
REG_FLD_MOD(base, HDMI_CORE_I2CM_INT, 0x1, 2, 2);
}
int hdmi5_core_ddc_read(void *data, u8 *buf, unsigned int block, size_t len)
{
struct hdmi_core_data *core = data;
void __iomem *base = core->base;
u8 cur_addr;
const int retries = 1000;
u8 seg_ptr = block / 2;
u8 edidbase = ((block % 2) * EDID_LENGTH);
REG_FLD_MOD(base, HDMI_CORE_I2CM_SEGPTR, seg_ptr, 7, 0);
/*
* TODO: We use polling here, although we probably should use proper
* interrupts.
*/
for (cur_addr = 0; cur_addr < len; ++cur_addr) {
int i;
/* clear ERROR and DONE */
REG_FLD_MOD(base, HDMI_CORE_IH_I2CM_STAT0, 0x3, 1, 0);
REG_FLD_MOD(base, HDMI_CORE_I2CM_ADDRESS,
edidbase + cur_addr, 7, 0);
if (seg_ptr)
REG_FLD_MOD(base, HDMI_CORE_I2CM_OPERATION, 1, 1, 1);
else
REG_FLD_MOD(base, HDMI_CORE_I2CM_OPERATION, 1, 0, 0);
for (i = 0; i < retries; ++i) {
u32 stat;
stat = REG_GET(base, HDMI_CORE_IH_I2CM_STAT0, 1, 0);
/* I2CM_ERROR */
if (stat & 1) {
DSSERR("HDMI I2C Master Error\n");
return -EIO;
}
/* I2CM_DONE */
if (stat & (1 << 1))
break;
usleep_range(250, 1000);
}
if (i == retries) {
DSSERR("HDMI I2C timeout reading EDID\n");
return -EIO;
}
buf[cur_addr] = REG_GET(base, HDMI_CORE_I2CM_DATAI, 7, 0);
}
return 0;
}
void hdmi5_core_dump(struct hdmi_core_data *core, struct seq_file *s)
{
#define DUMPCORE(r) seq_printf(s, "%-35s %08x\n", #r,\
hdmi_read_reg(core->base, r))
DUMPCORE(HDMI_CORE_FC_INVIDCONF);
DUMPCORE(HDMI_CORE_FC_INHACTIV0);
DUMPCORE(HDMI_CORE_FC_INHACTIV1);
DUMPCORE(HDMI_CORE_FC_INHBLANK0);
DUMPCORE(HDMI_CORE_FC_INHBLANK1);
DUMPCORE(HDMI_CORE_FC_INVACTIV0);
DUMPCORE(HDMI_CORE_FC_INVACTIV1);
DUMPCORE(HDMI_CORE_FC_INVBLANK);
DUMPCORE(HDMI_CORE_FC_HSYNCINDELAY0);
DUMPCORE(HDMI_CORE_FC_HSYNCINDELAY1);
DUMPCORE(HDMI_CORE_FC_HSYNCINWIDTH0);
DUMPCORE(HDMI_CORE_FC_HSYNCINWIDTH1);
DUMPCORE(HDMI_CORE_FC_VSYNCINDELAY);
DUMPCORE(HDMI_CORE_FC_VSYNCINWIDTH);
DUMPCORE(HDMI_CORE_FC_CTRLDUR);
DUMPCORE(HDMI_CORE_FC_EXCTRLDUR);
DUMPCORE(HDMI_CORE_FC_EXCTRLSPAC);
DUMPCORE(HDMI_CORE_FC_CH0PREAM);
DUMPCORE(HDMI_CORE_FC_CH1PREAM);
DUMPCORE(HDMI_CORE_FC_CH2PREAM);
DUMPCORE(HDMI_CORE_FC_AVICONF0);
DUMPCORE(HDMI_CORE_FC_AVICONF1);
DUMPCORE(HDMI_CORE_FC_AVICONF2);
DUMPCORE(HDMI_CORE_FC_AVIVID);
DUMPCORE(HDMI_CORE_FC_PRCONF);
DUMPCORE(HDMI_CORE_MC_CLKDIS);
DUMPCORE(HDMI_CORE_MC_SWRSTZREQ);
DUMPCORE(HDMI_CORE_MC_FLOWCTRL);
DUMPCORE(HDMI_CORE_MC_PHYRSTZ);
DUMPCORE(HDMI_CORE_MC_LOCKONCLOCK);
DUMPCORE(HDMI_CORE_I2CM_SLAVE);
DUMPCORE(HDMI_CORE_I2CM_ADDRESS);
DUMPCORE(HDMI_CORE_I2CM_DATAO);
DUMPCORE(HDMI_CORE_I2CM_DATAI);
DUMPCORE(HDMI_CORE_I2CM_OPERATION);
DUMPCORE(HDMI_CORE_I2CM_INT);
DUMPCORE(HDMI_CORE_I2CM_CTLINT);
DUMPCORE(HDMI_CORE_I2CM_DIV);
DUMPCORE(HDMI_CORE_I2CM_SEGADDR);
DUMPCORE(HDMI_CORE_I2CM_SOFTRSTZ);
DUMPCORE(HDMI_CORE_I2CM_SEGPTR);
DUMPCORE(HDMI_CORE_I2CM_SS_SCL_HCNT_1_ADDR);
DUMPCORE(HDMI_CORE_I2CM_SS_SCL_HCNT_0_ADDR);
DUMPCORE(HDMI_CORE_I2CM_SS_SCL_LCNT_1_ADDR);
DUMPCORE(HDMI_CORE_I2CM_SS_SCL_LCNT_0_ADDR);
DUMPCORE(HDMI_CORE_I2CM_FS_SCL_HCNT_1_ADDR);
DUMPCORE(HDMI_CORE_I2CM_FS_SCL_HCNT_0_ADDR);
DUMPCORE(HDMI_CORE_I2CM_FS_SCL_LCNT_1_ADDR);
DUMPCORE(HDMI_CORE_I2CM_FS_SCL_LCNT_0_ADDR);
DUMPCORE(HDMI_CORE_I2CM_SDA_HOLD_ADDR);
}
static void hdmi_core_init(struct hdmi_core_vid_config *video_cfg,
const struct hdmi_config *cfg)
{
DSSDBG("hdmi_core_init\n");
video_cfg->v_fc_config.vm = cfg->vm;
/* video core */
video_cfg->data_enable_pol = 1; /* It is always 1*/
video_cfg->hblank = cfg->vm.hfront_porch +
cfg->vm.hback_porch + cfg->vm.hsync_len;
video_cfg->vblank_osc = 0;
video_cfg->vblank = cfg->vm.vsync_len + cfg->vm.vfront_porch +
cfg->vm.vback_porch;
video_cfg->v_fc_config.hdmi_dvi_mode = cfg->hdmi_dvi_mode;
if (cfg->vm.flags & DISPLAY_FLAGS_INTERLACED) {
/* set vblank_osc if vblank is fractional */
if (video_cfg->vblank % 2 != 0)
video_cfg->vblank_osc = 1;
video_cfg->v_fc_config.vm.vactive /= 2;
video_cfg->vblank /= 2;
video_cfg->v_fc_config.vm.vfront_porch /= 2;
video_cfg->v_fc_config.vm.vsync_len /= 2;
video_cfg->v_fc_config.vm.vback_porch /= 2;
}
if (cfg->vm.flags & DISPLAY_FLAGS_DOUBLECLK) {
video_cfg->v_fc_config.vm.hactive *= 2;
video_cfg->hblank *= 2;
video_cfg->v_fc_config.vm.hfront_porch *= 2;
video_cfg->v_fc_config.vm.hsync_len *= 2;
video_cfg->v_fc_config.vm.hback_porch *= 2;
}
}
/* DSS_HDMI_CORE_VIDEO_CONFIG */
static void hdmi_core_video_config(struct hdmi_core_data *core,
const struct hdmi_core_vid_config *cfg)
{
void __iomem *base = core->base;
const struct videomode *vm = &cfg->v_fc_config.vm;
unsigned char r = 0;
bool vsync_pol, hsync_pol;
vsync_pol = !!(vm->flags & DISPLAY_FLAGS_VSYNC_HIGH);
hsync_pol = !!(vm->flags & DISPLAY_FLAGS_HSYNC_HIGH);
/* Set hsync, vsync and data-enable polarity */
r = hdmi_read_reg(base, HDMI_CORE_FC_INVIDCONF);
r = FLD_MOD(r, vsync_pol, 6, 6);
r = FLD_MOD(r, hsync_pol, 5, 5);
r = FLD_MOD(r, cfg->data_enable_pol, 4, 4);
r = FLD_MOD(r, cfg->vblank_osc, 1, 1);
r = FLD_MOD(r, !!(vm->flags & DISPLAY_FLAGS_INTERLACED), 0, 0);
hdmi_write_reg(base, HDMI_CORE_FC_INVIDCONF, r);
/* set x resolution */
REG_FLD_MOD(base, HDMI_CORE_FC_INHACTIV1, vm->hactive >> 8, 4, 0);
REG_FLD_MOD(base, HDMI_CORE_FC_INHACTIV0, vm->hactive & 0xFF, 7, 0);
/* set y resolution */
REG_FLD_MOD(base, HDMI_CORE_FC_INVACTIV1, vm->vactive >> 8, 4, 0);
REG_FLD_MOD(base, HDMI_CORE_FC_INVACTIV0, vm->vactive & 0xFF, 7, 0);
/* set horizontal blanking pixels */
REG_FLD_MOD(base, HDMI_CORE_FC_INHBLANK1, cfg->hblank >> 8, 4, 0);
REG_FLD_MOD(base, HDMI_CORE_FC_INHBLANK0, cfg->hblank & 0xFF, 7, 0);
/* set vertial blanking pixels */
REG_FLD_MOD(base, HDMI_CORE_FC_INVBLANK, cfg->vblank, 7, 0);
/* set horizontal sync offset */
REG_FLD_MOD(base, HDMI_CORE_FC_HSYNCINDELAY1, vm->hfront_porch >> 8,
4, 0);
REG_FLD_MOD(base, HDMI_CORE_FC_HSYNCINDELAY0, vm->hfront_porch & 0xFF,
7, 0);
/* set vertical sync offset */
REG_FLD_MOD(base, HDMI_CORE_FC_VSYNCINDELAY, vm->vfront_porch, 7, 0);
/* set horizontal sync pulse width */
REG_FLD_MOD(base, HDMI_CORE_FC_HSYNCINWIDTH1, (vm->hsync_len >> 8),
1, 0);
REG_FLD_MOD(base, HDMI_CORE_FC_HSYNCINWIDTH0, vm->hsync_len & 0xFF,
7, 0);
/* set vertical sync pulse width */
REG_FLD_MOD(base, HDMI_CORE_FC_VSYNCINWIDTH, vm->vsync_len, 5, 0);
/* select DVI mode */
REG_FLD_MOD(base, HDMI_CORE_FC_INVIDCONF,
cfg->v_fc_config.hdmi_dvi_mode, 3, 3);
if (vm->flags & DISPLAY_FLAGS_DOUBLECLK)
REG_FLD_MOD(base, HDMI_CORE_FC_PRCONF, 2, 7, 4);
else
REG_FLD_MOD(base, HDMI_CORE_FC_PRCONF, 1, 7, 4);
}
static void hdmi_core_config_video_packetizer(struct hdmi_core_data *core)
{
void __iomem *base = core->base;
int clr_depth = 0; /* 24 bit color depth */
/* COLOR_DEPTH */
REG_FLD_MOD(base, HDMI_CORE_VP_PR_CD, clr_depth, 7, 4);
/* BYPASS_EN */
REG_FLD_MOD(base, HDMI_CORE_VP_CONF, clr_depth ? 0 : 1, 6, 6);
/* PP_EN */
REG_FLD_MOD(base, HDMI_CORE_VP_CONF, clr_depth ? 1 : 0, 5, 5);
/* YCC422_EN */
REG_FLD_MOD(base, HDMI_CORE_VP_CONF, 0, 3, 3);
/* PP_STUFFING */
REG_FLD_MOD(base, HDMI_CORE_VP_STUFF, clr_depth ? 1 : 0, 1, 1);
/* YCC422_STUFFING */
REG_FLD_MOD(base, HDMI_CORE_VP_STUFF, 1, 2, 2);
/* OUTPUT_SELECTOR */
REG_FLD_MOD(base, HDMI_CORE_VP_CONF, clr_depth ? 0 : 2, 1, 0);
}
static void hdmi_core_config_video_sampler(struct hdmi_core_data *core)
{
int video_mapping = 1; /* for 24 bit color depth */
/* VIDEO_MAPPING */
REG_FLD_MOD(core->base, HDMI_CORE_TX_INVID0, video_mapping, 4, 0);
}
static void hdmi_core_write_avi_infoframe(struct hdmi_core_data *core,
struct hdmi_avi_infoframe *frame)
{
void __iomem *base = core->base;
u8 data[HDMI_INFOFRAME_SIZE(AVI)];
u8 *ptr;
unsigned int y, a, b, s;
unsigned int c, m, r;
unsigned int itc, ec, q, sc;
unsigned int vic;
unsigned int yq, cn, pr;
hdmi_avi_infoframe_pack(frame, data, sizeof(data));
print_hex_dump_debug("AVI: ", DUMP_PREFIX_NONE, 16, 1, data,
HDMI_INFOFRAME_SIZE(AVI), false);
ptr = data + HDMI_INFOFRAME_HEADER_SIZE;
y = (ptr[0] >> 5) & 0x3;
a = (ptr[0] >> 4) & 0x1;
b = (ptr[0] >> 2) & 0x3;
s = (ptr[0] >> 0) & 0x3;
c = (ptr[1] >> 6) & 0x3;
m = (ptr[1] >> 4) & 0x3;
r = (ptr[1] >> 0) & 0xf;
itc = (ptr[2] >> 7) & 0x1;
ec = (ptr[2] >> 4) & 0x7;
q = (ptr[2] >> 2) & 0x3;
sc = (ptr[2] >> 0) & 0x3;
vic = ptr[3];
yq = (ptr[4] >> 6) & 0x3;
cn = (ptr[4] >> 4) & 0x3;
pr = (ptr[4] >> 0) & 0xf;
hdmi_write_reg(base, HDMI_CORE_FC_AVICONF0,
(a << 6) | (s << 4) | (b << 2) | (y << 0));
hdmi_write_reg(base, HDMI_CORE_FC_AVICONF1,
(c << 6) | (m << 4) | (r << 0));
hdmi_write_reg(base, HDMI_CORE_FC_AVICONF2,
(itc << 7) | (ec << 4) | (q << 2) | (sc << 0));
hdmi_write_reg(base, HDMI_CORE_FC_AVIVID, vic);
hdmi_write_reg(base, HDMI_CORE_FC_AVICONF3,
(yq << 2) | (cn << 0));
REG_FLD_MOD(base, HDMI_CORE_FC_PRCONF, pr, 3, 0);
}
static void hdmi_core_write_csc(struct hdmi_core_data *core,
const struct csc_table *csc_coeff)
{
void __iomem *base = core->base;
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A1_MSB, csc_coeff->a1 >> 8, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A1_LSB, csc_coeff->a1, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A2_MSB, csc_coeff->a2 >> 8, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A2_LSB, csc_coeff->a2, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A3_MSB, csc_coeff->a3 >> 8, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A3_LSB, csc_coeff->a3, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A4_MSB, csc_coeff->a4 >> 8, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A4_LSB, csc_coeff->a4, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B1_MSB, csc_coeff->b1 >> 8, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B1_LSB, csc_coeff->b1, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B2_MSB, csc_coeff->b2 >> 8, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B2_LSB, csc_coeff->b2, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B3_MSB, csc_coeff->b3 >> 8, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B3_LSB, csc_coeff->b3, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B4_MSB, csc_coeff->b4 >> 8, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B4_LSB, csc_coeff->b4, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C1_MSB, csc_coeff->c1 >> 8, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C1_LSB, csc_coeff->c1, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C2_MSB, csc_coeff->c2 >> 8, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C2_LSB, csc_coeff->c2, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C3_MSB, csc_coeff->c3 >> 8, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C3_LSB, csc_coeff->c3, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C4_MSB, csc_coeff->c4 >> 8, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C4_LSB, csc_coeff->c4, 7, 0);
/* enable CSC */
REG_FLD_MOD(base, HDMI_CORE_MC_FLOWCTRL, 0x1, 0, 0);
}
static void hdmi_core_configure_range(struct hdmi_core_data *core,
enum hdmi_quantization_range range)
{
static const struct csc_table csc_limited_range = {
7036, 0, 0, 32, 0, 7036, 0, 32, 0, 0, 7036, 32
};
static const struct csc_table csc_full_range = {
8192, 0, 0, 0, 0, 8192, 0, 0, 0, 0, 8192, 0
};
const struct csc_table *csc_coeff;
/* CSC_COLORDEPTH = 24 bits*/
REG_FLD_MOD(core->base, HDMI_CORE_CSC_SCALE, 0, 7, 4);
switch (range) {
case HDMI_QUANTIZATION_RANGE_FULL:
csc_coeff = &csc_full_range;
break;
case HDMI_QUANTIZATION_RANGE_DEFAULT:
case HDMI_QUANTIZATION_RANGE_LIMITED:
default:
csc_coeff = &csc_limited_range;
break;
}
hdmi_core_write_csc(core, csc_coeff);
}
static void hdmi_core_enable_video_path(struct hdmi_core_data *core)
{
void __iomem *base = core->base;
DSSDBG("hdmi_core_enable_video_path\n");
REG_FLD_MOD(base, HDMI_CORE_FC_CTRLDUR, 0x0C, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_FC_EXCTRLDUR, 0x20, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_FC_EXCTRLSPAC, 0x01, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_FC_CH0PREAM, 0x0B, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_FC_CH1PREAM, 0x16, 5, 0);
REG_FLD_MOD(base, HDMI_CORE_FC_CH2PREAM, 0x21, 5, 0);
REG_FLD_MOD(base, HDMI_CORE_MC_CLKDIS, 0x00, 0, 0);
REG_FLD_MOD(base, HDMI_CORE_MC_CLKDIS, 0x00, 1, 1);
}
static void hdmi_core_mask_interrupts(struct hdmi_core_data *core)
{
void __iomem *base = core->base;
/* Master IRQ mask */
REG_FLD_MOD(base, HDMI_CORE_IH_MUTE, 0x3, 1, 0);
/* Mask all the interrupts in HDMI core */
REG_FLD_MOD(base, HDMI_CORE_VP_MASK, 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_FC_MASK0, 0xe7, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_FC_MASK1, 0xfb, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_FC_MASK2, 0x3, 1, 0);
REG_FLD_MOD(base, HDMI_CORE_AUD_INT, 0x3, 3, 2);
REG_FLD_MOD(base, HDMI_CORE_AUD_GP_MASK, 0x3, 1, 0);
REG_FLD_MOD(base, HDMI_CORE_CEC_MASK, 0x7f, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x1, 6, 6);
REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x1, 2, 2);
REG_FLD_MOD(base, HDMI_CORE_I2CM_INT, 0x1, 2, 2);
REG_FLD_MOD(base, HDMI_CORE_PHY_MASK0, 0xf3, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_PHY_STAT0, 0xff, 7, 0);
/* Clear all the current interrupt bits */
REG_FLD_MOD(base, HDMI_CORE_IH_VP_STAT0, 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT0, 0xe7, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT1, 0xfb, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT2, 0x3, 1, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_AS_STAT0, 0x7, 2, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_CEC_STAT0, 0x7f, 6, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_I2CM_STAT0, 0x3, 1, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_PHY_STAT0, 0xff, 7, 0);
}
static void hdmi_core_enable_interrupts(struct hdmi_core_data *core)
{
/* Unmute interrupts */
REG_FLD_MOD(core->base, HDMI_CORE_IH_MUTE, 0x0, 1, 0);
}
int hdmi5_core_handle_irqs(struct hdmi_core_data *core)
{
void __iomem *base = core->base;
REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT0, 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT1, 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT2, 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_AS_STAT0, 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_PHY_STAT0, 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_I2CM_STAT0, 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_CEC_STAT0, 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_VP_STAT0, 0xff, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_IH_I2CMPHY_STAT0, 0xff, 7, 0);
return 0;
}
void hdmi5_configure(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
struct hdmi_config *cfg)
{
struct videomode vm;
struct hdmi_video_format video_format;
struct hdmi_core_vid_config v_core_cfg;
enum hdmi_quantization_range range;
hdmi_core_mask_interrupts(core);
if (cfg->hdmi_dvi_mode == HDMI_HDMI) {
char vic = cfg->infoframe.video_code;
/* All CEA modes other than VIC 1 use limited quantization range. */
range = vic > 1 ? HDMI_QUANTIZATION_RANGE_LIMITED :
HDMI_QUANTIZATION_RANGE_FULL;
} else {
range = HDMI_QUANTIZATION_RANGE_FULL;
}
hdmi_core_init(&v_core_cfg, cfg);
hdmi_wp_init_vid_fmt_timings(&video_format, &vm, cfg);
hdmi_wp_video_config_timing(wp, &vm);
/* video config */
video_format.packing_mode = HDMI_PACK_24b_RGB_YUV444_YUV422;
hdmi_wp_video_config_format(wp, &video_format);
hdmi_wp_video_config_interface(wp, &vm);
hdmi_core_configure_range(core, range);
cfg->infoframe.quantization_range = range;
/*
* configure core video part, set software reset in the core
*/
v_core_cfg.packet_mode = HDMI_PACKETMODE24BITPERPIXEL;
hdmi_core_video_config(core, &v_core_cfg);
hdmi_core_config_video_packetizer(core);
hdmi_core_config_video_sampler(core);
if (cfg->hdmi_dvi_mode == HDMI_HDMI)
hdmi_core_write_avi_infoframe(core, &cfg->infoframe);
hdmi_core_enable_video_path(core);
hdmi_core_enable_interrupts(core);
}
static void hdmi5_core_audio_config(struct hdmi_core_data *core,
struct hdmi_core_audio_config *cfg)
{
void __iomem *base = core->base;
u8 val;
/* Mute audio before configuring */
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCONF, 0xf, 7, 4);
/* Set the N parameter */
REG_FLD_MOD(base, HDMI_CORE_AUD_N1, cfg->n, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_AUD_N2, cfg->n >> 8, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_AUD_N3, cfg->n >> 16, 3, 0);
/*
* CTS manual mode. Automatic mode is not supported when using audio
* parallel interface.
*/
REG_FLD_MOD(base, HDMI_CORE_AUD_CTS3, 1, 4, 4);
REG_FLD_MOD(base, HDMI_CORE_AUD_CTS1, cfg->cts, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_AUD_CTS2, cfg->cts >> 8, 7, 0);
REG_FLD_MOD(base, HDMI_CORE_AUD_CTS3, cfg->cts >> 16, 3, 0);
/* Layout of Audio Sample Packets: 2-channel or multichannels */
if (cfg->layout == HDMI_AUDIO_LAYOUT_2CH)
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCONF, 0, 0, 0);
else
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCONF, 1, 0, 0);
/* Configure IEC-609580 Validity bits */
/* Channel 0 is valid */
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, 0, 0, 0);
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, 0, 4, 4);
if (cfg->layout == HDMI_AUDIO_LAYOUT_2CH)
val = 1;
else
val = 0;
/* Channels 1, 2 setting */
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, val, 1, 1);
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, val, 5, 5);
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, val, 2, 2);
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, val, 6, 6);
/* Channel 3 setting */
if (cfg->layout == HDMI_AUDIO_LAYOUT_6CH)
val = 1;
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, val, 3, 3);
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, val, 7, 7);
/* Configure IEC-60958 User bits */
/* TODO: should be set by user. */
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSU, 0, 7, 0);
/* Configure IEC-60958 Channel Status word */
/* CGMSA */
val = cfg->iec60958_cfg->status[5] & IEC958_AES5_CON_CGMSA;
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(0), val, 5, 4);
/* Copyright */
val = (cfg->iec60958_cfg->status[0] &
IEC958_AES0_CON_NOT_COPYRIGHT) >> 2;
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(0), val, 0, 0);
/* Category */
hdmi_write_reg(base, HDMI_CORE_FC_AUDSCHNLS(1),
cfg->iec60958_cfg->status[1]);
/* PCM audio mode */
val = (cfg->iec60958_cfg->status[0] & IEC958_AES0_CON_MODE) >> 6;
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(2), val, 6, 4);
/* Source number */
val = cfg->iec60958_cfg->status[2] & IEC958_AES2_CON_SOURCE;
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(2), val, 3, 0);
/* Channel number right 0 */
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(3), 2, 3, 0);
/* Channel number right 1*/
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(3), 4, 7, 4);
/* Channel number right 2 */
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(4), 6, 3, 0);
/* Channel number right 3*/
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(4), 8, 7, 4);
/* Channel number left 0 */
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(5), 1, 3, 0);
/* Channel number left 1*/
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(5), 3, 7, 4);
/* Channel number left 2 */
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(6), 5, 3, 0);
/* Channel number left 3*/
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(6), 7, 7, 4);
/* Clock accuracy and sample rate */
hdmi_write_reg(base, HDMI_CORE_FC_AUDSCHNLS(7),
cfg->iec60958_cfg->status[3]);
/* Original sample rate and word length */
hdmi_write_reg(base, HDMI_CORE_FC_AUDSCHNLS(8),
cfg->iec60958_cfg->status[4]);
/* Enable FIFO empty and full interrupts */
REG_FLD_MOD(base, HDMI_CORE_AUD_INT, 3, 3, 2);
/* Configure GPA */
/* select HBR/SPDIF interfaces */
if (cfg->layout == HDMI_AUDIO_LAYOUT_2CH) {
/* select HBR/SPDIF interfaces */
REG_FLD_MOD(base, HDMI_CORE_AUD_CONF0, 0, 5, 5);
/* enable two channels in GPA */
REG_FLD_MOD(base, HDMI_CORE_AUD_GP_CONF1, 3, 7, 0);
} else if (cfg->layout == HDMI_AUDIO_LAYOUT_6CH) {
/* select HBR/SPDIF interfaces */
REG_FLD_MOD(base, HDMI_CORE_AUD_CONF0, 0, 5, 5);
/* enable six channels in GPA */
REG_FLD_MOD(base, HDMI_CORE_AUD_GP_CONF1, 0x3F, 7, 0);
} else {
/* select HBR/SPDIF interfaces */
REG_FLD_MOD(base, HDMI_CORE_AUD_CONF0, 0, 5, 5);
/* enable eight channels in GPA */
REG_FLD_MOD(base, HDMI_CORE_AUD_GP_CONF1, 0xFF, 7, 0);
}
/* disable HBR */
REG_FLD_MOD(base, HDMI_CORE_AUD_GP_CONF2, 0, 0, 0);
/* enable PCUV */
REG_FLD_MOD(base, HDMI_CORE_AUD_GP_CONF2, 1, 1, 1);
/* enable GPA FIFO full and empty mask */
REG_FLD_MOD(base, HDMI_CORE_AUD_GP_MASK, 3, 1, 0);
/* set polarity of GPA FIFO empty interrupts */
REG_FLD_MOD(base, HDMI_CORE_AUD_GP_POL, 1, 0, 0);
/* unmute audio */
REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCONF, 0, 7, 4);
}
static void hdmi5_core_audio_infoframe_cfg(struct hdmi_core_data *core,
struct snd_cea_861_aud_if *info_aud)
{
void __iomem *base = core->base;
/* channel count and coding type fields in AUDICONF0 are swapped */
hdmi_write_reg(base, HDMI_CORE_FC_AUDICONF0,
(info_aud->db1_ct_cc & CEA861_AUDIO_INFOFRAME_DB1CC) << 4 |
(info_aud->db1_ct_cc & CEA861_AUDIO_INFOFRAME_DB1CT) >> 4);
hdmi_write_reg(base, HDMI_CORE_FC_AUDICONF1, info_aud->db2_sf_ss);
hdmi_write_reg(base, HDMI_CORE_FC_AUDICONF2, info_aud->db4_ca);
hdmi_write_reg(base, HDMI_CORE_FC_AUDICONF3,
(info_aud->db5_dminh_lsv & CEA861_AUDIO_INFOFRAME_DB5_DM_INH) >> 3 |
(info_aud->db5_dminh_lsv & CEA861_AUDIO_INFOFRAME_DB5_LSV));
}
int hdmi5_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
struct omap_dss_audio *audio, u32 pclk)
{
struct hdmi_audio_format audio_format;
struct hdmi_audio_dma audio_dma;
struct hdmi_core_audio_config core_cfg;
int n, cts, channel_count;
unsigned int fs_nr;
bool word_length_16b = false;
if (!audio || !audio->iec || !audio->cea || !core)
return -EINVAL;
core_cfg.iec60958_cfg = audio->iec;
if (!(audio->iec->status[4] & IEC958_AES4_CON_MAX_WORDLEN_24) &&
(audio->iec->status[4] & IEC958_AES4_CON_WORDLEN_20_16))
word_length_16b = true;
/* only 16-bit word length supported atm */
if (!word_length_16b)
return -EINVAL;
switch (audio->iec->status[3] & IEC958_AES3_CON_FS) {
case IEC958_AES3_CON_FS_32000:
fs_nr = 32000;
break;
case IEC958_AES3_CON_FS_44100:
fs_nr = 44100;
break;
case IEC958_AES3_CON_FS_48000:
fs_nr = 48000;
break;
case IEC958_AES3_CON_FS_88200:
fs_nr = 88200;
break;
case IEC958_AES3_CON_FS_96000:
fs_nr = 96000;
break;
case IEC958_AES3_CON_FS_176400:
fs_nr = 176400;
break;
case IEC958_AES3_CON_FS_192000:
fs_nr = 192000;
break;
default:
return -EINVAL;
}
hdmi_compute_acr(pclk, fs_nr, &n, &cts);
core_cfg.n = n;
core_cfg.cts = cts;
/* Audio channels settings */
channel_count = (audio->cea->db1_ct_cc & CEA861_AUDIO_INFOFRAME_DB1CC)
+ 1;
if (channel_count == 2)
core_cfg.layout = HDMI_AUDIO_LAYOUT_2CH;
else if (channel_count == 6)
core_cfg.layout = HDMI_AUDIO_LAYOUT_6CH;
else
core_cfg.layout = HDMI_AUDIO_LAYOUT_8CH;
/* DMA settings */
if (word_length_16b)
audio_dma.transfer_size = 0x10;
else
audio_dma.transfer_size = 0x20;
audio_dma.block_size = 0xC0;
audio_dma.mode = HDMI_AUDIO_TRANSF_DMA;
audio_dma.fifo_threshold = 0x20; /* in number of samples */
/* audio FIFO format settings for 16-bit samples*/
audio_format.samples_per_word = HDMI_AUDIO_ONEWORD_TWOSAMPLES;
audio_format.sample_size = HDMI_AUDIO_SAMPLE_16BITS;
audio_format.justification = HDMI_AUDIO_JUSTIFY_LEFT;
audio_format.sample_order = HDMI_AUDIO_SAMPLE_LEFT_FIRST;
/* only LPCM atm */
audio_format.type = HDMI_AUDIO_TYPE_LPCM;
/* only allowed option */
audio_format.sample_order = HDMI_AUDIO_SAMPLE_LEFT_FIRST;
/* disable start/stop signals of IEC 60958 blocks */
audio_format.en_sig_blk_strt_end = HDMI_AUDIO_BLOCK_SIG_STARTEND_ON;
/* configure DMA and audio FIFO format*/
hdmi_wp_audio_config_dma(wp, &audio_dma);
hdmi_wp_audio_config_format(wp, &audio_format);
/* configure the core */
hdmi5_core_audio_config(core, &core_cfg);
/* configure CEA 861 audio infoframe */
hdmi5_core_audio_infoframe_cfg(core, audio->cea);
return 0;
}
int hdmi5_core_init(struct platform_device *pdev, struct hdmi_core_data *core)
{
core->base = devm_platform_ioremap_resource_byname(pdev, "core");
if (IS_ERR(core->base))
return PTR_ERR(core->base);
return 0;
}
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