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android / kernel / msm / 49608c8bfc75360f7ac54f539ce326b90034bc9d / . / drivers / video / msm / mdss / mdss_hdmi_tx.c
blob: c73941ad631a7675eedf58e3d1e446f2b8993415 [file] [log] [blame]
/* Copyright (c) 2010-2015, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/bitops.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/iopoll.h>
#include <linux/of_address.h>
#include <linux/of_gpio.h>
#include <linux/of_platform.h>
#include <linux/types.h>
#include <linux/msm_hdmi.h>
#define REG_DUMP 0
#include "mdss_debug.h"
#include "mdss_fb.h"
#include "mdss_hdmi_cec.h"
#include "mdss_hdmi_edid.h"
#include "mdss_hdmi_hdcp.h"
#include "mdss_hdmi_tx.h"
#include "mdss.h"
#include "mdss_panel.h"
#include "mdss_hdmi_mhl.h"
#define DRV_NAME "hdmi-tx"
#define COMPATIBLE_NAME "qcom,hdmi-tx"
#define DEFAULT_VIDEO_RESOLUTION HDMI_VFRMT_640x480p60_4_3
#define DEFAULT_HDMI_PRIMARY_RESOLUTION HDMI_VFRMT_1920x1080p60_16_9
/* HDMI PHY/PLL bit field macros */
#define SW_RESET BIT(2)
#define SW_RESET_PLL BIT(0)
#define HPD_DISCONNECT_POLARITY 0
#define HPD_CONNECT_POLARITY 1
/*
* Audio engine may take 1 to 3 sec to shutdown
* in normal cases. To handle worst cases, making
* timeout for audio engine shutdown as 5 sec.
*/
#define AUDIO_POLL_SLEEP_US (5 * 1000)
#define AUDIO_POLL_TIMEOUT_US (AUDIO_POLL_SLEEP_US * 1000)
#define IFRAME_CHECKSUM_32(d) \
((d & 0xff) + ((d >> 8) & 0xff) + \
((d >> 16) & 0xff) + ((d >> 24) & 0xff))
/* Enable HDCP by default */
static bool hdcp_feature_on = true;
/* Supported HDMI Audio channels */
#define MSM_HDMI_AUDIO_CHANNEL_2 2
#define MSM_HDMI_AUDIO_CHANNEL_3 3
#define MSM_HDMI_AUDIO_CHANNEL_4 4
#define MSM_HDMI_AUDIO_CHANNEL_5 5
#define MSM_HDMI_AUDIO_CHANNEL_6 6
#define MSM_HDMI_AUDIO_CHANNEL_7 7
#define MSM_HDMI_AUDIO_CHANNEL_8 8
/* AVI INFOFRAME DATA */
#define NUM_MODES_AVI 20
#define AVI_MAX_DATA_BYTES 13
enum {
DATA_BYTE_1,
DATA_BYTE_2,
DATA_BYTE_3,
DATA_BYTE_4,
DATA_BYTE_5,
DATA_BYTE_6,
DATA_BYTE_7,
DATA_BYTE_8,
DATA_BYTE_9,
DATA_BYTE_10,
DATA_BYTE_11,
DATA_BYTE_12,
DATA_BYTE_13,
};
#define IFRAME_PACKET_OFFSET 0x80
/*
* InfoFrame Type Code:
* 0x0 - Reserved
* 0x1 - Vendor Specific
* 0x2 - Auxiliary Video Information
* 0x3 - Source Product Description
* 0x4 - AUDIO
* 0x5 - MPEG Source
* 0x6 - NTSC VBI
* 0x7 - 0xFF - Reserved
*/
#define AVI_IFRAME_TYPE 0x2
#define AVI_IFRAME_VERSION 0x2
#define LEFT_SHIFT_BYTE(x) ((x) << 8)
#define LEFT_SHIFT_WORD(x) ((x) << 16)
#define LEFT_SHIFT_24BITS(x) ((x) << 24)
/* AVI Infoframe data byte 3, bit 7 (msb) represents ITC bit */
#define SET_ITC_BIT(byte) (byte = (byte | BIT(7)))
#define CLR_ITC_BIT(byte) (byte = (byte & ~BIT(7)))
/*
* CN represents IT content type, if ITC bit in infoframe data byte 3
* is set, CN bits will represent content type as below:
* 0b00 Graphics
* 0b01 Photo
* 0b10 Cinema
* 0b11 Game
*/
#define CONFIG_CN_BITS(bits, byte) \
(byte = (byte & ~(BIT(4) | BIT(5))) |\
((bits & (BIT(0) | BIT(1))) << 4))
enum msm_hdmi_supported_audio_sample_rates {
AUDIO_SAMPLE_RATE_32KHZ,
AUDIO_SAMPLE_RATE_44_1KHZ,
AUDIO_SAMPLE_RATE_48KHZ,
AUDIO_SAMPLE_RATE_88_2KHZ,
AUDIO_SAMPLE_RATE_96KHZ,
AUDIO_SAMPLE_RATE_176_4KHZ,
AUDIO_SAMPLE_RATE_192KHZ,
AUDIO_SAMPLE_RATE_MAX
};
enum hdmi_tx_hpd_states {
HPD_OFF,
HPD_ON,
HPD_ON_CONDITIONAL_MTP,
HPD_DISABLE,
HPD_ENABLE
};
/* parameters for clock regeneration */
struct hdmi_tx_audio_acr {
u32 n;
u32 cts;
};
struct hdmi_tx_audio_acr_arry {
u32 pclk;
struct hdmi_tx_audio_acr lut[AUDIO_SAMPLE_RATE_MAX];
};
static int hdmi_tx_set_mhl_hpd(struct platform_device *pdev, uint8_t on);
static int hdmi_tx_sysfs_enable_hpd(struct hdmi_tx_ctrl *hdmi_ctrl, int on);
static irqreturn_t hdmi_tx_isr(int irq, void *data);
static void hdmi_tx_hpd_off(struct hdmi_tx_ctrl *hdmi_ctrl);
static int hdmi_tx_enable_power(struct hdmi_tx_ctrl *hdmi_ctrl,
enum hdmi_tx_power_module_type module, int enable);
static inline void hdmi_tx_set_audio_switch_node(struct hdmi_tx_ctrl *hdmi_ctrl,
int val, bool force);
static int hdmi_tx_audio_setup(struct hdmi_tx_ctrl *hdmi_ctrl);
static void hdmi_tx_en_encryption(struct hdmi_tx_ctrl *hdmi_ctrl, u32 on);
static struct mdss_hw hdmi_tx_hw = {
.hw_ndx = MDSS_HW_HDMI,
.ptr = NULL,
.irq_handler = hdmi_tx_isr,
};
static struct dss_gpio hpd_gpio_config[] = {
{0, 1, COMPATIBLE_NAME "-hpd"},
{0, 1, COMPATIBLE_NAME "-mux-en"},
{0, 0, COMPATIBLE_NAME "-mux-sel"},
{0, 1, COMPATIBLE_NAME "-mux-lpm"}
};
static struct dss_gpio ddc_gpio_config[] = {
{0, 1, COMPATIBLE_NAME "-ddc-mux-sel"},
{0, 1, COMPATIBLE_NAME "-ddc-clk"},
{0, 1, COMPATIBLE_NAME "-ddc-data"}
};
static struct dss_gpio core_gpio_config[] = {
};
static struct dss_gpio cec_gpio_config[] = {
{0, 1, COMPATIBLE_NAME "-cec"}
};
const char *hdmi_pm_name(enum hdmi_tx_power_module_type module)
{
switch (module) {
case HDMI_TX_HPD_PM: return "HDMI_TX_HPD_PM";
case HDMI_TX_DDC_PM: return "HDMI_TX_DDC_PM";
case HDMI_TX_CORE_PM: return "HDMI_TX_CORE_PM";
case HDMI_TX_CEC_PM: return "HDMI_TX_CEC_PM";
default: return "???";
}
} /* hdmi_pm_name */
/*
* 13 Bytes of AVI infoframe data wrt each resolution
* Data Byte 01: 0 Y1 Y0 A0 B1 B0 S1 S0
* Data Byte 02: C1 C0 M1 M0 R3 R2 R1 R0
* Data Byte 03: ITC EC2 EC1 EC0 Q1 Q0 SC1 SC0
* Data Byte 04: 0 VIC6 VIC5 VIC4 VIC3 VIC2 VIC1 VIC0
* Data Byte 05: 0 0 0 0 PR3 PR2 PR1 PR0
* Data Byte 06: LSB Line No of End of Top Bar
* Data Byte 07: MSB Line No of End of Top Bar
* Data Byte 08: LSB Line No of Start of Bottom Bar
* Data Byte 09: MSB Line No of Start of Bottom Bar
* Data Byte 10: LSB Pixel Number of End of Left Bar
* Data Byte 11: MSB Pixel Number of End of Left Bar
* Data Byte 12: LSB Pixel Number of Start of Right Bar
* Data Byte 13: MSB Pixel Number of Start of Right Bar
*/
static u8 hdmi_tx_avi_iframe_lut[HDMI_EVFRMT_END + 1][AVI_MAX_DATA_BYTES] = {
[HDMI_VFRMT_720x480p60_4_3] = {
0x10, 0x18, 0x00, 0x02, 0x00, 0x00, 0x00,
0xE1, 0x01, 0x00, 0x00, 0xD1, 0x02},
[HDMI_VFRMT_720x480i60_16_9] = {
0x10, 0x18, 0x00, 0x07, 0x01, 0x00, 0x00,
0xE1, 0x01, 0x00, 0x00, 0xD1, 0x02},
[HDMI_VFRMT_720x576p50_16_9] = {
0x10, 0x28, 0x00, 0x12, 0x00, 0x00, 0x00,
0x41, 0x02, 0x00, 0x00, 0xD1, 0x02},
[HDMI_VFRMT_720x576i50_16_9] = {
0x10, 0x28, 0x00, 0x16, 0x01, 0x00, 0x00,
0x41, 0x02, 0x00, 0x00, 0xD1, 0x02},
[HDMI_VFRMT_1280x720p60_16_9] = {
0x10, 0x28, 0x00, 0x04, 0x00, 0x00, 0x00,
0xD1, 0x02, 0x00, 0x00, 0x01, 0x05},
[HDMI_VFRMT_1280x720p50_16_9] = {
0x10, 0x28, 0x00, 0x13, 0x00, 0x00, 0x00,
0xD1, 0x02, 0x00, 0x00, 0x01, 0x05},
[HDMI_VFRMT_1920x1080p60_16_9] = {
0x10, 0x28, 0x00, 0x10, 0x00, 0x00, 0x00,
0x39, 0x04, 0x00, 0x00, 0x81, 0x07},
[HDMI_VFRMT_1920x1080i60_16_9] = {
0x10, 0x28, 0x00, 0x05, 0x00, 0x00, 0x00,
0x39, 0x04, 0x00, 0x00, 0x81, 0x07},
[HDMI_VFRMT_1920x1080p50_16_9] = {
0x10, 0x28, 0x00, 0x1F, 0x00, 0x00, 0x00,
0x39, 0x04, 0x00, 0x00, 0x81, 0x07},
[HDMI_VFRMT_1920x1080i50_16_9] = {
0x10, 0x28, 0x00, 0x14, 0x00, 0x00, 0x00,
0x39, 0x04, 0x00, 0x00, 0x81, 0x07},
[HDMI_VFRMT_1920x1080p24_16_9] = {
0x10, 0x28, 0x00, 0x20, 0x00, 0x00, 0x00,
0x39, 0x04, 0x00, 0x00, 0x81, 0x07},
[HDMI_VFRMT_1920x1080p30_16_9] = {
0x10, 0x28, 0x00, 0x22, 0x00, 0x00, 0x00,
0x39, 0x04, 0x00, 0x00, 0x81, 0x07},
[HDMI_VFRMT_1920x1080p25_16_9] = {
0x10, 0x28, 0x00, 0x21, 0x00, 0x00, 0x00,
0x39, 0x04, 0x00, 0x00, 0x81, 0x07},
[HDMI_VFRMT_640x480p60_4_3] = {
0x10, 0x18, 0x00, 0x01, 0x00, 0x00, 0x00,
0xE1, 0x01, 0x00, 0x00, 0x81, 0x02},
[HDMI_VFRMT_720x480p60_16_9] = {
0x10, 0x28, 0x00, 0x03, 0x00, 0x00, 0x00,
0xE1, 0x01, 0x00, 0x00, 0xD1, 0x02},
[HDMI_VFRMT_720x576p50_4_3] = {
0x10, 0x18, 0x00, 0x11, 0x00, 0x00, 0x00,
0x41, 0x02, 0x00, 0x00, 0xD1, 0x02},
[HDMI_VFRMT_3840x2160p30_16_9] = {
0x10, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00,
0x71, 0x08, 0x00, 0x00, 0x01, 0x0F},
[HDMI_VFRMT_3840x2160p25_16_9] = {
0x10, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00,
0x71, 0x08, 0x00, 0x00, 0x01, 0x0F},
[HDMI_VFRMT_3840x2160p24_16_9] = {
0x10, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00,
0x71, 0x08, 0x00, 0x00, 0x01, 0x0F},
[HDMI_VFRMT_4096x2160p24_16_9] = {
0x10, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00,
0x71, 0x08, 0x00, 0x00, 0x01, 0x10}
}; /* hdmi_tx_avi_iframe_lut */
/* Audio constants lookup table for hdmi_tx_audio_acr_setup */
/* Valid Pixel-Clock rates: 25.2MHz, 27MHz, 27.03MHz, 74.25MHz, 148.5MHz */
static const struct hdmi_tx_audio_acr_arry hdmi_tx_audio_acr_lut[] = {
/* 25.200MHz */
{25200, {{4096, 25200}, {6272, 28000}, {6144, 25200}, {12544, 28000},
{12288, 25200}, {25088, 28000}, {24576, 25200} } },
/* 27.000MHz */
{27000, {{4096, 27000}, {6272, 30000}, {6144, 27000}, {12544, 30000},
{12288, 27000}, {25088, 30000}, {24576, 27000} } },
/* 27.027MHz */
{27027, {{4096, 27027}, {6272, 30030}, {6144, 27027}, {12544, 30030},
{12288, 27027}, {25088, 30030}, {24576, 27027} } },
/* 74.250MHz */
{74250, {{4096, 74250}, {6272, 82500}, {6144, 74250}, {12544, 82500},
{12288, 74250}, {25088, 82500}, {24576, 74250} } },
/* 148.500MHz */
{148500, {{4096, 148500}, {6272, 165000}, {6144, 148500},
{12544, 165000}, {12288, 148500}, {25088, 165000},
{24576, 148500} } },
/* 297.000MHz */
{297000, {{3072, 222750}, {4704, 247500}, {5120, 247500},
{9408, 247500}, {10240, 247500}, {18816, 247500},
{20480, 247500} } },
};
int register_hdmi_cable_notification(struct hdmi_cable_notify *handler)
{
struct hdmi_tx_ctrl *hdmi_ctrl = NULL;
struct list_head *pos;
if (!hdmi_tx_hw.ptr) {
DEV_WARN("%s: HDMI Tx core not ready\n", __func__);
return -EPROBE_DEFER;
}
if (!handler) {
DEV_ERR("%s: Empty handler\n", __func__);
return -ENODEV;
}
hdmi_ctrl = (struct hdmi_tx_ctrl *) hdmi_tx_hw.ptr;
mutex_lock(&hdmi_ctrl->cable_notify_mutex);
handler->status = hdmi_ctrl->hpd_state;
list_for_each(pos, &hdmi_ctrl->cable_notify_handlers);
list_add_tail(&handler->link, pos);
mutex_unlock(&hdmi_ctrl->cable_notify_mutex);
return handler->status;
} /* register_hdmi_cable_notification */
int unregister_hdmi_cable_notification(struct hdmi_cable_notify *handler)
{
struct hdmi_tx_ctrl *hdmi_ctrl = NULL;
if (!hdmi_tx_hw.ptr) {
DEV_WARN("%s: HDMI Tx core not ready\n", __func__);
return -ENODEV;
}
if (!handler) {
DEV_ERR("%s: Empty handler\n", __func__);
return -ENODEV;
}
hdmi_ctrl = (struct hdmi_tx_ctrl *) hdmi_tx_hw.ptr;
mutex_lock(&hdmi_ctrl->cable_notify_mutex);
list_del(&handler->link);
mutex_unlock(&hdmi_ctrl->cable_notify_mutex);
return 0;
} /* unregister_hdmi_cable_notification */
static void hdmi_tx_cable_notify_work(struct work_struct *work)
{
struct hdmi_tx_ctrl *hdmi_ctrl = NULL;
struct hdmi_cable_notify *pos;
hdmi_ctrl = container_of(work, struct hdmi_tx_ctrl, cable_notify_work);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid hdmi data\n", __func__);
return;
}
mutex_lock(&hdmi_ctrl->cable_notify_mutex);
list_for_each_entry(pos, &hdmi_ctrl->cable_notify_handlers, link) {
if (pos->status != hdmi_ctrl->hpd_state) {
pos->status = hdmi_ctrl->hpd_state;
pos->hpd_notify(pos);
}
}
mutex_unlock(&hdmi_ctrl->cable_notify_mutex);
} /* hdmi_tx_cable_notify_work */
static bool hdmi_tx_is_cea_format(int mode)
{
bool cea_fmt;
if ((mode > 0) && (mode <= HDMI_EVFRMT_END))
cea_fmt = true;
else
cea_fmt = false;
DEV_DBG("%s: %s\n", __func__, cea_fmt ? "Yes" : "No");
return cea_fmt;
}
static const char *hdmi_tx_pm_name(enum hdmi_tx_power_module_type module)
{
switch (module) {
case HDMI_TX_HPD_PM: return "HDMI_TX_HPD_PM";
case HDMI_TX_DDC_PM: return "HDMI_TX_DDC_PM";
case HDMI_TX_CORE_PM: return "HDMI_TX_CORE_PM";
case HDMI_TX_CEC_PM: return "HDMI_TX_CEC_PM";
default: return "???";
}
} /* hdmi_tx_pm_name */
static const char *hdmi_tx_io_name(u32 type)
{
switch (type) {
case HDMI_TX_CORE_IO: return "core_physical";
case HDMI_TX_PHY_IO: return "phy_physical";
case HDMI_TX_QFPROM_IO: return "qfprom_physical";
default: return NULL;
}
} /* hdmi_tx_io_name */
static int hdmi_tx_get_vic_from_panel_info(struct hdmi_tx_ctrl *hdmi_ctrl,
struct mdss_panel_info *pinfo)
{
int new_vic = -1;
u32 h_total, v_total;
struct msm_hdmi_mode_timing_info timing;
if (!hdmi_ctrl || !pinfo) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
if (pinfo->vic) {
if (hdmi_get_supported_mode(pinfo->vic)) {
new_vic = pinfo->vic;
DEV_DBG("%s: %s is supported\n", __func__,
msm_hdmi_mode_2string(new_vic));
} else {
DEV_ERR("%s: invalid or not supported vic %d\n",
__func__, pinfo->vic);
return -EPERM;
}
} else {
timing.active_h = pinfo->xres;
timing.back_porch_h = pinfo->lcdc.h_back_porch;
timing.front_porch_h = pinfo->lcdc.h_front_porch;
timing.pulse_width_h = pinfo->lcdc.h_pulse_width;
h_total = timing.active_h + timing.back_porch_h +
timing.front_porch_h + timing.pulse_width_h;
DEV_DBG("%s: ah=%d bph=%d fph=%d pwh=%d ht=%d\n", __func__,
timing.active_h, timing.back_porch_h,
timing.front_porch_h, timing.pulse_width_h, h_total);
timing.active_v = pinfo->yres;
timing.back_porch_v = pinfo->lcdc.v_back_porch;
timing.front_porch_v = pinfo->lcdc.v_front_porch;
timing.pulse_width_v = pinfo->lcdc.v_pulse_width;
v_total = timing.active_v + timing.back_porch_v +
timing.front_porch_v + timing.pulse_width_v;
DEV_DBG("%s: av=%d bpv=%d fpv=%d pwv=%d vt=%d\n", __func__,
timing.active_v, timing.back_porch_v,
timing.front_porch_v, timing.pulse_width_v, v_total);
timing.pixel_freq = pinfo->clk_rate / 1000;
if (h_total && v_total) {
timing.refresh_rate = ((timing.pixel_freq * 1000) /
(h_total * v_total)) * 1000;
} else {
DEV_ERR("%s: cannot cal refresh rate\n", __func__);
return -EPERM;
}
DEV_DBG("%s: pixel_freq=%d refresh_rate=%d\n", __func__,
timing.pixel_freq, timing.refresh_rate);
new_vic = hdmi_get_video_id_code(&timing);
}
return new_vic;
} /* hdmi_tx_get_vic_from_panel_info */
static inline void hdmi_tx_send_cable_notification(
struct hdmi_tx_ctrl *hdmi_ctrl, int val)
{
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
if (hdmi_ctrl->sdev.state != val)
switch_set_state(&hdmi_ctrl->sdev, val);
/* Notify all registered modules of cable connection status */
schedule_work(&hdmi_ctrl->cable_notify_work);
} /* hdmi_tx_send_cable_notification */
static inline u32 hdmi_tx_is_dvi_mode(struct hdmi_tx_ctrl *hdmi_ctrl)
{
return hdmi_edid_get_sink_mode(
hdmi_ctrl->feature_data[HDMI_TX_FEAT_EDID]) ? 0 : 1;
} /* hdmi_tx_is_dvi_mode */
static void hdmi_tx_wait_for_audio_engine(struct hdmi_tx_ctrl *hdmi_ctrl)
{
u64 status = 0;
u32 wait_for_vote = 50;
struct dss_io_data *io = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: core io not inititalized\n", __func__);
return;
}
/*
* wait for 5 sec max for audio engine to acknowledge if hdmi tx core
* can be safely turned off. Sleep for a reasonable time to make sure
* vote_hdmi_core_on variable is updated properly by audio.
*/
while (hdmi_ctrl->vote_hdmi_core_on && --wait_for_vote)
msleep(100);
if (!wait_for_vote)
DEV_ERR("%s: HDMI core still voted for power on\n", __func__);
if (readl_poll_timeout(io->base + HDMI_AUDIO_PKT_CTRL, status,
(status & BIT(0)) == 0, AUDIO_POLL_SLEEP_US,
AUDIO_POLL_TIMEOUT_US))
DEV_ERR("%s: Error turning off audio packet transmission.\n",
__func__);
if (readl_poll_timeout(io->base + HDMI_AUDIO_CFG, status,
(status & BIT(0)) == 0, AUDIO_POLL_SLEEP_US,
AUDIO_POLL_TIMEOUT_US))
DEV_ERR("%s: Error turning off audio engine.\n", __func__);
}
static struct hdmi_tx_ctrl *hdmi_tx_get_drvdata_from_panel_data(
struct mdss_panel_data *mpd)
{
struct hdmi_tx_ctrl *hdmi_ctrl = NULL;
if (mpd) {
hdmi_ctrl = container_of(mpd, struct hdmi_tx_ctrl, panel_data);
if (!hdmi_ctrl)
DEV_ERR("%s: hdmi_ctrl = NULL\n", __func__);
} else {
DEV_ERR("%s: mdss_panel_data = NULL\n", __func__);
}
return hdmi_ctrl;
} /* hdmi_tx_get_drvdata_from_panel_data */
static struct hdmi_tx_ctrl *hdmi_tx_get_drvdata_from_sysfs_dev(
struct device *device)
{
struct msm_fb_data_type *mfd = NULL;
struct mdss_panel_data *panel_data = NULL;
struct fb_info *fbi = dev_get_drvdata(device);
if (fbi) {
mfd = (struct msm_fb_data_type *)fbi->par;
panel_data = dev_get_platdata(&mfd->pdev->dev);
return hdmi_tx_get_drvdata_from_panel_data(panel_data);
} else {
DEV_ERR("%s: fbi = NULL\n", __func__);
return NULL;
}
} /* hdmi_tx_get_drvdata_from_sysfs_dev */
/* todo: Fix this. Right now this is declared in hdmi_util.h */
void *hdmi_get_featuredata_from_sysfs_dev(struct device *device,
u32 feature_type)
{
struct hdmi_tx_ctrl *hdmi_ctrl = NULL;
if (!device || feature_type >= HDMI_TX_FEAT_MAX) {
DEV_ERR("%s: invalid input\n", __func__);
return NULL;
}
hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(device);
if (hdmi_ctrl)
return hdmi_ctrl->feature_data[feature_type];
else
return NULL;
} /* hdmi_tx_get_featuredata_from_sysfs_dev */
EXPORT_SYMBOL(hdmi_get_featuredata_from_sysfs_dev);
static ssize_t hdmi_tx_sysfs_rda_connected(struct device *dev,
struct device_attribute *attr, char *buf)
{
ssize_t ret;
struct hdmi_tx_ctrl *hdmi_ctrl =
hdmi_tx_get_drvdata_from_sysfs_dev(dev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
mutex_lock(&hdmi_ctrl->mutex);
ret = snprintf(buf, PAGE_SIZE, "%d\n", hdmi_ctrl->hpd_state);
DEV_DBG("%s: '%d'\n", __func__, hdmi_ctrl->hpd_state);
mutex_unlock(&hdmi_ctrl->mutex);
return ret;
} /* hdmi_tx_sysfs_rda_connected */
static ssize_t hdmi_tx_sysfs_rda_video_mode(struct device *dev,
struct device_attribute *attr, char *buf)
{
ssize_t ret;
struct hdmi_tx_ctrl *hdmi_ctrl =
hdmi_tx_get_drvdata_from_sysfs_dev(dev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
mutex_lock(&hdmi_ctrl->mutex);
ret = snprintf(buf, PAGE_SIZE, "%d\n", hdmi_ctrl->video_resolution);
DEV_DBG("%s: '%d'\n", __func__, hdmi_ctrl->video_resolution);
mutex_unlock(&hdmi_ctrl->mutex);
return ret;
} /* hdmi_tx_sysfs_rda_video_mode */
static ssize_t hdmi_tx_sysfs_rda_hpd(struct device *dev,
struct device_attribute *attr, char *buf)
{
ssize_t ret;
struct hdmi_tx_ctrl *hdmi_ctrl =
hdmi_tx_get_drvdata_from_sysfs_dev(dev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
ret = snprintf(buf, PAGE_SIZE, "%d\n", hdmi_ctrl->hpd_feature_on);
DEV_DBG("%s: '%d'\n", __func__, hdmi_ctrl->hpd_feature_on);
return ret;
} /* hdmi_tx_sysfs_rda_hpd */
static ssize_t hdmi_tx_sysfs_wta_hpd(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
int hpd, rc = 0;
ssize_t ret = strnlen(buf, PAGE_SIZE);
struct hdmi_tx_ctrl *hdmi_ctrl = NULL;
DEV_DBG("%s:\n", __func__);
hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(dev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
rc = kstrtoint(buf, 10, &hpd);
if (rc) {
DEV_ERR("%s: kstrtoint failed. rc=%d\n", __func__, rc);
return rc;
}
if (hdmi_ctrl->mhl_max_pclk && hpd &&
(!hdmi_ctrl->mhl_hpd_on || hdmi_ctrl->hpd_feature_on))
return 0;
switch (hpd) {
case HPD_OFF:
case HPD_DISABLE:
if (hpd == HPD_DISABLE)
hdmi_ctrl->hpd_disabled = true;
if (!hdmi_ctrl->hpd_feature_on) {
DEV_DBG("%s: HPD is already off\n", __func__);
return ret;
}
rc = hdmi_tx_sysfs_enable_hpd(hdmi_ctrl, false);
if (hdmi_ctrl->panel_power_on && hdmi_ctrl->hpd_state) {
hdmi_tx_set_audio_switch_node(hdmi_ctrl, 0, false);
hdmi_tx_wait_for_audio_engine(hdmi_ctrl);
}
hdmi_tx_send_cable_notification(hdmi_ctrl, 0);
DEV_DBG("%s: Hdmi state switch to %d\n", __func__,
hdmi_ctrl->sdev.state);
break;
case HPD_ON:
if (hdmi_ctrl->hpd_disabled == true) {
DEV_ERR("%s: hpd is disabled, state %d not allowed\n",
__func__, hpd);
return ret;
}
if (hdmi_ctrl->pdata.cond_power_on) {
DEV_ERR("%s: hpd state %d not allowed w/ cond. hpd\n",
__func__, hpd);
return ret;
}
if (hdmi_ctrl->hpd_feature_on) {
DEV_DBG("%s: HPD is already on\n", __func__);
return ret;
}
rc = hdmi_tx_sysfs_enable_hpd(hdmi_ctrl, true);
break;
case HPD_ON_CONDITIONAL_MTP:
if (hdmi_ctrl->hpd_disabled == true) {
DEV_ERR("%s: hpd is disabled, state %d not allowed\n",
__func__, hpd);
return ret;
}
if (!hdmi_ctrl->pdata.cond_power_on) {
DEV_ERR("%s: hpd state %d not allowed w/o cond. hpd\n",
__func__, hpd);
return ret;
}
if (hdmi_ctrl->hpd_feature_on) {
DEV_DBG("%s: HPD is already on\n", __func__);
return ret;
}
rc = hdmi_tx_sysfs_enable_hpd(hdmi_ctrl, true);
break;
case HPD_ENABLE:
hdmi_ctrl->hpd_disabled = false;
rc = hdmi_tx_sysfs_enable_hpd(hdmi_ctrl, true);
break;
default:
DEV_ERR("%s: Invalid HPD state requested\n", __func__);
return ret;
}
if (!rc) {
hdmi_ctrl->hpd_feature_on =
(~hdmi_ctrl->hpd_feature_on) & BIT(0);
DEV_DBG("%s: '%d'\n", __func__, hdmi_ctrl->hpd_feature_on);
} else {
DEV_ERR("%s: failed to '%s' hpd. rc = %d\n", __func__,
hpd ? "enable" : "disable", rc);
ret = rc;
}
return ret;
} /* hdmi_tx_sysfs_wta_hpd */
static ssize_t hdmi_tx_sysfs_wta_vendor_name(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
ssize_t ret, sz;
u8 *s = (u8 *) buf;
u8 *d = NULL;
struct hdmi_tx_ctrl *hdmi_ctrl =
hdmi_tx_get_drvdata_from_sysfs_dev(dev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
d = hdmi_ctrl->spd_vendor_name;
ret = strnlen(buf, PAGE_SIZE);
ret = (ret > 8) ? 8 : ret;
sz = sizeof(hdmi_ctrl->spd_vendor_name);
memset(hdmi_ctrl->spd_vendor_name, 0, sz);
while (*s) {
if (*s & 0x60 && *s ^ 0x7f) {
*d = *s;
} else {
/* stop copying if control character found */
break;
}
if (++s > (u8 *) (buf + ret))
break;
d++;
}
hdmi_ctrl->spd_vendor_name[sz - 1] = 0;
DEV_DBG("%s: '%s'\n", __func__, hdmi_ctrl->spd_vendor_name);
return ret;
} /* hdmi_tx_sysfs_wta_vendor_name */
static ssize_t hdmi_tx_sysfs_rda_vendor_name(struct device *dev,
struct device_attribute *attr, char *buf)
{
ssize_t ret;
struct hdmi_tx_ctrl *hdmi_ctrl =
hdmi_tx_get_drvdata_from_sysfs_dev(dev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
ret = snprintf(buf, PAGE_SIZE, "%s\n", hdmi_ctrl->spd_vendor_name);
DEV_DBG("%s: '%s'\n", __func__, hdmi_ctrl->spd_vendor_name);
return ret;
} /* hdmi_tx_sysfs_rda_vendor_name */
static ssize_t hdmi_tx_sysfs_wta_product_description(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
ssize_t ret, sz;
u8 *s = (u8 *) buf;
u8 *d = NULL;
struct hdmi_tx_ctrl *hdmi_ctrl =
hdmi_tx_get_drvdata_from_sysfs_dev(dev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
d = hdmi_ctrl->spd_product_description;
ret = strnlen(buf, PAGE_SIZE);
ret = (ret > 16) ? 16 : ret;
sz = sizeof(hdmi_ctrl->spd_product_description);
memset(hdmi_ctrl->spd_product_description, 0, sz);
while (*s) {
if (*s & 0x60 && *s ^ 0x7f) {
*d = *s;
} else {
/* stop copying if control character found */
break;
}
if (++s > (u8 *) (buf + ret))
break;
d++;
}
hdmi_ctrl->spd_product_description[sz - 1] = 0;
DEV_DBG("%s: '%s'\n", __func__, hdmi_ctrl->spd_product_description);
return ret;
} /* hdmi_tx_sysfs_wta_product_description */
static ssize_t hdmi_tx_sysfs_rda_product_description(struct device *dev,
struct device_attribute *attr, char *buf)
{
ssize_t ret;
struct hdmi_tx_ctrl *hdmi_ctrl =
hdmi_tx_get_drvdata_from_sysfs_dev(dev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
ret = snprintf(buf, PAGE_SIZE, "%s\n",
hdmi_ctrl->spd_product_description);
DEV_DBG("%s: '%s'\n", __func__, hdmi_ctrl->spd_product_description);
return ret;
} /* hdmi_tx_sysfs_rda_product_description */
static ssize_t hdmi_tx_sysfs_wta_avi_itc(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
ssize_t ret = strnlen(buf, PAGE_SIZE);
struct hdmi_tx_ctrl *hdmi_ctrl = NULL;
int loop = 0, itc = 0, rc = 0;
hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(dev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
rc = kstrtoint(buf, 10, &itc);
if (rc) {
DEV_ERR("%s: kstrtoint failed. rc =%d\n", __func__, rc);
return rc;
}
if (itc < 0 || itc > 1) {
DEV_ERR("%s: Invalid ITC %d\n", __func__, itc);
return ret;
}
if (mutex_lock_interruptible(&hdmi_ctrl->lut_lock))
return -ERESTARTSYS;
for (loop = 0; loop < NUM_MODES_AVI; loop++) {
u8 *avi_infoframe = hdmi_tx_avi_iframe_lut[loop];
if (itc)
SET_ITC_BIT(avi_infoframe[DATA_BYTE_3]);
else
CLR_ITC_BIT(avi_infoframe[DATA_BYTE_3]);
}
mutex_unlock(&hdmi_ctrl->lut_lock);
return ret;
} /* hdmi_tx_sysfs_wta_avi_itc */
static ssize_t hdmi_tx_sysfs_wta_avi_cn_bits(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
ssize_t ret = strnlen(buf, PAGE_SIZE);
struct hdmi_tx_ctrl *hdmi_ctrl = NULL;
int loop = 0, cn_bits = 0, rc = 0;
hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(dev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
rc = kstrtoint(buf, 10, &cn_bits);
if (rc) {
DEV_ERR("%s: kstrtoint failed. rc=%d\n", __func__, rc);
return rc;
}
/* As per CEA-861-E, CN is a positive number and can be max 3 */
if (cn_bits < 0 || cn_bits > 3) {
DEV_ERR("%s: Invalid CN %d\n", __func__, cn_bits);
return ret;
}
if (mutex_lock_interruptible(&hdmi_ctrl->lut_lock))
return -ERESTARTSYS;
for (loop = 0; loop < NUM_MODES_AVI; loop++) {
u8 *avi_infoframe = hdmi_tx_avi_iframe_lut[loop];
CONFIG_CN_BITS(cn_bits, avi_infoframe[DATA_BYTE_5]);
}
mutex_unlock(&hdmi_ctrl->lut_lock);
return ret;
} /* hdmi_tx_sysfs_wta_cn_bits */
static DEVICE_ATTR(connected, S_IRUGO, hdmi_tx_sysfs_rda_connected, NULL);
static DEVICE_ATTR(video_mode, S_IRUGO, hdmi_tx_sysfs_rda_video_mode, NULL);
static DEVICE_ATTR(hpd, S_IRUGO | S_IWUSR, hdmi_tx_sysfs_rda_hpd,
hdmi_tx_sysfs_wta_hpd);
static DEVICE_ATTR(vendor_name, S_IRUGO | S_IWUSR,
hdmi_tx_sysfs_rda_vendor_name, hdmi_tx_sysfs_wta_vendor_name);
static DEVICE_ATTR(product_description, S_IRUGO | S_IWUSR,
hdmi_tx_sysfs_rda_product_description,
hdmi_tx_sysfs_wta_product_description);
static DEVICE_ATTR(avi_itc, S_IWUSR, NULL, hdmi_tx_sysfs_wta_avi_itc);
static DEVICE_ATTR(avi_cn0_1, S_IWUSR, NULL, hdmi_tx_sysfs_wta_avi_cn_bits);
static struct attribute *hdmi_tx_fs_attrs[] = {
&dev_attr_connected.attr,
&dev_attr_video_mode.attr,
&dev_attr_hpd.attr,
&dev_attr_vendor_name.attr,
&dev_attr_product_description.attr,
&dev_attr_avi_itc.attr,
&dev_attr_avi_cn0_1.attr,
NULL,
};
static struct attribute_group hdmi_tx_fs_attrs_group = {
.attrs = hdmi_tx_fs_attrs,
};
static int hdmi_tx_sysfs_create(struct hdmi_tx_ctrl *hdmi_ctrl,
struct fb_info *fbi)
{
int rc;
if (!hdmi_ctrl || !fbi) {
DEV_ERR("%s: invalid input\n", __func__);
return -ENODEV;
}
rc = sysfs_create_group(&fbi->dev->kobj,
&hdmi_tx_fs_attrs_group);
if (rc) {
DEV_ERR("%s: failed, rc=%d\n", __func__, rc);
return rc;
}
hdmi_ctrl->kobj = &fbi->dev->kobj;
DEV_DBG("%s: sysfs group %p\n", __func__, hdmi_ctrl->kobj);
return 0;
} /* hdmi_tx_sysfs_create */
static void hdmi_tx_sysfs_remove(struct hdmi_tx_ctrl *hdmi_ctrl)
{
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
if (hdmi_ctrl->kobj)
sysfs_remove_group(hdmi_ctrl->kobj, &hdmi_tx_fs_attrs_group);
hdmi_ctrl->kobj = NULL;
} /* hdmi_tx_sysfs_remove */
static inline void hdmi_tx_set_audio_switch_node(struct hdmi_tx_ctrl *hdmi_ctrl,
int val, bool force)
{
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
if (!hdmi_tx_is_dvi_mode(hdmi_ctrl) &&
(force || (hdmi_ctrl->audio_sdev.state != val))) {
switch_set_state(&hdmi_ctrl->audio_sdev, val);
DEV_INFO("%s: hdmi_audio state switched to %d\n", __func__,
hdmi_ctrl->audio_sdev.state);
}
} /* hdmi_tx_set_audio_switch_node */
static int hdmi_tx_config_avmute(struct hdmi_tx_ctrl *hdmi_ctrl, int set)
{
struct dss_io_data *io;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: Core io is not initialized\n", __func__);
return -EINVAL;
}
if (set)
DSS_REG_W(io, HDMI_GC,
DSS_REG_R(io, HDMI_GC) | BIT(0));
else
DSS_REG_W(io, HDMI_GC,
DSS_REG_R(io, HDMI_GC) & ~BIT(0));
/* Enable AV Mute tranmission here */
DSS_REG_W(io, HDMI_VBI_PKT_CTRL,
DSS_REG_R(io, HDMI_VBI_PKT_CTRL) | (BIT(4) & BIT(5)));
DEV_DBG("%s: AVMUTE %s\n", __func__, set ? "set" : "cleared");
return 0;
} /* hdmi_tx_config_avmute */
static void hdmi_tx_hdcp_cb(void *ptr, enum hdmi_hdcp_state status)
{
int rc = 0;
struct hdmi_tx_ctrl *hdmi_ctrl = (struct hdmi_tx_ctrl *)ptr;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
DEV_DBG("%s: HDCP status=%s hpd_state=%d\n", __func__,
hdcp_state_name(status), hdmi_ctrl->hpd_state);
switch (status) {
case HDCP_STATE_AUTHENTICATED:
if (hdmi_ctrl->hpd_state) {
if (hdmi_ctrl->pdata.primary)
hdmi_tx_en_encryption(hdmi_ctrl, true);
else
/* Clear AV Mute */
rc = hdmi_tx_config_avmute(hdmi_ctrl, 0);
hdmi_tx_set_audio_switch_node(hdmi_ctrl, 1, false);
}
break;
case HDCP_STATE_AUTH_FAIL:
hdmi_tx_set_audio_switch_node(hdmi_ctrl, 0, false);
if (hdmi_ctrl->hpd_state) {
if (hdmi_ctrl->pdata.primary)
hdmi_tx_en_encryption(hdmi_ctrl, false);
else
/* Set AV Mute */
rc = hdmi_tx_config_avmute(hdmi_ctrl, 1);
DEV_DBG("%s: Reauthenticating\n", __func__);
rc = hdmi_hdcp_reauthenticate(
hdmi_ctrl->feature_data[HDMI_TX_FEAT_HDCP]);
if (rc)
DEV_ERR("%s: HDCP reauth failed. rc=%d\n",
__func__, rc);
} else {
DEV_DBG("%s: Not reauthenticating. Cable not conn\n",
__func__);
}
break;
case HDCP_STATE_AUTHENTICATING:
case HDCP_STATE_INACTIVE:
default:
break;
/* do nothing */
}
}
/* Enable HDMI features */
static int hdmi_tx_init_features(struct hdmi_tx_ctrl *hdmi_ctrl)
{
struct hdmi_edid_init_data edid_init_data;
struct hdmi_hdcp_init_data hdcp_init_data;
struct hdmi_cec_init_data cec_init_data;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
/* Initialize EDID feature */
edid_init_data.io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
edid_init_data.mutex = &hdmi_ctrl->mutex;
edid_init_data.sysfs_kobj = hdmi_ctrl->kobj;
edid_init_data.ddc_ctrl = &hdmi_ctrl->ddc_ctrl;
hdmi_ctrl->feature_data[HDMI_TX_FEAT_EDID] =
hdmi_edid_init(&edid_init_data);
if (!hdmi_ctrl->feature_data[HDMI_TX_FEAT_EDID]) {
DEV_ERR("%s: hdmi_edid_init failed\n", __func__);
return -EPERM;
}
hdmi_edid_set_video_resolution(
hdmi_ctrl->feature_data[HDMI_TX_FEAT_EDID],
hdmi_ctrl->video_resolution);
/* Initialize HDCP feature */
if (hdmi_ctrl->present_hdcp) {
struct resource *res = NULL;
res = platform_get_resource_byname(hdmi_ctrl->pdev,
IORESOURCE_MEM, hdmi_tx_io_name(HDMI_TX_CORE_IO));
if (!res) {
DEV_ERR("%s: Error getting HDMI tx core resource\n",
__func__);
return -ENODEV;
}
hdcp_init_data.phy_addr = res->start;
hdcp_init_data.core_io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
hdcp_init_data.qfprom_io =
&hdmi_ctrl->pdata.io[HDMI_TX_QFPROM_IO];
hdcp_init_data.mutex = &hdmi_ctrl->mutex;
hdcp_init_data.sysfs_kobj = hdmi_ctrl->kobj;
hdcp_init_data.ddc_ctrl = &hdmi_ctrl->ddc_ctrl;
hdcp_init_data.workq = hdmi_ctrl->workq;
hdcp_init_data.notify_status = hdmi_tx_hdcp_cb;
hdcp_init_data.cb_data = (void *)hdmi_ctrl;
hdmi_ctrl->feature_data[HDMI_TX_FEAT_HDCP] =
hdmi_hdcp_init(&hdcp_init_data);
if (!hdmi_ctrl->feature_data[HDMI_TX_FEAT_HDCP]) {
DEV_ERR("%s: hdmi_hdcp_init failed\n", __func__);
hdmi_edid_deinit(hdmi_ctrl->feature_data[
HDMI_TX_FEAT_EDID]);
hdmi_ctrl->feature_data[HDMI_TX_FEAT_EDID] = NULL;
return -EPERM;
}
DEV_DBG("%s: HDCP feature initialized\n", __func__);
}
/* Initialize CEC feature */
cec_init_data.io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
cec_init_data.sysfs_kobj = hdmi_ctrl->kobj;
cec_init_data.workq = hdmi_ctrl->workq;
hdmi_ctrl->feature_data[HDMI_TX_FEAT_CEC] =
hdmi_cec_init(&cec_init_data);
if (!hdmi_ctrl->feature_data[HDMI_TX_FEAT_CEC])
DEV_WARN("%s: hdmi_cec_init failed\n", __func__);
return 0;
} /* hdmi_tx_init_features */
static inline u32 hdmi_tx_is_controller_on(struct hdmi_tx_ctrl *hdmi_ctrl)
{
struct dss_io_data *io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
return DSS_REG_R_ND(io, HDMI_CTRL) & BIT(0);
} /* hdmi_tx_is_controller_on */
static int hdmi_tx_init_panel_info(uint32_t resolution,
struct mdss_panel_info *pinfo)
{
const struct msm_hdmi_mode_timing_info *timing =
hdmi_get_supported_mode(resolution);
if (!timing || !pinfo) {
DEV_ERR("%s: invalid input.\n", __func__);
return -EINVAL;
}
pinfo->xres = timing->active_h;
pinfo->yres = timing->active_v;
pinfo->clk_rate = timing->pixel_freq*1000;
pinfo->lcdc.h_back_porch = timing->back_porch_h;
pinfo->lcdc.h_front_porch = timing->front_porch_h;
pinfo->lcdc.h_pulse_width = timing->pulse_width_h;
pinfo->lcdc.v_back_porch = timing->back_porch_v;
pinfo->lcdc.v_front_porch = timing->front_porch_v;
pinfo->lcdc.v_pulse_width = timing->pulse_width_v;
pinfo->type = DTV_PANEL;
pinfo->pdest = DISPLAY_2;
pinfo->wait_cycle = 0;
pinfo->bpp = 24;
pinfo->fb_num = 1;
pinfo->lcdc.border_clr = 0; /* blk */
pinfo->lcdc.underflow_clr = 0xff; /* blue */
pinfo->lcdc.hsync_skew = 0;
return 0;
} /* hdmi_tx_init_panel_info */
/* Table tuned to indicate video formats supported by the MHL Tx */
/* Valid pclk rates (Mhz): 25.2, 27, 27.03, 74.25 */
static void hdmi_tx_setup_mhl_video_mode_lut(struct hdmi_tx_ctrl *hdmi_ctrl)
{
u32 i;
struct msm_hdmi_mode_timing_info *temp_timing;
if (!hdmi_ctrl->mhl_max_pclk) {
DEV_WARN("%s: mhl max pclk not set!\n", __func__);
return;
}
DEV_DBG("%s: max mode set to [%u]\n",
__func__, hdmi_ctrl->mhl_max_pclk);
for (i = 0; i < HDMI_VFRMT_MAX; i++) {
temp_timing =
(struct msm_hdmi_mode_timing_info *)hdmi_get_supported_mode(i);
if (!temp_timing)
continue;
/* formats that exceed max mhl line clk bw */
if (temp_timing->pixel_freq > hdmi_ctrl->mhl_max_pclk)
hdmi_del_supported_mode(i);
}
} /* hdmi_tx_setup_mhl_video_mode_lut */
static int hdmi_tx_read_sink_info(struct hdmi_tx_ctrl *hdmi_ctrl)
{
int status;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
if (!hdmi_tx_is_controller_on(hdmi_ctrl)) {
DEV_ERR("%s: failed: HDMI controller is off", __func__);
status = -ENXIO;
goto error;
}
hdmi_ddc_config(&hdmi_ctrl->ddc_ctrl);
status = hdmi_edid_read(hdmi_ctrl->feature_data[HDMI_TX_FEAT_EDID]);
if (!status)
DEV_DBG("%s: hdmi_edid_read success\n", __func__);
else
DEV_ERR("%s: hdmi_edid_read failed\n", __func__);
error:
return status;
} /* hdmi_tx_read_sink_info */
static void hdmi_tx_hpd_int_work(struct work_struct *work)
{
struct hdmi_tx_ctrl *hdmi_ctrl = NULL;
struct dss_io_data *io;
hdmi_ctrl = container_of(work, struct hdmi_tx_ctrl, hpd_int_work);
if (!hdmi_ctrl || !hdmi_ctrl->hpd_initialized) {
DEV_DBG("%s: invalid input\n", __func__);
return;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
DEV_DBG("%s: Got HPD %s interrupt\n", __func__,
hdmi_ctrl->hpd_state ? "CONNECT" : "DISCONNECT");
if (hdmi_ctrl->hpd_state) {
/*
* If a down stream device or bridge chip is attached to hdmi
* Tx core output, it is likely that it might be powering the
* hpd module ON/OFF on cable connect/disconnect as it would
* have its own mechanism of detecting cable. Flush power off
* work is needed in case there is any race condidtion between
* power off and on during fast cable plug in/out.
*/
if (hdmi_ctrl->ds_registered)
flush_work(&hdmi_ctrl->power_off_work);
if (hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_DDC_PM, true)) {
DEV_ERR("%s: Failed to enable ddc power\n", __func__);
return;
}
/* Enable SW DDC before EDID read */
DSS_REG_W_ND(io, HDMI_DDC_ARBITRATION ,
DSS_REG_R(io, HDMI_DDC_ARBITRATION) & ~(BIT(4)));
hdmi_tx_read_sink_info(hdmi_ctrl);
hdmi_tx_send_cable_notification(hdmi_ctrl, 1);
DEV_INFO("%s: sense cable CONNECTED: state switch to %d\n",
__func__, hdmi_ctrl->sdev.state);
} else {
hdmi_tx_set_audio_switch_node(hdmi_ctrl, 0, false);
hdmi_tx_wait_for_audio_engine(hdmi_ctrl);
if (!hdmi_ctrl->panel_power_on) {
if (hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_DDC_PM,
false))
DEV_WARN("%s: Failed to disable ddc power\n",
__func__);
}
hdmi_tx_send_cable_notification(hdmi_ctrl, 0);
DEV_INFO("%s: sense cable DISCONNECTED: state switch to %d\n",
__func__, hdmi_ctrl->sdev.state);
}
if (!completion_done(&hdmi_ctrl->hpd_done))
complete_all(&hdmi_ctrl->hpd_done);
} /* hdmi_tx_hpd_int_work */
static int hdmi_tx_check_capability(struct hdmi_tx_ctrl *hdmi_ctrl)
{
u32 hdmi_disabled, hdcp_disabled;
struct dss_io_data *io = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_QFPROM_IO];
if (!io->base) {
DEV_ERR("%s: QFPROM io is not initialized\n", __func__);
return -EINVAL;
}
hdcp_disabled = DSS_REG_R_ND(io,
QFPROM_RAW_FEAT_CONFIG_ROW0_LSB) & BIT(31);
hdmi_disabled = DSS_REG_R_ND(io,
QFPROM_RAW_FEAT_CONFIG_ROW0_MSB) & BIT(0);
DEV_DBG("%s: Features <HDMI:%s, HDCP:%s>\n", __func__,
hdmi_disabled ? "OFF" : "ON", hdcp_disabled ? "OFF" : "ON");
if (hdmi_disabled) {
DEV_ERR("%s: HDMI disabled\n", __func__);
return -ENODEV;
}
if (hdcp_disabled) {
hdmi_ctrl->present_hdcp = 0;
DEV_WARN("%s: HDCP disabled\n", __func__);
} else {
hdmi_ctrl->present_hdcp = 1;
DEV_DBG("%s: Device is HDCP enabled\n", __func__);
}
return 0;
} /* hdmi_tx_check_capability */
static int hdmi_tx_set_video_fmt(struct hdmi_tx_ctrl *hdmi_ctrl,
struct mdss_panel_info *pinfo)
{
int new_vic = -1;
const struct msm_hdmi_mode_timing_info *timing = NULL;
if (!hdmi_ctrl || !pinfo) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
new_vic = hdmi_tx_get_vic_from_panel_info(hdmi_ctrl, pinfo);
if ((new_vic < 0) || (new_vic > HDMI_VFRMT_MAX)) {
DEV_ERR("%s: invalid or not supported vic\n", __func__);
return -EPERM;
}
DEV_DBG("%s: switching from %s => %s", __func__,
msm_hdmi_mode_2string(hdmi_ctrl->video_resolution),
msm_hdmi_mode_2string(new_vic));
hdmi_ctrl->video_resolution = (u32)new_vic;
timing = hdmi_get_supported_mode(hdmi_ctrl->video_resolution);
if (!timing) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
/* todo: find a better way */
hdmi_ctrl->pdata.power_data[HDMI_TX_CORE_PM].clk_config[0].rate =
timing->pixel_freq * 1000;
hdmi_edid_set_video_resolution(
hdmi_ctrl->feature_data[HDMI_TX_FEAT_EDID],
hdmi_ctrl->video_resolution);
return 0;
} /* hdmi_tx_set_video_fmt */
static int hdmi_tx_video_setup(struct hdmi_tx_ctrl *hdmi_ctrl,
int video_format)
{
u32 total_v = 0;
u32 total_h = 0;
u32 start_h = 0;
u32 end_h = 0;
u32 start_v = 0;
u32 end_v = 0;
struct dss_io_data *io = NULL;
const struct msm_hdmi_mode_timing_info *timing =
hdmi_get_supported_mode(video_format);
if (timing == NULL) {
DEV_ERR("%s: video format not supported: %d\n", __func__,
video_format);
return -EPERM;
}
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: Core io is not initialized\n", __func__);
return -EPERM;
}
total_h = timing->active_h + timing->front_porch_h +
timing->back_porch_h + timing->pulse_width_h - 1;
total_v = timing->active_v + timing->front_porch_v +
timing->back_porch_v + timing->pulse_width_v - 1;
if (((total_v << 16) & 0xE0000000) || (total_h & 0xFFFFE000)) {
DEV_ERR("%s: total v=%d or h=%d is larger than supported\n",
__func__, total_v, total_h);
return -EPERM;
}
DSS_REG_W(io, HDMI_TOTAL, (total_v << 16) | (total_h << 0));
start_h = timing->back_porch_h + timing->pulse_width_h;
end_h = (total_h + 1) - timing->front_porch_h;
if (((end_h << 16) & 0xE0000000) || (start_h & 0xFFFFE000)) {
DEV_ERR("%s: end_h=%d or start_h=%d is larger than supported\n",
__func__, end_h, start_h);
return -EPERM;
}
DSS_REG_W(io, HDMI_ACTIVE_H, (end_h << 16) | (start_h << 0));
start_v = timing->back_porch_v + timing->pulse_width_v - 1;
end_v = total_v - timing->front_porch_v;
if (((end_v << 16) & 0xE0000000) || (start_v & 0xFFFFE000)) {
DEV_ERR("%s: end_v=%d or start_v=%d is larger than supported\n",
__func__, end_v, start_v);
return -EPERM;
}
DSS_REG_W(io, HDMI_ACTIVE_V, (end_v << 16) | (start_v << 0));
if (timing->interlaced) {
DSS_REG_W(io, HDMI_V_TOTAL_F2, (total_v + 1) << 0);
DSS_REG_W(io, HDMI_ACTIVE_V_F2,
((end_v + 1) << 16) | ((start_v + 1) << 0));
} else {
DSS_REG_W(io, HDMI_V_TOTAL_F2, 0);
DSS_REG_W(io, HDMI_ACTIVE_V_F2, 0);
}
DSS_REG_W(io, HDMI_FRAME_CTRL,
((timing->interlaced << 31) & 0x80000000) |
((timing->active_low_h << 29) & 0x20000000) |
((timing->active_low_v << 28) & 0x10000000));
return 0;
} /* hdmi_tx_video_setup */
static void hdmi_tx_set_avi_infoframe(struct hdmi_tx_ctrl *hdmi_ctrl)
{
int i;
u8 *avi_iframe_data;
u8 checksum;
u8 scaninfo;
u32 sum, reg_val;
struct dss_io_data *io = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: Core io is not initialized\n", __func__);
return;
}
avi_iframe_data = hdmi_tx_avi_iframe_lut[hdmi_ctrl->video_resolution];
scaninfo = hdmi_edid_get_sink_scaninfo(
hdmi_ctrl->feature_data[HDMI_TX_FEAT_EDID],
hdmi_ctrl->video_resolution);
avi_iframe_data[DATA_BYTE_1] |= scaninfo & (BIT(1) | BIT(0));
sum = IFRAME_PACKET_OFFSET + AVI_IFRAME_TYPE +
AVI_IFRAME_VERSION + AVI_MAX_DATA_BYTES;
for (i = 0; i < AVI_MAX_DATA_BYTES; i++)
sum += avi_iframe_data[i];
sum &= 0xFF;
sum = 256 - sum;
checksum = (u8) sum;
reg_val = checksum |
LEFT_SHIFT_BYTE(avi_iframe_data[DATA_BYTE_1]) |
LEFT_SHIFT_WORD(avi_iframe_data[DATA_BYTE_2]) |
LEFT_SHIFT_24BITS(avi_iframe_data[DATA_BYTE_3]);
DSS_REG_W(io, HDMI_AVI_INFO0, reg_val);
reg_val = avi_iframe_data[DATA_BYTE_4] |
LEFT_SHIFT_BYTE(avi_iframe_data[DATA_BYTE_5]) |
LEFT_SHIFT_WORD(avi_iframe_data[DATA_BYTE_6]) |
LEFT_SHIFT_24BITS(avi_iframe_data[DATA_BYTE_7]);
DSS_REG_W(io, HDMI_AVI_INFO1, reg_val);
reg_val = avi_iframe_data[DATA_BYTE_8] |
LEFT_SHIFT_BYTE(avi_iframe_data[DATA_BYTE_9]) |
LEFT_SHIFT_WORD(avi_iframe_data[DATA_BYTE_10]) |
LEFT_SHIFT_24BITS(avi_iframe_data[DATA_BYTE_11]);
DSS_REG_W(io, HDMI_AVI_INFO2, reg_val);
reg_val = avi_iframe_data[DATA_BYTE_12] |
LEFT_SHIFT_BYTE(avi_iframe_data[DATA_BYTE_13]) |
LEFT_SHIFT_24BITS(AVI_IFRAME_VERSION);
DSS_REG_W(io, HDMI_AVI_INFO3, reg_val);
/* AVI InfFrame enable (every frame) */
DSS_REG_W(io, HDMI_INFOFRAME_CTRL0,
DSS_REG_R(io, HDMI_INFOFRAME_CTRL0) | BIT(1) | BIT(0));
} /* hdmi_tx_set_avi_infoframe */
/* todo: add 3D support */
static void hdmi_tx_set_vendor_specific_infoframe(
struct hdmi_tx_ctrl *hdmi_ctrl)
{
int i;
u8 vs_iframe[9]; /* two header + length + 6 data */
u32 sum, reg_val;
u32 hdmi_vic, hdmi_video_format;
struct dss_io_data *io = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: Core io is not initialized\n", __func__);
return;
}
/* HDMI Spec 1.4a Table 8-10 */
vs_iframe[0] = 0x81; /* type */
vs_iframe[1] = 0x1; /* version */
vs_iframe[2] = 0x8; /* length */
vs_iframe[3] = 0x0; /* PB0: checksum */
/* PB1..PB3: 24 Bit IEEE Registration Code 00_0C_03 */
vs_iframe[4] = 0x03;
vs_iframe[5] = 0x0C;
vs_iframe[6] = 0x00;
hdmi_video_format = 0x1;
switch (hdmi_ctrl->video_resolution) {
case HDMI_VFRMT_3840x2160p30_16_9:
hdmi_vic = 0x1;
break;
case HDMI_VFRMT_3840x2160p25_16_9:
hdmi_vic = 0x2;
break;
case HDMI_VFRMT_3840x2160p24_16_9:
hdmi_vic = 0x3;
break;
case HDMI_VFRMT_4096x2160p24_16_9:
hdmi_vic = 0x4;
break;
default:
hdmi_video_format = 0x0;
hdmi_vic = 0x0;
}
/* PB4: HDMI Video Format[7:5], Reserved[4:0] */
vs_iframe[7] = (hdmi_video_format << 5) & 0xE0;
/* PB5: HDMI_VIC or 3D_Structure[7:4], Reserved[3:0] */
vs_iframe[8] = hdmi_vic;
/* compute checksum */
sum = 0;
for (i = 0; i < 9; i++)
sum += vs_iframe[i];
sum &= 0xFF;
sum = 256 - sum;
vs_iframe[3] = (u8)sum;
reg_val = (hdmi_vic << 16) | (vs_iframe[3] << 8) |
(hdmi_video_format << 5) | vs_iframe[2];
DSS_REG_W(io, HDMI_VENSPEC_INFO0, reg_val);
/* vendor specific info-frame enable (every frame) */
DSS_REG_W(io, HDMI_INFOFRAME_CTRL0,
DSS_REG_R(io, HDMI_INFOFRAME_CTRL0) | BIT(13) | BIT(12));
} /* hdmi_tx_set_vendor_specific_infoframe */
static void hdmi_tx_set_spd_infoframe(struct hdmi_tx_ctrl *hdmi_ctrl)
{
u32 packet_header = 0;
u32 check_sum = 0;
u32 packet_payload = 0;
u32 packet_control = 0;
u8 *vendor_name = NULL;
u8 *product_description = NULL;
struct dss_io_data *io = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: Core io is not initialized\n", __func__);
return;
}
vendor_name = hdmi_ctrl->spd_vendor_name;
product_description = hdmi_ctrl->spd_product_description;
/* Setup Packet header and payload */
/*
* 0x83 InfoFrame Type Code
* 0x01 InfoFrame Version Number
* 0x19 Length of Source Product Description InfoFrame
*/
packet_header = 0x83 | (0x01 << 8) | (0x19 << 16);
DSS_REG_W(io, HDMI_GENERIC1_HDR, packet_header);
check_sum += IFRAME_CHECKSUM_32(packet_header);
packet_payload = (vendor_name[3] & 0x7f)
| ((vendor_name[4] & 0x7f) << 8)
| ((vendor_name[5] & 0x7f) << 16)
| ((vendor_name[6] & 0x7f) << 24);
DSS_REG_W(io, HDMI_GENERIC1_1, packet_payload);
check_sum += IFRAME_CHECKSUM_32(packet_payload);
/* Product Description (7-bit ASCII code) */
packet_payload = (vendor_name[7] & 0x7f)
| ((product_description[0] & 0x7f) << 8)
| ((product_description[1] & 0x7f) << 16)
| ((product_description[2] & 0x7f) << 24);
DSS_REG_W(io, HDMI_GENERIC1_2, packet_payload);
check_sum += IFRAME_CHECKSUM_32(packet_payload);
packet_payload = (product_description[3] & 0x7f)
| ((product_description[4] & 0x7f) << 8)
| ((product_description[5] & 0x7f) << 16)
| ((product_description[6] & 0x7f) << 24);
DSS_REG_W(io, HDMI_GENERIC1_3, packet_payload);
check_sum += IFRAME_CHECKSUM_32(packet_payload);
packet_payload = (product_description[7] & 0x7f)
| ((product_description[8] & 0x7f) << 8)
| ((product_description[9] & 0x7f) << 16)
| ((product_description[10] & 0x7f) << 24);
DSS_REG_W(io, HDMI_GENERIC1_4, packet_payload);
check_sum += IFRAME_CHECKSUM_32(packet_payload);
packet_payload = (product_description[11] & 0x7f)
| ((product_description[12] & 0x7f) << 8)
| ((product_description[13] & 0x7f) << 16)
| ((product_description[14] & 0x7f) << 24);
DSS_REG_W(io, HDMI_GENERIC1_5, packet_payload);
check_sum += IFRAME_CHECKSUM_32(packet_payload);
/*
* Source Device Information
* 00h unknown
* 01h Digital STB
* 02h DVD
* 03h D-VHS
* 04h HDD Video
* 05h DVC
* 06h DSC
* 07h Video CD
* 08h Game
* 09h PC general
*/
packet_payload = (product_description[15] & 0x7f) | 0x00 << 8;
DSS_REG_W(io, HDMI_GENERIC1_6, packet_payload);
check_sum += IFRAME_CHECKSUM_32(packet_payload);
/* Vendor Name (7bit ASCII code) */
packet_payload = ((vendor_name[0] & 0x7f) << 8)
| ((vendor_name[1] & 0x7f) << 16)
| ((vendor_name[2] & 0x7f) << 24);
check_sum += IFRAME_CHECKSUM_32(packet_payload);
packet_payload |= ((0x100 - (0xff & check_sum)) & 0xff);
DSS_REG_W(io, HDMI_GENERIC1_0, packet_payload);
/*
* GENERIC1_LINE | GENERIC1_CONT | GENERIC1_SEND
* Setup HDMI TX generic packet control
* Enable this packet to transmit every frame
* Enable HDMI TX engine to transmit Generic packet 1
*/
packet_control = DSS_REG_R_ND(io, HDMI_GEN_PKT_CTRL);
packet_control |= ((0x1 << 24) | (1 << 5) | (1 << 4));
DSS_REG_W(io, HDMI_GEN_PKT_CTRL, packet_control);
} /* hdmi_tx_set_spd_infoframe */
static void hdmi_tx_en_encryption(struct hdmi_tx_ctrl *hdmi_ctrl, u32 on)
{
u32 reg_val;
struct dss_io_data *io = NULL;
if (!hdmi_ctrl->hdcp_feature_on || !hdmi_ctrl->present_hdcp)
return;
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
mutex_lock(&hdmi_ctrl->mutex);
reg_val = DSS_REG_R_ND(io, HDMI_CTRL);
if (on)
reg_val |= BIT(2);
else
reg_val &= ~BIT(2);
DSS_REG_W(io, HDMI_CTRL, reg_val);
mutex_unlock(&hdmi_ctrl->mutex);
} /* hdmi_tx_en_encryption */
static void hdmi_tx_set_mode(struct hdmi_tx_ctrl *hdmi_ctrl, u32 power_on)
{
struct dss_io_data *io = NULL;
/* Defaults: Disable block, HDMI mode */
u32 reg_val = BIT(1);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: Core io is not initialized\n", __func__);
return;
}
mutex_lock(&hdmi_ctrl->mutex);
if (power_on) {
/* Enable the block */
reg_val |= BIT(0);
/* HDMI Encryption, if HDCP is enabled */
if (hdmi_ctrl->hdcp_feature_on &&
hdmi_ctrl->present_hdcp && !hdmi_ctrl->pdata.primary)
reg_val |= BIT(2);
/* Set transmission mode to DVI based in EDID info */
if (hdmi_edid_get_sink_mode(
hdmi_ctrl->feature_data[HDMI_TX_FEAT_EDID]) == 0)
reg_val &= ~BIT(1); /* DVI mode */
}
DSS_REG_W(io, HDMI_CTRL, reg_val);
mutex_unlock(&hdmi_ctrl->mutex);
DEV_DBG("HDMI Core: %s, HDMI_CTRL=0x%08x\n",
power_on ? "Enable" : "Disable", reg_val);
} /* hdmi_tx_set_mode */
static int hdmi_tx_pinctrl_set_state(struct hdmi_tx_ctrl *hdmi_ctrl,
enum hdmi_tx_power_module_type module, bool active)
{
struct pinctrl_state *pin_state;
int rc = -EFAULT;
struct dss_module_power *power_data = NULL;
u64 cur_pin_states;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -ENODEV;
}
if (IS_ERR_OR_NULL(hdmi_ctrl->pin_res.pinctrl))
return 0;
power_data = &hdmi_ctrl->pdata.power_data[module];
cur_pin_states = active ? (hdmi_ctrl->pdata.pin_states | BIT(module))
: (hdmi_ctrl->pdata.pin_states & ~BIT(module));
if (cur_pin_states & BIT(HDMI_TX_HPD_PM)) {
if (cur_pin_states & BIT(HDMI_TX_DDC_PM)) {
if (cur_pin_states & BIT(HDMI_TX_CEC_PM))
pin_state = hdmi_ctrl->pin_res.state_active;
else
pin_state =
hdmi_ctrl->pin_res.state_ddc_active;
} else if (cur_pin_states & BIT(HDMI_TX_CEC_PM)) {
pin_state = hdmi_ctrl->pin_res.state_cec_active;
} else {
pin_state = hdmi_ctrl->pin_res.state_hpd_active;
}
} else {
pin_state = hdmi_ctrl->pin_res.state_suspend;
}
if (!IS_ERR_OR_NULL(pin_state)) {
rc = pinctrl_select_state(hdmi_ctrl->pin_res.pinctrl,
pin_state);
if (rc)
pr_err("%s: cannot set pins\n", __func__);
else
hdmi_ctrl->pdata.pin_states = cur_pin_states;
} else {
pr_err("%s: pinstate not found\n", __func__);
}
return rc;
}
static int hdmi_tx_pinctrl_init(struct platform_device *pdev)
{
struct hdmi_tx_ctrl *hdmi_ctrl;
hdmi_ctrl = platform_get_drvdata(pdev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -ENODEV;
}
hdmi_ctrl->pin_res.pinctrl = devm_pinctrl_get(&pdev->dev);
if (IS_ERR_OR_NULL(hdmi_ctrl->pin_res.pinctrl)) {
pr_err("%s: failed to get pinctrl\n", __func__);
return PTR_ERR(hdmi_ctrl->pin_res.pinctrl);
}
hdmi_ctrl->pin_res.state_active =
pinctrl_lookup_state(hdmi_ctrl->pin_res.pinctrl, "hdmi_active");
if (IS_ERR_OR_NULL(hdmi_ctrl->pin_res.state_active))
pr_debug("%s: cannot get active pinstate\n", __func__);
hdmi_ctrl->pin_res.state_hpd_active =
pinctrl_lookup_state(hdmi_ctrl->pin_res.pinctrl,
"hdmi_hpd_active");
if (IS_ERR_OR_NULL(hdmi_ctrl->pin_res.state_hpd_active))
pr_debug("%s: cannot get hpd active pinstate\n", __func__);
hdmi_ctrl->pin_res.state_cec_active =
pinctrl_lookup_state(hdmi_ctrl->pin_res.pinctrl,
"hdmi_cec_active");
if (IS_ERR_OR_NULL(hdmi_ctrl->pin_res.state_cec_active))
pr_debug("%s: cannot get cec active pinstate\n", __func__);
hdmi_ctrl->pin_res.state_ddc_active =
pinctrl_lookup_state(hdmi_ctrl->pin_res.pinctrl,
"hdmi_ddc_active");
if (IS_ERR_OR_NULL(hdmi_ctrl->pin_res.state_ddc_active))
pr_debug("%s: cannot get ddc active pinstate\n", __func__);
hdmi_ctrl->pin_res.state_suspend =
pinctrl_lookup_state(hdmi_ctrl->pin_res.pinctrl, "hdmi_sleep");
if (IS_ERR_OR_NULL(hdmi_ctrl->pin_res.state_suspend))
pr_debug("%s: cannot get sleep pinstate\n", __func__);
return 0;
}
static int hdmi_tx_config_power(struct hdmi_tx_ctrl *hdmi_ctrl,
enum hdmi_tx_power_module_type module, int config)
{
int rc = 0;
struct dss_module_power *power_data = NULL;
if (!hdmi_ctrl || module >= HDMI_TX_MAX_PM) {
DEV_ERR("%s: Error: invalid input\n", __func__);
rc = -EINVAL;
goto exit;
}
power_data = &hdmi_ctrl->pdata.power_data[module];
if (!power_data) {
DEV_ERR("%s: Error: invalid power data\n", __func__);
rc = -EINVAL;
goto exit;
}
if (config) {
rc = msm_dss_config_vreg(&hdmi_ctrl->pdev->dev,
power_data->vreg_config, power_data->num_vreg, 1);
if (rc) {
DEV_ERR("%s: Failed to config %s vreg. Err=%d\n",
__func__, hdmi_tx_pm_name(module), rc);
goto exit;
}
rc = msm_dss_get_clk(&hdmi_ctrl->pdev->dev,
power_data->clk_config, power_data->num_clk);
if (rc) {
DEV_ERR("%s: Failed to get %s clk. Err=%d\n",
__func__, hdmi_tx_pm_name(module), rc);
msm_dss_config_vreg(&hdmi_ctrl->pdev->dev,
power_data->vreg_config, power_data->num_vreg, 0);
}
} else {
msm_dss_put_clk(power_data->clk_config, power_data->num_clk);
rc = msm_dss_config_vreg(&hdmi_ctrl->pdev->dev,
power_data->vreg_config, power_data->num_vreg, 0);
if (rc)
DEV_ERR("%s: Fail to deconfig %s vreg. Err=%d\n",
__func__, hdmi_tx_pm_name(module), rc);
}
exit:
return rc;
} /* hdmi_tx_config_power */
static int hdmi_tx_enable_power(struct hdmi_tx_ctrl *hdmi_ctrl,
enum hdmi_tx_power_module_type module, int enable)
{
int rc = 0;
struct dss_module_power *power_data = NULL;
if (!hdmi_ctrl || module >= HDMI_TX_MAX_PM) {
DEV_ERR("%s: Error: invalid input\n", __func__);
rc = -EINVAL;
goto error;
}
power_data = &hdmi_ctrl->pdata.power_data[module];
if (!power_data) {
DEV_ERR("%s: Error: invalid power data\n", __func__);
rc = -EINVAL;
goto error;
}
if (enable) {
rc = msm_dss_enable_vreg(power_data->vreg_config,
power_data->num_vreg, 1);
if (rc) {
DEV_ERR("%s: Failed to enable %s vreg. Error=%d\n",
__func__, hdmi_tx_pm_name(module), rc);
goto error;
}
rc = hdmi_tx_pinctrl_set_state(hdmi_ctrl, module, enable);
if (rc) {
DEV_ERR("%s: Failed to set %s pinctrl state\n",
__func__, hdmi_tx_pm_name(module));
goto error;
}
rc = msm_dss_enable_gpio(power_data->gpio_config,
power_data->num_gpio, 1);
if (rc) {
DEV_ERR("%s: Failed to enable %s gpio. Error=%d\n",
__func__, hdmi_tx_pm_name(module), rc);
goto disable_vreg;
}
rc = msm_dss_clk_set_rate(power_data->clk_config,
power_data->num_clk);
if (rc) {
DEV_ERR("%s: failed to set clks rate for %s. err=%d\n",
__func__, hdmi_tx_pm_name(module), rc);
goto disable_gpio;
}
rc = msm_dss_enable_clk(power_data->clk_config,
power_data->num_clk, 1);
if (rc) {
DEV_ERR("%s: Failed to enable clks for %s. Error=%d\n",
__func__, hdmi_tx_pm_name(module), rc);
goto disable_gpio;
}
} else {
msm_dss_enable_clk(power_data->clk_config,
power_data->num_clk, 0);
msm_dss_enable_gpio(power_data->gpio_config,
power_data->num_gpio, 0);
hdmi_tx_pinctrl_set_state(hdmi_ctrl, module, 0);
msm_dss_enable_vreg(power_data->vreg_config,
power_data->num_vreg, 0);
}
return rc;
disable_gpio:
msm_dss_enable_gpio(power_data->gpio_config, power_data->num_gpio, 0);
disable_vreg:
msm_dss_enable_vreg(power_data->vreg_config, power_data->num_vreg, 0);
error:
return rc;
} /* hdmi_tx_enable_power */
static void hdmi_tx_core_off(struct hdmi_tx_ctrl *hdmi_ctrl)
{
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_CEC_PM, 0);
hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_CORE_PM, 0);
} /* hdmi_tx_core_off */
static int hdmi_tx_core_on(struct hdmi_tx_ctrl *hdmi_ctrl)
{
int rc = 0;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
rc = hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_CORE_PM, 1);
if (rc) {
DEV_ERR("%s: core hdmi_msm_enable_power failed rc = %d\n",
__func__, rc);
return rc;
}
rc = hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_CEC_PM, 1);
if (rc) {
DEV_ERR("%s: cec hdmi_msm_enable_power failed rc = %d\n",
__func__, rc);
goto disable_core_power;
}
return rc;
disable_core_power:
hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_CORE_PM, 0);
return rc;
} /* hdmi_tx_core_on */
static void hdmi_tx_phy_reset(struct hdmi_tx_ctrl *hdmi_ctrl)
{
unsigned int phy_reset_polarity = 0x0;
unsigned int pll_reset_polarity = 0x0;
unsigned int val;
struct dss_io_data *io = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: core io not inititalized\n", __func__);
return;
}
val = DSS_REG_R_ND(io, HDMI_PHY_CTRL);
phy_reset_polarity = val >> 3 & 0x1;
pll_reset_polarity = val >> 1 & 0x1;
if (phy_reset_polarity == 0)
DSS_REG_W_ND(io, HDMI_PHY_CTRL, val | SW_RESET);
else
DSS_REG_W_ND(io, HDMI_PHY_CTRL, val & (~SW_RESET));
if (pll_reset_polarity == 0)
DSS_REG_W_ND(io, HDMI_PHY_CTRL, val | SW_RESET_PLL);
else
DSS_REG_W_ND(io, HDMI_PHY_CTRL, val & (~SW_RESET_PLL));
if (phy_reset_polarity == 0)
DSS_REG_W_ND(io, HDMI_PHY_CTRL, val & (~SW_RESET));
else
DSS_REG_W_ND(io, HDMI_PHY_CTRL, val | SW_RESET);
if (pll_reset_polarity == 0)
DSS_REG_W_ND(io, HDMI_PHY_CTRL, val & (~SW_RESET_PLL));
else
DSS_REG_W_ND(io, HDMI_PHY_CTRL, val | SW_RESET_PLL);
} /* hdmi_tx_phy_reset */
static void hdmi_tx_init_phy(struct hdmi_tx_ctrl *hdmi_ctrl)
{
struct dss_io_data *io = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_PHY_IO];
if (!io->base) {
DEV_DBG("%s: phy not initialized or init not available\n",
__func__);
return;
}
DSS_REG_W_ND(io, HDMI_PHY_ANA_CFG0, 0x1B);
DSS_REG_W_ND(io, HDMI_PHY_ANA_CFG1, 0xF2);
DSS_REG_W_ND(io, HDMI_PHY_BIST_CFG0, 0x0);
DSS_REG_W_ND(io, HDMI_PHY_BIST_PATN0, 0x0);
DSS_REG_W_ND(io, HDMI_PHY_BIST_PATN1, 0x0);
DSS_REG_W_ND(io, HDMI_PHY_BIST_PATN2, 0x0);
DSS_REG_W_ND(io, HDMI_PHY_BIST_PATN3, 0x0);
DSS_REG_W_ND(io, HDMI_PHY_PD_CTRL1, 0x20);
} /* hdmi_tx_init_phy */
static void hdmi_tx_powerdown_phy(struct hdmi_tx_ctrl *hdmi_ctrl)
{
struct dss_io_data *io = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_PHY_IO];
if (!io->base) {
DEV_DBG("%s: phy not initialized or pd not available\n",
__func__);
return;
}
DSS_REG_W_ND(io, HDMI_PHY_PD_CTRL0, 0x7F);
} /* hdmi_tx_powerdown_phy */
static int hdmi_tx_audio_acr_setup(struct hdmi_tx_ctrl *hdmi_ctrl,
bool enabled)
{
/* Read first before writing */
u32 acr_pck_ctrl_reg;
u32 sample_rate;
struct dss_io_data *io = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: Invalid input\n", __func__);
return -EINVAL;
}
sample_rate = hdmi_ctrl->audio_data.sample_rate;
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: core io not inititalized\n", __func__);
return -EINVAL;
}
acr_pck_ctrl_reg = DSS_REG_R(io, HDMI_ACR_PKT_CTRL);
if (enabled) {
const struct msm_hdmi_mode_timing_info *timing =
hdmi_get_supported_mode(hdmi_ctrl->video_resolution);
const struct hdmi_tx_audio_acr_arry *audio_acr =
&hdmi_tx_audio_acr_lut[0];
const int lut_size = sizeof(hdmi_tx_audio_acr_lut)
/ sizeof(*hdmi_tx_audio_acr_lut);
u32 i, n, cts, layout, multiplier, aud_pck_ctrl_2_reg;
if (timing == NULL) {
DEV_WARN("%s: video format %d not supported\n",
__func__, hdmi_ctrl->video_resolution);
return -EPERM;
}
for (i = 0; i < lut_size;
audio_acr = &hdmi_tx_audio_acr_lut[++i]) {
if (audio_acr->pclk == timing->pixel_freq)
break;
}
if (i >= lut_size) {
DEV_WARN("%s: pixel clk %d not supported\n", __func__,
timing->pixel_freq);
return -EPERM;
}
n = audio_acr->lut[sample_rate].n;
cts = audio_acr->lut[sample_rate].cts;
layout = (MSM_HDMI_AUDIO_CHANNEL_2 ==
hdmi_ctrl->audio_data.channel_num) ? 0 : 1;
if (
(AUDIO_SAMPLE_RATE_192KHZ == sample_rate) ||
(AUDIO_SAMPLE_RATE_176_4KHZ == sample_rate)) {
multiplier = 4;
n >>= 2; /* divide N by 4 and use multiplier */
} else if (
(AUDIO_SAMPLE_RATE_96KHZ == sample_rate) ||
(AUDIO_SAMPLE_RATE_88_2KHZ == sample_rate)) {
multiplier = 2;
n >>= 1; /* divide N by 2 and use multiplier */
} else {
multiplier = 1;
}
DEV_DBG("%s: n=%u, cts=%u, layout=%u\n", __func__, n, cts,
layout);
/* AUDIO_PRIORITY | SOURCE */
acr_pck_ctrl_reg |= 0x80000100;
/* Reset multiplier bits */
acr_pck_ctrl_reg &= ~(7 << 16);
/* N_MULTIPLE(multiplier) */
acr_pck_ctrl_reg |= (multiplier & 7) << 16;
if ((AUDIO_SAMPLE_RATE_48KHZ == sample_rate) ||
(AUDIO_SAMPLE_RATE_96KHZ == sample_rate) ||
(AUDIO_SAMPLE_RATE_192KHZ == sample_rate)) {
/* SELECT(3) */
acr_pck_ctrl_reg |= 3 << 4;
/* CTS_48 */
cts <<= 12;
/* CTS: need to determine how many fractional bits */
DSS_REG_W(io, HDMI_ACR_48_0, cts);
/* N */
DSS_REG_W(io, HDMI_ACR_48_1, n);
} else if (
(AUDIO_SAMPLE_RATE_44_1KHZ == sample_rate) ||
(AUDIO_SAMPLE_RATE_88_2KHZ == sample_rate) ||
(AUDIO_SAMPLE_RATE_176_4KHZ == sample_rate)) {
/* SELECT(2) */
acr_pck_ctrl_reg |= 2 << 4;
/* CTS_44 */
cts <<= 12;
/* CTS: need to determine how many fractional bits */
DSS_REG_W(io, HDMI_ACR_44_0, cts);
/* N */
DSS_REG_W(io, HDMI_ACR_44_1, n);
} else { /* default to 32k */
/* SELECT(1) */
acr_pck_ctrl_reg |= 1 << 4;
/* CTS_32 */
cts <<= 12;
/* CTS: need to determine how many fractional bits */
DSS_REG_W(io, HDMI_ACR_32_0, cts);
/* N */
DSS_REG_W(io, HDMI_ACR_32_1, n);
}
/* Payload layout depends on number of audio channels */
/* LAYOUT_SEL(layout) */
aud_pck_ctrl_2_reg = 1 | (layout << 1);
/* override | layout */
DSS_REG_W(io, HDMI_AUDIO_PKT_CTRL2, aud_pck_ctrl_2_reg);
/* SEND | CONT */
acr_pck_ctrl_reg |= 0x00000003;
} else {
/* ~(SEND | CONT) */
acr_pck_ctrl_reg &= ~0x00000003;
}
DSS_REG_W(io, HDMI_ACR_PKT_CTRL, acr_pck_ctrl_reg);
return 0;
} /* hdmi_tx_audio_acr_setup */
static int hdmi_tx_audio_iframe_setup(struct hdmi_tx_ctrl *hdmi_ctrl,
bool enabled)
{
struct dss_io_data *io = NULL;
u32 channel_count = 1; /* Def to 2 channels -> Table 17 in CEA-D */
u32 num_of_channels;
u32 channel_allocation;
u32 level_shift;
u32 down_mix;
u32 check_sum, audio_info_0_reg, audio_info_1_reg;
u32 audio_info_ctrl_reg;
u32 aud_pck_ctrl_2_reg;
u32 layout;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
num_of_channels = hdmi_ctrl->audio_data.channel_num;
channel_allocation = hdmi_ctrl->audio_data.spkr_alloc;
level_shift = hdmi_ctrl->audio_data.level_shift;
down_mix = hdmi_ctrl->audio_data.down_mix;
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: core io not inititalized\n", __func__);
return -EINVAL;
}
layout = (MSM_HDMI_AUDIO_CHANNEL_2 == num_of_channels) ? 0 : 1;
aud_pck_ctrl_2_reg = 1 | (layout << 1);
DSS_REG_W(io, HDMI_AUDIO_PKT_CTRL2, aud_pck_ctrl_2_reg);
/*
* Please see table 20 Audio InfoFrame in HDMI spec
* FL = front left
* FC = front Center
* FR = front right
* FLC = front left center
* FRC = front right center
* RL = rear left
* RC = rear center
* RR = rear right
* RLC = rear left center
* RRC = rear right center
* LFE = low frequency effect
*/
/* Read first then write because it is bundled with other controls */
audio_info_ctrl_reg = DSS_REG_R(io, HDMI_INFOFRAME_CTRL0);
if (enabled) {
switch (num_of_channels) {
case MSM_HDMI_AUDIO_CHANNEL_2:
break;
case MSM_HDMI_AUDIO_CHANNEL_3:
case MSM_HDMI_AUDIO_CHANNEL_4:
channel_count = 3;
break;
case MSM_HDMI_AUDIO_CHANNEL_5:
case MSM_HDMI_AUDIO_CHANNEL_6:
channel_count = 5;
break;
case MSM_HDMI_AUDIO_CHANNEL_7:
case MSM_HDMI_AUDIO_CHANNEL_8:
channel_count = 7;
break;
default:
DEV_ERR("%s: Unsupported num_of_channels = %u\n",
__func__, num_of_channels);
return -EINVAL;
}
/* Program the Channel-Speaker allocation */
audio_info_1_reg = 0;
/* CA(channel_allocation) */
audio_info_1_reg |= channel_allocation & 0xff;
/* Program the Level shifter */
audio_info_1_reg |= (level_shift << 11) & 0x00007800;
/* Program the Down-mix Inhibit Flag */
audio_info_1_reg |= (down_mix << 15) & 0x00008000;
DSS_REG_W(io, HDMI_AUDIO_INFO1, audio_info_1_reg);
/*
* Calculate CheckSum: Sum of all the bytes in the
* Audio Info Packet (See table 8.4 in HDMI spec)
*/
check_sum = 0;
/* HDMI_AUDIO_INFO_FRAME_PACKET_HEADER_TYPE[0x84] */
check_sum += 0x84;
/* HDMI_AUDIO_INFO_FRAME_PACKET_HEADER_VERSION[0x01] */
check_sum += 1;
/* HDMI_AUDIO_INFO_FRAME_PACKET_LENGTH[0x0A] */
check_sum += 0x0A;
check_sum += channel_count;
check_sum += channel_allocation;
/* See Table 8.5 in HDMI spec */
check_sum += (level_shift & 0xF) << 3 | (down_mix & 0x1) << 7;
check_sum &= 0xFF;
check_sum = (u8) (256 - check_sum);
audio_info_0_reg = 0;
/* CHECKSUM(check_sum) */
audio_info_0_reg |= check_sum & 0xff;
/* CC(channel_count) */
audio_info_0_reg |= (channel_count << 8) & 0x00000700;
DSS_REG_W(io, HDMI_AUDIO_INFO0, audio_info_0_reg);
/*
* Set these flags
* AUDIO_INFO_UPDATE |
* AUDIO_INFO_SOURCE |
* AUDIO_INFO_CONT |
* AUDIO_INFO_SEND
*/
audio_info_ctrl_reg |= 0x000000F0;
} else {
/*Clear these flags
* ~(AUDIO_INFO_UPDATE |
* AUDIO_INFO_SOURCE |
* AUDIO_INFO_CONT |
* AUDIO_INFO_SEND)
*/
audio_info_ctrl_reg &= ~0x000000F0;
}
DSS_REG_W(io, HDMI_INFOFRAME_CTRL0, audio_info_ctrl_reg);
dss_reg_dump(io->base, io->len,
enabled ? "HDMI-AUDIO-ON: " : "HDMI-AUDIO-OFF: ", REG_DUMP);
return 0;
} /* hdmi_tx_audio_iframe_setup */
static int hdmi_tx_audio_info_setup(struct platform_device *pdev,
u32 sample_rate, u32 num_of_channels, u32 channel_allocation,
u32 level_shift, bool down_mix)
{
int rc = 0;
struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -ENODEV;
}
if (!hdmi_tx_is_dvi_mode(hdmi_ctrl) && hdmi_ctrl->panel_power_on) {
/* Map given sample rate to Enum */
if (sample_rate == 32000)
sample_rate = AUDIO_SAMPLE_RATE_32KHZ;
else if (sample_rate == 44100)
sample_rate = AUDIO_SAMPLE_RATE_44_1KHZ;
else if (sample_rate == 48000)
sample_rate = AUDIO_SAMPLE_RATE_48KHZ;
else if (sample_rate == 88200)
sample_rate = AUDIO_SAMPLE_RATE_88_2KHZ;
else if (sample_rate == 96000)
sample_rate = AUDIO_SAMPLE_RATE_96KHZ;
else if (sample_rate == 176400)
sample_rate = AUDIO_SAMPLE_RATE_176_4KHZ;
else if (sample_rate == 192000)
sample_rate = AUDIO_SAMPLE_RATE_192KHZ;
hdmi_ctrl->audio_data.sample_rate = sample_rate;
hdmi_ctrl->audio_data.channel_num = num_of_channels;
hdmi_ctrl->audio_data.spkr_alloc = channel_allocation;
hdmi_ctrl->audio_data.level_shift = level_shift;
hdmi_ctrl->audio_data.down_mix = down_mix;
rc = hdmi_tx_audio_setup(hdmi_ctrl);
if (rc)
DEV_ERR("%s: hdmi_tx_audio_iframe_setup failed.rc=%d\n",
__func__, rc);
} else {
DEV_ERR("%s: Error. panel is not on.\n", __func__);
rc = -EPERM;
}
return rc;
} /* hdmi_tx_audio_info_setup */
static int hdmi_tx_get_audio_edid_blk(struct platform_device *pdev,
struct msm_hdmi_audio_edid_blk *blk)
{
struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -ENODEV;
}
if (!hdmi_ctrl->audio_sdev.state) {
DEV_ERR("%s: failed. HDMI is not connected/ready for audio\n",
__func__);
return -EPERM;
}
return hdmi_edid_get_audio_blk(
hdmi_ctrl->feature_data[HDMI_TX_FEAT_EDID], blk);
} /* hdmi_tx_get_audio_edid_blk */
static u8 hdmi_tx_tmds_enabled(struct platform_device *pdev)
{
struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -ENODEV;
}
/* status of tmds */
return (hdmi_ctrl->timing_gen_on == true);
}
static int hdmi_tx_set_mhl_max_pclk(struct platform_device *pdev, u32 max_val)
{
struct hdmi_tx_ctrl *hdmi_ctrl = NULL;
hdmi_ctrl = platform_get_drvdata(pdev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -ENODEV;
}
if (max_val) {
hdmi_ctrl->mhl_max_pclk = max_val;
hdmi_tx_setup_mhl_video_mode_lut(hdmi_ctrl);
} else {
DEV_ERR("%s: invalid max pclk val\n", __func__);
return -EINVAL;
}
return 0;
}
int msm_hdmi_register_mhl(struct platform_device *pdev,
struct msm_hdmi_mhl_ops *ops, void *data)
{
struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid pdev\n", __func__);
return -ENODEV;
}
if (!ops) {
DEV_ERR("%s: invalid ops\n", __func__);
return -EINVAL;
}
ops->tmds_enabled = hdmi_tx_tmds_enabled;
ops->set_mhl_max_pclk = hdmi_tx_set_mhl_max_pclk;
ops->set_upstream_hpd = hdmi_tx_set_mhl_hpd;
hdmi_ctrl->ds_registered = true;
return 0;
}
static int hdmi_tx_get_cable_status(struct platform_device *pdev, u32 vote)
{
struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev);
unsigned long flags;
u32 hpd;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -ENODEV;
}
spin_lock_irqsave(&hdmi_ctrl->hpd_state_lock, flags);
hpd = hdmi_ctrl->hpd_state;
spin_unlock_irqrestore(&hdmi_ctrl->hpd_state_lock, flags);
hdmi_ctrl->vote_hdmi_core_on = false;
if (vote && hpd)
hdmi_ctrl->vote_hdmi_core_on = true;
return hpd;
}
int msm_hdmi_register_audio_codec(struct platform_device *pdev,
struct msm_hdmi_audio_codec_ops *ops)
{
struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev);
if (!hdmi_ctrl || !ops) {
DEV_ERR("%s: invalid input\n", __func__);
return -ENODEV;
}
ops->audio_info_setup = hdmi_tx_audio_info_setup;
ops->get_audio_edid_blk = hdmi_tx_get_audio_edid_blk;
ops->hdmi_cable_status = hdmi_tx_get_cable_status;
return 0;
} /* hdmi_tx_audio_register */
EXPORT_SYMBOL(msm_hdmi_register_audio_codec);
static int hdmi_tx_audio_setup(struct hdmi_tx_ctrl *hdmi_ctrl)
{
int rc = 0;
struct dss_io_data *io = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: core io not inititalized\n", __func__);
return -EINVAL;
}
rc = hdmi_tx_audio_acr_setup(hdmi_ctrl, true);
if (rc) {
DEV_ERR("%s: hdmi_tx_audio_acr_setup failed. rc=%d\n",
__func__, rc);
return rc;
}
rc = hdmi_tx_audio_iframe_setup(hdmi_ctrl, true);
if (rc) {
DEV_ERR("%s: hdmi_tx_audio_iframe_setup failed. rc=%d\n",
__func__, rc);
return rc;
}
DEV_INFO("HDMI Audio: Enabled\n");
return 0;
} /* hdmi_tx_audio_setup */
static void hdmi_tx_audio_off(struct hdmi_tx_ctrl *hdmi_ctrl)
{
struct dss_io_data *io = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: core io not inititalized\n", __func__);
return;
}
if (hdmi_tx_audio_iframe_setup(hdmi_ctrl, false))
DEV_ERR("%s: hdmi_tx_audio_iframe_setup failed.\n", __func__);
if (hdmi_tx_audio_acr_setup(hdmi_ctrl, false))
DEV_ERR("%s: hdmi_tx_audio_acr_setup failed.\n", __func__);
hdmi_ctrl->audio_data.sample_rate = AUDIO_SAMPLE_RATE_48KHZ;
hdmi_ctrl->audio_data.channel_num = MSM_HDMI_AUDIO_CHANNEL_2;
DEV_INFO("HDMI Audio: Disabled\n");
} /* hdmi_tx_audio_off */
static int hdmi_tx_start(struct hdmi_tx_ctrl *hdmi_ctrl)
{
int rc = 0;
struct dss_io_data *io = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: core io is not initialized\n", __func__);
return -EINVAL;
}
hdmi_tx_set_mode(hdmi_ctrl, false);
hdmi_tx_init_phy(hdmi_ctrl);
DSS_REG_W(io, HDMI_USEC_REFTIMER, 0x0001001B);
hdmi_tx_set_mode(hdmi_ctrl, true);
rc = hdmi_tx_video_setup(hdmi_ctrl, hdmi_ctrl->video_resolution);
if (rc) {
DEV_ERR("%s: hdmi_tx_video_setup failed. rc=%d\n",
__func__, rc);
hdmi_tx_set_mode(hdmi_ctrl, false);
return rc;
}
if (!hdmi_tx_is_dvi_mode(hdmi_ctrl) &&
hdmi_tx_is_cea_format(hdmi_ctrl->video_resolution)) {
rc = hdmi_tx_audio_setup(hdmi_ctrl);
if (rc) {
DEV_ERR("%s: hdmi_msm_audio_setup failed. rc=%d\n",
__func__, rc);
hdmi_tx_set_mode(hdmi_ctrl, false);
return rc;
}
if (!hdmi_ctrl->hdcp_feature_on || !hdmi_ctrl->present_hdcp)
hdmi_tx_set_audio_switch_node(hdmi_ctrl, 1, false);
hdmi_tx_set_avi_infoframe(hdmi_ctrl);
hdmi_tx_set_vendor_specific_infoframe(hdmi_ctrl);
hdmi_tx_set_spd_infoframe(hdmi_ctrl);
}
/* todo: CEC */
DEV_INFO("%s: HDMI Core: Initialized\n", __func__);
return rc;
} /* hdmi_tx_start */
static void hdmi_tx_hpd_polarity_setup(struct hdmi_tx_ctrl *hdmi_ctrl,
bool polarity)
{
struct dss_io_data *io = NULL;
u32 cable_sense;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: core io is not initialized\n", __func__);
return;
}
if (polarity)
DSS_REG_W(io, HDMI_HPD_INT_CTRL, BIT(2) | BIT(1));
else
DSS_REG_W(io, HDMI_HPD_INT_CTRL, BIT(2));
cable_sense = (DSS_REG_R(io, HDMI_HPD_INT_STATUS) & BIT(1)) >> 1;
DEV_DBG("%s: listen = %s, sense = %s\n", __func__,
polarity ? "connect" : "disconnect",
cable_sense ? "connect" : "disconnect");
if (cable_sense == polarity) {
u32 reg_val = DSS_REG_R(io, HDMI_HPD_CTRL);
/* Toggle HPD circuit to trigger HPD sense */
DSS_REG_W(io, HDMI_HPD_CTRL, reg_val & ~BIT(28));
DSS_REG_W(io, HDMI_HPD_CTRL, reg_val | BIT(28));
}
} /* hdmi_tx_hpd_polarity_setup */
static void hdmi_tx_power_off_work(struct work_struct *work)
{
struct hdmi_tx_ctrl *hdmi_ctrl = NULL;
struct dss_io_data *io = NULL;
hdmi_ctrl = container_of(work, struct hdmi_tx_ctrl, power_off_work);
if (!hdmi_ctrl) {
DEV_DBG("%s: invalid input\n", __func__);
return;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: Core io is not initialized\n", __func__);
return;
}
if (hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_DDC_PM, false))
DEV_WARN("%s: Failed to disable ddc power\n", __func__);
if (!hdmi_tx_is_dvi_mode(hdmi_ctrl))
hdmi_tx_audio_off(hdmi_ctrl);
hdmi_tx_powerdown_phy(hdmi_ctrl);
hdmi_cec_deconfig(hdmi_ctrl->feature_data[HDMI_TX_FEAT_CEC]);
hdmi_tx_core_off(hdmi_ctrl);
if (hdmi_ctrl->hpd_off_pending) {
hdmi_tx_hpd_off(hdmi_ctrl);
hdmi_ctrl->hpd_off_pending = false;
}
mutex_lock(&hdmi_ctrl->mutex);
hdmi_ctrl->panel_power_on = false;
mutex_unlock(&hdmi_ctrl->mutex);
DEV_INFO("%s: HDMI Core: OFF\n", __func__);
if (hdmi_ctrl->hdmi_tx_hpd_done)
hdmi_ctrl->hdmi_tx_hpd_done(
hdmi_ctrl->downstream_data);
} /* hdmi_tx_power_off_work */
static int hdmi_tx_power_off(struct mdss_panel_data *panel_data)
{
struct hdmi_tx_ctrl *hdmi_ctrl =
hdmi_tx_get_drvdata_from_panel_data(panel_data);
if (!hdmi_ctrl || !hdmi_ctrl->panel_power_on) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
/*
* Queue work item to handle power down sequence.
* This is needed since we need to wait for the audio engine
* to shutdown first before we shutdown the HDMI core.
*/
DEV_DBG("%s: Queuing work to power off HDMI core\n", __func__);
queue_work(hdmi_ctrl->workq, &hdmi_ctrl->power_off_work);
return 0;
} /* hdmi_tx_power_off */
static int hdmi_tx_power_on(struct mdss_panel_data *panel_data)
{
int rc = 0;
struct dss_io_data *io = NULL;
struct hdmi_tx_ctrl *hdmi_ctrl =
hdmi_tx_get_drvdata_from_panel_data(panel_data);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: core io is not initialized\n", __func__);
return -EINVAL;
}
if (!hdmi_ctrl->hpd_initialized) {
DEV_ERR("%s: HDMI on is not possible w/o cable detection.\n",
__func__);
return -EPERM;
}
/* If a power down is already underway, wait for it to finish */
flush_work(&hdmi_ctrl->power_off_work);
rc = hdmi_tx_set_video_fmt(hdmi_ctrl, &panel_data->panel_info);
if (rc) {
DEV_ERR("%s: cannot set video_fmt.rc=%d\n", __func__, rc);
return rc;
}
hdmi_ctrl->hdcp_feature_on = hdcp_feature_on;
DEV_INFO("power: ON (%s)\n", msm_hdmi_mode_2string(
hdmi_ctrl->video_resolution));
rc = hdmi_tx_core_on(hdmi_ctrl);
if (rc) {
DEV_ERR("%s: hdmi_msm_core_on failed\n", __func__);
return rc;
}
mutex_lock(&hdmi_ctrl->mutex);
hdmi_ctrl->panel_power_on = true;
mutex_unlock(&hdmi_ctrl->mutex);
hdmi_cec_config(hdmi_ctrl->feature_data[HDMI_TX_FEAT_CEC]);
if (hdmi_ctrl->hpd_state) {
DEV_DBG("%s: Turning HDMI on\n", __func__);
rc = hdmi_tx_start(hdmi_ctrl);
if (rc) {
DEV_ERR("%s: hdmi_tx_start failed. rc=%d\n",
__func__, rc);
hdmi_tx_power_off(panel_data);
return rc;
}
}
dss_reg_dump(io->base, io->len, "HDMI-ON: ", REG_DUMP);
DEV_INFO("%s: HDMI=%s DVI= %s\n", __func__,
hdmi_tx_is_controller_on(hdmi_ctrl) ? "ON" : "OFF" ,
hdmi_tx_is_dvi_mode(hdmi_ctrl) ? "ON" : "OFF");
hdmi_tx_hpd_polarity_setup(hdmi_ctrl, HPD_DISCONNECT_POLARITY);
if (hdmi_ctrl->hdmi_tx_hpd_done)
hdmi_ctrl->hdmi_tx_hpd_done(hdmi_ctrl->downstream_data);
return 0;
} /* hdmi_tx_power_on */
static void hdmi_tx_hpd_off(struct hdmi_tx_ctrl *hdmi_ctrl)
{
int rc = 0;
struct dss_io_data *io = NULL;
unsigned long flags;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
if (!hdmi_ctrl->hpd_initialized) {
DEV_DBG("%s: HPD is already OFF, returning\n", __func__);
return;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: core io not inititalized\n", __func__);
return;
}
/* finish the ongoing hpd work if any */
flush_work(&hdmi_ctrl->hpd_int_work);
/* Turn off HPD interrupts */
DSS_REG_W(io, HDMI_HPD_INT_CTRL, 0);
mdss_disable_irq(&hdmi_tx_hw);
hdmi_tx_set_mode(hdmi_ctrl, false);
if (hdmi_ctrl->hpd_state) {
rc = hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_DDC_PM, 0);
if (rc)
DEV_INFO("%s: Failed to disable ddc power. Error=%d\n",
__func__, rc);
}
rc = hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_HPD_PM, 0);
if (rc)
DEV_INFO("%s: Failed to disable hpd power. Error=%d\n",
__func__, rc);
spin_lock_irqsave(&hdmi_ctrl->hpd_state_lock, flags);
hdmi_ctrl->hpd_state = false;
spin_unlock_irqrestore(&hdmi_ctrl->hpd_state_lock, flags);
hdmi_ctrl->hpd_initialized = false;
DEV_DBG("%s: HPD is now OFF\n", __func__);
} /* hdmi_tx_hpd_off */
static int hdmi_tx_hpd_on(struct hdmi_tx_ctrl *hdmi_ctrl)
{
u32 reg_val;
int rc = 0;
struct dss_io_data *io = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_ERR("%s: core io not inititalized\n", __func__);
return -EINVAL;
}
if (hdmi_ctrl->hpd_initialized) {
DEV_DBG("%s: HPD is already ON\n", __func__);
} else {
rc = hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_HPD_PM, true);
if (rc) {
DEV_ERR("%s: Failed to enable hpd power. rc=%d\n",
__func__, rc);
return rc;
}
dss_reg_dump(io->base, io->len, "HDMI-INIT: ", REG_DUMP);
hdmi_tx_set_mode(hdmi_ctrl, false);
hdmi_tx_phy_reset(hdmi_ctrl);
hdmi_tx_set_mode(hdmi_ctrl, true);
DSS_REG_W(io, HDMI_USEC_REFTIMER, 0x0001001B);
mdss_enable_irq(&hdmi_tx_hw);
hdmi_ctrl->hpd_initialized = true;
DEV_INFO("%s: HDMI HW version = 0x%x\n", __func__,
DSS_REG_R_ND(&hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO],
HDMI_VERSION));
/* set timeout to 4.1ms (max) for hardware debounce */
reg_val = DSS_REG_R(io, HDMI_HPD_CTRL) | 0x1FFF;
/* Turn on HPD HW circuit */
DSS_REG_W(io, HDMI_HPD_CTRL, reg_val | BIT(28));
hdmi_tx_hpd_polarity_setup(hdmi_ctrl, HPD_CONNECT_POLARITY);
DEV_DBG("%s: HPD is now ON\n", __func__);
}
return rc;
} /* hdmi_tx_hpd_on */
static int hdmi_tx_sysfs_enable_hpd(struct hdmi_tx_ctrl *hdmi_ctrl, int on)
{
int rc = 0;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
DEV_INFO("%s: %d\n", __func__, on);
if (on) {
rc = hdmi_tx_hpd_on(hdmi_ctrl);
} else {
/* If power down is already underway, wait for it to finish */
flush_work(&hdmi_ctrl->power_off_work);
if (!hdmi_ctrl->panel_power_on)
hdmi_tx_hpd_off(hdmi_ctrl);
else
hdmi_ctrl->hpd_off_pending = true;
}
return rc;
} /* hdmi_tx_sysfs_enable_hpd */
static int hdmi_tx_set_mhl_hpd(struct platform_device *pdev, uint8_t on)
{
int rc = 0;
struct hdmi_tx_ctrl *hdmi_ctrl = NULL;
hdmi_ctrl = platform_get_drvdata(pdev);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
/* mhl status should override */
hdmi_ctrl->mhl_hpd_on = on;
if (!on && hdmi_ctrl->hpd_feature_on) {
rc = hdmi_tx_sysfs_enable_hpd(hdmi_ctrl, false);
} else if (on && !hdmi_ctrl->hpd_feature_on) {
rc = hdmi_tx_sysfs_enable_hpd(hdmi_ctrl, true);
} else {
DEV_DBG("%s: hpd is already '%s'. return\n", __func__,
hdmi_ctrl->hpd_feature_on ? "enabled" : "disabled");
return rc;
}
if (!rc) {
hdmi_ctrl->hpd_feature_on =
(~hdmi_ctrl->hpd_feature_on) & BIT(0);
DEV_DBG("%s: '%d'\n", __func__, hdmi_ctrl->hpd_feature_on);
} else {
DEV_ERR("%s: failed to '%s' hpd. rc = %d\n", __func__,
on ? "enable" : "disable", rc);
}
return rc;
}
static irqreturn_t hdmi_tx_isr(int irq, void *data)
{
struct dss_io_data *io = NULL;
struct hdmi_tx_ctrl *hdmi_ctrl = (struct hdmi_tx_ctrl *)data;
unsigned long flags;
if (!hdmi_ctrl) {
DEV_WARN("%s: invalid input data, ISR ignored\n", __func__);
return IRQ_HANDLED;
}
io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO];
if (!io->base) {
DEV_WARN("%s: core io not initialized, ISR ignored\n",
__func__);
return IRQ_HANDLED;
}
if (DSS_REG_R(io, HDMI_HPD_INT_STATUS) & BIT(0)) {
spin_lock_irqsave(&hdmi_ctrl->hpd_state_lock, flags);
hdmi_ctrl->hpd_state =
(DSS_REG_R(io, HDMI_HPD_INT_STATUS) & BIT(1)) >> 1;
spin_unlock_irqrestore(&hdmi_ctrl->hpd_state_lock, flags);
/*
* Ack the current hpd interrupt and stop listening to
* new hpd interrupt.
*/
DSS_REG_W(io, HDMI_HPD_INT_CTRL, BIT(0));
queue_work(hdmi_ctrl->workq, &hdmi_ctrl->hpd_int_work);
}
if (hdmi_ddc_isr(&hdmi_ctrl->ddc_ctrl))
DEV_ERR("%s: hdmi_ddc_isr failed\n", __func__);
if (hdmi_ctrl->feature_data[HDMI_TX_FEAT_CEC])
if (hdmi_cec_isr(hdmi_ctrl->feature_data[HDMI_TX_FEAT_CEC]))
DEV_ERR("%s: hdmi_cec_isr failed\n", __func__);
if (hdmi_ctrl->feature_data[HDMI_TX_FEAT_HDCP])
if (hdmi_hdcp_isr(hdmi_ctrl->feature_data[HDMI_TX_FEAT_HDCP]))
DEV_ERR("%s: hdmi_hdcp_isr failed\n", __func__);
return IRQ_HANDLED;
} /* hdmi_tx_isr */
static void hdmi_tx_dev_deinit(struct hdmi_tx_ctrl *hdmi_ctrl)
{
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
if (hdmi_ctrl->feature_data[HDMI_TX_FEAT_CEC]) {
hdmi_cec_deinit(hdmi_ctrl->feature_data[HDMI_TX_FEAT_CEC]);
hdmi_ctrl->feature_data[HDMI_TX_FEAT_CEC] = NULL;
}
if (hdmi_ctrl->feature_data[HDMI_TX_FEAT_HDCP]) {
hdmi_hdcp_deinit(hdmi_ctrl->feature_data[HDMI_TX_FEAT_HDCP]);
hdmi_ctrl->feature_data[HDMI_TX_FEAT_HDCP] = NULL;
}
if (hdmi_ctrl->feature_data[HDMI_TX_FEAT_EDID]) {
hdmi_edid_deinit(hdmi_ctrl->feature_data[HDMI_TX_FEAT_EDID]);
hdmi_ctrl->feature_data[HDMI_TX_FEAT_EDID] = NULL;
}
switch_dev_unregister(&hdmi_ctrl->audio_sdev);
switch_dev_unregister(&hdmi_ctrl->sdev);
if (hdmi_ctrl->workq)
destroy_workqueue(hdmi_ctrl->workq);
mutex_destroy(&hdmi_ctrl->lut_lock);
mutex_destroy(&hdmi_ctrl->cable_notify_mutex);
mutex_destroy(&hdmi_ctrl->mutex);
hdmi_tx_hw.ptr = NULL;
} /* hdmi_tx_dev_deinit */
static int hdmi_tx_dev_init(struct hdmi_tx_ctrl *hdmi_ctrl)
{
int rc = 0;
struct hdmi_tx_platform_data *pdata = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
pdata = &hdmi_ctrl->pdata;
rc = hdmi_tx_check_capability(hdmi_ctrl);
if (rc) {
DEV_ERR("%s: no HDMI device\n", __func__);
goto fail_no_hdmi;
}
/* irq enable/disable will be handled in hpd on/off */
hdmi_tx_hw.ptr = (void *)hdmi_ctrl;
hdmi_setup_video_mode_lut();
mutex_init(&hdmi_ctrl->mutex);
mutex_init(&hdmi_ctrl->lut_lock);
mutex_init(&hdmi_ctrl->cable_notify_mutex);
INIT_LIST_HEAD(&hdmi_ctrl->cable_notify_handlers);
hdmi_ctrl->workq = create_workqueue("hdmi_tx_workq");
if (!hdmi_ctrl->workq) {
DEV_ERR("%s: hdmi_tx_workq creation failed.\n", __func__);
rc = -EPERM;
goto fail_create_workq;
}
hdmi_ctrl->ddc_ctrl.io = &pdata->io[HDMI_TX_CORE_IO];
init_completion(&hdmi_ctrl->ddc_ctrl.ddc_sw_done);
hdmi_ctrl->panel_power_on = false;
hdmi_ctrl->panel_suspend = false;
hdmi_ctrl->hpd_state = false;
hdmi_ctrl->hpd_initialized = false;
hdmi_ctrl->hpd_off_pending = false;
init_completion(&hdmi_ctrl->hpd_done);
INIT_WORK(&hdmi_ctrl->hpd_int_work, hdmi_tx_hpd_int_work);
INIT_WORK(&hdmi_ctrl->cable_notify_work, hdmi_tx_cable_notify_work);
INIT_WORK(&hdmi_ctrl->power_off_work, hdmi_tx_power_off_work);
spin_lock_init(&hdmi_ctrl->hpd_state_lock);
hdmi_ctrl->audio_data.sample_rate = AUDIO_SAMPLE_RATE_48KHZ;
hdmi_ctrl->audio_data.channel_num = MSM_HDMI_AUDIO_CHANNEL_2;
hdmi_ctrl->sdev.name = "hdmi";
if (switch_dev_register(&hdmi_ctrl->sdev) < 0) {
DEV_ERR("%s: Hdmi switch registration failed\n", __func__);
rc = -ENODEV;
goto fail_create_workq;
}
hdmi_ctrl->audio_sdev.name = "hdmi_audio";
if (switch_dev_register(&hdmi_ctrl->audio_sdev) < 0) {
DEV_ERR("%s: hdmi_audio switch registration failed\n",
__func__);
rc = -ENODEV;
goto fail_audio_switch_dev;
}
return 0;
fail_audio_switch_dev:
switch_dev_unregister(&hdmi_ctrl->sdev);
fail_create_workq:
if (hdmi_ctrl->workq)
destroy_workqueue(hdmi_ctrl->workq);
mutex_destroy(&hdmi_ctrl->lut_lock);
mutex_destroy(&hdmi_ctrl->mutex);
fail_no_hdmi:
return rc;
} /* hdmi_tx_dev_init */
static int hdmi_tx_panel_event_handler(struct mdss_panel_data *panel_data,
int event, void *arg)
{
int rc = 0, new_vic = -1;
struct hdmi_tx_ctrl *hdmi_ctrl =
hdmi_tx_get_drvdata_from_panel_data(panel_data);
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
DEV_DBG("%s: event = %d suspend=%d, hpd_feature=%d\n", __func__,
event, hdmi_ctrl->panel_suspend, hdmi_ctrl->hpd_feature_on);
switch (event) {
case MDSS_EVENT_FB_REGISTERED:
rc = hdmi_tx_sysfs_create(hdmi_ctrl, arg);
if (rc) {
DEV_ERR("%s: hdmi_tx_sysfs_create failed.rc=%d\n",
__func__, rc);
return rc;
}
rc = hdmi_tx_init_features(hdmi_ctrl);
if (rc) {
DEV_ERR("%s: init_features failed.rc=%d\n",
__func__, rc);
hdmi_tx_sysfs_remove(hdmi_ctrl);
return rc;
}
if (hdmi_ctrl->pdata.primary) {
INIT_COMPLETION(hdmi_ctrl->hpd_done);
rc = hdmi_tx_sysfs_enable_hpd(hdmi_ctrl, true);
if (rc) {
DEV_ERR("%s: hpd_enable failed. rc=%d\n",
__func__, rc);
hdmi_tx_sysfs_remove(hdmi_ctrl);
return rc;
} else {
hdmi_ctrl->hpd_feature_on = true;
}
}
break;
case MDSS_EVENT_CHECK_PARAMS:
new_vic = hdmi_tx_get_vic_from_panel_info(hdmi_ctrl,
(struct mdss_panel_info *)arg);
if ((new_vic < 0) || (new_vic > HDMI_VFRMT_MAX)) {
DEV_ERR("%s: invalid or not supported vic\n", __func__);
return -EPERM;
}
/*
* return value of 1 lets mdss know that panel
* needs a reconfig due to new resolution and
* it will issue close and open subsequently.
*/
if (new_vic != hdmi_ctrl->video_resolution)
rc = 1;
else
DEV_DBG("%s: no res change.\n", __func__);
break;
case MDSS_EVENT_RESUME:
/* If a suspend is already underway, wait for it to finish */
if (hdmi_ctrl->panel_suspend && hdmi_ctrl->panel_power_on)
flush_work(&hdmi_ctrl->power_off_work);
if (hdmi_ctrl->hpd_feature_on) {
INIT_COMPLETION(hdmi_ctrl->hpd_done);
rc = hdmi_tx_hpd_on(hdmi_ctrl);
if (rc)
DEV_ERR("%s: hdmi_tx_hpd_on failed. rc=%d\n",
__func__, rc);
}
break;
case MDSS_EVENT_RESET:
if (hdmi_ctrl->panel_suspend) {
u32 timeout;
hdmi_ctrl->panel_suspend = false;
timeout = wait_for_completion_timeout(
&hdmi_ctrl->hpd_done, HZ/10);
if (!timeout && !hdmi_ctrl->hpd_state) {
DEV_INFO("%s: cable removed during suspend\n",
__func__);
hdmi_tx_send_cable_notification(hdmi_ctrl, 0);
rc = -EPERM;
} else {
DEV_DBG("%s: cable present after resume\n",
__func__);
}
}
break;
case MDSS_EVENT_UNBLANK:
rc = hdmi_tx_power_on(panel_data);
if (rc)
DEV_ERR("%s: hdmi_tx_power_on failed. rc=%d\n",
__func__, rc);
break;
case MDSS_EVENT_PANEL_ON:
if (hdmi_ctrl->hdcp_feature_on && hdmi_ctrl->present_hdcp) {
/* Set AV Mute before starting authentication */
if (hdmi_ctrl->pdata.primary)
hdmi_tx_en_encryption(hdmi_ctrl, false);
else
rc = hdmi_tx_config_avmute(hdmi_ctrl, 1);
DEV_DBG("%s: Starting HDCP authentication\n", __func__);
rc = hdmi_hdcp_authenticate(
hdmi_ctrl->feature_data[HDMI_TX_FEAT_HDCP]);
if (rc)
DEV_ERR("%s: hdcp auth failed. rc=%d\n",
__func__, rc);
}
hdmi_ctrl->timing_gen_on = true;
break;
case MDSS_EVENT_SUSPEND:
if (!hdmi_ctrl->panel_power_on) {
if (hdmi_ctrl->hpd_feature_on)
hdmi_tx_hpd_off(hdmi_ctrl);
hdmi_ctrl->panel_suspend = false;
} else {
hdmi_ctrl->hpd_off_pending = true;
hdmi_ctrl->panel_suspend = true;
}
break;
case MDSS_EVENT_BLANK:
if (hdmi_ctrl->hdcp_feature_on && hdmi_ctrl->present_hdcp) {
DEV_DBG("%s: Turning off HDCP\n", __func__);
hdmi_hdcp_off(
hdmi_ctrl->feature_data[HDMI_TX_FEAT_HDCP]);
}
break;
case MDSS_EVENT_PANEL_OFF:
if (hdmi_ctrl->panel_power_on) {
rc = hdmi_tx_power_off(panel_data);
if (rc)
DEV_ERR("%s: hdmi_tx_power_off failed.rc=%d\n",
__func__, rc);
} else {
DEV_DBG("%s: hdmi is already powered off\n", __func__);
}
hdmi_ctrl->timing_gen_on = false;
break;
case MDSS_EVENT_CLOSE:
if (hdmi_ctrl->hpd_feature_on)
hdmi_tx_hpd_polarity_setup(hdmi_ctrl,
HPD_CONNECT_POLARITY);
break;
}
return rc;
} /* hdmi_tx_panel_event_handler */
static int hdmi_tx_register_panel(struct hdmi_tx_ctrl *hdmi_ctrl)
{
int rc = 0;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
hdmi_ctrl->panel_data.event_handler = hdmi_tx_panel_event_handler;
/* Default 1080p resolution for hdmi primary display */
if (hdmi_ctrl->pdata.primary)
hdmi_ctrl->video_resolution = DEFAULT_HDMI_PRIMARY_RESOLUTION;
else
hdmi_ctrl->video_resolution = DEFAULT_VIDEO_RESOLUTION;
rc = hdmi_tx_init_panel_info(hdmi_ctrl->video_resolution,
&hdmi_ctrl->panel_data.panel_info);
if (rc) {
DEV_ERR("%s: hdmi_init_panel_info failed\n", __func__);
return rc;
}
rc = mdss_register_panel(hdmi_ctrl->pdev, &hdmi_ctrl->panel_data);
if (rc) {
DEV_ERR("%s: FAILED: to register HDMI panel\n", __func__);
return rc;
}
rc = mdss_register_irq(&hdmi_tx_hw);
if (rc)
DEV_ERR("%s: mdss_register_irq failed.\n", __func__);
return rc;
} /* hdmi_tx_register_panel */
static void hdmi_tx_deinit_resource(struct hdmi_tx_ctrl *hdmi_ctrl)
{
int i;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
/* VREG & CLK */
for (i = HDMI_TX_MAX_PM - 1; i >= 0; i--) {
if (hdmi_tx_config_power(hdmi_ctrl, i, 0))
DEV_ERR("%s: '%s' power deconfig fail\n",
__func__, hdmi_tx_pm_name(i));
}
/* IO */
for (i = HDMI_TX_MAX_IO - 1; i >= 0; i--) {
if (hdmi_ctrl->pdata.io[i].base)
msm_dss_iounmap(&hdmi_ctrl->pdata.io[i]);
}
} /* hdmi_tx_deinit_resource */
static int hdmi_tx_init_resource(struct hdmi_tx_ctrl *hdmi_ctrl)
{
int i, rc = 0;
struct hdmi_tx_platform_data *pdata = NULL;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
pdata = &hdmi_ctrl->pdata;
hdmi_tx_pinctrl_init(hdmi_ctrl->pdev);
/* IO */
for (i = 0; i < HDMI_TX_MAX_IO; i++) {
rc = msm_dss_ioremap_byname(hdmi_ctrl->pdev, &pdata->io[i],
hdmi_tx_io_name(i));
if (rc) {
DEV_DBG("%s: '%s' remap failed or not available\n",
__func__, hdmi_tx_io_name(i));
}
DEV_INFO("%s: '%s': start = 0x%p, len=0x%x\n", __func__,
hdmi_tx_io_name(i), pdata->io[i].base,
pdata->io[i].len);
}
/* VREG & CLK */
for (i = 0; i < HDMI_TX_MAX_PM; i++) {
rc = hdmi_tx_config_power(hdmi_ctrl, i, 1);
if (rc) {
DEV_ERR("%s: '%s' power config failed.rc=%d\n",
__func__, hdmi_tx_pm_name(i), rc);
goto error;
}
}
return rc;
error:
hdmi_tx_deinit_resource(hdmi_ctrl);
return rc;
} /* hdmi_tx_init_resource */
static void hdmi_tx_put_dt_clk_data(struct device *dev,
struct dss_module_power *module_power)
{
if (!module_power) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
if (module_power->clk_config) {
devm_kfree(dev, module_power->clk_config);
module_power->clk_config = NULL;
}
module_power->num_clk = 0;
} /* hdmi_tx_put_dt_clk_data */
/* todo: once clk are moved to device tree then change this implementation */
static int hdmi_tx_get_dt_clk_data(struct device *dev,
struct dss_module_power *mp, u32 module_type)
{
int rc = 0;
if (!dev || !mp) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
DEV_DBG("%s: module: '%s'\n", __func__, hdmi_tx_pm_name(module_type));
switch (module_type) {
case HDMI_TX_HPD_PM:
mp->num_clk = 4;
mp->clk_config = devm_kzalloc(dev, sizeof(struct dss_clk) *
mp->num_clk, GFP_KERNEL);
if (!mp->clk_config) {
DEV_ERR("%s: can't alloc '%s' clk mem\n", __func__,
hdmi_tx_pm_name(module_type));
goto error;
}
snprintf(mp->clk_config[0].clk_name, 32, "%s", "iface_clk");
mp->clk_config[0].type = DSS_CLK_AHB;
mp->clk_config[0].rate = 0;
snprintf(mp->clk_config[1].clk_name, 32, "%s", "core_clk");
mp->clk_config[1].type = DSS_CLK_OTHER;
mp->clk_config[1].rate = 19200000;
/*
* This clock is required to clock MDSS interrupt registers
* when HDMI is the only block turned on within MDSS. Since
* rate for this clock is controlled by MDP driver, treat this
* similar to AHB clock and do not set rate for it.
*/
snprintf(mp->clk_config[2].clk_name, 32, "%s", "mdp_core_clk");
mp->clk_config[2].type = DSS_CLK_AHB;
mp->clk_config[2].rate = 0;
snprintf(mp->clk_config[3].clk_name, 32, "%s", "alt_iface_clk");
mp->clk_config[3].type = DSS_CLK_AHB;
mp->clk_config[3].rate = 0;
break;
case HDMI_TX_CORE_PM:
mp->num_clk = 1;
mp->clk_config = devm_kzalloc(dev, sizeof(struct dss_clk) *
mp->num_clk, GFP_KERNEL);
if (!mp->clk_config) {
DEV_ERR("%s: can't alloc '%s' clk mem\n", __func__,
hdmi_tx_pm_name(module_type));
goto error;
}
snprintf(mp->clk_config[0].clk_name, 32, "%s", "extp_clk");
mp->clk_config[0].type = DSS_CLK_PCLK;
/* This rate will be overwritten when core is powered on */
mp->clk_config[0].rate = 148500000;
break;
case HDMI_TX_DDC_PM:
case HDMI_TX_CEC_PM:
mp->num_clk = 0;
DEV_DBG("%s: no clk\n", __func__);
break;
default:
DEV_ERR("%s: invalid module type=%d\n", __func__,
module_type);
return -EINVAL;
}
return rc;
error:
if (mp->clk_config) {
devm_kfree(dev, mp->clk_config);
mp->clk_config = NULL;
}
mp->num_clk = 0;
return rc;
} /* hdmi_tx_get_dt_clk_data */
static void hdmi_tx_put_dt_vreg_data(struct device *dev,
struct dss_module_power *module_power)
{
if (!module_power) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
if (module_power->vreg_config) {
devm_kfree(dev, module_power->vreg_config);
module_power->vreg_config = NULL;
}
module_power->num_vreg = 0;
} /* hdmi_tx_put_dt_vreg_data */
static int hdmi_tx_get_dt_vreg_data(struct device *dev,
struct dss_module_power *mp, u32 module_type)
{
int i, j, rc = 0;
int dt_vreg_total = 0, mod_vreg_total = 0;
u32 ndx_mask = 0;
u32 *val_array = NULL;
const char *mod_name = NULL;
struct device_node *of_node = NULL;
if (!dev || !mp) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
switch (module_type) {
case HDMI_TX_HPD_PM:
mod_name = "hpd";
break;
case HDMI_TX_DDC_PM:
mod_name = "ddc";
break;
case HDMI_TX_CORE_PM:
mod_name = "core";
break;
case HDMI_TX_CEC_PM:
mod_name = "cec";
break;
default:
DEV_ERR("%s: invalid module type=%d\n", __func__,
module_type);
return -EINVAL;
}
DEV_DBG("%s: module: '%s'\n", __func__, hdmi_tx_pm_name(module_type));
of_node = dev->of_node;
dt_vreg_total = of_property_count_strings(of_node, "qcom,supply-names");
if (dt_vreg_total < 0) {
DEV_ERR("%s: vreg not found. rc=%d\n", __func__,
dt_vreg_total);
rc = dt_vreg_total;
goto error;
}
/* count how many vreg for particular hdmi module */
for (i = 0; i < dt_vreg_total; i++) {
const char *st = NULL;
rc = of_property_read_string_index(of_node,
"qcom,supply-names", i, &st);
if (rc) {
DEV_ERR("%s: error reading name. i=%d, rc=%d\n",
__func__, i, rc);
goto error;
}
if (strnstr(st, mod_name, strlen(st))) {
ndx_mask |= BIT(i);
mod_vreg_total++;
}
}
if (mod_vreg_total > 0) {
mp->num_vreg = mod_vreg_total;
mp->vreg_config = devm_kzalloc(dev, sizeof(struct dss_vreg) *
mod_vreg_total, GFP_KERNEL);
if (!mp->vreg_config) {
DEV_ERR("%s: can't alloc '%s' vreg mem\n", __func__,
hdmi_tx_pm_name(module_type));
goto error;
}
} else {
DEV_DBG("%s: no vreg\n", __func__);
return 0;
}
val_array = devm_kzalloc(dev, sizeof(u32) * dt_vreg_total, GFP_KERNEL);
if (!val_array) {
DEV_ERR("%s: can't allocate vreg scratch mem\n", __func__);
rc = -ENOMEM;
goto error;
}
for (i = 0, j = 0; (i < dt_vreg_total) && (j < mod_vreg_total); i++) {
const char *st = NULL;
if (!(ndx_mask & BIT(0))) {
ndx_mask >>= 1;
continue;
}
/* vreg-name */
rc = of_property_read_string_index(of_node,
"qcom,supply-names", i, &st);
if (rc) {
DEV_ERR("%s: error reading name. i=%d, rc=%d\n",
__func__, i, rc);
goto error;
}
snprintf(mp->vreg_config[j].vreg_name, 32, "%s", st);
/* vreg-min-voltage */
memset(val_array, 0, sizeof(u32) * dt_vreg_total);
rc = of_property_read_u32_array(of_node,
"qcom,min-voltage-level", val_array,
dt_vreg_total);
if (rc) {
DEV_ERR("%s: error read '%s' min volt. rc=%d\n",
__func__, hdmi_tx_pm_name(module_type), rc);
goto error;
}
mp->vreg_config[j].min_voltage = val_array[i];
/* vreg-max-voltage */
memset(val_array, 0, sizeof(u32) * dt_vreg_total);
rc = of_property_read_u32_array(of_node,
"qcom,max-voltage-level", val_array,
dt_vreg_total);
if (rc) {
DEV_ERR("%s: error read '%s' max volt. rc=%d\n",
__func__, hdmi_tx_pm_name(module_type), rc);
goto error;
}
mp->vreg_config[j].max_voltage = val_array[i];
/* vreg-op-mode */
memset(val_array, 0, sizeof(u32) * dt_vreg_total);
rc = of_property_read_u32_array(of_node,
"qcom,enable-load", val_array,
dt_vreg_total);
if (rc) {
DEV_ERR("%s: error read '%s' enable load. rc=%d\n",
__func__, hdmi_tx_pm_name(module_type), rc);
goto error;
}
mp->vreg_config[j].load[DSS_REG_MODE_ENABLE] = val_array[i];
memset(val_array, 0, sizeof(u32) * dt_vreg_total);
rc = of_property_read_u32_array(of_node,
"qcom,disable-load", val_array,
dt_vreg_total);
if (rc) {
DEV_ERR("%s: error read '%s' disable load. rc=%d\n",
__func__, hdmi_tx_pm_name(module_type), rc);
goto error;
}
mp->vreg_config[j].load[DSS_REG_MODE_DISABLE] = val_array[i];
DEV_DBG("%s: %s min=%d, max=%d, enable=%d disable=%d\n",
__func__,
mp->vreg_config[j].vreg_name,
mp->vreg_config[j].min_voltage,
mp->vreg_config[j].max_voltage,
mp->vreg_config[j].load[DSS_REG_MODE_ENABLE],
mp->vreg_config[j].load[DSS_REG_MODE_DISABLE]);
ndx_mask >>= 1;
j++;
}
devm_kfree(dev, val_array);
return rc;
error:
if (mp->vreg_config) {
devm_kfree(dev, mp->vreg_config);
mp->vreg_config = NULL;
}
mp->num_vreg = 0;
if (val_array)
devm_kfree(dev, val_array);
return rc;
} /* hdmi_tx_get_dt_vreg_data */
static void hdmi_tx_put_dt_gpio_data(struct device *dev,
struct dss_module_power *module_power)
{
if (!module_power) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
if (module_power->gpio_config) {
devm_kfree(dev, module_power->gpio_config);
module_power->gpio_config = NULL;
}
module_power->num_gpio = 0;
} /* hdmi_tx_put_dt_gpio_data */
static int hdmi_tx_get_dt_gpio_data(struct device *dev,
struct dss_module_power *mp, u32 module_type)
{
int i, j;
int mp_gpio_cnt = 0, gpio_list_size = 0;
struct dss_gpio *gpio_list = NULL;
struct device_node *of_node = NULL;
DEV_DBG("%s: module: '%s'\n", __func__, hdmi_tx_pm_name(module_type));
if (!dev || !mp) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
of_node = dev->of_node;
switch (module_type) {
case HDMI_TX_HPD_PM:
gpio_list_size = ARRAY_SIZE(hpd_gpio_config);
gpio_list = hpd_gpio_config;
break;
case HDMI_TX_DDC_PM:
gpio_list_size = ARRAY_SIZE(ddc_gpio_config);
gpio_list = ddc_gpio_config;
break;
case HDMI_TX_CORE_PM:
gpio_list_size = ARRAY_SIZE(core_gpio_config);
gpio_list = core_gpio_config;
break;
case HDMI_TX_CEC_PM:
gpio_list_size = ARRAY_SIZE(cec_gpio_config);
gpio_list = cec_gpio_config;
break;
default:
DEV_ERR("%s: invalid module type=%d\n", __func__,
module_type);
return -EINVAL;
}
for (i = 0; i < gpio_list_size; i++)
if (of_find_property(of_node, gpio_list[i].gpio_name, NULL))
mp_gpio_cnt++;
if (!mp_gpio_cnt) {
DEV_DBG("%s: no gpio\n", __func__);
return 0;
}
DEV_DBG("%s: mp_gpio_cnt = %d\n", __func__, mp_gpio_cnt);
mp->num_gpio = mp_gpio_cnt;
mp->gpio_config = devm_kzalloc(dev, sizeof(struct dss_gpio) *
mp_gpio_cnt, GFP_KERNEL);
if (!mp->gpio_config) {
DEV_ERR("%s: can't alloc '%s' gpio mem\n", __func__,
hdmi_tx_pm_name(module_type));
mp->num_gpio = 0;
return -ENOMEM;
}
for (i = 0, j = 0; i < gpio_list_size; i++) {
int gpio = of_get_named_gpio(of_node,
gpio_list[i].gpio_name, 0);
if (gpio < 0) {
DEV_DBG("%s: no gpio named %s\n", __func__,
gpio_list[i].gpio_name);
continue;
}
memcpy(&mp->gpio_config[j], &gpio_list[i],
sizeof(struct dss_gpio));
mp->gpio_config[j].gpio = (unsigned)gpio;
DEV_DBG("%s: gpio num=%d, name=%s, value=%d\n",
__func__, mp->gpio_config[j].gpio,
mp->gpio_config[j].gpio_name,
mp->gpio_config[j].value);
j++;
}
return 0;
} /* hdmi_tx_get_dt_gpio_data */
static void hdmi_tx_put_dt_data(struct device *dev,
struct hdmi_tx_platform_data *pdata)
{
int i;
if (!dev || !pdata) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
for (i = HDMI_TX_MAX_PM - 1; i >= 0; i--)
hdmi_tx_put_dt_clk_data(dev, &pdata->power_data[i]);
for (i = HDMI_TX_MAX_PM - 1; i >= 0; i--)
hdmi_tx_put_dt_vreg_data(dev, &pdata->power_data[i]);
for (i = HDMI_TX_MAX_PM - 1; i >= 0; i--)
hdmi_tx_put_dt_gpio_data(dev, &pdata->power_data[i]);
} /* hdmi_tx_put_dt_data */
static int hdmi_tx_get_dt_data(struct platform_device *pdev,
struct hdmi_tx_platform_data *pdata)
{
int i, rc = 0;
struct device_node *of_node = NULL;
if (!pdev || !pdata) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
of_node = pdev->dev.of_node;
rc = of_property_read_u32(of_node, "cell-index", &pdev->id);
if (rc) {
DEV_ERR("%s: dev id from dt not found.rc=%d\n",
__func__, rc);
goto error;
}
DEV_DBG("%s: id=%d\n", __func__, pdev->id);
/* GPIO */
for (i = 0; i < HDMI_TX_MAX_PM; i++) {
rc = hdmi_tx_get_dt_gpio_data(&pdev->dev,
&pdata->power_data[i], i);
if (rc) {
DEV_ERR("%s: '%s' get_dt_gpio_data failed.rc=%d\n",
__func__, hdmi_tx_pm_name(i), rc);
goto error;
}
}
/* VREG */
for (i = 0; i < HDMI_TX_MAX_PM; i++) {
rc = hdmi_tx_get_dt_vreg_data(&pdev->dev,
&pdata->power_data[i], i);
if (rc) {
DEV_ERR("%s: '%s' get_dt_vreg_data failed.rc=%d\n",
__func__, hdmi_tx_pm_name(i), rc);
goto error;
}
}
/* CLK */
for (i = 0; i < HDMI_TX_MAX_PM; i++) {
rc = hdmi_tx_get_dt_clk_data(&pdev->dev,
&pdata->power_data[i], i);
if (rc) {
DEV_ERR("%s: '%s' get_dt_clk_data failed.rc=%d\n",
__func__, hdmi_tx_pm_name(i), rc);
goto error;
}
}
if (of_find_property(pdev->dev.of_node, "qcom,primary_panel", NULL)) {
u32 tmp;
of_property_read_u32(pdev->dev.of_node, "qcom,primary_panel",
&tmp);
pdata->primary = tmp ? true : false;
}
pdata->cond_power_on = of_property_read_bool(pdev->dev.of_node,
"qcom,conditional-power-on");
return rc;
error:
hdmi_tx_put_dt_data(&pdev->dev, pdata);
return rc;
} /* hdmi_tx_get_dt_data */
static int hdmi_tx_probe(struct platform_device *pdev)
{
int rc = 0;
struct device_node *of_node = pdev->dev.of_node;
struct hdmi_tx_ctrl *hdmi_ctrl = NULL;
struct mdss_panel_cfg *pan_cfg = NULL;
if (!of_node) {
DEV_ERR("%s: FAILED: of_node not found\n", __func__);
rc = -ENODEV;
return rc;
}
hdmi_ctrl = devm_kzalloc(&pdev->dev, sizeof(*hdmi_ctrl), GFP_KERNEL);
if (!hdmi_ctrl) {
DEV_ERR("%s: FAILED: cannot alloc hdmi tx ctrl\n", __func__);
rc = -ENOMEM;
goto failed_no_mem;
}
platform_set_drvdata(pdev, hdmi_ctrl);
hdmi_ctrl->pdev = pdev;
rc = hdmi_tx_get_dt_data(pdev, &hdmi_ctrl->pdata);
if (rc) {
DEV_ERR("%s: FAILED: parsing device tree data. rc=%d\n",
__func__, rc);
goto failed_dt_data;
}
pan_cfg = mdss_panel_intf_type(MDSS_PANEL_INTF_HDMI);
if (IS_ERR(pan_cfg)) {
return PTR_ERR(pan_cfg);
} else if (pan_cfg) {
DEV_DBG("%s: HDMI is primary\n", __func__);
hdmi_ctrl->pdata.primary = true;
}
rc = hdmi_tx_init_resource(hdmi_ctrl);
if (rc) {
DEV_ERR("%s: FAILED: resource init. rc=%d\n",
__func__, rc);
goto failed_res_init;
}
rc = hdmi_tx_dev_init(hdmi_ctrl);
if (rc) {
DEV_ERR("%s: FAILED: hdmi_tx_dev_init. rc=%d\n", __func__, rc);
goto failed_dev_init;
}
rc = hdmi_tx_register_panel(hdmi_ctrl);
if (rc) {
DEV_ERR("%s: FAILED: register_panel. rc=%d\n", __func__, rc);
goto failed_reg_panel;
}
rc = of_platform_populate(of_node, NULL, NULL, &pdev->dev);
if (rc) {
DEV_ERR("%s: Failed to add child devices. rc=%d\n",
__func__, rc);
goto failed_reg_panel;
} else {
DEV_DBG("%s: Add child devices.\n", __func__);
}
if (mdss_debug_register_base("hdmi",
hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO].base,
hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO].len))
DEV_WARN("%s: hdmi_tx debugfs register failed\n", __func__);
return rc;
failed_reg_panel:
hdmi_tx_dev_deinit(hdmi_ctrl);
failed_dev_init:
hdmi_tx_deinit_resource(hdmi_ctrl);
failed_res_init:
hdmi_tx_put_dt_data(&pdev->dev, &hdmi_ctrl->pdata);
failed_dt_data:
devm_kfree(&pdev->dev, hdmi_ctrl);
failed_no_mem:
return rc;
} /* hdmi_tx_probe */
static int hdmi_tx_remove(struct platform_device *pdev)
{
struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev);
if (!hdmi_ctrl) {
DEV_ERR("%s: no driver data\n", __func__);
return -ENODEV;
}
hdmi_tx_sysfs_remove(hdmi_ctrl);
hdmi_tx_dev_deinit(hdmi_ctrl);
hdmi_tx_deinit_resource(hdmi_ctrl);
hdmi_tx_put_dt_data(&pdev->dev, &hdmi_ctrl->pdata);
devm_kfree(&hdmi_ctrl->pdev->dev, hdmi_ctrl);
return 0;
} /* hdmi_tx_remove */
static const struct of_device_id hdmi_tx_dt_match[] = {
{.compatible = COMPATIBLE_NAME,},
{ /* Sentinel */ },
};
MODULE_DEVICE_TABLE(of, hdmi_tx_dt_match);
static struct platform_driver this_driver = {
.probe = hdmi_tx_probe,
.remove = hdmi_tx_remove,
.driver = {
.name = DRV_NAME,
.of_match_table = hdmi_tx_dt_match,
},
};
static int __init hdmi_tx_drv_init(void)
{
int rc;
rc = platform_driver_register(&this_driver);
if (rc)
DEV_ERR("%s: FAILED: rc=%d\n", __func__, rc);
return rc;
} /* hdmi_tx_drv_init */
static void __exit hdmi_tx_drv_exit(void)
{
platform_driver_unregister(&this_driver);
} /* hdmi_tx_drv_exit */
static int set_hdcp_feature_on(const char *val, const struct kernel_param *kp)
{
int rc = 0;
rc = param_set_bool(val, kp);
if (!rc)
pr_debug("%s: HDCP feature = %d\n", __func__, hdcp_feature_on);
return rc;
}
static struct kernel_param_ops hdcp_feature_on_param_ops = {
.set = set_hdcp_feature_on,
.get = param_get_bool,
};
module_param_cb(hdcp, &hdcp_feature_on_param_ops, &hdcp_feature_on,
S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(hdcp, "Enable or Disable HDCP");
module_init(hdmi_tx_drv_init);
module_exit(hdmi_tx_drv_exit);
MODULE_LICENSE("GPL v2");
MODULE_VERSION("0.3");
MODULE_DESCRIPTION("HDMI MSM TX driver");