| /* |
| * Samsung HDMI interface driver |
| * |
| * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. |
| * |
| * Tomasz Stanislawski, <t.stanislaws@samsung.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published |
| * by the Free Software Foundiation. either version 2 of the License, |
| * or (at your option) any later version |
| */ |
| |
| #ifdef CONFIG_VIDEO_SAMSUNG_S5P_HDMI_DEBUG |
| #define DEBUG |
| #endif |
| |
| #include <linux/kernel.h> |
| #include <linux/slab.h> |
| #include <linux/io.h> |
| #include <linux/i2c.h> |
| #include <linux/platform_device.h> |
| #include <media/v4l2-subdev.h> |
| #include <linux/module.h> |
| #include <linux/interrupt.h> |
| #include <linux/irq.h> |
| #include <linux/delay.h> |
| #include <linux/bug.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/clk.h> |
| #include <linux/regulator/consumer.h> |
| |
| #include <media/v4l2-common.h> |
| #include <media/v4l2-dev.h> |
| #include <media/v4l2-device.h> |
| |
| #include "regs-hdmi.h" |
| |
| MODULE_AUTHOR("Tomasz Stanislawski, <t.stanislaws@samsung.com>"); |
| MODULE_DESCRIPTION("Samsung HDMI"); |
| MODULE_LICENSE("GPL"); |
| |
| /* default preset configured on probe */ |
| #define HDMI_DEFAULT_PRESET V4L2_DV_1080P60 |
| |
| struct hdmi_resources { |
| struct clk *hdmi; |
| struct clk *sclk_hdmi; |
| struct clk *sclk_pixel; |
| struct clk *sclk_hdmiphy; |
| struct clk *hdmiphy; |
| struct regulator_bulk_data *regul_bulk; |
| int regul_count; |
| }; |
| |
| struct hdmi_device { |
| /** base address of HDMI registers */ |
| void __iomem *regs; |
| /** HDMI interrupt */ |
| unsigned int irq; |
| /** pointer to device parent */ |
| struct device *dev; |
| /** subdev generated by HDMI device */ |
| struct v4l2_subdev sd; |
| /** V4L2 device structure */ |
| struct v4l2_device v4l2_dev; |
| /** subdev of HDMIPHY interface */ |
| struct v4l2_subdev *phy_sd; |
| /** configuration of current graphic mode */ |
| const struct hdmi_preset_conf *cur_conf; |
| /** current preset */ |
| u32 cur_preset; |
| /** other resources */ |
| struct hdmi_resources res; |
| }; |
| |
| struct hdmi_driver_data { |
| int hdmiphy_bus; |
| }; |
| |
| struct hdmi_tg_regs { |
| u8 cmd; |
| u8 h_fsz_l; |
| u8 h_fsz_h; |
| u8 hact_st_l; |
| u8 hact_st_h; |
| u8 hact_sz_l; |
| u8 hact_sz_h; |
| u8 v_fsz_l; |
| u8 v_fsz_h; |
| u8 vsync_l; |
| u8 vsync_h; |
| u8 vsync2_l; |
| u8 vsync2_h; |
| u8 vact_st_l; |
| u8 vact_st_h; |
| u8 vact_sz_l; |
| u8 vact_sz_h; |
| u8 field_chg_l; |
| u8 field_chg_h; |
| u8 vact_st2_l; |
| u8 vact_st2_h; |
| u8 vsync_top_hdmi_l; |
| u8 vsync_top_hdmi_h; |
| u8 vsync_bot_hdmi_l; |
| u8 vsync_bot_hdmi_h; |
| u8 field_top_hdmi_l; |
| u8 field_top_hdmi_h; |
| u8 field_bot_hdmi_l; |
| u8 field_bot_hdmi_h; |
| }; |
| |
| struct hdmi_core_regs { |
| u8 h_blank[2]; |
| u8 v_blank[3]; |
| u8 h_v_line[3]; |
| u8 vsync_pol[1]; |
| u8 int_pro_mode[1]; |
| u8 v_blank_f[3]; |
| u8 h_sync_gen[3]; |
| u8 v_sync_gen1[3]; |
| u8 v_sync_gen2[3]; |
| u8 v_sync_gen3[3]; |
| }; |
| |
| struct hdmi_preset_conf { |
| struct hdmi_core_regs core; |
| struct hdmi_tg_regs tg; |
| struct v4l2_mbus_framefmt mbus_fmt; |
| }; |
| |
| /* I2C module and id for HDMIPHY */ |
| static struct i2c_board_info hdmiphy_info = { |
| I2C_BOARD_INFO("hdmiphy", 0x38), |
| }; |
| |
| static struct hdmi_driver_data hdmi_driver_data[] = { |
| { .hdmiphy_bus = 3 }, |
| { .hdmiphy_bus = 8 }, |
| }; |
| |
| static struct platform_device_id hdmi_driver_types[] = { |
| { |
| .name = "s5pv210-hdmi", |
| .driver_data = (unsigned long)&hdmi_driver_data[0], |
| }, { |
| .name = "exynos4-hdmi", |
| .driver_data = (unsigned long)&hdmi_driver_data[1], |
| }, { |
| /* end node */ |
| } |
| }; |
| |
| static const struct v4l2_subdev_ops hdmi_sd_ops; |
| |
| static struct hdmi_device *sd_to_hdmi_dev(struct v4l2_subdev *sd) |
| { |
| return container_of(sd, struct hdmi_device, sd); |
| } |
| |
| static inline |
| void hdmi_write(struct hdmi_device *hdev, u32 reg_id, u32 value) |
| { |
| writel(value, hdev->regs + reg_id); |
| } |
| |
| static inline |
| void hdmi_write_mask(struct hdmi_device *hdev, u32 reg_id, u32 value, u32 mask) |
| { |
| u32 old = readl(hdev->regs + reg_id); |
| value = (value & mask) | (old & ~mask); |
| writel(value, hdev->regs + reg_id); |
| } |
| |
| static inline |
| void hdmi_writeb(struct hdmi_device *hdev, u32 reg_id, u8 value) |
| { |
| writeb(value, hdev->regs + reg_id); |
| } |
| |
| static inline u32 hdmi_read(struct hdmi_device *hdev, u32 reg_id) |
| { |
| return readl(hdev->regs + reg_id); |
| } |
| |
| static irqreturn_t hdmi_irq_handler(int irq, void *dev_data) |
| { |
| struct hdmi_device *hdev = dev_data; |
| u32 intc_flag; |
| |
| (void)irq; |
| intc_flag = hdmi_read(hdev, HDMI_INTC_FLAG); |
| /* clearing flags for HPD plug/unplug */ |
| if (intc_flag & HDMI_INTC_FLAG_HPD_UNPLUG) { |
| printk(KERN_INFO "unplugged\n"); |
| hdmi_write_mask(hdev, HDMI_INTC_FLAG, ~0, |
| HDMI_INTC_FLAG_HPD_UNPLUG); |
| } |
| if (intc_flag & HDMI_INTC_FLAG_HPD_PLUG) { |
| printk(KERN_INFO "plugged\n"); |
| hdmi_write_mask(hdev, HDMI_INTC_FLAG, ~0, |
| HDMI_INTC_FLAG_HPD_PLUG); |
| } |
| |
| return IRQ_HANDLED; |
| } |
| |
| static void hdmi_reg_init(struct hdmi_device *hdev) |
| { |
| /* enable HPD interrupts */ |
| hdmi_write_mask(hdev, HDMI_INTC_CON, ~0, HDMI_INTC_EN_GLOBAL | |
| HDMI_INTC_EN_HPD_PLUG | HDMI_INTC_EN_HPD_UNPLUG); |
| /* choose HDMI mode */ |
| hdmi_write_mask(hdev, HDMI_MODE_SEL, |
| HDMI_MODE_HDMI_EN, HDMI_MODE_MASK); |
| /* disable bluescreen */ |
| hdmi_write_mask(hdev, HDMI_CON_0, 0, HDMI_BLUE_SCR_EN); |
| /* choose bluescreen (fecal) color */ |
| hdmi_writeb(hdev, HDMI_BLUE_SCREEN_0, 0x12); |
| hdmi_writeb(hdev, HDMI_BLUE_SCREEN_1, 0x34); |
| hdmi_writeb(hdev, HDMI_BLUE_SCREEN_2, 0x56); |
| /* enable AVI packet every vsync, fixes purple line problem */ |
| hdmi_writeb(hdev, HDMI_AVI_CON, 0x02); |
| /* force YUV444, look to CEA-861-D, table 7 for more detail */ |
| hdmi_writeb(hdev, HDMI_AVI_BYTE(0), 2 << 5); |
| hdmi_write_mask(hdev, HDMI_CON_1, 2, 3 << 5); |
| } |
| |
| static void hdmi_timing_apply(struct hdmi_device *hdev, |
| const struct hdmi_preset_conf *conf) |
| { |
| const struct hdmi_core_regs *core = &conf->core; |
| const struct hdmi_tg_regs *tg = &conf->tg; |
| |
| /* setting core registers */ |
| hdmi_writeb(hdev, HDMI_H_BLANK_0, core->h_blank[0]); |
| hdmi_writeb(hdev, HDMI_H_BLANK_1, core->h_blank[1]); |
| hdmi_writeb(hdev, HDMI_V_BLANK_0, core->v_blank[0]); |
| hdmi_writeb(hdev, HDMI_V_BLANK_1, core->v_blank[1]); |
| hdmi_writeb(hdev, HDMI_V_BLANK_2, core->v_blank[2]); |
| hdmi_writeb(hdev, HDMI_H_V_LINE_0, core->h_v_line[0]); |
| hdmi_writeb(hdev, HDMI_H_V_LINE_1, core->h_v_line[1]); |
| hdmi_writeb(hdev, HDMI_H_V_LINE_2, core->h_v_line[2]); |
| hdmi_writeb(hdev, HDMI_VSYNC_POL, core->vsync_pol[0]); |
| hdmi_writeb(hdev, HDMI_INT_PRO_MODE, core->int_pro_mode[0]); |
| hdmi_writeb(hdev, HDMI_V_BLANK_F_0, core->v_blank_f[0]); |
| hdmi_writeb(hdev, HDMI_V_BLANK_F_1, core->v_blank_f[1]); |
| hdmi_writeb(hdev, HDMI_V_BLANK_F_2, core->v_blank_f[2]); |
| hdmi_writeb(hdev, HDMI_H_SYNC_GEN_0, core->h_sync_gen[0]); |
| hdmi_writeb(hdev, HDMI_H_SYNC_GEN_1, core->h_sync_gen[1]); |
| hdmi_writeb(hdev, HDMI_H_SYNC_GEN_2, core->h_sync_gen[2]); |
| hdmi_writeb(hdev, HDMI_V_SYNC_GEN_1_0, core->v_sync_gen1[0]); |
| hdmi_writeb(hdev, HDMI_V_SYNC_GEN_1_1, core->v_sync_gen1[1]); |
| hdmi_writeb(hdev, HDMI_V_SYNC_GEN_1_2, core->v_sync_gen1[2]); |
| hdmi_writeb(hdev, HDMI_V_SYNC_GEN_2_0, core->v_sync_gen2[0]); |
| hdmi_writeb(hdev, HDMI_V_SYNC_GEN_2_1, core->v_sync_gen2[1]); |
| hdmi_writeb(hdev, HDMI_V_SYNC_GEN_2_2, core->v_sync_gen2[2]); |
| hdmi_writeb(hdev, HDMI_V_SYNC_GEN_3_0, core->v_sync_gen3[0]); |
| hdmi_writeb(hdev, HDMI_V_SYNC_GEN_3_1, core->v_sync_gen3[1]); |
| hdmi_writeb(hdev, HDMI_V_SYNC_GEN_3_2, core->v_sync_gen3[2]); |
| /* Timing generator registers */ |
| hdmi_writeb(hdev, HDMI_TG_H_FSZ_L, tg->h_fsz_l); |
| hdmi_writeb(hdev, HDMI_TG_H_FSZ_H, tg->h_fsz_h); |
| hdmi_writeb(hdev, HDMI_TG_HACT_ST_L, tg->hact_st_l); |
| hdmi_writeb(hdev, HDMI_TG_HACT_ST_H, tg->hact_st_h); |
| hdmi_writeb(hdev, HDMI_TG_HACT_SZ_L, tg->hact_sz_l); |
| hdmi_writeb(hdev, HDMI_TG_HACT_SZ_H, tg->hact_sz_h); |
| hdmi_writeb(hdev, HDMI_TG_V_FSZ_L, tg->v_fsz_l); |
| hdmi_writeb(hdev, HDMI_TG_V_FSZ_H, tg->v_fsz_h); |
| hdmi_writeb(hdev, HDMI_TG_VSYNC_L, tg->vsync_l); |
| hdmi_writeb(hdev, HDMI_TG_VSYNC_H, tg->vsync_h); |
| hdmi_writeb(hdev, HDMI_TG_VSYNC2_L, tg->vsync2_l); |
| hdmi_writeb(hdev, HDMI_TG_VSYNC2_H, tg->vsync2_h); |
| hdmi_writeb(hdev, HDMI_TG_VACT_ST_L, tg->vact_st_l); |
| hdmi_writeb(hdev, HDMI_TG_VACT_ST_H, tg->vact_st_h); |
| hdmi_writeb(hdev, HDMI_TG_VACT_SZ_L, tg->vact_sz_l); |
| hdmi_writeb(hdev, HDMI_TG_VACT_SZ_H, tg->vact_sz_h); |
| hdmi_writeb(hdev, HDMI_TG_FIELD_CHG_L, tg->field_chg_l); |
| hdmi_writeb(hdev, HDMI_TG_FIELD_CHG_H, tg->field_chg_h); |
| hdmi_writeb(hdev, HDMI_TG_VACT_ST2_L, tg->vact_st2_l); |
| hdmi_writeb(hdev, HDMI_TG_VACT_ST2_H, tg->vact_st2_h); |
| hdmi_writeb(hdev, HDMI_TG_VSYNC_TOP_HDMI_L, tg->vsync_top_hdmi_l); |
| hdmi_writeb(hdev, HDMI_TG_VSYNC_TOP_HDMI_H, tg->vsync_top_hdmi_h); |
| hdmi_writeb(hdev, HDMI_TG_VSYNC_BOT_HDMI_L, tg->vsync_bot_hdmi_l); |
| hdmi_writeb(hdev, HDMI_TG_VSYNC_BOT_HDMI_H, tg->vsync_bot_hdmi_h); |
| hdmi_writeb(hdev, HDMI_TG_FIELD_TOP_HDMI_L, tg->field_top_hdmi_l); |
| hdmi_writeb(hdev, HDMI_TG_FIELD_TOP_HDMI_H, tg->field_top_hdmi_h); |
| hdmi_writeb(hdev, HDMI_TG_FIELD_BOT_HDMI_L, tg->field_bot_hdmi_l); |
| hdmi_writeb(hdev, HDMI_TG_FIELD_BOT_HDMI_H, tg->field_bot_hdmi_h); |
| } |
| |
| static int hdmi_conf_apply(struct hdmi_device *hdmi_dev) |
| { |
| struct device *dev = hdmi_dev->dev; |
| const struct hdmi_preset_conf *conf = hdmi_dev->cur_conf; |
| struct v4l2_dv_preset preset; |
| int ret; |
| |
| dev_dbg(dev, "%s\n", __func__); |
| |
| /* reset hdmiphy */ |
| hdmi_write_mask(hdmi_dev, HDMI_PHY_RSTOUT, ~0, HDMI_PHY_SW_RSTOUT); |
| mdelay(10); |
| hdmi_write_mask(hdmi_dev, HDMI_PHY_RSTOUT, 0, HDMI_PHY_SW_RSTOUT); |
| mdelay(10); |
| |
| /* configure presets */ |
| preset.preset = hdmi_dev->cur_preset; |
| ret = v4l2_subdev_call(hdmi_dev->phy_sd, video, s_dv_preset, &preset); |
| if (ret) { |
| dev_err(dev, "failed to set preset (%u)\n", preset.preset); |
| return ret; |
| } |
| |
| /* resetting HDMI core */ |
| hdmi_write_mask(hdmi_dev, HDMI_CORE_RSTOUT, 0, HDMI_CORE_SW_RSTOUT); |
| mdelay(10); |
| hdmi_write_mask(hdmi_dev, HDMI_CORE_RSTOUT, ~0, HDMI_CORE_SW_RSTOUT); |
| mdelay(10); |
| |
| hdmi_reg_init(hdmi_dev); |
| |
| /* setting core registers */ |
| hdmi_timing_apply(hdmi_dev, conf); |
| |
| return 0; |
| } |
| |
| static void hdmi_dumpregs(struct hdmi_device *hdev, char *prefix) |
| { |
| #define DUMPREG(reg_id) \ |
| dev_dbg(hdev->dev, "%s:" #reg_id " = %08x\n", prefix, \ |
| readl(hdev->regs + reg_id)) |
| |
| dev_dbg(hdev->dev, "%s: ---- CONTROL REGISTERS ----\n", prefix); |
| DUMPREG(HDMI_INTC_FLAG); |
| DUMPREG(HDMI_INTC_CON); |
| DUMPREG(HDMI_HPD_STATUS); |
| DUMPREG(HDMI_PHY_RSTOUT); |
| DUMPREG(HDMI_PHY_VPLL); |
| DUMPREG(HDMI_PHY_CMU); |
| DUMPREG(HDMI_CORE_RSTOUT); |
| |
| dev_dbg(hdev->dev, "%s: ---- CORE REGISTERS ----\n", prefix); |
| DUMPREG(HDMI_CON_0); |
| DUMPREG(HDMI_CON_1); |
| DUMPREG(HDMI_CON_2); |
| DUMPREG(HDMI_SYS_STATUS); |
| DUMPREG(HDMI_PHY_STATUS); |
| DUMPREG(HDMI_STATUS_EN); |
| DUMPREG(HDMI_HPD); |
| DUMPREG(HDMI_MODE_SEL); |
| DUMPREG(HDMI_HPD_GEN); |
| DUMPREG(HDMI_DC_CONTROL); |
| DUMPREG(HDMI_VIDEO_PATTERN_GEN); |
| |
| dev_dbg(hdev->dev, "%s: ---- CORE SYNC REGISTERS ----\n", prefix); |
| DUMPREG(HDMI_H_BLANK_0); |
| DUMPREG(HDMI_H_BLANK_1); |
| DUMPREG(HDMI_V_BLANK_0); |
| DUMPREG(HDMI_V_BLANK_1); |
| DUMPREG(HDMI_V_BLANK_2); |
| DUMPREG(HDMI_H_V_LINE_0); |
| DUMPREG(HDMI_H_V_LINE_1); |
| DUMPREG(HDMI_H_V_LINE_2); |
| DUMPREG(HDMI_VSYNC_POL); |
| DUMPREG(HDMI_INT_PRO_MODE); |
| DUMPREG(HDMI_V_BLANK_F_0); |
| DUMPREG(HDMI_V_BLANK_F_1); |
| DUMPREG(HDMI_V_BLANK_F_2); |
| DUMPREG(HDMI_H_SYNC_GEN_0); |
| DUMPREG(HDMI_H_SYNC_GEN_1); |
| DUMPREG(HDMI_H_SYNC_GEN_2); |
| DUMPREG(HDMI_V_SYNC_GEN_1_0); |
| DUMPREG(HDMI_V_SYNC_GEN_1_1); |
| DUMPREG(HDMI_V_SYNC_GEN_1_2); |
| DUMPREG(HDMI_V_SYNC_GEN_2_0); |
| DUMPREG(HDMI_V_SYNC_GEN_2_1); |
| DUMPREG(HDMI_V_SYNC_GEN_2_2); |
| DUMPREG(HDMI_V_SYNC_GEN_3_0); |
| DUMPREG(HDMI_V_SYNC_GEN_3_1); |
| DUMPREG(HDMI_V_SYNC_GEN_3_2); |
| |
| dev_dbg(hdev->dev, "%s: ---- TG REGISTERS ----\n", prefix); |
| DUMPREG(HDMI_TG_CMD); |
| DUMPREG(HDMI_TG_H_FSZ_L); |
| DUMPREG(HDMI_TG_H_FSZ_H); |
| DUMPREG(HDMI_TG_HACT_ST_L); |
| DUMPREG(HDMI_TG_HACT_ST_H); |
| DUMPREG(HDMI_TG_HACT_SZ_L); |
| DUMPREG(HDMI_TG_HACT_SZ_H); |
| DUMPREG(HDMI_TG_V_FSZ_L); |
| DUMPREG(HDMI_TG_V_FSZ_H); |
| DUMPREG(HDMI_TG_VSYNC_L); |
| DUMPREG(HDMI_TG_VSYNC_H); |
| DUMPREG(HDMI_TG_VSYNC2_L); |
| DUMPREG(HDMI_TG_VSYNC2_H); |
| DUMPREG(HDMI_TG_VACT_ST_L); |
| DUMPREG(HDMI_TG_VACT_ST_H); |
| DUMPREG(HDMI_TG_VACT_SZ_L); |
| DUMPREG(HDMI_TG_VACT_SZ_H); |
| DUMPREG(HDMI_TG_FIELD_CHG_L); |
| DUMPREG(HDMI_TG_FIELD_CHG_H); |
| DUMPREG(HDMI_TG_VACT_ST2_L); |
| DUMPREG(HDMI_TG_VACT_ST2_H); |
| DUMPREG(HDMI_TG_VSYNC_TOP_HDMI_L); |
| DUMPREG(HDMI_TG_VSYNC_TOP_HDMI_H); |
| DUMPREG(HDMI_TG_VSYNC_BOT_HDMI_L); |
| DUMPREG(HDMI_TG_VSYNC_BOT_HDMI_H); |
| DUMPREG(HDMI_TG_FIELD_TOP_HDMI_L); |
| DUMPREG(HDMI_TG_FIELD_TOP_HDMI_H); |
| DUMPREG(HDMI_TG_FIELD_BOT_HDMI_L); |
| DUMPREG(HDMI_TG_FIELD_BOT_HDMI_H); |
| #undef DUMPREG |
| } |
| |
| static const struct hdmi_preset_conf hdmi_conf_480p = { |
| .core = { |
| .h_blank = {0x8a, 0x00}, |
| .v_blank = {0x0d, 0x6a, 0x01}, |
| .h_v_line = {0x0d, 0xa2, 0x35}, |
| .vsync_pol = {0x01}, |
| .int_pro_mode = {0x00}, |
| .v_blank_f = {0x00, 0x00, 0x00}, |
| .h_sync_gen = {0x0e, 0x30, 0x11}, |
| .v_sync_gen1 = {0x0f, 0x90, 0x00}, |
| /* other don't care */ |
| }, |
| .tg = { |
| 0x00, /* cmd */ |
| 0x5a, 0x03, /* h_fsz */ |
| 0x8a, 0x00, 0xd0, 0x02, /* hact */ |
| 0x0d, 0x02, /* v_fsz */ |
| 0x01, 0x00, 0x33, 0x02, /* vsync */ |
| 0x2d, 0x00, 0xe0, 0x01, /* vact */ |
| 0x33, 0x02, /* field_chg */ |
| 0x49, 0x02, /* vact_st2 */ |
| 0x01, 0x00, 0x33, 0x02, /* vsync top/bot */ |
| 0x01, 0x00, 0x33, 0x02, /* field top/bot */ |
| }, |
| .mbus_fmt = { |
| .width = 720, |
| .height = 480, |
| .code = V4L2_MBUS_FMT_FIXED, /* means RGB888 */ |
| .field = V4L2_FIELD_NONE, |
| }, |
| }; |
| |
| static const struct hdmi_preset_conf hdmi_conf_720p60 = { |
| .core = { |
| .h_blank = {0x72, 0x01}, |
| .v_blank = {0xee, 0xf2, 0x00}, |
| .h_v_line = {0xee, 0x22, 0x67}, |
| .vsync_pol = {0x00}, |
| .int_pro_mode = {0x00}, |
| .v_blank_f = {0x00, 0x00, 0x00}, /* don't care */ |
| .h_sync_gen = {0x6c, 0x50, 0x02}, |
| .v_sync_gen1 = {0x0a, 0x50, 0x00}, |
| /* other don't care */ |
| }, |
| .tg = { |
| 0x00, /* cmd */ |
| 0x72, 0x06, /* h_fsz */ |
| 0x72, 0x01, 0x00, 0x05, /* hact */ |
| 0xee, 0x02, /* v_fsz */ |
| 0x01, 0x00, 0x33, 0x02, /* vsync */ |
| 0x1e, 0x00, 0xd0, 0x02, /* vact */ |
| 0x33, 0x02, /* field_chg */ |
| 0x49, 0x02, /* vact_st2 */ |
| 0x01, 0x00, 0x33, 0x02, /* vsync top/bot */ |
| 0x01, 0x00, 0x33, 0x02, /* field top/bot */ |
| }, |
| .mbus_fmt = { |
| .width = 1280, |
| .height = 720, |
| .code = V4L2_MBUS_FMT_FIXED, /* means RGB888 */ |
| .field = V4L2_FIELD_NONE, |
| }, |
| }; |
| |
| static const struct hdmi_preset_conf hdmi_conf_1080p50 = { |
| .core = { |
| .h_blank = {0xd0, 0x02}, |
| .v_blank = {0x65, 0x6c, 0x01}, |
| .h_v_line = {0x65, 0x04, 0xa5}, |
| .vsync_pol = {0x00}, |
| .int_pro_mode = {0x00}, |
| .v_blank_f = {0x00, 0x00, 0x00}, /* don't care */ |
| .h_sync_gen = {0x0e, 0xea, 0x08}, |
| .v_sync_gen1 = {0x09, 0x40, 0x00}, |
| /* other don't care */ |
| }, |
| .tg = { |
| 0x00, /* cmd */ |
| 0x98, 0x08, /* h_fsz */ |
| 0x18, 0x01, 0x80, 0x07, /* hact */ |
| 0x65, 0x04, /* v_fsz */ |
| 0x01, 0x00, 0x33, 0x02, /* vsync */ |
| 0x2d, 0x00, 0x38, 0x04, /* vact */ |
| 0x33, 0x02, /* field_chg */ |
| 0x49, 0x02, /* vact_st2 */ |
| 0x01, 0x00, 0x33, 0x02, /* vsync top/bot */ |
| 0x01, 0x00, 0x33, 0x02, /* field top/bot */ |
| }, |
| .mbus_fmt = { |
| .width = 1920, |
| .height = 1080, |
| .code = V4L2_MBUS_FMT_FIXED, /* means RGB888 */ |
| .field = V4L2_FIELD_NONE, |
| }, |
| }; |
| |
| static const struct hdmi_preset_conf hdmi_conf_1080p60 = { |
| .core = { |
| .h_blank = {0x18, 0x01}, |
| .v_blank = {0x65, 0x6c, 0x01}, |
| .h_v_line = {0x65, 0x84, 0x89}, |
| .vsync_pol = {0x00}, |
| .int_pro_mode = {0x00}, |
| .v_blank_f = {0x00, 0x00, 0x00}, /* don't care */ |
| .h_sync_gen = {0x56, 0x08, 0x02}, |
| .v_sync_gen1 = {0x09, 0x40, 0x00}, |
| /* other don't care */ |
| }, |
| .tg = { |
| 0x00, /* cmd */ |
| 0x98, 0x08, /* h_fsz */ |
| 0x18, 0x01, 0x80, 0x07, /* hact */ |
| 0x65, 0x04, /* v_fsz */ |
| 0x01, 0x00, 0x33, 0x02, /* vsync */ |
| 0x2d, 0x00, 0x38, 0x04, /* vact */ |
| 0x33, 0x02, /* field_chg */ |
| 0x48, 0x02, /* vact_st2 */ |
| 0x01, 0x00, 0x01, 0x00, /* vsync top/bot */ |
| 0x01, 0x00, 0x33, 0x02, /* field top/bot */ |
| }, |
| .mbus_fmt = { |
| .width = 1920, |
| .height = 1080, |
| .code = V4L2_MBUS_FMT_FIXED, /* means RGB888 */ |
| .field = V4L2_FIELD_NONE, |
| }, |
| }; |
| |
| static const struct { |
| u32 preset; |
| const struct hdmi_preset_conf *conf; |
| } hdmi_conf[] = { |
| { V4L2_DV_480P59_94, &hdmi_conf_480p }, |
| { V4L2_DV_720P59_94, &hdmi_conf_720p60 }, |
| { V4L2_DV_1080P50, &hdmi_conf_1080p50 }, |
| { V4L2_DV_1080P30, &hdmi_conf_1080p60 }, |
| { V4L2_DV_1080P60, &hdmi_conf_1080p60 }, |
| }; |
| |
| static const struct hdmi_preset_conf *hdmi_preset2conf(u32 preset) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(hdmi_conf); ++i) |
| if (hdmi_conf[i].preset == preset) |
| return hdmi_conf[i].conf; |
| return NULL; |
| } |
| |
| static int hdmi_streamon(struct hdmi_device *hdev) |
| { |
| struct device *dev = hdev->dev; |
| struct hdmi_resources *res = &hdev->res; |
| int ret, tries; |
| |
| dev_dbg(dev, "%s\n", __func__); |
| |
| ret = v4l2_subdev_call(hdev->phy_sd, video, s_stream, 1); |
| if (ret) |
| return ret; |
| |
| /* waiting for HDMIPHY's PLL to get to steady state */ |
| for (tries = 100; tries; --tries) { |
| u32 val = hdmi_read(hdev, HDMI_PHY_STATUS); |
| if (val & HDMI_PHY_STATUS_READY) |
| break; |
| mdelay(1); |
| } |
| /* steady state not achieved */ |
| if (tries == 0) { |
| dev_err(dev, "hdmiphy's pll could not reach steady state.\n"); |
| v4l2_subdev_call(hdev->phy_sd, video, s_stream, 0); |
| hdmi_dumpregs(hdev, "s_stream"); |
| return -EIO; |
| } |
| |
| /* hdmiphy clock is used for HDMI in streaming mode */ |
| clk_disable(res->sclk_hdmi); |
| clk_set_parent(res->sclk_hdmi, res->sclk_hdmiphy); |
| clk_enable(res->sclk_hdmi); |
| |
| /* enable HDMI and timing generator */ |
| hdmi_write_mask(hdev, HDMI_CON_0, ~0, HDMI_EN); |
| hdmi_write_mask(hdev, HDMI_TG_CMD, ~0, HDMI_TG_EN); |
| hdmi_dumpregs(hdev, "streamon"); |
| return 0; |
| } |
| |
| static int hdmi_streamoff(struct hdmi_device *hdev) |
| { |
| struct device *dev = hdev->dev; |
| struct hdmi_resources *res = &hdev->res; |
| |
| dev_dbg(dev, "%s\n", __func__); |
| |
| hdmi_write_mask(hdev, HDMI_CON_0, 0, HDMI_EN); |
| hdmi_write_mask(hdev, HDMI_TG_CMD, 0, HDMI_TG_EN); |
| |
| /* pixel(vpll) clock is used for HDMI in config mode */ |
| clk_disable(res->sclk_hdmi); |
| clk_set_parent(res->sclk_hdmi, res->sclk_pixel); |
| clk_enable(res->sclk_hdmi); |
| |
| v4l2_subdev_call(hdev->phy_sd, video, s_stream, 0); |
| |
| hdmi_dumpregs(hdev, "streamoff"); |
| return 0; |
| } |
| |
| static int hdmi_s_stream(struct v4l2_subdev *sd, int enable) |
| { |
| struct hdmi_device *hdev = sd_to_hdmi_dev(sd); |
| struct device *dev = hdev->dev; |
| |
| dev_dbg(dev, "%s(%d)\n", __func__, enable); |
| if (enable) |
| return hdmi_streamon(hdev); |
| return hdmi_streamoff(hdev); |
| } |
| |
| static void hdmi_resource_poweron(struct hdmi_resources *res) |
| { |
| /* turn HDMI power on */ |
| regulator_bulk_enable(res->regul_count, res->regul_bulk); |
| /* power-on hdmi physical interface */ |
| clk_enable(res->hdmiphy); |
| /* use VPP as parent clock; HDMIPHY is not working yet */ |
| clk_set_parent(res->sclk_hdmi, res->sclk_pixel); |
| /* turn clocks on */ |
| clk_enable(res->sclk_hdmi); |
| } |
| |
| static void hdmi_resource_poweroff(struct hdmi_resources *res) |
| { |
| /* turn clocks off */ |
| clk_disable(res->sclk_hdmi); |
| /* power-off hdmiphy */ |
| clk_disable(res->hdmiphy); |
| /* turn HDMI power off */ |
| regulator_bulk_disable(res->regul_count, res->regul_bulk); |
| } |
| |
| static int hdmi_s_power(struct v4l2_subdev *sd, int on) |
| { |
| struct hdmi_device *hdev = sd_to_hdmi_dev(sd); |
| int ret; |
| |
| if (on) |
| ret = pm_runtime_get_sync(hdev->dev); |
| else |
| ret = pm_runtime_put_sync(hdev->dev); |
| /* only values < 0 indicate errors */ |
| return IS_ERR_VALUE(ret) ? ret : 0; |
| } |
| |
| static int hdmi_s_dv_preset(struct v4l2_subdev *sd, |
| struct v4l2_dv_preset *preset) |
| { |
| struct hdmi_device *hdev = sd_to_hdmi_dev(sd); |
| struct device *dev = hdev->dev; |
| const struct hdmi_preset_conf *conf; |
| |
| conf = hdmi_preset2conf(preset->preset); |
| if (conf == NULL) { |
| dev_err(dev, "preset (%u) not supported\n", preset->preset); |
| return -EINVAL; |
| } |
| hdev->cur_conf = conf; |
| hdev->cur_preset = preset->preset; |
| return 0; |
| } |
| |
| static int hdmi_g_dv_preset(struct v4l2_subdev *sd, |
| struct v4l2_dv_preset *preset) |
| { |
| memset(preset, 0, sizeof(*preset)); |
| preset->preset = sd_to_hdmi_dev(sd)->cur_preset; |
| return 0; |
| } |
| |
| static int hdmi_g_mbus_fmt(struct v4l2_subdev *sd, |
| struct v4l2_mbus_framefmt *fmt) |
| { |
| struct hdmi_device *hdev = sd_to_hdmi_dev(sd); |
| struct device *dev = hdev->dev; |
| |
| dev_dbg(dev, "%s\n", __func__); |
| if (!hdev->cur_conf) |
| return -EINVAL; |
| *fmt = hdev->cur_conf->mbus_fmt; |
| return 0; |
| } |
| |
| static int hdmi_enum_dv_presets(struct v4l2_subdev *sd, |
| struct v4l2_dv_enum_preset *preset) |
| { |
| if (preset->index >= ARRAY_SIZE(hdmi_conf)) |
| return -EINVAL; |
| return v4l_fill_dv_preset_info(hdmi_conf[preset->index].preset, preset); |
| } |
| |
| static const struct v4l2_subdev_core_ops hdmi_sd_core_ops = { |
| .s_power = hdmi_s_power, |
| }; |
| |
| static const struct v4l2_subdev_video_ops hdmi_sd_video_ops = { |
| .s_dv_preset = hdmi_s_dv_preset, |
| .g_dv_preset = hdmi_g_dv_preset, |
| .enum_dv_presets = hdmi_enum_dv_presets, |
| .g_mbus_fmt = hdmi_g_mbus_fmt, |
| .s_stream = hdmi_s_stream, |
| }; |
| |
| static const struct v4l2_subdev_ops hdmi_sd_ops = { |
| .core = &hdmi_sd_core_ops, |
| .video = &hdmi_sd_video_ops, |
| }; |
| |
| static int hdmi_runtime_suspend(struct device *dev) |
| { |
| struct v4l2_subdev *sd = dev_get_drvdata(dev); |
| struct hdmi_device *hdev = sd_to_hdmi_dev(sd); |
| |
| dev_dbg(dev, "%s\n", __func__); |
| hdmi_resource_poweroff(&hdev->res); |
| return 0; |
| } |
| |
| static int hdmi_runtime_resume(struct device *dev) |
| { |
| struct v4l2_subdev *sd = dev_get_drvdata(dev); |
| struct hdmi_device *hdev = sd_to_hdmi_dev(sd); |
| int ret = 0; |
| |
| dev_dbg(dev, "%s\n", __func__); |
| |
| hdmi_resource_poweron(&hdev->res); |
| |
| ret = hdmi_conf_apply(hdev); |
| if (ret) |
| goto fail; |
| |
| dev_dbg(dev, "poweron succeed\n"); |
| |
| return 0; |
| |
| fail: |
| hdmi_resource_poweroff(&hdev->res); |
| dev_err(dev, "poweron failed\n"); |
| |
| return ret; |
| } |
| |
| static const struct dev_pm_ops hdmi_pm_ops = { |
| .runtime_suspend = hdmi_runtime_suspend, |
| .runtime_resume = hdmi_runtime_resume, |
| }; |
| |
| static void hdmi_resources_cleanup(struct hdmi_device *hdev) |
| { |
| struct hdmi_resources *res = &hdev->res; |
| |
| dev_dbg(hdev->dev, "HDMI resource cleanup\n"); |
| /* put clocks, power */ |
| if (res->regul_count) |
| regulator_bulk_free(res->regul_count, res->regul_bulk); |
| /* kfree is NULL-safe */ |
| kfree(res->regul_bulk); |
| if (!IS_ERR_OR_NULL(res->hdmiphy)) |
| clk_put(res->hdmiphy); |
| if (!IS_ERR_OR_NULL(res->sclk_hdmiphy)) |
| clk_put(res->sclk_hdmiphy); |
| if (!IS_ERR_OR_NULL(res->sclk_pixel)) |
| clk_put(res->sclk_pixel); |
| if (!IS_ERR_OR_NULL(res->sclk_hdmi)) |
| clk_put(res->sclk_hdmi); |
| if (!IS_ERR_OR_NULL(res->hdmi)) |
| clk_put(res->hdmi); |
| memset(res, 0, sizeof *res); |
| } |
| |
| static int hdmi_resources_init(struct hdmi_device *hdev) |
| { |
| struct device *dev = hdev->dev; |
| struct hdmi_resources *res = &hdev->res; |
| static char *supply[] = { |
| "hdmi-en", |
| "vdd", |
| "vdd_osc", |
| "vdd_pll", |
| }; |
| int i, ret; |
| |
| dev_dbg(dev, "HDMI resource init\n"); |
| |
| memset(res, 0, sizeof *res); |
| /* get clocks, power */ |
| |
| res->hdmi = clk_get(dev, "hdmi"); |
| if (IS_ERR_OR_NULL(res->hdmi)) { |
| dev_err(dev, "failed to get clock 'hdmi'\n"); |
| goto fail; |
| } |
| res->sclk_hdmi = clk_get(dev, "sclk_hdmi"); |
| if (IS_ERR_OR_NULL(res->sclk_hdmi)) { |
| dev_err(dev, "failed to get clock 'sclk_hdmi'\n"); |
| goto fail; |
| } |
| res->sclk_pixel = clk_get(dev, "sclk_pixel"); |
| if (IS_ERR_OR_NULL(res->sclk_pixel)) { |
| dev_err(dev, "failed to get clock 'sclk_pixel'\n"); |
| goto fail; |
| } |
| res->sclk_hdmiphy = clk_get(dev, "sclk_hdmiphy"); |
| if (IS_ERR_OR_NULL(res->sclk_hdmiphy)) { |
| dev_err(dev, "failed to get clock 'sclk_hdmiphy'\n"); |
| goto fail; |
| } |
| res->hdmiphy = clk_get(dev, "hdmiphy"); |
| if (IS_ERR_OR_NULL(res->hdmiphy)) { |
| dev_err(dev, "failed to get clock 'hdmiphy'\n"); |
| goto fail; |
| } |
| res->regul_bulk = kzalloc(ARRAY_SIZE(supply) * |
| sizeof res->regul_bulk[0], GFP_KERNEL); |
| if (!res->regul_bulk) { |
| dev_err(dev, "failed to get memory for regulators\n"); |
| goto fail; |
| } |
| for (i = 0; i < ARRAY_SIZE(supply); ++i) { |
| res->regul_bulk[i].supply = supply[i]; |
| res->regul_bulk[i].consumer = NULL; |
| } |
| |
| ret = regulator_bulk_get(dev, ARRAY_SIZE(supply), res->regul_bulk); |
| if (ret) { |
| dev_err(dev, "failed to get regulators\n"); |
| goto fail; |
| } |
| res->regul_count = ARRAY_SIZE(supply); |
| |
| return 0; |
| fail: |
| dev_err(dev, "HDMI resource init - failed\n"); |
| hdmi_resources_cleanup(hdev); |
| return -ENODEV; |
| } |
| |
| static int __devinit hdmi_probe(struct platform_device *pdev) |
| { |
| struct device *dev = &pdev->dev; |
| struct resource *res; |
| struct i2c_adapter *phy_adapter; |
| struct v4l2_subdev *sd; |
| struct hdmi_device *hdmi_dev = NULL; |
| struct hdmi_driver_data *drv_data; |
| int ret; |
| |
| dev_dbg(dev, "probe start\n"); |
| |
| hdmi_dev = kzalloc(sizeof(*hdmi_dev), GFP_KERNEL); |
| if (!hdmi_dev) { |
| dev_err(dev, "out of memory\n"); |
| ret = -ENOMEM; |
| goto fail; |
| } |
| |
| hdmi_dev->dev = dev; |
| |
| ret = hdmi_resources_init(hdmi_dev); |
| if (ret) |
| goto fail_hdev; |
| |
| /* mapping HDMI registers */ |
| res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| if (res == NULL) { |
| dev_err(dev, "get memory resource failed.\n"); |
| ret = -ENXIO; |
| goto fail_init; |
| } |
| |
| hdmi_dev->regs = ioremap(res->start, resource_size(res)); |
| if (hdmi_dev->regs == NULL) { |
| dev_err(dev, "register mapping failed.\n"); |
| ret = -ENXIO; |
| goto fail_hdev; |
| } |
| |
| res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| if (res == NULL) { |
| dev_err(dev, "get interrupt resource failed.\n"); |
| ret = -ENXIO; |
| goto fail_regs; |
| } |
| |
| ret = request_irq(res->start, hdmi_irq_handler, 0, "hdmi", hdmi_dev); |
| if (ret) { |
| dev_err(dev, "request interrupt failed.\n"); |
| goto fail_regs; |
| } |
| hdmi_dev->irq = res->start; |
| |
| /* setting v4l2 name to prevent WARN_ON in v4l2_device_register */ |
| strlcpy(hdmi_dev->v4l2_dev.name, dev_name(dev), |
| sizeof(hdmi_dev->v4l2_dev.name)); |
| /* passing NULL owner prevents driver from erasing drvdata */ |
| ret = v4l2_device_register(NULL, &hdmi_dev->v4l2_dev); |
| if (ret) { |
| dev_err(dev, "could not register v4l2 device.\n"); |
| goto fail_irq; |
| } |
| |
| drv_data = (struct hdmi_driver_data *) |
| platform_get_device_id(pdev)->driver_data; |
| phy_adapter = i2c_get_adapter(drv_data->hdmiphy_bus); |
| if (phy_adapter == NULL) { |
| dev_err(dev, "adapter request failed\n"); |
| ret = -ENXIO; |
| goto fail_vdev; |
| } |
| |
| hdmi_dev->phy_sd = v4l2_i2c_new_subdev_board(&hdmi_dev->v4l2_dev, |
| phy_adapter, &hdmiphy_info, NULL); |
| /* on failure or not adapter is no longer useful */ |
| i2c_put_adapter(phy_adapter); |
| if (hdmi_dev->phy_sd == NULL) { |
| dev_err(dev, "missing subdev for hdmiphy\n"); |
| ret = -ENODEV; |
| goto fail_vdev; |
| } |
| |
| clk_enable(hdmi_dev->res.hdmi); |
| |
| pm_runtime_enable(dev); |
| |
| sd = &hdmi_dev->sd; |
| v4l2_subdev_init(sd, &hdmi_sd_ops); |
| sd->owner = THIS_MODULE; |
| |
| strlcpy(sd->name, "s5p-hdmi", sizeof sd->name); |
| hdmi_dev->cur_preset = HDMI_DEFAULT_PRESET; |
| /* FIXME: missing fail preset is not supported */ |
| hdmi_dev->cur_conf = hdmi_preset2conf(hdmi_dev->cur_preset); |
| |
| /* storing subdev for call that have only access to struct device */ |
| dev_set_drvdata(dev, sd); |
| |
| dev_info(dev, "probe sucessful\n"); |
| |
| return 0; |
| |
| fail_vdev: |
| v4l2_device_unregister(&hdmi_dev->v4l2_dev); |
| |
| fail_irq: |
| free_irq(hdmi_dev->irq, hdmi_dev); |
| |
| fail_regs: |
| iounmap(hdmi_dev->regs); |
| |
| fail_init: |
| hdmi_resources_cleanup(hdmi_dev); |
| |
| fail_hdev: |
| kfree(hdmi_dev); |
| |
| fail: |
| dev_err(dev, "probe failed\n"); |
| return ret; |
| } |
| |
| static int __devexit hdmi_remove(struct platform_device *pdev) |
| { |
| struct device *dev = &pdev->dev; |
| struct v4l2_subdev *sd = dev_get_drvdata(dev); |
| struct hdmi_device *hdmi_dev = sd_to_hdmi_dev(sd); |
| |
| pm_runtime_disable(dev); |
| clk_disable(hdmi_dev->res.hdmi); |
| v4l2_device_unregister(&hdmi_dev->v4l2_dev); |
| disable_irq(hdmi_dev->irq); |
| free_irq(hdmi_dev->irq, hdmi_dev); |
| iounmap(hdmi_dev->regs); |
| hdmi_resources_cleanup(hdmi_dev); |
| kfree(hdmi_dev); |
| dev_info(dev, "remove sucessful\n"); |
| |
| return 0; |
| } |
| |
| static struct platform_driver hdmi_driver __refdata = { |
| .probe = hdmi_probe, |
| .remove = __devexit_p(hdmi_remove), |
| .id_table = hdmi_driver_types, |
| .driver = { |
| .name = "s5p-hdmi", |
| .owner = THIS_MODULE, |
| .pm = &hdmi_pm_ops, |
| } |
| }; |
| |
| /* D R I V E R I N I T I A L I Z A T I O N */ |
| |
| static int __init hdmi_init(void) |
| { |
| int ret; |
| static const char banner[] __initdata = KERN_INFO \ |
| "Samsung HDMI output driver, " |
| "(c) 2010-2011 Samsung Electronics Co., Ltd.\n"; |
| printk(banner); |
| |
| ret = platform_driver_register(&hdmi_driver); |
| if (ret) |
| printk(KERN_ERR "HDMI platform driver register failed\n"); |
| |
| return ret; |
| } |
| module_init(hdmi_init); |
| |
| static void __exit hdmi_exit(void) |
| { |
| platform_driver_unregister(&hdmi_driver); |
| } |
| module_exit(hdmi_exit); |
| |
| |
