--- /dev/null
+/*
+ * 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);
+
+
--- /dev/null
+/*
+ * Samsung HDMI Physical interface driver
+ *
+ * Copyright (C) 2010-2011 Samsung Electronics Co.Ltd
+ * Author: 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 Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/err.h>
+
+#include <media/v4l2-subdev.h>
+
+MODULE_AUTHOR("Tomasz Stanislawski <t.stanislaws@samsung.com>");
+MODULE_DESCRIPTION("Samsung HDMI Physical interface driver");
+MODULE_LICENSE("GPL");
+
+struct hdmiphy_conf {
+ u32 preset;
+ const u8 *data;
+};
+
+static const u8 hdmiphy_conf27[32] = {
+ 0x01, 0x05, 0x00, 0xD8, 0x10, 0x1C, 0x30, 0x40,
+ 0x6B, 0x10, 0x02, 0x51, 0xDf, 0xF2, 0x54, 0x87,
+ 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+ 0x22, 0x40, 0xe3, 0x26, 0x00, 0x00, 0x00, 0x00,
+};
+
+static const u8 hdmiphy_conf74_175[32] = {
+ 0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xef, 0x5B,
+ 0x6D, 0x10, 0x01, 0x51, 0xef, 0xF3, 0x54, 0xb9,
+ 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+ 0x22, 0x40, 0xa5, 0x26, 0x01, 0x00, 0x00, 0x00,
+};
+
+static const u8 hdmiphy_conf74_25[32] = {
+ 0x01, 0x05, 0x00, 0xd8, 0x10, 0x9c, 0xf8, 0x40,
+ 0x6a, 0x10, 0x01, 0x51, 0xff, 0xf1, 0x54, 0xba,
+ 0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xe0,
+ 0x22, 0x40, 0xa4, 0x26, 0x01, 0x00, 0x00, 0x00,
+};
+
+static const u8 hdmiphy_conf148_5[32] = {
+ 0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xf8, 0x40,
+ 0x6A, 0x18, 0x00, 0x51, 0xff, 0xF1, 0x54, 0xba,
+ 0x84, 0x00, 0x10, 0x38, 0x00, 0x08, 0x10, 0xE0,
+ 0x22, 0x40, 0xa4, 0x26, 0x02, 0x00, 0x00, 0x00,
+};
+
+static const struct hdmiphy_conf hdmiphy_conf[] = {
+ { V4L2_DV_480P59_94, hdmiphy_conf27 },
+ { V4L2_DV_1080P30, hdmiphy_conf74_175 },
+ { V4L2_DV_720P59_94, hdmiphy_conf74_175 },
+ { V4L2_DV_720P60, hdmiphy_conf74_25 },
+ { V4L2_DV_1080P50, hdmiphy_conf148_5 },
+ { V4L2_DV_1080P60, hdmiphy_conf148_5 },
+};
+
+const u8 *hdmiphy_preset2conf(u32 preset)
+{
+ int i;
+ for (i = 0; i < ARRAY_SIZE(hdmiphy_conf); ++i)
+ if (hdmiphy_conf[i].preset == preset)
+ return hdmiphy_conf[i].data;
+ return NULL;
+}
+
+static int hdmiphy_s_power(struct v4l2_subdev *sd, int on)
+{
+ /* to be implemented */
+ return 0;
+}
+
+static int hdmiphy_s_dv_preset(struct v4l2_subdev *sd,
+ struct v4l2_dv_preset *preset)
+{
+ const u8 *data;
+ u8 buffer[32];
+ int ret;
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct device *dev = &client->dev;
+
+ dev_info(dev, "s_dv_preset(preset = %d)\n", preset->preset);
+ data = hdmiphy_preset2conf(preset->preset);
+ if (!data) {
+ dev_err(dev, "format not supported\n");
+ return -EINVAL;
+ }
+
+ /* storing configuration to the device */
+ memcpy(buffer, data, 32);
+ ret = i2c_master_send(client, buffer, 32);
+ if (ret != 32) {
+ dev_err(dev, "failed to configure HDMIPHY via I2C\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int hdmiphy_s_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct device *dev = &client->dev;
+ u8 buffer[2];
+ int ret;
+
+ dev_info(dev, "s_stream(%d)\n", enable);
+ /* going to/from configuration from/to operation mode */
+ buffer[0] = 0x1f;
+ buffer[1] = enable ? 0x80 : 0x00;
+
+ ret = i2c_master_send(client, buffer, 2);
+ if (ret != 2) {
+ dev_err(dev, "stream (%d) failed\n", enable);
+ return -EIO;
+ }
+ return 0;
+}
+
+static const struct v4l2_subdev_core_ops hdmiphy_core_ops = {
+ .s_power = hdmiphy_s_power,
+};
+
+static const struct v4l2_subdev_video_ops hdmiphy_video_ops = {
+ .s_dv_preset = hdmiphy_s_dv_preset,
+ .s_stream = hdmiphy_s_stream,
+};
+
+static const struct v4l2_subdev_ops hdmiphy_ops = {
+ .core = &hdmiphy_core_ops,
+ .video = &hdmiphy_video_ops,
+};
+
+static int __devinit hdmiphy_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ static struct v4l2_subdev sd;
+
+ v4l2_i2c_subdev_init(&sd, client, &hdmiphy_ops);
+ dev_info(&client->dev, "probe successful\n");
+ return 0;
+}
+
+static int __devexit hdmiphy_remove(struct i2c_client *client)
+{
+ dev_info(&client->dev, "remove successful\n");
+ return 0;
+}
+
+static const struct i2c_device_id hdmiphy_id[] = {
+ { "hdmiphy", 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, hdmiphy_id);
+
+static struct i2c_driver hdmiphy_driver = {
+ .driver = {
+ .name = "s5p-hdmiphy",
+ .owner = THIS_MODULE,
+ },
+ .probe = hdmiphy_probe,
+ .remove = __devexit_p(hdmiphy_remove),
+ .id_table = hdmiphy_id,
+};
+
+static int __init hdmiphy_init(void)
+{
+ return i2c_add_driver(&hdmiphy_driver);
+}
+module_init(hdmiphy_init);
+
+static void __exit hdmiphy_exit(void)
+{
+ i2c_del_driver(&hdmiphy_driver);
+}
+module_exit(hdmiphy_exit);
projects / linux-beck.git / commitdiff