Adding the hdmi interface driver(hdmi.c) to the dss driver.
It configures the audio and video portion of HDMI based on
functionality called by the panel driver.
Signed-off-by: Mythri P K <mythripk@xxxxxx>
Yong Zhi <y-zhi@xxxxxx>
---
drivers/video/omap2/dss/display.c | 3 +
drivers/video/omap2/dss/dss.h | 34 +
drivers/video/omap2/dss/hdmi.c | 1332 +++++++++++++++++++++++++++++++++++++
3 files changed, 1369 insertions(+), 0 deletions(-)
create mode 100644 drivers/video/omap2/dss/hdmi.c
diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
index c40bcbd..a85a6f3 100644
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -418,6 +418,9 @@ void dss_init_device(struct platform_device *pdev,
r = dsi_init_display(dssdev);
break;
#endif
+ case OMAP_DISPLAY_TYPE_HDMI:
+ r = hdmi_init_display(dssdev);
+ break;
default:
DSSERR("Support for display '%s' not compiled in.\n",
dssdev->name);
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 9f563a6..6bf923c 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -179,6 +179,16 @@ struct dsi_clock_info {
bool use_sys_clk;
};
+/* HDMI PLL structure */
+struct hdmi_pll_info {
+ u16 regn;
+ u16 regm;
+ u32 regmf;
+ u16 regm2;
+ u16 regsd;
+ u16 dcofreq;
+};
+
struct seq_file;
struct platform_device;
@@ -450,6 +460,30 @@ static inline void venc_uninit_platform_driver(void)
}
#endif
+/* HDMI */
+#ifdef CONFIG_OMAP4_DSS_HDMI
+int hdmi_init_platform_driver(void);
+void hdmi_uninit_platform_driver(void);
+int hdmi_init_display(struct omap_dss_device *dssdev);
+#else
+static inline int hdmi_init_display(struct omap_dss_device *dssdev)
+{
+ return 0;
+}
+static inline int hdmi_init_platform_driver(void)
+{
+ return 0;
+}
+static inline void hdmi_uninit_platform_driver(void)
+{
+}
+#endif
+int omapdss_hdmi_display_enable(struct omap_dss_device *dssdev);
+void omapdss_hdmi_display_disable(struct omap_dss_device *dssdev);
+void omapdss_hdmi_display_set_timing(struct omap_dss_device *dssdev);
+int omapdss_hdmi_display_check_timing(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings);
+
/* RFBI */
#ifdef CONFIG_OMAP2_DSS_RFBI
int rfbi_init_platform_driver(void);
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
new file mode 100644
index 0000000..e0e2cbb
--- /dev/null
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -0,0 +1,1332 @@
+/*
+ * hdmi.c
+ *
+ * HDMI interface DSS driver setting for TI's OMAP4 family of processor.
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Authors: Yong Zhi
+ * Mythri pk <mythripk@xxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "HDMI"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <plat/display.h>
+
+#include "dss.h"
+#include "hdmi.h"
+
+static struct {
+ struct mutex lock;
+ struct omap_display_platform_data *pdata;
+ struct platform_device *pdev;
+ void __iomem *base_wp; /* HDMI wrapper */
+ int code;
+ int mode;
+ u8 edid[HDMI_EDID_MAX_LENGTH];
+ u8 edid_set;
+ bool custom_set;
+ struct hdmi_config cfg;
+} hdmi;
+
+/*
+ * Logic for the below structure :
+ * user enters the CEA or VESA timings by specifying the HDMI/DVI code.
+ * There is a correspondence between CEA/VESA timing and code , Please
+ * refer to section 6.3 in HDMI 1.3 specification for timing code.
+ * In the below structure, cea_vesa_timings corresponds to all OMAP4
+ * supported CEA and VESA timing values.
+ * code_cea corresponds to the CEA code , It is used to get the timing
+ * from cea_vesa_timing array. Similarly with code_vesa.
+ * code_index is used for back mapping, That is once EDID is read from
+ * the TV, EDID is parsed to find the timing values and then map it to
+ * corresponding CEA or VESA index.
+ */
+
+static const struct hdmi_timings cea_vesa_timings[OMAP_HDMI_TIMINGS_NB] = {
+ { {640, 480, 25200, 96, 16, 48, 2, 10, 33} , 0 , 0},
+ { {1280, 720, 74250, 40, 440, 220, 5, 5, 20}, 1, 1},
+ { {1280, 720, 74250, 40, 110, 220, 5, 5, 20}, 1, 1},
+ { {720, 480, 27027, 62, 16, 60, 6, 9, 30}, 0, 0},
+ { {2880, 576, 108000, 256, 48, 272, 5, 5, 39}, 0, 0},
+ { {1440, 240, 27027, 124, 38, 114, 3, 4, 15}, 0, 0},
+ { {1440, 288, 27000, 126, 24, 138, 3, 2, 19}, 0, 0},
+ { {1920, 540, 74250, 44, 528, 148, 5, 2, 15}, 1, 1},
+ { {1920, 540, 74250, 44, 88, 148, 5, 2, 15}, 1, 1},
+ { {1920, 1080, 148500, 44, 88, 148, 5, 4, 36}, 1, 1},
+ { {720, 576, 27000, 64, 12, 68, 5, 5, 39}, 0, 0},
+ { {1440, 576, 54000, 128, 24, 136, 5, 5, 39}, 0, 0},
+ { {1920, 1080, 148500, 44, 528, 148, 5, 4, 36}, 1, 1},
+ { {2880, 480, 108108, 248, 64, 240, 6, 9, 30}, 0, 0},
+ { {1920, 1080, 74250, 44, 638, 148, 5, 4, 36}, 1, 1},
+ /* VESA From Here */
+ { {640, 480, 25175, 96, 16, 48, 2 , 11, 31}, 0, 0},
+ { {800, 600, 40000, 128, 40, 88, 4 , 1, 23}, 1, 1},
+ { {848, 480, 33750, 112, 16, 112, 8 , 6, 23}, 1, 1},
+ { {1280, 768, 79500, 128, 64, 192, 7 , 3, 20}, 1, 0},
+ { {1280, 800, 83500, 128, 72, 200, 6 , 3, 22}, 1, 0},
+ { {1360, 768, 85500, 112, 64, 256, 6 , 3, 18}, 1, 1},
+ { {1280, 960, 108000, 112, 96, 312, 3 , 1, 36}, 1, 1},
+ { {1280, 1024, 108000, 112, 48, 248, 3 , 1, 38}, 1, 1},
+ { {1024, 768, 65000, 136, 24, 160, 6, 3, 29}, 0, 0},
+ { {1400, 1050, 121750, 144, 88, 232, 4, 3, 32}, 1, 0},
+ { {1440, 900, 106500, 152, 80, 232, 6, 3, 25}, 1, 0},
+ { {1680, 1050, 146250, 176 , 104, 280, 6, 3, 30}, 1, 0},
+ { {1366, 768, 85500, 143, 70, 213, 3, 3, 24}, 1, 1},
+ { {1920, 1080, 148500, 44, 148, 80, 5, 4, 36}, 1, 1},
+ { {1280, 768, 68250, 32, 48, 80, 7, 3, 12}, 0, 1},
+ { {1400, 1050, 101000, 32, 48, 80, 4, 3, 23}, 0, 1},
+ { {1680, 1050, 119000, 32, 48, 80, 6, 3, 21}, 0, 1},
+ { {1280, 800, 79500, 32, 48, 80, 6, 3, 14}, 0, 1},
+ { {1280, 720, 74250, 40, 110, 220, 5, 5, 20}, 1, 1}
+};
+
+/*
+ * This is a static mapping array which maps the timing values
+ * with corresponding CEA / VESA code
+ */
+static const int code_index[OMAP_HDMI_TIMINGS_NB] = {
+ 1, 19, 4, 2, 37, 6, 21, 20, 5, 16, 17, 29, 31, 35, 32,
+ /* <--15 CEA 17--> vesa*/
+ 4, 9, 0xE, 0x17, 0x1C, 0x27, 0x20, 0x23, 0x10, 0x2A,
+ 0X2F, 0x3A, 0X51, 0X52, 0x16, 0x29, 0x39, 0x1B
+};
+
+/*
+ * This is reverse static mapping which maps the CEA / VESA code
+ * to the corresponding timing values
+ */
+static const int code_cea[39] = {
+ -1, 0, 3, 3, 2, 8, 5, 5, -1, -1,
+ -1, -1, -1, -1, -1, -1, 9, 10, 10, 1,
+ 7, 6, 6, -1, -1, -1, -1, -1, -1, 11,
+ 11, 12, 14, -1, -1, 13, 13, 4, 4
+};
+
+static const int code_vesa[85] = {
+ -1, -1, -1, -1, 15, -1, -1, -1, -1, 16,
+ -1, -1, -1, -1, 17, -1, 23, -1, -1, -1,
+ -1, -1, 29, 18, -1, -1, -1, 32, 19, -1,
+ -1, -1, 21, -1, -1, 22, -1, -1, -1, 20,
+ -1, 30, 24, -1, -1, -1, -1, 25, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, 31, 26, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, 27, 28, -1, 33};
+
+static const u8 edid_header[8] = {0x0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0};
+
+static inline void hdmi_write_reg(const struct hdmi_reg idx, u32 val)
+{
+ __raw_writel(val, hdmi.base_wp + idx.idx);
+}
+
+static inline u32 hdmi_read_reg(const struct hdmi_reg idx)
+{
+ return __raw_readl(hdmi.base_wp + idx.idx);
+}
+
+static inline int hdmi_wait_for_bit_change(const struct hdmi_reg idx,
+ int b2, int b1, u32 val)
+{
+ u32 t = 0;
+ while (val != REG_GET(idx, b2, b1)) {
+ udelay(1);
+ if (t++ > 10000)
+ return !val;
+ }
+ return val;
+}
+
+int hdmi_init_display(struct omap_dss_device *dssdev)
+{
+ DSSDBG("init_display\n");
+
+ return 0;
+}
+
+static int hdmi_pll_init(enum hdmi_clk_refsel refsel, int dcofreq,
+ struct hdmi_pll_info *fmt, u16 sd)
+{
+ u32 r;
+
+ /* PLL start always use manual mode */
+ REG_FLD_MOD(PLLCTRL_PLL_CONTROL, 0x0, 0, 0);
+
+ r = hdmi_read_reg(PLLCTRL_CFG1);
+ r = FLD_MOD(r, fmt->regm, 20, 9); /* CFG1_PLL_REGM */
+ r = FLD_MOD(r, fmt->regn, 8, 1); /* CFG1_PLL_REGN */
+
+ hdmi_write_reg(PLLCTRL_CFG1, r);
+
+ r = hdmi_read_reg(PLLCTRL_CFG2);
+
+ r = FLD_MOD(r, 0x0, 12, 12); /* PLL_HIGHFREQ divide by 2 */
+ r = FLD_MOD(r, 0x1, 13, 13); /* PLL_REFEN */
+ r = FLD_MOD(r, 0x0, 14, 14); /* PHY_CLKINEN de-assert during locking */
+
+ if (dcofreq) {
+ /* divider programming for frequency beyond 1000Mhz */
+ REG_FLD_MOD(PLLCTRL_CFG3, sd, 17, 10);
+ r = FLD_MOD(r, 0x4, 3, 1); /* 1000MHz and 2000MHz */
+ } else {
+ r = FLD_MOD(r, 0x2, 3, 1); /* 500MHz and 1000MHz */
+ }
+
+ hdmi_write_reg(PLLCTRL_CFG2, r);
+
+ r = hdmi_read_reg(PLLCTRL_CFG4);
+ r = FLD_MOD(r, fmt->regm2, 24, 18);
+ r = FLD_MOD(r, fmt->regmf, 17, 0);
+
+ hdmi_write_reg(PLLCTRL_CFG4, r);
+
+ /* go now */
+ REG_FLD_MOD(PLLCTRL_PLL_GO, 0x1, 0, 0);
+
+ /* wait for bit change */
+ if (hdmi_wait_for_bit_change(PLLCTRL_PLL_GO, 0, 0, 1) != 1) {
+ DSSERR("PLL GO bit not set\n");
+ return -ETIMEDOUT;
+ }
+
+ /* Wait till the lock bit is set in PLL status */
+ if (hdmi_wait_for_bit_change(PLLCTRL_PLL_STATUS, 1, 1, 1) != 1) {
+ DSSWARN("cannot lock PLL\n");
+ DSSWARN("CFG1 0x%x\n",
+ hdmi_read_reg(PLLCTRL_CFG1));
+ DSSWARN("CFG2 0x%x\n",
+ hdmi_read_reg(PLLCTRL_CFG2));
+ DSSWARN("CFG4 0x%x\n",
+ hdmi_read_reg(PLLCTRL_CFG4));
+ return -ETIMEDOUT;
+ }
+
+ DSSDBG("PLL locked!\n");
+
+ return 0;
+}
+
+/* PHY_PWR_CMD */
+static int hdmi_set_phy_pwr(enum hdmi_phy_pwr val)
+{
+ /* Command for power control of HDMI PHY */
+ REG_FLD_MOD(HDMI_WP_PWR_CTRL, val, 7, 6);
+
+ /* Status of the power control of HDMI PHY */
+ if (hdmi_wait_for_bit_change(HDMI_WP_PWR_CTRL, 5, 4, val) != val) {
+ DSSERR("Failed to set PHY power mode to %d\n", val);
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+/* PLL_PWR_CMD */
+static int hdmi_set_pll_pwr(enum hdmi_pll_pwr val)
+{
+ /* Command for power control of HDMI PLL */
+ REG_FLD_MOD(HDMI_WP_PWR_CTRL, val, 3, 2);
+
+ /* wait till PHY_PWR_STATUS is set */
+ if (hdmi_wait_for_bit_change(HDMI_WP_PWR_CTRL, 1, 0, val) != val) {
+ DSSERR("Failed to set PHY_PWR_STATUS\n");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static int hdmi_pll_reset(void)
+{
+ /* SYSRESET controlled by power FSM */
+ REG_FLD_MOD(PLLCTRL_PLL_CONTROL, 0x0, 3, 3);
+
+ /* READ 0x0 reset is in progress */
+ if (hdmi_wait_for_bit_change(PLLCTRL_PLL_STATUS, 0, 0, 1) != 1) {
+ DSSERR("Failed to sysreset PLL\n");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static int hdmi_phy_init(void)
+{
+ u16 r = 0;
+
+ r = hdmi_set_phy_pwr(HDMI_PHYPWRCMD_LDOON);
+ if (r)
+ return r;
+
+ r = hdmi_set_phy_pwr(HDMI_PHYPWRCMD_TXON);
+ if (r)
+ return r;
+
+ /*
+ * Read address 0 in order to get the SCP reset done completed
+ * Dummy access performed to make sure reset is done
+ */
+ hdmi_read_reg(HDMI_TXPHY_TX_CTRL);
+
+ /*
+ * Write to phy address 0 to configure the clock
+ * use HFBITCLK write HDMI_TXPHY_TX_CONTROL_FREQOUT field
+ */
+ REG_FLD_MOD(HDMI_TXPHY_TX_CTRL, 0x1, 31, 30);
+
+ /* Write to phy address 1 to start HDMI line (TXVALID and TMDSCLKEN) */
+ hdmi_write_reg(HDMI_TXPHY_DIGITAL_CTRL, 0xF0000000);
+
+ /* Setup max LDO voltage */
+ REG_FLD_MOD(HDMI_TXPHY_POWER_CTRL, 0xB, 3, 0);
+
+ /* Write to phy address 3 to change the polarity control */
+ REG_FLD_MOD(HDMI_TXPHY_PAD_CFG_CTRL, 0x1, 27, 27);
+
+ return 0;
+}
+
+static int hdmi_wait_softreset(void)
+{
+ /* reset W1 */
+ REG_FLD_MOD(HDMI_WP_SYSCONFIG, 0x1, 0, 0);
+
+ /* wait till SOFTRESET == 0 */
+ if (hdmi_wait_for_bit_change(HDMI_WP_SYSCONFIG, 0, 0, 0) != 0) {
+ DSSERR("sysconfig reset failed\n");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static int hdmi_pll_program(struct hdmi_pll_info *fmt)
+{
+ u16 r = 0;
+ enum hdmi_clk_refsel refsel;
+
+ /* wait for wrapper reset */
+ r = hdmi_wait_softreset();
+ if (r)
+ return r;
+
+ r = hdmi_set_pll_pwr(HDMI_PLLPWRCMD_ALLOFF);
+ if (r)
+ return r;
+
+ r = hdmi_set_pll_pwr(HDMI_PLLPWRCMD_BOTHON_ALLCLKS);
+ if (r)
+ return r;
+
+ r = hdmi_pll_reset();
+ if (r)
+ return r;
+
+ refsel = HDMI_REFSEL_SYSCLK;
+
+ r = hdmi_pll_init(refsel, fmt->dcofreq, fmt, fmt->regsd);
+ if (r)
+ return r;
+
+ return 0;
+}
+
+static void hdmi_phy_off(void)
+{
+ hdmi_set_phy_pwr(HDMI_PHYPWRCMD_OFF);
+}
+
+static int hdmi_core_ddc_edid(u8 *pedid, int ext)
+{
+ u32 i, j;
+ char checksum = 0;
+ u32 offset = 0;
+
+ /* Turn on CLK for DDC */
+ REG_FLD_MOD(HDMI_CORE_AV_DPD, 0x7, 2, 0);
+
+ /*
+ * SW HACK : Without the Delay DDC(i2c bus) reads 0 values /
+ * right shifted values( The behavior is not consistent and seen only
+ * with some TV's)
+ */
+ usleep_range(800, 1000);
+
+ if (!ext) {
+ /* Clk SCL Devices */
+ REG_FLD_MOD(HDMI_CORE_DDC_CMD, 0xA, 3, 0);
+
+ /* HDMI_CORE_DDC_STATUS_IN_PROG */
+ if (hdmi_wait_for_bit_change(HDMI_CORE_DDC_STATUS,
+ 4, 4, 0) != 0) {
+ DSSERR("Failed to program DDC\n");
+ return -ETIMEDOUT;
+ }
+
+ /* Clear FIFO */
+ REG_FLD_MOD(HDMI_CORE_DDC_CMD, 0x9, 3, 0);
+
+ /* HDMI_CORE_DDC_STATUS_IN_PROG */
+ if (hdmi_wait_for_bit_change(HDMI_CORE_DDC_STATUS,
+ 4, 4, 0) != 0) {
+ DSSERR("Failed to program DDC\n");
+ return -ETIMEDOUT;
+ }
+
+ } else {
+ if (ext % 2 != 0)
+ offset = 0x80;
+ }
+
+ /* Load Segment Address Register */
+ REG_FLD_MOD(HDMI_CORE_DDC_SEGM, ext/2, 7, 0);
+
+ /* Load Slave Address Register */
+ REG_FLD_MOD(HDMI_CORE_DDC_ADDR, 0xA0 >> 1, 7, 1);
+
+ /* Load Offset Address Register */
+ REG_FLD_MOD(HDMI_CORE_DDC_OFFSET, offset, 7, 0);
+
+ /* Load Byte Count */
+ REG_FLD_MOD(HDMI_CORE_DDC_COUNT1, 0x80, 7, 0);
+ REG_FLD_MOD(HDMI_CORE_DDC_COUNT2, 0x0, 1, 0);
+
+ /* Set DDC_CMD */
+ if (ext)
+ REG_FLD_MOD(HDMI_CORE_DDC_CMD, 0x4, 3, 0);
+ else
+ REG_FLD_MOD(HDMI_CORE_DDC_CMD, 0x2, 3, 0);
+
+ /* HDMI_CORE_DDC_STATUS_BUS_LOW */
+ if (REG_GET(HDMI_CORE_DDC_STATUS, 6, 6) == 1) {
+ DSSWARN("I2C Bus Low?\n");
+ return -EIO;
+ }
+ /* HDMI_CORE_DDC_STATUS_NO_ACK */
+ if (REG_GET(HDMI_CORE_DDC_STATUS, 5, 5) == 1) {
+ DSSWARN("I2C No Ack\n");
+ return -EIO;
+ }
+
+ i = ext * 128;
+ j = 0;
+ while (((REG_GET(HDMI_CORE_DDC_STATUS, 4, 4) == 1) ||
+ (REG_GET(HDMI_CORE_DDC_STATUS, 2, 2) == 0)) &&
+ j < 128) {
+
+ if (REG_GET(HDMI_CORE_DDC_STATUS, 2, 2) == 0) {
+ /* FIFO not empty */
+ pedid[i++] = REG_GET(HDMI_CORE_DDC_DATA, 7, 0);
+ j++;
+ }
+ }
+
+ for (j = 0; j < 128; j++)
+ checksum += pedid[j];
+
+ if (checksum != 0) {
+ DSSERR("E-EDID checksum failed!!\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int read_edid(u8 *pedid, u16 max_length)
+{
+ int r = 0, n = 0, i = 0;
+ int max_ext_blocks = (max_length / 128) - 1;
+
+ r = hdmi_core_ddc_edid(pedid, 0);
+ if (r) {
+ return r;
+ } else {
+ n = pedid[0x7e];
+
+ /*
+ * README: need to comply with max_length set by the caller.
+ * Better implementation should be to allocate necessary
+ * memory to store EDID according to nb_block field found
+ * in first block
+ */
+ if (n > max_ext_blocks)
+ n = max_ext_blocks;
+
+ for (i = 1; i <= n; i++) {
+ r = hdmi_core_ddc_edid(pedid, i);
+ if (r)
+ return r;
+ }
+ }
+ return 0;
+}
+
+static int get_timings_index(void)
+{
+ int code;
+
+ if (hdmi.mode == 0)
+ code = code_vesa[hdmi.code];
+ else
+ code = code_cea[hdmi.code];
+
+ if (code == -1) {
+ /* HDMI code 4 corresponds to 640 * 480 VGA */
+ hdmi.code = 4;
+ /* DVI mode 1 corresponds to HDMI 0 to DVI */
+ hdmi.mode = HDMI_DVI;
+
+ code = code_vesa[hdmi.code];
+ }
+ return code;
+}
+
+static struct hdmi_cm hdmi_get_code(struct omap_video_timings *timing)
+{
+ int i = 0, code = -1, temp_vsync = 0, temp_hsync = 0;
+ int timing_vsync = 0, timing_hsync = 0;
+ struct omap_video_timings temp;
+ struct hdmi_cm cm = {-1};
+ DSSDBG("hdmi_get_code\n");
+
+ for (i = 0; i < OMAP_HDMI_TIMINGS_NB; i++) {
+ temp = cea_vesa_timings[i].timings;
+ if ((temp.pixel_clock == timing->pixel_clock) &&
+ (temp.x_res == timing->x_res) &&
+ (temp.y_res == timing->y_res)) {
+
+ temp_hsync = temp.hfp + temp.hsw + temp.hbp;
+ timing_hsync = timing->hfp + timing->hsw + timing->hbp;
+ temp_vsync = temp.vfp + temp.vsw + temp.vbp;
+ timing_vsync = timing->vfp + timing->vsw + timing->vbp;
+
+ DSSDBG("temp_hsync = %d , temp_vsync = %d"
+ "timing_hsync = %d, timing_vsync = %d\n",
+ temp_hsync, temp_hsync,
+ timing_hsync, timing_vsync);
+
+ if ((temp_hsync == timing_hsync) &&
+ (temp_vsync == timing_vsync)) {
+ code = i;
+ cm.code = code_index[i];
+ if (code < 14)
+ cm.mode = HDMI_HDMI;
+ else
+ cm.mode = HDMI_DVI;
+ DSSDBG("Hdmi_code = %d mode = %d\n",
+ cm.code, cm.mode);
+ break;
+ }
+ }
+ }
+
+ return cm;
+}
+
+static void get_horz_vert_timing_info(int current_descriptor_addrs, u8 *edid ,
+ struct omap_video_timings *timings)
+{
+ /* X and Y resolution */
+ timings->x_res = (((edid[current_descriptor_addrs + 4] & 0xF0) << 4) |
+ edid[current_descriptor_addrs + 2]);
+ timings->y_res = (((edid[current_descriptor_addrs + 7] & 0xF0) << 4) |
+ edid[current_descriptor_addrs + 5]);
+
+ timings->pixel_clock = ((edid[current_descriptor_addrs + 1] << 8) |
+ edid[current_descriptor_addrs]);
+
+ timings->pixel_clock = 10 * timings->pixel_clock;
+
+ /* HORIZONTAL FRONT PORCH */
+ timings->hfp = edid[current_descriptor_addrs + 8] |
+ ((edid[current_descriptor_addrs + 11] & 0xc0) << 2);
+ /* HORIZONTAL SYNC WIDTH */
+ timings->hsw = edid[current_descriptor_addrs + 9] |
+ ((edid[current_descriptor_addrs + 11] & 0x30) << 4);
+ /* HORIZONTAL BACK PORCH */
+ timings->hbp = (((edid[current_descriptor_addrs + 4] & 0x0F) << 8) |
+ edid[current_descriptor_addrs + 3]) -
+ (timings->hfp + timings->hsw);
+ /* VERTICAL FRONT PORCH */
+ timings->vfp = ((edid[current_descriptor_addrs + 10] & 0xF0) >> 4) |
+ ((edid[current_descriptor_addrs + 11] & 0x0f) << 2);
+ /* VERTICAL SYNC WIDTH */
+ timings->vsw = (edid[current_descriptor_addrs + 10] & 0x0F) |
+ ((edid[current_descriptor_addrs + 11] & 0x03) << 4);
+ /* VERTICAL BACK PORCH */
+ timings->vbp = (((edid[current_descriptor_addrs + 7] & 0x0F) << 8) |
+ edid[current_descriptor_addrs + 6]) -
+ (timings->vfp + timings->vsw);
+
+}
+
+/* Description : This function gets the resolution information from EDID */
+static void get_edid_timing_data(u8 *edid)
+{
+ u8 count;
+ u16 current_descriptor_addrs;
+ struct hdmi_cm cm;
+ struct omap_video_timings edid_timings;
+
+ /* seach block 0, there are 4 DTDs arranged in priority order */
+ for (count = 0; count < EDID_SIZE_BLOCK0_TIMING_DESCRIPTOR; count++) {
+ current_descriptor_addrs =
+ EDID_DESCRIPTOR_BLOCK0_ADDRESS +
+ count * EDID_TIMING_DESCRIPTOR_SIZE;
+ get_horz_vert_timing_info(current_descriptor_addrs,
+ edid, &edid_timings);
+ cm = hdmi_get_code(&edid_timings);
+ DSSDBG("Block0[%d] value matches code = %d , mode = %d\n",
+ count, cm.code, cm.mode);
+ if (cm.code == -1) {
+ continue;
+ } else {
+ hdmi.code = cm.code;
+ hdmi.mode = cm.mode;
+ DSSDBG("code = %d , mode = %d\n",
+ hdmi.code, hdmi.mode);
+ return;
+ }
+ }
+ if (edid[0x7e] != 0x00) {
+ for (count = 0; count < EDID_SIZE_BLOCK1_TIMING_DESCRIPTOR;
+ count++) {
+ current_descriptor_addrs =
+ EDID_DESCRIPTOR_BLOCK1_ADDRESS +
+ count * EDID_TIMING_DESCRIPTOR_SIZE;
+ get_horz_vert_timing_info(current_descriptor_addrs,
+ edid, &edid_timings);
+ cm = hdmi_get_code(&edid_timings);
+ DSSDBG("Block1[%d] value matches code = %d, mode = %d",
+ count, cm.code, cm.mode);
+ if (cm.code == -1) {
+ continue;
+ } else {
+ hdmi.code = cm.code;
+ hdmi.mode = cm.mode;
+ DSSDBG("code = %d , mode = %d\n",
+ hdmi.code, hdmi.mode);
+ return;
+ }
+ }
+ }
+
+ DSSINFO("no valid timing found , falling back to VGA\n");
+ hdmi.code = 4; /* setting default value of 640 480 VGA */
+ hdmi.mode = HDMI_DVI;
+}
+
+static void hdmi_read_edid(struct omap_video_timings *dp)
+{
+ int ret = 0, code;
+
+ memset(hdmi.edid, 0, HDMI_EDID_MAX_LENGTH);
+
+ if (!hdmi.edid_set)
+ ret = read_edid(hdmi.edid, HDMI_EDID_MAX_LENGTH);
+
+ if (!ret) {
+ if (!memcmp(hdmi.edid, edid_header, sizeof(edid_header))) {
+ /* search for timings of default resolution */
+ get_edid_timing_data(hdmi.edid);
+ hdmi.edid_set = true;
+ }
+ } else {
+ DSSWARN("failed to read E-EDID\n");
+ }
+
+ if (!hdmi.edid_set) {
+ DSSINFO("fallback to VGA\n");
+ hdmi.code = 4; /* setting default value of 640 480 VGA */
+ hdmi.mode = HDMI_DVI;
+ }
+
+ code = get_timings_index();
+
+ *dp = cea_vesa_timings[code].timings;
+}
+
+static void hdmi_core_init(struct hdmi_core_video_config *video_cfg,
+ struct hdmi_core_infoframe_avi *avi_cfg,
+ struct hdmi_core_packet_enable_repeat *repeat_cfg)
+{
+ DSSDBG("Enter hdmi_core_init\n");
+
+ /* video core */
+ video_cfg->ip_bus_width = HDMI_INPUT_8BIT;
+ video_cfg->op_dither_truc = HDMI_OUTPUTTRUNCATION_8BIT;
+ video_cfg->deep_color_pkt = HDMI_DEEPCOLORPACKECTDISABLE;
+ video_cfg->pkt_mode = HDMI_PACKETMODERESERVEDVALUE;
+ video_cfg->hdmi_dvi = HDMI_DVI;
+ video_cfg->tclk_sel_clkmult = HDMI_FPLL10IDCK;
+
+ /* info frame */
+ avi_cfg->db1_format = 0;
+ avi_cfg->db1_active_info = 0;
+ avi_cfg->db1_bar_info_dv = 0;
+ avi_cfg->db1_scan_info = 0;
+ avi_cfg->db2_colorimetry = 0;
+ avi_cfg->db2_aspect_ratio = 0;
+ avi_cfg->db2_active_fmt_ar = 0;
+ avi_cfg->db3_itc = 0;
+ avi_cfg->db3_ec = 0;
+ avi_cfg->db3_q_range = 0;
+ avi_cfg->db3_nup_scaling = 0;
+ avi_cfg->db4_videocode = 0;
+ avi_cfg->db5_pixel_repeat = 0;
+ avi_cfg->db6_7_line_eoftop = 0 ;
+ avi_cfg->db8_9_line_sofbottom = 0;
+ avi_cfg->db10_11_pixel_eofleft = 0;
+ avi_cfg->db12_13_pixel_sofright = 0;
+
+ /* packet enable and repeat */
+ repeat_cfg->audio_pkt = 0;
+ repeat_cfg->audio_pkt_repeat = 0;
+ repeat_cfg->avi_infoframe = 0;
+ repeat_cfg->avi_infoframe_repeat = 0;
+ repeat_cfg->gen_cntrl_pkt = 0;
+ repeat_cfg->gen_cntrl_pkt_repeat = 0;
+ repeat_cfg->generic_pkt = 0;
+ repeat_cfg->generic_pkt_repeat = 0;
+}
+
+static void hdmi_core_powerdown_disable(void)
+{
+ DSSDBG("Enter hdmi_core_powerdown_disable\n");
+ REG_FLD_MOD(HDMI_CORE_CTRL1, 0x0, 0, 0);
+}
+
+static void hdmi_core_swreset_release(void)
+{
+ DSSDBG("Enter hdmi_core_swreset_release\n");
+ REG_FLD_MOD(HDMI_CORE_SYS_SRST, 0x0, 0, 0);
+}
+
+static void hdmi_core_swreset_assert(void)
+{
+ DSSDBG("Enter hdmi_core_swreset_assert\n");
+ REG_FLD_MOD(HDMI_CORE_SYS_SRST, 0x1, 0, 0);
+}
+
+/* DSS_HDMI_CORE_VIDEO_CONFIG */
+static void hdmi_core_video_config(struct hdmi_core_video_config *cfg)
+{
+ u32 r = 0;
+
+ /* sys_ctrl1 default configuration not tunable */
+ r = hdmi_read_reg(HDMI_CORE_CTRL1);
+ r = FLD_MOD(r, HDMI_CORE_CTRL1_VEN_FOLLOWVSYNC, 5, 5);
+ r = FLD_MOD(r, HDMI_CORE_CTRL1_HEN_FOLLOWHSYNC, 4, 4);
+ r = FLD_MOD(r, HDMI_CORE_CTRL1_BSEL_24BITBUS, 2, 2);
+ r = FLD_MOD(r, HDMI_CORE_CTRL1_EDGE_RISINGEDGE, 1, 1);
+ hdmi_write_reg(HDMI_CORE_CTRL1, r);
+
+ REG_FLD_MOD(HDMI_CORE_SYS_VID_ACEN, cfg->ip_bus_width, 7, 6);
+
+ /* Vid_Mode */
+ r = hdmi_read_reg(HDMI_CORE_SYS_VID_MODE);
+
+ /* dither truncation configuration */
+ if (cfg->op_dither_truc > HDMI_OUTPUTTRUNCATION_12BIT) {
+ r = FLD_MOD(r, cfg->op_dither_truc - 3, 7, 6);
+ r = FLD_MOD(r, 1, 5, 5);
+ } else {
+ r = FLD_MOD(r, cfg->op_dither_truc, 7, 6);
+ r = FLD_MOD(r, 0, 5, 5);
+ }
+ hdmi_write_reg(HDMI_CORE_SYS_VID_MODE, r);
+
+ /* HDMI_Ctrl */
+ r = hdmi_read_reg(HDMI_CORE_AV_HDMI_CTRL);
+ r = FLD_MOD(r, cfg->deep_color_pkt, 6, 6);
+ r = FLD_MOD(r, cfg->pkt_mode, 5, 3);
+ r = FLD_MOD(r, cfg->hdmi_dvi, 0, 0);
+ hdmi_write_reg(HDMI_CORE_AV_HDMI_CTRL, r);
+
+ /* TMDS_CTRL */
+ REG_FLD_MOD(HDMI_CORE_SYS_TMDS_CTRL,
+ cfg->tclk_sel_clkmult, 6, 5);
+}
+
+static void hdmi_core_aux_infoframe_avi_config(
+ struct hdmi_core_infoframe_avi info_avi)
+{
+ u32 val;
+ char sum = 0, checksum = 0;
+
+ sum += 0x82 + 0x002 + 0x00D;
+ hdmi_write_reg(HDMI_CORE_AV_AVI_TYPE, 0x082);
+ hdmi_write_reg(HDMI_CORE_AV_AVI_VERS, 0x002);
+ hdmi_write_reg(HDMI_CORE_AV_AVI_LEN, 0x00D);
+
+ val = (info_avi.db1_format << 5) |
+ (info_avi.db1_active_info << 4) |
+ (info_avi.db1_bar_info_dv << 2) |
+ (info_avi.db1_scan_info);
+ hdmi_write_reg(HDMI_CORE_AV_AVI_DBYTE(0), val);
+ sum += val;
+
+ val = (info_avi.db2_colorimetry << 6) |
+ (info_avi.db2_aspect_ratio << 4) |
+ (info_avi.db2_active_fmt_ar);
+ hdmi_write_reg(HDMI_CORE_AV_AVI_DBYTE(1), val);
+ sum += val;
+
+ val = (info_avi.db3_itc << 7) |
+ (info_avi.db3_ec << 4) |
+ (info_avi.db3_q_range << 2) |
+ (info_avi.db3_nup_scaling);
+ hdmi_write_reg(HDMI_CORE_AV_AVI_DBYTE(2), val);
+ sum += val;
+
+ hdmi_write_reg(HDMI_CORE_AV_AVI_DBYTE(3), info_avi.db4_videocode);
+ sum += info_avi.db4_videocode;
+
+ val = info_avi.db5_pixel_repeat;
+ hdmi_write_reg(HDMI_CORE_AV_AVI_DBYTE(4), val);
+ sum += val;
+
+ val = info_avi.db6_7_line_eoftop & 0x00FF;
+ hdmi_write_reg(HDMI_CORE_AV_AVI_DBYTE(5), val);
+ sum += val;
+
+ val = ((info_avi.db6_7_line_eoftop >> 8) & 0x00FF);
+ hdmi_write_reg(HDMI_CORE_AV_AVI_DBYTE(6), val);
+ sum += val;
+
+ val = info_avi.db8_9_line_sofbottom & 0x00FF;
+ hdmi_write_reg(HDMI_CORE_AV_AVI_DBYTE(7), val);
+ sum += val;
+
+ val = ((info_avi.db8_9_line_sofbottom >> 8) & 0x00FF);
+ hdmi_write_reg(HDMI_CORE_AV_AVI_DBYTE(8), val);
+ sum += val;
+
+ val = info_avi.db10_11_pixel_eofleft & 0x00FF;
+ hdmi_write_reg(HDMI_CORE_AV_AVI_DBYTE(9), val);
+ sum += val;
+
+ val = ((info_avi.db10_11_pixel_eofleft >> 8) & 0x00FF);
+ hdmi_write_reg(HDMI_CORE_AV_AVI_DBYTE(10), val);
+ sum += val;
+
+ val = info_avi.db12_13_pixel_sofright & 0x00FF;
+ hdmi_write_reg(HDMI_CORE_AV_AVI_DBYTE(11), val);
+ sum += val;
+
+ val = ((info_avi.db12_13_pixel_sofright >> 8) & 0x00FF);
+ hdmi_write_reg(HDMI_CORE_AV_AVI_DBYTE(12), val);
+ sum += val;
+
+ checksum = 0x100 - sum;
+ hdmi_write_reg(HDMI_CORE_AV_AVI_CHSUM, checksum);
+}
+
+static void hdmi_core_av_packet_config(
+ struct hdmi_core_packet_enable_repeat repeat_cfg)
+{
+ /* enable/repeat the infoframe */
+ hdmi_write_reg(HDMI_CORE_AV_PB_CTRL1,
+ (repeat_cfg.audio_pkt << 5) |
+ (repeat_cfg.audio_pkt_repeat << 4) |
+ (repeat_cfg.avi_infoframe << 1) |
+ (repeat_cfg.avi_infoframe_repeat));
+
+ /* enable/repeat the packet */
+ hdmi_write_reg(HDMI_CORE_AV_PB_CTRL2,
+ (repeat_cfg.gen_cntrl_pkt << 3) |
+ (repeat_cfg.gen_cntrl_pkt_repeat << 2) |
+ (repeat_cfg.generic_pkt << 1) |
+ (repeat_cfg.generic_pkt_repeat));
+}
+
+static void hdmi_wp_init(struct omap_video_timings *timings,
+ struct hdmi_video_format *video_fmt,
+ struct hdmi_video_interface *video_int)
+{
+ DSSDBG("Enter hdmi_wp_init\n");
+
+ timings->hbp = 0;
+ timings->hfp = 0;
+ timings->hsw = 0;
+ timings->vbp = 0;
+ timings->vfp = 0;
+ timings->vsw = 0;
+
+ video_fmt->packing_mode = HDMI_PACK_10b_RGB_YUV444;
+ video_fmt->y_res = 0;
+ video_fmt->x_res = 0;
+
+ video_int->vsp = 0;
+ video_int->hsp = 0;
+
+ video_int->interlacing = 0;
+ video_int->tm = 0; /* HDMI_TIMING_SLAVE */
+
+}
+
+static void hdmi_wp_video_start(bool start)
+{
+ REG_FLD_MOD(HDMI_WP_VIDEO_CFG, start, 31, 31);
+}
+
+static void hdmi_wp_video_init_format(struct hdmi_video_format *video_fmt,
+ struct omap_video_timings *timings, struct hdmi_config *param)
+{
+ DSSDBG("Enter hdmi_wp_video_init_format\n");
+
+ video_fmt->y_res = param->timings.timings.y_res;
+ video_fmt->x_res = param->timings.timings.x_res;
+
+ timings->hbp = param->timings.timings.hbp;
+ timings->hfp = param->timings.timings.hfp;
+ timings->hsw = param->timings.timings.hsw;
+ timings->vbp = param->timings.timings.vbp;
+ timings->vfp = param->timings.timings.vfp;
+ timings->vsw = param->timings.timings.vsw;
+}
+
+static void hdmi_wp_video_config_format(
+ struct hdmi_video_format *video_fmt)
+{
+ u32 l = 0;
+
+ REG_FLD_MOD(HDMI_WP_VIDEO_CFG, video_fmt->packing_mode, 10, 8);
+
+ l |= FLD_VAL(video_fmt->y_res, 31, 16);
+ l |= FLD_VAL(video_fmt->x_res, 15, 0);
+ hdmi_write_reg(HDMI_WP_VIDEO_SIZE, l);
+}
+
+static void hdmi_wp_video_config_interface(
+ struct hdmi_video_interface *video_int)
+{
+ u32 r;
+ DSSDBG("Enter hdmi_wp_video_config_interface\n");
+
+ r = hdmi_read_reg(HDMI_WP_VIDEO_CFG);
+ r = FLD_MOD(r, video_int->vsp, 7, 7);
+ r = FLD_MOD(r, video_int->hsp, 6, 6);
+ r = FLD_MOD(r, video_int->interlacing, 3, 3);
+ r = FLD_MOD(r, video_int->tm, 1, 0);
+ hdmi_write_reg(HDMI_WP_VIDEO_CFG, r);
+}
+
+static void hdmi_wp_video_config_timing(
+ struct omap_video_timings *timings)
+{
+ u32 timing_h = 0;
+ u32 timing_v = 0;
+
+ DSSDBG("Enter hdmi_wp_video_config_timing\n");
+
+ timing_h |= FLD_VAL(timings->hbp, 31, 20);
+ timing_h |= FLD_VAL(timings->hfp, 19, 8);
+ timing_h |= FLD_VAL(timings->hsw, 7, 0);
+ hdmi_write_reg(HDMI_WP_VIDEO_TIMING_H, timing_h);
+
+ timing_v |= FLD_VAL(timings->vbp, 31, 20);
+ timing_v |= FLD_VAL(timings->vfp, 19, 8);
+ timing_v |= FLD_VAL(timings->vsw, 7, 0);
+ hdmi_write_reg(HDMI_WP_VIDEO_TIMING_V, timing_v);
+}
+
+static void hdmi_basic_configure(struct hdmi_config *cfg)
+{
+ /* HDMI */
+ struct omap_video_timings video_timing;
+ struct hdmi_video_format video_format;
+ struct hdmi_video_interface video_interface;
+ /* HDMI core */
+ struct hdmi_core_infoframe_avi avi_cfg;
+ struct hdmi_core_video_config v_core_cfg;
+ struct hdmi_core_packet_enable_repeat repeat_cfg;
+
+ hdmi_wp_init(&video_timing, &video_format,
+ &video_interface);
+
+ hdmi_core_init(&v_core_cfg,
+ &avi_cfg,
+ &repeat_cfg);
+
+ hdmi_wp_video_init_format(&video_format,
+ &video_timing, cfg);
+
+ hdmi_wp_video_config_timing(&video_timing);
+
+ /* video config */
+ video_format.packing_mode = HDMI_PACK_24b_RGB_YUV444_YUV422;
+
+ hdmi_wp_video_config_format(&video_format);
+
+ video_interface.vsp = cfg->timings.vsync_pol;
+ video_interface.hsp = cfg->timings.hsync_pol;
+ video_interface.interlacing = cfg->interlace;
+ video_interface.tm = 1 ; /* HDMI_TIMING_MASTER_24BIT */
+
+ hdmi_wp_video_config_interface(&video_interface);
+
+ /*
+ * configure core video part
+ * set software reset in the core
+ */
+ hdmi_core_swreset_assert();
+
+ /* power down off */
+ hdmi_core_powerdown_disable();
+
+ v_core_cfg.pkt_mode = HDMI_PACKETMODE24BITPERPIXEL;
+ v_core_cfg.hdmi_dvi = cfg->cm.mode;
+
+ hdmi_core_video_config(&v_core_cfg);
+
+ /* release software reset in the core */
+ hdmi_core_swreset_release();
+
+ /*
+ * configure packet
+ * info frame video see doc CEA861-D page 65
+ */
+ avi_cfg.db1_format = HDMI_INFOFRAME_AVI_DB1Y_RGB;
+ avi_cfg.db1_active_info =
+ HDMI_INFOFRAME_AVI_DB1A_ACTIVE_FORMAT_OFF;
+ avi_cfg.db1_bar_info_dv = HDMI_INFOFRAME_AVI_DB1B_NO;
+ avi_cfg.db1_scan_info = HDMI_INFOFRAME_AVI_DB1S_0;
+ avi_cfg.db2_colorimetry = HDMI_INFOFRAME_AVI_DB2C_NO;
+ avi_cfg.db2_aspect_ratio = HDMI_INFOFRAME_AVI_DB2M_NO;
+ avi_cfg.db2_active_fmt_ar = HDMI_INFOFRAME_AVI_DB2R_SAME;
+ avi_cfg.db3_itc = HDMI_INFOFRAME_AVI_DB3ITC_NO;
+ avi_cfg.db3_ec = HDMI_INFOFRAME_AVI_DB3EC_XVYUV601;
+ avi_cfg.db3_q_range = HDMI_INFOFRAME_AVI_DB3Q_DEFAULT;
+ avi_cfg.db3_nup_scaling = HDMI_INFOFRAME_AVI_DB3SC_NO;
+ avi_cfg.db4_videocode = cfg->cm.code;
+ avi_cfg.db5_pixel_repeat = HDMI_INFOFRAME_AVI_DB5PR_NO;
+ avi_cfg.db6_7_line_eoftop = 0;
+ avi_cfg.db8_9_line_sofbottom = 0;
+ avi_cfg.db10_11_pixel_eofleft = 0;
+ avi_cfg.db12_13_pixel_sofright = 0;
+
+ hdmi_core_aux_infoframe_avi_config(avi_cfg);
+
+ /* enable/repeat the infoframe */
+ repeat_cfg.avi_infoframe = HDMI_PACKETENABLE;
+ repeat_cfg.avi_infoframe_repeat = HDMI_PACKETREPEATON;
+ /* wakeup */
+ repeat_cfg.audio_pkt = HDMI_PACKETENABLE;
+ repeat_cfg.audio_pkt_repeat = HDMI_PACKETREPEATON;
+ hdmi_core_av_packet_config(repeat_cfg);
+}
+
+static void update_hdmi_timings(struct hdmi_config *cfg,
+ struct omap_video_timings *timings, int code)
+{
+ cfg->timings.timings.x_res = timings->x_res;
+ cfg->timings.timings.y_res = timings->y_res;
+ cfg->timings.timings.hbp = timings->hbp;
+ cfg->timings.timings.hfp = timings->hfp;
+ cfg->timings.timings.hsw = timings->hsw;
+ cfg->timings.timings.vbp = timings->vbp;
+ cfg->timings.timings.vfp = timings->vfp;
+ cfg->timings.timings.vsw = timings->vsw;
+ cfg->timings.timings.pixel_clock = timings->pixel_clock;
+ cfg->timings.vsync_pol = cea_vesa_timings[code].vsync_pol;
+ cfg->timings.hsync_pol = cea_vesa_timings[code].hsync_pol;
+}
+
+static void hdmi_compute_pll(unsigned long clkin, int phy,
+ int n, struct hdmi_pll_info *pi)
+{
+ unsigned long refclk;
+ u32 mf;
+
+ /*
+ * Input clock is predivided by N + 1
+ * out put of which is reference clk
+ */
+ refclk = clkin / (n + 1);
+ pi->regn = n;
+
+ /*
+ * multiplier is pixel_clk/ref_clk
+ * Multiplying by 100 to avoid fractional part removal
+ */
+ pi->regm = (phy * 100/(refclk))/100;
+ pi->regm2 = 1;
+
+ /*
+ * fractional multiplier is remainder of the difference between
+ * multiplier and actual phy(required pixel clock thus should be
+ * multiplied by 2^18(262144) divided by the reference clock
+ */
+ mf = (phy - pi->regm * refclk) * 262144;
+ pi->regmf = mf/(refclk);
+
+ /*
+ * Dcofreq should be set to 1 if required pixel clock
+ * is greater than 1000MHz
+ */
+ pi->dcofreq = phy > 1000 * 100;
+ pi->regsd = ((pi->regm * clkin / 10) / ((n + 1) * 250) + 5) / 10;
+
+ DSSDBG("M = %d Mf = %d\n", pi->regm, pi->regmf);
+ DSSDBG("range = %d sd = %d\n", pi->dcofreq, pi->regsd);
+}
+
+static void hdmi_enable_clocks(int enable)
+{
+ if (enable)
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK |
+ DSS_CLK_SYSCK | DSS_CLK_VIDFCK);
+ else
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK |
+ DSS_CLK_SYSCK | DSS_CLK_VIDFCK);
+}
+
+static int hdmi_power_on(struct omap_dss_device *dssdev)
+{
+ int r, code = 0;
+ struct hdmi_pll_info pll_data;
+ struct omap_video_timings *p;
+ int clkin, n, phy;
+
+ hdmi_enable_clocks(1);
+
+ dispc_enable_channel(OMAP_DSS_CHANNEL_DIGIT, 0);
+
+ p = &dssdev->panel.timings;
+
+ DSSDBG("hdmi_power_on x_res= %d y_res = %d\n",
+ dssdev->panel.timings.x_res,
+ dssdev->panel.timings.y_res);
+
+ if (!hdmi.custom_set) {
+ DSSDBG("Read EDID as no EDID is not set on poweron\n");
+ hdmi_read_edid(p);
+ }
+ code = get_timings_index();
+ dssdev->panel.timings = cea_vesa_timings[code].timings;
+ update_hdmi_timings(&hdmi.cfg, p, code);
+
+ clkin = 3840; /* 38.4 MHz */
+ n = 15; /* this is a constant for our math */
+ phy = p->pixel_clock;
+
+ hdmi_compute_pll(clkin, phy, n, &pll_data);
+
+ hdmi_wp_video_start(0);
+
+ /* config the PLL and PHY first */
+ r = hdmi_pll_program(&pll_data);
+ if (r) {
+ DSSDBG("Failed to lock PLL\n");
+ goto err;
+ }
+
+ r = hdmi_phy_init();
+ if (r) {
+ DSSDBG("Failed to start PHY\n");
+ goto err;
+ }
+
+ hdmi.cfg.cm.mode = hdmi.mode;
+ hdmi.cfg.cm.code = hdmi.code;
+ hdmi_basic_configure(&hdmi.cfg);
+
+ /* Make selection of HDMI in DSS */
+ dss_select_hdmi_venc_clk_source(DSS_HDMI_M_PCLK);
+
+ /* Select the dispc clock source as PRCM clock, to ensure that it is not
+ * DSI PLL source as the clock selected by DSI PLL might not be
+ * sufficient for the resolution selected / that can be changed
+ * dynamically by user. This can be moved to single location , say
+ * Boardfile.
+ */
+ dss_select_dispc_clk_source(DSS_CLK_SRC_FCK);
+
+ /* bypass TV gamma table */
+ dispc_enable_gamma_table(0);
+
+ /* tv size */
+ dispc_set_digit_size(dssdev->panel.timings.x_res,
+ dssdev->panel.timings.y_res);
+
+ dispc_enable_channel(OMAP_DSS_CHANNEL_DIGIT, 1);
+
+ hdmi_wp_video_start(1);
+
+ return 0;
+err:
+ hdmi_enable_clocks(0);
+ return -EIO;
+}
+
+static void hdmi_power_off(struct omap_dss_device *dssdev)
+{
+ dispc_enable_channel(OMAP_DSS_CHANNEL_DIGIT, 0);
+
+ hdmi_wp_video_start(0);
+ hdmi_phy_off();
+ hdmi_set_pll_pwr(HDMI_PLLPWRCMD_ALLOFF);
+ hdmi_enable_clocks(0);
+
+ hdmi.edid_set = 0;
+}
+
+int omapdss_hdmi_display_check_timing(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ struct hdmi_cm cm;
+
+ cm = hdmi_get_code(timings);
+ if (cm.code == -1) {
+ DSSERR("Invalid timing entered\n");
+ return -EINVAL;
+ }
+
+ return 0;
+
+}
+
+void omapdss_hdmi_display_set_timing(struct omap_dss_device *dssdev)
+{
+ struct hdmi_cm cm;
+
+ hdmi.custom_set = 1;
+ cm = hdmi_get_code(&dssdev->panel.timings);
+ hdmi.code = cm.code;
+ hdmi.mode = cm.mode;
+ omapdss_hdmi_display_enable(dssdev);
+ hdmi.custom_set = 0;
+}
+
+int omapdss_hdmi_display_enable(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ DSSDBG("ENTER hdmi_display_enable\n");
+
+ mutex_lock(&hdmi.lock);
+
+ r = omap_dss_start_device(dssdev);
+ if (r) {
+ DSSERR("failed to start device\n");
+ goto err0;
+ }
+
+ if (dssdev->platform_enable) {
+ r = dssdev->platform_enable(dssdev);
+ if (r) {
+ DSSERR("failed to enable GPIO's\n");
+ goto err1;
+ }
+ }
+
+ r = hdmi_power_on(dssdev);
+ if (r) {
+ DSSERR("failed to power on device\n");
+ goto err2;
+ }
+
+ mutex_unlock(&hdmi.lock);
+ return 0;
+
+err2:
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+err1:
+ omap_dss_stop_device(dssdev);
+err0:
+ mutex_unlock(&hdmi.lock);
+ return r;
+}
+
+void omapdss_hdmi_display_disable(struct omap_dss_device *dssdev)
+{
+ DSSDBG("Enter hdmi_display_disable\n");
+
+ mutex_lock(&hdmi.lock);
+
+ hdmi_power_off(dssdev);
+
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+
+ omap_dss_stop_device(dssdev);
+
+ mutex_unlock(&hdmi.lock);
+}
+
+/* HDMI HW IP initialisation */
+static int omapdss_hdmihw_probe(struct platform_device *pdev)
+{
+ struct resource *hdmi_mem;
+
+ hdmi.pdata = pdev->dev.platform_data;
+ hdmi.pdev = pdev;
+
+ mutex_init(&hdmi.lock);
+
+ hdmi_mem = platform_get_resource(hdmi.pdev, IORESOURCE_MEM, 0);
+ if (!hdmi_mem) {
+ DSSERR("can't get IORESOURCE_MEM HDMI\n");
+ return -EINVAL;
+ }
+
+ /* Base address taken from platform */
+ hdmi.base_wp = ioremap(hdmi_mem->start, resource_size(hdmi_mem));
+ if (!hdmi.base_wp) {
+ DSSERR("can't ioremap WP\n");
+ return -ENOMEM;
+ }
+
+ hdmi_panel_init();
+
+ return 0;
+}
+
+static int omapdss_hdmihw_remove(struct platform_device *pdev)
+{
+ hdmi_panel_exit();
+
+ iounmap(hdmi.base_wp);
+
+ return 0;
+}
+
+static struct platform_driver omapdss_hdmihw_driver = {
+ .probe = omapdss_hdmihw_probe,
+ .remove = omapdss_hdmihw_remove,
+ .driver = {
+ .name = "omapdss_hdmi",
+ .owner = THIS_MODULE,
+ },
+};
+
+int hdmi_init_platform_driver(void)
+{
+ return platform_driver_register(&omapdss_hdmihw_driver);
+}
+
+void hdmi_uninit_platform_driver(void)
+{
+ return platform_driver_unregister(&omapdss_hdmihw_driver);
+}
--
1.5.6.3
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