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Subject[PATCH 11/18] OMAP: DSS2: Video encoder driver
Date
VENC (video encoder) driver implements OMAP's analog S-Video/Composite
TV-out.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
---
drivers/video/omap2/dss/venc.c | 797 ++++++++++++++++++++++++++++++++++++++++
1 files changed, 797 insertions(+), 0 deletions(-)
create mode 100644 drivers/video/omap2/dss/venc.c
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
new file mode 100644
index 0000000..cf7827e
--- /dev/null
+++ b/drivers/video/omap2/dss/venc.c
@@ -0,0 +1,797 @@
+/*
+ * linux/drivers/video/omap2/dss/venc.c
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * VENC settings from TI's DSS driver
+ *
+ * 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 "VENC"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/mutex.h>
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/seq_file.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+
+#include <mach/display.h>
+#include <mach/cpu.h>
+
+#include "dss.h"
+
+#define VENC_BASE 0x48050C00
+
+/* Venc registers */
+#define VENC_REV_ID 0x00
+#define VENC_STATUS 0x04
+#define VENC_F_CONTROL 0x08
+#define VENC_VIDOUT_CTRL 0x10
+#define VENC_SYNC_CTRL 0x14
+#define VENC_LLEN 0x1C
+#define VENC_FLENS 0x20
+#define VENC_HFLTR_CTRL 0x24
+#define VENC_CC_CARR_WSS_CARR 0x28
+#define VENC_C_PHASE 0x2C
+#define VENC_GAIN_U 0x30
+#define VENC_GAIN_V 0x34
+#define VENC_GAIN_Y 0x38
+#define VENC_BLACK_LEVEL 0x3C
+#define VENC_BLANK_LEVEL 0x40
+#define VENC_X_COLOR 0x44
+#define VENC_M_CONTROL 0x48
+#define VENC_BSTAMP_WSS_DATA 0x4C
+#define VENC_S_CARR 0x50
+#define VENC_LINE21 0x54
+#define VENC_LN_SEL 0x58
+#define VENC_L21__WC_CTL 0x5C
+#define VENC_HTRIGGER_VTRIGGER 0x60
+#define VENC_SAVID__EAVID 0x64
+#define VENC_FLEN__FAL 0x68
+#define VENC_LAL__PHASE_RESET 0x6C
+#define VENC_HS_INT_START_STOP_X 0x70
+#define VENC_HS_EXT_START_STOP_X 0x74
+#define VENC_VS_INT_START_X 0x78
+#define VENC_VS_INT_STOP_X__VS_INT_START_Y 0x7C
+#define VENC_VS_INT_STOP_Y__VS_EXT_START_X 0x80
+#define VENC_VS_EXT_STOP_X__VS_EXT_START_Y 0x84
+#define VENC_VS_EXT_STOP_Y 0x88
+#define VENC_AVID_START_STOP_X 0x90
+#define VENC_AVID_START_STOP_Y 0x94
+#define VENC_FID_INT_START_X__FID_INT_START_Y 0xA0
+#define VENC_FID_INT_OFFSET_Y__FID_EXT_START_X 0xA4
+#define VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y 0xA8
+#define VENC_TVDETGP_INT_START_STOP_X 0xB0
+#define VENC_TVDETGP_INT_START_STOP_Y 0xB4
+#define VENC_GEN_CTRL 0xB8
+#define VENC_OUTPUT_CONTROL 0xC4
+#define VENC_OUTPUT_TEST 0xC8
+#define VENC_DAC_B__DAC_C 0xC8
+
+struct venc_config {
+ u32 f_control;
+ u32 vidout_ctrl;
+ u32 sync_ctrl;
+ u32 llen;
+ u32 flens;
+ u32 hfltr_ctrl;
+ u32 cc_carr_wss_carr;
+ u32 c_phase;
+ u32 gain_u;
+ u32 gain_v;
+ u32 gain_y;
+ u32 black_level;
+ u32 blank_level;
+ u32 x_color;
+ u32 m_control;
+ u32 bstamp_wss_data;
+ u32 s_carr;
+ u32 line21;
+ u32 ln_sel;
+ u32 l21__wc_ctl;
+ u32 htrigger_vtrigger;
+ u32 savid__eavid;
+ u32 flen__fal;
+ u32 lal__phase_reset;
+ u32 hs_int_start_stop_x;
+ u32 hs_ext_start_stop_x;
+ u32 vs_int_start_x;
+ u32 vs_int_stop_x__vs_int_start_y;
+ u32 vs_int_stop_y__vs_ext_start_x;
+ u32 vs_ext_stop_x__vs_ext_start_y;
+ u32 vs_ext_stop_y;
+ u32 avid_start_stop_x;
+ u32 avid_start_stop_y;
+ u32 fid_int_start_x__fid_int_start_y;
+ u32 fid_int_offset_y__fid_ext_start_x;
+ u32 fid_ext_start_y__fid_ext_offset_y;
+ u32 tvdetgp_int_start_stop_x;
+ u32 tvdetgp_int_start_stop_y;
+ u32 gen_ctrl;
+};
+
+/* from TRM */
+static const struct venc_config venc_config_pal_trm = {
+ .f_control = 0,
+ .vidout_ctrl = 1,
+ .sync_ctrl = 0x40,
+ .llen = 0x35F, /* 863 */
+ .flens = 0x270, /* 624 */
+ .hfltr_ctrl = 0,
+ .cc_carr_wss_carr = 0x2F7225ED,
+ .c_phase = 0,
+ .gain_u = 0x111,
+ .gain_v = 0x181,
+ .gain_y = 0x140,
+ .black_level = 0x3B,
+ .blank_level = 0x3B,
+ .x_color = 0x7,
+ .m_control = 0x2,
+ .bstamp_wss_data = 0x3F,
+ .s_carr = 0x2A098ACB,
+ .line21 = 0,
+ .ln_sel = 0x01290015,
+ .l21__wc_ctl = 0x0000F603,
+ .htrigger_vtrigger = 0,
+
+ .savid__eavid = 0x06A70108,
+ .flen__fal = 0x00180270,
+ .lal__phase_reset = 0x00040135,
+ .hs_int_start_stop_x = 0x00880358,
+ .hs_ext_start_stop_x = 0x000F035F,
+ .vs_int_start_x = 0x01A70000,
+ .vs_int_stop_x__vs_int_start_y = 0x000001A7,
+ .vs_int_stop_y__vs_ext_start_x = 0x01AF0000,
+ .vs_ext_stop_x__vs_ext_start_y = 0x000101AF,
+ .vs_ext_stop_y = 0x00000025,
+ .avid_start_stop_x = 0x03530083,
+ .avid_start_stop_y = 0x026C002E,
+ .fid_int_start_x__fid_int_start_y = 0x0001008A,
+ .fid_int_offset_y__fid_ext_start_x = 0x002E0138,
+ .fid_ext_start_y__fid_ext_offset_y = 0x01380001,
+
+ .tvdetgp_int_start_stop_x = 0x00140001,
+ .tvdetgp_int_start_stop_y = 0x00010001,
+ .gen_ctrl = 0x00FF0000,
+};
+
+/* from TRM */
+static const struct venc_config venc_config_ntsc_trm = {
+ .f_control = 0,
+ .vidout_ctrl = 1,
+ .sync_ctrl = 0x8040,
+ .llen = 0x359,
+ .flens = 0x20C,
+ .hfltr_ctrl = 0,
+ .cc_carr_wss_carr = 0x043F2631,
+ .c_phase = 0,
+ .gain_u = 0x102,
+ .gain_v = 0x16C,
+ .gain_y = 0x12F,
+ .black_level = 0x43,
+ .blank_level = 0x38,
+ .x_color = 0x7,
+ .m_control = 0x1,
+ .bstamp_wss_data = 0x38,
+ .s_carr = 0x21F07C1F,
+ .line21 = 0,
+ .ln_sel = 0x01310011,
+ .l21__wc_ctl = 0x0000F003,
+ .htrigger_vtrigger = 0,
+
+ .savid__eavid = 0x069300F4,
+ .flen__fal = 0x0016020C,
+ .lal__phase_reset = 0x00060107,
+ .hs_int_start_stop_x = 0x008E0350,
+ .hs_ext_start_stop_x = 0x000F0359,
+ .vs_int_start_x = 0x01A00000,
+ .vs_int_stop_x__vs_int_start_y = 0x020701A0,
+ .vs_int_stop_y__vs_ext_start_x = 0x01AC0024,
+ .vs_ext_stop_x__vs_ext_start_y = 0x020D01AC,
+ .vs_ext_stop_y = 0x00000006,
+ .avid_start_stop_x = 0x03480078,
+ .avid_start_stop_y = 0x02060024,
+ .fid_int_start_x__fid_int_start_y = 0x0001008A,
+ .fid_int_offset_y__fid_ext_start_x = 0x01AC0106,
+ .fid_ext_start_y__fid_ext_offset_y = 0x01060006,
+
+ .tvdetgp_int_start_stop_x = 0x00140001,
+ .tvdetgp_int_start_stop_y = 0x00010001,
+ .gen_ctrl = 0x00F90000,
+};
+
+static const struct venc_config venc_config_pal_bdghi = {
+ .f_control = 0,
+ .vidout_ctrl = 0,
+ .sync_ctrl = 0,
+ .hfltr_ctrl = 0,
+ .x_color = 0,
+ .line21 = 0,
+ .ln_sel = 21,
+ .htrigger_vtrigger = 0,
+ .tvdetgp_int_start_stop_x = 0x00140001,
+ .tvdetgp_int_start_stop_y = 0x00010001,
+ .gen_ctrl = 0x00FB0000,
+
+ .llen = 864-1,
+ .flens = 625-1,
+ .cc_carr_wss_carr = 0x2F7625ED,
+ .c_phase = 0xDF,
+ .gain_u = 0x111,
+ .gain_v = 0x181,
+ .gain_y = 0x140,
+ .black_level = 0x3e,
+ .blank_level = 0x3e,
+ .m_control = 0<<2 | 1<<1,
+ .bstamp_wss_data = 0x42,
+ .s_carr = 0x2a098acb,
+ .l21__wc_ctl = 0<<13 | 0x16<<8 | 0<<0,
+ .savid__eavid = 0x06A70108,
+ .flen__fal = 23<<16 | 624<<0,
+ .lal__phase_reset = 2<<17 | 310<<0,
+ .hs_int_start_stop_x = 0x00920358,
+ .hs_ext_start_stop_x = 0x000F035F,
+ .vs_int_start_x = 0x1a7<<16,
+ .vs_int_stop_x__vs_int_start_y = 0x000601A7,
+ .vs_int_stop_y__vs_ext_start_x = 0x01AF0036,
+ .vs_ext_stop_x__vs_ext_start_y = 0x27101af,
+ .vs_ext_stop_y = 0x05,
+ .avid_start_stop_x = 0x03530082,
+ .avid_start_stop_y = 0x0270002E,
+ .fid_int_start_x__fid_int_start_y = 0x0005008A,
+ .fid_int_offset_y__fid_ext_start_x = 0x002E0138,
+ .fid_ext_start_y__fid_ext_offset_y = 0x01380005,
+};
+
+const struct omap_video_timings omap_dss_pal_timings = {
+ .x_res = 720,
+ .y_res = 574,
+ .pixel_clock = 13500,
+ .hsw = 64,
+ .hfp = 12,
+ .hbp = 68,
+ .vsw = 5,
+ .vfp = 5,
+ .vbp = 41,
+};
+EXPORT_SYMBOL(omap_dss_pal_timings);
+
+const struct omap_video_timings omap_dss_ntsc_timings = {
+ .x_res = 720,
+ .y_res = 482,
+ .pixel_clock = 13500,
+ .hsw = 64,
+ .hfp = 16,
+ .hbp = 58,
+ .vsw = 6,
+ .vfp = 6,
+ .vbp = 31,
+};
+EXPORT_SYMBOL(omap_dss_ntsc_timings);
+
+static struct {
+ void __iomem *base;
+ struct mutex venc_lock;
+ u32 wss_data;
+ struct regulator *vdda_dac_reg;
+} venc;
+
+static inline void venc_write_reg(int idx, u32 val)
+{
+ __raw_writel(val, venc.base + idx);
+}
+
+static inline u32 venc_read_reg(int idx)
+{
+ u32 l = __raw_readl(venc.base + idx);
+ return l;
+}
+
+static void venc_write_config(const struct venc_config *config)
+{
+ DSSDBG("write venc conf\n");
+
+ venc_write_reg(VENC_LLEN, config->llen);
+ venc_write_reg(VENC_FLENS, config->flens);
+ venc_write_reg(VENC_CC_CARR_WSS_CARR, config->cc_carr_wss_carr);
+ venc_write_reg(VENC_C_PHASE, config->c_phase);
+ venc_write_reg(VENC_GAIN_U, config->gain_u);
+ venc_write_reg(VENC_GAIN_V, config->gain_v);
+ venc_write_reg(VENC_GAIN_Y, config->gain_y);
+ venc_write_reg(VENC_BLACK_LEVEL, config->black_level);
+ venc_write_reg(VENC_BLANK_LEVEL, config->blank_level);
+ venc_write_reg(VENC_M_CONTROL, config->m_control);
+ venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data |
+ venc.wss_data);
+ venc_write_reg(VENC_S_CARR, config->s_carr);
+ venc_write_reg(VENC_L21__WC_CTL, config->l21__wc_ctl);
+ venc_write_reg(VENC_SAVID__EAVID, config->savid__eavid);
+ venc_write_reg(VENC_FLEN__FAL, config->flen__fal);
+ venc_write_reg(VENC_LAL__PHASE_RESET, config->lal__phase_reset);
+ venc_write_reg(VENC_HS_INT_START_STOP_X, config->hs_int_start_stop_x);
+ venc_write_reg(VENC_HS_EXT_START_STOP_X, config->hs_ext_start_stop_x);
+ venc_write_reg(VENC_VS_INT_START_X, config->vs_int_start_x);
+ venc_write_reg(VENC_VS_INT_STOP_X__VS_INT_START_Y,
+ config->vs_int_stop_x__vs_int_start_y);
+ venc_write_reg(VENC_VS_INT_STOP_Y__VS_EXT_START_X,
+ config->vs_int_stop_y__vs_ext_start_x);
+ venc_write_reg(VENC_VS_EXT_STOP_X__VS_EXT_START_Y,
+ config->vs_ext_stop_x__vs_ext_start_y);
+ venc_write_reg(VENC_VS_EXT_STOP_Y, config->vs_ext_stop_y);
+ venc_write_reg(VENC_AVID_START_STOP_X, config->avid_start_stop_x);
+ venc_write_reg(VENC_AVID_START_STOP_Y, config->avid_start_stop_y);
+ venc_write_reg(VENC_FID_INT_START_X__FID_INT_START_Y,
+ config->fid_int_start_x__fid_int_start_y);
+ venc_write_reg(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X,
+ config->fid_int_offset_y__fid_ext_start_x);
+ venc_write_reg(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y,
+ config->fid_ext_start_y__fid_ext_offset_y);
+
+ venc_write_reg(VENC_DAC_B__DAC_C, venc_read_reg(VENC_DAC_B__DAC_C));
+ venc_write_reg(VENC_VIDOUT_CTRL, config->vidout_ctrl);
+ venc_write_reg(VENC_HFLTR_CTRL, config->hfltr_ctrl);
+ venc_write_reg(VENC_X_COLOR, config->x_color);
+ venc_write_reg(VENC_LINE21, config->line21);
+ venc_write_reg(VENC_LN_SEL, config->ln_sel);
+ venc_write_reg(VENC_HTRIGGER_VTRIGGER, config->htrigger_vtrigger);
+ venc_write_reg(VENC_TVDETGP_INT_START_STOP_X,
+ config->tvdetgp_int_start_stop_x);
+ venc_write_reg(VENC_TVDETGP_INT_START_STOP_Y,
+ config->tvdetgp_int_start_stop_y);
+ venc_write_reg(VENC_GEN_CTRL, config->gen_ctrl);
+ venc_write_reg(VENC_F_CONTROL, config->f_control);
+ venc_write_reg(VENC_SYNC_CTRL, config->sync_ctrl);
+}
+
+static void venc_reset(void)
+{
+ int t = 1000;
+
+ venc_write_reg(VENC_F_CONTROL, 1<<8);
+ while (venc_read_reg(VENC_F_CONTROL) & (1<<8)) {
+ if (--t == 0) {
+ DSSERR("Failed to reset venc\n");
+ return;
+ }
+ }
+
+ /* the magical sleep that makes things work */
+ msleep(20);
+}
+
+static void venc_enable_clocks(int enable)
+{
+ if (enable)
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M |
+ DSS_CLK_96M);
+ else
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M |
+ DSS_CLK_96M);
+}
+
+static const struct venc_config *venc_timings_to_config(
+ struct omap_video_timings *timings)
+{
+ if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0)
+ return &venc_config_pal_trm;
+
+ if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0)
+ return &venc_config_ntsc_trm;
+
+ BUG();
+}
+
+
+
+
+
+/* driver */
+static int venc_panel_probe(struct omap_dss_device *dssdev)
+{
+ dssdev->panel.timings = omap_dss_pal_timings;
+
+ return 0;
+}
+
+static void venc_panel_remove(struct omap_dss_device *dssdev)
+{
+}
+
+static int venc_panel_enable(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ /* wait couple of vsyncs until enabling the LCD */
+ msleep(50);
+
+ if (dssdev->platform_enable)
+ r = dssdev->platform_enable(dssdev);
+
+ return r;
+}
+
+static void venc_panel_disable(struct omap_dss_device *dssdev)
+{
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+
+ /* wait at least 5 vsyncs after disabling the LCD */
+
+ msleep(100);
+}
+
+static int venc_panel_suspend(struct omap_dss_device *dssdev)
+{
+ venc_panel_disable(dssdev);
+ return 0;
+}
+
+static int venc_panel_resume(struct omap_dss_device *dssdev)
+{
+ return venc_panel_enable(dssdev);
+}
+
+static struct omap_dss_driver venc_driver = {
+ .probe = venc_panel_probe,
+ .remove = venc_panel_remove,
+
+ .enable = venc_panel_enable,
+ .disable = venc_panel_disable,
+ .suspend = venc_panel_suspend,
+ .resume = venc_panel_resume,
+
+ .driver = {
+ .name = "venc",
+ .owner = THIS_MODULE,
+ },
+};
+/* driver end */
+
+
+
+int venc_init(struct platform_device *pdev)
+{
+ u8 rev_id;
+
+ mutex_init(&venc.venc_lock);
+
+ venc.wss_data = 0;
+
+ venc.base = ioremap(VENC_BASE, SZ_1K);
+ if (!venc.base) {
+ DSSERR("can't ioremap VENC\n");
+ return -ENOMEM;
+ }
+
+ venc.vdda_dac_reg = regulator_get(&pdev->dev, "vdda_dac");
+ if (IS_ERR(venc.vdda_dac_reg)) {
+ iounmap(venc.base);
+ DSSERR("can't get VDDA_DAC regulator\n");
+ return PTR_ERR(venc.vdda_dac_reg);
+ }
+
+ venc_enable_clocks(1);
+
+ rev_id = (u8)(venc_read_reg(VENC_REV_ID) & 0xff);
+ printk(KERN_INFO "OMAP VENC rev %d\n", rev_id);
+
+ venc_enable_clocks(0);
+
+ return omap_dss_register_driver(&venc_driver);
+}
+
+void venc_exit(void)
+{
+ omap_dss_unregister_driver(&venc_driver);
+
+ regulator_put(venc.vdda_dac_reg);
+
+ iounmap(venc.base);
+}
+
+static void venc_power_on(struct omap_dss_device *dssdev)
+{
+ u32 l;
+
+ venc_enable_clocks(1);
+
+ venc_reset();
+ venc_write_config(venc_timings_to_config(&dssdev->panel.timings));
+
+ dss_set_venc_output(dssdev->phy.venc.type);
+ dss_set_dac_pwrdn_bgz(1);
+
+ l = 0;
+
+ if (dssdev->phy.venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE)
+ l |= 1 << 1;
+ else /* S-Video */
+ l |= (1 << 0) | (1 << 2);
+
+ if (dssdev->phy.venc.invert_polarity == false)
+ l |= 1 << 3;
+
+ venc_write_reg(VENC_OUTPUT_CONTROL, l);
+
+ dispc_set_digit_size(dssdev->panel.timings.x_res,
+ dssdev->panel.timings.y_res/2);
+
+ regulator_enable(venc.vdda_dac_reg);
+
+ if (dssdev->platform_enable)
+ dssdev->platform_enable(dssdev);
+
+ dispc_enable_digit_out(1);
+}
+
+static void venc_power_off(struct omap_dss_device *dssdev)
+{
+ venc_write_reg(VENC_OUTPUT_CONTROL, 0);
+ dss_set_dac_pwrdn_bgz(0);
+
+ dispc_enable_digit_out(0);
+
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+
+ regulator_disable(venc.vdda_dac_reg);
+
+ venc_enable_clocks(0);
+}
+
+static int venc_enable_display(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ DSSDBG("venc_enable_display\n");
+
+ mutex_lock(&venc.venc_lock);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
+ r = -EINVAL;
+ goto err;
+ }
+
+ venc_power_on(dssdev);
+
+ venc.wss_data = 0;
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+err:
+ mutex_unlock(&venc.venc_lock);
+
+ return r;
+}
+
+static void venc_disable_display(struct omap_dss_device *dssdev)
+{
+ DSSDBG("venc_disable_display\n");
+
+ mutex_lock(&venc.venc_lock);
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
+ goto end;
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) {
+ /* suspended is the same as disabled with venc */
+ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+ goto end;
+ }
+
+ venc_power_off(dssdev);
+
+ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+end:
+ mutex_unlock(&venc.venc_lock);
+}
+
+static int venc_display_suspend(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ DSSDBG("venc_display_suspend\n");
+
+ mutex_lock(&venc.venc_lock);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
+ r = -EINVAL;
+ goto err;
+ }
+
+ venc_power_off(dssdev);
+
+ dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
+err:
+ mutex_unlock(&venc.venc_lock);
+
+ return r;
+}
+
+static int venc_display_resume(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ DSSDBG("venc_display_resume\n");
+
+ mutex_lock(&venc.venc_lock);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) {
+ r = -EINVAL;
+ goto err;
+ }
+
+ venc_power_on(dssdev);
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+err:
+ mutex_unlock(&venc.venc_lock);
+
+ return r;
+}
+
+static void venc_get_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ *timings = dssdev->panel.timings;
+}
+
+static void venc_set_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ DSSDBG("venc_set_timings\n");
+
+ /* Reset WSS data when the TV standard changes. */
+ if (memcmp(&dssdev->panel.timings, timings, sizeof(*timings)))
+ venc.wss_data = 0;
+
+ dssdev->panel.timings = *timings;
+ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
+ /* turn the venc off and on to get new timings to use */
+ venc_disable_display(dssdev);
+ venc_enable_display(dssdev);
+ }
+}
+
+static int venc_check_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ DSSDBG("venc_check_timings\n");
+
+ if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0)
+ return 0;
+
+ if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0)
+ return 0;
+
+ return -EINVAL;
+}
+
+static u32 venc_get_wss(struct omap_dss_device *dssdev)
+{
+ /* Invert due to VENC_L21_WC_CTL:INV=1 */
+ return (venc.wss_data >> 8) ^ 0xfffff;
+}
+
+static int venc_set_wss(struct omap_dss_device *dssdev, u32 wss)
+{
+ const struct venc_config *config;
+
+ DSSDBG("venc_set_wss\n");
+
+ mutex_lock(&venc.venc_lock);
+
+ config = venc_timings_to_config(&dssdev->panel.timings);
+
+ /* Invert due to VENC_L21_WC_CTL:INV=1 */
+ venc.wss_data = (wss ^ 0xfffff) << 8;
+
+ venc_enable_clocks(1);
+
+ venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data |
+ venc.wss_data);
+
+ venc_enable_clocks(0);
+
+ mutex_unlock(&venc.venc_lock);
+
+ return 0;
+}
+
+static enum omap_dss_update_mode venc_display_get_update_mode(
+ struct omap_dss_device *dssdev)
+{
+ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
+ return OMAP_DSS_UPDATE_AUTO;
+ else
+ return OMAP_DSS_UPDATE_DISABLED;
+}
+
+int venc_init_display(struct omap_dss_device *dssdev)
+{
+ DSSDBG("init_display\n");
+
+ dssdev->enable = venc_enable_display;
+ dssdev->disable = venc_disable_display;
+ dssdev->suspend = venc_display_suspend;
+ dssdev->resume = venc_display_resume;
+ dssdev->get_timings = venc_get_timings;
+ dssdev->set_timings = venc_set_timings;
+ dssdev->check_timings = venc_check_timings;
+ dssdev->get_wss = venc_get_wss;
+ dssdev->set_wss = venc_set_wss;
+ dssdev->get_update_mode = venc_display_get_update_mode;
+
+ return 0;
+}
+
+void venc_dump_regs(struct seq_file *s)
+{
+#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, venc_read_reg(r))
+
+ venc_enable_clocks(1);
+
+ DUMPREG(VENC_F_CONTROL);
+ DUMPREG(VENC_VIDOUT_CTRL);
+ DUMPREG(VENC_SYNC_CTRL);
+ DUMPREG(VENC_LLEN);
+ DUMPREG(VENC_FLENS);
+ DUMPREG(VENC_HFLTR_CTRL);
+ DUMPREG(VENC_CC_CARR_WSS_CARR);
+ DUMPREG(VENC_C_PHASE);
+ DUMPREG(VENC_GAIN_U);
+ DUMPREG(VENC_GAIN_V);
+ DUMPREG(VENC_GAIN_Y);
+ DUMPREG(VENC_BLACK_LEVEL);
+ DUMPREG(VENC_BLANK_LEVEL);
+ DUMPREG(VENC_X_COLOR);
+ DUMPREG(VENC_M_CONTROL);
+ DUMPREG(VENC_BSTAMP_WSS_DATA);
+ DUMPREG(VENC_S_CARR);
+ DUMPREG(VENC_LINE21);
+ DUMPREG(VENC_LN_SEL);
+ DUMPREG(VENC_L21__WC_CTL);
+ DUMPREG(VENC_HTRIGGER_VTRIGGER);
+ DUMPREG(VENC_SAVID__EAVID);
+ DUMPREG(VENC_FLEN__FAL);
+ DUMPREG(VENC_LAL__PHASE_RESET);
+ DUMPREG(VENC_HS_INT_START_STOP_X);
+ DUMPREG(VENC_HS_EXT_START_STOP_X);
+ DUMPREG(VENC_VS_INT_START_X);
+ DUMPREG(VENC_VS_INT_STOP_X__VS_INT_START_Y);
+ DUMPREG(VENC_VS_INT_STOP_Y__VS_EXT_START_X);
+ DUMPREG(VENC_VS_EXT_STOP_X__VS_EXT_START_Y);
+ DUMPREG(VENC_VS_EXT_STOP_Y);
+ DUMPREG(VENC_AVID_START_STOP_X);
+ DUMPREG(VENC_AVID_START_STOP_Y);
+ DUMPREG(VENC_FID_INT_START_X__FID_INT_START_Y);
+ DUMPREG(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X);
+ DUMPREG(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y);
+ DUMPREG(VENC_TVDETGP_INT_START_STOP_X);
+ DUMPREG(VENC_TVDETGP_INT_START_STOP_Y);
+ DUMPREG(VENC_GEN_CTRL);
+ DUMPREG(VENC_OUTPUT_CONTROL);
+ DUMPREG(VENC_OUTPUT_TEST);
+
+ venc_enable_clocks(0);
+
+#undef DUMPREG
+}
--
1.6.4


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  Last update: 2009-08-28 14:29    [from the cache]
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