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display.h

/*
 * linux/include/asm-arm/arch-omap/display.h
 *
 * Copyright (C) 2008 Nokia Corporation
 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
 *
 * 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/>.
 */

#ifndef __ASM_ARCH_OMAP_DISPLAY_H
#define __ASM_ARCH_OMAP_DISPLAY_H

#include <linux/list.h>
#include <linux/kobject.h>
#include <linux/device.h>
#include <asm/atomic.h>

#define DISPC_IRQ_FRAMEDONE         (1 << 0)
#define DISPC_IRQ_VSYNC             (1 << 1)
#define DISPC_IRQ_EVSYNC_EVEN       (1 << 2)
#define DISPC_IRQ_EVSYNC_ODD        (1 << 3)
#define DISPC_IRQ_ACBIAS_COUNT_STAT (1 << 4)
#define DISPC_IRQ_PROG_LINE_NUM           (1 << 5)
#define DISPC_IRQ_GFX_FIFO_UNDERFLOW      (1 << 6)
#define DISPC_IRQ_GFX_END_WIN       (1 << 7)
#define DISPC_IRQ_PAL_GAMMA_MASK    (1 << 8)
#define DISPC_IRQ_OCP_ERR           (1 << 9)
#define DISPC_IRQ_VID1_FIFO_UNDERFLOW     (1 << 10)
#define DISPC_IRQ_VID1_END_WIN            (1 << 11)
#define DISPC_IRQ_VID2_FIFO_UNDERFLOW     (1 << 12)
#define DISPC_IRQ_VID2_END_WIN            (1 << 13)
#define DISPC_IRQ_SYNC_LOST         (1 << 14)
#define DISPC_IRQ_SYNC_LOST_DIGIT   (1 << 15)
#define DISPC_IRQ_WAKEUP            (1 << 16)
#define DISPC_IRQ_SYNC_LOST2        (1 << 17)
#define DISPC_IRQ_VSYNC2            (1 << 18)
#define DISPC_IRQ_ACBIAS_COUNT_STAT2      (1 << 21)
#define DISPC_IRQ_FRAMEDONE2        (1 << 22)

struct omap_dss_device;
struct omap_overlay_manager;

enum omap_display_type {
      OMAP_DISPLAY_TYPE_NONE        = 0,
      OMAP_DISPLAY_TYPE_DPI         = 1 << 0,
      OMAP_DISPLAY_TYPE_DBI         = 1 << 1,
      OMAP_DISPLAY_TYPE_SDI         = 1 << 2,
      OMAP_DISPLAY_TYPE_DSI         = 1 << 3,
      OMAP_DISPLAY_TYPE_VENC        = 1 << 4,
};

enum omap_plane {
      OMAP_DSS_GFX      = 0,
      OMAP_DSS_VIDEO1   = 1,
      OMAP_DSS_VIDEO2   = 2
};

enum omap_channel {
      OMAP_DSS_CHANNEL_LCD    = 0,
      OMAP_DSS_CHANNEL_DIGIT  = 1,
      OMAP_DSS_CHANNEL_LCD2   = 2,
};

enum omap_color_mode {
      OMAP_DSS_COLOR_CLUT1    = 1 << 0,  /* BITMAP 1 */
      OMAP_DSS_COLOR_CLUT2    = 1 << 1,  /* BITMAP 2 */
      OMAP_DSS_COLOR_CLUT4    = 1 << 2,  /* BITMAP 4 */
      OMAP_DSS_COLOR_CLUT8    = 1 << 3,  /* BITMAP 8 */
      OMAP_DSS_COLOR_RGB12U   = 1 << 4,  /* RGB12, 16-bit container */
      OMAP_DSS_COLOR_ARGB16   = 1 << 5,  /* ARGB16 */
      OMAP_DSS_COLOR_RGB16    = 1 << 6,  /* RGB16 */
      OMAP_DSS_COLOR_RGB24U   = 1 << 7,  /* RGB24, 32-bit container */
      OMAP_DSS_COLOR_RGB24P   = 1 << 8,  /* RGB24, 24-bit container */
      OMAP_DSS_COLOR_YUV2     = 1 << 9,  /* YUV2 4:2:2 co-sited */
      OMAP_DSS_COLOR_UYVY     = 1 << 10, /* UYVY 4:2:2 co-sited */
      OMAP_DSS_COLOR_ARGB32   = 1 << 11, /* ARGB32 */
      OMAP_DSS_COLOR_RGBA32   = 1 << 12, /* RGBA32 */
      OMAP_DSS_COLOR_RGBX32   = 1 << 13, /* RGBx32 */
};

enum omap_lcd_display_type {
      OMAP_DSS_LCD_DISPLAY_STN,
      OMAP_DSS_LCD_DISPLAY_TFT,
};

enum omap_dss_load_mode {
      OMAP_DSS_LOAD_CLUT_AND_FRAME  = 0,
      OMAP_DSS_LOAD_CLUT_ONLY       = 1,
      OMAP_DSS_LOAD_FRAME_ONLY      = 2,
      OMAP_DSS_LOAD_CLUT_ONCE_FRAME = 3,
};

enum omap_dss_trans_key_type {
      OMAP_DSS_COLOR_KEY_GFX_DST = 0,
      OMAP_DSS_COLOR_KEY_VID_SRC = 1,
};

enum omap_rfbi_te_mode {
      OMAP_DSS_RFBI_TE_MODE_1 = 1,
      OMAP_DSS_RFBI_TE_MODE_2 = 2,
};

enum omap_panel_config {
      OMAP_DSS_LCD_IVS        = 1<<0,
      OMAP_DSS_LCD_IHS        = 1<<1,
      OMAP_DSS_LCD_IPC        = 1<<2,
      OMAP_DSS_LCD_IEO        = 1<<3,
      OMAP_DSS_LCD_RF               = 1<<4,
      OMAP_DSS_LCD_ONOFF            = 1<<5,

      OMAP_DSS_LCD_TFT        = 1<<20,
};

enum omap_dss_venc_type {
      OMAP_DSS_VENC_TYPE_COMPOSITE,
      OMAP_DSS_VENC_TYPE_SVIDEO,
};

enum omap_display_caps {
      OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE  = 1 << 0,
      OMAP_DSS_DISPLAY_CAP_TEAR_ELIM            = 1 << 1,
};

enum omap_dss_update_mode {
      OMAP_DSS_UPDATE_DISABLED = 0,
      OMAP_DSS_UPDATE_AUTO,
      OMAP_DSS_UPDATE_MANUAL,
};

enum omap_dss_display_state {
      OMAP_DSS_DISPLAY_DISABLED = 0,
      OMAP_DSS_DISPLAY_ACTIVE,
      OMAP_DSS_DISPLAY_SUSPENDED,
};

/* XXX perhaps this should be removed */
enum omap_dss_overlay_managers {
      OMAP_DSS_OVL_MGR_LCD,
      OMAP_DSS_OVL_MGR_TV,
      OMAP_DSS_OVL_MGR_LCD2,
};

enum omap_dss_rotation_type {
      OMAP_DSS_ROT_DMA = 0,
      OMAP_DSS_ROT_VRFB = 1,
};

/* clockwise rotation angle */
enum omap_dss_rotation_angle {
      OMAP_DSS_ROT_0   = 0,
      OMAP_DSS_ROT_90  = 1,
      OMAP_DSS_ROT_180 = 2,
      OMAP_DSS_ROT_270 = 3,
};

enum omap_overlay_caps {
      OMAP_DSS_OVL_CAP_SCALE = 1 << 0,
      OMAP_DSS_OVL_CAP_DISPC = 1 << 1,
};

enum omap_overlay_manager_caps {
      OMAP_DSS_OVL_MGR_CAP_DISPC = 1 << 0,
};

/* RFBI */

00177 struct rfbi_timings {
      int cs_on_time;
      int cs_off_time;
      int we_on_time;
      int we_off_time;
      int re_on_time;
      int re_off_time;
      int we_cycle_time;
      int re_cycle_time;
      int cs_pulse_width;
      int access_time;

      int clk_div;

      u32 tim[5];             /* set by rfbi_convert_timings() */

      int converted;
};

void omap_rfbi_write_command(const void *buf, u32 len);
void omap_rfbi_read_data(void *buf, u32 len);
void omap_rfbi_write_data(const void *buf, u32 len);
void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width,
            u16 x, u16 y,
            u16 w, u16 h);
int omap_rfbi_enable_te(bool enable, unsigned line);
int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode,
                       unsigned hs_pulse_time, unsigned vs_pulse_time,
                       int hs_pol_inv, int vs_pol_inv, int extif_div);

/* DSI */
void dsi_bus_lock(void);
void dsi_bus_unlock(void);
int dsi_vc_dcs_write(int channel, u8 *data, int len);
int dsi_vc_dcs_write_0(int channel, u8 dcs_cmd);
int dsi_vc_dcs_write_1(int channel, u8 dcs_cmd, u8 param);
int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len);
int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen);
int dsi_vc_dcs_read_1(int channel, u8 dcs_cmd, u8 *data);
int dsi_vc_dcs_read_2(int channel, u8 dcs_cmd, u8 *data1, u8 *data2);
int dsi_vc_set_max_rx_packet_size(int channel, u16 len);
int dsi_vc_send_null(int channel);
int dsi_vc_send_bta_sync(int channel);

/* Board specific data */
00222 struct omap_dss_board_info {
      int (*get_last_off_on_transaction_id)(struct device *dev);
      int num_devices;
      struct omap_dss_device **devices;
      struct omap_dss_device *default_device;
};

00229 struct omap_video_timings {
      /* Unit: pixels */
      u16 x_res;
      /* Unit: pixels */
      u16 y_res;
      /* Unit: KHz */
      u32 pixel_clock;
      /* Unit: pixel clocks */
      u16 hsw;    /* Horizontal synchronization pulse width */
      /* Unit: pixel clocks */
      u16 hfp;    /* Horizontal front porch */
      /* Unit: pixel clocks */
      u16 hbp;    /* Horizontal back porch */
      /* Unit: line clocks */
      u16 vsw;    /* Vertical synchronization pulse width */
      /* Unit: line clocks */
      u16 vfp;    /* Vertical front porch */
      /* Unit: line clocks */
      u16 vbp;    /* Vertical back porch */
};

#ifdef CONFIG_OMAP2_DSS_VENC
/* Hardcoded timings for tv modes. Venc only uses these to
 * identify the mode, and does not actually use the configs
 * itself. However, the configs should be something that
 * a normal monitor can also show */
extern const struct omap_video_timings omap_dss_pal_timings;
extern const struct omap_video_timings omap_dss_ntsc_timings;
#endif

00259 struct omap_overlay_info {
      bool enabled;

      u32 paddr;
      void __iomem *vaddr;
      u16 screen_width;
      u16 width;
      u16 height;
      enum omap_color_mode color_mode;
      u8 rotation;
      enum omap_dss_rotation_type rotation_type;
      bool mirror;

      u16 pos_x;
      u16 pos_y;
      u16 out_width;    /* if 0, out_width == width */
      u16 out_height;   /* if 0, out_height == height */
      u8 global_alpha;
      u8 pre_mult_alpha;
};

00280 struct omap_overlay {
      struct kobject kobj;
      struct list_head list;

      /* static fields */
      const char *name;
      int id;
      enum omap_color_mode supported_modes;
      enum omap_overlay_caps caps;

      /* dynamic fields */
      struct omap_overlay_manager *manager;
      struct omap_overlay_info info;

      /* if true, info has been changed, but not applied() yet */
      bool info_dirty;

      int (*set_manager)(struct omap_overlay *ovl,
            struct omap_overlay_manager *mgr);
      int (*unset_manager)(struct omap_overlay *ovl);

      int (*set_overlay_info)(struct omap_overlay *ovl,
                  struct omap_overlay_info *info);
      void (*get_overlay_info)(struct omap_overlay *ovl,
                  struct omap_overlay_info *info);

      int (*wait_for_go)(struct omap_overlay *ovl);
};

00309 struct omap_overlay_manager_info {
      u32 default_color;

      enum omap_dss_trans_key_type trans_key_type;
      u32 trans_key;
      bool trans_enabled;

      bool alpha_enabled;
};

00319 struct omap_overlay_manager {
      struct kobject kobj;
      struct list_head list;

      /* static fields */
      const char *name;
      int id;
      enum omap_overlay_manager_caps caps;
      int num_overlays;
      struct omap_overlay **overlays;
      enum omap_display_type supported_displays;

      /* dynamic fields */
      struct omap_dss_device *device;
      struct omap_overlay_manager_info info;

      bool device_changed;
      /* if true, info has been changed but not applied() yet */
      bool info_dirty;

      int (*set_device)(struct omap_overlay_manager *mgr,
            struct omap_dss_device *dssdev);
      int (*unset_device)(struct omap_overlay_manager *mgr);

      int (*set_manager_info)(struct omap_overlay_manager *mgr,
                  struct omap_overlay_manager_info *info);
      void (*get_manager_info)(struct omap_overlay_manager *mgr,
                  struct omap_overlay_manager_info *info);

      int (*apply)(struct omap_overlay_manager *mgr);
      int (*wait_for_go)(struct omap_overlay_manager *mgr);
      int (*wait_for_vsync)(struct omap_overlay_manager *mgr);

      int (*enable)(struct omap_overlay_manager *mgr);
      int (*disable)(struct omap_overlay_manager *mgr);
};

00356 struct omap_dss_device {
      struct device dev;

      enum omap_display_type type;

      enum omap_channel channel;

      union {
            struct {
                  u8 data_lines;
            } dpi;

            struct {
                  u8 channel;
                  u8 data_lines;
            } rfbi;

            struct {
                  u8 datapairs;
            } sdi;

            struct {
                  u8 clk_lane;
                  u8 clk_pol;
                  u8 data1_lane;
                  u8 data1_pol;
                  u8 data2_lane;
                  u8 data2_pol;

                  struct {
                        u16 regn;
                        u16 regm;
                        u16 regm3;
                        u16 regm4;

                        u16 lp_clk_div;

                        u16 lck_div;
                        u16 pck_div;
                  } div;

                  bool ext_te;
                  u8 ext_te_gpio;
            } dsi;

            struct {
                  enum omap_dss_venc_type type;
                  bool invert_polarity;
            } venc;
      } phy;

      struct {
            struct omap_video_timings timings;

            int acbi;   /* ac-bias pin transitions per interrupt */
            /* Unit: line clocks */
            int acb;    /* ac-bias pin frequency */

            enum omap_panel_config config;
      } panel;

      struct {
            u8 pixel_size;
            struct rfbi_timings rfbi_timings;
      } ctrl;

      int reset_gpio;

      int max_backlight_level;

      const char *name;

      /* used to match device to driver */
      const char *driver_name;

      void *data;

      struct omap_dss_driver *driver;

      /* helper variable for driver suspend/resume */
      bool activate_after_resume;

      enum omap_display_caps caps;

      struct omap_overlay_manager *manager;

      enum omap_dss_display_state state;

      /* platform specific  */
      int (*platform_enable)(struct omap_dss_device *dssdev);
      void (*platform_disable)(struct omap_dss_device *dssdev);
      int (*set_backlight)(struct omap_dss_device *dssdev, int level);
      int (*get_backlight)(struct omap_dss_device *dssdev);
};

00451 struct omap_dss_driver {
      struct device_driver driver;

      int (*probe)(struct omap_dss_device *);
      void (*remove)(struct omap_dss_device *);

      int (*enable)(struct omap_dss_device *display);
      void (*disable)(struct omap_dss_device *display);
      int (*suspend)(struct omap_dss_device *display);
      int (*resume)(struct omap_dss_device *display);
      int (*run_test)(struct omap_dss_device *display, int test);

      int (*set_update_mode)(struct omap_dss_device *dssdev,
                  enum omap_dss_update_mode);
      enum omap_dss_update_mode (*get_update_mode)(
                  struct omap_dss_device *dssdev);

      int (*update)(struct omap_dss_device *dssdev,
                         u16 x, u16 y, u16 w, u16 h);
      int (*sync)(struct omap_dss_device *dssdev);

      int (*enable_te)(struct omap_dss_device *dssdev, bool enable);
      int (*get_te)(struct omap_dss_device *dssdev);

      u8 (*get_rotate)(struct omap_dss_device *dssdev);
      int (*set_rotate)(struct omap_dss_device *dssdev, u8 rotate);

      bool (*get_mirror)(struct omap_dss_device *dssdev);
      int (*set_mirror)(struct omap_dss_device *dssdev, bool enable);

      int (*memory_read)(struct omap_dss_device *dssdev,
                  void *buf, size_t size,
                  u16 x, u16 y, u16 w, u16 h);

      void (*get_resolution)(struct omap_dss_device *dssdev,
                  u16 *xres, u16 *yres);
      int (*get_recommended_bpp)(struct omap_dss_device *dssdev);

      int (*check_timings)(struct omap_dss_device *dssdev,
                  struct omap_video_timings *timings);
      void (*set_timings)(struct omap_dss_device *dssdev,
                  struct omap_video_timings *timings);
      void (*get_timings)(struct omap_dss_device *dssdev,
                  struct omap_video_timings *timings);

      int (*set_wss)(struct omap_dss_device *dssdev, u32 wss);
      u32 (*get_wss)(struct omap_dss_device *dssdev);
};

int omap_dss_register_driver(struct omap_dss_driver *);
void omap_dss_unregister_driver(struct omap_dss_driver *);

int omap_dss_register_device(struct omap_dss_device *);
void omap_dss_unregister_device(struct omap_dss_device *);

void omap_dss_get_device(struct omap_dss_device *dssdev);
void omap_dss_put_device(struct omap_dss_device *dssdev);
#define for_each_dss_dev(d) while ((d = omap_dss_get_next_device(d)) != NULL)
struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from);
struct omap_dss_device *omap_dss_find_device(void *data,
            int (*match)(struct omap_dss_device *dssdev, void *data));

int omap_dss_start_device(struct omap_dss_device *dssdev);
void omap_dss_stop_device(struct omap_dss_device *dssdev);

int omap_dss_get_num_overlay_managers(void);
struct omap_overlay_manager *omap_dss_get_overlay_manager(int num);

int omap_dss_get_num_overlays(void);
struct omap_overlay *omap_dss_get_overlay(int num);

void omapdss_default_get_resolution(struct omap_dss_device *dssdev,
            u16 *xres, u16 *yres);
int omapdss_default_get_recommended_bpp(struct omap_dss_device *dssdev);

typedef void (*omap_dispc_isr_t) (void *arg, u32 mask);
int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask);

int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout);
int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
            unsigned long timeout);

#define to_dss_driver(x) container_of((x), struct omap_dss_driver, driver)
#define to_dss_device(x) container_of((x), struct omap_dss_device, dev)

void omapdss_dsi_vc_enable_hs(int channel, bool enable);
int omapdss_dsi_enable_te(struct omap_dss_device *dssdev, bool enable);

int omap_dsi_prepare_update(struct omap_dss_device *dssdev,
                            u16 *x, u16 *y, u16 *w, u16 *h,
                            bool enlarge_update_area);
int omap_dsi_update(struct omap_dss_device *dssdev,
            int channel,
            u16 x, u16 y, u16 w, u16 h,
            void (*callback)(int, void *), void *data);

int omapdss_dsi_display_enable(struct omap_dss_device *dssdev);
void omapdss_dsi_display_disable(struct omap_dss_device *dssdev);

int omapdss_dpi_display_enable(struct omap_dss_device *dssdev);
void omapdss_dpi_display_disable(struct omap_dss_device *dssdev);
void dpi_set_timings(struct omap_dss_device *dssdev,
                  struct omap_video_timings *timings);
int dpi_check_timings(struct omap_dss_device *dssdev,
                  struct omap_video_timings *timings);

int omapdss_sdi_display_enable(struct omap_dss_device *dssdev);
void omapdss_sdi_display_disable(struct omap_dss_device *dssdev);

int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev);
void omapdss_rfbi_display_disable(struct omap_dss_device *dssdev);
int omap_rfbi_prepare_update(struct omap_dss_device *dssdev,
            u16 *x, u16 *y, u16 *w, u16 *h);
int omap_rfbi_update(struct omap_dss_device *dssdev,
            u16 x, u16 y, u16 w, u16 h,
            void (*callback)(void *), void *data);

#endif

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