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https://github.com/koreader/koreader
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400 lines
16 KiB
C
400 lines
16 KiB
C
#ifndef _EINKFB_H
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#define _EINKFB_H
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#define EINK_1BPP 1
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#define EINK_2BPP 2
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#define EINK_4BPP 4
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#define EINK_8BPP 8
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#define EINK_BPP_MAX EINK_8BPP
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#define EINK_WHITE 0x00 // For whacking all the pixels in a...
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#define EINK_BLACK 0xFF // ...byte (8, 4, 2, or 1) at once.
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// Replace EINK_WHITE & EINK_BLACK with the following macros.
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//
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#define eink_white(b) EINK_WHITE
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#define eink_black(b) EINK_BLACK
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// For pixels (at bytes at a time) other than white/black, the following holds.
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//
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#define eink_pixels(b, p) (p)
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#define EINK_ORIENT_LANDSCAPE 1
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#define EINK_ORIENT_PORTRAIT 0
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#define BPP_SIZE(r, b) (((r)*(b))/8)
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#define BPP_MAX(b) (1 << (b))
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#define U_IN_RANGE(n, m, M) ((((n) == 0) && ((m) == 0)) || (((n) > (m)) && ((n) <= (M))))
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#define IN_RANGE(n, m, M) (((n) >= (m)) && ((n) <= (M)))
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#define ORIENTATION(x, y) (((y) > (x)) ? EINK_ORIENT_PORTRAIT : EINK_ORIENT_LANDSCAPE)
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struct raw_image_t
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{
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int xres, // image's width, in pixels
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yres, // image's height
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bpp; // image's pixel (bit) depth
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__u8 start[]; // actual start of image
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};
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typedef struct raw_image_t raw_image_t;
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struct image_t
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{
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int xres, // image's visual width, in pixels
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xlen, // image's actual width, used for rowbyte & memory size calculations
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yres, // image's height
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bpp; // image's pixel (bit) depth
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__u8 *start; // pointer to start of image
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};
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typedef struct image_t image_t;
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#define INIT_IMAGE_T() { 0, 0, 0, 0, NULL }
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enum splash_screen_type
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{
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// Simple (non-composite) splash screens.
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//
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//splash_screen_powering_off = 0, // Deprecated.
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//splash_screen_powering_on, // Deprecated.
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//splash_screen_powering_off_wireless, // Deprecated.
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//splash_screen_powering_on_wireless, // Deprecated.
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//splash_screen_exit, // Deprecated.
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splash_screen_logo = 5,
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//splash_screen_usb_internal, // Deprecated.
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//splash_screen_usb_external, // Deprecated.
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//splash_screen_usb, // Deprecated.
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//splash_screen_sleep, // Deprecated.
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//splash_screen_update, // Deprecated.
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//num_splash_screens, // Deprecated.
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// Composite splash screens & messages.
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//
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//splash_screen_drivemode_0, // Deprecated.
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//splash_screen_drivemode_1, // Deprecated.
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//splash_screen_drivemode_2, // Deprecated.
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//splash_screen_drivemode_3, // Deprecated.
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splash_screen_power_off_clear_screen = 16,// Message: clear screen and power down controller.
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//splash_screen_screen_saver_picture, // Deprecated.
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splash_screen_shim_picture = 18, // Message: shim wants a picture displayed.
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splash_screen_lowbatt, // Picture: Not composite, post-legacy ordering (Mario only).
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splash_screen_reboot, // Picture: Composite (not used on Fiona).
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splash_screen_update_initial, // Composite software-update screens.
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splash_screen_update_success, //
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splash_screen_update_failure, //
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splash_screen_update_failure_no_wait, //
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splash_screen_repair_needed, // More composite screens.
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splash_screen_boot, //
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splash_screen_invalid = -1
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};
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typedef enum splash_screen_type splash_screen_type;
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// Alias some of the legacy enumerations for Mario.
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//
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#define splash_screen_usb_recovery_util ((splash_screen_type)8) // splash_screen_usb
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struct power_override_t
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{
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u_int cmd;
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u_long arg;
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};
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typedef struct power_override_t power_override_t;
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enum fx_type
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{
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// Deprecated from the HAL, but still supported by the Shim.
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//
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fx_mask = 11, // Only for use with update_area_t's non-NULL buffer which_fx.
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fx_buf_is_mask = 14, // Same as fx_mask, but doesn't require a doubling (i.e., the buffer & mask are the same).
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fx_none = -1, // No legacy-FX to apply.
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// Screen-update FX, supported by HAL.
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//
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fx_flash = 20, // Only for use with update_area_t (for faking a flashing update).
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fx_invert = 21, // Only for use with update_area_t (only inverts output data).
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fx_update_partial = 0, // eInk GU/PU/MU-style (non-flashing) update.
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fx_update_full = 1 // eInk GC-style (slower, flashing) update.
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};
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typedef enum fx_type fx_type;
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// The only valid legacy-FX types for area updates are fx_mask and fx_buf_is_mask.
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//
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#define UPDATE_AREA_FX(f) \
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((fx_mask == (f)) || \
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(fx_buf_is_mask == (f)))
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// The default ("none") for area updates is partial (non-flashing); full (flashing) updates
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// are for FX and such (i.e., explicit completion is desired).
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//
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#define UPDATE_AREA_PART(f) \
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((fx_none == (f)) || \
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(fx_update_partial == (f)))
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#define UPDATE_AREA_FULL(f) \
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(UPDATE_AREA_FX(f) || \
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(fx_update_full == (f)))
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#define UPDATE_AREA_MODE(f) \
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(UPDATE_AREA_FULL(f) ? fx_update_full \
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: fx_update_partial)
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// For use with the FBIO_EINK_UPDATE_DISPLAY ioctl.
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//
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#define UPDATE_PART(f) \
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(fx_update_partial == (f))
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#define UPDATE_FULL(f) \
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(fx_update_full == (f))
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#define UPDATE_MODE(f) \
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(UPDATE_FULL(f) ? fx_update_full \
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: fx_update_partial)
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struct rect_t
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{
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// Note: The bottom-right (x2, y2) coordinate is actually such that (x2 - x1) and (y2 - y1)
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// are xres and yres, respectively, when normally xres and yres would be
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// (x2 - x1) + 1 and (y2 - y1) + 1, respectively.
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//
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int x1, y1, x2, y2;
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};
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typedef struct rect_t rect_t;
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#define INIT_RECT_T() { 0, 0, 0, 0 }
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#define MAX_EXCLUDE_RECTS 8
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struct fx_t
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{
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fx_type update_mode, // Screen-update FX: fx_update_full | fx_update_partial.
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which_fx; // Shim (legacy) FX.
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int num_exclude_rects; // 0..MAX_EXCLUDE_RECTS.
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rect_t exclude_rects[MAX_EXCLUDE_RECTS];
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};
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typedef struct fx_t fx_t;
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#define INIT_FX_T() \
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{ fx_update_partial, fx_none, 0, { \
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INIT_RECT_T(), \
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INIT_RECT_T(), \
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INIT_RECT_T(), \
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INIT_RECT_T(), \
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INIT_RECT_T(), \
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INIT_RECT_T(), \
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INIT_RECT_T(), \
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INIT_RECT_T()} }
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struct update_area_t
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{
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// Note: The bottom-right (x2, y2) coordinate is actually such that (x2 - x1) and (y2 - y1)
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// are xres and yres, respectively, when normally xres and yres would be
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// (x2 - x1) + 1 and (y2 - y1) + 1, respectively.
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//
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int x1, y1, // Top-left...
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x2, y2; // ...bottom-right.
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fx_type which_fx; // FX to use.
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__u8 *buffer; // If NULL, extract from framebuffer, top-left to bottom-right, by rowbytes.
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};
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typedef struct update_area_t update_area_t;
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#define INIT_UPDATE_AREA_T() { 0, 0, 0, 0, fx_none, NULL }
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struct progressbar_xy_t
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{
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int x, y; // Top-left corner of progressbar's position (ignores x for now).
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};
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typedef struct progressbar_xy_t progressbar_xy_t;
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enum screen_saver_t
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{
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screen_saver_invalid = 0,
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screen_saver_valid
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};
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typedef enum screen_saver_t screen_saver_t;
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enum orientation_t
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{
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orientation_portrait,
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orientation_portrait_upside_down,
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orientation_landscape,
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orientation_landscape_upside_down
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};
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typedef enum orientation_t orientation_t;
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#define num_orientations (orientation_landscape_upside_down + 1)
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#define ORIENTATION_PORTRAIT(o) \
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((orientation_portrait == (o)) || (orientation_portrait_upside_down == (o)))
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#define ORIENTATION_LANDSCAPE(o) \
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((orientation_landscape == (o)) || (orientation_landscape_upside_down == (o)))
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#define ORIENTATION_SAME(o1, o2) \
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((ORIENTATION_PORTRAIT(o1) && ORIENTATION_PORTRAIT(o2)) || \
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(ORIENTATION_LANDSCAPE(o1) && ORIENTATION_LANDSCAPE(o2)))
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enum einkfb_events_t
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{
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einkfb_event_update_display = 0, // FBIO_EINK_UPDATE_DISPLAY
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einkfb_event_update_display_area, // FBIO_EINK_UPDATE_DISPLAY_AREA
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einkfb_event_blank_display, // FBIOBLANK (fb.h)
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einkfb_event_rotate_display, // FBIO_EINK_SET_DISPLAY_ORIENTATION
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einkfb_event_null = -1
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};
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typedef enum einkfb_events_t einkfb_events_t;
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struct einkfb_event_t
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{
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einkfb_events_t event; // Not all einkfb_events_t use all of the einkfb_event_t fields.
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fx_type update_mode; // Screen-update FX: fx_update_full | fx_update_partial.
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// Note: The bottom-right (x2, y2) coordinate is actually such that (x2 - x1) and (y2 - y1)
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// are xres and yres, respectively, when normally xres and yres would be
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// (x2 - x1) + 1 and (y2 - y1) + 1, respectively.
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//
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int x1, y1, // Top-left...
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x2, y2; // ...bottom-right.
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orientation_t orientation; // Display rotated into this orientation.
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};
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typedef struct einkfb_event_t einkfb_event_t;
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enum reboot_behavior_t
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{
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reboot_screen_asis,
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reboot_screen_clear,
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reboot_screen_splash
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};
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typedef enum reboot_behavior_t reboot_behavior_t;
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enum progressbar_badge_t
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{
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progressbar_badge_success,
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progressbar_badge_failure,
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progressbar_badge_none
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};
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typedef enum progressbar_badge_t progressbar_badge_t;
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enum sleep_behavior_t
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{
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sleep_behavior_allow_sleep,
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sleep_behavior_prevent_sleep
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};
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typedef enum sleep_behavior_t sleep_behavior_t;
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#define EINK_FRAME_BUFFER "/dev/fb/0"
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#define SIZEOF_EINK_EVENT sizeof(einkfb_event_t)
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#define EINK_EVENTS "/dev/misc/eink_events"
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#define EINK_ROTATE_FILE "/sys/devices/platform/eink_fb.0/send_fake_rotate"
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#define EINK_ROTATE_FILE_LEN 1
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#define ORIENT_PORTRAIT orientation_portrait
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#define ORIENT_PORTRAIT_UPSIDE_DOWN orientation_portrait_upside_down
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#define ORIENT_LANDSCAPE orientation_landscape
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#define ORIENT_LANDSCAPE_UPSIDE_DOWN orientation_landscape_upside_down
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#define ORIENT_ASIS (-1)
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#define EINK_USID_FILE "/var/local/eink/usid"
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#define EINK_CLEAR_SCREEN 0
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#define EINK_CLEAR_BUFFER 1
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#define FBIO_EINK_SCREEN_CLEAR FBIO_EINK_CLEAR_SCREEN, EINK_CLEAR_SCREEN
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#define FBIO_EINK_BUFFER_CLEAR FBIO_EINK_CLEAR_SCREEN, EINK_CLEAR_BUFFER
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#define FBIO_MIN_SCREEN splash_screen_powering_off
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#define FBIO_MAX_SCREEN num_splash_screens
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#define FBIO_SCREEN_IN_RANGE(s) \
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((FBIO_MIN_SCREEN <= (s)) && (FBIO_MAX_SCREEN > (s)))
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#define FBIO_MAGIC_NUMBER 'F'
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// Implemented in the eInk HAL.
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//
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#define FBIO_EINK_UPDATE_DISPLAY _IO(FBIO_MAGIC_NUMBER, 0xdb) // 0x46db (fx_type)
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#define FBIO_EINK_UPDATE_DISPLAY_AREA _IO(FBIO_MAGIC_NUMBER, 0xdd) // 0x46dd (update_area_t *)
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#define FBIO_EINK_RESTORE_DISPLAY _IO(FBIO_MAGIC_NUMBER, 0xef) // 0x46ef (fx_type)
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#define FBIO_EINK_SET_REBOOT_BEHAVIOR _IO(FBIO_MAGIC_NUMBER, 0xe9) // 0x46e9 (reboot_behavior_t)
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#define FBIO_EINK_GET_REBOOT_BEHAVIOR _IO(FBIO_MAGIC_NUMBER, 0xed) // 0x46ed (reboot_behavior_t *)
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#define FBIO_EINK_SET_DISPLAY_ORIENTATION _IO(FBIO_MAGIC_NUMBER, 0xf0) // 0x46f0 (orientation_t)
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#define FBIO_EINK_GET_DISPLAY_ORIENTATION _IO(FBIO_MAGIC_NUMBER, 0xf1) // 0x46f1 (orientation_t *)
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#define FBIO_EINK_SET_SLEEP_BEHAVIOR _IO(FBIO_MAGIC_NUMBER, 0xf2) // 0x46f2 (sleep_behavior_t)
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#define FBIO_EINK_GET_SLEEP_BEHAVIOR _IO(FBIO_MAGIC_NUMBER, 0xf3) // 0x46f3 (sleep_behavior_t *)
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// Implemented in the eInk Shim.
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//
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#define FBIO_EINK_UPDATE_DISPLAY_FX _IO(FBIO_MAGIC_NUMBER, 0xe4) // 0x46e4 (fx_t *)
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#define FBIO_EINK_SPLASH_SCREEN _IO(FBIO_MAGIC_NUMBER, 0xdc) // 0x46dc (splash_screen_type)
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#define FBIO_EINK_SPLASH_SCREEN_SLEEP _IO(FBIO_MAGIC_NUMBER, 0xe0) // 0x46e0 (splash_screen_type)
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#define FBIO_EINK_OFF_CLEAR_SCREEN _IO(FBIO_MAGIC_NUMBER, 0xdf) // 0x46df (EINK_CLEAR_SCREEN || EINK_CLEAR_BUFFER)
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#define FBIO_EINK_CLEAR_SCREEN _IO(FBIO_MAGIC_NUMBER, 0xe1) // 0x46e1 (no args)
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#define FBIO_EINK_POWER_OVERRIDE _IO(FBIO_MAGIC_NUMBER, 0xe3) // 0x46e3 (power_override_t *)
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#define FBIO_EINK_PROGRESSBAR _IO(FBIO_MAGIC_NUMBER, 0xea) // 0x46ea (int: 0..100 -> draw progressbar || !(0..100) -> clear progressbar)
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#define FBIO_EINK_PROGRESSBAR_SET_XY _IO(FBIO_MAGIC_NUMBER, 0xeb) // 0x46eb (progressbar_xy_t *)
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#define FBIO_EINK_PROGRESSBAR_BADGE _IO(FBIO_MAGIC_NUMBER, 0xec) // 0x46ec (progressbar_badge_t);
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#define FBIO_EINK_PROGRESSBAR_BACKGROUND _IO(FBIO_MAGIC_NUMBER, 0xf4) // 0x46f4 (int: EINKFB_WHITE || EINKFB_BLACK)
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// Deprecated from the HAL & Shim.
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//
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//#define FBIO_EINK_UPDATE_DISPLAY_ASYNC _IO(FBIO_MAGIC_NUMBER, 0xde) // 0x46de (fx_type: fx_update_full || fx_update_partial)
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//#define FBIO_EINK_FAKE_PNLCD _IO(FBIO_MAGIC_NUMBER, 0xe8) // 0x46e8 (char *)
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// For use with /proc/eink_fb/update_display.
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//
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#define PROC_EINK_UPDATE_DISPLAY_CLS 0 // FBIO_EINK_CLEAR_SCREEN
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#define PROC_EINK_UPDATE_DISPLAY_PART 1 // FBIO_EINK_UPDATE_DISPLAY(fx_update_partial)
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#define PROC_EINK_UPDATE_DISPLAY_FULL 2 // FBIO_EINK_UPDATE_DISPLAY(fx_update_full)
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#define PROC_EINK_UPDATE_DISPLAY_AREA 3 // FBIO_EINK_UPDATE_DISPLAY_AREA
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//#define PROC_EINK_UPDATE_DISPLAY_REST 4 // FBIO_EINK_RESTORE_SCREEN
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#define PROC_EINK_UPDATE_DISPLAY_SCRN 5 // FBIO_EINK_SPLASH_SCREEN
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#define PROC_EINK_UPDATE_DISPLAY_OVRD 6 // FBIO_EINK_FPOW_OVERRIDE
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#define PROC_EINK_UPDATE_DISPLAY_FX 7 // FBIO_EINK_UPDATE_DISPLAY_FX
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//#define PROC_EINK_UPDATE_DISPLAY_SYNC 8 // FBIO_EINK_SYNC_BUFFERS
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//#define PROC_EINK_UPDATE_DISPLAY_PNLCD 9 // FBIO_EINK_FAKE_PNLCD
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#define PROC_EINK_SET_REBOOT_BEHAVIOR 10 // FBIO_EINK_SET_REBOOT_BEHAVIOR
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#define PROC_EINK_SET_PROGRESSBAR_XY 11 // FBIO_EINK_PROGRESSBAR_SET_XY
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#define PROC_EINK_UPDATE_DISPLAY_SCRN_SLP 12 // FBIO_EINK_SPLASH_SCREEN_SLEEP
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#define PROC_EINK_PROGRESSBAR_BADGE 13 // FBIO_EINK_PROGRESSBAR_BADGE
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#define PROC_EINK_SET_DISPLAY_ORIENTATION 14 // FBIO_EINK_SET_DISPLAY_ORIENTATION
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#define PROC_EINK_RESTORE_DISPLAY 15 // FBIO_EINK_RESTORE_DISPLAY
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#define PROC_EINK_SET_SLEEP_BEHAVIOR 16 // FBIO_EINK_SET_SLEEP_BEHAVIOR
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#define PROC_EINK_PROGRESSBAR_BACKGROUND 17 // FBIO_EINK_PROGRESSBAR_BACKGROUND
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#define PROC_EINK_UPDATE_DISPLAY_WHICH 18 // FBIO_EINK_UPDATE_DISPLAY
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//#define PROC_EINK_FAKE_PNLCD_TEST 100 // Programmatically drive FBIO_EINK_FAKE_PNLCD (not implemented).
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#define PROC_EINK_GRAYSCALE_TEST 101 // Fills display with white-to-black ramp at current bit depth.
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// Inter-module/inter-driver eink ioctl access.
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//
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extern int fiona_eink_ioctl_stub(unsigned int cmd, unsigned long arg);
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#define eink_sys_ioctl(cmd, arg) (get_fb_ioctl() ? (*get_fb_ioctl())((unsigned int)cmd, (unsigned long)arg) \
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: fiona_eink_ioctl_stub((unsigned int)cmd, (unsigned long)arg))
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#endif // _EINKFB_H
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