diff options
| -rw-r--r-- | payloads/libpayload/drivers/video/graphics.c | 39 | ||||
| -rw-r--r-- | payloads/libpayload/include/coreboot_tables.h | 9 |
2 files changed, 44 insertions, 4 deletions
diff --git a/payloads/libpayload/drivers/video/graphics.c b/payloads/libpayload/drivers/video/graphics.c index 85a8642c72..6b5664bbcf 100644 --- a/payloads/libpayload/drivers/video/graphics.c +++ b/payloads/libpayload/drivers/video/graphics.c @@ -129,8 +129,30 @@ static inline void set_pixel(struct vector *coord, uint32_t color) { const int bpp = fbinfo->bits_per_pixel; const int bpl = fbinfo->bytes_per_line; + struct vector rcoord; int i; - uint8_t * const pixel = fbaddr + coord->y * bpl + coord->x * bpp / 8; + + switch (fbinfo->orientation) { + case CB_FB_ORIENTATION_NORMAL: + default: + rcoord.x = coord->x; + rcoord.y = coord->y; + break; + case CB_FB_ORIENTATION_BOTTOM_UP: + rcoord.x = screen.size.width - 1 - coord->x; + rcoord.y = screen.size.height - 1 - coord->y; + break; + case CB_FB_ORIENTATION_LEFT_UP: + rcoord.x = coord->y; + rcoord.y = screen.size.width - 1 - coord->x; + break; + case CB_FB_ORIENTATION_RIGHT_UP: + rcoord.x = screen.size.height - 1 - coord->y; + rcoord.y = coord->x; + break; + } + + uint8_t * const pixel = fbaddr + rcoord.y * bpl + rcoord.x * bpp / 8; for (i = 0; i < bpp / 8; i++) pixel[i] = (color >> (i * 8)); } @@ -152,8 +174,17 @@ static int cbgfx_init(void) if (!fbaddr) return CBGFX_ERROR_FRAMEBUFFER_ADDR; - screen.size.width = fbinfo->x_resolution; - screen.size.height = fbinfo->y_resolution; + switch (fbinfo->orientation) { + default: /* Normal or rotated 180 degrees. */ + screen.size.width = fbinfo->x_resolution; + screen.size.height = fbinfo->y_resolution; + break; + case CB_FB_ORIENTATION_LEFT_UP: /* 90 degree rotation. */ + case CB_FB_ORIENTATION_RIGHT_UP: + screen.size.width = fbinfo->y_resolution; + screen.size.height = fbinfo->x_resolution; + break; + } screen.offset.x = 0; screen.offset.y = 0; @@ -242,7 +273,7 @@ int clear_screen(const struct rgb_color *rgb) * We assume that for 32bpp the high byte gets ignored anyway. */ if ((((color >> 8) & 0xff) == (color & 0xff)) && (bpp == 16 || (((color >> 16) & 0xff) == (color & 0xff)))) { - memset(fbaddr, color & 0xff, screen.size.height * bpl); + memset(fbaddr, color & 0xff, fbinfo->y_resolution * bpl); } else { for (p.y = 0; p.y < screen.size.height; p.y++) for (p.x = 0; p.x < screen.size.width; p.x++) diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h index 9b69a6d3d3..bf2cf022d1 100644 --- a/payloads/libpayload/include/coreboot_tables.h +++ b/payloads/libpayload/include/coreboot_tables.h @@ -189,6 +189,14 @@ struct cb_forward { u64 forward; }; +/* Panel orientation, matches drm_connector.h in the Linux kernel. */ +enum cb_fb_orientation { + CB_FB_ORIENTATION_NORMAL = 0, + CB_FB_ORIENTATION_BOTTOM_UP = 1, + CB_FB_ORIENTATION_LEFT_UP = 2, + CB_FB_ORIENTATION_RIGHT_UP = 3, +}; + struct cb_framebuffer { u32 tag; u32 size; @@ -206,6 +214,7 @@ struct cb_framebuffer { u8 blue_mask_size; u8 reserved_mask_pos; u8 reserved_mask_size; + u8 orientation; }; #define CB_GPIO_ACTIVE_LOW 0 |