From b700254aa5150023a13902adbe31839ec4f926cb Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Thu, 25 Mar 2010 18:56:26 +0000 Subject: Add coreboot framebuffer support to libpayload Signed-off-by: Stefan Reinauer Acked-by: Patrick Georgi git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5295 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- payloads/libpayload/Config.in | 8 + payloads/libpayload/arch/i386/coreboot.c | 14 ++ payloads/libpayload/drivers/Makefile.inc | 4 + payloads/libpayload/drivers/video/corebootfb.c | 268 +++++++++++++++++++++++++ payloads/libpayload/drivers/video/geodelx.c | 9 +- payloads/libpayload/drivers/video/vga.c | 21 +- payloads/libpayload/drivers/video/video.c | 19 +- payloads/libpayload/include/coreboot_tables.h | 20 ++ payloads/libpayload/include/i386/arch/endian.h | 5 + payloads/libpayload/include/sysinfo.h | 2 + payloads/libpayload/include/video_console.h | 6 +- 11 files changed, 359 insertions(+), 17 deletions(-) create mode 100644 payloads/libpayload/drivers/video/corebootfb.c (limited to 'payloads') diff --git a/payloads/libpayload/Config.in b/payloads/libpayload/Config.in index e0add21f4d..ae071456bf 100644 --- a/payloads/libpayload/Config.in +++ b/payloads/libpayload/Config.in @@ -116,6 +116,14 @@ config GEODELX_VIDEO_CONSOLE depends on VIDEO_CONSOLE default n +config COREBOOT_VIDEO_CONSOLE + bool "coreboot video console driver" + depends on VIDEO_CONSOLE && !GEODELX_VIDEO_CONSOLE + default n + help + Say Y here if coreboot switched to a graphics mode and + your payload wants to use it. + config PC_KEYBOARD bool "Allow input from a PC keyboard" default y diff --git a/payloads/libpayload/arch/i386/coreboot.c b/payloads/libpayload/arch/i386/coreboot.c index 95d8f16f76..8441903e7c 100644 --- a/payloads/libpayload/arch/i386/coreboot.c +++ b/payloads/libpayload/arch/i386/coreboot.c @@ -95,6 +95,13 @@ static void cb_parse_checksum(unsigned char *ptr, struct sysinfo_t *info) } #endif +#ifdef CONFIG_COREBOOT_VIDEO_CONSOLE +static void cb_parse_framebuffer(unsigned char *ptr, struct sysinfo_t *info) +{ + info->framebuffer = (struct cb_framebuffer *)ptr; +} +#endif + static int cb_parse_header(void *addr, int len, struct sysinfo_t *info) { struct cb_header *header; @@ -146,6 +153,13 @@ static int cb_parse_header(void *addr, int len, struct sysinfo_t *info) case CB_TAG_OPTION_CHECKSUM: cb_parse_checksum(ptr, info); break; +#endif +#ifdef CONFIG_COREBOOT_VIDEO_CONSOLE + // FIXME we should warn on serial if coreboot set up a + // framebuffer buf the payload does not know about it. + case CB_TAG_FRAMEBUFFER: + cb_parse_framebuffer(ptr, info); + break; #endif } diff --git a/payloads/libpayload/drivers/Makefile.inc b/payloads/libpayload/drivers/Makefile.inc index 07f50299bd..708c36d45e 100644 --- a/payloads/libpayload/drivers/Makefile.inc +++ b/payloads/libpayload/drivers/Makefile.inc @@ -48,6 +48,10 @@ TARGETS-$(CONFIG_VGA_VIDEO_CONSOLE) += drivers/video/vga.o TARGETS-$(CONFIG_GEODELX_VIDEO_CONSOLE) += drivers/video/geodelx.o TARGETS-$(CONFIG_GEODELX_VIDEO_CONSOLE) += drivers/video/font8x16.o +# coreboot generic framebuffer driver +TARGETS-$(CONFIG_COREBOOT_VIDEO_CONSOLE) += drivers/video/corebootfb.o +TARGETS-$(CONFIG_COREBOOT_VIDEO_CONSOLE) += drivers/video/font8x16.o + # USB stack TARGETS-$(CONFIG_USB) += drivers/usb/usbinit.o TARGETS-$(CONFIG_USB) += drivers/usb/usb.o diff --git a/payloads/libpayload/drivers/video/corebootfb.c b/payloads/libpayload/drivers/video/corebootfb.c new file mode 100644 index 0000000000..190d3f0d4b --- /dev/null +++ b/payloads/libpayload/drivers/video/corebootfb.c @@ -0,0 +1,268 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * Copyright (C) 2010 coresystems GmbH + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include +#include +#include +#include +#include +#include "font8x16.h" + +struct video_console coreboot_video_console; + +static unsigned int cursor_x = 0, cursor_y = 0, cursor_en = 0; + +/* color definitions for the 16 standard colors */ + +#define VGA_COLOR_DEFAULT 7 +static const u32 vga_colors[] = { + // BLUE | GREEN | RED + (0x00 << 16) | (0x00 << 8) | 0x00, + (0xAA << 16) | (0x00 << 8) | 0x00, + (0x00 << 16) | (0xAA << 8) | 0x00, + (0xAA << 16) | (0x55 << 8) | 0x00, + (0x00 << 16) | (0x00 << 8) | 0xAA, + (0xAA << 16) | (0x00 << 8) | 0xAA, + (0x00 << 16) | (0xAA << 8) | 0xAA, + (0xAA << 16) | (0xAA << 8) | 0xAA, + (0x55 << 16) | (0x55 << 8) | 0x55, + (0xFF << 16) | (0x55 << 8) | 0x55, + (0x55 << 16) | (0xFF << 8) | 0x55, + (0xFF << 16) | (0xFF << 8) | 0x55, + (0x55 << 16) | (0x55 << 8) | 0xFF, + (0xFF << 16) | (0x55 << 8) | 0xFF, + (0x55 << 16) | (0xFF << 8) | 0xFF, + (0xFF << 16) | (0xFF << 8) | 0xFF, +}; + +/* Addresses for the various components */ +static unsigned long fbinfo; +static unsigned long fbaddr; +static unsigned long chars; + +#define FI ((struct cb_framebuffer *) phys_to_virt(fbinfo)) +#define FB ((unsigned char *) phys_to_virt(fbaddr)) +#define CHARS ((unsigned short *) phys_to_virt(chars)) + +static void corebootfb_scroll_up(void) +{ + unsigned char *dst = FB; + unsigned char *src = FB + (FI->bytes_per_line * FONT_HEIGHT); + int y; + + /* Scroll all lines up */ + for(y = 0; y < FI->y_resolution - FONT_HEIGHT; y++) { + memcpy(dst, src, FI->x_resolution * (FI->bits_per_pixel >> 3)); + + dst += FI->bytes_per_line; + src += FI->bytes_per_line; + } + + /* Erase last line */ + dst = FB + (FI->y_resolution - FONT_HEIGHT) * FI->bytes_per_line; + + for(; y < FI->y_resolution; y++) { + memset(dst, 0, FI->x_resolution * (FI->bits_per_pixel >> 3)); + dst += FI->bytes_per_line; + } + + /* And update the char buffer */ + dst = (unsigned char *) CHARS; + src = (unsigned char *) (CHARS + coreboot_video_console.columns); + memcpy(dst, src, coreboot_video_console.columns * + (coreboot_video_console.rows - 1) * 2); + int column; + for (column = 0; column < coreboot_video_console.columns; column++) + CHARS[(coreboot_video_console.rows - 1) * coreboot_video_console.columns + column] = (VGA_COLOR_DEFAULT << 8); + + cursor_y--; +} + +static void corebootfb_clear(void) +{ + int row, column; + unsigned char *ptr = FB; + + /* Clear the screen */ + for(row = 0; row < FI->y_resolution; row++) { + memset(ptr, 0, FI->x_resolution * (FI->bits_per_pixel >> 3)); + ptr += FI->bytes_per_line; + } + + /* And update the char buffer */ + for(row = 0; row < coreboot_video_console.rows; row++) + for (column = 0; column < coreboot_video_console.columns; column++) + CHARS[row * coreboot_video_console.columns + column] = (VGA_COLOR_DEFAULT << 8); +} + +static void corebootfb_putchar(u8 row, u8 col, unsigned int ch) +{ + unsigned char *dst; + unsigned char *glyph = font8x16 + ((ch & 0xFF) * FONT_HEIGHT); + + unsigned char bg = (ch >> 12) & 0xF; + unsigned char fg = (ch >> 8) & 0xF; + u32 fgval = 0, bgval = 0; + u16 *dst16; + u32 *dst32; + + int x, y; + + if (FI->bits_per_pixel > 8) { + bgval = ((((vga_colors[bg] >> 0) & 0xff) >> (8 - FI->blue_mask_size)) << FI->blue_mask_pos) | + ((((vga_colors[bg] >> 8) & 0xff) >> (8 - FI->green_mask_size)) << FI->green_mask_pos) | + ((((vga_colors[bg] >> 16) & 0xff) >> (8 - FI->red_mask_size)) << FI->red_mask_pos); + fgval = ((((vga_colors[fg] >> 0) & 0xff) >> (8 - FI->blue_mask_size)) << FI->blue_mask_pos) | + ((((vga_colors[fg] >> 8) & 0xff) >> (8 - FI->green_mask_size)) << FI->green_mask_pos) | + ((((vga_colors[fg] >> 16) & 0xff) >> (8 - FI->red_mask_size)) << FI->red_mask_pos); + } + + + dst = FB + ((row * FONT_HEIGHT) * FI->bytes_per_line); + dst += (col * FONT_WIDTH * (FI->bits_per_pixel >> 3)); + + for(y = 0; y < FONT_HEIGHT; y++) { + for(x = FONT_WIDTH - 1; x >= 0; x--) { + + switch (FI->bits_per_pixel) { + case 8: /* Indexed */ + dst[(FONT_WIDTH - x) * (FI->bits_per_pixel >> 3)] = (*glyph & (1 << x)) ? fg : bg; + break; + case 16: /* 16 bpp */ + dst16 = (u16 *)(dst + (FONT_WIDTH - x) * (FI->bits_per_pixel >> 3)); + *dst16 = (*glyph & (1 << x)) ? fgval : bgval; + break; + case 24: /* 24 bpp */ + if (*glyph & (1 << x)) { + dst[(FONT_WIDTH - x) * (FI->bits_per_pixel >> 3) + 0] = fgval & 0xff; + dst[(FONT_WIDTH - x) * (FI->bits_per_pixel >> 3) + 1] = (fgval >> 8) & 0xff; + dst[(FONT_WIDTH - x) * (FI->bits_per_pixel >> 3) + 2] = (fgval >> 16) & 0xff; + } else { + dst[(FONT_WIDTH - x) * (FI->bits_per_pixel >> 3) + 0] = bgval & 0xff; + dst[(FONT_WIDTH - x) * (FI->bits_per_pixel >> 3) + 1] = (bgval >> 8) & 0xff; + dst[(FONT_WIDTH - x) * (FI->bits_per_pixel >> 3) + 2] = (bgval >> 16) & 0xff; + } + break; + case 32: /* 32 bpp */ + dst32 = (u32 *)(dst + (FONT_WIDTH - x) * (FI->bits_per_pixel >> 3)); + *dst32 = (*glyph & (1 << x)) ? fgval : bgval; + break; + } + } + + dst += FI->bytes_per_line; + glyph++; + } +} + +static void corebootfb_putc(u8 row, u8 col, unsigned int ch) +{ + CHARS[row * coreboot_video_console.columns + col] = ch; + corebootfb_putchar(row, col, ch); +} + +static void corebootfb_update_cursor(void) +{ + int ch, paint; + if(cursor_en) { + ch = CHARS[cursor_y * coreboot_video_console.columns + cursor_x]; + paint = (ch & 0xff) | ((ch<<4) & 0xf000) | ((ch >> 4) & 0x0f00); + } else { + paint = CHARS[cursor_y * coreboot_video_console.columns + cursor_x]; + } + + if (cursor_y >= 0 && cursor_y < coreboot_video_console.rows) + corebootfb_putchar(cursor_y, cursor_x, paint); +} + +static void corebootfb_enable_cursor(int state) +{ + cursor_en = state; + corebootfb_update_cursor(); +} + +static void corebootfb_get_cursor(unsigned int *x, unsigned int *y, unsigned int *en) +{ + *x = cursor_x; + *y = cursor_y; + *en = cursor_en; +} + +static void corebootfb_set_cursor(unsigned int x, unsigned int y) +{ + int cursor_remember = cursor_en; + if (cursor_remember) + corebootfb_enable_cursor(0); + + cursor_x = x; + cursor_y = y; + + if (cursor_remember) + corebootfb_enable_cursor(1); +} + +static int corebootfb_init(void) +{ + if (lib_sysinfo.framebuffer == NULL) + return -1; + + fbinfo = (unsigned long)lib_sysinfo.framebuffer; + + fbaddr = FI->physical_address; + + coreboot_video_console.columns = FI->x_resolution / FONT_WIDTH; + coreboot_video_console.rows = FI->y_resolution / FONT_HEIGHT; + + chars = (unsigned long) malloc(coreboot_video_console.rows * + coreboot_video_console.columns * 2); + + // clear boot splash screen if there is one. + corebootfb_clear(); + + corebootfb_set_cursor(0, 0); + corebootfb_enable_cursor(1); + + return 0; +} + +struct video_console coreboot_video_console = { + .init = corebootfb_init, + .putc = corebootfb_putc, + .clear = corebootfb_clear, + .scroll_up = corebootfb_scroll_up, + + .get_cursor = corebootfb_get_cursor, + .set_cursor = corebootfb_set_cursor, + .enable_cursor = corebootfb_enable_cursor, + + .columns = 80, + .rows = 25 +}; + diff --git a/payloads/libpayload/drivers/video/geodelx.c b/payloads/libpayload/drivers/video/geodelx.c index cb1c4be40b..382ae4943e 100644 --- a/payloads/libpayload/drivers/video/geodelx.c +++ b/payloads/libpayload/drivers/video/geodelx.c @@ -287,5 +287,12 @@ struct video_console geodelx_video_console = { .init = geodelx_init, .putc = geodelx_putc, .clear = geodelx_clear, - .scroll_up = geodelx_scroll_up + .scroll_up = geodelx_scroll_up, + + /* TODO .get_cursor */ + /* TODO .set_cursor */ + /* TODO .enable_cursor */ + + .columns = 80, + .rows = 25 }; diff --git a/payloads/libpayload/drivers/video/vga.c b/payloads/libpayload/drivers/video/vga.c index 5858e95c32..d5e548afcf 100644 --- a/payloads/libpayload/drivers/video/vga.c +++ b/payloads/libpayload/drivers/video/vga.c @@ -30,13 +30,15 @@ #include #include +struct video_console vga_video_console; + #define VGA_COLOR_WHITE 7 #define CRTC_INDEX 0x3d4 #define CRTC_DATA 0x3d5 #define VIDEO(_r, _c)\ - ((u16 *) (phys_to_virt(0xB8000) + ((_r) * (VIDEO_COLS * 2)) + ((_c) * 2))) + ((u16 *) (phys_to_virt(0xB8000) + ((_r) * (vga_video_console.columns * 2)) + ((_c) * 2))) static u8 crtc_read(u8 index) { @@ -56,8 +58,8 @@ static void vga_get_cursor(unsigned int *x, unsigned int *y, unsigned int *en) addr = ((unsigned int) crtc_read(0x0E)) << 8; addr += crtc_read(0x0F); - *x = addr % VIDEO_COLS; - *y = addr / VIDEO_COLS; + *x = addr % vga_video_console.columns; + *y = addr / vga_video_console.columns; *en = !(crtc_read(0x0A) & (1 << 5)); } @@ -66,7 +68,7 @@ static void vga_set_cursor(unsigned int x, unsigned int y) { unsigned int addr; - addr = x + (VIDEO_COLS * y); + addr = x + (vga_video_console.columns * y); crtc_write(addr >> 8, 0x0E); crtc_write(addr, 0x0F); } @@ -89,7 +91,7 @@ static void vga_clear_line(u8 row, u8 ch, u8 attr) int col; u16 *ptr = VIDEO(row, 0); - for(col = 0; col < VIDEO_COLS; col++) + for(col = 0; col < vga_video_console.columns; col++) ptr[col] = ((attr & 0xFF) << 8) | (ch & 0xFF); } @@ -99,16 +101,16 @@ static void vga_scroll_up(void) u16 *dst = VIDEO(0,0); int i; - for(i = 0; i < (VIDEO_ROWS - 1) * VIDEO_COLS; i++) + for(i = 0; i < (vga_video_console.rows - 1) * vga_video_console.columns; i++) *dst++ = *src++; - vga_clear_line(VIDEO_ROWS - 1, ' ', VGA_COLOR_WHITE); + vga_clear_line(vga_video_console.rows - 1, ' ', VGA_COLOR_WHITE); } static void vga_fill(u8 ch, u8 attr) { u8 row; - for(row = 0; row < VIDEO_ROWS; row++) + for(row = 0; row < vga_video_console.rows; row++) vga_clear_line(row, ch, attr); } @@ -151,4 +153,7 @@ struct video_console vga_video_console = { .get_cursor = vga_get_cursor, .set_cursor = vga_set_cursor, .enable_cursor = vga_enable_cursor, + + .columns = 80, + .rows = 25 }; diff --git a/payloads/libpayload/drivers/video/video.c b/payloads/libpayload/drivers/video/video.c index 1eadce61cb..13606d5eb3 100644 --- a/payloads/libpayload/drivers/video/video.c +++ b/payloads/libpayload/drivers/video/video.c @@ -35,6 +35,10 @@ extern struct video_console geodelx_video_console; #endif +#ifdef CONFIG_COREBOOT_VIDEO_CONSOLE +extern struct video_console coreboot_video_console; +#endif + #ifdef CONFIG_VGA_VIDEO_CONSOLE extern struct video_console vga_video_console; #endif @@ -44,6 +48,9 @@ static struct video_console *console_list[] = #ifdef CONFIG_GEODELX_VIDEO_CONSOLE &geodelx_video_console, #endif +#ifdef CONFIG_COREBOOT_VIDEO_CONSOLE + &coreboot_video_console, +#endif #ifdef CONFIG_VGA_VIDEO_CONSOLE &vga_video_console, #endif @@ -66,12 +73,12 @@ static void video_console_fixup_cursor(void) if (cursory < 0) cursory = 0; - if (cursorx >= VIDEO_COLS) { + if (cursorx >= console->columns) { cursorx = 0; cursory++; } - while(cursory >= VIDEO_ROWS) { + while(cursory >= console->rows) { console->scroll_up(); cursory--; } @@ -112,10 +119,12 @@ void video_console_putc(u8 row, u8 col, unsigned int ch) void video_console_putchar(unsigned int ch) { /* replace black-on-black with light-gray-on-black. - do it here, instead of in libc/console.c */ + * do it here, instead of in libc/console.c + */ if ((ch & 0xFF00) == 0) { ch |= 0x0700; } + switch(ch & 0xFF) { case '\r': cursorx = 0; @@ -129,12 +138,12 @@ void video_console_putchar(unsigned int ch) cursorx--; if (cursorx < 0) { cursory--; - cursorx = VIDEO_COLS; + cursorx = console->columns; } break; case '\t': - while(cursorx % 8 && cursorx < VIDEO_COLS) { + while(cursorx % 8 && cursorx < console->columns) { if (console) console->putc(cursory, cursorx, (ch & 0xFF00) | ' '); diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h index 768bb34ec1..04b8cef4c1 100644 --- a/payloads/libpayload/include/coreboot_tables.h +++ b/payloads/libpayload/include/coreboot_tables.h @@ -136,6 +136,26 @@ struct cb_forward { u64 forward; }; +#define CB_TAG_FRAMEBUFFER 0x0012 +struct cb_framebuffer { + u32 tag; + u32 size; + + u64 physical_address; + u32 x_resolution; + u32 y_resolution; + u32 bytes_per_line; + u8 bits_per_pixel; + u8 red_mask_pos; + u8 red_mask_size; + u8 green_mask_pos; + u8 green_mask_size; + u8 blue_mask_pos; + u8 blue_mask_size; + u8 reserved_mask_pos; + u8 reserved_mask_size; +}; + #define CB_TAG_CMOS_OPTION_TABLE 0x00c8 struct cb_cmos_option_table { u32 tag; diff --git a/payloads/libpayload/include/i386/arch/endian.h b/payloads/libpayload/include/i386/arch/endian.h index a50ac1fede..3164376a12 100644 --- a/payloads/libpayload/include/i386/arch/endian.h +++ b/payloads/libpayload/include/i386/arch/endian.h @@ -38,4 +38,9 @@ (( (in) & 0xFF0000) >> 8) | (( (in) & 0xFF000000) >> 24)) #define ntohll(in) (((u64) ntohl( (in) & 0xFFFFFFFF) << 32) | ((u64) ntohl( (in) >> 32))) + +#define htonw(in) ntohw(in) +#define htonl(in) ntohl(in) +#define htonll(in) ntohll(in) + #endif diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h index 3b3a1563fd..518f021ce3 100644 --- a/payloads/libpayload/include/sysinfo.h +++ b/payloads/libpayload/include/sysinfo.h @@ -50,6 +50,8 @@ struct sysinfo_t { u32 cmos_range_end; u32 cmos_checksum_location; + struct cb_framebuffer *framebuffer; + unsigned long *mbtable; /** Pointer to the multiboot table */ }; diff --git a/payloads/libpayload/include/video_console.h b/payloads/libpayload/include/video_console.h index 1646ec6056..4894da4dfd 100644 --- a/payloads/libpayload/include/video_console.h +++ b/payloads/libpayload/include/video_console.h @@ -30,9 +30,6 @@ #ifndef _VIDEO_CONSOLE_H #define _VIDEO_CONSOLE_H -#define VIDEO_ROWS 25 -#define VIDEO_COLS 80 - struct video_console { int (*init)(void); void (*putc)(u8, u8, unsigned int); @@ -42,6 +39,9 @@ struct video_console { void (*get_cursor)(unsigned int *, unsigned int *, unsigned int *); void (*set_cursor)(unsigned int, unsigned int); void (*enable_cursor)(int); + + unsigned int rows; + unsigned int columns; }; #endif -- cgit v1.2.3