diff options
Diffstat (limited to 'grub-core/video/sm712.c')
| -rw-r--r-- | grub-core/video/sm712.c | 818 |
1 files changed, 818 insertions, 0 deletions
diff --git a/grub-core/video/sm712.c b/grub-core/video/sm712.c new file mode 100644 index 0000000..10c46eb --- /dev/null +++ b/grub-core/video/sm712.c @@ -0,0 +1,818 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2005,2006,2007,2008,2009,2010 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#define grub_video_render_target grub_video_fbrender_target + +#if !defined (TEST) && !defined(GENINIT) +#include <grub/err.h> +#include <grub/types.h> +#include <grub/dl.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/video.h> +#include <grub/video_fb.h> +#include <grub/pci.h> +#include <grub/vga.h> +#include <grub/cache.h> +#else +typedef unsigned char grub_uint8_t; +typedef unsigned short grub_uint16_t; +typedef unsigned int grub_uint32_t; +typedef int grub_err_t; +#include <grub/vgaregs.h> +#include <stdio.h> +#define ARRAY_SIZE(array) (sizeof (array) / sizeof (array[0])) +#endif + +#include "sm712_init.c" + +#pragma GCC diagnostic ignored "-Wcast-align" + +#define GRUB_SM712_TOTAL_MEMORY_SPACE 0x700400 +#define GRUB_SM712_REG_BASE 0x700000 +#define GRUB_SM712_PCIID 0x0712126f + +enum + { + GRUB_SM712_SR_TV_CONTROL = 0x65, + GRUB_SM712_SR_RAM_LUT = 0x66, + GRUB_SM712_SR_CLOCK_CONTROL1 = 0x68, + GRUB_SM712_SR_CLOCK_CONTROL2 = 0x69, + GRUB_SM712_SR_VCLK_NUM = 0x6c, + GRUB_SM712_SR_VCLK_DENOM = 0x6d, + GRUB_SM712_SR_VCLK2_NUM = 0x6e, + GRUB_SM712_SR_VCLK2_DENOM = 0x6f, + GRUB_SM712_SR_POPUP_ICON_LOW = 0x80, + GRUB_SM712_SR_POPUP_ICON_HIGH = 0x81, + GRUB_SM712_SR_POPUP_ICON_CTRL = 0x82, + GRUB_SM712_SR_POPUP_ICON_COLOR1 = 0x84, + GRUB_SM712_SR_POPUP_ICON_COLOR2 = 0x85, + GRUB_SM712_SR_POPUP_ICON_COLOR3 = 0x86, + + GRUB_SM712_SR_HW_CURSOR_UPPER_LEFT_X_LOW = 0x88, + GRUB_SM712_SR_HW_CURSOR_UPPER_LEFT_X_HIGH = 0x89, + GRUB_SM712_SR_HW_CURSOR_UPPER_LEFT_Y_LOW = 0x8a, + GRUB_SM712_SR_HW_CURSOR_UPPER_LEFT_Y_HIGH = 0x8b, + GRUB_SM712_SR_HW_CURSOR_FG_COLOR = 0x8c, + GRUB_SM712_SR_HW_CURSOR_BG_COLOR = 0x8d, + + GRUB_SM712_SR_POPUP_ICON_X_LOW = 0x90, + GRUB_SM712_SR_POPUP_ICON_X_HIGH = 0x91, + GRUB_SM712_SR_POPUP_ICON_Y_LOW = 0x92, + GRUB_SM712_SR_POPUP_ICON_Y_HIGH = 0x93, + GRUB_SM712_SR_PANEL_HW_VIDEO_CONTROL = 0xa0, + GRUB_SM712_SR_PANEL_HW_VIDEO_COLOR_KEY_LOW = 0xa1, + GRUB_SM712_SR_PANEL_HW_VIDEO_COLOR_KEY_HIGH = 0xa2, + GRUB_SM712_SR_PANEL_HW_VIDEO_COLOR_KEY_MASK_LOW = 0xa3, + GRUB_SM712_SR_PANEL_HW_VIDEO_COLOR_KEY_MASK_HIGH = 0xa4, + GRUB_SM712_SR_PANEL_HW_VIDEO_RED_CONSTANT = 0xa5, + GRUB_SM712_SR_PANEL_HW_VIDEO_GREEN_CONSTANT = 0xa6, + GRUB_SM712_SR_PANEL_HW_VIDEO_BLUE_CONSTANT = 0xa7, + GRUB_SM712_SR_PANEL_HW_VIDEO_TOP_BOUNDARY = 0xa8, + GRUB_SM712_SR_PANEL_HW_VIDEO_LEFT_BOUNDARY = 0xa9, + GRUB_SM712_SR_PANEL_HW_VIDEO_BOTTOM_BOUNDARY = 0xaa, + GRUB_SM712_SR_PANEL_HW_VIDEO_RIGHT_BOUNDARY = 0xab, + GRUB_SM712_SR_PANEL_HW_VIDEO_TOP_LEFT_OVERFLOW_BOUNDARY = 0xac, + GRUB_SM712_SR_PANEL_HW_VIDEO_BOTTOM_RIGHT_OVERFLOW_BOUNDARY = 0xad, + GRUB_SM712_SR_PANEL_HW_VIDEO_VERTICAL_STRETCH_FACTOR = 0xae, + GRUB_SM712_SR_PANEL_HW_VIDEO_HORIZONTAL_STRETCH_FACTOR = 0xaf, + }; +enum + { + GRUB_SM712_SR_TV_CRT_SRAM = 0x00, + GRUB_SM712_SR_TV_LCD_SRAM = 0x08 + }; +enum + { + GRUB_SM712_SR_TV_ALT_CLOCK = 0x00, + GRUB_SM712_SR_TV_FREE_RUN_CLOCK = 0x04 + }; +enum + { + GRUB_SM712_SR_TV_CLOCK_CKIN_NTSC = 0x00, + GRUB_SM712_SR_TV_CLOCK_REFCLK_PAL = 0x04 + }; +enum + { + GRUB_SM712_SR_TV_HSYNC = 0x00, + GRUB_SM712_SR_TV_COMPOSITE_HSYNC = 0x01 + }; +enum + { + GRUB_SM712_SR_RAM_LUT_NORMAL = 0, + GRUB_SM712_SR_RAM_LUT_LCD_RAM_OFF = 0x80, + GRUB_SM712_SR_RAM_LUT_CRT_RAM_OFF = 0x40, + GRUB_SM712_SR_RAM_LUT_LCD_RAM_NO_WRITE = 0x20, + GRUB_SM712_SR_RAM_LUT_CRT_RAM_NO_WRITE = 0x10, + GRUB_SM712_SR_RAM_LUT_CRT_8BIT = 0x08, + GRUB_SM712_SR_RAM_LUT_CRT_GAMMA = 0x04 + }; + +enum + { + GRUB_SM712_SR_CLOCK_CONTROL1_VCLK_FROM_CCR = 0x40, + GRUB_SM712_SR_CLOCK_CONTROL1_8DOT_CLOCK = 0x10, + }; + +enum + { + GRUB_SM712_SR_CLOCK_CONTROL2_PROGRAM_VCLOCK = 0x03 + }; + +#define GRUB_SM712_SR_POPUP_ICON_HIGH_MASK 0x7 +#define GRUB_SM712_SR_POPUP_ICON_HIGH_HW_CURSOR_EN 0x80 + enum + { + GRUB_SM712_SR_POPUP_ICON_CTRL_DISABLED = 0, + GRUB_SM712_SR_POPUP_ICON_CTRL_ZOOM_ENABLED = 0x40, + GRUB_SM712_SR_POPUP_ICON_CTRL_ENABLED = 0x80 + }; +#define RGB332_BLACK 0 +#define RGB332_WHITE 0xff + + enum + { + GRUB_SM712_CR_OVERFLOW_INTERLACE = 0x30, + GRUB_SM712_CR_INTERLACE_RETRACE = 0x31, + GRUB_SM712_CR_TV_VDISPLAY_START = 0x32, + GRUB_SM712_CR_TV_VDISPLAY_END_HIGH = 0x33, + GRUB_SM712_CR_TV_VDISPLAY_END_LOW = 0x34, + GRUB_SM712_CR_DDA_CONTROL_LOW = 0x35, + GRUB_SM712_CR_DDA_CONTROL_HIGH = 0x36, + GRUB_SM712_CR_TV_EQUALIZER = 0x38, + GRUB_SM712_CR_TV_SERRATION = 0x39, + GRUB_SM712_CR_HSYNC_CTRL = 0x3a, + GRUB_SM712_CR_DEBUG = 0x3c, + GRUB_SM712_CR_SHADOW_VGA_HTOTAL = 0x40, + GRUB_SM712_CR_SHADOW_VGA_HBLANK_START = 0x41, + GRUB_SM712_CR_SHADOW_VGA_HBLANK_END = 0x42, + GRUB_SM712_CR_SHADOW_VGA_HRETRACE_START = 0x43, + GRUB_SM712_CR_SHADOW_VGA_HRETRACE_END = 0x44, + GRUB_SM712_CR_SHADOW_VGA_VERTICAL_TOTAL = 0x45, + GRUB_SM712_CR_SHADOW_VGA_VBLANK_START = 0x46, + GRUB_SM712_CR_SHADOW_VGA_VBLANK_END = 0x47, + GRUB_SM712_CR_SHADOW_VGA_VRETRACE_START = 0x48, + GRUB_SM712_CR_SHADOW_VGA_VRETRACE_END = 0x49, + GRUB_SM712_CR_SHADOW_VGA_OVERFLOW = 0x4a, + GRUB_SM712_CR_SHADOW_VGA_CELL_HEIGHT = 0x4b, + GRUB_SM712_CR_SHADOW_VGA_HDISPLAY_END = 0x4c, + GRUB_SM712_CR_SHADOW_VGA_VDISPLAY_END = 0x4d, + GRUB_SM712_CR_DDA_LOOKUP_REG3_START = 0x90, + GRUB_SM712_CR_DDA_LOOKUP_REG2_START = 0x91, + GRUB_SM712_CR_DDA_LOOKUP_REG1_START = 0xa0, + GRUB_SM712_CR_VCENTERING_OFFSET = 0xa6, + GRUB_SM712_CR_HCENTERING_OFFSET = 0xa7, + }; + +#define GRUB_SM712_CR_DEBUG_NONE 0 + +#define SM712_DDA_REG3_COMPARE_SHIFT 2 +#define SM712_DDA_REG3_COMPARE_MASK 0xfc +#define SM712_DDA_REG3_DDA_SHIFT 8 +#define SM712_DDA_REG3_DDA_MASK 0x3 +#define SM712_DDA_REG2_DDA_MASK 0xff +#define SM712_DDA_REG2_VCENTER_MASK 0x3f + +static struct +{ + grub_uint8_t compare; + grub_uint16_t dda; + grub_uint8_t vcentering; +} dda_lookups[] = { + { 21, 469, 2}, + { 23, 477, 2}, + { 33, 535, 2}, + { 35, 682, 21}, + { 34, 675, 2}, + { 55, 683, 6}, +}; + +static struct +{ +#if !defined (TEST) && !defined(GENINIT) + struct grub_video_mode_info mode_info; +#endif + + volatile grub_uint8_t *ptr; + grub_uint8_t *cached_ptr; + int mapped; + grub_uint32_t base; +#if !defined (TEST) && !defined(GENINIT) + grub_pci_device_t dev; +#endif +} framebuffer; + +#if !defined (TEST) && !defined(GENINIT) +static grub_err_t +grub_video_sm712_video_init (void) +{ + /* Reset frame buffer. */ + grub_memset (&framebuffer, 0, sizeof(framebuffer)); + + return grub_video_fb_init (); +} + +static grub_err_t +grub_video_sm712_video_fini (void) +{ + if (framebuffer.mapped) + { + grub_pci_device_unmap_range (framebuffer.dev, framebuffer.ptr, + GRUB_SM712_TOTAL_MEMORY_SPACE); + grub_pci_device_unmap_range (framebuffer.dev, framebuffer.cached_ptr, + GRUB_SM712_TOTAL_MEMORY_SPACE); + } + return grub_video_fb_fini (); +} +#endif + +static inline void +grub_sm712_write_reg (grub_uint8_t val, grub_uint16_t addr) +{ +#ifdef TEST + printf (" {1, 0x%x, 0x%x},\n", addr, val); +#elif defined (GENINIT) + printf (" .byte 0x%02x, 0x%02x\n", (addr - 0x3c0), val); + if ((addr - 0x3c0) & ~0x7f) + printf ("FAIL\n"); +#else + *(volatile grub_uint8_t *) (framebuffer.ptr + GRUB_SM712_REG_BASE + + addr) = val; +#endif +} + +static inline grub_uint8_t +grub_sm712_read_reg (grub_uint16_t addr) +{ +#ifdef TEST + printf (" {-1, 0x%x, 0x5},\n", addr); +#elif defined (GENINIT) + if ((addr - 0x3c0) & ~0x7f) + printf ("FAIL\n"); + printf (" .byte 0x%04x, 0x00\n", (addr - 0x3c0) | 0x80); +#else + return *(volatile grub_uint8_t *) (framebuffer.ptr + GRUB_SM712_REG_BASE + + addr); +#endif +} + +static inline grub_uint8_t +grub_sm712_sr_read (grub_uint8_t addr) +{ + grub_sm712_write_reg (addr, GRUB_VGA_IO_SR_INDEX); + return grub_sm712_read_reg (GRUB_VGA_IO_SR_DATA); +} + +static inline void +grub_sm712_sr_write (grub_uint8_t val, grub_uint8_t addr) +{ + grub_sm712_write_reg (addr, GRUB_VGA_IO_SR_INDEX); + grub_sm712_write_reg (val, GRUB_VGA_IO_SR_DATA); +} + +static inline void +grub_sm712_gr_write (grub_uint8_t val, grub_uint8_t addr) +{ + grub_sm712_write_reg (addr, GRUB_VGA_IO_GR_INDEX); + grub_sm712_write_reg (val, GRUB_VGA_IO_GR_DATA); +} + +static inline void +grub_sm712_cr_write (grub_uint8_t val, grub_uint8_t addr) +{ + grub_sm712_write_reg (addr, GRUB_VGA_IO_CR_INDEX); + grub_sm712_write_reg (val, GRUB_VGA_IO_CR_DATA); +} + +static inline void +grub_sm712_write_arx (grub_uint8_t val, grub_uint8_t addr) +{ + grub_sm712_read_reg (GRUB_VGA_IO_INPUT_STATUS1_REGISTER); + grub_sm712_write_reg (addr, GRUB_VGA_IO_ARX); + grub_sm712_read_reg (GRUB_VGA_IO_ARX_READ); + grub_sm712_write_reg (val, GRUB_VGA_IO_ARX); +} + +static inline void +grub_sm712_cr_shadow_write (grub_uint8_t val, grub_uint8_t addr) +{ + grub_uint8_t mapping[] = + { + [GRUB_VGA_CR_HTOTAL] = GRUB_SM712_CR_SHADOW_VGA_HTOTAL, + [GRUB_VGA_CR_HORIZ_END] = 0xff, + [GRUB_VGA_CR_HBLANK_START] = GRUB_SM712_CR_SHADOW_VGA_HBLANK_START, + [GRUB_VGA_CR_HBLANK_END] = GRUB_SM712_CR_SHADOW_VGA_HBLANK_END, + [GRUB_VGA_CR_HORIZ_SYNC_PULSE_START] = GRUB_SM712_CR_SHADOW_VGA_HRETRACE_START, + [GRUB_VGA_CR_HORIZ_SYNC_PULSE_END] = GRUB_SM712_CR_SHADOW_VGA_HRETRACE_END, + [GRUB_VGA_CR_VERT_TOTAL] = GRUB_SM712_CR_SHADOW_VGA_VERTICAL_TOTAL, + [GRUB_VGA_CR_OVERFLOW] = GRUB_SM712_CR_SHADOW_VGA_OVERFLOW, + [GRUB_VGA_CR_BYTE_PANNING] = 0xff, + [GRUB_VGA_CR_CELL_HEIGHT] = GRUB_SM712_CR_SHADOW_VGA_CELL_HEIGHT, + [GRUB_VGA_CR_CURSOR_START] = 0xff, + [GRUB_VGA_CR_CURSOR_END] = 0xff, + [GRUB_VGA_CR_START_ADDR_HIGH_REGISTER] = 0xff, + [GRUB_VGA_CR_START_ADDR_LOW_REGISTER] = 0xff, + [GRUB_VGA_CR_CURSOR_ADDR_HIGH] = 0xff, + [GRUB_VGA_CR_CURSOR_ADDR_LOW] = 0xff, + [GRUB_VGA_CR_VSYNC_START] = GRUB_SM712_CR_SHADOW_VGA_VRETRACE_START, + [GRUB_VGA_CR_VSYNC_END] = GRUB_SM712_CR_SHADOW_VGA_VRETRACE_END, + [GRUB_VGA_CR_VDISPLAY_END] = GRUB_SM712_CR_SHADOW_VGA_VDISPLAY_END, + [GRUB_VGA_CR_PITCH] = GRUB_SM712_CR_SHADOW_VGA_HDISPLAY_END, + [GRUB_VGA_CR_UNDERLINE_LOCATION] = 0xff, + + [GRUB_VGA_CR_VERTICAL_BLANK_START] = GRUB_SM712_CR_SHADOW_VGA_VBLANK_START, + [GRUB_VGA_CR_VERTICAL_BLANK_END] = GRUB_SM712_CR_SHADOW_VGA_VBLANK_END, + [GRUB_VGA_CR_MODE] = 0xff, + [GRUB_VGA_CR_LINE_COMPARE] = 0xff + }; + if (addr >= ARRAY_SIZE (mapping) || mapping[addr] == 0xff) + return; + grub_sm712_cr_write (val, mapping[addr]); +} + +static inline void +grub_sm712_write_dda_lookup (int idx, grub_uint8_t compare, grub_uint16_t dda, + grub_uint8_t vcentering) +{ + grub_sm712_cr_write (((compare << SM712_DDA_REG3_COMPARE_SHIFT) + & SM712_DDA_REG3_COMPARE_MASK) + | ((dda >> SM712_DDA_REG3_DDA_SHIFT) + & SM712_DDA_REG3_DDA_MASK), + GRUB_SM712_CR_DDA_LOOKUP_REG3_START + 2 * idx); + grub_sm712_cr_write (dda & SM712_DDA_REG2_DDA_MASK, + GRUB_SM712_CR_DDA_LOOKUP_REG2_START + 2 * idx); + grub_sm712_cr_write (vcentering & SM712_DDA_REG2_VCENTER_MASK, + GRUB_SM712_CR_DDA_LOOKUP_REG1_START + idx); +} + +#if !defined (TEST) && !defined(GENINIT) +/* Helper for grub_video_sm712_setup. */ +static int +find_card (grub_pci_device_t dev, grub_pci_id_t pciid, void *data) +{ + int *found = data; + grub_pci_address_t addr; + grub_uint32_t class; + + addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS); + class = grub_pci_read (addr); + + if (((class >> 16) & 0xffff) != GRUB_PCI_CLASS_SUBCLASS_VGA + || pciid != GRUB_SM712_PCIID) + return 0; + + *found = 1; + + addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0); + framebuffer.base = grub_pci_read (addr); + framebuffer.dev = dev; + + return 1; +} +#endif + +static grub_err_t +grub_video_sm712_setup (unsigned int width, unsigned int height, + unsigned int mode_type, unsigned int mode_mask __attribute__ ((unused))) +{ + unsigned i; +#if !defined (TEST) && !defined(GENINIT) + int depth; + grub_err_t err; + int found = 0; + + /* Decode depth from mode_type. If it is zero, then autodetect. */ + depth = (mode_type & GRUB_VIDEO_MODE_TYPE_DEPTH_MASK) + >> GRUB_VIDEO_MODE_TYPE_DEPTH_POS; + + if ((width != 1024 && width != 0) || (height != 600 && height != 0) + || (depth != 16 && depth != 0)) + return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET, + "Only 1024x600x16 is supported"); + + grub_pci_iterate (find_card, &found); + if (!found) + return grub_error (GRUB_ERR_IO, "Couldn't find graphics card"); + /* Fill mode info details. */ + framebuffer.mode_info.width = 1024; + framebuffer.mode_info.height = 600; + framebuffer.mode_info.mode_type = (GRUB_VIDEO_MODE_TYPE_RGB + | GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED + | GRUB_VIDEO_MODE_TYPE_UPDATING_SWAP); + framebuffer.mode_info.bpp = 16; + framebuffer.mode_info.bytes_per_pixel = 2; + framebuffer.mode_info.pitch = 1024 * 2; + framebuffer.mode_info.number_of_colors = 256; + framebuffer.mode_info.red_mask_size = 5; + framebuffer.mode_info.red_field_pos = 11; + framebuffer.mode_info.green_mask_size = 6; + framebuffer.mode_info.green_field_pos = 5; + framebuffer.mode_info.blue_mask_size = 5; + framebuffer.mode_info.blue_field_pos = 0; + framebuffer.mode_info.reserved_mask_size = 0; + framebuffer.mode_info.reserved_field_pos = 0; + framebuffer.mode_info.blit_format + = grub_video_get_blit_format (&framebuffer.mode_info); +#endif + +#if !defined (TEST) && !defined(GENINIT) + if (found && framebuffer.base == 0) + { + grub_pci_address_t addr; + /* FIXME: choose address dynamically if needed. */ + framebuffer.base = 0x04000000; + + addr = grub_pci_make_address (framebuffer.dev, GRUB_PCI_REG_ADDRESS_REG0); + grub_pci_write (addr, framebuffer.base); + + /* Set latency. */ + addr = grub_pci_make_address (framebuffer.dev, GRUB_PCI_REG_CACHELINE); + grub_pci_write (addr, 0x8); + + /* Enable address spaces. */ + addr = grub_pci_make_address (framebuffer.dev, GRUB_PCI_REG_COMMAND); + grub_pci_write (addr, 0x7); + } +#endif + + /* We can safely discard volatile attribute. */ +#if !defined (TEST) && !defined(GENINIT) + framebuffer.ptr + = grub_pci_device_map_range (framebuffer.dev, + framebuffer.base, + GRUB_SM712_TOTAL_MEMORY_SPACE); + framebuffer.cached_ptr + = grub_pci_device_map_range_cached (framebuffer.dev, + framebuffer.base, + GRUB_SM712_TOTAL_MEMORY_SPACE); +#endif + framebuffer.mapped = 1; + + /* Initialise SM712. */ +#if !defined (TEST) && !defined(GENINIT) + /* FIXME */ + grub_vga_sr_write (0x11, 0x18); +#endif + +#if !defined (TEST) && !defined(GENINIT) + /* Prevent garbage from appearing on the screen. */ + grub_memset ((void *) framebuffer.cached_ptr, 0, + framebuffer.mode_info.height * framebuffer.mode_info.pitch); +#endif + + /* FIXME */ + grub_sm712_sr_write (0, 0x21); + grub_sm712_sr_write (0x7a, 0x62); + grub_sm712_sr_write (0x16, 0x6a); + grub_sm712_sr_write (0x2, 0x6b); + grub_sm712_write_reg (0, GRUB_VGA_IO_PIXEL_MASK); + grub_sm712_sr_write (GRUB_VGA_SR_RESET_ASYNC, GRUB_VGA_SR_RESET); + grub_sm712_write_reg (GRUB_VGA_IO_MISC_NEGATIVE_VERT_POLARITY + | GRUB_VGA_IO_MISC_NEGATIVE_HORIZ_POLARITY + | GRUB_VGA_IO_MISC_UPPER_64K + | GRUB_VGA_IO_MISC_EXTERNAL_CLOCK_0 + | GRUB_VGA_IO_MISC_ENABLE_VRAM_ACCESS + | GRUB_VGA_IO_MISC_COLOR, GRUB_VGA_IO_MISC_WRITE); + grub_sm712_sr_write (GRUB_VGA_SR_RESET_ASYNC | GRUB_VGA_SR_RESET_SYNC, + GRUB_VGA_SR_RESET); + grub_sm712_sr_write (GRUB_VGA_SR_CLOCKING_MODE_8_DOT_CLOCK, + GRUB_VGA_SR_CLOCKING_MODE); + grub_sm712_sr_write (GRUB_VGA_ALL_PLANES, GRUB_VGA_SR_MAP_MASK_REGISTER); + grub_sm712_sr_write (0, GRUB_VGA_SR_CHAR_MAP_SELECT); + grub_sm712_sr_write (GRUB_VGA_SR_MEMORY_MODE_CHAIN4 + | GRUB_VGA_SR_MEMORY_MODE_SEQUENTIAL_ADDRESSING + | GRUB_VGA_SR_MEMORY_MODE_EXTERNAL_VIDEO_MEMORY, + GRUB_VGA_SR_MEMORY_MODE); + + for (i = 0; i < ARRAY_SIZE (sm712_sr_seq1); i++) + grub_sm712_sr_write (sm712_sr_seq1[i], 0x10 + i); + + for (i = 0; i < ARRAY_SIZE (sm712_sr_seq2); i++) + grub_sm712_sr_write (sm712_sr_seq2[i], 0x30 + i); + + /* Undocumented. */ + grub_sm712_sr_write (0x1a, 0x63); + /* Undocumented. */ + grub_sm712_sr_write (0x1a, 0x64); + + grub_sm712_sr_write (GRUB_SM712_SR_TV_CRT_SRAM | GRUB_SM712_SR_TV_ALT_CLOCK + | GRUB_SM712_SR_TV_CLOCK_CKIN_NTSC + | GRUB_SM712_SR_TV_HSYNC, + GRUB_SM712_SR_TV_CONTROL); + + grub_sm712_sr_write (GRUB_SM712_SR_RAM_LUT_NORMAL, GRUB_SM712_SR_RAM_LUT); + + /* Undocumented. */ + grub_sm712_sr_write (0x00, 0x67); + + grub_sm712_sr_write (GRUB_SM712_SR_CLOCK_CONTROL1_VCLK_FROM_CCR + | GRUB_SM712_SR_CLOCK_CONTROL1_8DOT_CLOCK, + GRUB_SM712_SR_CLOCK_CONTROL1); + grub_sm712_sr_write (GRUB_SM712_SR_CLOCK_CONTROL2_PROGRAM_VCLOCK, + GRUB_SM712_SR_CLOCK_CONTROL2); + + grub_sm712_sr_write (82, GRUB_SM712_SR_VCLK_NUM); + grub_sm712_sr_write (137, GRUB_SM712_SR_VCLK_DENOM); + + grub_sm712_sr_write (9, GRUB_SM712_SR_VCLK2_NUM); + grub_sm712_sr_write (2, GRUB_SM712_SR_VCLK2_DENOM); + /* FIXME */ + grub_sm712_sr_write (0x04, 0x70); + /* FIXME */ + grub_sm712_sr_write (0x45, 0x71); + /* Undocumented */ + grub_sm712_sr_write (0x30, 0x72); + /* Undocumented */ + grub_sm712_sr_write (0x30, 0x73); + /* Undocumented */ + grub_sm712_sr_write (0x40, 0x74); + /* Undocumented */ + grub_sm712_sr_write (0x20, 0x75); + + grub_sm712_sr_write (0xff, GRUB_SM712_SR_POPUP_ICON_LOW); + grub_sm712_sr_write (GRUB_SM712_SR_POPUP_ICON_HIGH_MASK, + GRUB_SM712_SR_POPUP_ICON_HIGH); + grub_sm712_sr_write (GRUB_SM712_SR_POPUP_ICON_CTRL_DISABLED, + GRUB_SM712_SR_POPUP_ICON_CTRL); + /* Undocumented */ + grub_sm712_sr_write (0x0, 0x83); + + grub_sm712_sr_write (8, GRUB_SM712_SR_POPUP_ICON_COLOR1); + grub_sm712_sr_write (0, GRUB_SM712_SR_POPUP_ICON_COLOR2); + grub_sm712_sr_write (0x42, GRUB_SM712_SR_POPUP_ICON_COLOR3); + + /* Undocumented */ + grub_sm712_sr_write (0x3a, 0x87); + + /* Why theese coordinates? */ + grub_sm712_sr_write (0x59, GRUB_SM712_SR_HW_CURSOR_UPPER_LEFT_X_LOW); + grub_sm712_sr_write (0x02, GRUB_SM712_SR_HW_CURSOR_UPPER_LEFT_X_HIGH); + grub_sm712_sr_write (0x44, GRUB_SM712_SR_HW_CURSOR_UPPER_LEFT_Y_LOW); + grub_sm712_sr_write (0x02, GRUB_SM712_SR_HW_CURSOR_UPPER_LEFT_Y_HIGH); + + grub_sm712_sr_write (RGB332_BLACK, GRUB_SM712_SR_HW_CURSOR_FG_COLOR); + grub_sm712_sr_write (RGB332_WHITE, GRUB_SM712_SR_HW_CURSOR_BG_COLOR); + + /* Undocumented */ + grub_sm712_sr_write (0x3a, 0x8e); + grub_sm712_sr_write (0x3a, 0x8f); + + grub_sm712_sr_write (0, GRUB_SM712_SR_POPUP_ICON_X_LOW); + grub_sm712_sr_write (0, GRUB_SM712_SR_POPUP_ICON_X_HIGH); + grub_sm712_sr_write (0, GRUB_SM712_SR_POPUP_ICON_Y_LOW); + grub_sm712_sr_write (0, GRUB_SM712_SR_POPUP_ICON_Y_HIGH); + + grub_sm712_sr_write (0, GRUB_SM712_SR_PANEL_HW_VIDEO_CONTROL); + grub_sm712_sr_write (0x10, GRUB_SM712_SR_PANEL_HW_VIDEO_COLOR_KEY_LOW); + grub_sm712_sr_write (0x08, GRUB_SM712_SR_PANEL_HW_VIDEO_COLOR_KEY_HIGH); + grub_sm712_sr_write (0x00, GRUB_SM712_SR_PANEL_HW_VIDEO_COLOR_KEY_MASK_LOW); + grub_sm712_sr_write (0x02, GRUB_SM712_SR_PANEL_HW_VIDEO_COLOR_KEY_MASK_HIGH); + grub_sm712_sr_write (0xed, GRUB_SM712_SR_PANEL_HW_VIDEO_RED_CONSTANT); + grub_sm712_sr_write (0xed, GRUB_SM712_SR_PANEL_HW_VIDEO_GREEN_CONSTANT); + grub_sm712_sr_write (0xed, GRUB_SM712_SR_PANEL_HW_VIDEO_BLUE_CONSTANT); + + grub_sm712_sr_write (0x7b, GRUB_SM712_SR_PANEL_HW_VIDEO_TOP_BOUNDARY); + grub_sm712_sr_write (0xfb, GRUB_SM712_SR_PANEL_HW_VIDEO_LEFT_BOUNDARY); + grub_sm712_sr_write (0xff, GRUB_SM712_SR_PANEL_HW_VIDEO_BOTTOM_BOUNDARY); + grub_sm712_sr_write (0xff, GRUB_SM712_SR_PANEL_HW_VIDEO_RIGHT_BOUNDARY); + /* Doesn't match documentation? */ + grub_sm712_sr_write (0x97, GRUB_SM712_SR_PANEL_HW_VIDEO_TOP_LEFT_OVERFLOW_BOUNDARY); + grub_sm712_sr_write (0xef, GRUB_SM712_SR_PANEL_HW_VIDEO_BOTTOM_RIGHT_OVERFLOW_BOUNDARY); + + grub_sm712_sr_write (0xbf, GRUB_SM712_SR_PANEL_HW_VIDEO_VERTICAL_STRETCH_FACTOR); + grub_sm712_sr_write (0xdf, GRUB_SM712_SR_PANEL_HW_VIDEO_HORIZONTAL_STRETCH_FACTOR); + + grub_sm712_gr_write (GRUB_VGA_NO_PLANES, GRUB_VGA_GR_SET_RESET_PLANE); + grub_sm712_gr_write (GRUB_VGA_NO_PLANES, GRUB_VGA_GR_SET_RESET_PLANE_ENABLE); + grub_sm712_gr_write (GRUB_VGA_NO_PLANES, GRUB_VGA_GR_COLOR_COMPARE); + grub_sm712_gr_write (GRUB_VGA_GR_DATA_ROTATE_NOP, GRUB_VGA_GR_DATA_ROTATE); + grub_sm712_gr_write (GRUB_VGA_NO_PLANES, GRUB_VGA_GR_READ_MAP_REGISTER); + grub_sm712_gr_write (GRUB_VGA_GR_MODE_256_COLOR, GRUB_VGA_GR_MODE); + grub_sm712_gr_write (GRUB_VGA_GR_GR6_MMAP_A0 + | GRUB_VGA_GR_GR6_GRAPHICS_MODE, GRUB_VGA_GR_GR6); + grub_sm712_gr_write (GRUB_VGA_ALL_PLANES, GRUB_VGA_GR_COLOR_COMPARE_DISABLE); + grub_sm712_gr_write (0xff, GRUB_VGA_GR_BITMASK); + + /* Write palette mapping. */ + for (i = 0; i < 16; i++) + grub_sm712_write_arx (i, i); + + grub_sm712_write_arx (GRUB_VGA_ARX_MODE_ENABLE_256COLOR + | GRUB_VGA_ARX_MODE_GRAPHICS, GRUB_VGA_ARX_MODE); + grub_sm712_write_arx (0, GRUB_VGA_ARX_OVERSCAN); + grub_sm712_write_arx (GRUB_VGA_ALL_PLANES, GRUB_VGA_ARX_COLOR_PLANE_ENABLE); + grub_sm712_write_arx (0, GRUB_VGA_ARX_HORIZONTAL_PANNING); + grub_sm712_write_arx (0, GRUB_VGA_ARX_COLOR_SELECT); + + /* FIXME: compute this generically. */ + { + struct grub_video_hw_config config = + { + .vertical_total = 806, + .vertical_blank_start = 0x300, + .vertical_blank_end = 0, + .vertical_sync_start = 0x303, + .vertical_sync_end = 0x9, + .line_compare = 0x3ff, + .vdisplay_end = 0x300, + .pitch = 0x80, + .horizontal_total = 164, + .horizontal_end = 128, + .horizontal_blank_start = 128, + .horizontal_blank_end = 0, + .horizontal_sync_pulse_start = 133, + .horizontal_sync_pulse_end = 22 + }; + grub_vga_set_geometry (&config, grub_sm712_cr_write); + config.horizontal_sync_pulse_start = 134; + config.horizontal_sync_pulse_end = 21; + config.vertical_sync_start = 0x301; + config.vertical_sync_end = 0x0; + config.line_compare = 0x0ff; + config.vdisplay_end = 0x258; + config.pitch = 0x7f; + grub_vga_set_geometry (&config, grub_sm712_cr_shadow_write); + } + + grub_sm712_cr_write (GRUB_VGA_CR_BYTE_PANNING_NORMAL, + GRUB_VGA_CR_BYTE_PANNING); + grub_sm712_cr_write (0, GRUB_VGA_CR_CURSOR_START); + grub_sm712_cr_write (0, GRUB_VGA_CR_CURSOR_END); + grub_sm712_cr_write (0, GRUB_VGA_CR_START_ADDR_HIGH_REGISTER); + grub_sm712_cr_write (0, GRUB_VGA_CR_START_ADDR_LOW_REGISTER); + grub_sm712_cr_write (0, GRUB_VGA_CR_CURSOR_ADDR_HIGH); + grub_sm712_cr_write (0, GRUB_VGA_CR_CURSOR_ADDR_LOW); + grub_sm712_cr_write (GRUB_VGA_CR_UNDERLINE_LOCATION_DWORD_MODE, + GRUB_VGA_CR_UNDERLINE_LOCATION); + grub_sm712_cr_write (GRUB_VGA_CR_MODE_ADDRESS_WRAP + | GRUB_VGA_CR_MODE_BYTE_MODE + | GRUB_VGA_CR_MODE_TIMING_ENABLE + | GRUB_VGA_CR_MODE_NO_CGA + | GRUB_VGA_CR_MODE_NO_HERCULES, + GRUB_VGA_CR_MODE); + + grub_sm712_cr_write (0, GRUB_SM712_CR_OVERFLOW_INTERLACE); + grub_sm712_cr_write (0, GRUB_SM712_CR_INTERLACE_RETRACE); + grub_sm712_cr_write (0, GRUB_SM712_CR_TV_VDISPLAY_START); + grub_sm712_cr_write (0, GRUB_SM712_CR_TV_VDISPLAY_END_HIGH); + grub_sm712_cr_write (0, GRUB_SM712_CR_TV_VDISPLAY_END_LOW); + grub_sm712_cr_write (0x80, GRUB_SM712_CR_DDA_CONTROL_LOW); + grub_sm712_cr_write (0x02, GRUB_SM712_CR_DDA_CONTROL_HIGH); + + /* Undocumented */ + grub_sm712_cr_write (0x20, 0x37); + + grub_sm712_cr_write (0, GRUB_SM712_CR_TV_EQUALIZER); + grub_sm712_cr_write (0, GRUB_SM712_CR_TV_SERRATION); + grub_sm712_cr_write (0, GRUB_SM712_CR_HSYNC_CTRL); + + /* Undocumented */ + grub_sm712_cr_write (0x40, 0x3b); + + grub_sm712_cr_write (GRUB_SM712_CR_DEBUG_NONE, GRUB_SM712_CR_DEBUG); + + /* Undocumented */ + grub_sm712_cr_write (0xff, 0x3d); + grub_sm712_cr_write (0x46, 0x3e); + grub_sm712_cr_write (0x91, 0x3f); + + for (i = 0; i < ARRAY_SIZE (dda_lookups); i++) + grub_sm712_write_dda_lookup (i, dda_lookups[i].compare, dda_lookups[i].dda, + dda_lookups[i].vcentering); + + /* Undocumented */ + grub_sm712_cr_write (0, 0x9c); + grub_sm712_cr_write (0, 0x9d); + grub_sm712_cr_write (0, 0x9e); + grub_sm712_cr_write (0, 0x9f); + + grub_sm712_cr_write (0, GRUB_SM712_CR_VCENTERING_OFFSET); + grub_sm712_cr_write (0, GRUB_SM712_CR_HCENTERING_OFFSET); + + grub_sm712_write_reg (GRUB_VGA_IO_MISC_NEGATIVE_HORIZ_POLARITY + | GRUB_VGA_IO_MISC_UPPER_64K + | GRUB_VGA_IO_MISC_28MHZ + | GRUB_VGA_IO_MISC_ENABLE_VRAM_ACCESS + | GRUB_VGA_IO_MISC_COLOR, + GRUB_VGA_IO_MISC_WRITE); + +#if !defined (TEST) && !defined(GENINIT) + /* Undocumented? */ + *(volatile grub_uint32_t *) ((char *) framebuffer.ptr + 0x40c00c) = 0; + *(volatile grub_uint32_t *) ((char *) framebuffer.ptr + 0x40c040) = 0; + *(volatile grub_uint32_t *) ((char *) framebuffer.ptr + 0x40c000) = 0x20000; + *(volatile grub_uint32_t *) ((char *) framebuffer.ptr + 0x40c010) = 0x1020100; +#endif + + (void) grub_sm712_sr_read (0x16); + +#if !defined (TEST) && !defined(GENINIT) + err = grub_video_fb_setup (mode_type, mode_mask, + &framebuffer.mode_info, + framebuffer.cached_ptr, NULL, NULL); + if (err) + return err; + + /* Copy default palette to initialize emulated palette. */ + err = grub_video_fb_set_palette (0, GRUB_VIDEO_FBSTD_NUMCOLORS, + grub_video_fbstd_colors); + return err; +#else + return 0; +#endif +} + +#if !defined (TEST) && !defined(GENINIT) + +static grub_err_t +grub_video_sm712_swap_buffers (void) +{ + grub_size_t s; + s = (framebuffer.mode_info.height + * framebuffer.mode_info.pitch + * framebuffer.mode_info.bytes_per_pixel); + grub_video_fb_swap_buffers (); + grub_arch_sync_dma_caches (framebuffer.cached_ptr, s); + return GRUB_ERR_NONE; +} + +static grub_err_t +grub_video_sm712_get_info_and_fini (struct grub_video_mode_info *mode_info, + void **framebuf) +{ + grub_memcpy (mode_info, &(framebuffer.mode_info), sizeof (*mode_info)); + *framebuf = (char *) framebuffer.ptr; + + grub_video_fb_fini (); + + return GRUB_ERR_NONE; +} + +static struct grub_video_adapter grub_video_sm712_adapter = + { + .name = "SM712 Video Driver", + .id = GRUB_VIDEO_DRIVER_SM712, + + .prio = GRUB_VIDEO_ADAPTER_PRIO_NATIVE, + + .init = grub_video_sm712_video_init, + .fini = grub_video_sm712_video_fini, + .setup = grub_video_sm712_setup, + .get_info = grub_video_fb_get_info, + .get_info_and_fini = grub_video_sm712_get_info_and_fini, + .set_palette = grub_video_fb_set_palette, + .get_palette = grub_video_fb_get_palette, + .set_viewport = grub_video_fb_set_viewport, + .get_viewport = grub_video_fb_get_viewport, + .set_region = grub_video_fb_set_region, + .get_region = grub_video_fb_get_region, + .set_area_status = grub_video_fb_set_area_status, + .get_area_status = grub_video_fb_get_area_status, + .map_color = grub_video_fb_map_color, + .map_rgb = grub_video_fb_map_rgb, + .map_rgba = grub_video_fb_map_rgba, + .unmap_color = grub_video_fb_unmap_color, + .fill_rect = grub_video_fb_fill_rect, + .blit_bitmap = grub_video_fb_blit_bitmap, + .blit_render_target = grub_video_fb_blit_render_target, + .scroll = grub_video_fb_scroll, + .swap_buffers = grub_video_sm712_swap_buffers, + .create_render_target = grub_video_fb_create_render_target, + .delete_render_target = grub_video_fb_delete_render_target, + .set_active_render_target = grub_video_fb_set_active_render_target, + .get_active_render_target = grub_video_fb_get_active_render_target, + + .next = 0 + }; + +GRUB_MOD_INIT(video_sm712) +{ + grub_video_register (&grub_video_sm712_adapter); +} + +GRUB_MOD_FINI(video_sm712) +{ + grub_video_unregister (&grub_video_sm712_adapter); +} +#else +int +main () +{ + grub_video_sm712_setup (1024, 600, 0, 0); +} +#endif |