diff options
author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-02-13 15:31:38 +0200 |
---|---|---|
committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-04-17 08:10:19 +0300 |
commit | f7018c21350204c4cf628462f229d44d03545254 (patch) | |
tree | 408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/vt8623fb.c | |
parent | c26ef3eb3c11274bad1b64498d0a134f85755250 (diff) | |
download | linux-stable-f7018c21350204c4cf628462f229d44d03545254.tar.gz linux-stable-f7018c21350204c4cf628462f229d44d03545254.tar.bz2 linux-stable-f7018c21350204c4cf628462f229d44d03545254.zip |
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.
Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.
No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/vt8623fb.c')
-rw-r--r-- | drivers/video/vt8623fb.c | 958 |
1 files changed, 0 insertions, 958 deletions
diff --git a/drivers/video/vt8623fb.c b/drivers/video/vt8623fb.c deleted file mode 100644 index 5c7cbc6c6236..000000000000 --- a/drivers/video/vt8623fb.c +++ /dev/null @@ -1,958 +0,0 @@ -/* - * linux/drivers/video/vt8623fb.c - fbdev driver for - * integrated graphic core in VIA VT8623 [CLE266] chipset - * - * Copyright (c) 2006-2007 Ondrej Zajicek <santiago@crfreenet.org> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive for - * more details. - * - * Code is based on s3fb, some parts are from David Boucher's viafb - * (http://davesdomain.org.uk/viafb/) - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/tty.h> -#include <linux/delay.h> -#include <linux/fb.h> -#include <linux/svga.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/console.h> /* Why should fb driver call console functions? because console_lock() */ -#include <video/vga.h> - -#ifdef CONFIG_MTRR -#include <asm/mtrr.h> -#endif - -struct vt8623fb_info { - char __iomem *mmio_base; - int mtrr_reg; - struct vgastate state; - struct mutex open_lock; - unsigned int ref_count; - u32 pseudo_palette[16]; -}; - - - -/* ------------------------------------------------------------------------- */ - -static const struct svga_fb_format vt8623fb_formats[] = { - { 0, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 0, - FB_TYPE_TEXT, FB_AUX_TEXT_SVGA_STEP8, FB_VISUAL_PSEUDOCOLOR, 16, 16}, - { 4, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 0, - FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_PSEUDOCOLOR, 16, 16}, - { 4, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 1, - FB_TYPE_INTERLEAVED_PLANES, 1, FB_VISUAL_PSEUDOCOLOR, 16, 16}, - { 8, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 0, - FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_PSEUDOCOLOR, 8, 8}, -/* {16, {10, 5, 0}, {5, 5, 0}, {0, 5, 0}, {0, 0, 0}, 0, - FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 4, 4}, */ - {16, {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0}, 0, - FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 4, 4}, - {32, {16, 8, 0}, {8, 8, 0}, {0, 8, 0}, {0, 0, 0}, 0, - FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 2, 2}, - SVGA_FORMAT_END -}; - -static const struct svga_pll vt8623_pll = {2, 127, 2, 7, 0, 3, - 60000, 300000, 14318}; - -/* CRT timing register sets */ - -static struct vga_regset vt8623_h_total_regs[] = {{0x00, 0, 7}, {0x36, 3, 3}, VGA_REGSET_END}; -static struct vga_regset vt8623_h_display_regs[] = {{0x01, 0, 7}, VGA_REGSET_END}; -static struct vga_regset vt8623_h_blank_start_regs[] = {{0x02, 0, 7}, VGA_REGSET_END}; -static struct vga_regset vt8623_h_blank_end_regs[] = {{0x03, 0, 4}, {0x05, 7, 7}, {0x33, 5, 5}, VGA_REGSET_END}; -static struct vga_regset vt8623_h_sync_start_regs[] = {{0x04, 0, 7}, {0x33, 4, 4}, VGA_REGSET_END}; -static struct vga_regset vt8623_h_sync_end_regs[] = {{0x05, 0, 4}, VGA_REGSET_END}; - -static struct vga_regset vt8623_v_total_regs[] = {{0x06, 0, 7}, {0x07, 0, 0}, {0x07, 5, 5}, {0x35, 0, 0}, VGA_REGSET_END}; -static struct vga_regset vt8623_v_display_regs[] = {{0x12, 0, 7}, {0x07, 1, 1}, {0x07, 6, 6}, {0x35, 2, 2}, VGA_REGSET_END}; -static struct vga_regset vt8623_v_blank_start_regs[] = {{0x15, 0, 7}, {0x07, 3, 3}, {0x09, 5, 5}, {0x35, 3, 3}, VGA_REGSET_END}; -static struct vga_regset vt8623_v_blank_end_regs[] = {{0x16, 0, 7}, VGA_REGSET_END}; -static struct vga_regset vt8623_v_sync_start_regs[] = {{0x10, 0, 7}, {0x07, 2, 2}, {0x07, 7, 7}, {0x35, 1, 1}, VGA_REGSET_END}; -static struct vga_regset vt8623_v_sync_end_regs[] = {{0x11, 0, 3}, VGA_REGSET_END}; - -static struct vga_regset vt8623_offset_regs[] = {{0x13, 0, 7}, {0x35, 5, 7}, VGA_REGSET_END}; -static struct vga_regset vt8623_line_compare_regs[] = {{0x18, 0, 7}, {0x07, 4, 4}, {0x09, 6, 6}, {0x33, 0, 2}, {0x35, 4, 4}, VGA_REGSET_END}; -static struct vga_regset vt8623_fetch_count_regs[] = {{0x1C, 0, 7}, {0x1D, 0, 1}, VGA_REGSET_END}; -static struct vga_regset vt8623_start_address_regs[] = {{0x0d, 0, 7}, {0x0c, 0, 7}, {0x34, 0, 7}, {0x48, 0, 1}, VGA_REGSET_END}; - -static struct svga_timing_regs vt8623_timing_regs = { - vt8623_h_total_regs, vt8623_h_display_regs, vt8623_h_blank_start_regs, - vt8623_h_blank_end_regs, vt8623_h_sync_start_regs, vt8623_h_sync_end_regs, - vt8623_v_total_regs, vt8623_v_display_regs, vt8623_v_blank_start_regs, - vt8623_v_blank_end_regs, vt8623_v_sync_start_regs, vt8623_v_sync_end_regs, -}; - - -/* ------------------------------------------------------------------------- */ - - -/* Module parameters */ - -static char *mode_option = "640x480-8@60"; - -#ifdef CONFIG_MTRR -static int mtrr = 1; -#endif - -MODULE_AUTHOR("(c) 2006 Ondrej Zajicek <santiago@crfreenet.org>"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("fbdev driver for integrated graphics core in VIA VT8623 [CLE266]"); - -module_param(mode_option, charp, 0644); -MODULE_PARM_DESC(mode_option, "Default video mode ('640x480-8@60', etc)"); -module_param_named(mode, mode_option, charp, 0); -MODULE_PARM_DESC(mode, "Default video mode e.g. '648x480-8@60' (deprecated)"); - -#ifdef CONFIG_MTRR -module_param(mtrr, int, 0444); -MODULE_PARM_DESC(mtrr, "Enable write-combining with MTRR (1=enable, 0=disable, default=1)"); -#endif - - -/* ------------------------------------------------------------------------- */ - -static void vt8623fb_tilecursor(struct fb_info *info, struct fb_tilecursor *cursor) -{ - struct vt8623fb_info *par = info->par; - - svga_tilecursor(par->state.vgabase, info, cursor); -} - -static struct fb_tile_ops vt8623fb_tile_ops = { - .fb_settile = svga_settile, - .fb_tilecopy = svga_tilecopy, - .fb_tilefill = svga_tilefill, - .fb_tileblit = svga_tileblit, - .fb_tilecursor = vt8623fb_tilecursor, - .fb_get_tilemax = svga_get_tilemax, -}; - - -/* ------------------------------------------------------------------------- */ - - -/* image data is MSB-first, fb structure is MSB-first too */ -static inline u32 expand_color(u32 c) -{ - return ((c & 1) | ((c & 2) << 7) | ((c & 4) << 14) | ((c & 8) << 21)) * 0xFF; -} - -/* vt8623fb_iplan_imageblit silently assumes that almost everything is 8-pixel aligned */ -static void vt8623fb_iplan_imageblit(struct fb_info *info, const struct fb_image *image) -{ - u32 fg = expand_color(image->fg_color); - u32 bg = expand_color(image->bg_color); - const u8 *src1, *src; - u8 __iomem *dst1; - u32 __iomem *dst; - u32 val; - int x, y; - - src1 = image->data; - dst1 = info->screen_base + (image->dy * info->fix.line_length) - + ((image->dx / 8) * 4); - - for (y = 0; y < image->height; y++) { - src = src1; - dst = (u32 __iomem *) dst1; - for (x = 0; x < image->width; x += 8) { - val = *(src++) * 0x01010101; - val = (val & fg) | (~val & bg); - fb_writel(val, dst++); - } - src1 += image->width / 8; - dst1 += info->fix.line_length; - } -} - -/* vt8623fb_iplan_fillrect silently assumes that almost everything is 8-pixel aligned */ -static void vt8623fb_iplan_fillrect(struct fb_info *info, const struct fb_fillrect *rect) -{ - u32 fg = expand_color(rect->color); - u8 __iomem *dst1; - u32 __iomem *dst; - int x, y; - - dst1 = info->screen_base + (rect->dy * info->fix.line_length) - + ((rect->dx / 8) * 4); - - for (y = 0; y < rect->height; y++) { - dst = (u32 __iomem *) dst1; - for (x = 0; x < rect->width; x += 8) { - fb_writel(fg, dst++); - } - dst1 += info->fix.line_length; - } -} - - -/* image data is MSB-first, fb structure is high-nibble-in-low-byte-first */ -static inline u32 expand_pixel(u32 c) -{ - return (((c & 1) << 24) | ((c & 2) << 27) | ((c & 4) << 14) | ((c & 8) << 17) | - ((c & 16) << 4) | ((c & 32) << 7) | ((c & 64) >> 6) | ((c & 128) >> 3)) * 0xF; -} - -/* vt8623fb_cfb4_imageblit silently assumes that almost everything is 8-pixel aligned */ -static void vt8623fb_cfb4_imageblit(struct fb_info *info, const struct fb_image *image) -{ - u32 fg = image->fg_color * 0x11111111; - u32 bg = image->bg_color * 0x11111111; - const u8 *src1, *src; - u8 __iomem *dst1; - u32 __iomem *dst; - u32 val; - int x, y; - - src1 = image->data; - dst1 = info->screen_base + (image->dy * info->fix.line_length) - + ((image->dx / 8) * 4); - - for (y = 0; y < image->height; y++) { - src = src1; - dst = (u32 __iomem *) dst1; - for (x = 0; x < image->width; x += 8) { - val = expand_pixel(*(src++)); - val = (val & fg) | (~val & bg); - fb_writel(val, dst++); - } - src1 += image->width / 8; - dst1 += info->fix.line_length; - } -} - -static void vt8623fb_imageblit(struct fb_info *info, const struct fb_image *image) -{ - if ((info->var.bits_per_pixel == 4) && (image->depth == 1) - && ((image->width % 8) == 0) && ((image->dx % 8) == 0)) { - if (info->fix.type == FB_TYPE_INTERLEAVED_PLANES) - vt8623fb_iplan_imageblit(info, image); - else - vt8623fb_cfb4_imageblit(info, image); - } else - cfb_imageblit(info, image); -} - -static void vt8623fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) -{ - if ((info->var.bits_per_pixel == 4) - && ((rect->width % 8) == 0) && ((rect->dx % 8) == 0) - && (info->fix.type == FB_TYPE_INTERLEAVED_PLANES)) - vt8623fb_iplan_fillrect(info, rect); - else - cfb_fillrect(info, rect); -} - - -/* ------------------------------------------------------------------------- */ - - -static void vt8623_set_pixclock(struct fb_info *info, u32 pixclock) -{ - struct vt8623fb_info *par = info->par; - u16 m, n, r; - u8 regval; - int rv; - - rv = svga_compute_pll(&vt8623_pll, 1000000000 / pixclock, &m, &n, &r, info->node); - if (rv < 0) { - fb_err(info, "cannot set requested pixclock, keeping old value\n"); - return; - } - - /* Set VGA misc register */ - regval = vga_r(par->state.vgabase, VGA_MIS_R); - vga_w(par->state.vgabase, VGA_MIS_W, regval | VGA_MIS_ENB_PLL_LOAD); - - /* Set clock registers */ - vga_wseq(par->state.vgabase, 0x46, (n | (r << 6))); - vga_wseq(par->state.vgabase, 0x47, m); - - udelay(1000); - - /* PLL reset */ - svga_wseq_mask(par->state.vgabase, 0x40, 0x02, 0x02); - svga_wseq_mask(par->state.vgabase, 0x40, 0x00, 0x02); -} - - -static int vt8623fb_open(struct fb_info *info, int user) -{ - struct vt8623fb_info *par = info->par; - - mutex_lock(&(par->open_lock)); - if (par->ref_count == 0) { - void __iomem *vgabase = par->state.vgabase; - - memset(&(par->state), 0, sizeof(struct vgastate)); - par->state.vgabase = vgabase; - par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS | VGA_SAVE_CMAP; - par->state.num_crtc = 0xA2; - par->state.num_seq = 0x50; - save_vga(&(par->state)); - } - - par->ref_count++; - mutex_unlock(&(par->open_lock)); - - return 0; -} - -static int vt8623fb_release(struct fb_info *info, int user) -{ - struct vt8623fb_info *par = info->par; - - mutex_lock(&(par->open_lock)); - if (par->ref_count == 0) { - mutex_unlock(&(par->open_lock)); - return -EINVAL; - } - - if (par->ref_count == 1) - restore_vga(&(par->state)); - - par->ref_count--; - mutex_unlock(&(par->open_lock)); - - return 0; -} - -static int vt8623fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) -{ - int rv, mem, step; - - /* Find appropriate format */ - rv = svga_match_format (vt8623fb_formats, var, NULL); - if (rv < 0) - { - fb_err(info, "unsupported mode requested\n"); - return rv; - } - - /* Do not allow to have real resoulution larger than virtual */ - if (var->xres > var->xres_virtual) - var->xres_virtual = var->xres; - - if (var->yres > var->yres_virtual) - var->yres_virtual = var->yres; - - /* Round up xres_virtual to have proper alignment of lines */ - step = vt8623fb_formats[rv].xresstep - 1; - var->xres_virtual = (var->xres_virtual+step) & ~step; - - /* Check whether have enough memory */ - mem = ((var->bits_per_pixel * var->xres_virtual) >> 3) * var->yres_virtual; - if (mem > info->screen_size) - { - fb_err(info, "not enough framebuffer memory (%d kB requested, %d kB available)\n", - mem >> 10, (unsigned int) (info->screen_size >> 10)); - return -EINVAL; - } - - /* Text mode is limited to 256 kB of memory */ - if ((var->bits_per_pixel == 0) && (mem > (256*1024))) - { - fb_err(info, "text framebuffer size too large (%d kB requested, 256 kB possible)\n", - mem >> 10); - return -EINVAL; - } - - rv = svga_check_timings (&vt8623_timing_regs, var, info->node); - if (rv < 0) - { - fb_err(info, "invalid timings requested\n"); - return rv; - } - - /* Interlaced mode not supported */ - if (var->vmode & FB_VMODE_INTERLACED) - return -EINVAL; - - return 0; -} - - -static int vt8623fb_set_par(struct fb_info *info) -{ - u32 mode, offset_value, fetch_value, screen_size; - struct vt8623fb_info *par = info->par; - u32 bpp = info->var.bits_per_pixel; - - if (bpp != 0) { - info->fix.ypanstep = 1; - info->fix.line_length = (info->var.xres_virtual * bpp) / 8; - - info->flags &= ~FBINFO_MISC_TILEBLITTING; - info->tileops = NULL; - - /* in 4bpp supports 8p wide tiles only, any tiles otherwise */ - info->pixmap.blit_x = (bpp == 4) ? (1 << (8 - 1)) : (~(u32)0); - info->pixmap.blit_y = ~(u32)0; - - offset_value = (info->var.xres_virtual * bpp) / 64; - fetch_value = ((info->var.xres * bpp) / 128) + 4; - - if (bpp == 4) - fetch_value = (info->var.xres / 8) + 8; /* + 0 is OK */ - - screen_size = info->var.yres_virtual * info->fix.line_length; - } else { - info->fix.ypanstep = 16; - info->fix.line_length = 0; - - info->flags |= FBINFO_MISC_TILEBLITTING; - info->tileops = &vt8623fb_tile_ops; - - /* supports 8x16 tiles only */ - info->pixmap.blit_x = 1 << (8 - 1); - info->pixmap.blit_y = 1 << (16 - 1); - - offset_value = info->var.xres_virtual / 16; - fetch_value = (info->var.xres / 8) + 8; - screen_size = (info->var.xres_virtual * info->var.yres_virtual) / 64; - } - - info->var.xoffset = 0; - info->var.yoffset = 0; - info->var.activate = FB_ACTIVATE_NOW; - - /* Unlock registers */ - svga_wseq_mask(par->state.vgabase, 0x10, 0x01, 0x01); - svga_wcrt_mask(par->state.vgabase, 0x11, 0x00, 0x80); - svga_wcrt_mask(par->state.vgabase, 0x47, 0x00, 0x01); - - /* Device, screen and sync off */ - svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20); - svga_wcrt_mask(par->state.vgabase, 0x36, 0x30, 0x30); - svga_wcrt_mask(par->state.vgabase, 0x17, 0x00, 0x80); - - /* Set default values */ - svga_set_default_gfx_regs(par->state.vgabase); - svga_set_default_atc_regs(par->state.vgabase); - svga_set_default_seq_regs(par->state.vgabase); - svga_set_default_crt_regs(par->state.vgabase); - svga_wcrt_multi(par->state.vgabase, vt8623_line_compare_regs, 0xFFFFFFFF); - svga_wcrt_multi(par->state.vgabase, vt8623_start_address_regs, 0); - - svga_wcrt_multi(par->state.vgabase, vt8623_offset_regs, offset_value); - svga_wseq_multi(par->state.vgabase, vt8623_fetch_count_regs, fetch_value); - - /* Clear H/V Skew */ - svga_wcrt_mask(par->state.vgabase, 0x03, 0x00, 0x60); - svga_wcrt_mask(par->state.vgabase, 0x05, 0x00, 0x60); - - if (info->var.vmode & FB_VMODE_DOUBLE) - svga_wcrt_mask(par->state.vgabase, 0x09, 0x80, 0x80); - else - svga_wcrt_mask(par->state.vgabase, 0x09, 0x00, 0x80); - - svga_wseq_mask(par->state.vgabase, 0x1E, 0xF0, 0xF0); // DI/DVP bus - svga_wseq_mask(par->state.vgabase, 0x2A, 0x0F, 0x0F); // DI/DVP bus - svga_wseq_mask(par->state.vgabase, 0x16, 0x08, 0xBF); // FIFO read threshold - vga_wseq(par->state.vgabase, 0x17, 0x1F); // FIFO depth - vga_wseq(par->state.vgabase, 0x18, 0x4E); - svga_wseq_mask(par->state.vgabase, 0x1A, 0x08, 0x08); // enable MMIO ? - - vga_wcrt(par->state.vgabase, 0x32, 0x00); - vga_wcrt(par->state.vgabase, 0x34, 0x00); - vga_wcrt(par->state.vgabase, 0x6A, 0x80); - vga_wcrt(par->state.vgabase, 0x6A, 0xC0); - - vga_wgfx(par->state.vgabase, 0x20, 0x00); - vga_wgfx(par->state.vgabase, 0x21, 0x00); - vga_wgfx(par->state.vgabase, 0x22, 0x00); - - /* Set SR15 according to number of bits per pixel */ - mode = svga_match_format(vt8623fb_formats, &(info->var), &(info->fix)); - switch (mode) { - case 0: - fb_dbg(info, "text mode\n"); - svga_set_textmode_vga_regs(par->state.vgabase); - svga_wseq_mask(par->state.vgabase, 0x15, 0x00, 0xFE); - svga_wcrt_mask(par->state.vgabase, 0x11, 0x60, 0x70); - break; - case 1: - fb_dbg(info, "4 bit pseudocolor\n"); - vga_wgfx(par->state.vgabase, VGA_GFX_MODE, 0x40); - svga_wseq_mask(par->state.vgabase, 0x15, 0x20, 0xFE); - svga_wcrt_mask(par->state.vgabase, 0x11, 0x00, 0x70); - break; - case 2: - fb_dbg(info, "4 bit pseudocolor, planar\n"); - svga_wseq_mask(par->state.vgabase, 0x15, 0x00, 0xFE); - svga_wcrt_mask(par->state.vgabase, 0x11, 0x00, 0x70); - break; - case 3: - fb_dbg(info, "8 bit pseudocolor\n"); - svga_wseq_mask(par->state.vgabase, 0x15, 0x22, 0xFE); - break; - case 4: - fb_dbg(info, "5/6/5 truecolor\n"); - svga_wseq_mask(par->state.vgabase, 0x15, 0xB6, 0xFE); - break; - case 5: - fb_dbg(info, "8/8/8 truecolor\n"); - svga_wseq_mask(par->state.vgabase, 0x15, 0xAE, 0xFE); - break; - default: - printk(KERN_ERR "vt8623fb: unsupported mode - bug\n"); - return (-EINVAL); - } - - vt8623_set_pixclock(info, info->var.pixclock); - svga_set_timings(par->state.vgabase, &vt8623_timing_regs, &(info->var), 1, 1, - (info->var.vmode & FB_VMODE_DOUBLE) ? 2 : 1, 1, - 1, info->node); - - memset_io(info->screen_base, 0x00, screen_size); - - /* Device and screen back on */ - svga_wcrt_mask(par->state.vgabase, 0x17, 0x80, 0x80); - svga_wcrt_mask(par->state.vgabase, 0x36, 0x00, 0x30); - svga_wseq_mask(par->state.vgabase, 0x01, 0x00, 0x20); - - return 0; -} - - -static int vt8623fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, - u_int transp, struct fb_info *fb) -{ - switch (fb->var.bits_per_pixel) { - case 0: - case 4: - if (regno >= 16) - return -EINVAL; - - outb(0x0F, VGA_PEL_MSK); - outb(regno, VGA_PEL_IW); - outb(red >> 10, VGA_PEL_D); - outb(green >> 10, VGA_PEL_D); - outb(blue >> 10, VGA_PEL_D); - break; - case 8: - if (regno >= 256) - return -EINVAL; - - outb(0xFF, VGA_PEL_MSK); - outb(regno, VGA_PEL_IW); - outb(red >> 10, VGA_PEL_D); - outb(green >> 10, VGA_PEL_D); - outb(blue >> 10, VGA_PEL_D); - break; - case 16: - if (regno >= 16) - return 0; - - if (fb->var.green.length == 5) - ((u32*)fb->pseudo_palette)[regno] = ((red & 0xF800) >> 1) | - ((green & 0xF800) >> 6) | ((blue & 0xF800) >> 11); - else if (fb->var.green.length == 6) - ((u32*)fb->pseudo_palette)[regno] = (red & 0xF800) | - ((green & 0xFC00) >> 5) | ((blue & 0xF800) >> 11); - else - return -EINVAL; - break; - case 24: - case 32: - if (regno >= 16) - return 0; - - /* ((transp & 0xFF00) << 16) */ - ((u32*)fb->pseudo_palette)[regno] = ((red & 0xFF00) << 8) | - (green & 0xFF00) | ((blue & 0xFF00) >> 8); - break; - default: - return -EINVAL; - } - - return 0; -} - - -static int vt8623fb_blank(int blank_mode, struct fb_info *info) -{ - struct vt8623fb_info *par = info->par; - - switch (blank_mode) { - case FB_BLANK_UNBLANK: - fb_dbg(info, "unblank\n"); - svga_wcrt_mask(par->state.vgabase, 0x36, 0x00, 0x30); - svga_wseq_mask(par->state.vgabase, 0x01, 0x00, 0x20); - break; - case FB_BLANK_NORMAL: - fb_dbg(info, "blank\n"); - svga_wcrt_mask(par->state.vgabase, 0x36, 0x00, 0x30); - svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20); - break; - case FB_BLANK_HSYNC_SUSPEND: - fb_dbg(info, "DPMS standby (hsync off)\n"); - svga_wcrt_mask(par->state.vgabase, 0x36, 0x10, 0x30); - svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20); - break; - case FB_BLANK_VSYNC_SUSPEND: - fb_dbg(info, "DPMS suspend (vsync off)\n"); - svga_wcrt_mask(par->state.vgabase, 0x36, 0x20, 0x30); - svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20); - break; - case FB_BLANK_POWERDOWN: - fb_dbg(info, "DPMS off (no sync)\n"); - svga_wcrt_mask(par->state.vgabase, 0x36, 0x30, 0x30); - svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20); - break; - } - - return 0; -} - - -static int vt8623fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) -{ - struct vt8623fb_info *par = info->par; - unsigned int offset; - - /* Calculate the offset */ - if (info->var.bits_per_pixel == 0) { - offset = (var->yoffset / 16) * info->var.xres_virtual - + var->xoffset; - offset = offset >> 3; - } else { - offset = (var->yoffset * info->fix.line_length) + - (var->xoffset * info->var.bits_per_pixel / 8); - offset = offset >> ((info->var.bits_per_pixel == 4) ? 2 : 1); - } - - /* Set the offset */ - svga_wcrt_multi(par->state.vgabase, vt8623_start_address_regs, offset); - - return 0; -} - - -/* ------------------------------------------------------------------------- */ - - -/* Frame buffer operations */ - -static struct fb_ops vt8623fb_ops = { - .owner = THIS_MODULE, - .fb_open = vt8623fb_open, - .fb_release = vt8623fb_release, - .fb_check_var = vt8623fb_check_var, - .fb_set_par = vt8623fb_set_par, - .fb_setcolreg = vt8623fb_setcolreg, - .fb_blank = vt8623fb_blank, - .fb_pan_display = vt8623fb_pan_display, - .fb_fillrect = vt8623fb_fillrect, - .fb_copyarea = cfb_copyarea, - .fb_imageblit = vt8623fb_imageblit, - .fb_get_caps = svga_get_caps, -}; - - -/* PCI probe */ - -static int vt8623_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) -{ - struct pci_bus_region bus_reg; - struct resource vga_res; - struct fb_info *info; - struct vt8623fb_info *par; - unsigned int memsize1, memsize2; - int rc; - - /* Ignore secondary VGA device because there is no VGA arbitration */ - if (! svga_primary_device(dev)) { - dev_info(&(dev->dev), "ignoring secondary device\n"); - return -ENODEV; - } - - /* Allocate and fill driver data structure */ - info = framebuffer_alloc(sizeof(struct vt8623fb_info), &(dev->dev)); - if (! info) { - dev_err(&(dev->dev), "cannot allocate memory\n"); - return -ENOMEM; - } - - par = info->par; - mutex_init(&par->open_lock); - - info->flags = FBINFO_PARTIAL_PAN_OK | FBINFO_HWACCEL_YPAN; - info->fbops = &vt8623fb_ops; - - /* Prepare PCI device */ - - rc = pci_enable_device(dev); - if (rc < 0) { - dev_err(info->device, "cannot enable PCI device\n"); - goto err_enable_device; - } - - rc = pci_request_regions(dev, "vt8623fb"); - if (rc < 0) { - dev_err(info->device, "cannot reserve framebuffer region\n"); - goto err_request_regions; - } - - info->fix.smem_start = pci_resource_start(dev, 0); - info->fix.smem_len = pci_resource_len(dev, 0); - info->fix.mmio_start = pci_resource_start(dev, 1); - info->fix.mmio_len = pci_resource_len(dev, 1); - - /* Map physical IO memory address into kernel space */ - info->screen_base = pci_iomap(dev, 0, 0); - if (! info->screen_base) { - rc = -ENOMEM; - dev_err(info->device, "iomap for framebuffer failed\n"); - goto err_iomap_1; - } - - par->mmio_base = pci_iomap(dev, 1, 0); - if (! par->mmio_base) { - rc = -ENOMEM; - dev_err(info->device, "iomap for MMIO failed\n"); - goto err_iomap_2; - } - - bus_reg.start = 0; - bus_reg.end = 64 * 1024; - - vga_res.flags = IORESOURCE_IO; - - pcibios_bus_to_resource(dev->bus, &vga_res, &bus_reg); - - par->state.vgabase = (void __iomem *) vga_res.start; - - /* Find how many physical memory there is on card */ - memsize1 = (vga_rseq(par->state.vgabase, 0x34) + 1) >> 1; - memsize2 = vga_rseq(par->state.vgabase, 0x39) << 2; - - if ((16 <= memsize1) && (memsize1 <= 64) && (memsize1 == memsize2)) - info->screen_size = memsize1 << 20; - else { - dev_err(info->device, "memory size detection failed (%x %x), suppose 16 MB\n", memsize1, memsize2); - info->screen_size = 16 << 20; - } - - info->fix.smem_len = info->screen_size; - strcpy(info->fix.id, "VIA VT8623"); - info->fix.type = FB_TYPE_PACKED_PIXELS; - info->fix.visual = FB_VISUAL_PSEUDOCOLOR; - info->fix.ypanstep = 0; - info->fix.accel = FB_ACCEL_NONE; - info->pseudo_palette = (void*)par->pseudo_palette; - - /* Prepare startup mode */ - - kparam_block_sysfs_write(mode_option); - rc = fb_find_mode(&(info->var), info, mode_option, NULL, 0, NULL, 8); - kparam_unblock_sysfs_write(mode_option); - if (! ((rc == 1) || (rc == 2))) { - rc = -EINVAL; - dev_err(info->device, "mode %s not found\n", mode_option); - goto err_find_mode; - } - - rc = fb_alloc_cmap(&info->cmap, 256, 0); - if (rc < 0) { - dev_err(info->device, "cannot allocate colormap\n"); - goto err_alloc_cmap; - } - - rc = register_framebuffer(info); - if (rc < 0) { - dev_err(info->device, "cannot register framebuffer\n"); - goto err_reg_fb; - } - - fb_info(info, "%s on %s, %d MB RAM\n", - info->fix.id, pci_name(dev), info->fix.smem_len >> 20); - - /* Record a reference to the driver data */ - pci_set_drvdata(dev, info); - -#ifdef CONFIG_MTRR - if (mtrr) { - par->mtrr_reg = -1; - par->mtrr_reg = mtrr_add(info->fix.smem_start, info->fix.smem_len, MTRR_TYPE_WRCOMB, 1); - } -#endif - - return 0; - - /* Error handling */ -err_reg_fb: - fb_dealloc_cmap(&info->cmap); -err_alloc_cmap: -err_find_mode: - pci_iounmap(dev, par->mmio_base); -err_iomap_2: - pci_iounmap(dev, info->screen_base); -err_iomap_1: - pci_release_regions(dev); -err_request_regions: -/* pci_disable_device(dev); */ -err_enable_device: - framebuffer_release(info); - return rc; -} - -/* PCI remove */ - -static void vt8623_pci_remove(struct pci_dev *dev) -{ - struct fb_info *info = pci_get_drvdata(dev); - - if (info) { - struct vt8623fb_info *par = info->par; - -#ifdef CONFIG_MTRR - if (par->mtrr_reg >= 0) { - mtrr_del(par->mtrr_reg, 0, 0); - par->mtrr_reg = -1; - } -#endif - - unregister_framebuffer(info); - fb_dealloc_cmap(&info->cmap); - - pci_iounmap(dev, info->screen_base); - pci_iounmap(dev, par->mmio_base); - pci_release_regions(dev); -/* pci_disable_device(dev); */ - - framebuffer_release(info); - } -} - - -#ifdef CONFIG_PM -/* PCI suspend */ - -static int vt8623_pci_suspend(struct pci_dev* dev, pm_message_t state) -{ - struct fb_info *info = pci_get_drvdata(dev); - struct vt8623fb_info *par = info->par; - - dev_info(info->device, "suspend\n"); - - console_lock(); - mutex_lock(&(par->open_lock)); - - if ((state.event == PM_EVENT_FREEZE) || (par->ref_count == 0)) { - mutex_unlock(&(par->open_lock)); - console_unlock(); - return 0; - } - - fb_set_suspend(info, 1); - - pci_save_state(dev); - pci_disable_device(dev); - pci_set_power_state(dev, pci_choose_state(dev, state)); - - mutex_unlock(&(par->open_lock)); - console_unlock(); - - return 0; -} - - -/* PCI resume */ - -static int vt8623_pci_resume(struct pci_dev* dev) -{ - struct fb_info *info = pci_get_drvdata(dev); - struct vt8623fb_info *par = info->par; - - dev_info(info->device, "resume\n"); - - console_lock(); - mutex_lock(&(par->open_lock)); - - if (par->ref_count == 0) - goto fail; - - pci_set_power_state(dev, PCI_D0); - pci_restore_state(dev); - - if (pci_enable_device(dev)) - goto fail; - - pci_set_master(dev); - - vt8623fb_set_par(info); - fb_set_suspend(info, 0); - -fail: - mutex_unlock(&(par->open_lock)); - console_unlock(); - - return 0; -} -#else -#define vt8623_pci_suspend NULL -#define vt8623_pci_resume NULL -#endif /* CONFIG_PM */ - -/* List of boards that we are trying to support */ - -static struct pci_device_id vt8623_devices[] = { - {PCI_DEVICE(PCI_VENDOR_ID_VIA, 0x3122)}, - {0, 0, 0, 0, 0, 0, 0} -}; - -MODULE_DEVICE_TABLE(pci, vt8623_devices); - -static struct pci_driver vt8623fb_pci_driver = { - .name = "vt8623fb", - .id_table = vt8623_devices, - .probe = vt8623_pci_probe, - .remove = vt8623_pci_remove, - .suspend = vt8623_pci_suspend, - .resume = vt8623_pci_resume, -}; - -/* Cleanup */ - -static void __exit vt8623fb_cleanup(void) -{ - pr_debug("vt8623fb: cleaning up\n"); - pci_unregister_driver(&vt8623fb_pci_driver); -} - -/* Driver Initialisation */ - -static int __init vt8623fb_init(void) -{ - -#ifndef MODULE - char *option = NULL; - - if (fb_get_options("vt8623fb", &option)) - return -ENODEV; - - if (option && *option) - mode_option = option; -#endif - - pr_debug("vt8623fb: initializing\n"); - return pci_register_driver(&vt8623fb_pci_driver); -} - -/* ------------------------------------------------------------------------- */ - -/* Modularization */ - -module_init(vt8623fb_init); -module_exit(vt8623fb_cleanup); |