summaryrefslogtreecommitdiff
path: root/drivers/video/s3fb.c
diff options
context:
space:
mode:
authorTomi Valkeinen <tomi.valkeinen@ti.com>2014-02-13 17:31:38 +0400
committerTomi Valkeinen <tomi.valkeinen@ti.com>2014-04-17 09:10:19 +0400
commitf7018c21350204c4cf628462f229d44d03545254 (patch)
tree408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/s3fb.c
parentc26ef3eb3c11274bad1b64498d0a134f85755250 (diff)
downloadlinux-f7018c21350204c4cf628462f229d44d03545254.tar.xz
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/s3fb.c')
-rw-r--r--drivers/video/s3fb.c1597
1 files changed, 0 insertions, 1597 deletions
diff --git a/drivers/video/s3fb.c b/drivers/video/s3fb.c
deleted file mode 100644
index 9a3f8f1c6aab..000000000000
--- a/drivers/video/s3fb.c
+++ /dev/null
@@ -1,1597 +0,0 @@
-/*
- * linux/drivers/video/s3fb.c -- Frame buffer device driver for S3 Trio/Virge
- *
- * 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 David Boucher's viafb (http://davesdomain.org.uk/viafb/)
- * which is based on the code of neofb.
- */
-
-#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>
-
-#include <linux/i2c.h>
-#include <linux/i2c-algo-bit.h>
-
-#ifdef CONFIG_MTRR
-#include <asm/mtrr.h>
-#endif
-
-struct s3fb_info {
- int chip, rev, mclk_freq;
- int mtrr_reg;
- struct vgastate state;
- struct mutex open_lock;
- unsigned int ref_count;
- u32 pseudo_palette[16];
-#ifdef CONFIG_FB_S3_DDC
- u8 __iomem *mmio;
- bool ddc_registered;
- struct i2c_adapter ddc_adapter;
- struct i2c_algo_bit_data ddc_algo;
-#endif
-};
-
-
-/* ------------------------------------------------------------------------- */
-
-static const struct svga_fb_format s3fb_formats[] = {
- { 0, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 0,
- FB_TYPE_TEXT, FB_AUX_TEXT_SVGA_STEP4, FB_VISUAL_PSEUDOCOLOR, 8, 16},
- { 4, {0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0}, 0,
- FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_PSEUDOCOLOR, 8, 16},
- { 4, {0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0}, 1,
- FB_TYPE_INTERLEAVED_PLANES, 1, FB_VISUAL_PSEUDOCOLOR, 8, 16},
- { 8, {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, 0,
- FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_PSEUDOCOLOR, 4, 8},
- {16, {10, 5, 0}, {5, 5, 0}, {0, 5, 0}, {0, 0, 0}, 0,
- FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 2, 4},
- {16, {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0}, 0,
- FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 2, 4},
- {24, {16, 8, 0}, {8, 8, 0}, {0, 8, 0}, {0, 0, 0}, 0,
- FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 1, 2},
- {32, {16, 8, 0}, {8, 8, 0}, {0, 8, 0}, {0, 0, 0}, 0,
- FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 1, 2},
- SVGA_FORMAT_END
-};
-
-
-static const struct svga_pll s3_pll = {3, 129, 3, 33, 0, 3,
- 35000, 240000, 14318};
-static const struct svga_pll s3_trio3d_pll = {3, 129, 3, 31, 0, 4,
- 230000, 460000, 14318};
-
-static const int s3_memsizes[] = {4096, 0, 3072, 8192, 2048, 6144, 1024, 512};
-
-static const char * const s3_names[] = {"S3 Unknown", "S3 Trio32", "S3 Trio64", "S3 Trio64V+",
- "S3 Trio64UV+", "S3 Trio64V2/DX", "S3 Trio64V2/GX",
- "S3 Plato/PX", "S3 Aurora64V+", "S3 Virge",
- "S3 Virge/VX", "S3 Virge/DX", "S3 Virge/GX",
- "S3 Virge/GX2", "S3 Virge/GX2+", "",
- "S3 Trio3D/1X", "S3 Trio3D/2X", "S3 Trio3D/2X",
- "S3 Trio3D", "S3 Virge/MX"};
-
-#define CHIP_UNKNOWN 0x00
-#define CHIP_732_TRIO32 0x01
-#define CHIP_764_TRIO64 0x02
-#define CHIP_765_TRIO64VP 0x03
-#define CHIP_767_TRIO64UVP 0x04
-#define CHIP_775_TRIO64V2_DX 0x05
-#define CHIP_785_TRIO64V2_GX 0x06
-#define CHIP_551_PLATO_PX 0x07
-#define CHIP_M65_AURORA64VP 0x08
-#define CHIP_325_VIRGE 0x09
-#define CHIP_988_VIRGE_VX 0x0A
-#define CHIP_375_VIRGE_DX 0x0B
-#define CHIP_385_VIRGE_GX 0x0C
-#define CHIP_357_VIRGE_GX2 0x0D
-#define CHIP_359_VIRGE_GX2P 0x0E
-#define CHIP_360_TRIO3D_1X 0x10
-#define CHIP_362_TRIO3D_2X 0x11
-#define CHIP_368_TRIO3D_2X 0x12
-#define CHIP_365_TRIO3D 0x13
-#define CHIP_260_VIRGE_MX 0x14
-
-#define CHIP_XXX_TRIO 0x80
-#define CHIP_XXX_TRIO64V2_DXGX 0x81
-#define CHIP_XXX_VIRGE_DXGX 0x82
-#define CHIP_36X_TRIO3D_1X_2X 0x83
-
-#define CHIP_UNDECIDED_FLAG 0x80
-#define CHIP_MASK 0xFF
-
-#define MMIO_OFFSET 0x1000000
-#define MMIO_SIZE 0x10000
-
-/* CRT timing register sets */
-
-static const struct vga_regset s3_h_total_regs[] = {{0x00, 0, 7}, {0x5D, 0, 0}, VGA_REGSET_END};
-static const struct vga_regset s3_h_display_regs[] = {{0x01, 0, 7}, {0x5D, 1, 1}, VGA_REGSET_END};
-static const struct vga_regset s3_h_blank_start_regs[] = {{0x02, 0, 7}, {0x5D, 2, 2}, VGA_REGSET_END};
-static const struct vga_regset s3_h_blank_end_regs[] = {{0x03, 0, 4}, {0x05, 7, 7}, VGA_REGSET_END};
-static const struct vga_regset s3_h_sync_start_regs[] = {{0x04, 0, 7}, {0x5D, 4, 4}, VGA_REGSET_END};
-static const struct vga_regset s3_h_sync_end_regs[] = {{0x05, 0, 4}, VGA_REGSET_END};
-
-static const struct vga_regset s3_v_total_regs[] = {{0x06, 0, 7}, {0x07, 0, 0}, {0x07, 5, 5}, {0x5E, 0, 0}, VGA_REGSET_END};
-static const struct vga_regset s3_v_display_regs[] = {{0x12, 0, 7}, {0x07, 1, 1}, {0x07, 6, 6}, {0x5E, 1, 1}, VGA_REGSET_END};
-static const struct vga_regset s3_v_blank_start_regs[] = {{0x15, 0, 7}, {0x07, 3, 3}, {0x09, 5, 5}, {0x5E, 2, 2}, VGA_REGSET_END};
-static const struct vga_regset s3_v_blank_end_regs[] = {{0x16, 0, 7}, VGA_REGSET_END};
-static const struct vga_regset s3_v_sync_start_regs[] = {{0x10, 0, 7}, {0x07, 2, 2}, {0x07, 7, 7}, {0x5E, 4, 4}, VGA_REGSET_END};
-static const struct vga_regset s3_v_sync_end_regs[] = {{0x11, 0, 3}, VGA_REGSET_END};
-
-static const struct vga_regset s3_line_compare_regs[] = {{0x18, 0, 7}, {0x07, 4, 4}, {0x09, 6, 6}, {0x5E, 6, 6}, VGA_REGSET_END};
-static const struct vga_regset s3_start_address_regs[] = {{0x0d, 0, 7}, {0x0c, 0, 7}, {0x69, 0, 4}, VGA_REGSET_END};
-static const struct vga_regset s3_offset_regs[] = {{0x13, 0, 7}, {0x51, 4, 5}, VGA_REGSET_END}; /* set 0x43 bit 2 to 0 */
-
-static const struct vga_regset s3_dtpc_regs[] = {{0x3B, 0, 7}, {0x5D, 6, 6}, VGA_REGSET_END};
-
-static const struct svga_timing_regs s3_timing_regs = {
- s3_h_total_regs, s3_h_display_regs, s3_h_blank_start_regs,
- s3_h_blank_end_regs, s3_h_sync_start_regs, s3_h_sync_end_regs,
- s3_v_total_regs, s3_v_display_regs, s3_v_blank_start_regs,
- s3_v_blank_end_regs, s3_v_sync_start_regs, s3_v_sync_end_regs,
-};
-
-
-/* ------------------------------------------------------------------------- */
-
-/* Module parameters */
-
-
-static char *mode_option;
-
-#ifdef CONFIG_MTRR
-static int mtrr = 1;
-#endif
-
-static int fasttext = 1;
-
-
-MODULE_AUTHOR("(c) 2006-2007 Ondrej Zajicek <santiago@crfreenet.org>");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("fbdev driver for S3 Trio/Virge");
-
-module_param(mode_option, charp, 0444);
-MODULE_PARM_DESC(mode_option, "Default video mode ('640x480-8@60', etc)");
-module_param_named(mode, mode_option, charp, 0444);
-MODULE_PARM_DESC(mode, "Default video mode ('640x480-8@60', etc) (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
-
-module_param(fasttext, int, 0644);
-MODULE_PARM_DESC(fasttext, "Enable S3 fast text mode (1=enable, 0=disable, default=1)");
-
-
-/* ------------------------------------------------------------------------- */
-
-#ifdef CONFIG_FB_S3_DDC
-
-#define DDC_REG 0xaa /* Trio 3D/1X/2X */
-#define DDC_MMIO_REG 0xff20 /* all other chips */
-#define DDC_SCL_OUT (1 << 0)
-#define DDC_SDA_OUT (1 << 1)
-#define DDC_SCL_IN (1 << 2)
-#define DDC_SDA_IN (1 << 3)
-#define DDC_DRIVE_EN (1 << 4)
-
-static bool s3fb_ddc_needs_mmio(int chip)
-{
- return !(chip == CHIP_360_TRIO3D_1X ||
- chip == CHIP_362_TRIO3D_2X ||
- chip == CHIP_368_TRIO3D_2X);
-}
-
-static u8 s3fb_ddc_read(struct s3fb_info *par)
-{
- if (s3fb_ddc_needs_mmio(par->chip))
- return readb(par->mmio + DDC_MMIO_REG);
- else
- return vga_rcrt(par->state.vgabase, DDC_REG);
-}
-
-static void s3fb_ddc_write(struct s3fb_info *par, u8 val)
-{
- if (s3fb_ddc_needs_mmio(par->chip))
- writeb(val, par->mmio + DDC_MMIO_REG);
- else
- vga_wcrt(par->state.vgabase, DDC_REG, val);
-}
-
-static void s3fb_ddc_setscl(void *data, int val)
-{
- struct s3fb_info *par = data;
- unsigned char reg;
-
- reg = s3fb_ddc_read(par) | DDC_DRIVE_EN;
- if (val)
- reg |= DDC_SCL_OUT;
- else
- reg &= ~DDC_SCL_OUT;
- s3fb_ddc_write(par, reg);
-}
-
-static void s3fb_ddc_setsda(void *data, int val)
-{
- struct s3fb_info *par = data;
- unsigned char reg;
-
- reg = s3fb_ddc_read(par) | DDC_DRIVE_EN;
- if (val)
- reg |= DDC_SDA_OUT;
- else
- reg &= ~DDC_SDA_OUT;
- s3fb_ddc_write(par, reg);
-}
-
-static int s3fb_ddc_getscl(void *data)
-{
- struct s3fb_info *par = data;
-
- return !!(s3fb_ddc_read(par) & DDC_SCL_IN);
-}
-
-static int s3fb_ddc_getsda(void *data)
-{
- struct s3fb_info *par = data;
-
- return !!(s3fb_ddc_read(par) & DDC_SDA_IN);
-}
-
-static int s3fb_setup_ddc_bus(struct fb_info *info)
-{
- struct s3fb_info *par = info->par;
-
- strlcpy(par->ddc_adapter.name, info->fix.id,
- sizeof(par->ddc_adapter.name));
- par->ddc_adapter.owner = THIS_MODULE;
- par->ddc_adapter.class = I2C_CLASS_DDC;
- par->ddc_adapter.algo_data = &par->ddc_algo;
- par->ddc_adapter.dev.parent = info->device;
- par->ddc_algo.setsda = s3fb_ddc_setsda;
- par->ddc_algo.setscl = s3fb_ddc_setscl;
- par->ddc_algo.getsda = s3fb_ddc_getsda;
- par->ddc_algo.getscl = s3fb_ddc_getscl;
- par->ddc_algo.udelay = 10;
- par->ddc_algo.timeout = 20;
- par->ddc_algo.data = par;
-
- i2c_set_adapdata(&par->ddc_adapter, par);
-
- /*
- * some Virge cards have external MUX to switch chip I2C bus between
- * DDC and extension pins - switch it do DDC
- */
-/* vga_wseq(par->state.vgabase, 0x08, 0x06); - not needed, already unlocked */
- if (par->chip == CHIP_357_VIRGE_GX2 ||
- par->chip == CHIP_359_VIRGE_GX2P ||
- par->chip == CHIP_260_VIRGE_MX)
- svga_wseq_mask(par->state.vgabase, 0x0d, 0x01, 0x03);
- else
- svga_wseq_mask(par->state.vgabase, 0x0d, 0x00, 0x03);
- /* some Virge need this or the DDC is ignored */
- svga_wcrt_mask(par->state.vgabase, 0x5c, 0x03, 0x03);
-
- return i2c_bit_add_bus(&par->ddc_adapter);
-}
-#endif /* CONFIG_FB_S3_DDC */
-
-
-/* ------------------------------------------------------------------------- */
-
-/* Set font in S3 fast text mode */
-
-static void s3fb_settile_fast(struct fb_info *info, struct fb_tilemap *map)
-{
- const u8 *font = map->data;
- u8 __iomem *fb = (u8 __iomem *) info->screen_base;
- int i, c;
-
- if ((map->width != 8) || (map->height != 16) ||
- (map->depth != 1) || (map->length != 256)) {
- fb_err(info, "unsupported font parameters: width %d, height %d, depth %d, length %d\n",
- map->width, map->height, map->depth, map->length);
- return;
- }
-
- fb += 2;
- for (i = 0; i < map->height; i++) {
- for (c = 0; c < map->length; c++) {
- fb_writeb(font[c * map->height + i], fb + c * 4);
- }
- fb += 1024;
- }
-}
-
-static void s3fb_tilecursor(struct fb_info *info, struct fb_tilecursor *cursor)
-{
- struct s3fb_info *par = info->par;
-
- svga_tilecursor(par->state.vgabase, info, cursor);
-}
-
-static struct fb_tile_ops s3fb_tile_ops = {
- .fb_settile = svga_settile,
- .fb_tilecopy = svga_tilecopy,
- .fb_tilefill = svga_tilefill,
- .fb_tileblit = svga_tileblit,
- .fb_tilecursor = s3fb_tilecursor,
- .fb_get_tilemax = svga_get_tilemax,
-};
-
-static struct fb_tile_ops s3fb_fast_tile_ops = {
- .fb_settile = s3fb_settile_fast,
- .fb_tilecopy = svga_tilecopy,
- .fb_tilefill = svga_tilefill,
- .fb_tileblit = svga_tileblit,
- .fb_tilecursor = s3fb_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;
-}
-
-/* s3fb_iplan_imageblit silently assumes that almost everything is 8-pixel aligned */
-static void s3fb_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;
- }
-
-}
-
-/* s3fb_iplan_fillrect silently assumes that almost everything is 8-pixel aligned */
-static void s3fb_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;
-}
-
-/* s3fb_cfb4_imageblit silently assumes that almost everything is 8-pixel aligned */
-static void s3fb_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 s3fb_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)
- s3fb_iplan_imageblit(info, image);
- else
- s3fb_cfb4_imageblit(info, image);
- } else
- cfb_imageblit(info, image);
-}
-
-static void s3fb_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))
- s3fb_iplan_fillrect(info, rect);
- else
- cfb_fillrect(info, rect);
-}
-
-
-
-/* ------------------------------------------------------------------------- */
-
-
-static void s3_set_pixclock(struct fb_info *info, u32 pixclock)
-{
- struct s3fb_info *par = info->par;
- u16 m, n, r;
- u8 regval;
- int rv;
-
- rv = svga_compute_pll((par->chip == CHIP_365_TRIO3D) ? &s3_trio3d_pll : &s3_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 S3 clock registers */
- if (par->chip == CHIP_357_VIRGE_GX2 ||
- par->chip == CHIP_359_VIRGE_GX2P ||
- par->chip == CHIP_360_TRIO3D_1X ||
- par->chip == CHIP_362_TRIO3D_2X ||
- par->chip == CHIP_368_TRIO3D_2X ||
- par->chip == CHIP_260_VIRGE_MX) {
- vga_wseq(par->state.vgabase, 0x12, (n - 2) | ((r & 3) << 6)); /* n and two bits of r */
- vga_wseq(par->state.vgabase, 0x29, r >> 2); /* remaining highest bit of r */
- } else
- vga_wseq(par->state.vgabase, 0x12, (n - 2) | (r << 5));
- vga_wseq(par->state.vgabase, 0x13, m - 2);
-
- udelay(1000);
-
- /* Activate clock - write 0, 1, 0 to seq/15 bit 5 */
- regval = vga_rseq (par->state.vgabase, 0x15); /* | 0x80; */
- vga_wseq(par->state.vgabase, 0x15, regval & ~(1<<5));
- vga_wseq(par->state.vgabase, 0x15, regval | (1<<5));
- vga_wseq(par->state.vgabase, 0x15, regval & ~(1<<5));
-}
-
-
-/* Open framebuffer */
-
-static int s3fb_open(struct fb_info *info, int user)
-{
- struct s3fb_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 = 0x70;
- par->state.num_seq = 0x20;
- save_vga(&(par->state));
- }
-
- par->ref_count++;
- mutex_unlock(&(par->open_lock));
-
- return 0;
-}
-
-/* Close framebuffer */
-
-static int s3fb_release(struct fb_info *info, int user)
-{
- struct s3fb_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;
-}
-
-/* Validate passed in var */
-
-static int s3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
-{
- struct s3fb_info *par = info->par;
- int rv, mem, step;
- u16 m, n, r;
-
- /* Find appropriate format */
- rv = svga_match_format (s3fb_formats, var, NULL);
-
- /* 32bpp mode is not supported on VIRGE VX,
- 24bpp is not supported on others */
- if ((par->chip == CHIP_988_VIRGE_VX) ? (rv == 7) : (rv == 6))
- rv = -EINVAL;
-
- 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 = s3fb_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 , %u kB available)\n",
- mem >> 10, (unsigned int) (info->screen_size >> 10));
- return -EINVAL;
- }
-
- rv = svga_check_timings (&s3_timing_regs, var, info->node);
- if (rv < 0) {
- fb_err(info, "invalid timings requested\n");
- return rv;
- }
-
- rv = svga_compute_pll(&s3_pll, PICOS2KHZ(var->pixclock), &m, &n, &r,
- info->node);
- if (rv < 0) {
- fb_err(info, "invalid pixclock value requested\n");
- return rv;
- }
-
- return 0;
-}
-
-/* Set video mode from par */
-
-static int s3fb_set_par(struct fb_info *info)
-{
- struct s3fb_info *par = info->par;
- u32 value, mode, hmul, offset_value, screen_size, multiplex, dbytes;
- u32 bpp = info->var.bits_per_pixel;
- u32 htotal, hsstart;
-
- 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;
- 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 = fasttext ? &s3fb_fast_tile_ops : &s3fb_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;
- 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 */
- vga_wcrt(par->state.vgabase, 0x38, 0x48);
- vga_wcrt(par->state.vgabase, 0x39, 0xA5);
- vga_wseq(par->state.vgabase, 0x08, 0x06);
- svga_wcrt_mask(par->state.vgabase, 0x11, 0x00, 0x80);
-
- /* Blank screen and turn off sync */
- svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
- 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, s3_line_compare_regs, 0xFFFFFFFF);
- svga_wcrt_multi(par->state.vgabase, s3_start_address_regs, 0);
-
- /* S3 specific initialization */
- svga_wcrt_mask(par->state.vgabase, 0x58, 0x10, 0x10); /* enable linear framebuffer */
- svga_wcrt_mask(par->state.vgabase, 0x31, 0x08, 0x08); /* enable sequencer access to framebuffer above 256 kB */
-
-/* svga_wcrt_mask(par->state.vgabase, 0x33, 0x08, 0x08); */ /* DDR ? */
-/* svga_wcrt_mask(par->state.vgabase, 0x43, 0x01, 0x01); */ /* DDR ? */
- svga_wcrt_mask(par->state.vgabase, 0x33, 0x00, 0x08); /* no DDR ? */
- svga_wcrt_mask(par->state.vgabase, 0x43, 0x00, 0x01); /* no DDR ? */
-
- svga_wcrt_mask(par->state.vgabase, 0x5D, 0x00, 0x28); /* Clear strange HSlen bits */
-
-/* svga_wcrt_mask(par->state.vgabase, 0x58, 0x03, 0x03); */
-
-/* svga_wcrt_mask(par->state.vgabase, 0x53, 0x12, 0x13); */ /* enable MMIO */
-/* svga_wcrt_mask(par->state.vgabase, 0x40, 0x08, 0x08); */ /* enable write buffer */
-
-
- /* Set the offset register */
- fb_dbg(info, "offset register : %d\n", offset_value);
- svga_wcrt_multi(par->state.vgabase, s3_offset_regs, offset_value);
-
- if (par->chip != CHIP_357_VIRGE_GX2 &&
- par->chip != CHIP_359_VIRGE_GX2P &&
- par->chip != CHIP_360_TRIO3D_1X &&
- par->chip != CHIP_362_TRIO3D_2X &&
- par->chip != CHIP_368_TRIO3D_2X &&
- par->chip != CHIP_260_VIRGE_MX) {
- vga_wcrt(par->state.vgabase, 0x54, 0x18); /* M parameter */
- vga_wcrt(par->state.vgabase, 0x60, 0xff); /* N parameter */
- vga_wcrt(par->state.vgabase, 0x61, 0xff); /* L parameter */
- vga_wcrt(par->state.vgabase, 0x62, 0xff); /* L parameter */
- }
-
- vga_wcrt(par->state.vgabase, 0x3A, 0x35);
- svga_wattr(par->state.vgabase, 0x33, 0x00);
-
- 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);
-
- if (info->var.vmode & FB_VMODE_INTERLACED)
- svga_wcrt_mask(par->state.vgabase, 0x42, 0x20, 0x20);
- else
- svga_wcrt_mask(par->state.vgabase, 0x42, 0x00, 0x20);
-
- /* Disable hardware graphics cursor */
- svga_wcrt_mask(par->state.vgabase, 0x45, 0x00, 0x01);
- /* Disable Streams engine */
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x00, 0x0C);
-
- mode = svga_match_format(s3fb_formats, &(info->var), &(info->fix));
-
- /* S3 virge DX hack */
- if (par->chip == CHIP_375_VIRGE_DX) {
- vga_wcrt(par->state.vgabase, 0x86, 0x80);
- vga_wcrt(par->state.vgabase, 0x90, 0x00);
- }
-
- /* S3 virge VX hack */
- if (par->chip == CHIP_988_VIRGE_VX) {
- vga_wcrt(par->state.vgabase, 0x50, 0x00);
- vga_wcrt(par->state.vgabase, 0x67, 0x50);
- msleep(10); /* screen remains blank sometimes without this */
- vga_wcrt(par->state.vgabase, 0x63, (mode <= 2) ? 0x90 : 0x09);
- vga_wcrt(par->state.vgabase, 0x66, 0x90);
- }
-
- if (par->chip == CHIP_357_VIRGE_GX2 ||
- par->chip == CHIP_359_VIRGE_GX2P ||
- par->chip == CHIP_360_TRIO3D_1X ||
- par->chip == CHIP_362_TRIO3D_2X ||
- par->chip == CHIP_368_TRIO3D_2X ||
- par->chip == CHIP_365_TRIO3D ||
- par->chip == CHIP_375_VIRGE_DX ||
- par->chip == CHIP_385_VIRGE_GX ||
- par->chip == CHIP_260_VIRGE_MX) {
- dbytes = info->var.xres * ((bpp+7)/8);
- vga_wcrt(par->state.vgabase, 0x91, (dbytes + 7) / 8);
- vga_wcrt(par->state.vgabase, 0x90, (((dbytes + 7) / 8) >> 8) | 0x80);
-
- vga_wcrt(par->state.vgabase, 0x66, 0x81);
- }
-
- if (par->chip == CHIP_357_VIRGE_GX2 ||
- par->chip == CHIP_359_VIRGE_GX2P ||
- par->chip == CHIP_360_TRIO3D_1X ||
- par->chip == CHIP_362_TRIO3D_2X ||
- par->chip == CHIP_368_TRIO3D_2X ||
- par->chip == CHIP_260_VIRGE_MX)
- vga_wcrt(par->state.vgabase, 0x34, 0x00);
- else /* enable Data Transfer Position Control (DTPC) */
- vga_wcrt(par->state.vgabase, 0x34, 0x10);
-
- svga_wcrt_mask(par->state.vgabase, 0x31, 0x00, 0x40);
- multiplex = 0;
- hmul = 1;
-
- /* Set mode-specific register values */
- switch (mode) {
- case 0:
- fb_dbg(info, "text mode\n");
- svga_set_textmode_vga_regs(par->state.vgabase);
-
- /* Set additional registers like in 8-bit mode */
- svga_wcrt_mask(par->state.vgabase, 0x50, 0x00, 0x30);
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x00, 0xF0);
-
- /* Disable enhanced mode */
- svga_wcrt_mask(par->state.vgabase, 0x3A, 0x00, 0x30);
-
- if (fasttext) {
- fb_dbg(info, "high speed text mode set\n");
- svga_wcrt_mask(par->state.vgabase, 0x31, 0x40, 0x40);
- }
- break;
- case 1:
- fb_dbg(info, "4 bit pseudocolor\n");
- vga_wgfx(par->state.vgabase, VGA_GFX_MODE, 0x40);
-
- /* Set additional registers like in 8-bit mode */
- svga_wcrt_mask(par->state.vgabase, 0x50, 0x00, 0x30);
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x00, 0xF0);
-
- /* disable enhanced mode */
- svga_wcrt_mask(par->state.vgabase, 0x3A, 0x00, 0x30);
- break;
- case 2:
- fb_dbg(info, "4 bit pseudocolor, planar\n");
-
- /* Set additional registers like in 8-bit mode */
- svga_wcrt_mask(par->state.vgabase, 0x50, 0x00, 0x30);
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x00, 0xF0);
-
- /* disable enhanced mode */
- svga_wcrt_mask(par->state.vgabase, 0x3A, 0x00, 0x30);
- break;
- case 3:
- fb_dbg(info, "8 bit pseudocolor\n");
- svga_wcrt_mask(par->state.vgabase, 0x50, 0x00, 0x30);
- if (info->var.pixclock > 20000 ||
- par->chip == CHIP_357_VIRGE_GX2 ||
- par->chip == CHIP_359_VIRGE_GX2P ||
- par->chip == CHIP_360_TRIO3D_1X ||
- par->chip == CHIP_362_TRIO3D_2X ||
- par->chip == CHIP_368_TRIO3D_2X ||
- par->chip == CHIP_260_VIRGE_MX)
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x00, 0xF0);
- else {
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x10, 0xF0);
- multiplex = 1;
- }
- break;
- case 4:
- fb_dbg(info, "5/5/5 truecolor\n");
- if (par->chip == CHIP_988_VIRGE_VX) {
- if (info->var.pixclock > 20000)
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x20, 0xF0);
- else
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x30, 0xF0);
- } else if (par->chip == CHIP_365_TRIO3D) {
- svga_wcrt_mask(par->state.vgabase, 0x50, 0x10, 0x30);
- if (info->var.pixclock > 8695) {
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x30, 0xF0);
- hmul = 2;
- } else {
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x20, 0xF0);
- multiplex = 1;
- }
- } else {
- svga_wcrt_mask(par->state.vgabase, 0x50, 0x10, 0x30);
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x30, 0xF0);
- if (par->chip != CHIP_357_VIRGE_GX2 &&
- par->chip != CHIP_359_VIRGE_GX2P &&
- par->chip != CHIP_360_TRIO3D_1X &&
- par->chip != CHIP_362_TRIO3D_2X &&
- par->chip != CHIP_368_TRIO3D_2X &&
- par->chip != CHIP_260_VIRGE_MX)
- hmul = 2;
- }
- break;
- case 5:
- fb_dbg(info, "5/6/5 truecolor\n");
- if (par->chip == CHIP_988_VIRGE_VX) {
- if (info->var.pixclock > 20000)
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x40, 0xF0);
- else
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x50, 0xF0);
- } else if (par->chip == CHIP_365_TRIO3D) {
- svga_wcrt_mask(par->state.vgabase, 0x50, 0x10, 0x30);
- if (info->var.pixclock > 8695) {
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x50, 0xF0);
- hmul = 2;
- } else {
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x40, 0xF0);
- multiplex = 1;
- }
- } else {
- svga_wcrt_mask(par->state.vgabase, 0x50, 0x10, 0x30);
- svga_wcrt_mask(par->state.vgabase, 0x67, 0x50, 0xF0);
- if (par->chip != CHIP_357_VIRGE_GX2 &&
- par->chip != CHIP_359_VIRGE_GX2P &&
- par->chip != CHIP_360_TRIO3D_1X &&
- par->chip != CHIP_362_TRIO3D_2X &&
- par->chip != CHIP_368_TRIO3D_2X &&
- par->chip != CHIP_260_VIRGE_MX)
- hmul = 2;
- }
- break;
- case 6:
- /* VIRGE VX case */
- fb_dbg(info, "8/8/8 truecolor\n");
- svga_wcrt_mask(par->state.vgabase, 0x67, 0xD0, 0xF0);
- break;
- case 7:
- fb_dbg(info, "8/8/8/8 truecolor\n");
- svga_wcrt_mask(par->state.vgabase, 0x50, 0x30, 0x30);
- svga_wcrt_mask(par->state.vgabase, 0x67, 0xD0, 0xF0);
- break;
- default:
- fb_err(info, "unsupported mode - bug\n");
- return -EINVAL;
- }
-
- if (par->chip != CHIP_988_VIRGE_VX) {
- svga_wseq_mask(par->state.vgabase, 0x15, multiplex ? 0x10 : 0x00, 0x10);
- svga_wseq_mask(par->state.vgabase, 0x18, multiplex ? 0x80 : 0x00, 0x80);
- }
-
- s3_set_pixclock(info, info->var.pixclock);
- svga_set_timings(par->state.vgabase, &s3_timing_regs, &(info->var), hmul, 1,
- (info->var.vmode & FB_VMODE_DOUBLE) ? 2 : 1,
- (info->var.vmode & FB_VMODE_INTERLACED) ? 2 : 1,
- hmul, info->node);
-
- /* Set interlaced mode start/end register */
- htotal = info->var.xres + info->var.left_margin + info->var.right_margin + info->var.hsync_len;
- htotal = ((htotal * hmul) / 8) - 5;
- vga_wcrt(par->state.vgabase, 0x3C, (htotal + 1) / 2);
-
- /* Set Data Transfer Position */
- hsstart = ((info->var.xres + info->var.right_margin) * hmul) / 8;
- /* + 2 is needed for Virge/VX, does no harm on other cards */
- value = clamp((htotal + hsstart + 1) / 2 + 2, hsstart + 4, htotal + 1);
- svga_wcrt_multi(par->state.vgabase, s3_dtpc_regs, value);
-
- memset_io(info->screen_base, 0x00, screen_size);
- /* Device and screen back on */
- svga_wcrt_mask(par->state.vgabase, 0x17, 0x80, 0x80);
- svga_wseq_mask(par->state.vgabase, 0x01, 0x00, 0x20);
-
- return 0;
-}
-
-/* Set a colour register */
-
-static int s3fb_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;
-
- if ((fb->var.bits_per_pixel == 4) &&
- (fb->var.nonstd == 0)) {
- outb(0xF0, VGA_PEL_MSK);
- outb(regno*16, VGA_PEL_IW);
- } else {
- 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;
-
- ((u32*)fb->pseudo_palette)[regno] = ((red & 0xFF00) << 8) |
- (green & 0xFF00) | ((blue & 0xFF00) >> 8);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-
-/* Set the display blanking state */
-
-static int s3fb_blank(int blank_mode, struct fb_info *info)
-{
- struct s3fb_info *par = info->par;
-
- switch (blank_mode) {
- case FB_BLANK_UNBLANK:
- fb_dbg(info, "unblank\n");
- svga_wcrt_mask(par->state.vgabase, 0x56, 0x00, 0x06);
- 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, 0x56, 0x00, 0x06);
- svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
- break;
- case FB_BLANK_HSYNC_SUSPEND:
- fb_dbg(info, "hsync\n");
- svga_wcrt_mask(par->state.vgabase, 0x56, 0x02, 0x06);
- svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
- break;
- case FB_BLANK_VSYNC_SUSPEND:
- fb_dbg(info, "vsync\n");
- svga_wcrt_mask(par->state.vgabase, 0x56, 0x04, 0x06);
- svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
- break;
- case FB_BLANK_POWERDOWN:
- fb_dbg(info, "sync down\n");
- svga_wcrt_mask(par->state.vgabase, 0x56, 0x06, 0x06);
- svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
- break;
- }
-
- return 0;
-}
-
-
-/* Pan the display */
-
-static int s3fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
-{
- struct s3fb_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 / 2)
- + (var->xoffset / 2);
- offset = offset >> 2;
- } else {
- offset = (var->yoffset * info->fix.line_length) +
- (var->xoffset * info->var.bits_per_pixel / 8);
- offset = offset >> 2;
- }
-
- /* Set the offset */
- svga_wcrt_multi(par->state.vgabase, s3_start_address_regs, offset);
-
- return 0;
-}
-
-/* ------------------------------------------------------------------------- */
-
-/* Frame buffer operations */
-
-static struct fb_ops s3fb_ops = {
- .owner = THIS_MODULE,
- .fb_open = s3fb_open,
- .fb_release = s3fb_release,
- .fb_check_var = s3fb_check_var,
- .fb_set_par = s3fb_set_par,
- .fb_setcolreg = s3fb_setcolreg,
- .fb_blank = s3fb_blank,
- .fb_pan_display = s3fb_pan_display,
- .fb_fillrect = s3fb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = s3fb_imageblit,
- .fb_get_caps = svga_get_caps,
-};
-
-/* ------------------------------------------------------------------------- */
-
-static int s3_identification(struct s3fb_info *par)
-{
- int chip = par->chip;
-
- if (chip == CHIP_XXX_TRIO) {
- u8 cr30 = vga_rcrt(par->state.vgabase, 0x30);
- u8 cr2e = vga_rcrt(par->state.vgabase, 0x2e);
- u8 cr2f = vga_rcrt(par->state.vgabase, 0x2f);
-
- if ((cr30 == 0xE0) || (cr30 == 0xE1)) {
- if (cr2e == 0x10)
- return CHIP_732_TRIO32;
- if (cr2e == 0x11) {
- if (! (cr2f & 0x40))
- return CHIP_764_TRIO64;
- else
- return CHIP_765_TRIO64VP;
- }
- }
- }
-
- if (chip == CHIP_XXX_TRIO64V2_DXGX) {
- u8 cr6f = vga_rcrt(par->state.vgabase, 0x6f);
-
- if (! (cr6f & 0x01))
- return CHIP_775_TRIO64V2_DX;
- else
- return CHIP_785_TRIO64V2_GX;
- }
-
- if (chip == CHIP_XXX_VIRGE_DXGX) {
- u8 cr6f = vga_rcrt(par->state.vgabase, 0x6f);
-
- if (! (cr6f & 0x01))
- return CHIP_375_VIRGE_DX;
- else
- return CHIP_385_VIRGE_GX;
- }
-
- if (chip == CHIP_36X_TRIO3D_1X_2X) {
- switch (vga_rcrt(par->state.vgabase, 0x2f)) {
- case 0x00:
- return CHIP_360_TRIO3D_1X;
- case 0x01:
- return CHIP_362_TRIO3D_2X;
- case 0x02:
- return CHIP_368_TRIO3D_2X;
- }
- }
-
- return CHIP_UNKNOWN;
-}
-
-
-/* PCI probe */
-
-static int s3_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 s3fb_info *par;
- int rc;
- u8 regval, cr38, cr39;
- bool found = false;
-
- /* 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 s3fb_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 = &s3fb_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, "s3fb");
- 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);
-
- /* 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;
- }
-
- 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;
-
- /* Unlock regs */
- cr38 = vga_rcrt(par->state.vgabase, 0x38);
- cr39 = vga_rcrt(par->state.vgabase, 0x39);
- vga_wseq(par->state.vgabase, 0x08, 0x06);
- vga_wcrt(par->state.vgabase, 0x38, 0x48);
- vga_wcrt(par->state.vgabase, 0x39, 0xA5);
-
- /* Identify chip type */
- par->chip = id->driver_data & CHIP_MASK;
- par->rev = vga_rcrt(par->state.vgabase, 0x2f);
- if (par->chip & CHIP_UNDECIDED_FLAG)
- par->chip = s3_identification(par);
-
- /* Find how many physical memory there is on card */
- /* 0x36 register is accessible even if other registers are locked */
- regval = vga_rcrt(par->state.vgabase, 0x36);
- if (par->chip == CHIP_360_TRIO3D_1X ||
- par->chip == CHIP_362_TRIO3D_2X ||
- par->chip == CHIP_368_TRIO3D_2X ||
- par->chip == CHIP_365_TRIO3D) {
- switch ((regval & 0xE0) >> 5) {
- case 0: /* 8MB -- only 4MB usable for display */
- case 1: /* 4MB with 32-bit bus */
- case 2: /* 4MB */
- info->screen_size = 4 << 20;
- break;
- case 4: /* 2MB on 365 Trio3D */
- case 6: /* 2MB */
- info->screen_size = 2 << 20;
- break;
- }
- } else if (par->chip == CHIP_357_VIRGE_GX2 ||
- par->chip == CHIP_359_VIRGE_GX2P ||
- par->chip == CHIP_260_VIRGE_MX) {
- switch ((regval & 0xC0) >> 6) {
- case 1: /* 4MB */
- info->screen_size = 4 << 20;
- break;
- case 3: /* 2MB */
- info->screen_size = 2 << 20;
- break;
- }
- } else if (par->chip == CHIP_988_VIRGE_VX) {
- switch ((regval & 0x60) >> 5) {
- case 0: /* 2MB */
- info->screen_size = 2 << 20;
- break;
- case 1: /* 4MB */
- info->screen_size = 4 << 20;
- break;
- case 2: /* 6MB */
- info->screen_size = 6 << 20;
- break;
- case 3: /* 8MB */
- info->screen_size = 8 << 20;
- break;
- }
- /* off-screen memory */
- regval = vga_rcrt(par->state.vgabase, 0x37);
- switch ((regval & 0x60) >> 5) {
- case 1: /* 4MB */
- info->screen_size -= 4 << 20;
- break;
- case 2: /* 2MB */
- info->screen_size -= 2 << 20;
- break;
- }
- } else
- info->screen_size = s3_memsizes[regval >> 5] << 10;
- info->fix.smem_len = info->screen_size;
-
- /* Find MCLK frequency */
- regval = vga_rseq(par->state.vgabase, 0x10);
- par->mclk_freq = ((vga_rseq(par->state.vgabase, 0x11) + 2) * 14318) / ((regval & 0x1F) + 2);
- par->mclk_freq = par->mclk_freq >> (regval >> 5);
-
- /* Restore locks */
- vga_wcrt(par->state.vgabase, 0x38, cr38);
- vga_wcrt(par->state.vgabase, 0x39, cr39);
-
- strcpy(info->fix.id, s3_names [par->chip]);
- info->fix.mmio_start = 0;
- info->fix.mmio_len = 0;
- 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);
- info->var.bits_per_pixel = 8;
-
-#ifdef CONFIG_FB_S3_DDC
- /* Enable MMIO if needed */
- if (s3fb_ddc_needs_mmio(par->chip)) {
- par->mmio = ioremap(info->fix.smem_start + MMIO_OFFSET, MMIO_SIZE);
- if (par->mmio)
- svga_wcrt_mask(par->state.vgabase, 0x53, 0x08, 0x08); /* enable MMIO */
- else
- dev_err(info->device, "unable to map MMIO at 0x%lx, disabling DDC",
- info->fix.smem_start + MMIO_OFFSET);
- }
- if (!s3fb_ddc_needs_mmio(par->chip) || par->mmio)
- if (s3fb_setup_ddc_bus(info) == 0) {
- u8 *edid = fb_ddc_read(&par->ddc_adapter);
- par->ddc_registered = true;
- if (edid) {
- fb_edid_to_monspecs(edid, &info->monspecs);
- kfree(edid);
- if (!info->monspecs.modedb)
- dev_err(info->device, "error getting mode database\n");
- else {
- const struct fb_videomode *m;
-
- fb_videomode_to_modelist(info->monspecs.modedb,
- info->monspecs.modedb_len,
- &info->modelist);
- m = fb_find_best_display(&info->monspecs, &info->modelist);
- if (m) {
- fb_videomode_to_var(&info->var, m);
- /* fill all other info->var's fields */
- if (s3fb_check_var(&info->var, info) == 0)
- found = true;
- }
- }
- }
- }
-#endif
- if (!mode_option && !found)
- mode_option = "640x480-8@60";
-
- /* Prepare startup mode */
- if (mode_option) {
- rc = fb_find_mode(&info->var, info, mode_option,
- info->monspecs.modedb, info->monspecs.modedb_len,
- NULL, info->var.bits_per_pixel);
- if (!rc || rc == 4) {
- rc = -EINVAL;
- dev_err(info->device, "mode %s not found\n", mode_option);
- fb_destroy_modedb(info->monspecs.modedb);
- info->monspecs.modedb = NULL;
- goto err_find_mode;
- }
- }
-
- fb_destroy_modedb(info->monspecs.modedb);
- info->monspecs.modedb = NULL;
-
- /* maximize virtual vertical size for fast scrolling */
- info->var.yres_virtual = info->fix.smem_len * 8 /
- (info->var.bits_per_pixel * info->var.xres_virtual);
- if (info->var.yres_virtual < info->var.yres) {
- dev_err(info->device, "virtual vertical size smaller than real\n");
- rc = -EINVAL;
- 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, %d MHz MCLK\n",
- info->fix.id, pci_name(dev),
- info->fix.smem_len >> 20, (par->mclk_freq + 500) / 1000);
-
- if (par->chip == CHIP_UNKNOWN)
- fb_info(info, "unknown chip, CR2D=%x, CR2E=%x, CRT2F=%x, CRT30=%x\n",
- vga_rcrt(par->state.vgabase, 0x2d),
- vga_rcrt(par->state.vgabase, 0x2e),
- vga_rcrt(par->state.vgabase, 0x2f),
- vga_rcrt(par->state.vgabase, 0x30));
-
- /* 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:
-#ifdef CONFIG_FB_S3_DDC
- if (par->ddc_registered)
- i2c_del_adapter(&par->ddc_adapter);
- if (par->mmio)
- iounmap(par->mmio);
-#endif
- pci_iounmap(dev, info->screen_base);
-err_iomap:
- pci_release_regions(dev);
-err_request_regions:
-/* pci_disable_device(dev); */
-err_enable_device:
- framebuffer_release(info);
- return rc;
-}
-
-
-/* PCI remove */
-
-static void s3_pci_remove(struct pci_dev *dev)
-{
- struct fb_info *info = pci_get_drvdata(dev);
- struct s3fb_info __maybe_unused *par = info->par;
-
- if (info) {
-
-#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);
-
-#ifdef CONFIG_FB_S3_DDC
- if (par->ddc_registered)
- i2c_del_adapter(&par->ddc_adapter);
- if (par->mmio)
- iounmap(par->mmio);
-#endif
-
- pci_iounmap(dev, info->screen_base);
- pci_release_regions(dev);
-/* pci_disable_device(dev); */
-
- framebuffer_release(info);
- }
-}
-
-/* PCI suspend */
-
-static int s3_pci_suspend(struct pci_dev* dev, pm_message_t state)
-{
- struct fb_info *info = pci_get_drvdata(dev);
- struct s3fb_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 s3_pci_resume(struct pci_dev* dev)
-{
- struct fb_info *info = pci_get_drvdata(dev);
- struct s3fb_info *par = info->par;
- int err;
-
- dev_info(info->device, "resume\n");
-
- console_lock();
- mutex_lock(&(par->open_lock));
-
- if (par->ref_count == 0) {
- mutex_unlock(&(par->open_lock));
- console_unlock();
- return 0;
- }
-
- pci_set_power_state(dev, PCI_D0);
- pci_restore_state(dev);
- err = pci_enable_device(dev);
- if (err) {
- mutex_unlock(&(par->open_lock));
- console_unlock();
- dev_err(info->device, "error %d enabling device for resume\n", err);
- return err;
- }
- pci_set_master(dev);
-
- s3fb_set_par(info);
- fb_set_suspend(info, 0);
-
- mutex_unlock(&(par->open_lock));
- console_unlock();
-
- return 0;
-}
-
-
-/* List of boards that we are trying to support */
-
-static struct pci_device_id s3_devices[] = {
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8810), .driver_data = CHIP_XXX_TRIO},
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8811), .driver_data = CHIP_XXX_TRIO},
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8812), .driver_data = CHIP_M65_AURORA64VP},
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8814), .driver_data = CHIP_767_TRIO64UVP},
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8901), .driver_data = CHIP_XXX_TRIO64V2_DXGX},
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8902), .driver_data = CHIP_551_PLATO_PX},
-
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x5631), .driver_data = CHIP_325_VIRGE},
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x883D), .driver_data = CHIP_988_VIRGE_VX},
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A01), .driver_data = CHIP_XXX_VIRGE_DXGX},
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A10), .driver_data = CHIP_357_VIRGE_GX2},
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A11), .driver_data = CHIP_359_VIRGE_GX2P},
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A12), .driver_data = CHIP_359_VIRGE_GX2P},
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A13), .driver_data = CHIP_36X_TRIO3D_1X_2X},
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8904), .driver_data = CHIP_365_TRIO3D},
- {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8C01), .driver_data = CHIP_260_VIRGE_MX},
-
- {0, 0, 0, 0, 0, 0, 0}
-};
-
-
-MODULE_DEVICE_TABLE(pci, s3_devices);
-
-static struct pci_driver s3fb_pci_driver = {
- .name = "s3fb",
- .id_table = s3_devices,
- .probe = s3_pci_probe,
- .remove = s3_pci_remove,
- .suspend = s3_pci_suspend,
- .resume = s3_pci_resume,
-};
-
-/* Parse user specified options */
-
-#ifndef MODULE
-static int __init s3fb_setup(char *options)
-{
- char *opt;
-
- if (!options || !*options)
- return 0;
-
- while ((opt = strsep(&options, ",")) != NULL) {
-
- if (!*opt)
- continue;
-#ifdef CONFIG_MTRR
- else if (!strncmp(opt, "mtrr:", 5))
- mtrr = simple_strtoul(opt + 5, NULL, 0);
-#endif
- else if (!strncmp(opt, "fasttext:", 9))
- fasttext = simple_strtoul(opt + 9, NULL, 0);
- else
- mode_option = opt;
- }
-
- return 0;
-}
-#endif
-
-/* Cleanup */
-
-static void __exit s3fb_cleanup(void)
-{
- pr_debug("s3fb: cleaning up\n");
- pci_unregister_driver(&s3fb_pci_driver);
-}
-
-/* Driver Initialisation */
-
-static int __init s3fb_init(void)
-{
-
-#ifndef MODULE
- char *option = NULL;
-
- if (fb_get_options("s3fb", &option))
- return -ENODEV;
- s3fb_setup(option);
-#endif
-
- pr_debug("s3fb: initializing\n");
- return pci_register_driver(&s3fb_pci_driver);
-}
-
-/* ------------------------------------------------------------------------- */
-
-/* Modularization */
-
-module_init(s3fb_init);
-module_exit(s3fb_cleanup);