diff options
Diffstat (limited to 'drivers/video/pm2fb.c')
| -rw-r--r-- | drivers/video/pm2fb.c | 1858 |
1 files changed, 0 insertions, 1858 deletions
diff --git a/drivers/video/pm2fb.c b/drivers/video/pm2fb.c deleted file mode 100644 index 3b85b647bc10..000000000000 --- a/drivers/video/pm2fb.c +++ /dev/null @@ -1,1858 +0,0 @@ -/* - * Permedia2 framebuffer driver. - * - * 2.5/2.6 driver: - * Copyright (c) 2003 Jim Hague (jim.hague@acm.org) - * - * based on 2.4 driver: - * Copyright (c) 1998-2000 Ilario Nardinocchi (nardinoc@CS.UniBO.IT) - * Copyright (c) 1999 Jakub Jelinek (jakub@redhat.com) - * - * and additional input from James Simmon's port of Hannu Mallat's tdfx - * driver. - * - * I have a Creative Graphics Blaster Exxtreme card - pm2fb on x86. I - * have no access to other pm2fb implementations. Sparc (and thus - * hopefully other big-endian) devices now work, thanks to a lot of - * testing work by Ron Murray. I have no access to CVision hardware, - * and therefore for now I am omitting the CVision code. - * - * Multiple boards support has been on the TODO list for ages. - * Don't expect this to change. - * - * 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. - * - * - */ - -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/fb.h> -#include <linux/init.h> -#include <linux/pci.h> -#ifdef CONFIG_MTRR -#include <asm/mtrr.h> -#endif - -#include <video/permedia2.h> -#include <video/cvisionppc.h> - -#if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN) -#error "The endianness of the target host has not been defined." -#endif - -#if !defined(CONFIG_PCI) -#error "Only generic PCI cards supported." -#endif - -#undef PM2FB_MASTER_DEBUG -#ifdef PM2FB_MASTER_DEBUG -#define DPRINTK(a, b...) \ - printk(KERN_DEBUG "pm2fb: %s: " a, __func__ , ## b) -#else -#define DPRINTK(a, b...) -#endif - -#define PM2_PIXMAP_SIZE (1600 * 4) - -/* - * Driver data - */ -static int hwcursor = 1; -static char *mode_option; - -/* - * The XFree GLINT driver will (I think to implement hardware cursor - * support on TVP4010 and similar where there is no RAMDAC - see - * comment in set_video) always request +ve sync regardless of what - * the mode requires. This screws me because I have a Sun - * fixed-frequency monitor which absolutely has to have -ve sync. So - * these flags allow the user to specify that requests for +ve sync - * should be silently turned in -ve sync. - */ -static bool lowhsync; -static bool lowvsync; -static bool noaccel; -/* mtrr option */ -#ifdef CONFIG_MTRR -static bool nomtrr; -#endif - -/* - * The hardware state of the graphics card that isn't part of the - * screeninfo. - */ -struct pm2fb_par -{ - pm2type_t type; /* Board type */ - unsigned char __iomem *v_regs;/* virtual address of p_regs */ - u32 memclock; /* memclock */ - u32 video; /* video flags before blanking */ - u32 mem_config; /* MemConfig reg at probe */ - u32 mem_control; /* MemControl reg at probe */ - u32 boot_address; /* BootAddress reg at probe */ - u32 palette[16]; - int mtrr_handle; -}; - -/* - * Here we define the default structs fb_fix_screeninfo and fb_var_screeninfo - * if we don't use modedb. - */ -static struct fb_fix_screeninfo pm2fb_fix = { - .id = "", - .type = FB_TYPE_PACKED_PIXELS, - .visual = FB_VISUAL_PSEUDOCOLOR, - .xpanstep = 1, - .ypanstep = 1, - .ywrapstep = 0, - .accel = FB_ACCEL_3DLABS_PERMEDIA2, -}; - -/* - * Default video mode. In case the modedb doesn't work. - */ -static struct fb_var_screeninfo pm2fb_var = { - /* "640x480, 8 bpp @ 60 Hz */ - .xres = 640, - .yres = 480, - .xres_virtual = 640, - .yres_virtual = 480, - .bits_per_pixel = 8, - .red = {0, 8, 0}, - .blue = {0, 8, 0}, - .green = {0, 8, 0}, - .activate = FB_ACTIVATE_NOW, - .height = -1, - .width = -1, - .accel_flags = 0, - .pixclock = 39721, - .left_margin = 40, - .right_margin = 24, - .upper_margin = 32, - .lower_margin = 11, - .hsync_len = 96, - .vsync_len = 2, - .vmode = FB_VMODE_NONINTERLACED -}; - -/* - * Utility functions - */ - -static inline u32 pm2_RD(struct pm2fb_par *p, s32 off) -{ - return fb_readl(p->v_regs + off); -} - -static inline void pm2_WR(struct pm2fb_par *p, s32 off, u32 v) -{ - fb_writel(v, p->v_regs + off); -} - -static inline u32 pm2_RDAC_RD(struct pm2fb_par *p, s32 idx) -{ - pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx); - mb(); - return pm2_RD(p, PM2R_RD_INDEXED_DATA); -} - -static inline u32 pm2v_RDAC_RD(struct pm2fb_par *p, s32 idx) -{ - pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff); - mb(); - return pm2_RD(p, PM2VR_RD_INDEXED_DATA); -} - -static inline void pm2_RDAC_WR(struct pm2fb_par *p, s32 idx, u32 v) -{ - pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx); - wmb(); - pm2_WR(p, PM2R_RD_INDEXED_DATA, v); - wmb(); -} - -static inline void pm2v_RDAC_WR(struct pm2fb_par *p, s32 idx, u32 v) -{ - pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff); - wmb(); - pm2_WR(p, PM2VR_RD_INDEXED_DATA, v); - wmb(); -} - -#ifdef CONFIG_FB_PM2_FIFO_DISCONNECT -#define WAIT_FIFO(p, a) -#else -static inline void WAIT_FIFO(struct pm2fb_par *p, u32 a) -{ - while (pm2_RD(p, PM2R_IN_FIFO_SPACE) < a) - cpu_relax(); -} -#endif - -/* - * partial products for the supported horizontal resolutions. - */ -#define PACKPP(p0, p1, p2) (((p2) << 6) | ((p1) << 3) | (p0)) -static const struct { - u16 width; - u16 pp; -} pp_table[] = { - { 32, PACKPP(1, 0, 0) }, { 64, PACKPP(1, 1, 0) }, - { 96, PACKPP(1, 1, 1) }, { 128, PACKPP(2, 1, 1) }, - { 160, PACKPP(2, 2, 1) }, { 192, PACKPP(2, 2, 2) }, - { 224, PACKPP(3, 2, 1) }, { 256, PACKPP(3, 2, 2) }, - { 288, PACKPP(3, 3, 1) }, { 320, PACKPP(3, 3, 2) }, - { 384, PACKPP(3, 3, 3) }, { 416, PACKPP(4, 3, 1) }, - { 448, PACKPP(4, 3, 2) }, { 512, PACKPP(4, 3, 3) }, - { 544, PACKPP(4, 4, 1) }, { 576, PACKPP(4, 4, 2) }, - { 640, PACKPP(4, 4, 3) }, { 768, PACKPP(4, 4, 4) }, - { 800, PACKPP(5, 4, 1) }, { 832, PACKPP(5, 4, 2) }, - { 896, PACKPP(5, 4, 3) }, { 1024, PACKPP(5, 4, 4) }, - { 1056, PACKPP(5, 5, 1) }, { 1088, PACKPP(5, 5, 2) }, - { 1152, PACKPP(5, 5, 3) }, { 1280, PACKPP(5, 5, 4) }, - { 1536, PACKPP(5, 5, 5) }, { 1568, PACKPP(6, 5, 1) }, - { 1600, PACKPP(6, 5, 2) }, { 1664, PACKPP(6, 5, 3) }, - { 1792, PACKPP(6, 5, 4) }, { 2048, PACKPP(6, 5, 5) }, - { 0, 0 } }; - -static u32 partprod(u32 xres) -{ - int i; - - for (i = 0; pp_table[i].width && pp_table[i].width != xres; i++) - ; - if (pp_table[i].width == 0) - DPRINTK("invalid width %u\n", xres); - return pp_table[i].pp; -} - -static u32 to3264(u32 timing, int bpp, int is64) -{ - switch (bpp) { - case 24: - timing *= 3; - case 8: - timing >>= 1; - case 16: - timing >>= 1; - case 32: - break; - } - if (is64) - timing >>= 1; - return timing; -} - -static void pm2_mnp(u32 clk, unsigned char *mm, unsigned char *nn, - unsigned char *pp) -{ - unsigned char m; - unsigned char n; - unsigned char p; - u32 f; - s32 curr; - s32 delta = 100000; - - *mm = *nn = *pp = 0; - for (n = 2; n < 15; n++) { - for (m = 2; m; m++) { - f = PM2_REFERENCE_CLOCK * m / n; - if (f >= 150000 && f <= 300000) { - for (p = 0; p < 5; p++, f >>= 1) { - curr = (clk > f) ? clk - f : f - clk; - if (curr < delta) { - delta = curr; - *mm = m; - *nn = n; - *pp = p; - } - } - } - } - } -} - -static void pm2v_mnp(u32 clk, unsigned char *mm, unsigned char *nn, - unsigned char *pp) -{ - unsigned char m; - unsigned char n; - unsigned char p; - u32 f; - s32 delta = 1000; - - *mm = *nn = *pp = 0; - for (m = 1; m < 128; m++) { - for (n = 2 * m + 1; n; n++) { - for (p = 0; p < 2; p++) { - f = (PM2_REFERENCE_CLOCK >> (p + 1)) * n / m; - if (clk > f - delta && clk < f + delta) { - delta = (clk > f) ? clk - f : f - clk; - *mm = m; - *nn = n; - *pp = p; - } - } - } - } -} - -static void clear_palette(struct pm2fb_par *p) -{ - int i = 256; - - WAIT_FIFO(p, 1); - pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, 0); - wmb(); - while (i--) { - WAIT_FIFO(p, 3); - pm2_WR(p, PM2R_RD_PALETTE_DATA, 0); - pm2_WR(p, PM2R_RD_PALETTE_DATA, 0); - pm2_WR(p, PM2R_RD_PALETTE_DATA, 0); - } -} - -static void reset_card(struct pm2fb_par *p) -{ - if (p->type == PM2_TYPE_PERMEDIA2V) - pm2_WR(p, PM2VR_RD_INDEX_HIGH, 0); - pm2_WR(p, PM2R_RESET_STATUS, 0); - mb(); - while (pm2_RD(p, PM2R_RESET_STATUS) & PM2F_BEING_RESET) - cpu_relax(); - mb(); -#ifdef CONFIG_FB_PM2_FIFO_DISCONNECT - DPRINTK("FIFO disconnect enabled\n"); - pm2_WR(p, PM2R_FIFO_DISCON, 1); - mb(); -#endif - - /* Restore stashed memory config information from probe */ - WAIT_FIFO(p, 3); - pm2_WR(p, PM2R_MEM_CONTROL, p->mem_control); - pm2_WR(p, PM2R_BOOT_ADDRESS, p->boot_address); - wmb(); - pm2_WR(p, PM2R_MEM_CONFIG, p->mem_config); -} - -static void reset_config(struct pm2fb_par *p) -{ - WAIT_FIFO(p, 53); - pm2_WR(p, PM2R_CHIP_CONFIG, pm2_RD(p, PM2R_CHIP_CONFIG) & - ~(PM2F_VGA_ENABLE | PM2F_VGA_FIXED)); - pm2_WR(p, PM2R_BYPASS_WRITE_MASK, ~(0L)); - pm2_WR(p, PM2R_FRAMEBUFFER_WRITE_MASK, ~(0L)); - pm2_WR(p, PM2R_FIFO_CONTROL, 0); - pm2_WR(p, PM2R_APERTURE_ONE, 0); - pm2_WR(p, PM2R_APERTURE_TWO, 0); - pm2_WR(p, PM2R_RASTERIZER_MODE, 0); - pm2_WR(p, PM2R_DELTA_MODE, PM2F_DELTA_ORDER_RGB); - pm2_WR(p, PM2R_LB_READ_FORMAT, 0); - pm2_WR(p, PM2R_LB_WRITE_FORMAT, 0); - pm2_WR(p, PM2R_LB_READ_MODE, 0); - pm2_WR(p, PM2R_LB_SOURCE_OFFSET, 0); - pm2_WR(p, PM2R_FB_SOURCE_OFFSET, 0); - pm2_WR(p, PM2R_FB_PIXEL_OFFSET, 0); - pm2_WR(p, PM2R_FB_WINDOW_BASE, 0); - pm2_WR(p, PM2R_LB_WINDOW_BASE, 0); - pm2_WR(p, PM2R_FB_SOFT_WRITE_MASK, ~(0L)); - pm2_WR(p, PM2R_FB_HARD_WRITE_MASK, ~(0L)); - pm2_WR(p, PM2R_FB_READ_PIXEL, 0); - pm2_WR(p, PM2R_DITHER_MODE, 0); - pm2_WR(p, PM2R_AREA_STIPPLE_MODE, 0); - pm2_WR(p, PM2R_DEPTH_MODE, 0); - pm2_WR(p, PM2R_STENCIL_MODE, 0); - pm2_WR(p, PM2R_TEXTURE_ADDRESS_MODE, 0); - pm2_WR(p, PM2R_TEXTURE_READ_MODE, 0); - pm2_WR(p, PM2R_TEXEL_LUT_MODE, 0); - pm2_WR(p, PM2R_YUV_MODE, 0); - pm2_WR(p, PM2R_COLOR_DDA_MODE, 0); - pm2_WR(p, PM2R_TEXTURE_COLOR_MODE, 0); - pm2_WR(p, PM2R_FOG_MODE, 0); - pm2_WR(p, PM2R_ALPHA_BLEND_MODE, 0); - pm2_WR(p, PM2R_LOGICAL_OP_MODE, 0); - pm2_WR(p, PM2R_STATISTICS_MODE, 0); - pm2_WR(p, PM2R_SCISSOR_MODE, 0); - pm2_WR(p, PM2R_FILTER_MODE, PM2F_SYNCHRONIZATION); - pm2_WR(p, PM2R_RD_PIXEL_MASK, 0xff); - switch (p->type) { - case PM2_TYPE_PERMEDIA2: - pm2_RDAC_WR(p, PM2I_RD_MODE_CONTROL, 0); /* no overlay */ - pm2_RDAC_WR(p, PM2I_RD_CURSOR_CONTROL, 0); - pm2_RDAC_WR(p, PM2I_RD_MISC_CONTROL, PM2F_RD_PALETTE_WIDTH_8); - pm2_RDAC_WR(p, PM2I_RD_COLOR_KEY_CONTROL, 0); - pm2_RDAC_WR(p, PM2I_RD_OVERLAY_KEY, 0); - pm2_RDAC_WR(p, PM2I_RD_RED_KEY, 0); - pm2_RDAC_WR(p, PM2I_RD_GREEN_KEY, 0); - pm2_RDAC_WR(p, PM2I_RD_BLUE_KEY, 0); - break; - case PM2_TYPE_PERMEDIA2V: - pm2v_RDAC_WR(p, PM2VI_RD_MISC_CONTROL, 1); /* 8bit */ - break; - } -} - -static void set_aperture(struct pm2fb_par *p, u32 depth) -{ - /* - * The hardware is little-endian. When used in big-endian - * hosts, the on-chip aperture settings are used where - * possible to translate from host to card byte order. - */ - WAIT_FIFO(p, 2); -#ifdef __LITTLE_ENDIAN - pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_STANDARD); -#else - switch (depth) { - case 24: /* RGB->BGR */ - /* - * We can't use the aperture to translate host to - * card byte order here, so we switch to BGR mode - * in pm2fb_set_par(). - */ - case 8: /* B->B */ - pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_STANDARD); - break; - case 16: /* HL->LH */ - pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_HALFWORDSWAP); - break; - case 32: /* RGBA->ABGR */ - pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_BYTESWAP); - break; - } -#endif - - /* We don't use aperture two, so this may be superflous */ - pm2_WR(p, PM2R_APERTURE_TWO, PM2F_APERTURE_STANDARD); -} - -static void set_color(struct pm2fb_par *p, unsigned char regno, - unsigned char r, unsigned char g, unsigned char b) -{ - WAIT_FIFO(p, 4); - pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, regno); - wmb(); - pm2_WR(p, PM2R_RD_PALETTE_DATA, r); - wmb(); - pm2_WR(p, PM2R_RD_PALETTE_DATA, g); - wmb(); - pm2_WR(p, PM2R_RD_PALETTE_DATA, b); -} - -static void set_memclock(struct pm2fb_par *par, u32 clk) -{ - int i; - unsigned char m, n, p; - - switch (par->type) { - case PM2_TYPE_PERMEDIA2V: - pm2v_mnp(clk/2, &m, &n, &p); - WAIT_FIFO(par, 12); - pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_MCLK_CONTROL >> 8); - pm2v_RDAC_WR(par, PM2VI_RD_MCLK_CONTROL, 0); - pm2v_RDAC_WR(par, PM2VI_RD_MCLK_PRESCALE, m); - pm2v_RDAC_WR(par, PM2VI_RD_MCLK_FEEDBACK, n); - pm2v_RDAC_WR(par, PM2VI_RD_MCLK_POSTSCALE, p); - pm2v_RDAC_WR(par, PM2VI_RD_MCLK_CONTROL, 1); - rmb(); - for (i = 256; i; i--) - if (pm2v_RDAC_RD(par, PM2VI_RD_MCLK_CONTROL) & 2) - break; - pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0); - break; - case PM2_TYPE_PERMEDIA2: - pm2_mnp(clk, &m, &n, &p); - WAIT_FIFO(par, 10); - pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 6); - pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_1, m); - pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_2, n); - pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 8|p); - pm2_RDAC_RD(par, PM2I_RD_MEMORY_CLOCK_STATUS); - rmb(); - for (i = 256; i; i--) - if (pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED) - break; - break; - } -} - -static void set_pixclock(struct pm2fb_par *par, u32 clk) -{ - int i; - unsigned char m, n, p; - - switch (par->type) { - case PM2_TYPE_PERMEDIA2: - pm2_mnp(clk, &m, &n, &p); - WAIT_FIFO(par, 10); - pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A3, 0); - pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A1, m); - pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A2, n); - pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A3, 8|p); - pm2_RDAC_RD(par, PM2I_RD_PIXEL_CLOCK_STATUS); - rmb(); - for (i = 256; i; i--) - if (pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED) - break; - break; - case PM2_TYPE_PERMEDIA2V: - pm2v_mnp(clk/2, &m, &n, &p); - WAIT_FIFO(par, 8); - pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_CLK0_PRESCALE >> 8); - pm2v_RDAC_WR(par, PM2VI_RD_CLK0_PRESCALE, m); - pm2v_RDAC_WR(par, PM2VI_RD_CLK0_FEEDBACK, n); - pm2v_RDAC_WR(par, PM2VI_RD_CLK0_POSTSCALE, p); - pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0); - break; - } -} - -static void set_video(struct pm2fb_par *p, u32 video) -{ - u32 tmp; - u32 vsync = video; - - DPRINTK("video = 0x%x\n", video); - - /* - * The hardware cursor needs +vsync to recognise vert retrace. - * We may not be using the hardware cursor, but the X Glint - * driver may well. So always set +hsync/+vsync and then set - * the RAMDAC to invert the sync if necessary. - */ - vsync &= ~(PM2F_HSYNC_MASK | PM2F_VSYNC_MASK); - vsync |= PM2F_HSYNC_ACT_HIGH | PM2F_VSYNC_ACT_HIGH; - - WAIT_FIFO(p, 3); - pm2_WR(p, PM2R_VIDEO_CONTROL, vsync); - - switch (p->type) { - case PM2_TYPE_PERMEDIA2: - tmp = PM2F_RD_PALETTE_WIDTH_8; - if ((video & PM2F_HSYNC_MASK) == PM2F_HSYNC_ACT_LOW) - tmp |= 4; /* invert hsync */ - if ((video & PM2F_VSYNC_MASK) == PM2F_VSYNC_ACT_LOW) - tmp |= 8; /* invert vsync */ - pm2_RDAC_WR(p, PM2I_RD_MISC_CONTROL, tmp); - break; - case PM2_TYPE_PERMEDIA2V: - tmp = 0; - if ((video & PM2F_HSYNC_MASK) == PM2F_HSYNC_ACT_LOW) - tmp |= 1; /* invert hsync */ - if ((video & PM2F_VSYNC_MASK) == PM2F_VSYNC_ACT_LOW) - tmp |= 4; /* invert vsync */ - pm2v_RDAC_WR(p, PM2VI_RD_SYNC_CONTROL, tmp); - break; - } -} - -/* - * pm2fb_check_var - Optional function. Validates a var passed in. - * @var: frame buffer variable screen structure - * @info: frame buffer structure that represents a single frame buffer - * - * Checks to see if the hardware supports the state requested by - * var passed in. - * - * Returns negative errno on error, or zero on success. - */ -static int pm2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) -{ - u32 lpitch; - - if (var->bits_per_pixel != 8 && var->bits_per_pixel != 16 && - var->bits_per_pixel != 24 && var->bits_per_pixel != 32) { - DPRINTK("depth not supported: %u\n", var->bits_per_pixel); - return -EINVAL; - } - - if (var->xres != var->xres_virtual) { - DPRINTK("virtual x resolution != " - "physical x resolution not supported\n"); - return -EINVAL; - } - - if (var->yres > var->yres_virtual) { - DPRINTK("virtual y resolution < " - "physical y resolution not possible\n"); - return -EINVAL; - } - - /* permedia cannot blit over 2048 */ - if (var->yres_virtual > 2047) { - var->yres_virtual = 2047; - } - - if (var->xoffset) { - DPRINTK("xoffset not supported\n"); - return -EINVAL; - } - - if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) { - DPRINTK("interlace not supported\n"); - return -EINVAL; - } - - var->xres = (var->xres + 15) & ~15; /* could sometimes be 8 */ - lpitch = var->xres * ((var->bits_per_pixel + 7) >> 3); - - if (var->xres < 320 || var->xres > 1600) { - DPRINTK("width not supported: %u\n", var->xres); - return -EINVAL; - } - - if (var->yres < 200 || var->yres > 1200) { - DPRINTK("height not supported: %u\n", var->yres); - return -EINVAL; - } - - if (lpitch * var->yres_virtual > info->fix.smem_len) { - DPRINTK("no memory for screen (%ux%ux%u)\n", - var->xres, var->yres_virtual, var->bits_per_pixel); - return -EINVAL; - } - - if (PICOS2KHZ(var->pixclock) > PM2_MAX_PIXCLOCK) { - DPRINTK("pixclock too high (%ldKHz)\n", - PICOS2KHZ(var->pixclock)); - return -EINVAL; - } - - var->transp.offset = 0; - var->transp.length = 0; - switch (var->bits_per_pixel) { - case 8: - var->red.length = 8; - var->green.length = 8; - var->blue.length = 8; - break; - case 16: - var->red.offset = 11; - var->red.length = 5; - var->green.offset = 5; - var->green.length = 6; - var->blue.offset = 0; - var->blue.length = 5; - break; - case 32: - var->transp.offset = 24; - var->transp.length = 8; - var->red.offset = 16; - var->green.offset = 8; - var->blue.offset = 0; - var->red.length = 8; - var->green.length = 8; - var->blue.length = 8; - break; - case 24: -#ifdef __BIG_ENDIAN - var->red.offset = 0; - var->blue.offset = 16; -#else - var->red.offset = 16; - var->blue.offset = 0; -#endif - var->green.offset = 8; - var->red.length = 8; - var->green.length = 8; - var->blue.length = 8; - break; - } - var->height = -1; - var->width = -1; - - var->accel_flags = 0; /* Can't mmap if this is on */ - - DPRINTK("Checking graphics mode at %dx%d depth %d\n", - var->xres, var->yres, var->bits_per_pixel); - return 0; -} - -/** - * pm2fb_set_par - Alters the hardware state. - * @info: frame buffer structure that represents a single frame buffer - * - * Using the fb_var_screeninfo in fb_info we set the resolution of the - * this particular framebuffer. - */ -static int pm2fb_set_par(struct fb_info *info) -{ - struct pm2fb_par *par = info->par; - u32 pixclock; - u32 width = (info->var.xres_virtual + 7) & ~7; - u32 height = info->var.yres_virtual; - u32 depth = (info->var.bits_per_pixel + 7) & ~7; - u32 hsstart, hsend, hbend, htotal; - u32 vsstart, vsend, vbend, vtotal; - u32 stride; - u32 base; - u32 video = 0; - u32 clrmode = PM2F_RD_COLOR_MODE_RGB | PM2F_RD_GUI_ACTIVE; - u32 txtmap = 0; - u32 pixsize = 0; - u32 clrformat = 0; - u32 misc = 1; /* 8-bit DAC */ - u32 xres = (info->var.xres + 31) & ~31; - int data64; - - reset_card(par); - reset_config(par); - clear_palette(par); - if (par->memclock) - set_memclock(par, par->memclock); - - depth = (depth > 32) ? 32 : depth; - data64 = depth > 8 || par->type == PM2_TYPE_PERMEDIA2V; - - pixclock = PICOS2KHZ(info->var.pixclock); - if (pixclock > PM2_MAX_PIXCLOCK) { - DPRINTK("pixclock too high (%uKHz)\n", pixclock); - return -EINVAL; - } - - hsstart = to3264(info->var.right_margin, depth, data64); - hsend = hsstart + to3264(info->var.hsync_len, depth, data64); - hbend = hsend + to3264(info->var.left_margin, depth, data64); - htotal = to3264(xres, depth, data64) + hbend - 1; - vsstart = (info->var.lower_margin) - ? info->var.lower_margin - 1 - : 0; /* FIXME! */ - vsend = info->var.lower_margin + info->var.vsync_len - 1; - vbend = info->var.lower_margin + info->var.vsync_len + - info->var.upper_margin; - vtotal = info->var.yres + vbend - 1; - stride = to3264(width, depth, 1); - base = to3264(info->var.yoffset * xres + info->var.xoffset, depth, 1); - if (data64) - video |= PM2F_DATA_64_ENABLE; - - if (info->var.sync & FB_SYNC_HOR_HIGH_ACT) { - if (lowhsync) { - DPRINTK("ignoring +hsync, using -hsync.\n"); - video |= PM2F_HSYNC_ACT_LOW; - } else - video |= PM2F_HSYNC_ACT_HIGH; - } else - video |= PM2F_HSYNC_ACT_LOW; - - if (info->var.sync & FB_SYNC_VERT_HIGH_ACT) { - if (lowvsync) { - DPRINTK("ignoring +vsync, using -vsync.\n"); - video |= PM2F_VSYNC_ACT_LOW; - } else - video |= PM2F_VSYNC_ACT_HIGH; - } else - video |= PM2F_VSYNC_ACT_LOW; - - if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) { - DPRINTK("interlaced not supported\n"); - return -EINVAL; - } - if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) - video |= PM2F_LINE_DOUBLE; - if ((info->var.activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) - video |= PM2F_VIDEO_ENABLE; - par->video = video; - - info->fix.visual = - (depth == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; - info->fix.line_length = info->var.xres * depth / 8; - info->cmap.len = 256; - - /* - * Settings calculated. Now write them out. - */ - if (par->type == PM2_TYPE_PERMEDIA2V) { - WAIT_FIFO(par, 1); - pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0); - } - - set_aperture(par, depth); - - mb(); - WAIT_FIFO(par, 19); - switch (depth) { - case 8: - pm2_WR(par, PM2R_FB_READ_PIXEL, 0); - clrformat = 0x2e; - break; - case 16: - pm2_WR(par, PM2R_FB_READ_PIXEL, 1); - clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGB565; - txtmap = PM2F_TEXTEL_SIZE_16; - pixsize = 1; - clrformat = 0x70; - misc |= 8; - break; - case 32: - pm2_WR(par, PM2R_FB_READ_PIXEL, 2); - clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGBA8888; - txtmap = PM2F_TEXTEL_SIZE_32; - pixsize = 2; - clrformat = 0x20; - misc |= 8; - break; - case 24: - pm2_WR(par, PM2R_FB_READ_PIXEL, 4); - clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGB888; - txtmap = PM2F_TEXTEL_SIZE_24; - pixsize = 4; - clrformat = 0x20; - misc |= 8; - break; - } - pm2_WR(par, PM2R_FB_WRITE_MODE, PM2F_FB_WRITE_ENABLE); - pm2_WR(par, PM2R_FB_READ_MODE, partprod(xres)); - pm2_WR(par, PM2R_LB_READ_MODE, partprod(xres)); - pm2_WR(par, PM2R_TEXTURE_MAP_FORMAT, txtmap | partprod(xres)); - pm2_WR(par, PM2R_H_TOTAL, htotal); - pm2_WR(par, PM2R_HS_START, hsstart); - pm2_WR(par, PM2R_HS_END, hsend); - pm2_WR(par, PM2R_HG_END, hbend); - pm2_WR(par, PM2R_HB_END, hbend); - pm2_WR(par, PM2R_V_TOTAL, vtotal); - pm2_WR(par, PM2R_VS_START, vsstart); - pm2_WR(par, PM2R_VS_END, vsend); - pm2_WR(par, PM2R_VB_END, vbend); - pm2_WR(par, PM2R_SCREEN_STRIDE, stride); - wmb(); - pm2_WR(par, PM2R_WINDOW_ORIGIN, 0); - pm2_WR(par, PM2R_SCREEN_SIZE, (height << 16) | width); - pm2_WR(par, PM2R_SCISSOR_MODE, PM2F_SCREEN_SCISSOR_ENABLE); - wmb(); - pm2_WR(par, PM2R_SCREEN_BASE, base); - wmb(); - set_video(par, video); - WAIT_FIFO(par, 10); - switch (par->type) { - case PM2_TYPE_PERMEDIA2: - pm2_RDAC_WR(par, PM2I_RD_COLOR_MODE, clrmode); - pm2_RDAC_WR(par, PM2I_RD_COLOR_KEY_CONTROL, - (depth == 8) ? 0 : PM2F_COLOR_KEY_TEST_OFF); - break; - case PM2_TYPE_PERMEDIA2V: - pm2v_RDAC_WR(par, PM2VI_RD_DAC_CONTROL, 0); - pm2v_RDAC_WR(par, PM2VI_RD_PIXEL_SIZE, pixsize); - pm2v_RDAC_WR(par, PM2VI_RD_COLOR_FORMAT, clrformat); - pm2v_RDAC_WR(par, PM2VI_RD_MISC_CONTROL, misc); - pm2v_RDAC_WR(par, PM2VI_RD_OVERLAY_KEY, 0); - break; - } - set_pixclock(par, pixclock); - DPRINTK("Setting graphics mode at %dx%d depth %d\n", - info->var.xres, info->var.yres, info->var.bits_per_pixel); - return 0; -} - -/** - * pm2fb_setcolreg - Sets a color register. - * @regno: boolean, 0 copy local, 1 get_user() function - * @red: frame buffer colormap structure - * @green: The green value which can be up to 16 bits wide - * @blue: The blue value which can be up to 16 bits wide. - * @transp: If supported the alpha value which can be up to 16 bits wide. - * @info: frame buffer info structure - * - * Set a single color register. The values supplied have a 16 bit - * magnitude which needs to be scaled in this function for the hardware. - * Pretty much a direct lift from tdfxfb.c. - * - * Returns negative errno on error, or zero on success. - */ -static int pm2fb_setcolreg(unsigned regno, unsigned red, unsigned green, - unsigned blue, unsigned transp, - struct fb_info *info) -{ - struct pm2fb_par *par = info->par; - - if (regno >= info->cmap.len) /* no. of hw registers */ - return -EINVAL; - /* - * Program hardware... do anything you want with transp - */ - - /* grayscale works only partially under directcolor */ - /* grayscale = 0.30*R + 0.59*G + 0.11*B */ - if (info->var.grayscale) - red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8; - - /* Directcolor: - * var->{color}.offset contains start of bitfield - * var->{color}.length contains length of bitfield - * {hardwarespecific} contains width of DAC - * cmap[X] is programmed to - * (X << red.offset) | (X << green.offset) | (X << blue.offset) - * RAMDAC[X] is programmed to (red, green, blue) - * - * Pseudocolor: - * uses offset = 0 && length = DAC register width. - * var->{color}.offset is 0 - * var->{color}.length contains width of DAC - * cmap is not used - * DAC[X] is programmed to (red, green, blue) - * Truecolor: - * does not use RAMDAC (usually has 3 of them). - * var->{color}.offset contains start of bitfield - * var->{color}.length contains length of bitfield - * cmap is programmed to - * (red << red.offset) | (green << green.offset) | - * (blue << blue.offset) | (transp << transp.offset) - * RAMDAC does not exist - */ -#define CNVT_TOHW(val, width) ((((val) << (width)) + 0x7FFF -(val)) >> 16) - switch (info->fix.visual) { - case FB_VISUAL_TRUECOLOR: - case FB_VISUAL_PSEUDOCOLOR: - red = CNVT_TOHW(red, info->var.red.length); - green = CNVT_TOHW(green, info->var.green.length); - blue = CNVT_TOHW(blue, info->var.blue.length); - transp = CNVT_TOHW(transp, info->var.transp.length); - break; - case FB_VISUAL_DIRECTCOLOR: - /* example here assumes 8 bit DAC. Might be different - * for your hardware */ - red = CNVT_TOHW(red, 8); - green = CNVT_TOHW(green, 8); - blue = CNVT_TOHW(blue, 8); - /* hey, there is bug in transp handling... */ - transp = CNVT_TOHW(transp, 8); - break; - } -#undef CNVT_TOHW - /* Truecolor has hardware independent palette */ - if (info->fix.visual == FB_VISUAL_TRUECOLOR) { - u32 v; - - if (regno >= 16) - return -EINVAL; - - v = (red << info->var.red.offset) | - (green << info->var.green.offset) | - (blue << info->var.blue.offset) | - (transp << info->var.transp.offset); - - switch (info->var.bits_per_pixel) { - case 8: - break; - case 16: - case 24: - case 32: - par->palette[regno] = v; - break; - } - return 0; - } else if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) - set_color(par, regno, red, green, blue); - - return 0; -} - -/** - * pm2fb_pan_display - Pans the display. - * @var: frame buffer variable screen structure - * @info: frame buffer structure that represents a single frame buffer - * - * Pan (or wrap, depending on the `vmode' field) the display using the - * `xoffset' and `yoffset' fields of the `var' structure. - * If the values don't fit, return -EINVAL. - * - * Returns negative errno on error, or zero on success. - * - */ -static int pm2fb_pan_display(struct fb_var_screeninfo *var, - struct fb_info *info) -{ - struct pm2fb_par *p = info->par; - u32 base; - u32 depth = (info->var.bits_per_pixel + 7) & ~7; - u32 xres = (info->var.xres + 31) & ~31; - - depth = (depth > 32) ? 32 : depth; - base = to3264(var->yoffset * xres + var->xoffset, depth, 1); - WAIT_FIFO(p, 1); - pm2_WR(p, PM2R_SCREEN_BASE, base); - return 0; -} - -/** - * pm2fb_blank - Blanks the display. - * @blank_mode: the blank mode we want. - * @info: frame buffer structure that represents a single frame buffer - * - * Blank the screen if blank_mode != 0, else unblank. Return 0 if - * blanking succeeded, != 0 if un-/blanking failed due to e.g. a - * video mode which doesn't support it. Implements VESA suspend - * and powerdown modes on hardware that supports disabling hsync/vsync: - * blank_mode == 2: suspend vsync - * blank_mode == 3: suspend hsync - * blank_mode == 4: powerdown - * - * Returns negative errno on error, or zero on success. - * - */ -static int pm2fb_blank(int blank_mode, struct fb_info *info) -{ - struct pm2fb_par *par = info->par; - u32 video = par->video; - - DPRINTK("blank_mode %d\n", blank_mode); - - switch (blank_mode) { - case FB_BLANK_UNBLANK: - /* Screen: On */ - video |= PM2F_VIDEO_ENABLE; - break; - case FB_BLANK_NORMAL: - /* Screen: Off */ - video &= ~PM2F_VIDEO_ENABLE; - break; - case FB_BLANK_VSYNC_SUSPEND: - /* VSync: Off */ - video &= ~(PM2F_VSYNC_MASK | PM2F_BLANK_LOW); - break; - case FB_BLANK_HSYNC_SUSPEND: - /* HSync: Off */ - video &= ~(PM2F_HSYNC_MASK | PM2F_BLANK_LOW); - break; - case FB_BLANK_POWERDOWN: - /* HSync: Off, VSync: Off */ - video &= ~(PM2F_VSYNC_MASK | PM2F_HSYNC_MASK | PM2F_BLANK_LOW); - break; - } - set_video(par, video); - return 0; -} - -static int pm2fb_sync(struct fb_info *info) -{ - struct pm2fb_par *par = info->par; - - WAIT_FIFO(par, 1); - pm2_WR(par, PM2R_SYNC, 0); - mb(); - do { - while (pm2_RD(par, PM2R_OUT_FIFO_WORDS) == 0) - cpu_relax(); - } while (pm2_RD(par, PM2R_OUT_FIFO) != PM2TAG(PM2R_SYNC)); - - return 0; -} - -static void pm2fb_fillrect(struct fb_info *info, - const struct fb_fillrect *region) -{ - struct pm2fb_par *par = info->par; - struct fb_fillrect modded; - int vxres, vyres; - u32 color = (info->fix.visual == FB_VISUAL_TRUECOLOR) ? - ((u32 *)info->pseudo_palette)[region->color] : region->color; - - if (info->state != FBINFO_STATE_RUNNING) - return; - if ((info->flags & FBINFO_HWACCEL_DISABLED) || - region->rop != ROP_COPY ) { - cfb_fillrect(info, region); - return; - } - - vxres = info->var.xres_virtual; - vyres = info->var.yres_virtual; - - memcpy(&modded, region, sizeof(struct fb_fillrect)); - - if (!modded.width || !modded.height || - modded.dx >= vxres || modded.dy >= vyres) - return; - - if (modded.dx + modded.width > vxres) - modded.width = vxres - modded.dx; - if (modded.dy + modded.height > vyres) - modded.height = vyres - modded.dy; - - if (info->var.bits_per_pixel == 8) - color |= color << 8; - if (info->var.bits_per_pixel <= 16) - color |= color << 16; - - WAIT_FIFO(par, 3); - pm2_WR(par, PM2R_CONFIG, PM2F_CONFIG_FB_WRITE_ENABLE); - pm2_WR(par, PM2R_RECTANGLE_ORIGIN, (modded.dy << 16) | modded.dx); - pm2_WR(par, PM2R_RECTANGLE_SIZE, (modded.height << 16) | modded.width); - if (info->var.bits_per_pixel != 24) { - WAIT_FIFO(par, 2); - pm2_WR(par, PM2R_FB_BLOCK_COLOR, color); - wmb(); - pm2_WR(par, PM2R_RENDER, - PM2F_RENDER_RECTANGLE | PM2F_RENDER_FASTFILL); - } else { - WAIT_FIFO(par, 4); - pm2_WR(par, PM2R_COLOR_DDA_MODE, 1); - pm2_WR(par, PM2R_CONSTANT_COLOR, color); - wmb(); - pm2_WR(par, PM2R_RENDER, - PM2F_RENDER_RECTANGLE | - PM2F_INCREASE_X | PM2F_INCREASE_Y ); - pm2_WR(par, PM2R_COLOR_DDA_MODE, 0); - } -} - -static void pm2fb_copyarea(struct fb_info *info, - const struct fb_copyarea *area) -{ - struct pm2fb_par *par = info->par; - struct fb_copyarea modded; - u32 vxres, vyres; - - if (info->state != FBINFO_STATE_RUNNING) - return; - if (info->flags & FBINFO_HWACCEL_DISABLED) { - cfb_copyarea(info, area); - return; - } - - memcpy(&modded, area, sizeof(struct fb_copyarea)); - - vxres = info->var.xres_virtual; - vyres = info->var.yres_virtual; - - if (!modded.width || !modded.height || - modded.sx >= vxres || modded.sy >= vyres || - modded.dx >= vxres || modded.dy >= vyres) - return; - - if (modded.sx + modded.width > vxres) - modded.width = vxres - modded.sx; - if (modded.dx + modded.width > vxres) - modded.width = vxres - modded.dx; - if (modded.sy + modded.height > vyres) - modded.height = vyres - modded.sy; - if (modded.dy + modded.height > vyres) - modded.height = vyres - modded.dy; - - WAIT_FIFO(par, 5); - pm2_WR(par, PM2R_CONFIG, PM2F_CONFIG_FB_WRITE_ENABLE | - PM2F_CONFIG_FB_READ_SOURCE_ENABLE); - pm2_WR(par, PM2R_FB_SOURCE_DELTA, - ((modded.sy - modded.dy) & 0xfff) << 16 | - ((modded.sx - modded.dx) & 0xfff)); - pm2_WR(par, PM2R_RECTANGLE_ORIGIN, (modded.dy << 16) | modded.dx); - pm2_WR(par, PM2R_RECTANGLE_SIZE, (modded.height << 16) | modded.width); - wmb(); - pm2_WR(par, PM2R_RENDER, PM2F_RENDER_RECTANGLE | - (modded.dx < modded.sx ? PM2F_INCREASE_X : 0) | - (modded.dy < modded.sy ? PM2F_INCREASE_Y : 0)); -} - -static void pm2fb_imageblit(struct fb_info *info, const struct fb_image *image) -{ - struct pm2fb_par *par = info->par; - u32 height = image->height; - u32 fgx, bgx; - const u32 *src = (const u32 *)image->data; - u32 xres = (info->var.xres + 31) & ~31; - int raster_mode = 1; /* invert bits */ - -#ifdef __LITTLE_ENDIAN - raster_mode |= 3 << 7; /* reverse byte order */ -#endif - - if (info->state != FBINFO_STATE_RUNNING) - return; - if (info->flags & FBINFO_HWACCEL_DISABLED || image->depth != 1) { - cfb_imageblit(info, image); - return; - } - switch (info->fix.visual) { - case FB_VISUAL_PSEUDOCOLOR: - fgx = image->fg_color; - bgx = image->bg_color; - break; - case FB_VISUAL_TRUECOLOR: - default: - fgx = par->palette[image->fg_color]; - bgx = par->palette[image->bg_color]; - break; - } - if (info->var.bits_per_pixel == 8) { - fgx |= fgx << 8; - bgx |= bgx << 8; - } - if (info->var.bits_per_pixel <= 16) { - fgx |= fgx << 16; - bgx |= bgx << 16; - } - - WAIT_FIFO(par, 13); - pm2_WR(par, PM2R_FB_READ_MODE, partprod(xres)); - pm2_WR(par, PM2R_SCISSOR_MIN_XY, - ((image->dy & 0xfff) << 16) | (image->dx & 0x0fff)); - pm2_WR(par, PM2R_SCISSOR_MAX_XY, - (((image->dy + image->height) & 0x0fff) << 16) | - ((image->dx + image->width) & 0x0fff)); - pm2_WR(par, PM2R_SCISSOR_MODE, 1); - /* GXcopy & UNIT_ENABLE */ - pm2_WR(par, PM2R_LOGICAL_OP_MODE, (0x3 << 1) | 1); - pm2_WR(par, PM2R_RECTANGLE_ORIGIN, - ((image->dy & 0xfff) << 16) | (image->dx & 0x0fff)); - pm2_WR(par, PM2R_RECTANGLE_SIZE, - ((image->height & 0x0fff) << 16) | - ((image->width) & 0x0fff)); - if (info->var.bits_per_pixel == 24) { - pm2_WR(par, PM2R_COLOR_DDA_MODE, 1); - /* clear area */ - pm2_WR(par, PM2R_CONSTANT_COLOR, bgx); - pm2_WR(par, PM2R_RENDER, - PM2F_RENDER_RECTANGLE | - PM2F_INCREASE_X | PM2F_INCREASE_Y); - /* BitMapPackEachScanline */ - pm2_WR(par, PM2R_RASTERIZER_MODE, raster_mode | (1 << 9)); - pm2_WR(par, PM2R_CONSTANT_COLOR, fgx); - pm2_WR(par, PM2R_RENDER, - PM2F_RENDER_RECTANGLE | - PM2F_INCREASE_X | PM2F_INCREASE_Y | - PM2F_RENDER_SYNC_ON_BIT_MASK); - } else { - pm2_WR(par, PM2R_COLOR_DDA_MODE, 0); - /* clear area */ - pm2_WR(par, PM2R_FB_BLOCK_COLOR, bgx); - pm2_WR(par, PM2R_RENDER, - PM2F_RENDER_RECTANGLE | - PM2F_RENDER_FASTFILL | - PM2F_INCREASE_X | PM2F_INCREASE_Y); - pm2_WR(par, PM2R_RASTERIZER_MODE, raster_mode); - pm2_WR(par, PM2R_FB_BLOCK_COLOR, fgx); - pm2_WR(par, PM2R_RENDER, - PM2F_RENDER_RECTANGLE | - PM2F_INCREASE_X | PM2F_INCREASE_Y | - PM2F_RENDER_FASTFILL | - PM2F_RENDER_SYNC_ON_BIT_MASK); - } - - while (height--) { - int width = ((image->width + 7) >> 3) - + info->pixmap.scan_align - 1; - width >>= 2; - WAIT_FIFO(par, width); - while (width--) { - pm2_WR(par, PM2R_BIT_MASK_PATTERN, *src); - src++; - } - } - WAIT_FIFO(par, 3); - pm2_WR(par, PM2R_RASTERIZER_MODE, 0); - pm2_WR(par, PM2R_COLOR_DDA_MODE, 0); - pm2_WR(par, PM2R_SCISSOR_MODE, 0); -} - -/* - * Hardware cursor support. - */ -static const u8 cursor_bits_lookup[16] = { - 0x00, 0x40, 0x10, 0x50, 0x04, 0x44, 0x14, 0x54, - 0x01, 0x41, 0x11, 0x51, 0x05, 0x45, 0x15, 0x55 -}; - -static int pm2vfb_cursor(struct fb_info *info, struct fb_cursor *cursor) -{ - struct pm2fb_par *par = info->par; - u8 mode = PM2F_CURSORMODE_TYPE_X; - int x = cursor->image.dx - info->var.xoffset; - int y = cursor->image.dy - info->var.yoffset; - - if (cursor->enable) - mode |= PM2F_CURSORMODE_CURSOR_ENABLE; - - pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_MODE, mode); - - if (!cursor->enable) - x = 2047; /* push it outside display */ - pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_LOW, x & 0xff); - pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_HIGH, (x >> 8) & 0xf); - pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_LOW, y & 0xff); - pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_HIGH, (y >> 8) & 0xf); - - /* - * If the cursor is not be changed this means either we want the - * current cursor state (if enable is set) or we want to query what - * we can do with the cursor (if enable is not set) - */ - if (!cursor->set) - return 0; - - if (cursor->set & FB_CUR_SETHOT) { - pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_HOT, - cursor->hot.x & 0x3f); - pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_HOT, - cursor->hot.y & 0x3f); - } - - if (cursor->set & FB_CUR_SETCMAP) { - u32 fg_idx = cursor->image.fg_color; - u32 bg_idx = cursor->image.bg_color; - struct fb_cmap cmap = info->cmap; - - /* the X11 driver says one should use these color registers */ - pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_CURSOR_PALETTE >> 8); - pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 0, - cmap.red[bg_idx] >> 8 ); - pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 1, - cmap.green[bg_idx] >> 8 ); - pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 2, - cmap.blue[bg_idx] >> 8 ); - - pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 3, - cmap.red[fg_idx] >> 8 ); - pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 4, - cmap.green[fg_idx] >> 8 ); - pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 5, - cmap.blue[fg_idx] >> 8 ); - pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0); - } - - if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { - u8 *bitmap = (u8 *)cursor->image.data; - u8 *mask = (u8 *)cursor->mask; - int i; - int pos = PM2VI_RD_CURSOR_PATTERN; - - for (i = 0; i < cursor->image.height; i++) { - int j = (cursor->image.width + 7) >> 3; - int k = 8 - j; - - pm2_WR(par, PM2VR_RD_INDEX_HIGH, pos >> 8); - - for (; j > 0; j--) { - u8 data = *bitmap ^ *mask; - - if (cursor->rop == ROP_COPY) - data = *mask & *bitmap; - /* Upper 4 bits of bitmap data */ - pm2v_RDAC_WR(par, pos++, - cursor_bits_lookup[data >> 4] | - (cursor_bits_lookup[*mask >> 4] << 1)); - /* Lower 4 bits of bitmap */ - pm2v_RDAC_WR(par, pos++, - cursor_bits_lookup[data & 0xf] | - (cursor_bits_lookup[*mask & 0xf] << 1)); - bitmap++; - mask++; - } - for (; k > 0; k--) { - pm2v_RDAC_WR(par, pos++, 0); - pm2v_RDAC_WR(par, pos++, 0); - } - } - - while (pos < (1024 + PM2VI_RD_CURSOR_PATTERN)) { - pm2_WR(par, PM2VR_RD_INDEX_HIGH, pos >> 8); - pm2v_RDAC_WR(par, pos++, 0); - } - - pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0); - } - return 0; -} - -static int pm2fb_cursor(struct fb_info *info, struct fb_cursor *cursor) -{ - struct pm2fb_par *par = info->par; - u8 mode; - - if (!hwcursor) - return -EINVAL; /* just to force soft_cursor() call */ - - /* Too large of a cursor or wrong bpp :-( */ - if (cursor->image.width > 64 || - cursor->image.height > 64 || - cursor->image.depth > 1) - return -EINVAL; - - if (par->type == PM2_TYPE_PERMEDIA2V) - return pm2vfb_cursor(info, cursor); - - mode = 0x40; - if (cursor->enable) - mode = 0x43; - - pm2_RDAC_WR(par, PM2I_RD_CURSOR_CONTROL, mode); - - /* - * If the cursor is not be changed this means either we want the - * current cursor state (if enable is set) or we want to query what - * we can do with the cursor (if enable is not set) - */ - if (!cursor->set) - return 0; - - if (cursor->set & FB_CUR_SETPOS) { - int x = cursor->image.dx - info->var.xoffset + 63; - int y = cursor->image.dy - info->var.yoffset + 63; - - WAIT_FIFO(par, 4); - pm2_WR(par, PM2R_RD_CURSOR_X_LSB, x & 0xff); - pm2_WR(par, PM2R_RD_CURSOR_X_MSB, (x >> 8) & 0x7); - pm2_WR(par, PM2R_RD_CURSOR_Y_LSB, y & 0xff); - pm2_WR(par, PM2R_RD_CURSOR_Y_MSB, (y >> 8) & 0x7); - } - - if (cursor->set & FB_CUR_SETCMAP) { - u32 fg_idx = cursor->image.fg_color; - u32 bg_idx = cursor->image.bg_color; - - WAIT_FIFO(par, 7); - pm2_WR(par, PM2R_RD_CURSOR_COLOR_ADDRESS, 1); - pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA, - info->cmap.red[bg_idx] >> 8); - pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA, - info->cmap.green[bg_idx] >> 8); - pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA, - info->cmap.blue[bg_idx] >> 8); - - pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA, - info->cmap.red[fg_idx] >> 8); - pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA, - info->cmap.green[fg_idx] >> 8); - pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA, - info->cmap.blue[fg_idx] >> 8); - } - - if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { - u8 *bitmap = (u8 *)cursor->image.data; - u8 *mask = (u8 *)cursor->mask; - int i; - - WAIT_FIFO(par, 1); - pm2_WR(par, PM2R_RD_PALETTE_WRITE_ADDRESS, 0); - - for (i = 0; i < cursor->image.height; i++) { - int j = (cursor->image.width + 7) >> 3; - int k = 8 - j; - - WAIT_FIFO(par, 8); - for (; j > 0; j--) { - u8 data = *bitmap ^ *mask; - - if (cursor->rop == ROP_COPY) - data = *mask & *bitmap; - /* bitmap data */ - pm2_WR(par, PM2R_RD_CURSOR_DATA, data); - bitmap++; - mask++; - } - for (; k > 0; k--) - pm2_WR(par, PM2R_RD_CURSOR_DATA, 0); - } - for (; i < 64; i++) { - int j = 8; - WAIT_FIFO(par, 8); - while (j-- > 0) - pm2_WR(par, PM2R_RD_CURSOR_DATA, 0); - } - - mask = (u8 *)cursor->mask; - for (i = 0; i < cursor->image.height; i++) { - int j = (cursor->image.width + 7) >> 3; - int k = 8 - j; - - WAIT_FIFO(par, 8); - for (; j > 0; j--) { - /* mask */ - pm2_WR(par, PM2R_RD_CURSOR_DATA, *mask); - mask++; - } - for (; k > 0; k--) - pm2_WR(par, PM2R_RD_CURSOR_DATA, 0); - } - for (; i < 64; i++) { - int j = 8; - WAIT_FIFO(par, 8); - while (j-- > 0) - pm2_WR(par, PM2R_RD_CURSOR_DATA, 0); - } - } - return 0; -} - -/* ------------ Hardware Independent Functions ------------ */ - -/* - * Frame buffer operations - */ - -static struct fb_ops pm2fb_ops = { - .owner = THIS_MODULE, - .fb_check_var = pm2fb_check_var, - .fb_set_par = pm2fb_set_par, - .fb_setcolreg = pm2fb_setcolreg, - .fb_blank = pm2fb_blank, - .fb_pan_display = pm2fb_pan_display, - .fb_fillrect = pm2fb_fillrect, - .fb_copyarea = pm2fb_copyarea, - .fb_imageblit = pm2fb_imageblit, - .fb_sync = pm2fb_sync, - .fb_cursor = pm2fb_cursor, -}; - -/* - * PCI stuff - */ - - -/** - * Device initialisation - * - * Initialise and allocate resource for PCI device. - * - * @param pdev PCI device. - * @param id PCI device ID. - */ -static int pm2fb_probe(struct pci_dev *pdev, const struct pci_device_id *id) -{ - struct pm2fb_par *default_par; - struct fb_info *info; - int err; - int retval = -ENXIO; - - err = pci_enable_device(pdev); - if (err) { - printk(KERN_WARNING "pm2fb: Can't enable pdev: %d\n", err); - return err; - } - - info = framebuffer_alloc(sizeof(struct pm2fb_par), &pdev->dev); - if (!info) - return -ENOMEM; - default_par = info->par; - - switch (pdev->device) { - case PCI_DEVICE_ID_TI_TVP4020: - strcpy(pm2fb_fix.id, "TVP4020"); - default_par->type = PM2_TYPE_PERMEDIA2; - break; - case PCI_DEVICE_ID_3DLABS_PERMEDIA2: - strcpy(pm2fb_fix.id, "Permedia2"); - default_par->type = PM2_TYPE_PERMEDIA2; - break; - case PCI_DEVICE_ID_3DLABS_PERMEDIA2V: - strcpy(pm2fb_fix.id, "Permedia2v"); - default_par->type = PM2_TYPE_PERMEDIA2V; - break; - } - - pm2fb_fix.mmio_start = pci_resource_start(pdev, 0); - pm2fb_fix.mmio_len = PM2_REGS_SIZE; - -#if defined(__BIG_ENDIAN) - /* - * PM2 has a 64k register file, mapped twice in 128k. Lower - * map is little-endian, upper map is big-endian. - */ - pm2fb_fix.mmio_start += PM2_REGS_SIZE; - DPRINTK("Adjusting register base for big-endian.\n"); -#endif - DPRINTK("Register base at 0x%lx\n", pm2fb_fix.mmio_start); - - /* Registers - request region and map it. */ - if (!request_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len, - "pm2fb regbase")) { - printk(KERN_WARNING "pm2fb: Can't reserve regbase.\n"); - goto err_exit_neither; - } - default_par->v_regs = - ioremap_nocache(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len); - if (!default_par->v_regs) { - printk(KERN_WARNING "pm2fb: Can't remap %s register area.\n", - pm2fb_fix.id); - release_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len); - goto err_exit_neither; - } - - /* Stash away memory register info for use when we reset the board */ - default_par->mem_control = pm2_RD(default_par, PM2R_MEM_CONTROL); - default_par->boot_address = pm2_RD(default_par, PM2R_BOOT_ADDRESS); - default_par->mem_config = pm2_RD(default_par, PM2R_MEM_CONFIG); - DPRINTK("MemControl 0x%x BootAddress 0x%x MemConfig 0x%x\n", - default_par->mem_control, default_par->boot_address, - default_par->mem_config); - - if (default_par->mem_control == 0 && - default_par->boot_address == 0x31 && - default_par->mem_config == 0x259fffff) { - default_par->memclock = CVPPC_MEMCLOCK; - default_par->mem_control = 0; - default_par->boot_address = 0x20; - default_par->mem_config = 0xe6002021; - if (pdev->subsystem_vendor == 0x1048 && - pdev->subsystem_device == 0x0a31) { - DPRINTK("subsystem_vendor: %04x, " - "subsystem_device: %04x\n", - pdev->subsystem_vendor, pdev->subsystem_device); - DPRINTK("We have not been initialized by VGA BIOS and " - "are running on an Elsa Winner 2000 Office\n"); - DPRINTK("Initializing card timings manually...\n"); - default_par->memclock = 100000; - } - if (pdev->subsystem_vendor == 0x3d3d && - pdev->subsystem_device == 0x0100) { - DPRINTK("subsystem_vendor: %04x, " - "subsystem_device: %04x\n", - pdev->subsystem_vendor, pdev->subsystem_device); - DPRINTK("We have not been initialized by VGA BIOS and " - "are running on an 3dlabs reference board\n"); - DPRINTK("Initializing card timings manually...\n"); - default_par->memclock = 74894; - } - } - - /* Now work out how big lfb is going to be. */ - switch (default_par->mem_config & PM2F_MEM_CONFIG_RAM_MASK) { - case PM2F_MEM_BANKS_1: - pm2fb_fix.smem_len = 0x200000; - break; - case PM2F_MEM_BANKS_2: - pm2fb_fix.smem_len = 0x400000; - break; - case PM2F_MEM_BANKS_3: - pm2fb_fix.smem_len = 0x600000; - break; - case PM2F_MEM_BANKS_4: - pm2fb_fix.smem_len = 0x800000; - break; - } - pm2fb_fix.smem_start = pci_resource_start(pdev, 1); - - /* Linear frame buffer - request region and map it. */ - if (!request_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len, - "pm2fb smem")) { - printk(KERN_WARNING "pm2fb: Can't reserve smem.\n"); - goto err_exit_mmio; - } - info->screen_base = - ioremap_nocache(pm2fb_fix.smem_start, pm2fb_fix.smem_len); - if (!info->screen_base) { - printk(KERN_WARNING "pm2fb: Can't ioremap smem area.\n"); - release_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len); - goto err_exit_mmio; - } - -#ifdef CONFIG_MTRR - default_par->mtrr_handle = -1; - if (!nomtrr) - default_par->mtrr_handle = - mtrr_add(pm2fb_fix.smem_start, - pm2fb_fix.smem_len, - MTRR_TYPE_WRCOMB, 1); -#endif - - info->fbops = &pm2fb_ops; - info->fix = pm2fb_fix; - info->pseudo_palette = default_par->palette; - info->flags = FBINFO_DEFAULT | - FBINFO_HWACCEL_YPAN | - FBINFO_HWACCEL_COPYAREA | - FBINFO_HWACCEL_IMAGEBLIT | - FBINFO_HWACCEL_FILLRECT; - - info->pixmap.addr = kmalloc(PM2_PIXMAP_SIZE, GFP_KERNEL); - if (!info->pixmap.addr) { - retval = -ENOMEM; - goto err_exit_pixmap; - } - info->pixmap.size = PM2_PIXMAP_SIZE; - info->pixmap.buf_align = 4; - info->pixmap.scan_align = 4; - info->pixmap.access_align = 32; - info->pixmap.flags = FB_PIXMAP_SYSTEM; - - if (noaccel) { - printk(KERN_DEBUG "disabling acceleration\n"); - info->flags |= FBINFO_HWACCEL_DISABLED; - info->pixmap.scan_align = 1; - } - - if (!mode_option) - mode_option = "640x480@60"; - - err = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 8); - if (!err || err == 4) - info->var = pm2fb_var; - - retval = fb_alloc_cmap(&info->cmap, 256, 0); - if (retval < 0) - goto err_exit_both; - - retval = register_framebuffer(info); - if (retval < 0) - goto err_exit_all; - - fb_info(info, "%s frame buffer device, memory = %dK\n", - info->fix.id, pm2fb_fix.smem_len / 1024); - - /* - * Our driver data - */ - pci_set_drvdata(pdev, info); - - return 0; - - err_exit_all: - fb_dealloc_cmap(&info->cmap); - err_exit_both: - kfree(info->pixmap.addr); - err_exit_pixmap: - iounmap(info->screen_base); - release_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len); - err_exit_mmio: - iounmap(default_par->v_regs); - release_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len); - err_exit_neither: - framebuffer_release(info); - return retval; -} - -/** - * Device removal. - * - * Release all device resources. - * - * @param pdev PCI device to clean up. - */ -static void pm2fb_remove(struct pci_dev *pdev) -{ - struct fb_info *info = pci_get_drvdata(pdev); - struct fb_fix_screeninfo *fix = &info->fix; - struct pm2fb_par *par = info->par; - - unregister_framebuffer(info); - -#ifdef CONFIG_MTRR - if (par->mtrr_handle >= 0) - mtrr_del(par->mtrr_handle, info->fix.smem_start, - info->fix.smem_len); -#endif /* CONFIG_MTRR */ - iounmap(info->screen_base); - release_mem_region(fix->smem_start, fix->smem_len); - iounmap(par->v_regs); - release_mem_region(fix->mmio_start, fix->mmio_len); - - fb_dealloc_cmap(&info->cmap); - kfree(info->pixmap.addr); - framebuffer_release(info); -} - -static struct pci_device_id pm2fb_id_table[] = { - { PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TVP4020, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, - { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, - { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2V, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, - { 0, } -}; - -static struct pci_driver pm2fb_driver = { - .name = "pm2fb", - .id_table = pm2fb_id_table, - .probe = pm2fb_probe, - .remove = pm2fb_remove, -}; - -MODULE_DEVICE_TABLE(pci, pm2fb_id_table); - - -#ifndef MODULE -/** - * Parse user specified options. - * - * This is, comma-separated options following `video=pm2fb:'. - */ -static int __init pm2fb_setup(char *options) -{ - char *this_opt; - - if (!options || !*options) - return 0; - - while ((this_opt = strsep(&options, ",")) != NULL) { - if (!*this_opt) - continue; - if (!strcmp(this_opt, "lowhsync")) - lowhsync = 1; - else if (!strcmp(this_opt, "lowvsync")) - lowvsync = 1; - else if (!strncmp(this_opt, "hwcursor=", 9)) - hwcursor = simple_strtoul(this_opt + 9, NULL, 0); -#ifdef CONFIG_MTRR - else if (!strncmp(this_opt, "nomtrr", 6)) - nomtrr = 1; -#endif - else if (!strncmp(this_opt, "noaccel", 7)) - noaccel = 1; - else - mode_option = this_opt; - } - return 0; -} -#endif - - -static int __init pm2fb_init(void) -{ -#ifndef MODULE - char *option = NULL; - - if (fb_get_options("pm2fb", &option)) - return -ENODEV; - pm2fb_setup(option); -#endif - - return pci_register_driver(&pm2fb_driver); -} - -module_init(pm2fb_init); - -#ifdef MODULE -/* - * Cleanup - */ - -static void __exit pm2fb_exit(void) -{ - pci_unregister_driver(&pm2fb_driver); -} -#endif - -#ifdef MODULE -module_exit(pm2fb_exit); - -module_param(mode_option, charp, 0); -MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'"); -module_param_named(mode, mode_option, charp, 0); -MODULE_PARM_DESC(mode, "Initial video mode e.g. '648x480-8@60' (deprecated)"); -module_param(lowhsync, bool, 0); -MODULE_PARM_DESC(lowhsync, "Force horizontal sync low regardless of mode"); -module_param(lowvsync, bool, 0); -MODULE_PARM_DESC(lowvsync, "Force vertical sync low regardless of mode"); -module_param(noaccel, bool, 0); -MODULE_PARM_DESC(noaccel, "Disable acceleration"); -module_param(hwcursor, int, 0644); -MODULE_PARM_DESC(hwcursor, "Enable hardware cursor " - "(1=enable, 0=disable, default=1)"); -#ifdef CONFIG_MTRR -module_param(nomtrr, bool, 0); -MODULE_PARM_DESC(nomtrr, "Disable MTRR support (0 or 1=disabled) (default=0)"); -#endif - -MODULE_AUTHOR("Jim Hague <jim.hague@acm.org>"); -MODULE_DESCRIPTION("Permedia2 framebuffer device driver"); -MODULE_LICENSE("GPL"); -#endif |