Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/video/pm2fb.c b/drivers/video/pm2fb.c
new file mode 100644
index 0000000..5dcedde
--- /dev/null
+++ b/drivers/video/pm2fb.c
@@ -0,0 +1,1314 @@
+/*
+ * 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/config.h>
+#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/tty.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+
+#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, __FUNCTION__ , ## b)
+#else
+#define DPRINTK(a,b...)
+#endif
+
+/*
+ * Driver data
+ */
+static char *mode __devinitdata = NULL;
+
+/*
+ * 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 int lowhsync __devinitdata = 0;
+static int lowvsync __devinitdata = 0;
+
+/*
+ * The hardware state of the graphics card that isn't part of the
+ * screeninfo.
+ */
+struct pm2fb_par
+{
+ pm2type_t type; /* Board type */
+ u32 fb_size; /* framebuffer memory size */
+ unsigned char __iomem *v_fb; /* virtual address of frame buffer */
+ 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 */
+};
+
+/*
+ * 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 __devinitdata = {
+ .id = "",
+ .type = FB_TYPE_PACKED_PIXELS,
+ .visual = FB_VISUAL_PSEUDOCOLOR,
+ .xpanstep = 1,
+ .ypanstep = 1,
+ .ywrapstep = 0,
+ .accel = FB_ACCEL_NONE,
+};
+
+/*
+ * Default video mode. In case the modedb doesn't work.
+ */
+static struct fb_var_screeninfo pm2fb_var __devinitdata = {
+ /* "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
+ */
+
+inline static u32 RD32(unsigned char __iomem *base, s32 off)
+{
+ return fb_readl(base + off);
+}
+
+inline static void WR32(unsigned char __iomem *base, s32 off, u32 v)
+{
+ fb_writel(v, base + off);
+}
+
+inline static u32 pm2_RD(struct pm2fb_par* p, s32 off)
+{
+ return RD32(p->v_regs, off);
+}
+
+inline static void pm2_WR(struct pm2fb_par* p, s32 off, u32 v)
+{
+ WR32(p->v_regs, off, v);
+}
+
+inline static u32 pm2_RDAC_RD(struct pm2fb_par* p, s32 idx)
+{
+ int index = PM2R_RD_INDEXED_DATA;
+ switch (p->type) {
+ case PM2_TYPE_PERMEDIA2:
+ pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx);
+ break;
+ case PM2_TYPE_PERMEDIA2V:
+ pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff);
+ index = PM2VR_RD_INDEXED_DATA;
+ break;
+ }
+ mb();
+ return pm2_RD(p, index);
+}
+
+inline static void pm2_RDAC_WR(struct pm2fb_par* p, s32 idx, u32 v)
+{
+ int index = PM2R_RD_INDEXED_DATA;
+ switch (p->type) {
+ case PM2_TYPE_PERMEDIA2:
+ pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx);
+ break;
+ case PM2_TYPE_PERMEDIA2V:
+ pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff);
+ index = PM2VR_RD_INDEXED_DATA;
+ break;
+ }
+ mb();
+ pm2_WR(p, index, v);
+}
+
+inline static void pm2v_RDAC_WR(struct pm2fb_par* p, s32 idx, u32 v)
+{
+ pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff);
+ mb();
+ pm2_WR(p, PM2VR_RD_INDEXED_DATA, v);
+}
+
+#ifdef CONFIG_FB_PM2_FIFO_DISCONNECT
+#define WAIT_FIFO(p,a)
+#else
+inline static void WAIT_FIFO(struct pm2fb_par* p, u32 a)
+{
+ while( pm2_RD(p, PM2R_IN_FIFO_SPACE) < a );
+ mb();
+}
+#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 8:
+ timing >>= 2 + is64;
+ break;
+ case 16:
+ timing >>= 1 + is64;
+ break;
+ case 24:
+ timing = (timing * 3) >> (2 + is64);
+ break;
+ case 32:
+ if (is64)
+ timing >>= 1;
+ break;
+ }
+ 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 (n = 1; n; n++) {
+ for ( m = 1; m; m++) {
+ for ( p = 0; p < 2; p++) {
+ f = PM2_REFERENCE_CLOCK * n / (m * (1 << (p + 1)));
+ 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)
+ ;
+ 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, 52);
+ 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);
+ 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);
+ break;
+ case PM2_TYPE_PERMEDIA2V:
+ pm2v_RDAC_WR(p, PM2VI_RD_MISC_CONTROL, 1); /* 8bit */
+ break;
+ }
+ 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);
+}
+
+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, 4);
+#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;
+
+ pm2_mnp(clk, &m, &n, &p);
+ WAIT_FIFO(par, 10);
+ pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 6);
+ wmb();
+ pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_1, m);
+ pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_2, n);
+ wmb();
+ pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 8|p);
+ wmb();
+ pm2_RDAC_RD(par, PM2I_RD_MEMORY_CLOCK_STATUS);
+ rmb();
+ for (i = 256;
+ i && !(pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED);
+ i--)
+ ;
+}
+
+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, 8);
+ pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A3, 0);
+ wmb();
+ pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A1, m);
+ pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A2, n);
+ wmb();
+ pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A3, 8|p);
+ wmb();
+ pm2_RDAC_RD(par, PM2I_RD_PIXEL_CLOCK_STATUS);
+ rmb();
+ for (i = 256;
+ i && !(pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED);
+ i--)
+ ;
+ 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;
+
+ 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, 5);
+ 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);
+ pm2v_RDAC_WR(p, PM2VI_RD_MISC_CONTROL, 1);
+ 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;
+ }
+
+ 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;
+ }
+
+ switch(var->bits_per_pixel) {
+ case 8:
+ var->red.length = var->green.length = 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 = var->green.length = 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 = var->green.length = var->blue.length = 8;
+ break;
+ }
+ var->height = 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 = (struct pm2fb_par *) info->par;
+ u32 pixclock;
+ u32 width, height, depth;
+ 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 xres;
+ int data64;
+
+ reset_card(par);
+ reset_config(par);
+ clear_palette(par);
+ if ( par->memclock )
+ set_memclock(par, par->memclock);
+
+ width = (info->var.xres_virtual + 7) & ~7;
+ height = info->var.yres_virtual;
+ depth = (info->var.bits_per_pixel + 7) & ~7;
+ depth = (depth > 32) ? 32 : depth;
+ data64 = depth > 8 || par->type == PM2_TYPE_PERMEDIA2V;
+
+ xres = (info->var.xres + 31) & ~31;
+ 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);
+ pm2_RDAC_WR(par, PM2I_RD_COLOR_KEY_CONTROL,
+ ( depth == 8 ) ? 0 : PM2F_COLOR_KEY_TEST_OFF);
+ switch (depth) {
+ case 8:
+ pm2_WR(par, PM2R_FB_READ_PIXEL, 0);
+ clrformat = 0x0e;
+ 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;
+ 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;
+ 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;
+ 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, 4);
+ switch (par->type) {
+ case PM2_TYPE_PERMEDIA2:
+ pm2_RDAC_WR(par, PM2I_RD_COLOR_MODE, clrmode);
+ break;
+ case PM2_TYPE_PERMEDIA2V:
+ pm2v_RDAC_WR(par, PM2VI_RD_PIXEL_SIZE, pixsize);
+ pm2v_RDAC_WR(par, PM2VI_RD_COLOR_FORMAT, clrformat);
+ 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 = (struct pm2fb_par *) info->par;
+
+ if (regno >= info->cmap.len) /* no. of hw registers */
+ return 1;
+ /*
+ * Program hardware... do anything you want with transp
+ */
+
+ /* grayscale works only partially under directcolor */
+ if (info->var.grayscale) {
+ /* grayscale = 0.30*R + 0.59*G + 0.11*B */
+ 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 widht 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 1;
+
+ 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:
+ ((u32*)(info->pseudo_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 = (struct pm2fb_par *) info->par;
+ u32 base;
+ u32 depth;
+ u32 xres;
+
+ xres = (var->xres + 31) & ~31;
+ depth = (var->bits_per_pixel + 7) & ~7;
+ 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 = (struct pm2fb_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;
+}
+
+/* ------------ 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 = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_cursor = soft_cursor,
+};
+
+/*
+ * PCI stuff
+ */
+
+
+/**
+ * Device initialisation
+ *
+ * Initialise and allocate resource for PCI device.
+ *
+ * @param pdev PCI device.
+ * @param id PCI device ID.
+ */
+static int __devinit pm2fb_probe(struct pci_dev *pdev,
+ const struct pci_device_id *id)
+{
+ struct pm2fb_par *default_par;
+ struct fb_info *info;
+ int size, err;
+ int err_retval = -ENXIO;
+
+ err = pci_enable_device(pdev);
+ if ( err ) {
+ printk(KERN_WARNING "pm2fb: Can't enable pdev: %d\n", err);
+ return err;
+ }
+
+ size = sizeof(struct pm2fb_par) + 256 * sizeof(u32);
+ info = framebuffer_alloc(size, &pdev->dev);
+ if ( !info )
+ return -ENOMEM;
+ default_par = (struct pm2fb_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);
+
+ /* 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:
+ default_par->fb_size=0x200000;
+ break;
+ case PM2F_MEM_BANKS_2:
+ default_par->fb_size=0x400000;
+ break;
+ case PM2F_MEM_BANKS_3:
+ default_par->fb_size=0x600000;
+ break;
+ case PM2F_MEM_BANKS_4:
+ default_par->fb_size=0x800000;
+ break;
+ }
+ default_par->memclock = CVPPC_MEMCLOCK;
+ pm2fb_fix.smem_start = pci_resource_start(pdev, 1);
+ pm2fb_fix.smem_len = default_par->fb_size;
+
+ /* 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 = default_par->v_fb =
+ ioremap_nocache(pm2fb_fix.smem_start, pm2fb_fix.smem_len);
+ if ( !default_par->v_fb ) {
+ 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;
+ }
+
+ info->fbops = &pm2fb_ops;
+ info->fix = pm2fb_fix;
+ info->pseudo_palette = (void *)(default_par + 1);
+ info->flags = FBINFO_DEFAULT |
+ FBINFO_HWACCEL_YPAN;
+
+ if (!mode)
+ mode = "640x480@60";
+
+ err = fb_find_mode(&info->var, info, mode, NULL, 0, NULL, 8);
+ if (!err || err == 4)
+ info->var = pm2fb_var;
+
+ if (fb_alloc_cmap(&info->cmap, 256, 0) < 0)
+ goto err_exit_all;
+
+ if (register_framebuffer(info) < 0)
+ goto err_exit_both;
+
+ printk(KERN_INFO "fb%d: %s frame buffer device, memory = %dK.\n",
+ info->node, info->fix.id, default_par->fb_size / 1024);
+
+ /*
+ * Our driver data
+ */
+ pci_set_drvdata(pdev, info);
+
+ return 0;
+
+ err_exit_all:
+ fb_dealloc_cmap(&info->cmap);
+ err_exit_both:
+ 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 err_retval;
+}
+
+/**
+ * Device removal.
+ *
+ * Release all device resources.
+ *
+ * @param pdev PCI device to clean up.
+ */
+static void __devexit 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);
+
+ 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);
+
+ pci_set_drvdata(pdev, NULL);
+ kfree(info);
+}
+
+static struct pci_device_id pm2fb_id_table[] = {
+ { PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TVP4020,
+ PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16,
+ 0xff0000, 0 },
+ { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2,
+ PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16,
+ 0xff0000, 0 },
+ { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2V,
+ PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16,
+ 0xff0000, 0 },
+ { 0, }
+};
+
+static struct pci_driver pm2fb_driver = {
+ .name = "pm2fb",
+ .id_table = pm2fb_id_table,
+ .probe = pm2fb_probe,
+ .remove = __devexit_p(pm2fb_remove),
+};
+
+MODULE_DEVICE_TABLE(pci, pm2fb_id_table);
+
+
+#ifndef MODULE
+/**
+ * Parse user speficied 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 {
+ mode = 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, charp, 0);
+MODULE_PARM_DESC(mode, "Preferred video mode e.g. '648x480-8@60'");
+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_AUTHOR("Jim Hague <jim.hague@acm.org>");
+MODULE_DESCRIPTION("Permedia2 framebuffer device driver");
+MODULE_LICENSE("GPL");
+#endif