/* debug output */
#ifdef CIRRUSFB_DEBUG
#define DPRINTK(fmt, args...) \
- printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
+ printk(KERN_DEBUG "%s: " fmt, __func__ , ## args)
#else
#define DPRINTK(fmt, args...)
#endif
#define assert(expr) \
if (!(expr)) { \
printk("Assertion failed! %s,%s,%s,line=%d\n", \
- #expr, __FILE__, __FUNCTION__, __LINE__); \
+ #expr, __FILE__, __func__, __LINE__); \
}
#else
#define assert(expr)
struct cirrusfb_regs currentmode;
int blank_mode;
+ u32 pseudo_palette[16];
- u32 pseudo_palette[16];
-
-#ifdef CONFIG_ZORRO
- struct zorro_dev *zdev;
-#endif
-#ifdef CONFIG_PCI
- struct pci_dev *pdev;
-#endif
void (*unmap)(struct fb_info *info);
};
-static unsigned cirrusfb_def_mode = 1;
static int noaccel;
-
-/*
- * Predefined Video Modes
- */
-
-static const struct {
- const char *name;
- struct fb_var_screeninfo var;
-} cirrusfb_predefined[] = {
- {
- /* autodetect mode */
- .name = "Autodetect",
- }, {
- /* 640x480, 31.25 kHz, 60 Hz, 25 MHz PixClock */
- .name = "640x480",
- .var = {
- .xres = 640,
- .yres = 480,
- .xres_virtual = 640,
- .yres_virtual = 480,
- .bits_per_pixel = 8,
- .red = { .length = 8 },
- .green = { .length = 8 },
- .blue = { .length = 8 },
- .width = -1,
- .height = -1,
- .pixclock = 40000,
- .left_margin = 48,
- .right_margin = 16,
- .upper_margin = 32,
- .lower_margin = 8,
- .hsync_len = 96,
- .vsync_len = 4,
- .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
- }
- }, {
- /* 800x600, 48 kHz, 76 Hz, 50 MHz PixClock */
- .name = "800x600",
- .var = {
- .xres = 800,
- .yres = 600,
- .xres_virtual = 800,
- .yres_virtual = 600,
- .bits_per_pixel = 8,
- .red = { .length = 8 },
- .green = { .length = 8 },
- .blue = { .length = 8 },
- .width = -1,
- .height = -1,
- .pixclock = 20000,
- .left_margin = 128,
- .right_margin = 16,
- .upper_margin = 24,
- .lower_margin = 2,
- .hsync_len = 96,
- .vsync_len = 6,
- .vmode = FB_VMODE_NONINTERLACED
- }
- }, {
- /*
- * Modeline from XF86Config:
- * Mode "1024x768" 80 1024 1136 1340 1432 768 770 774 805
- */
- /* 1024x768, 55.8 kHz, 70 Hz, 80 MHz PixClock */
- .name = "1024x768",
- .var = {
- .xres = 1024,
- .yres = 768,
- .xres_virtual = 1024,
- .yres_virtual = 768,
- .bits_per_pixel = 8,
- .red = { .length = 8 },
- .green = { .length = 8 },
- .blue = { .length = 8 },
- .width = -1,
- .height = -1,
- .pixclock = 12500,
- .left_margin = 144,
- .right_margin = 32,
- .upper_margin = 30,
- .lower_margin = 2,
- .hsync_len = 192,
- .vsync_len = 6,
- .vmode = FB_VMODE_NONINTERLACED
- }
- }
-};
-
-#define NUM_TOTAL_MODES ARRAY_SIZE(cirrusfb_predefined)
+static char *mode_option __devinitdata = "640x480@60";
/****************************************************************************/
/**** BEGIN PROTOTYPES ******************************************************/
static int cirrusfb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
- int nom, den; /* translyting from pixels->bytes */
- int yres, i;
- static struct { int xres, yres; } modes[] =
- { { 1600, 1280 },
- { 1280, 1024 },
- { 1024, 768 },
- { 800, 600 },
- { 640, 480 },
- { -1, -1 } };
+ int yres;
+ /* memory size in pixels */
+ unsigned pixels = info->screen_size * 8 / var->bits_per_pixel;
switch (var->bits_per_pixel) {
case 1:
- nom = 4;
- den = 8;
+ pixels /= 4;
break; /* 8 pixel per byte, only 1/4th of mem usable */
case 8:
case 16:
- case 24:
case 32:
- nom = var->bits_per_pixel / 8;
- den = 1;
break; /* 1 pixel == 1 byte */
default:
printk(KERN_ERR "cirrusfb: mode %dx%dx%d rejected..."
return -EINVAL;
}
- if (var->xres * nom / den * var->yres > info->screen_size) {
- printk(KERN_ERR "cirrusfb: mode %dx%dx%d rejected..."
- "resolution too high to fit into video memory!\n",
- var->xres, var->yres, var->bits_per_pixel);
- DPRINTK("EXIT - EINVAL error\n");
- return -EINVAL;
- }
-
+ if (var->xres_virtual < var->xres)
+ var->xres_virtual = var->xres;
/* use highest possible virtual resolution */
- if (var->xres_virtual == -1 &&
- var->yres_virtual == -1) {
- printk(KERN_INFO
- "cirrusfb: using maximum available virtual resolution\n");
- for (i = 0; modes[i].xres != -1; i++) {
- int size = modes[i].xres * nom / den * modes[i].yres;
- if (size < info->screen_size / 2)
- break;
- }
- if (modes[i].xres == -1) {
- printk(KERN_ERR "cirrusfb: could not find a virtual "
- "resolution that fits into video memory!!\n");
- DPRINTK("EXIT - EINVAL error\n");
- return -EINVAL;
- }
- var->xres_virtual = modes[i].xres;
- var->yres_virtual = modes[i].yres;
+ if (var->yres_virtual == -1) {
+ var->yres_virtual = pixels / var->xres_virtual;
printk(KERN_INFO "cirrusfb: virtual resolution set to "
"maximum of %dx%d\n", var->xres_virtual,
var->yres_virtual);
}
-
- if (var->xres_virtual < var->xres)
- var->xres_virtual = var->xres;
if (var->yres_virtual < var->yres)
var->yres_virtual = var->yres;
+ if (var->xres_virtual * var->yres_virtual > pixels) {
+ printk(KERN_ERR "cirrusfb: mode %dx%dx%d rejected... "
+ "virtual resolution too high to fit into video memory!\n",
+ var->xres_virtual, var->yres_virtual,
+ var->bits_per_pixel);
+ DPRINTK("EXIT - EINVAL error\n");
+ return -EINVAL;
+ }
+
+
if (var->xoffset < 0)
var->xoffset = 0;
if (var->yoffset < 0)
var->blue.length = 5;
break;
- case 24:
case 32:
if (isPReP) {
var->red.offset = 8;
break;
case 16:
- case 24:
case 32:
info->fix.line_length = var->xres_virtual * maxclockidx;
info->fix.visual = FB_VISUAL_DIRECTCOLOR;
*/
else if (var->bits_per_pixel == 32) {
- DPRINTK("cirrusfb: preparing for 24/32 bit deep display\n");
+ DPRINTK("cirrusfb: preparing for 32 bit deep display\n");
switch (cinfo->btype) {
case BT_SD64:
/* Extended Sequencer Mode: 256c col. mode */
/* misc... */
WHDR(cinfo, 0); /* Hidden DAC register: - */
- printk(KERN_DEBUG "cirrusfb: This board has %ld bytes of DRAM memory\n",
- info->screen_size);
DPRINTK("EXIT\n");
return;
}
static void cirrusfb_pci_unmap(struct fb_info *info)
{
- struct cirrusfb_info *cinfo = info->par;
- struct pci_dev *pdev = cinfo->pdev;
+ struct pci_dev *pdev = to_pci_dev(info->device);
iounmap(info->screen_base);
#if 0 /* if system didn't claim this region, we would... */
static void __devexit cirrusfb_zorro_unmap(struct fb_info *info)
{
struct cirrusfb_info *cinfo = info->par;
- zorro_release_device(cinfo->zdev);
+ struct zorro_dev *zdev = to_zorro_dev(info->device);
+
+ zorro_release_device(zdev);
if (cinfo->btype == BT_PICASSO4) {
cinfo->regbase -= 0x600000;
iounmap((void *)cinfo->regbase);
iounmap(info->screen_base);
} else {
- if (zorro_resource_start(cinfo->zdev) > 0x01000000)
+ if (zorro_resource_start(zdev) > 0x01000000)
iounmap(info->screen_base);
}
}
if (cinfo->btype == BT_GD5480) {
if (var->bits_per_pixel == 16)
info->screen_base += 1 * MB_;
- if (var->bits_per_pixel == 24 || var->bits_per_pixel == 32)
+ if (var->bits_per_pixel == 32)
info->screen_base += 2 * MB_;
}
/* sanity checks */
assert(btype != BT_NONE);
+ /* set all the vital stuff */
+ cirrusfb_set_fbinfo(info);
+
DPRINTK("cirrusfb: (RAM start set to: 0x%p)\n", info->screen_base);
- /* Make pretend we've set the var so our structures are in a "good" */
- /* state, even though we haven't written the mode to the hw yet... */
- info->var = cirrusfb_predefined[cirrusfb_def_mode].var;
+ err = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 8);
+ if (!err) {
+ DPRINTK("wrong initial video mode\n");
+ err = -EINVAL;
+ goto err_dealloc_cmap;
+ }
+
info->var.activate = FB_ACTIVATE_NOW;
err = cirrusfb_decode_var(&info->var, &cinfo->currentmode, info);
if (err < 0) {
/* should never happen */
DPRINTK("choking on default var... umm, no good.\n");
- goto err_unmap_cirrusfb;
+ goto err_dealloc_cmap;
}
- /* set all the vital stuff */
- cirrusfb_set_fbinfo(info);
-
err = register_framebuffer(info);
if (err < 0) {
printk(KERN_ERR "cirrusfb: could not register "
err_dealloc_cmap:
fb_dealloc_cmap(&info->cmap);
-err_unmap_cirrusfb:
cinfo->unmap(info);
framebuffer_release(info);
return err;
}
cinfo = info->par;
- cinfo->pdev = pdev;
cinfo->btype = btype = (enum cirrus_board) ent->driver_data;
DPRINTK(" Found PCI device, base address 0 is 0x%x, btype set to %d\n",
info->screen_size = board_size;
cinfo->unmap = cirrusfb_pci_unmap;
- printk(KERN_INFO " RAM (%lu kB) at 0xx%lx, ",
- info->screen_size >> 10, board_addr);
- printk(KERN_INFO "Cirrus Logic chipset on PCI bus\n");
+ printk(KERN_INFO "RAM (%lu kB) at 0x%lx, Cirrus "
+ "Logic chipset on PCI bus\n",
+ info->screen_size >> 10, board_addr);
pci_set_drvdata(pdev, info);
ret = cirrusfb_register(info);
assert(z);
assert(btype != BT_NONE);
- cinfo->zdev = z;
board_addr = zorro_resource_start(z);
board_size = zorro_resource_len(z);
info->screen_size = size;
return 0;
while ((this_opt = strsep(&options, ",")) != NULL) {
- if (!*this_opt) continue;
+ if (!*this_opt)
+ continue;
DPRINTK("cirrusfb_setup: option '%s'\n", this_opt);
- for (i = 0; i < NUM_TOTAL_MODES; i++) {
- sprintf(s, "mode:%s", cirrusfb_predefined[i].name);
- if (strcmp(this_opt, s) == 0)
- cirrusfb_def_mode = i;
- }
if (!strcmp(this_opt, "noaccel"))
noaccel = 1;
+ else if (!strncmp(this_opt, "mode:", 5))
+ mode_option = this_opt + 5;
+ else
+ mode_option = this_opt;
}
return 0;
}
module_init(cirrusfb_init);
+module_param(mode_option, charp, 0);
+MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'");
+
#ifdef MODULE
module_exit(cirrusfb_exit);
#endif
f = freq * 10;
for (n = 32; n < 128; n++) {
+ int s = 0;
+
d = (143181 * n) / f;
if ((d >= 7) && (d <= 63)) {
- if (d > 31)
- d = (d / 2) * 2;
- h = (14318 * n) / d;
+ int temp = d;
+
+ if (temp > 31) {
+ s = 1;
+ temp >>= 1;
+ }
+ h = ((14318 * n) / temp) >> s;
if (abs(h - freq) < abs(*best - freq)) {
*best = h;
*nom = n;
- if (d < 32) {
- *den = d;
- *div = 0;
- } else {
- *den = d / 2;
- *div = 1;
- }
+ *den = temp;
+ *div = s;
}
}
- d = DIV_ROUND_UP(143181 * n, f);
+ d++;
if ((d >= 7) && (d <= 63)) {
- if (d > 31)
- d = (d / 2) * 2;
- h = (14318 * n) / d;
+ if (d > 31) {
+ s = 1;
+ d >>= 1;
+ }
+ h = ((14318 * n) / d) >> s;
if (abs(h - freq) < abs(*best - freq)) {
*best = h;
*nom = n;
- if (d < 32) {
- *den = d;
- *div = 0;
- } else {
- *den = d / 2;
- *div = 1;
- }
+ *den = d;
+ *div = s;
}
}
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff