diff options
author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2006-10-03 01:15:07 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-03 08:04:13 -0700 |
commit | b98fc9a34bfcfd2a04e58c4fc5e408fce13204bb (patch) | |
tree | 5de90c2ca0478f8eb8cf77401c8fd2192e613b9d /drivers/video/sstfb.c | |
parent | 3cb340ecbb010013229ac56f26707252ebed09b8 (diff) | |
download | kernel_samsung_tuna-b98fc9a34bfcfd2a04e58c4fc5e408fce13204bb.zip kernel_samsung_tuna-b98fc9a34bfcfd2a04e58c4fc5e408fce13204bb.tar.gz kernel_samsung_tuna-b98fc9a34bfcfd2a04e58c4fc5e408fce13204bb.tar.bz2 |
[PATCH] sstfb: cleanups
- Remove 24/32bit unused support (the chips don't do 24/32bit anyway)
- Clean up printk obfuscation
- Clean up lispitus in the if(())()) stuff
- Minor tidying
No functionality changes, may have a crack at hardware scrolling based
on my X driver once the cleanups are in.
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Antonino A. Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video/sstfb.c')
-rw-r--r-- | drivers/video/sstfb.c | 170 |
1 files changed, 55 insertions, 115 deletions
diff --git a/drivers/video/sstfb.c b/drivers/video/sstfb.c index dad54e7..711cb11 100644 --- a/drivers/video/sstfb.c +++ b/drivers/video/sstfb.c @@ -17,7 +17,10 @@ * (port driver to new frambuffer infrastructure) * 01/2003 Helge Deller <deller@gmx.de> * (initial work on fb hardware acceleration for voodoo2) - * + * 08/2006 Alan Cox <alan@redhat.com> + * Remove never finished and bogus 24/32bit support + * Clean up macro abuse + * Minor tidying for format. */ /* @@ -40,6 +43,7 @@ through the fifo. warning: issuing a nop command seems to need pci_fifo -FIXME: in case of failure in the init sequence, be sure we return to a safe state. +- FIXME: Use accelerator for 2D scroll -FIXME: 4MB boards have banked memory (FbiInit2 bits 1 & 20) */ @@ -67,9 +71,6 @@ #undef SST_DEBUG -/* enable 24/32 bpp functions ? (completely untested!) */ -#undef EN_24_32_BPP - /* Default video mode . 0 800x600@60 took from glide @@ -377,7 +378,11 @@ static void sstfb_clear_screen(struct fb_info *info) * sstfb_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 + * + * Limit to the abilities of a single chip as SLI is not supported + * by this driver. */ + static int sstfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) { @@ -390,7 +395,7 @@ static int sstfb_check_var(struct fb_var_screeninfo *var, unsigned int freq; if (sst_calc_pll(PICOS2KHZ(var->pixclock), &freq, &par->pll)) { - eprintk("Pixclock at %ld KHZ out of range\n", + printk(KERN_ERR "sstfb: Pixclock at %ld KHZ out of range\n", PICOS2KHZ(var->pixclock)); return -EINVAL; } @@ -409,27 +414,15 @@ static int sstfb_check_var(struct fb_var_screeninfo *var, case 0 ... 16 : var->bits_per_pixel = 16; break; -#ifdef EN_24_32_BPP - case 17 ... 24 : - var->bits_per_pixel = 24; - break; - case 25 ... 32 : - var->bits_per_pixel = 32; - break; -#endif default : - eprintk("Unsupported bpp %d\n", var->bits_per_pixel); + printk(KERN_ERR "sstfb: Unsupported bpp %d\n", var->bits_per_pixel); return -EINVAL; } /* validity tests */ - if ((var->xres <= 1) || (yDim <= 0 ) - || (var->hsync_len <= 1) - || (hSyncOff <= 1) - || (var->left_margin <= 2) - || (vSyncOn <= 0) - || (vSyncOff <= 0) - || (vBackPorch <= 0)) { + if (var->xres <= 1 || yDim <= 0 || var->hsync_len <= 1 || + hSyncOff <= 1 || var->left_margin <= 2 || vSyncOn <= 0 || + vSyncOff <= 0 || vBackPorch <= 0) { return -EINVAL; } @@ -437,21 +430,17 @@ static int sstfb_check_var(struct fb_var_screeninfo *var, /* Voodoo 2 limits */ tiles_in_X = (var->xres + 63 ) / 64 * 2; - if (((var->xres - 1) >= POW2(11)) || (yDim >= POW2(11))) { - eprintk("Unsupported resolution %dx%d\n", + if (var->xres > POW2(11) || yDim >= POW2(11)) { + printk(KERN_ERR "sstfb: Unsupported resolution %dx%d\n", var->xres, var->yres); return -EINVAL; } - if (((var->hsync_len-1) >= POW2(9)) - || ((hSyncOff-1) >= POW2(11)) - || ((var->left_margin - 2) >= POW2(9)) - || (vSyncOn >= POW2(13)) - || (vSyncOff >= POW2(13)) - || (vBackPorch >= POW2(9)) - || (tiles_in_X >= POW2(6)) - || (tiles_in_X <= 0)) { - eprintk("Unsupported Timings\n"); + if (var->hsync_len > POW2(9) || hSyncOff > POW2(11) || + var->left_margin - 2 >= POW2(9) || vSyncOn >= POW2(13) || + vSyncOff >= POW2(13) || vBackPorch >= POW2(9) || + tiles_in_X >= POW2(6) || tiles_in_X <= 0) { + printk(KERN_ERR "sstfb: Unsupported timings\n"); return -EINVAL; } } else { @@ -459,24 +448,20 @@ static int sstfb_check_var(struct fb_var_screeninfo *var, tiles_in_X = (var->xres + 63 ) / 64; if (var->vmode) { - eprintk("Interlace/Doublescan not supported %#x\n", + printk(KERN_ERR "sstfb: Interlace/doublescan not supported %#x\n", var->vmode); return -EINVAL; } - if (((var->xres - 1) >= POW2(10)) || (var->yres >= POW2(10))) { - eprintk("Unsupported resolution %dx%d\n", + if (var->xres > POW2(10) || var->yres >= POW2(10)) { + printk(KERN_ERR "sstfb: Unsupported resolution %dx%d\n", var->xres, var->yres); return -EINVAL; } - if (((var->hsync_len - 1) >= POW2(8)) - || ((hSyncOff-1) >= POW2(10)) - || ((var->left_margin - 2) >= POW2(8)) - || (vSyncOn >= POW2(12)) - || (vSyncOff >= POW2(12)) - || (vBackPorch >= POW2(8)) - || (tiles_in_X >= POW2(4)) - || (tiles_in_X <= 0)) { - eprintk("Unsupported Timings\n"); + if (var->hsync_len > POW2(8) || hSyncOff - 1 > POW2(10) || + var->left_margin - 2 >= POW2(8) || vSyncOn >= POW2(12) || + vSyncOff >= POW2(12) || vBackPorch >= POW2(8) || + tiles_in_X >= POW2(4) || tiles_in_X <= 0) { + printk(KERN_ERR "sstfb: Unsupported timings\n"); return -EINVAL; } } @@ -486,8 +471,8 @@ static int sstfb_check_var(struct fb_var_screeninfo *var, real_length = tiles_in_X * (IS_VOODOO2(par) ? 32 : 64 ) * ((var->bits_per_pixel == 16) ? 2 : 4); - if ((real_length * yDim) > info->fix.smem_len) { - eprintk("Not enough video memory\n"); + if (real_length * yDim > info->fix.smem_len) { + printk(KERN_ERR "sstfb: Not enough video memory\n"); return -ENOMEM; } @@ -515,20 +500,6 @@ static int sstfb_check_var(struct fb_var_screeninfo *var, var->blue.offset = 0; var->transp.offset = 0; break; -#ifdef EN_24_32_BPP - case 24: /* RGB 888 LfbMode 4 */ - case 32: /* ARGB 8888 LfbMode 5 */ - var->red.length = 8; - var->green.length = 8; - var->blue.length = 8; - var->transp.length = 0; - - var->red.offset = 16; - var->green.offset = 8; - var->blue.offset = 0; - var->transp.offset = 0; /* in 24bpp we fake a 32 bpp mode */ - break; -#endif default: return -EINVAL; } @@ -653,13 +624,6 @@ static int sstfb_set_par(struct fb_info *info) case 16: fbiinit1 |= SEL_SOURCE_VCLK_2X_SEL; break; -#ifdef EN_24_32_BPP - case 24: - case 32: - /* sst_set_bits(FBIINIT1, SEL_SOURCE_VCLK_2X_DIV2 | EN_24BPP);*/ - fbiinit1 |= SEL_SOURCE_VCLK_2X_SEL | EN_24BPP; - break; -#endif default: return -EINVAL; } @@ -690,14 +654,6 @@ static int sstfb_set_par(struct fb_info *info) case 16: lfbmode = LFB_565; break; -#ifdef EN_24_32_BPP - case 24: - lfbmode = LFB_888; - break; - case 32: - lfbmode = LFB_8888; - break; -#endif default: return -EINVAL; } @@ -789,8 +745,7 @@ static int sstfb_ioctl(struct fb_info *info, u_int cmd, u_long arg) return -EFAULT; if (val > info->fix.smem_len) val = info->fix.smem_len; - printk("filling %#x \n", val); - for (p=0 ; p<val; p+=2) + for (p = 0 ; p < val; p += 2) writew(p >> 6, info->screen_base + p); return 0; @@ -802,13 +757,10 @@ static int sstfb_ioctl(struct fb_info *info, u_int cmd, u_long arg) pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, tmp | PCI_EN_INIT_WR ); fbiinit0 = sst_read (FBIINIT0); - if (val) { + if (val) sst_write(FBIINIT0, fbiinit0 & ~EN_VGA_PASSTHROUGH); - iprintk("Disabling VGA pass-through\n"); - } else { + else sst_write(FBIINIT0, fbiinit0 | EN_VGA_PASSTHROUGH); - iprintk("Enabling VGA pass-through\n"); - } pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, tmp); return 0; @@ -884,9 +836,9 @@ static int __devinit sst_get_memsize(struct fb_info *info, __u32 *memsize) u8 __iomem *fbbase_virt = info->screen_base; /* force memsize */ - if ((mem >= 1 ) && (mem <= 4)) { + if (mem >= 1 && mem <= 4) { *memsize = (mem * 0x100000); - iprintk("supplied memsize: %#x\n", *memsize); + printk(KERN_INFO "supplied memsize: %#x\n", *memsize); return 1; } @@ -927,7 +879,7 @@ static int __devinit sst_detect_att(struct fb_info *info) struct sstfb_par *par = info->par; int i, mir, dir; - for (i=0; i<3; i++) { + for (i = 0; i < 3; i++) { sst_dac_write(DACREG_WMA, 0); /* backdoor */ sst_dac_read(DACREG_RMR); /* read 4 times RMR */ sst_dac_read(DACREG_RMR); @@ -940,7 +892,7 @@ static int __devinit sst_detect_att(struct fb_info *info) /*the 7th, device ID register */ dir = sst_dac_read(DACREG_RMR); f_ddprintk("mir: %#x, dir: %#x\n", mir, dir); - if ((mir == DACREG_MIR_ATT ) && (dir == DACREG_DIR_ATT)) { + if (mir == DACREG_MIR_ATT && dir == DACREG_DIR_ATT) { return 1; } } @@ -1134,12 +1086,6 @@ static void sst_set_vidmod_att_ti(struct fb_info *info, const int bpp) case 16: sst_dac_write(DACREG_RMR, (cr0 & 0x0f) | DACREG_CR0_16BPP); break; -#ifdef EN_24_32_BPP - case 24: - case 32: - sst_dac_write(DACREG_RMR, (cr0 & 0x0f) | DACREG_CR0_24BPP); - break; -#endif default: dprintk("%s: bad depth '%u'\n", __FUNCTION__, bpp); break; @@ -1154,12 +1100,6 @@ static void sst_set_vidmod_ics(struct fb_info *info, const int bpp) case 16: sst_dac_write(DACREG_ICS_CMD, DACREG_ICS_CMD_16BPP); break; -#ifdef EN_24_32_BPP - case 24: - case 32: - sst_dac_write(DACREG_ICS_CMD, DACREG_ICS_CMD_24BPP); - break; -#endif default: dprintk("%s: bad depth '%u'\n", __FUNCTION__, bpp); break; @@ -1250,7 +1190,7 @@ static int __devinit sst_init(struct fb_info *info, struct sstfb_par *par) PCI_EN_INIT_WR | PCI_REMAP_DAC ); /* detect dac type */ if (!sst_detect_dactype(info, par)) { - eprintk("Unknown dac type\n"); + printk(KERN_ERR "sstfb: unknown dac type.\n"); //FIXME watch it: we are not in a safe state, bad bad bad. return 0; } @@ -1258,10 +1198,10 @@ static int __devinit sst_init(struct fb_info *info, struct sstfb_par *par) /* set graphic clock */ par->gfx_clock = spec->default_gfx_clock; if ((gfxclk >10 ) && (gfxclk < spec->max_gfxclk)) { - iprintk("Using supplied graphic freq : %dMHz\n", gfxclk); + printk(KERN_INFO "sstfb: Using supplied graphic freq : %dMHz\n", gfxclk); par->gfx_clock = gfxclk *1000; } else if (gfxclk) { - wprintk ("%dMhz is way out of spec! Using default\n", gfxclk); + printk(KERN_WARNING "sstfb: %dMhz is way out of spec! Using default\n", gfxclk); } sst_calc_pll(par->gfx_clock, &Fout, &gfx_timings); @@ -1396,7 +1336,7 @@ static int __devinit sstfb_probe(struct pci_dev *pdev, /* Enable device in PCI config. */ if ((err=pci_enable_device(pdev))) { - eprintk("cannot enable device\n"); + printk(KERN_ERR "cannot enable device\n"); return err; } @@ -1422,39 +1362,39 @@ static int __devinit sstfb_probe(struct pci_dev *pdev, fix->smem_start = fix->mmio_start + 0x400000; if (!request_mem_region(fix->mmio_start, fix->mmio_len, "sstfb MMIO")) { - eprintk("cannot reserve mmio memory\n"); + printk(KERN_ERR "sstfb: cannot reserve mmio memory\n"); goto fail_mmio_mem; } if (!request_mem_region(fix->smem_start, 0x400000,"sstfb FB")) { - eprintk("cannot reserve fb memory\n"); + printk(KERN_ERR "sstfb: cannot reserve fb memory\n"); goto fail_fb_mem; } par->mmio_vbase = ioremap_nocache(fix->mmio_start, fix->mmio_len); if (!par->mmio_vbase) { - eprintk("cannot remap register area %#lx\n", + printk(KERN_ERR "sstfb: cannot remap register area %#lx\n", fix->mmio_start); goto fail_mmio_remap; } info->screen_base = ioremap_nocache(fix->smem_start, 0x400000); if (!info->screen_base) { - eprintk("cannot remap framebuffer %#lx\n", + printk(KERN_ERR "sstfb: cannot remap framebuffer %#lx\n", fix->smem_start); goto fail_fb_remap; } if (!sst_init(info, par)) { - eprintk("Init failed\n"); + printk(KERN_ERR "sstfb: Init failed\n"); goto fail; } sst_get_memsize(info, &fix->smem_len); strlcpy(fix->id, spec->name, sizeof(fix->id)); - iprintk("%s (revision %d) with %s dac\n", + printk(KERN_INFO "%s (revision %d) with %s dac\n", fix->id, par->revision, par->dac_sw.name); - iprintk("framebuffer at %#lx, mapped to 0x%p, size %dMB\n", + printk(KERN_INFO "framebuffer at %#lx, mapped to 0x%p, size %dMB\n", fix->smem_start, info->screen_base, fix->smem_len >> 20); @@ -1471,24 +1411,25 @@ static int __devinit sstfb_probe(struct pci_dev *pdev, fix->accel = FB_ACCEL_NONE; /* FIXME */ /* * According to the specs, the linelength must be of 1024 *pixels* - * and the 24bpp mode is in fact a 32 bpp mode. + * and the 24bpp mode is in fact a 32 bpp mode (and both are in + * fact dithered to 16bit). */ fix->line_length = 2048; /* default value, for 24 or 32bit: 4096 */ if ( mode_option && fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 16)) { - eprintk("can't set supplied video mode. Using default\n"); + printk(KERN_ERR "sstfb: can't set supplied video mode. Using default\n"); info->var = sstfb_default; } else info->var = sstfb_default; if (sstfb_check_var(&info->var, info)) { - eprintk("invalid default video mode.\n"); + printk(KERN_ERR "sstfb: invalid default video mode.\n"); goto fail; } if (sstfb_set_par(info)) { - eprintk("can't set default video mode.\n"); + printk(KERN_ERR "sstfb: can't set default video mode.\n"); goto fail; } @@ -1497,7 +1438,7 @@ static int __devinit sstfb_probe(struct pci_dev *pdev, /* register fb */ info->device = &pdev->dev; if (register_framebuffer(info) < 0) { - eprintk("can't register framebuffer.\n"); + printk(KERN_ERR "sstfb: can't register framebuffer.\n"); goto fail; } @@ -1711,4 +1652,3 @@ module_param(gfxclk, int, 0); MODULE_PARM_DESC(gfxclk, "Force graphic chip frequency in MHz. DANGEROUS. (default=auto)"); module_param(slowpci, bool, 0); MODULE_PARM_DESC(slowpci, "Uses slow PCI settings (0 or 1) (default=0)"); - |