[PATCH] sstfb: add sysfs interface
Modify the sstfb (Voodoo1/2) driver: - fix a memleak when removing the sstfb module - fix sstfb to use the fbdev default videomode database - add module option "mode_option" to set initial screen mode - add sysfs-interface to turn VGA-passthrough on/off via /sys/class/graphics/fbX/vgapass - remove old debug functions from ioctl interface Signed-off-by: Helge Deller <deller@gmx.de> Acked-By: James Simmons <jsimmons@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>hifive-unleashed-5.1
Helge Deller
Linus Torvalds
parent
3161986224
commit
0743b86800
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@ -21,6 +21,11 @@
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* Remove never finished and bogus 24/32bit support
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* Clean up macro abuse
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* Minor tidying for format.
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* 12/2006 Helge Deller <deller@gmx.de>
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* add /sys/class/graphics/fbX/vgapass sysfs-interface
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* add module option "mode_option" to set initial screen mode
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* use fbdev default videomode database
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* remove debug functions from ioctl
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*/
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/*
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@ -65,19 +70,10 @@
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*
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* sstfb specific ioctls:
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* toggle vga (0x46db) : toggle vga_pass_through
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* fill fb (0x46dc) : fills fb
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* test disp (0x46de) : draws a test image
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*/
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#undef SST_DEBUG
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/*
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Default video mode .
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0 800x600@60 took from glide
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1 640x480@75 took from glide
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2 1024x768@76 std fb.mode
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3 640x480@60 glide default */
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#define DEFAULT_MODE 3
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/*
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* Includes
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@ -92,20 +88,24 @@
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <asm/io.h>
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#include <asm/ioctl.h>
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#include <asm/uaccess.h>
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#include <video/sstfb.h>
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/* initialized by setup */
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static int vgapass; /* enable Vga passthrough cable */
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static int vgapass; /* enable VGA passthrough cable */
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static int mem; /* mem size in MB, 0 = autodetect */
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static int clipping = 1; /* use clipping (slower, safer) */
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static int gfxclk; /* force FBI freq in Mhz . Dangerous */
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static int slowpci; /* slow PCI settings */
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static char *mode_option __devinitdata;
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/*
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Possible default video modes: 800x600@60, 640x480@75, 1024x768@76, 640x480@60
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*/
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#define DEFAULT_VIDEO_MODE "640x480@60"
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static char *mode_option __devinitdata = DEFAULT_VIDEO_MODE;
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enum {
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ID_VOODOO1 = 0,
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@ -119,48 +119,11 @@ static struct sst_spec voodoo_spec[] __devinitdata = {
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{ .name = "Voodoo2", .default_gfx_clock = 75000, .max_gfxclk = 85 },
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};
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static struct fb_var_screeninfo sstfb_default =
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#if ( DEFAULT_MODE == 0 )
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{ /* 800x600@60, 16 bpp .borowed from glide/sst1/include/sst1init.h */
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800, 600, 800, 600, 0, 0, 16, 0,
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{11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
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0, 0, -1, -1, 0,
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25000, 86, 41, 23, 1, 127, 4,
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0, FB_VMODE_NONINTERLACED };
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#elif ( DEFAULT_MODE == 1 )
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{/* 640x480@75, 16 bpp .borowed from glide/sst1/include/sst1init.h */
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640, 480, 640, 480, 0, 0, 16, 0,
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{11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
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0, 0, -1, -1, 0,
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31746, 118, 17, 16, 1, 63, 3,
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0, FB_VMODE_NONINTERLACED };
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#elif ( DEFAULT_MODE == 2 )
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{ /* 1024x768@76 took from my /etc/fb.modes */
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1024, 768, 1024, 768,0, 0, 16,0,
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{11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
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0, 0, -1, -1, 0,
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11764, 208, 8, 36, 16, 120, 3 ,
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0, FB_VMODE_NONINTERLACED };
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#elif ( DEFAULT_MODE == 3 )
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{ /* 640x480@60 , 16bpp glide default ?*/
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640, 480, 640, 480, 0, 0, 16, 0,
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{11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
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0, 0, -1, -1, 0,
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39721 , 38, 26 , 25 ,18 , 96 ,2,
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0, FB_VMODE_NONINTERLACED };
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#elif
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#error "Invalid DEFAULT_MODE value !"
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#endif
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/*
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* debug functions
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*/
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static void sstfb_drawdebugimage(struct fb_info *info);
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static int sstfb_dump_regs(struct fb_info *info);
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#if (SST_DEBUG_REG > 0)
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static void sst_dbg_print_read_reg(u32 reg, u32 val) {
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const char *regname;
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@ -726,51 +689,77 @@ static int sstfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
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return 0;
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}
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static int sstfb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
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static void sstfb_setvgapass( struct fb_info *info, int enable )
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{
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struct sstfb_par *par = info->par;
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struct pci_dev *sst_dev = par->dev;
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u32 fbiinit0, tmp, val;
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u_long p;
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u32 fbiinit0, tmp;
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enable = enable ? 1:0;
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if (par->vgapass == enable)
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return;
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par->vgapass = enable;
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pci_read_config_dword(sst_dev, PCI_INIT_ENABLE, &tmp);
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pci_write_config_dword(sst_dev, PCI_INIT_ENABLE,
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tmp | PCI_EN_INIT_WR );
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fbiinit0 = sst_read (FBIINIT0);
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if (par->vgapass) {
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sst_write(FBIINIT0, fbiinit0 & ~DIS_VGA_PASSTHROUGH);
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printk(KERN_INFO "fb%d: Enabling VGA pass-through\n", info->node );
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} else {
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sst_write(FBIINIT0, fbiinit0 | DIS_VGA_PASSTHROUGH);
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printk(KERN_INFO "fb%d: Disabling VGA pass-through\n", info->node );
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}
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pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, tmp);
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}
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static ssize_t store_vgapass(struct device *device, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct fb_info *info = dev_get_drvdata(device);
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char ** last = NULL;
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int val;
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val = simple_strtoul(buf, last, 0);
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sstfb_setvgapass(info, val);
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return count;
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}
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static ssize_t show_vgapass(struct device *device, struct device_attribute *attr,
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char *buf)
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{
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struct fb_info *info = dev_get_drvdata(device);
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struct sstfb_par *par = info->par;
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return snprintf(buf, PAGE_SIZE, "%d\n", par->vgapass);
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}
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static struct device_attribute device_attrs[] = {
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__ATTR(vgapass, S_IRUGO|S_IWUSR, show_vgapass, store_vgapass)
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};
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static int sstfb_ioctl(struct fb_info *info, unsigned int cmd,
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unsigned long arg)
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{
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struct sstfb_par *par;
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u32 val;
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switch (cmd) {
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/* dump current FBIINIT values to system log */
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case _IO('F', 0xdb): /* 0x46db */
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return sstfb_dump_regs(info);
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/* fills lfb with #arg pixels */
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case _IOW('F', 0xdc, u32): /* 0x46dc */
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/* set/get VGA pass_through mode */
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case SSTFB_SET_VGAPASS:
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if (copy_from_user(&val, (void __user *)arg, sizeof(val)))
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return -EFAULT;
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if (val > info->fix.smem_len)
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val = info->fix.smem_len;
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for (p = 0 ; p < val; p += 2)
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writew(p >> 6, info->screen_base + p);
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sstfb_setvgapass(info, val);
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return 0;
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/* change VGA pass_through mode */
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case _IOW('F', 0xdd, u32): /* 0x46dd */
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if (copy_from_user(&val, (void __user *)arg, sizeof(val)))
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case SSTFB_GET_VGAPASS:
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par = info->par;
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val = par->vgapass;
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if (copy_to_user((void __user *)arg, &val, sizeof(val)))
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return -EFAULT;
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pci_read_config_dword(sst_dev, PCI_INIT_ENABLE, &tmp);
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pci_write_config_dword(sst_dev, PCI_INIT_ENABLE,
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tmp | PCI_EN_INIT_WR );
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fbiinit0 = sst_read (FBIINIT0);
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if (val)
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sst_write(FBIINIT0, fbiinit0 & ~EN_VGA_PASSTHROUGH);
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else
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sst_write(FBIINIT0, fbiinit0 | EN_VGA_PASSTHROUGH);
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pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, tmp);
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return 0;
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/* draw test image */
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case _IO('F', 0xde): /* 0x46de */
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f_dprintk("test color display at %d bpp\n",
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info->var.bits_per_pixel);
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sstfb_drawdebugimage(info);
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return 0;
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}
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return -EINVAL;
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}
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@ -804,6 +793,7 @@ static void sstfb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
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/*
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* FillRect 2D command (solidfill or invert (via ROP_XOR)) - Voodoo2 only
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*/
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#if 0
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static void sstfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
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{
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struct sstfb_par *par = info->par;
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@ -825,6 +815,7 @@ static void sstfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
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| (BLT_16BPP_FMT << 3) /* | BIT(14) */ | BIT(15) | BIT(16) );
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sst_wait_idle();
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}
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#endif
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@ -1156,6 +1147,7 @@ static int __devinit sst_init(struct fb_info *info, struct sstfb_par *par)
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struct pll_timing gfx_timings;
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struct sst_spec *spec;
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int Fout;
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int gfx_clock;
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spec = &voodoo_spec[par->type];
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f_ddprintk(" fbiinit0 fbiinit1 fbiinit2 fbiinit3 fbiinit4 "
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@ -1196,15 +1188,15 @@ static int __devinit sst_init(struct fb_info *info, struct sstfb_par *par)
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}
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/* set graphic clock */
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par->gfx_clock = spec->default_gfx_clock;
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gfx_clock = spec->default_gfx_clock;
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if ((gfxclk >10 ) && (gfxclk < spec->max_gfxclk)) {
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printk(KERN_INFO "sstfb: Using supplied graphic freq : %dMHz\n", gfxclk);
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par->gfx_clock = gfxclk *1000;
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gfx_clock = gfxclk *1000;
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} else if (gfxclk) {
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printk(KERN_WARNING "sstfb: %dMhz is way out of spec! Using default\n", gfxclk);
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}
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sst_calc_pll(par->gfx_clock, &Fout, &gfx_timings);
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sst_calc_pll(gfx_clock, &Fout, &gfx_timings);
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par->dac_sw.set_pll(info, &gfx_timings, GFX_CLOCK);
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/* disable fbiinit remap */
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@ -1215,10 +1207,11 @@ static int __devinit sst_init(struct fb_info *info, struct sstfb_par *par)
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fbiinit0 = FBIINIT0_DEFAULT;
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fbiinit1 = FBIINIT1_DEFAULT;
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fbiinit4 = FBIINIT4_DEFAULT;
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if (vgapass)
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fbiinit0 &= ~EN_VGA_PASSTHROUGH;
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par->vgapass = vgapass;
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if (par->vgapass)
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fbiinit0 &= ~DIS_VGA_PASSTHROUGH;
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else
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fbiinit0 |= EN_VGA_PASSTHROUGH;
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fbiinit0 |= DIS_VGA_PASSTHROUGH;
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if (slowpci) {
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fbiinit1 |= SLOW_PCI_WRITES;
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fbiinit4 |= SLOW_PCI_READS;
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@ -1267,7 +1260,7 @@ static void __devexit sst_shutdown(struct fb_info *info)
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/* TODO maybe shutdown the dac, vrefresh and so on... */
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pci_write_config_dword(dev, PCI_INIT_ENABLE,
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PCI_EN_INIT_WR);
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sst_unset_bits(FBIINIT0, FBI_RESET | FIFO_RESET | EN_VGA_PASSTHROUGH);
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sst_unset_bits(FBIINIT0, FBI_RESET | FIFO_RESET | DIS_VGA_PASSTHROUGH);
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pci_write_config_dword(dev, PCI_VCLK_DISABLE,0);
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/* maybe keep fbiinit* and PCI_INIT_enable in the fb_info struct
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* from start ? */
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@ -1278,8 +1271,7 @@ static void __devexit sst_shutdown(struct fb_info *info)
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/*
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* Interface to the world
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*/
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#ifndef MODULE
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static int __init sstfb_setup(char *options)
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static int __devinit sstfb_setup(char *options)
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{
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char *this_opt;
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@ -1312,7 +1304,7 @@ static int __init sstfb_setup(char *options)
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}
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return 0;
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}
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#endif
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static struct fb_ops sstfb_ops = {
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.owner = THIS_MODULE,
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@ -1416,15 +1408,10 @@ static int __devinit sstfb_probe(struct pci_dev *pdev,
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*/
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fix->line_length = 2048; /* default value, for 24 or 32bit: 4096 */
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if ( mode_option &&
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fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 16)) {
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printk(KERN_ERR "sstfb: can't set supplied video mode. Using default\n");
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info->var = sstfb_default;
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} else
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info->var = sstfb_default;
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fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 16);
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if (sstfb_check_var(&info->var, info)) {
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printk(KERN_ERR "sstfb: invalid default video mode.\n");
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printk(KERN_ERR "sstfb: invalid video mode.\n");
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goto fail;
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}
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@ -1442,10 +1429,11 @@ static int __devinit sstfb_probe(struct pci_dev *pdev,
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goto fail;
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}
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if (1) /* set to 0 to see an initial bitmap instead */
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sstfb_clear_screen(info);
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else
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sstfb_drawdebugimage(info);
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sstfb_clear_screen(info);
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if (device_create_file(info->dev, &device_attrs[0]))
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printk(KERN_WARNING "sstfb: can't create sysfs entry.\n");
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printk(KERN_INFO "fb%d: %s frame buffer device at 0x%p\n",
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info->node, fix->id, info->screen_base);
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@ -1453,6 +1441,7 @@ static int __devinit sstfb_probe(struct pci_dev *pdev,
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return 0;
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fail:
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fb_dealloc_cmap(&info->cmap);
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iounmap(info->screen_base);
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fail_fb_remap:
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iounmap(par->mmio_vbase);
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@ -1473,21 +1462,23 @@ static void __devexit sstfb_remove(struct pci_dev *pdev)
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info = pci_get_drvdata(pdev);
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par = info->par;
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device_remove_file(info->dev, &device_attrs[0]);
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sst_shutdown(info);
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unregister_framebuffer(info);
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iounmap(info->screen_base);
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iounmap(par->mmio_vbase);
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release_mem_region(info->fix.smem_start, 0x400000);
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release_mem_region(info->fix.mmio_start, info->fix.mmio_len);
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fb_dealloc_cmap(&info->cmap);
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unregister_framebuffer(info);
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framebuffer_release(info);
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}
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static struct pci_device_id sstfb_id_tbl[] = {
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{ PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_VOODOO,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, ID_VOODOO1 },
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{ PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_VOODOO2,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, ID_VOODOO2 },
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static const struct pci_device_id sstfb_id_tbl[] = {
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{ PCI_DEVICE(PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_VOODOO ),
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.driver_data = ID_VOODOO1, },
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{ PCI_DEVICE(PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_VOODOO2),
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.driver_data = ID_VOODOO2, },
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{ 0 },
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};
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@ -1501,142 +1492,23 @@ static struct pci_driver sstfb_driver = {
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static int __devinit sstfb_init(void)
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{
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#ifndef MODULE
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char *option = NULL;
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if (fb_get_options("sstfb", &option))
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return -ENODEV;
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sstfb_setup(option);
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#endif
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return pci_register_driver(&sstfb_driver);
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}
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#ifdef MODULE
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static void __devexit sstfb_exit(void)
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{
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pci_unregister_driver(&sstfb_driver);
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}
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#endif
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/*
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* testing and debugging functions
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*/
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|
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static int sstfb_dump_regs(struct fb_info *info)
|
||||
{
|
||||
#ifdef SST_DEBUG
|
||||
static struct { u32 reg ; const char *reg_name;} pci_regs[] = {
|
||||
{ PCI_INIT_ENABLE, "initenable"},
|
||||
{ PCI_VCLK_ENABLE, "enable vclk"},
|
||||
{ PCI_VCLK_DISABLE, "disable vclk"},
|
||||
};
|
||||
|
||||
static struct { u32 reg ; const char *reg_name;} sst_regs[] = {
|
||||
{FBIINIT0,"fbiinit0"},
|
||||
{FBIINIT1,"fbiinit1"},
|
||||
{FBIINIT2,"fbiinit2"},
|
||||
{FBIINIT3,"fbiinit3"},
|
||||
{FBIINIT4,"fbiinit4"},
|
||||
{FBIINIT5,"fbiinit5"},
|
||||
{FBIINIT6,"fbiinit6"},
|
||||
{FBIINIT7,"fbiinit7"},
|
||||
{LFBMODE,"lfbmode"},
|
||||
{FBZMODE,"fbzmode"},
|
||||
};
|
||||
|
||||
const int pci_s = ARRAY_SIZE(pci_regs);
|
||||
const int sst_s = ARRAY_SIZE(sst_regs);
|
||||
struct sstfb_par *par = info->par;
|
||||
struct pci_dev *dev = par->dev;
|
||||
u32 pci_res[pci_s];
|
||||
u32 sst_res[sst_s];
|
||||
int i;
|
||||
|
||||
for (i=0; i<pci_s; i++) {
|
||||
pci_read_config_dword(dev, pci_regs[i].reg, &pci_res[i]);
|
||||
}
|
||||
for (i=0; i<sst_s; i++) {
|
||||
sst_res[i] = sst_read(sst_regs[i].reg);
|
||||
}
|
||||
|
||||
dprintk("hardware register dump:\n");
|
||||
for (i=0; i<pci_s; i++) {
|
||||
dprintk("%s %0#10x\n", pci_regs[i].reg_name, pci_res[i]);
|
||||
}
|
||||
for (i=0; i<sst_s; i++) {
|
||||
dprintk("%s %0#10x\n", sst_regs[i].reg_name, sst_res[i]);
|
||||
}
|
||||
return 0;
|
||||
#else
|
||||
return -EINVAL;
|
||||
#endif
|
||||
}
|
||||
|
||||
static void sstfb_fillrect_softw( struct fb_info *info, const struct fb_fillrect *rect)
|
||||
{
|
||||
u8 __iomem *fbbase_virt = info->screen_base;
|
||||
int x, y, w = info->var.bits_per_pixel == 16 ? 2 : 4;
|
||||
u32 color = rect->color, height = rect->height;
|
||||
u8 __iomem *p;
|
||||
|
||||
if (w==2) color |= color<<16;
|
||||
for (y=rect->dy; height; y++, height--) {
|
||||
p = fbbase_virt + y*info->fix.line_length + rect->dx*w;
|
||||
x = rect->width;
|
||||
if (w==2) x>>=1;
|
||||
while (x) {
|
||||
writel(color, p);
|
||||
p += 4;
|
||||
x--;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void sstfb_drawrect_XY( struct fb_info *info, int x, int y,
|
||||
int w, int h, int color, int hwfunc)
|
||||
{
|
||||
struct fb_fillrect rect;
|
||||
rect.dx = x;
|
||||
rect.dy = y;
|
||||
rect.height = h;
|
||||
rect.width = w;
|
||||
rect.color = color;
|
||||
rect.rop = ROP_COPY;
|
||||
if (hwfunc)
|
||||
sstfb_fillrect(info, &rect);
|
||||
else
|
||||
sstfb_fillrect_softw(info, &rect);
|
||||
}
|
||||
|
||||
/* print some squares on the fb */
|
||||
static void sstfb_drawdebugimage(struct fb_info *info)
|
||||
{
|
||||
static int idx;
|
||||
|
||||
/* clear screen */
|
||||
sstfb_clear_screen(info);
|
||||
|
||||
idx = (idx+1) & 1;
|
||||
|
||||
/* white rect */
|
||||
sstfb_drawrect_XY(info, 0, 0, 50, 50, 0xffff, idx);
|
||||
|
||||
/* blue rect */
|
||||
sstfb_drawrect_XY(info, 50, 50, 50, 50, 0x001f, idx);
|
||||
|
||||
/* green rect */
|
||||
sstfb_drawrect_XY(info, 100, 100, 80, 80, 0x07e0, idx);
|
||||
|
||||
/* red rect */
|
||||
sstfb_drawrect_XY(info, 250, 250, 120, 100, 0xf800, idx);
|
||||
}
|
||||
|
||||
module_init(sstfb_init);
|
||||
|
||||
#ifdef MODULE
|
||||
module_exit(sstfb_exit);
|
||||
#endif
|
||||
|
||||
MODULE_AUTHOR("(c) 2000,2002 Ghozlane Toumi <gtoumi@laposte.net>");
|
||||
MODULE_DESCRIPTION("FBDev driver for 3dfx Voodoo Graphics and Voodoo2 based video boards");
|
||||
|
|
@ -1652,3 +1524,6 @@ 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)");
|
||||
module_param(mode_option, charp, 0);
|
||||
MODULE_PARM_DESC(mode_option, "Initial video mode (default=" DEFAULT_VIDEO_MODE ")");
|
||||
|
||||
|
|
|
|||
|
|
@ -119,7 +119,7 @@
|
|||
#define BACKPORCH 0x0208
|
||||
#define VIDEODIMENSIONS 0x020c
|
||||
#define FBIINIT0 0x0210 /* misc+fifo controls */
|
||||
# define EN_VGA_PASSTHROUGH BIT(0)
|
||||
# define DIS_VGA_PASSTHROUGH BIT(0)
|
||||
# define FBI_RESET BIT(1)
|
||||
# define FIFO_RESET BIT(2)
|
||||
#define FBIINIT1 0x0214 /* PCI + video controls */
|
||||
|
|
@ -251,7 +251,7 @@
|
|||
# define DACREG_ICS_CLK1_A 0 /* bit4 */
|
||||
|
||||
/* sst default init registers */
|
||||
#define FBIINIT0_DEFAULT EN_VGA_PASSTHROUGH
|
||||
#define FBIINIT0_DEFAULT DIS_VGA_PASSTHROUGH
|
||||
|
||||
#define FBIINIT1_DEFAULT \
|
||||
( \
|
||||
|
|
@ -296,6 +296,11 @@
|
|||
*
|
||||
*/
|
||||
|
||||
/* ioctl to enable/disable VGA passthrough */
|
||||
#define SSTFB_SET_VGAPASS _IOW('F', 0xdd, __u32)
|
||||
#define SSTFB_GET_VGAPASS _IOR('F', 0xdd, __u32)
|
||||
|
||||
|
||||
/* used to know witch clock to set */
|
||||
enum {
|
||||
VID_CLOCK=0,
|
||||
|
|
@ -317,7 +322,7 @@ struct pll_timing {
|
|||
};
|
||||
|
||||
struct dac_switch {
|
||||
char * name;
|
||||
const char *name;
|
||||
int (*detect) (struct fb_info *info);
|
||||
int (*set_pll) (struct fb_info *info, const struct pll_timing *t, const int clock);
|
||||
void (*set_vidmod) (struct fb_info *info, const int bpp);
|
||||
|
|
@ -345,7 +350,7 @@ struct sstfb_par {
|
|||
struct pci_dev *dev;
|
||||
int type;
|
||||
u8 revision;
|
||||
int gfx_clock; /* status */
|
||||
u8 vgapass; /* VGA pass through: 1=enabled, 0=disabled */
|
||||
};
|
||||
|
||||
#endif /* _SSTFB_H_ */
|
||||
|
|
|
|||
Loading…
Reference in New Issue