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https://github.com/adulau/aha.git
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[PATCH] savagefb: Driver updates
- Fallback to firmware EDID if chipset has no DDC/I2C support or if I2C probing failed - Add fb_blank hook - Fix savagefb_suspend/resume to enable driver to successfully suspend and resume from S3, memory or disk Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Antonino A. Daplas
Linus Torvalds
parent
5e518d7672
commit
13776711ce
3 changed files with 148 additions and 22 deletions
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@ -259,8 +259,9 @@ static u8 *savage_do_probe_i2c_edid(struct savagefb_i2c_chan *chan)
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return buf;
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}
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int savagefb_probe_i2c_connector(struct savagefb_par *par, u8 **out_edid)
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int savagefb_probe_i2c_connector(struct fb_info *info, u8 **out_edid)
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{
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struct savagefb_par *par = info->par;
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u8 *edid = NULL;
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int i;
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@ -270,12 +271,19 @@ int savagefb_probe_i2c_connector(struct savagefb_par *par, u8 **out_edid)
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if (edid)
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break;
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}
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if (!edid) {
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/* try to get from firmware */
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edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
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if (edid)
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memcpy(edid, fb_firmware_edid(info->device),
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EDID_LENGTH);
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}
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if (out_edid)
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*out_edid = edid;
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if (!edid)
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return 1;
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return 0;
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return (edid) ? 0 : 1;
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}
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MODULE_LICENSE("GPL");
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@ -60,6 +60,7 @@
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#define S3_SAVAGE_SERIES(chip) ((chip>=S3_SAVAGE3D) && (chip<=S3_SAVAGE2000))
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#define S3_MOBILE_TWISTER_SERIES(chip) ((chip==S3_TWISTER) || (chip == S3_PROSAVAGEDDR))
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/* Chip tags. These are used to group the adapters into
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* related families.
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@ -73,6 +74,8 @@ typedef enum {
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S3_PROSAVAGE,
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S3_SUPERSAVAGE,
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S3_SAVAGE2000,
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S3_PROSAVAGEDDR,
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S3_TWISTER,
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S3_LAST
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} savage_chipset;
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@ -128,6 +131,10 @@ typedef enum {
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#define BCI_CMD_SET_ROP(cmd, rop) ((cmd) |= ((rop & 0xFF) << 16))
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#define BCI_CMD_SEND_COLOR 0x00008000
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#define DISP_CRT 1
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#define DISP_LCD 2
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#define DISP_DFP 3
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struct xtimings {
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unsigned int Clock;
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unsigned int HDisplay;
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@ -166,6 +173,10 @@ struct savagefb_par {
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struct savagefb_i2c_chan chan;
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unsigned char *edid;
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u32 pseudo_palette[16];
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int pm_state;
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int display_type;
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int dvi;
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int crtonly;
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int dacSpeedBpp;
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int maxClock;
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int minClock;
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@ -338,7 +349,7 @@ do { \
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} \
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}
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extern int savagefb_probe_i2c_connector(struct savagefb_par *par,
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extern int savagefb_probe_i2c_connector(struct fb_info *info,
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u8 **out_edid);
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extern void savagefb_create_i2c_busses(struct fb_info *info);
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extern void savagefb_delete_i2c_busses(struct fb_info *info);
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@ -1400,6 +1400,58 @@ static int savagefb_pan_display (struct fb_var_screeninfo *var,
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return 0;
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}
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static int savagefb_blank(int blank, struct fb_info *info)
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{
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struct savagefb_par *par = info->par;
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u8 sr8 = 0, srd = 0;
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if (par->display_type == DISP_CRT) {
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vga_out8(0x3c4, 0x08);
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sr8 = vga_in8(0x3c5);
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sr8 |= 0x06;
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vga_out8(0x3c5, sr8);
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vga_out8(0x3c4, 0x0d);
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srd = vga_in8(0x3c5);
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srd &= 0x03;
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switch (blank) {
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case FB_BLANK_UNBLANK:
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case FB_BLANK_NORMAL:
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break;
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case FB_BLANK_VSYNC_SUSPEND:
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srd |= 0x10;
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break;
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case FB_BLANK_HSYNC_SUSPEND:
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srd |= 0x40;
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break;
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case FB_BLANK_POWERDOWN:
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srd |= 0x50;
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break;
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}
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vga_out8(0x3c4, 0x0d);
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vga_out8(0x3c5, srd);
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}
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if (par->display_type == DISP_LCD ||
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par->display_type == DISP_DFP) {
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switch(blank) {
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case FB_BLANK_UNBLANK:
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case FB_BLANK_NORMAL:
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vga_out8(0x3c4, 0x31); /* SR31 bit 4 - FP enable */
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vga_out8(0x3c5, vga_in8(0x3c5) | 0x10);
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break;
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case FB_BLANK_VSYNC_SUSPEND:
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case FB_BLANK_HSYNC_SUSPEND:
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case FB_BLANK_POWERDOWN:
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vga_out8(0x3c4, 0x31); /* SR31 bit 4 - FP enable */
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vga_out8(0x3c5, vga_in8(0x3c5) & ~0x10);
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break;
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}
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}
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return (blank == FB_BLANK_NORMAL) ? 1 : 0;
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}
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static struct fb_ops savagefb_ops = {
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.owner = THIS_MODULE,
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@ -1407,6 +1459,7 @@ static struct fb_ops savagefb_ops = {
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.fb_set_par = savagefb_set_par,
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.fb_setcolreg = savagefb_setcolreg,
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.fb_pan_display = savagefb_pan_display,
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.fb_blank = savagefb_blank,
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#if defined(CONFIG_FB_SAVAGE_ACCEL)
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.fb_fillrect = savagefb_fillrect,
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.fb_copyarea = savagefb_copyarea,
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@ -1583,8 +1636,7 @@ static int __devinit savage_init_hw (struct savagefb_par *par)
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static unsigned char RamSavage4[] = { 2, 4, 8, 12, 16, 32, 64, 32 };
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static unsigned char RamSavageMX[] = { 2, 8, 4, 16, 8, 16, 4, 16 };
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static unsigned char RamSavageNB[] = { 0, 2, 4, 8, 16, 32, 2, 2 };
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int videoRam, videoRambytes;
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int videoRam, videoRambytes, dvi;
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DBG("savage_init_hw");
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@ -1705,6 +1757,30 @@ static int __devinit savage_init_hw (struct savagefb_par *par)
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printk (KERN_INFO "savagefb: Detected current MCLK value of %d kHz\n",
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par->MCLK);
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/* check for DVI/flat panel */
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dvi = 0;
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if (par->chip == S3_SAVAGE4) {
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unsigned char sr30 = 0x00;
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vga_out8(0x3c4, 0x30);
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/* clear bit 1 */
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vga_out8(0x3c5, vga_in8(0x3c5) & ~0x02);
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sr30 = vga_in8(0x3c5);
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if (sr30 & 0x02 /*0x04 */) {
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dvi = 1;
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printk("savagefb: Digital Flat Panel Detected\n");
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}
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}
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if (S3_SAVAGE_MOBILE_SERIES(par->chip) ||
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(S3_MOBILE_TWISTER_SERIES(par->chip) && !par->crtonly))
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par->display_type = DISP_LCD;
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else if (dvi || (par->chip == S3_SAVAGE4 && par->dvi))
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par->display_type = DISP_DFP;
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else
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par->display_type = DISP_CRT;
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/* Check LCD panel parrmation */
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if (par->chip == S3_SAVAGE_MX) {
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@ -1759,7 +1835,8 @@ static int __devinit savage_init_hw (struct savagefb_par *par)
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par->SavagePanelWidth = panelX;
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par->SavagePanelHeight = panelY;
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}
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} else
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par->display_type = DISP_CRT;
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}
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savage_get_default_par (par);
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@ -1845,15 +1922,15 @@ static int __devinit savage_init_fb_info (struct fb_info *info,
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snprintf (info->fix.id, 16, "ProSavageKM");
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break;
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case FB_ACCEL_S3TWISTER_P:
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par->chip = S3_PROSAVAGE;
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par->chip = S3_TWISTER;
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snprintf (info->fix.id, 16, "TwisterP");
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break;
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case FB_ACCEL_S3TWISTER_K:
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par->chip = S3_PROSAVAGE;
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par->chip = S3_TWISTER;
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snprintf (info->fix.id, 16, "TwisterK");
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break;
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case FB_ACCEL_PROSAVAGE_DDR:
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par->chip = S3_PROSAVAGE;
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par->chip = S3_PROSAVAGEDDR;
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snprintf (info->fix.id, 16, "ProSavageDDR");
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break;
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case FB_ACCEL_PROSAVAGE_DDRK:
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@ -1959,7 +2036,8 @@ static int __devinit savagefb_probe (struct pci_dev* dev,
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INIT_LIST_HEAD(&info->modelist);
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#if defined(CONFIG_FB_SAVAGE_I2C)
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savagefb_create_i2c_busses(info);
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savagefb_probe_i2c_connector(par, &par->edid);
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savagefb_probe_i2c_connector(info, &par->edid);
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kfree(par->edid);
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fb_edid_to_monspecs(par->edid, &info->monspecs);
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fb_videomode_to_modelist(info->monspecs.modedb,
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info->monspecs.modedb_len,
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@ -2111,13 +2189,30 @@ static int savagefb_suspend (struct pci_dev* dev, pm_message_t state)
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DBG("savagefb_suspend");
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acquire_console_sem();
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fb_set_suspend(info, pci_choose_state(dev, state));
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savage_disable_mmio(par);
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release_console_sem();
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par->pm_state = state.event;
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/*
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* For PM_EVENT_FREEZE, do not power down so the console
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* can remain active.
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*/
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if (state.event == PM_EVENT_FREEZE) {
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dev->dev.power.power_state = state;
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return 0;
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}
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acquire_console_sem();
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fb_set_suspend(info, 1);
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if (info->fbops->fb_sync)
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info->fbops->fb_sync(info);
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savagefb_blank(FB_BLANK_POWERDOWN, info);
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savage_disable_mmio(par);
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pci_save_state(dev);
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pci_disable_device(dev);
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pci_set_power_state(dev, pci_choose_state(dev, state));
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release_console_sem();
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return 0;
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}
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@ -2127,22 +2222,34 @@ static int savagefb_resume (struct pci_dev* dev)
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struct fb_info *info =
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(struct fb_info *)pci_get_drvdata(dev);
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struct savagefb_par *par = (struct savagefb_par *)info->par;
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int cur_state = par->pm_state;
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DBG("savage_resume");
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pci_set_power_state(dev, 0);
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pci_restore_state(dev);
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if(pci_enable_device(dev))
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DBG("err");
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par->pm_state = PM_EVENT_ON;
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SavagePrintRegs();
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/*
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* The adapter was not powered down coming back from a
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* PM_EVENT_FREEZE.
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*/
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if (cur_state == PM_EVENT_FREEZE) {
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pci_set_power_state(dev, PCI_D0);
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return 0;
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}
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acquire_console_sem();
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pci_set_power_state(dev, PCI_D0);
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pci_restore_state(dev);
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if(pci_enable_device(dev))
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DBG("err");
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pci_set_master(dev);
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savage_enable_mmio(par);
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savage_init_hw(par);
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savagefb_set_par (info);
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savagefb_blank(FB_BLANK_UNBLANK, info);
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fb_set_suspend (info, 0);
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release_console_sem();
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