2 * Silicon Motion SM7XX frame buffer device
4 * Copyright (C) 2006 Silicon Motion Technology Corp.
5 * Authors: Ge Wang, gewang@siliconmotion.com
6 * Boyod boyod.yang@siliconmotion.com.cn
8 * Copyright (C) 2009 Lemote, Inc.
9 * Author: Wu Zhangjin, wuzhangjin@gmail.com
11 * Copyright (C) 2011 Igalia, S.L.
12 * Author: Javier M. Mellid <jmunhoz@igalia.com>
14 * This file is subject to the terms and conditions of the GNU General Public
15 * License. See the file COPYING in the main directory of this archive for
18 * Framebuffer driver for Silicon Motion SM710, SM712, SM721 and SM722 chips
23 #include <linux/pci.h>
24 #include <linux/init.h>
25 #include <linux/slab.h>
26 #include <linux/uaccess.h>
27 #include <linux/module.h>
28 #include <linux/console.h>
29 #include <linux/screen_info.h>
46 void __iomem *lfb; /* linear frame buffer */
47 void __iomem *dp_regs; /* drawing processor control regs */
48 void __iomem *vp_regs; /* video processor control regs */
49 void __iomem *cp_regs; /* capture processor control regs */
50 void __iomem *mmio; /* memory map IO port */
59 void __iomem *smtc_RegBaseAddress; /* Memory Map IO starting address */
61 static struct fb_var_screeninfo smtcfb_var = {
70 .activate = FB_ACTIVATE_NOW,
73 .vmode = FB_VMODE_NONINTERLACED,
75 .accel_flags = FB_ACCELF_TEXT,
78 static struct fb_fix_screeninfo smtcfb_fix = {
80 .type = FB_TYPE_PACKED_PIXELS,
81 .visual = FB_VISUAL_TRUECOLOR,
82 .line_length = 800 * 3,
83 .accel = FB_ACCEL_SMI_LYNX,
97 static struct vesa_mode vesa_mode_table[] = {
98 {"0x301", 640, 480, 8},
99 {"0x303", 800, 600, 8},
100 {"0x305", 1024, 768, 8},
101 {"0x307", 1280, 1024, 8},
103 {"0x311", 640, 480, 16},
104 {"0x314", 800, 600, 16},
105 {"0x317", 1024, 768, 16},
106 {"0x31A", 1280, 1024, 16},
108 {"0x312", 640, 480, 24},
109 {"0x315", 800, 600, 24},
110 {"0x318", 1024, 768, 24},
111 {"0x31B", 1280, 1024, 24},
114 struct screen_info smtc_scr_info;
116 /* process command line options, get vga parameter */
117 static int __init sm7xx_vga_setup(char *options)
121 if (!options || !*options)
124 smtc_scr_info.lfb_width = 0;
125 smtc_scr_info.lfb_height = 0;
126 smtc_scr_info.lfb_depth = 0;
128 pr_debug("sm7xx_vga_setup = %s\n", options);
130 for (i = 0; i < ARRAY_SIZE(vesa_mode_table); i++) {
131 if (strstr(options, vesa_mode_table[i].index)) {
132 smtc_scr_info.lfb_width = vesa_mode_table[i].lfb_width;
133 smtc_scr_info.lfb_height =
134 vesa_mode_table[i].lfb_height;
135 smtc_scr_info.lfb_depth = vesa_mode_table[i].lfb_depth;
142 __setup("vga=", sm7xx_vga_setup);
144 static void sm712_setpalette(int regno, unsigned red, unsigned green,
145 unsigned blue, struct fb_info *info)
147 /* set bit 5:4 = 01 (write LCD RAM only) */
148 smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x10);
150 smtc_mmiowb(regno, dac_reg);
151 smtc_mmiowb(red >> 10, dac_val);
152 smtc_mmiowb(green >> 10, dac_val);
153 smtc_mmiowb(blue >> 10, dac_val);
158 * convert a colour value into a field position
163 static inline unsigned int chan_to_field(unsigned int chan,
164 struct fb_bitfield *bf)
167 chan >>= 16 - bf->length;
168 return chan << bf->offset;
171 static int smtc_blank(int blank_mode, struct fb_info *info)
173 /* clear DPMS setting */
174 switch (blank_mode) {
175 case FB_BLANK_UNBLANK:
176 /* Screen On: HSync: On, VSync : On */
177 smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
178 smtc_seqw(0x6a, 0x16);
179 smtc_seqw(0x6b, 0x02);
180 smtc_seqw(0x21, (smtc_seqr(0x21) & 0x77));
181 smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
182 smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
183 smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
184 smtc_seqw(0x31, (smtc_seqr(0x31) | 0x03));
186 case FB_BLANK_NORMAL:
187 /* Screen Off: HSync: On, VSync : On Soft blank */
188 smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
189 smtc_seqw(0x6a, 0x16);
190 smtc_seqw(0x6b, 0x02);
191 smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
192 smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
193 smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
194 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
196 case FB_BLANK_VSYNC_SUSPEND:
197 /* Screen On: HSync: On, VSync : Off */
198 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
199 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
200 smtc_seqw(0x6a, 0x0c);
201 smtc_seqw(0x6b, 0x02);
202 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
203 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x20));
204 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20));
205 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
206 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
207 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
209 case FB_BLANK_HSYNC_SUSPEND:
210 /* Screen On: HSync: Off, VSync : On */
211 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
212 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
213 smtc_seqw(0x6a, 0x0c);
214 smtc_seqw(0x6b, 0x02);
215 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
216 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x10));
217 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
218 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
219 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
220 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
222 case FB_BLANK_POWERDOWN:
223 /* Screen On: HSync: Off, VSync : Off */
224 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
225 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
226 smtc_seqw(0x6a, 0x0c);
227 smtc_seqw(0x6b, 0x02);
228 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
229 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x30));
230 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
231 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
232 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
233 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
242 static int smtc_setcolreg(unsigned regno, unsigned red, unsigned green,
243 unsigned blue, unsigned trans, struct fb_info *info)
245 struct smtcfb_info *sfb;
253 switch (sfb->fb.fix.visual) {
254 case FB_VISUAL_DIRECTCOLOR:
255 case FB_VISUAL_TRUECOLOR:
257 * 16/32 bit true-colour, use pseudo-palette for 16 base color
260 if (sfb->fb.var.bits_per_pixel == 16) {
261 u32 *pal = sfb->fb.pseudo_palette;
263 val = chan_to_field(red, &sfb->fb.var.red);
264 val |= chan_to_field(green, &sfb->fb.var.green);
265 val |= chan_to_field(blue, &sfb->fb.var.blue);
268 ((red & 0xf800) >> 8) |
269 ((green & 0xe000) >> 13) |
270 ((green & 0x1c00) << 3) |
271 ((blue & 0xf800) >> 3);
276 u32 *pal = sfb->fb.pseudo_palette;
278 val = chan_to_field(red, &sfb->fb.var.red);
279 val |= chan_to_field(green, &sfb->fb.var.green);
280 val |= chan_to_field(blue, &sfb->fb.var.blue);
283 (val & 0xff00ff00 >> 8) |
284 (val & 0x00ff00ff << 8);
291 case FB_VISUAL_PSEUDOCOLOR:
292 /* color depth 8 bit */
293 sm712_setpalette(regno, red, green, blue, info);
297 return 1; /* unknown type */
304 static ssize_t smtcfb_read(struct fb_info *info, char __user *buf, size_t
307 unsigned long p = *ppos;
311 int c, i, cnt = 0, err = 0;
312 unsigned long total_size;
314 if (!info || !info->screen_base)
317 if (info->state != FBINFO_STATE_RUNNING)
320 total_size = info->screen_size;
323 total_size = info->fix.smem_len;
328 if (count >= total_size)
331 if (count + p > total_size)
332 count = total_size - p;
334 buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
338 src = (u32 __iomem *) (info->screen_base + p);
340 if (info->fbops->fb_sync)
341 info->fbops->fb_sync(info);
344 c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
346 for (i = c >> 2; i--;) {
347 *dst = fb_readl(src++);
349 (*dst & 0xff00ff00 >> 8) |
350 (*dst & 0x00ff00ff << 8);
354 u8 *dst8 = (u8 *)dst;
355 u8 __iomem *src8 = (u8 __iomem *)src;
357 for (i = c & 3; i--;) {
359 *dst8++ = fb_readb(++src8);
361 *dst8++ = fb_readb(--src8);
365 src = (u32 __iomem *)src8;
368 if (copy_to_user(buf, buffer, c)) {
380 return (err) ? err : cnt;
384 smtcfb_write(struct fb_info *info, const char __user *buf, size_t count,
387 unsigned long p = *ppos;
391 int c, i, cnt = 0, err = 0;
392 unsigned long total_size;
394 if (!info || !info->screen_base)
397 if (info->state != FBINFO_STATE_RUNNING)
400 total_size = info->screen_size;
403 total_size = info->fix.smem_len;
408 if (count > total_size) {
413 if (count + p > total_size) {
417 count = total_size - p;
420 buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
424 dst = (u32 __iomem *) (info->screen_base + p);
426 if (info->fbops->fb_sync)
427 info->fbops->fb_sync(info);
430 c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
433 if (copy_from_user(src, buf, c)) {
438 for (i = c >> 2; i--;) {
439 fb_writel((*src & 0xff00ff00 >> 8) |
440 (*src & 0x00ff00ff << 8), dst++);
444 u8 *src8 = (u8 *)src;
445 u8 __iomem *dst8 = (u8 __iomem *)dst;
447 for (i = c & 3; i--;) {
449 fb_writeb(*src8++, ++dst8);
451 fb_writeb(*src8++, --dst8);
455 dst = (u32 __iomem *)dst8;
466 return (cnt) ? cnt : err;
468 #endif /* ! __BIG_ENDIAN */
470 static void sm7xx_set_timing(struct smtcfb_info *sfb)
475 dev_dbg(&sfb->pdev->dev,
476 "sfb->width=%d sfb->height=%d sfb->fb.var.bits_per_pixel=%d sfb->hz=%d\n",
477 sfb->width, sfb->height, sfb->fb.var.bits_per_pixel, sfb->hz);
479 for (j = 0; j < numVGAModes; j++) {
480 if (VGAMode[j].mmSizeX == sfb->width &&
481 VGAMode[j].mmSizeY == sfb->height &&
482 VGAMode[j].bpp == sfb->fb.var.bits_per_pixel &&
483 VGAMode[j].hz == sfb->hz) {
484 dev_dbg(&sfb->pdev->dev,
485 "VGAMode[j].mmSizeX=%d VGAMode[j].mmSizeY=%d VGAMode[j].bpp=%d VGAMode[j].hz=%d\n",
486 VGAMode[j].mmSizeX, VGAMode[j].mmSizeY,
487 VGAMode[j].bpp, VGAMode[j].hz);
489 dev_dbg(&sfb->pdev->dev, "VGAMode index=%d\n", j);
491 smtc_mmiowb(0x0, 0x3c6);
495 smtc_mmiowb(VGAMode[j].Init_MISC, 0x3c2);
497 /* init SEQ register SR00 - SR04 */
498 for (i = 0; i < SIZE_SR00_SR04; i++)
499 smtc_seqw(i, VGAMode[j].Init_SR00_SR04[i]);
501 /* init SEQ register SR10 - SR24 */
502 for (i = 0; i < SIZE_SR10_SR24; i++)
504 VGAMode[j].Init_SR10_SR24[i]);
506 /* init SEQ register SR30 - SR75 */
507 for (i = 0; i < SIZE_SR30_SR75; i++)
508 if ((i + 0x30) != 0x62 &&
509 (i + 0x30) != 0x6a &&
512 VGAMode[j].Init_SR30_SR75[i]);
514 /* init SEQ register SR80 - SR93 */
515 for (i = 0; i < SIZE_SR80_SR93; i++)
517 VGAMode[j].Init_SR80_SR93[i]);
519 /* init SEQ register SRA0 - SRAF */
520 for (i = 0; i < SIZE_SRA0_SRAF; i++)
522 VGAMode[j].Init_SRA0_SRAF[i]);
524 /* init Graphic register GR00 - GR08 */
525 for (i = 0; i < SIZE_GR00_GR08; i++)
526 smtc_grphw(i, VGAMode[j].Init_GR00_GR08[i]);
528 /* init Attribute register AR00 - AR14 */
529 for (i = 0; i < SIZE_AR00_AR14; i++)
530 smtc_attrw(i, VGAMode[j].Init_AR00_AR14[i]);
532 /* init CRTC register CR00 - CR18 */
533 for (i = 0; i < SIZE_CR00_CR18; i++)
534 smtc_crtcw(i, VGAMode[j].Init_CR00_CR18[i]);
536 /* init CRTC register CR30 - CR4D */
537 for (i = 0; i < SIZE_CR30_CR4D; i++)
539 VGAMode[j].Init_CR30_CR4D[i]);
541 /* init CRTC register CR90 - CRA7 */
542 for (i = 0; i < SIZE_CR90_CRA7; i++)
544 VGAMode[j].Init_CR90_CRA7[i]);
547 smtc_mmiowb(0x67, 0x3c2);
549 /* set VPR registers */
550 writel(0x0, sfb->vp_regs + 0x0C);
551 writel(0x0, sfb->vp_regs + 0x40);
555 (sfb->width * sfb->fb.var.bits_per_pixel) / 64;
556 switch (sfb->fb.var.bits_per_pixel) {
558 writel(0x0, sfb->vp_regs + 0x0);
561 writel(0x00020000, sfb->vp_regs + 0x0);
564 writel(0x00040000, sfb->vp_regs + 0x0);
567 writel(0x00030000, sfb->vp_regs + 0x0);
570 writel((u32) (((m_nScreenStride + 2) << 16) | m_nScreenStride),
571 sfb->vp_regs + 0x10);
574 static void smtc_set_timing(struct smtcfb_info *sfb)
576 switch (sfb->chip_id) {
580 sm7xx_set_timing(sfb);
585 static void smtcfb_setmode(struct smtcfb_info *sfb)
587 switch (sfb->fb.var.bits_per_pixel) {
589 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
590 sfb->fb.fix.line_length = sfb->fb.var.xres * 4;
591 sfb->fb.var.red.length = 8;
592 sfb->fb.var.green.length = 8;
593 sfb->fb.var.blue.length = 8;
594 sfb->fb.var.red.offset = 16;
595 sfb->fb.var.green.offset = 8;
596 sfb->fb.var.blue.offset = 0;
599 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
600 sfb->fb.fix.line_length = sfb->fb.var.xres * 3;
601 sfb->fb.var.red.length = 8;
602 sfb->fb.var.green.length = 8;
603 sfb->fb.var.blue.length = 8;
604 sfb->fb.var.red.offset = 16;
605 sfb->fb.var.green.offset = 8;
606 sfb->fb.var.blue.offset = 0;
609 sfb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR;
610 sfb->fb.fix.line_length = sfb->fb.var.xres;
611 sfb->fb.var.red.length = 3;
612 sfb->fb.var.green.length = 3;
613 sfb->fb.var.blue.length = 2;
614 sfb->fb.var.red.offset = 5;
615 sfb->fb.var.green.offset = 2;
616 sfb->fb.var.blue.offset = 0;
620 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
621 sfb->fb.fix.line_length = sfb->fb.var.xres * 2;
622 sfb->fb.var.red.length = 5;
623 sfb->fb.var.green.length = 6;
624 sfb->fb.var.blue.length = 5;
625 sfb->fb.var.red.offset = 11;
626 sfb->fb.var.green.offset = 5;
627 sfb->fb.var.blue.offset = 0;
631 sfb->width = sfb->fb.var.xres;
632 sfb->height = sfb->fb.var.yres;
634 smtc_set_timing(sfb);
637 static int smtc_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
640 if (var->xres_virtual < var->xres)
641 var->xres_virtual = var->xres;
643 if (var->yres_virtual < var->yres)
644 var->yres_virtual = var->yres;
646 /* set valid default bpp */
647 if ((var->bits_per_pixel != 8) && (var->bits_per_pixel != 16) &&
648 (var->bits_per_pixel != 24) && (var->bits_per_pixel != 32))
649 var->bits_per_pixel = 16;
654 static int smtc_set_par(struct fb_info *info)
656 smtcfb_setmode(info->par);
661 static struct fb_ops smtcfb_ops = {
662 .owner = THIS_MODULE,
663 .fb_check_var = smtc_check_var,
664 .fb_set_par = smtc_set_par,
665 .fb_setcolreg = smtc_setcolreg,
666 .fb_blank = smtc_blank,
667 .fb_fillrect = cfb_fillrect,
668 .fb_imageblit = cfb_imageblit,
669 .fb_copyarea = cfb_copyarea,
671 .fb_read = smtcfb_read,
672 .fb_write = smtcfb_write,
677 * alloc struct smtcfb_info and assign default values
679 static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *pdev)
681 struct smtcfb_info *sfb;
683 sfb = kzalloc(sizeof(*sfb), GFP_KERNEL);
690 sfb->fb.flags = FBINFO_FLAG_DEFAULT;
691 sfb->fb.fbops = &smtcfb_ops;
692 sfb->fb.fix = smtcfb_fix;
693 sfb->fb.var = smtcfb_var;
694 sfb->fb.pseudo_palette = sfb->colreg;
701 * free struct smtcfb_info
703 static void smtc_free_fb_info(struct smtcfb_info *sfb)
709 * Unmap in the memory mapped IO registers
712 static void smtc_unmap_mmio(struct smtcfb_info *sfb)
714 if (sfb && smtc_RegBaseAddress)
715 smtc_RegBaseAddress = NULL;
719 * Map in the screen memory
722 static int smtc_map_smem(struct smtcfb_info *sfb,
723 struct pci_dev *pdev, u_long smem_len)
725 sfb->fb.fix.smem_start = pci_resource_start(pdev, 0);
728 if (sfb->fb.var.bits_per_pixel == 32)
729 sfb->fb.fix.smem_start += 0x800000;
732 sfb->fb.fix.smem_len = smem_len;
734 sfb->fb.screen_base = sfb->lfb;
736 if (!sfb->fb.screen_base) {
738 "%s: unable to map screen memory\n", sfb->fb.fix.id);
746 * Unmap in the screen memory
749 static void smtc_unmap_smem(struct smtcfb_info *sfb)
751 if (sfb && sfb->fb.screen_base) {
752 iounmap(sfb->fb.screen_base);
753 sfb->fb.screen_base = NULL;
758 * We need to wake up the device and make sure its in linear memory mode.
760 static inline void sm7xx_init_hw(void)
766 static int smtcfb_pci_probe(struct pci_dev *pdev,
767 const struct pci_device_id *ent)
769 struct smtcfb_info *sfb;
770 u_long smem_size = 0x00800000; /* default 8MB */
772 unsigned long mmio_base;
774 dev_info(&pdev->dev, "Silicon Motion display driver.");
776 err = pci_enable_device(pdev); /* enable SMTC chip */
780 sprintf(smtcfb_fix.id, "sm%Xfb", ent->device);
782 sfb = smtc_alloc_fb_info(pdev);
789 sfb->chip_id = ent->device;
791 pci_set_drvdata(pdev, sfb);
795 /* get mode parameter from smtc_scr_info */
796 if (smtc_scr_info.lfb_width != 0) {
797 sfb->fb.var.xres = smtc_scr_info.lfb_width;
798 sfb->fb.var.yres = smtc_scr_info.lfb_height;
799 sfb->fb.var.bits_per_pixel = smtc_scr_info.lfb_depth;
801 /* default resolution 1024x600 16bit mode */
802 sfb->fb.var.xres = SCREEN_X_RES;
803 sfb->fb.var.yres = SCREEN_Y_RES;
804 sfb->fb.var.bits_per_pixel = SCREEN_BPP;
808 if (sfb->fb.var.bits_per_pixel == 24)
809 sfb->fb.var.bits_per_pixel = (smtc_scr_info.lfb_depth = 32);
811 /* Map address and memory detection */
812 mmio_base = pci_resource_start(pdev, 0);
813 pci_read_config_byte(pdev, PCI_REVISION_ID, &sfb->chip_rev_id);
815 switch (sfb->chip_id) {
818 sfb->fb.fix.mmio_start = mmio_base + 0x00400000;
819 sfb->fb.fix.mmio_len = 0x00400000;
820 smem_size = SM712_VIDEOMEMORYSIZE;
822 sfb->lfb = ioremap(mmio_base, 0x00c00000);
824 sfb->lfb = ioremap(mmio_base, 0x00800000);
826 sfb->mmio = (smtc_RegBaseAddress =
827 sfb->lfb + 0x00700000);
828 sfb->dp_regs = sfb->lfb + 0x00408000;
829 sfb->vp_regs = sfb->lfb + 0x0040c000;
831 if (sfb->fb.var.bits_per_pixel == 32) {
832 sfb->lfb += 0x800000;
833 dev_info(&pdev->dev, "sfb->lfb=%p", sfb->lfb);
836 if (!smtc_RegBaseAddress) {
838 "%s: unable to map memory mapped IO!",
844 /* set MCLK = 14.31818 * (0x16 / 0x2) */
845 smtc_seqw(0x6a, 0x16);
846 smtc_seqw(0x6b, 0x02);
847 smtc_seqw(0x62, 0x3e);
848 /* enable PCI burst */
849 smtc_seqw(0x17, 0x20);
850 /* enable word swap */
852 if (sfb->fb.var.bits_per_pixel == 32)
853 smtc_seqw(0x17, 0x30);
857 sfb->fb.fix.mmio_start = mmio_base;
858 sfb->fb.fix.mmio_len = 0x00200000;
859 smem_size = SM722_VIDEOMEMORYSIZE;
860 sfb->dp_regs = ioremap(mmio_base, 0x00a00000);
861 sfb->lfb = sfb->dp_regs + 0x00200000;
862 sfb->mmio = (smtc_RegBaseAddress =
863 sfb->dp_regs + 0x000c0000);
864 sfb->vp_regs = sfb->dp_regs + 0x800;
866 smtc_seqw(0x62, 0xff);
867 smtc_seqw(0x6a, 0x0d);
868 smtc_seqw(0x6b, 0x02);
872 "No valid Silicon Motion display chip was detected!");
877 /* can support 32 bpp */
878 if (15 == sfb->fb.var.bits_per_pixel)
879 sfb->fb.var.bits_per_pixel = 16;
881 sfb->fb.var.xres_virtual = sfb->fb.var.xres;
882 sfb->fb.var.yres_virtual = sfb->fb.var.yres;
883 err = smtc_map_smem(sfb, pdev, smem_size);
889 err = register_framebuffer(&sfb->fb);
894 "Silicon Motion SM%X Rev%X primary display mode %dx%d-%d Init Complete.",
895 sfb->chip_id, sfb->chip_rev_id, sfb->fb.var.xres,
896 sfb->fb.var.yres, sfb->fb.var.bits_per_pixel);
901 dev_err(&pdev->dev, "Silicon Motion, Inc. primary display init fail.");
903 smtc_unmap_smem(sfb);
904 smtc_unmap_mmio(sfb);
906 smtc_free_fb_info(sfb);
909 pci_disable_device(pdev);
917 * 0x720 (Lynx3DM, Lynx3DM+)
919 static const struct pci_device_id smtcfb_pci_table[] = {
920 { PCI_DEVICE(0x126f, 0x710), },
921 { PCI_DEVICE(0x126f, 0x712), },
922 { PCI_DEVICE(0x126f, 0x720), },
926 static void smtcfb_pci_remove(struct pci_dev *pdev)
928 struct smtcfb_info *sfb;
930 sfb = pci_get_drvdata(pdev);
931 smtc_unmap_smem(sfb);
932 smtc_unmap_mmio(sfb);
933 unregister_framebuffer(&sfb->fb);
934 smtc_free_fb_info(sfb);
938 static int smtcfb_pci_suspend(struct device *device)
940 struct pci_dev *pdev = to_pci_dev(device);
941 struct smtcfb_info *sfb;
943 sfb = pci_get_drvdata(pdev);
945 /* set the hw in sleep mode use external clock and self memory refresh
946 * so that we can turn off internal PLLs later on
948 smtc_seqw(0x20, (smtc_seqr(0x20) | 0xc0));
949 smtc_seqw(0x69, (smtc_seqr(0x69) & 0xf7));
952 fb_set_suspend(&sfb->fb, 1);
955 /* additionally turn off all function blocks including internal PLLs */
956 smtc_seqw(0x21, 0xff);
961 static int smtcfb_pci_resume(struct device *device)
963 struct pci_dev *pdev = to_pci_dev(device);
964 struct smtcfb_info *sfb;
966 sfb = pci_get_drvdata(pdev);
968 /* reinit hardware */
970 switch (sfb->chip_id) {
973 /* set MCLK = 14.31818 * (0x16 / 0x2) */
974 smtc_seqw(0x6a, 0x16);
975 smtc_seqw(0x6b, 0x02);
976 smtc_seqw(0x62, 0x3e);
977 /* enable PCI burst */
978 smtc_seqw(0x17, 0x20);
980 if (sfb->fb.var.bits_per_pixel == 32)
981 smtc_seqw(0x17, 0x30);
985 smtc_seqw(0x62, 0xff);
986 smtc_seqw(0x6a, 0x0d);
987 smtc_seqw(0x6b, 0x02);
991 smtc_seqw(0x34, (smtc_seqr(0x34) | 0xc0));
992 smtc_seqw(0x33, ((smtc_seqr(0x33) | 0x08) & 0xfb));
997 fb_set_suspend(&sfb->fb, 0);
1003 static SIMPLE_DEV_PM_OPS(sm7xx_pm_ops, smtcfb_pci_suspend, smtcfb_pci_resume);
1004 #define SM7XX_PM_OPS (&sm7xx_pm_ops)
1006 #else /* !CONFIG_PM */
1008 #define SM7XX_PM_OPS NULL
1010 #endif /* !CONFIG_PM */
1012 static struct pci_driver smtcfb_driver = {
1014 .id_table = smtcfb_pci_table,
1015 .probe = smtcfb_pci_probe,
1016 .remove = smtcfb_pci_remove,
1017 .driver.pm = SM7XX_PM_OPS,
1020 module_pci_driver(smtcfb_driver);
1022 MODULE_AUTHOR("Siliconmotion ");
1023 MODULE_DESCRIPTION("Framebuffer driver for SMI Graphic Cards");
1024 MODULE_LICENSE("GPL");