Staging: sm7xx: add a new framebuffer driver
Yeeloong netbook has a sm712 video card, need this driver, but it is not
ready to upstream yet, so, go to drivers/staing at first.
This source code is originally from Silicon Motion Technology Corp, and
maintained at http://dev.lemote.com/code/linux_loongson for YeeLoong
netbook. I have done a lot of cleanups for it and merged it into my git
repository at http://dev.lemote.com/code/rt4ls.
Thanks to Simon for testing it on a little-endian x86 platform.
Thanks to Olivier Croset <olivier.croset@actis-computer.com> for
reporting the problem about __BIG_ENDIAN compiling problem and send a
relative patch.
The suspend/resume and blank support are contributed by Jason from
Silicon Motion Technology.
Tested-by: Simon Braunschmidt <sbraun@emlix.com>
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/sm7xx/smtcfb.c b/drivers/staging/sm7xx/smtcfb.c
new file mode 100644
index 0000000..161dbc9
--- /dev/null
+++ b/drivers/staging/sm7xx/smtcfb.c
@@ -0,0 +1,1253 @@
+/*
+ * Silicon Motion SM7XX frame buffer device
+ *
+ * Copyright (C) 2006 Silicon Motion Technology Corp.
+ * Authors: Ge Wang, gewang@siliconmotion.com
+ * Boyod boyod.yang@siliconmotion.com.cn
+ *
+ * Copyright (C) 2009 Lemote, Inc.
+ * Author: Wu Zhangjin, wuzj@lemote.com
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ *
+ * Version 0.10.26192.21.01
+ * - Add PowerPC/Big endian support
+ * - Add 2D support for Lynx
+ * - Verified on2.6.19.2 Boyod.yang <boyod.yang@siliconmotion.com.cn>
+ *
+ * Version 0.09.2621.00.01
+ * - Only support Linux Kernel's version 2.6.21.
+ * Boyod.yang <boyod.yang@siliconmotion.com.cn>
+ *
+ * Version 0.09
+ * - Only support Linux Kernel's version 2.6.12.
+ * Boyod.yang <boyod.yang@siliconmotion.com.cn>
+ */
+
+#ifndef __KERNEL__
+#define __KERNEL__
+#endif
+
+#include <linux/io.h>
+#include <linux/fb.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/uaccess.h>
+#include <linux/console.h>
+#include <linux/screen_info.h>
+
+#ifdef CONFIG_PM
+#include <linux/pm.h>
+#endif
+
+struct screen_info smtc_screen_info;
+
+#include "smtcfb.h"
+#include "smtc2d.h"
+
+#ifdef DEBUG
+#define smdbg(format, arg...) printk(KERN_DEBUG format , ## arg)
+#else
+#define smdbg(format, arg...)
+#endif
+
+/*
+* Private structure
+*/
+struct smtcfb_info {
+ /*
+ * The following is a pointer to be passed into the
+ * functions below. The modules outside the main
+ * voyager.c driver have no knowledge as to what
+ * is within this structure.
+ */
+ struct fb_info fb;
+ struct display_switch *dispsw;
+ struct pci_dev *dev;
+ signed int currcon;
+
+ struct {
+ u8 red, green, blue;
+ } palette[NR_RGB];
+
+ u_int palette_size;
+};
+
+struct par_info {
+ /*
+ * Hardware
+ */
+ u16 chipID;
+ unsigned char __iomem *m_pMMIO;
+ char __iomem *m_pLFB;
+ char *m_pDPR;
+ char *m_pVPR;
+ char *m_pCPR;
+
+ u_int width;
+ u_int height;
+ u_int hz;
+ u_long BaseAddressInVRAM;
+ u8 chipRevID;
+};
+
+struct vesa_mode_table {
+ char mode_index[6];
+ u16 lfb_width;
+ u16 lfb_height;
+ u16 lfb_depth;
+};
+
+static struct vesa_mode_table vesa_mode[] = {
+ {"0x301", 640, 480, 8},
+ {"0x303", 800, 600, 8},
+ {"0x305", 1024, 768, 8},
+ {"0x307", 1280, 1024, 8},
+
+ {"0x311", 640, 480, 16},
+ {"0x314", 800, 600, 16},
+ {"0x317", 1024, 768, 16},
+ {"0x31A", 1280, 1024, 16},
+
+ {"0x312", 640, 480, 24},
+ {"0x315", 800, 600, 24},
+ {"0x318", 1024, 768, 24},
+ {"0x31B", 1280, 1024, 24},
+};
+
+char __iomem *smtc_RegBaseAddress; /* Memory Map IO starting address */
+char __iomem *smtc_VRAMBaseAddress; /* video memory starting address */
+
+char *smtc_2DBaseAddress; /* 2D engine starting address */
+char *smtc_2Ddataport; /* 2D data port offset */
+short smtc_2Dacceleration;
+
+static u32 colreg[17];
+static struct par_info hw; /* hardware information */
+
+u16 smtc_ChipIDs[] = {
+ 0x710,
+ 0x712,
+ 0x720
+};
+
+#define numSMTCchipIDs (sizeof(smtc_ChipIDs) / sizeof(u16))
+
+void deWaitForNotBusy(void)
+{
+ unsigned long i = 0x1000000;
+ while (i--) {
+ if ((smtc_seqr(0x16) & 0x18) == 0x10)
+ break;
+ }
+ smtc_de_busy = 0;
+}
+
+static void sm712_set_timing(struct smtcfb_info *sfb,
+ struct par_info *ppar_info)
+{
+ int i = 0, j = 0;
+ u32 m_nScreenStride;
+
+ smdbg("\nppar_info->width = %d ppar_info->height = %d"
+ "sfb->fb.var.bits_per_pixel = %d ppar_info->hz = %d\n",
+ ppar_info->width, ppar_info->height,
+ sfb->fb.var.bits_per_pixel, ppar_info->hz);
+
+ for (j = 0; j < numVGAModes; j++) {
+ if (VGAMode[j].mmSizeX == ppar_info->width &&
+ VGAMode[j].mmSizeY == ppar_info->height &&
+ VGAMode[j].bpp == sfb->fb.var.bits_per_pixel &&
+ VGAMode[j].hz == ppar_info->hz) {
+
+ smdbg("\nVGAMode[j].mmSizeX = %d VGAMode[j].mmSizeY ="
+ "%d VGAMode[j].bpp = %d"
+ "VGAMode[j].hz=%d\n",
+ VGAMode[j].mmSizeX, VGAMode[j].mmSizeY,
+ VGAMode[j].bpp, VGAMode[j].hz);
+
+ smdbg("VGAMode index=%d\n", j);
+
+ smtc_mmiowb(0x0, 0x3c6);
+
+ smtc_seqw(0, 0x1);
+
+ smtc_mmiowb(VGAMode[j].Init_MISC, 0x3c2);
+
+ /* init SEQ register SR00 - SR04 */
+ for (i = 0; i < SIZE_SR00_SR04; i++)
+ smtc_seqw(i, VGAMode[j].Init_SR00_SR04[i]);
+
+ /* init SEQ register SR10 - SR24 */
+ for (i = 0; i < SIZE_SR10_SR24; i++)
+ smtc_seqw(i + 0x10,
+ VGAMode[j].Init_SR10_SR24[i]);
+
+ /* init SEQ register SR30 - SR75 */
+ for (i = 0; i < SIZE_SR30_SR75; i++)
+ if (((i + 0x30) != 0x62) \
+ && ((i + 0x30) != 0x6a) \
+ && ((i + 0x30) != 0x6b))
+ smtc_seqw(i + 0x30,
+ VGAMode[j].Init_SR30_SR75[i]);
+
+ /* init SEQ register SR80 - SR93 */
+ for (i = 0; i < SIZE_SR80_SR93; i++)
+ smtc_seqw(i + 0x80,
+ VGAMode[j].Init_SR80_SR93[i]);
+
+ /* init SEQ register SRA0 - SRAF */
+ for (i = 0; i < SIZE_SRA0_SRAF; i++)
+ smtc_seqw(i + 0xa0,
+ VGAMode[j].Init_SRA0_SRAF[i]);
+
+ /* init Graphic register GR00 - GR08 */
+ for (i = 0; i < SIZE_GR00_GR08; i++)
+ smtc_grphw(i, VGAMode[j].Init_GR00_GR08[i]);
+
+ /* init Attribute register AR00 - AR14 */
+ for (i = 0; i < SIZE_AR00_AR14; i++)
+ smtc_attrw(i, VGAMode[j].Init_AR00_AR14[i]);
+
+ /* init CRTC register CR00 - CR18 */
+ for (i = 0; i < SIZE_CR00_CR18; i++)
+ smtc_crtcw(i, VGAMode[j].Init_CR00_CR18[i]);
+
+ /* init CRTC register CR30 - CR4D */
+ for (i = 0; i < SIZE_CR30_CR4D; i++)
+ smtc_crtcw(i + 0x30,
+ VGAMode[j].Init_CR30_CR4D[i]);
+
+ /* init CRTC register CR90 - CRA7 */
+ for (i = 0; i < SIZE_CR90_CRA7; i++)
+ smtc_crtcw(i + 0x90,
+ VGAMode[j].Init_CR90_CRA7[i]);
+ }
+ }
+ smtc_mmiowb(0x67, 0x3c2);
+
+ /* set VPR registers */
+ writel(0x0, ppar_info->m_pVPR + 0x0C);
+ writel(0x0, ppar_info->m_pVPR + 0x40);
+
+ /* set data width */
+ m_nScreenStride =
+ (ppar_info->width * sfb->fb.var.bits_per_pixel) / 64;
+ switch (sfb->fb.var.bits_per_pixel) {
+ case 8:
+ writel(0x0, ppar_info->m_pVPR + 0x0);
+ break;
+ case 16:
+ writel(0x00020000, ppar_info->m_pVPR + 0x0);
+ break;
+ case 24:
+ writel(0x00040000, ppar_info->m_pVPR + 0x0);
+ break;
+ case 32:
+ writel(0x00030000, ppar_info->m_pVPR + 0x0);
+ break;
+ }
+ writel((u32) (((m_nScreenStride + 2) << 16) | m_nScreenStride),
+ ppar_info->m_pVPR + 0x10);
+
+}
+
+static void sm712_setpalette(int regno, unsigned red, unsigned green,
+ unsigned blue, struct fb_info *info)
+{
+ struct par_info *cur_par = (struct par_info *)info->par;
+
+ if (cur_par->BaseAddressInVRAM)
+ /*
+ * second display palette for dual head. Enable CRT RAM, 6-bit
+ * RAM
+ */
+ smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x20);
+ else
+ /* primary display palette. Enable LCD RAM only, 6-bit RAM */
+ smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x10);
+ smtc_mmiowb(regno, dac_reg);
+ smtc_mmiowb(red >> 10, dac_val);
+ smtc_mmiowb(green >> 10, dac_val);
+ smtc_mmiowb(blue >> 10, dac_val);
+}
+
+static void smtc_set_timing(struct smtcfb_info *sfb, struct par_info
+ *ppar_info)
+{
+ switch (ppar_info->chipID) {
+ case 0x710:
+ case 0x712:
+ case 0x720:
+ sm712_set_timing(sfb, ppar_info);
+ break;
+ }
+}
+
+static struct fb_var_screeninfo smtcfb_var = {
+ .xres = 1024,
+ .yres = 600,
+ .xres_virtual = 1024,
+ .yres_virtual = 600,
+ .bits_per_pixel = 16,
+ .red = {16, 8, 0},
+ .green = {8, 8, 0},
+ .blue = {0, 8, 0},
+ .activate = FB_ACTIVATE_NOW,
+ .height = -1,
+ .width = -1,
+ .vmode = FB_VMODE_NONINTERLACED,
+};
+
+static struct fb_fix_screeninfo smtcfb_fix = {
+ .id = "sm712fb",
+ .type = FB_TYPE_PACKED_PIXELS,
+ .visual = FB_VISUAL_TRUECOLOR,
+ .line_length = 800 * 3,
+ .accel = FB_ACCEL_SMI_LYNX,
+};
+
+/* chan_to_field
+ *
+ * convert a colour value into a field position
+ *
+ * from pxafb.c
+ */
+
+static inline unsigned int chan_to_field(unsigned int chan,
+ struct fb_bitfield *bf)
+{
+ chan &= 0xffff;
+ chan >>= 16 - bf->length;
+ return chan << bf->offset;
+}
+
+static int smtcfb_blank(int blank_mode, struct fb_info *info)
+{
+ /* clear DPMS setting */
+ switch (blank_mode) {
+ case FB_BLANK_UNBLANK:
+ /* Screen On: HSync: On, VSync : On */
+ smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
+ smtc_seqw(0x6a, 0x16);
+ smtc_seqw(0x6b, 0x02);
+ smtc_seqw(0x21, (smtc_seqr(0x21) & 0x77));
+ smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
+ smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
+ smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
+ smtc_seqw(0x31, (smtc_seqr(0x31) | 0x03));
+ break;
+ case FB_BLANK_NORMAL:
+ /* Screen Off: HSync: On, VSync : On Soft blank */
+ smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
+ smtc_seqw(0x6a, 0x16);
+ smtc_seqw(0x6b, 0x02);
+ smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
+ smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
+ smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
+ smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
+ break;
+ case FB_BLANK_VSYNC_SUSPEND:
+ /* Screen On: HSync: On, VSync : Off */
+ smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
+ smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
+ smtc_seqw(0x6a, 0x0c);
+ smtc_seqw(0x6b, 0x02);
+ smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
+ smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x20));
+ smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20));
+ smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
+ smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
+ smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
+ break;
+ case FB_BLANK_HSYNC_SUSPEND:
+ /* Screen On: HSync: Off, VSync : On */
+ smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
+ smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
+ smtc_seqw(0x6a, 0x0c);
+ smtc_seqw(0x6b, 0x02);
+ smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
+ smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x10));
+ smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
+ smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
+ smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
+ smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
+ break;
+ case FB_BLANK_POWERDOWN:
+ /* Screen On: HSync: Off, VSync : Off */
+ smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
+ smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
+ smtc_seqw(0x6a, 0x0c);
+ smtc_seqw(0x6b, 0x02);
+ smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
+ smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x30));
+ smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
+ smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
+ smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
+ smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int smtc_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned trans, struct fb_info *info)
+{
+ struct smtcfb_info *sfb = (struct smtcfb_info *)info;
+ u32 val;
+
+ if (regno > 255)
+ return 1;
+
+ switch (sfb->fb.fix.visual) {
+ case FB_VISUAL_DIRECTCOLOR:
+ case FB_VISUAL_TRUECOLOR:
+ /*
+ * 16/32 bit true-colour, use pseuo-palette for 16 base color
+ */
+ if (regno < 16) {
+ if (sfb->fb.var.bits_per_pixel == 16) {
+ u32 *pal = sfb->fb.pseudo_palette;
+ val = chan_to_field(red, &sfb->fb.var.red);
+ val |= chan_to_field(green, \
+ &sfb->fb.var.green);
+ val |= chan_to_field(blue, &sfb->fb.var.blue);
+#ifdef __BIG_ENDIAN
+ pal[regno] =
+ ((red & 0xf800) >> 8) |
+ ((green & 0xe000) >> 13) |
+ ((green & 0x1c00) << 3) |
+ ((blue & 0xf800) >> 3);
+#else
+ pal[regno] = val;
+#endif
+ } else {
+ u32 *pal = sfb->fb.pseudo_palette;
+ val = chan_to_field(red, &sfb->fb.var.red);
+ val |= chan_to_field(green, \
+ &sfb->fb.var.green);
+ val |= chan_to_field(blue, &sfb->fb.var.blue);
+#ifdef __BIG_ENDIAN
+ val =
+ (val & 0xff00ff00 >> 8) |
+ (val & 0x00ff00ff << 8);
+#endif
+ pal[regno] = val;
+ }
+ }
+ break;
+
+ case FB_VISUAL_PSEUDOCOLOR:
+ /* color depth 8 bit */
+ sm712_setpalette(regno, red, green, blue, info);
+ break;
+
+ default:
+ return 1; /* unknown type */
+ }
+
+ return 0;
+
+}
+
+#ifdef __BIG_ENDIAN
+static ssize_t smtcfb_read(struct fb_info *info, char __user * buf, size_t
+ count, loff_t *ppos)
+{
+ unsigned long p = *ppos;
+
+ u32 *buffer, *dst;
+ u32 __iomem *src;
+ int c, i, cnt = 0, err = 0;
+ unsigned long total_size;
+
+ if (!info || !info->screen_base)
+ return -ENODEV;
+
+ if (info->state != FBINFO_STATE_RUNNING)
+ return -EPERM;
+
+ total_size = info->screen_size;
+
+ if (total_size == 0)
+ total_size = info->fix.smem_len;
+
+ if (p >= total_size)
+ return 0;
+
+ if (count >= total_size)
+ count = total_size;
+
+ if (count + p > total_size)
+ count = total_size - p;
+
+ buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
+
+ src = (u32 __iomem *) (info->screen_base + p);
+
+ if (info->fbops->fb_sync)
+ info->fbops->fb_sync(info);
+
+ while (count) {
+ c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
+ dst = buffer;
+ for (i = c >> 2; i--;) {
+ *dst = fb_readl(src++);
+ *dst =
+ (*dst & 0xff00ff00 >> 8) |
+ (*dst & 0x00ff00ff << 8);
+ dst++;
+ }
+ if (c & 3) {
+ u8 *dst8 = (u8 *) dst;
+ u8 __iomem *src8 = (u8 __iomem *) src;
+
+ for (i = c & 3; i--;) {
+ if (i & 1) {
+ *dst8++ = fb_readb(++src8);
+ } else {
+ *dst8++ = fb_readb(--src8);
+ src8 += 2;
+ }
+ }
+ src = (u32 __iomem *) src8;
+ }
+
+ if (copy_to_user(buf, buffer, c)) {
+ err = -EFAULT;
+ break;
+ }
+ *ppos += c;
+ buf += c;
+ cnt += c;
+ count -= c;
+ }
+
+ kfree(buffer);
+
+ return (err) ? err : cnt;
+}
+
+static ssize_t
+smtcfb_write(struct fb_info *info, const char __user *buf, size_t count,
+ loff_t *ppos)
+{
+ unsigned long p = *ppos;
+
+ u32 *buffer, *src;
+ u32 __iomem *dst;
+ int c, i, cnt = 0, err = 0;
+ unsigned long total_size;
+
+ if (!info || !info->screen_base)
+ return -ENODEV;
+
+ if (info->state != FBINFO_STATE_RUNNING)
+ return -EPERM;
+
+ total_size = info->screen_size;
+
+ if (total_size == 0)
+ total_size = info->fix.smem_len;
+
+ if (p > total_size)
+ return -EFBIG;
+
+ if (count > total_size) {
+ err = -EFBIG;
+ count = total_size;
+ }
+
+ if (count + p > total_size) {
+ if (!err)
+ err = -ENOSPC;
+
+ count = total_size - p;
+ }
+
+ buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
+
+ dst = (u32 __iomem *) (info->screen_base + p);
+
+ if (info->fbops->fb_sync)
+ info->fbops->fb_sync(info);
+
+ while (count) {
+ c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
+ src = buffer;
+
+ if (copy_from_user(src, buf, c)) {
+ err = -EFAULT;
+ break;
+ }
+
+ for (i = c >> 2; i--;) {
+ fb_writel((*src & 0xff00ff00 >> 8) |
+ (*src & 0x00ff00ff << 8), dst++);
+ src++;
+ }
+ if (c & 3) {
+ u8 *src8 = (u8 *) src;
+ u8 __iomem *dst8 = (u8 __iomem *) dst;
+
+ for (i = c & 3; i--;) {
+ if (i & 1) {
+ fb_writeb(*src8++, ++dst8);
+ } else {
+ fb_writeb(*src8++, --dst8);
+ dst8 += 2;
+ }
+ }
+ dst = (u32 __iomem *) dst8;
+ }
+
+ *ppos += c;
+ buf += c;
+ cnt += c;
+ count -= c;
+ }
+
+ kfree(buffer);
+
+ return (cnt) ? cnt : err;
+}
+#endif /* ! __BIG_ENDIAN */
+
+#include "smtc2d.c"
+
+void smtcfb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
+{
+ struct par_info *p = (struct par_info *)info->par;
+
+ if (smtc_2Dacceleration) {
+ if (!area->width || !area->height)
+ return;
+
+ deCopy(p->BaseAddressInVRAM, 0, info->var.bits_per_pixel,
+ area->dx, area->dy, area->width, area->height,
+ p->BaseAddressInVRAM, 0, area->sx, area->sy, 0, 0xC);
+
+ } else
+ cfb_copyarea(info, area);
+}
+
+void smtcfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
+{
+ struct par_info *p = (struct par_info *)info->par;
+
+ if (smtc_2Dacceleration) {
+ if (!rect->width || !rect->height)
+ return;
+ if (info->var.bits_per_pixel >= 24)
+ deFillRect(p->BaseAddressInVRAM, 0, rect->dx * 3,
+ rect->dy * 3, rect->width * 3, rect->height,
+ rect->color);
+ else
+ deFillRect(p->BaseAddressInVRAM, 0, rect->dx, rect->dy,
+ rect->width, rect->height, rect->color);
+ } else
+ cfb_fillrect(info, rect);
+}
+
+void smtcfb_imageblit(struct fb_info *info, const struct fb_image *image)
+{
+ struct par_info *p = (struct par_info *)info->par;
+ u32 bg_col = 0, fg_col = 0;
+
+ if ((smtc_2Dacceleration) && (image->depth == 1)) {
+ if (smtc_de_busy)
+ deWaitForNotBusy();
+
+ switch (info->var.bits_per_pixel) {
+ case 8:
+ bg_col = image->bg_color;
+ fg_col = image->fg_color;
+ break;
+ case 16:
+ bg_col =
+ ((u32 *) (info->pseudo_palette))[image->bg_color];
+ fg_col =
+ ((u32 *) (info->pseudo_palette))[image->fg_color];
+ break;
+ case 32:
+ bg_col =
+ ((u32 *) (info->pseudo_palette))[image->bg_color];
+ fg_col =
+ ((u32 *) (info->pseudo_palette))[image->fg_color];
+ break;
+ }
+
+ deSystemMem2VideoMemMonoBlt(
+ image->data,
+ image->width / 8,
+ 0,
+ p->BaseAddressInVRAM,
+ 0,
+ 0,
+ image->dx, image->dy,
+ image->width, image->height,
+ fg_col, bg_col,
+ 0x0C);
+
+ } else
+ cfb_imageblit(info, image);
+}
+
+static struct fb_ops smtcfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_setcolreg = smtc_setcolreg,
+ .fb_blank = smtcfb_blank,
+ .fb_fillrect = smtcfb_fillrect,
+ .fb_imageblit = smtcfb_imageblit,
+ .fb_copyarea = smtcfb_copyarea,
+#ifdef __BIG_ENDIAN
+ .fb_read = smtcfb_read,
+ .fb_write = smtcfb_write,
+#endif
+
+};
+
+void smtcfb_setmode(struct smtcfb_info *sfb)
+{
+ switch (sfb->fb.var.bits_per_pixel) {
+ case 32:
+ sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
+ sfb->fb.fix.line_length = sfb->fb.var.xres * 4;
+ sfb->fb.var.red.length = 8;
+ sfb->fb.var.green.length = 8;
+ sfb->fb.var.blue.length = 8;
+ sfb->fb.var.red.offset = 16;
+ sfb->fb.var.green.offset = 8;
+ sfb->fb.var.blue.offset = 0;
+
+ break;
+ case 8:
+ sfb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR;
+ sfb->fb.fix.line_length = sfb->fb.var.xres;
+ sfb->fb.var.red.offset = 5;
+ sfb->fb.var.red.length = 3;
+ sfb->fb.var.green.offset = 2;
+ sfb->fb.var.green.length = 3;
+ sfb->fb.var.blue.offset = 0;
+ sfb->fb.var.blue.length = 2;
+ break;
+ case 24:
+ sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
+ sfb->fb.fix.line_length = sfb->fb.var.xres * 3;
+ sfb->fb.var.red.length = 8;
+ sfb->fb.var.green.length = 8;
+ sfb->fb.var.blue.length = 8;
+
+ sfb->fb.var.red.offset = 16;
+ sfb->fb.var.green.offset = 8;
+ sfb->fb.var.blue.offset = 0;
+
+ break;
+ case 16:
+ default:
+ sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
+ sfb->fb.fix.line_length = sfb->fb.var.xres * 2;
+
+ sfb->fb.var.red.length = 5;
+ sfb->fb.var.green.length = 6;
+ sfb->fb.var.blue.length = 5;
+
+ sfb->fb.var.red.offset = 11;
+ sfb->fb.var.green.offset = 5;
+ sfb->fb.var.blue.offset = 0;
+
+ break;
+ }
+
+ hw.width = sfb->fb.var.xres;
+ hw.height = sfb->fb.var.yres;
+ hw.hz = 60;
+ smtc_set_timing(sfb, &hw);
+ if (smtc_2Dacceleration) {
+ printk("2D acceleration enabled!\n");
+ /* Init smtc drawing engine */
+ deInit(sfb->fb.var.xres, sfb->fb.var.yres,
+ sfb->fb.var.bits_per_pixel);
+ }
+}
+
+/*
+ * Alloc struct smtcfb_info and assign the default value
+ */
+static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *dev,
+ char *name)
+{
+ struct smtcfb_info *sfb;
+
+ sfb = kmalloc(sizeof(struct smtcfb_info), GFP_KERNEL);
+
+ if (!sfb)
+ return NULL;
+
+ memset(sfb, 0, sizeof(struct smtcfb_info));
+
+ sfb->currcon = -1;
+ sfb->dev = dev;
+
+ /*** Init sfb->fb with default value ***/
+ sfb->fb.flags = FBINFO_FLAG_DEFAULT;
+ sfb->fb.fbops = &smtcfb_ops;
+ sfb->fb.var = smtcfb_var;
+ sfb->fb.fix = smtcfb_fix;
+
+ strcpy(sfb->fb.fix.id, name);
+
+ sfb->fb.fix.type = FB_TYPE_PACKED_PIXELS;
+ sfb->fb.fix.type_aux = 0;
+ sfb->fb.fix.xpanstep = 0;
+ sfb->fb.fix.ypanstep = 0;
+ sfb->fb.fix.ywrapstep = 0;
+ sfb->fb.fix.accel = FB_ACCEL_SMI_LYNX;
+
+ sfb->fb.var.nonstd = 0;
+ sfb->fb.var.activate = FB_ACTIVATE_NOW;
+ sfb->fb.var.height = -1;
+ sfb->fb.var.width = -1;
+ /* text mode acceleration */
+ sfb->fb.var.accel_flags = FB_ACCELF_TEXT;
+ sfb->fb.var.vmode = FB_VMODE_NONINTERLACED;
+ sfb->fb.par = &hw;
+ sfb->fb.pseudo_palette = colreg;
+
+ return sfb;
+}
+
+/*
+ * Unmap in the memory mapped IO registers
+ */
+
+static void smtc_unmap_mmio(struct smtcfb_info *sfb)
+{
+ if (sfb && smtc_RegBaseAddress)
+ smtc_RegBaseAddress = NULL;
+}
+
+/*
+ * Map in the screen memory
+ */
+
+static int smtc_map_smem(struct smtcfb_info *sfb,
+ struct pci_dev *dev, u_long smem_len)
+{
+ if (sfb->fb.var.bits_per_pixel == 32) {
+#ifdef __BIG_ENDIAN
+ sfb->fb.fix.smem_start = pci_resource_start(dev, 0)
+ + 0x800000;
+#else
+ sfb->fb.fix.smem_start = pci_resource_start(dev, 0);
+#endif
+ } else {
+ sfb->fb.fix.smem_start = pci_resource_start(dev, 0);
+ }
+
+ sfb->fb.fix.smem_len = smem_len;
+
+ sfb->fb.screen_base = smtc_VRAMBaseAddress;
+
+ if (!sfb->fb.screen_base) {
+ printk(KERN_INFO "%s: unable to map screen memory\n",
+ sfb->fb.fix.id);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+/*
+ * Unmap in the screen memory
+ *
+ */
+static void smtc_unmap_smem(struct smtcfb_info *sfb)
+{
+ if (sfb && sfb->fb.screen_base) {
+ iounmap(sfb->fb.screen_base);
+ sfb->fb.screen_base = NULL;
+ }
+}
+
+/*
+ * We need to wake up the LynxEM+, and make sure its in linear memory mode.
+ */
+static inline void sm7xx_init_hw(void)
+{
+ outb_p(0x18, 0x3c4);
+ outb_p(0x11, 0x3c5);
+}
+
+static void smtc_free_fb_info(struct smtcfb_info *sfb)
+{
+ if (sfb) {
+ fb_alloc_cmap(&sfb->fb.cmap, 0, 0);
+ kfree(sfb);
+ }
+}
+
+/*
+ * sm712vga_setup - process command line options, get vga parameter
+ * @options: string of options
+ * Returns zero.
+ *
+ */
+static int __init __maybe_unused sm712vga_setup(char *options)
+{
+ int index;
+
+ if (!options || !*options) {
+ smdbg("\n No vga parameter\n");
+ return -EINVAL;
+ }
+
+ smtc_screen_info.lfb_width = 0;
+ smtc_screen_info.lfb_height = 0;
+ smtc_screen_info.lfb_depth = 0;
+
+ smdbg("\nsm712vga_setup = %s\n", options);
+
+ for (index = 0;
+ index < (sizeof(vesa_mode) / sizeof(struct vesa_mode_table));
+ index++) {
+ if (strstr(options, vesa_mode[index].mode_index)) {
+ smtc_screen_info.lfb_width = vesa_mode[index].lfb_width;
+ smtc_screen_info.lfb_height =
+ vesa_mode[index].lfb_height;
+ smtc_screen_info.lfb_depth = vesa_mode[index].lfb_depth;
+ return 0;
+ }
+ }
+
+ return -1;
+}
+__setup("vga=", sm712vga_setup);
+
+/* Jason (08/13/2009)
+ * Original init function changed to probe method to be used by pci_drv
+ * process used to detect chips replaced with kernel process in pci_drv
+ */
+static int __init smtcfb_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ struct smtcfb_info *sfb;
+ u_long smem_size = 0x00800000; /* default 8MB */
+ char name[16];
+ int err;
+ unsigned long pFramebufferPhysical;
+
+ printk(KERN_INFO
+ "Silicon Motion display driver " SMTC_LINUX_FB_VERSION "\n");
+
+ err = pci_enable_device(pdev); /* enable SMTC chip */
+
+ if (err)
+ return err;
+ err = -ENOMEM;
+
+ hw.chipID = ent->device;
+ sprintf(name, "sm%Xfb", hw.chipID);
+
+ sfb = smtc_alloc_fb_info(pdev, name);
+
+ if (!sfb)
+ goto failed;
+ /* Jason (08/13/2009)
+ * Store fb_info to be further used when suspending and resuming
+ */
+ pci_set_drvdata(pdev, sfb);
+
+ sm7xx_init_hw();
+
+ /*get mode parameter from smtc_screen_info */
+ if (smtc_screen_info.lfb_width != 0) {
+ sfb->fb.var.xres = smtc_screen_info.lfb_width;
+ sfb->fb.var.yres = smtc_screen_info.lfb_height;
+ sfb->fb.var.bits_per_pixel = smtc_screen_info.lfb_depth;
+ } else {
+ /* default resolution 1024x600 16bit mode */
+ sfb->fb.var.xres = SCREEN_X_RES;
+ sfb->fb.var.yres = SCREEN_Y_RES;
+ sfb->fb.var.bits_per_pixel = SCREEN_BPP;
+ }
+
+#ifdef __BIG_ENDIAN
+ if (sfb->fb.var.bits_per_pixel == 24)
+ sfb->fb.var.bits_per_pixel = (smtc_screen_info.lfb_depth = 32);
+#endif
+ /* Map address and memory detection */
+ pFramebufferPhysical = pci_resource_start(pdev, 0);
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &hw.chipRevID);
+
+ switch (hw.chipID) {
+ case 0x710:
+ case 0x712:
+ sfb->fb.fix.mmio_start = pFramebufferPhysical + 0x00400000;
+ sfb->fb.fix.mmio_len = 0x00400000;
+ smem_size = SM712_VIDEOMEMORYSIZE;
+#ifdef __BIG_ENDIAN
+ hw.m_pLFB = (smtc_VRAMBaseAddress =
+ ioremap(pFramebufferPhysical, 0x00c00000));
+#else
+ hw.m_pLFB = (smtc_VRAMBaseAddress =
+ ioremap(pFramebufferPhysical, 0x00800000));
+#endif
+ hw.m_pMMIO = (smtc_RegBaseAddress =
+ smtc_VRAMBaseAddress + 0x00700000);
+ smtc_2DBaseAddress = (hw.m_pDPR =
+ smtc_VRAMBaseAddress + 0x00408000);
+ smtc_2Ddataport = smtc_VRAMBaseAddress + DE_DATA_PORT_712;
+ hw.m_pVPR = hw.m_pLFB + 0x0040c000;
+#ifdef __BIG_ENDIAN
+ if (sfb->fb.var.bits_per_pixel == 32) {
+ smtc_VRAMBaseAddress += 0x800000;
+ hw.m_pLFB += 0x800000;
+ printk(KERN_INFO
+ "\nsmtc_VRAMBaseAddress=%p hw.m_pLFB=%p\n",
+ smtc_VRAMBaseAddress, hw.m_pLFB);
+ }
+#endif
+ if (!smtc_RegBaseAddress) {
+ printk(KERN_INFO
+ "%s: unable to map memory mapped IO\n",
+ sfb->fb.fix.id);
+ return -ENOMEM;
+ }
+
+ /* set MCLK = 14.31818 * (0x16 / 0x2) */
+ smtc_seqw(0x6a, 0x16);
+ smtc_seqw(0x6b, 0x02);
+ smtc_seqw(0x62, 0x3e);
+ /* enable PCI burst */
+ smtc_seqw(0x17, 0x20);
+ /* enable word swap */
+#ifdef __BIG_ENDIAN
+ if (sfb->fb.var.bits_per_pixel == 32)
+ smtc_seqw(0x17, 0x30);
+#endif
+#ifdef CONFIG_FB_SM7XX_ACCEL
+ smtc_2Dacceleration = 1;
+#endif
+ break;
+ case 0x720:
+ sfb->fb.fix.mmio_start = pFramebufferPhysical;
+ sfb->fb.fix.mmio_len = 0x00200000;
+ smem_size = SM722_VIDEOMEMORYSIZE;
+ smtc_2DBaseAddress = (hw.m_pDPR =
+ ioremap(pFramebufferPhysical, 0x00a00000));
+ hw.m_pLFB = (smtc_VRAMBaseAddress =
+ smtc_2DBaseAddress + 0x00200000);
+ hw.m_pMMIO = (smtc_RegBaseAddress =
+ smtc_2DBaseAddress + 0x000c0000);
+ smtc_2Ddataport = smtc_2DBaseAddress + DE_DATA_PORT_722;
+ hw.m_pVPR = smtc_2DBaseAddress + 0x800;
+
+ smtc_seqw(0x62, 0xff);
+ smtc_seqw(0x6a, 0x0d);
+ smtc_seqw(0x6b, 0x02);
+ smtc_2Dacceleration = 0;
+ break;
+ default:
+ printk(KERN_INFO
+ "No valid Silicon Motion display chip was detected!\n");
+
+ smtc_free_fb_info(sfb);
+ return err;
+ }
+
+ /* can support 32 bpp */
+ if (15 == sfb->fb.var.bits_per_pixel)
+ sfb->fb.var.bits_per_pixel = 16;
+
+ sfb->fb.var.xres_virtual = sfb->fb.var.xres;
+ sfb->fb.var.yres_virtual = sfb->fb.var.yres;
+ err = smtc_map_smem(sfb, pdev, smem_size);
+ if (err)
+ goto failed;
+
+ smtcfb_setmode(sfb);
+ /* Primary display starting from 0 postion */
+ hw.BaseAddressInVRAM = 0;
+ sfb->fb.par = &hw;
+
+ err = register_framebuffer(&sfb->fb);
+ if (err < 0)
+ goto failed;
+
+ printk(KERN_INFO "Silicon Motion SM%X Rev%X primary display mode"
+ "%dx%d-%d Init Complete.\n", hw.chipID, hw.chipRevID,
+ sfb->fb.var.xres, sfb->fb.var.yres,
+ sfb->fb.var.bits_per_pixel);
+
+ return 0;
+
+ failed:
+ printk(KERN_INFO "Silicon Motion, Inc. primary display init fail\n");
+
+ smtc_unmap_smem(sfb);
+ smtc_unmap_mmio(sfb);
+ smtc_free_fb_info(sfb);
+
+ return err;
+}
+
+
+/* Jason (08/11/2009) PCI_DRV wrapper essential structs */
+static struct pci_device_id smtcfb_pci_table[] = {
+ {0x126f, 0x710, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ {0x126f, 0x712, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ {0x126f, 0x720, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ {0,}
+};
+
+
+/* Jason (08/14/2009)
+ * do some clean up when the driver module is removed
+ */
+static void __devexit smtcfb_pci_remove(struct pci_dev *pdev)
+{
+ struct smtcfb_info *sfb;
+
+ sfb = pci_get_drvdata(pdev);
+ pci_set_drvdata(pdev, NULL);
+ smtc_unmap_smem(sfb);
+ smtc_unmap_mmio(sfb);
+ unregister_framebuffer(&sfb->fb);
+ smtc_free_fb_info(sfb);
+}
+
+/* Jason (08/14/2009)
+ * suspend function, called when the suspend event is triggered
+ */
+static int __maybe_unused smtcfb_suspend(struct pci_dev *pdev, pm_message_t msg)
+{
+ struct smtcfb_info *sfb;
+ int retv;
+
+ sfb = pci_get_drvdata(pdev);
+
+ /* set the hw in sleep mode use externel clock and self memory refresh
+ * so that we can turn off internal PLLs later on
+ */
+ smtc_seqw(0x20, (smtc_seqr(0x20) | 0xc0));
+ smtc_seqw(0x69, (smtc_seqr(0x69) & 0xf7));
+
+ switch (msg.event) {
+ case PM_EVENT_FREEZE:
+ case PM_EVENT_PRETHAW:
+ pdev->dev.power.power_state = msg;
+ return 0;
+ }
+
+ /* when doing suspend, call fb apis and pci apis */
+ if (msg.event == PM_EVENT_SUSPEND) {
+ acquire_console_sem();
+ fb_set_suspend(&sfb->fb, 1);
+ release_console_sem();
+ retv = pci_save_state(pdev);
+ pci_disable_device(pdev);
+ retv = pci_choose_state(pdev, msg);
+ retv = pci_set_power_state(pdev, retv);
+ }
+
+ pdev->dev.power.power_state = msg;
+
+ /* additionaly turn off all function blocks including internal PLLs */
+ smtc_seqw(0x21, 0xff);
+
+ return 0;
+}
+
+static int __maybe_unused smtcfb_resume(struct pci_dev *pdev)
+{
+ struct smtcfb_info *sfb;
+ int retv;
+
+ sfb = pci_get_drvdata(pdev);
+
+ /* when resuming, restore pci data and fb cursor */
+ if (pdev->dev.power.power_state.event != PM_EVENT_FREEZE) {
+ retv = pci_set_power_state(pdev, PCI_D0);
+ retv = pci_restore_state(pdev);
+ if (pci_enable_device(pdev))
+ return -1;
+ pci_set_master(pdev);
+ }
+
+ /* reinit hardware */
+ sm7xx_init_hw();
+ switch (hw.chipID) {
+ case 0x710:
+ case 0x712:
+ /* set MCLK = 14.31818 * (0x16 / 0x2) */
+ smtc_seqw(0x6a, 0x16);
+ smtc_seqw(0x6b, 0x02);
+ smtc_seqw(0x62, 0x3e);
+ /* enable PCI burst */
+ smtc_seqw(0x17, 0x20);
+#ifdef __BIG_ENDIAN
+ if (sfb->fb.var.bits_per_pixel == 32)
+ smtc_seqw(0x17, 0x30);
+#endif
+ break;
+ case 0x720:
+ smtc_seqw(0x62, 0xff);
+ smtc_seqw(0x6a, 0x0d);
+ smtc_seqw(0x6b, 0x02);
+ break;
+ }
+
+ smtc_seqw(0x34, (smtc_seqr(0x34) | 0xc0));
+ smtc_seqw(0x33, ((smtc_seqr(0x33) | 0x08) & 0xfb));
+
+ smtcfb_setmode(sfb);
+
+ acquire_console_sem();
+ fb_set_suspend(&sfb->fb, 0);
+ release_console_sem();
+
+ return 0;
+}
+
+/* Jason (08/13/2009)
+ * pci_driver struct used to wrap the original driver
+ * so that it can be registered into the kernel and
+ * the proper method would be called when suspending and resuming
+ */
+static struct pci_driver smtcfb_driver = {
+ .name = "smtcfb",
+ .id_table = smtcfb_pci_table,
+ .probe = smtcfb_pci_probe,
+ .remove = __devexit_p(smtcfb_pci_remove),
+#ifdef CONFIG_PM
+ .suspend = smtcfb_suspend,
+ .resume = smtcfb_resume,
+#endif
+};
+
+static int __init smtcfb_init(void)
+{
+ return pci_register_driver(&smtcfb_driver);
+}
+
+static void __exit smtcfb_exit(void)
+{
+ pci_unregister_driver(&smtcfb_driver);
+}
+
+module_init(smtcfb_init);
+module_exit(smtcfb_exit);
+
+MODULE_AUTHOR("Siliconmotion ");
+MODULE_DESCRIPTION("Framebuffer driver for SMI Graphic Cards");
+MODULE_LICENSE("GPL");