/*
* 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, wuzhangjin@gmail.com
*
* Copyright (C) 2011 Igalia, S.L.
* Author: Javier M. Mellid <jmunhoz@igalia.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.
*
* Framebuffer driver for Silicon Motion SM710, SM712, SM721 and SM722 chips
*/
#include <linux/io.h>
#include <linux/fb.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/module.h>
#include <linux/console.h>
#include <linux/screen_info.h>
#ifdef CONFIG_PM
#include <linux/pm.h>
#endif
#include "sm7xx.h"
/*
* Private structure
*/
struct smtcfb_info {
struct pci_dev *pdev;
struct fb_info fb;
u16 chip_id;
u8 chip_rev_id;
void __iomem *lfb; /* linear frame buffer */
void __iomem *dp_regs; /* drawing processor control regs */
void __iomem *vp_regs; /* video processor control regs */
void __iomem *cp_regs; /* capture processor control regs */
void __iomem *mmio; /* memory map IO port */
u_int width;
u_int height;
u_int hz;
u32 colreg[17];
};
void __iomem *smtc_regbaseaddress; /* Memory Map IO starting address */
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,
.nonstd = 0,
.accel_flags = FB_ACCELF_TEXT,
};
static struct fb_fix_screeninfo smtcfb_fix = {
.id = "smXXXfb",
.type = FB_TYPE_PACKED_PIXELS,
.visual = FB_VISUAL_TRUECOLOR,
.line_length = 800 * 3,
.accel = FB_ACCEL_SMI_LYNX,
.type_aux = 0,
.xpanstep = 0,
.ypanstep = 0,
.ywrapstep = 0,
};
struct vesa_mode {
char index[6];
u16 lfb_width;
u16 lfb_height;
u16 lfb_depth;
};
static struct vesa_mode vesa_mode_table[] = {
{"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},
};
static struct screen_info smtc_scr_info;
static char *mode_option;
/* process command line options, get vga parameter */
static void __init sm7xx_vga_setup(char *options)
{
int i;
if (!options || !*options)
return;
smtc_scr_info.lfb_width = 0;
smtc_scr_info.lfb_height = 0;
smtc_scr_info.lfb_depth = 0;
pr_debug("sm7xx_vga_setup = %s\n", options);
for (i = 0; i < ARRAY_SIZE(vesa_mode_table); i++) {
if (strstr(options, vesa_mode_table[i].index)) {
smtc_scr_info.lfb_width = vesa_mode_table[i].lfb_width;
smtc_scr_info.lfb_height =
vesa_mode_table[i].lfb_height;
smtc_scr_info.lfb_depth = vesa_mode_table[i].lfb_depth;
return;
}
}
}
static void sm712_setpalette(int regno, unsigned red, unsigned green,
unsigned blue, struct fb_info *info)
{
/* set bit 5:4 = 01 (write LCD RAM only) */
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);
}
/* 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 smtc_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;
u32 val;
sfb = info->par;
if (regno > 255)
return 1;
switch (sfb->fb.fix.visual) {
case FB_VISUAL_DIRECTCOLOR:
case FB_VISUAL_TRUECOLOR:
/*
* 16/32 bit true-colour, use pseudo-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 */
static void sm7xx_set_timing(struct smtcfb_info *sfb)
{
int i = 0, j = 0;
u32 m_nscreenstride;
dev_dbg(&sfb->pdev->dev,
"sfb->width=%d sfb->height=%d sfb->fb.var.bits_per_pixel=%d sfb->hz=%d\n",
sfb->width, sfb->height, sfb->fb.var.bits_per_pixel, sfb->hz);
for (j = 0; j < numvgamodes; j++) {
if (vgamode[j].mmsizex == sfb->width &&
vgamode[j].mmsizey == sfb->height &&
vgamode[j].bpp == sfb->fb.var.bits_per_pixel &&
vgamode[j].hz == sfb->hz) {
dev_dbg(&sfb->pdev->dev,
"vgamode[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);
dev_dbg(&sfb->pdev->dev, "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, sfb->vp_regs + 0x0C);
writel(0x0, sfb->vp_regs + 0x40);
/* set data width */
m_nscreenstride =
(sfb->width * sfb->fb.var.bits_per_pixel) / 64;
switch (sfb->fb.var.bits_per_pixel) {
case 8:
writel(0x0, sfb->vp_regs + 0x0);
break;
case 16:
writel(0x00020000, sfb->vp_regs + 0x0);
break;
case 24:
writel(0x00040000, sfb->vp_regs + 0x0);
break;
case 32:
writel(0x00030000, sfb->vp_regs + 0x0);
break;
}
writel((u32) (((m_nscreenstride + 2) << 16) | m_nscreenstride),
sfb->vp_regs + 0x10);
}
static void smtc_set_timing(struct smtcfb_info *sfb)
{
switch (sfb->chip_id) {
case 0x710:
case 0x712:
case 0x720:
sm7xx_set_timing(sfb);
break;
}
}
static 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 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 8:
sfb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR;
sfb->fb.fix.line_length = sfb->fb.var.xres;
sfb->fb.var.red.length = 3;
sfb->fb.var.green.length = 3;
sfb->fb.var.blue.length = 2;
sfb->fb.var.red.offset = 5;
sfb->fb.var.green.offset = 2;
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;
}
sfb->width = sfb->fb.var.xres;
sfb->height = sfb->fb.var.yres;
sfb->hz = 60;
smtc_set_timing(sfb);
}
static int smtc_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
/* sanity checks */
if (var->xres_virtual < var->xres)
var->xres_virtual = var->xres;
if (var->yres_virtual < var->yres)
var->yres_virtual = var->yres;
/* set valid default bpp */
if ((var->bits_per_pixel != 8) && (var->bits_per_pixel != 16) &&
(var->bits_per_pixel != 24) && (var->bits_per_pixel != 32))
var->bits_per_pixel = 16;
return 0;
}
static int smtc_set_par(struct fb_info *info)
{
smtcfb_setmode(info->par);
return 0;
}
static struct fb_ops smtcfb_ops = {
.owner = THIS_MODULE,
.fb_check_var = smtc_check_var,
.fb_set_par = smtc_set_par,
.fb_setcolreg = smtc_setcolreg,
.fb_blank = smtc_blank,
.fb_fillrect = cfb_fillrect,
.fb_imageblit = cfb_imageblit,
.fb_copyarea = cfb_copyarea,
#ifdef __BIG_ENDIAN
.fb_read = smtcfb_read,
.fb_write = smtcfb_write,
#endif
};
/*
* alloc struct smtcfb_info and assign default values
*/
static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *pdev)
{
struct smtcfb_info *sfb;
sfb = kzalloc(sizeof(*sfb), GFP_KERNEL);
if (!sfb)
return NULL;
sfb->pdev = pdev;
sfb->fb.flags = FBINFO_FLAG_DEFAULT;
sfb->fb.fbops = &smtcfb_ops;
sfb->fb.fix = smtcfb_fix;
sfb->fb.var = smtcfb_var;
sfb->fb.pseudo_palette = sfb->colreg;
sfb->fb.par = sfb;
return sfb;
}
/*
* free struct smtcfb_info
*/
static void smtc_free_fb_info(struct smtcfb_info *sfb)
{
kfree(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 *pdev, u_long smem_len)
{
sfb->fb.fix.smem_start = pci_resource_start(pdev, 0);
#ifdef __BIG_ENDIAN
if (sfb->fb.var.bits_per_pixel == 32)
sfb->fb.fix.smem_start += 0x800000;
#endif
sfb->fb.fix.smem_len = smem_len;
sfb->fb.screen_base = sfb->lfb;
if (!sfb->fb.screen_base) {
dev_err(&pdev->dev,
"%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 device and make sure its in linear memory mode.
*/
static inline void sm7xx_init_hw(void)
{
outb_p(0x18, 0x3c4);
outb_p(0x11, 0x3c5);
}
static int smtcfb_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct smtcfb_info *sfb;
u_long smem_size = 0x00800000; /* default 8MB */
int err;
unsigned long mmio_base;
dev_info(&pdev->dev, "Silicon Motion display driver.");
err = pci_enable_device(pdev); /* enable SMTC chip */
if (err)
return err;
err = pci_request_region(pdev, 0, "sm7xxfb");
if (err < 0) {
dev_err(&pdev->dev, "cannot reserve framebuffer region\n");
goto failed_regions;
}
sprintf(smtcfb_fix.id, "sm%Xfb", ent->device);
sfb = smtc_alloc_fb_info(pdev);
if (!sfb) {
err = -ENOMEM;
goto failed_free;
}
sfb->chip_id = ent->device;
pci_set_drvdata(pdev, sfb);
sm7xx_init_hw();
/* get mode parameter from smtc_scr_info */
if (smtc_scr_info.lfb_width != 0) {
sfb->fb.var.xres = smtc_scr_info.lfb_width;
sfb->fb.var.yres = smtc_scr_info.lfb_height;
sfb->fb.var.bits_per_pixel = smtc_scr_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_scr_info.lfb_depth = 32);
#endif
/* Map address and memory detection */
mmio_base = pci_resource_start(pdev, 0);
pci_read_config_byte(pdev, PCI_REVISION_ID, &sfb->chip_rev_id);
switch (sfb->chip_id) {
case 0x710:
case 0x712:
sfb->fb.fix.mmio_start = mmio_base + 0x00400000;
sfb->fb.fix.mmio_len = 0x00400000;
smem_size = SM712_VIDEOMEMORYSIZE;
#ifdef __BIG_ENDIAN
sfb->lfb = ioremap(mmio_base, 0x00c00000);
#else
sfb->lfb = ioremap(mmio_base, 0x00800000);
#endif
sfb->mmio = (smtc_regbaseaddress =
sfb->lfb + 0x00700000);
sfb->dp_regs = sfb->lfb + 0x00408000;
sfb->vp_regs = sfb->lfb + 0x0040c000;
#ifdef __BIG_ENDIAN
if (sfb->fb.var.bits_per_pixel == 32) {
sfb->lfb += 0x800000;
dev_info(&pdev->dev, "sfb->lfb=%p", sfb->lfb);
}
#endif
if (!smtc_regbaseaddress) {
dev_err(&pdev->dev,
"%s: unable to map memory mapped IO!",
sfb->fb.fix.id);
err = -ENOMEM;
goto failed_fb;
}
/* 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
break;
case 0x720:
sfb->fb.fix.mmio_start = mmio_base;
sfb->fb.fix.mmio_len = 0x00200000;
smem_size = SM722_VIDEOMEMORYSIZE;
sfb->dp_regs = ioremap(mmio_base, 0x00a00000);
sfb->lfb = sfb->dp_regs + 0x00200000;
sfb->mmio = (smtc_regbaseaddress =
sfb->dp_regs + 0x000c0000);
sfb->vp_regs = sfb->dp_regs + 0x800;
smtc_seqw(0x62, 0xff);
smtc_seqw(0x6a, 0x0d);
smtc_seqw(0x6b, 0x02);
break;
default:
dev_err(&pdev->dev,
"No valid Silicon Motion display chip was detected!");
goto failed_fb;
}
/* 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);
err = register_framebuffer(&sfb->fb);
if (err < 0)
goto failed;
dev_info(&pdev->dev,
"Silicon Motion SM%X Rev%X primary display mode %dx%d-%d Init Complete.",
sfb->chip_id, sfb->chip_rev_id, sfb->fb.var.xres,
sfb->fb.var.yres, sfb->fb.var.bits_per_pixel);
return 0;
failed:
dev_err(&pdev->dev, "Silicon Motion, Inc. primary display init fail.");
smtc_unmap_smem(sfb);
smtc_unmap_mmio(sfb);
failed_fb:
smtc_free_fb_info(sfb);
failed_free:
pci_release_region(pdev, 0);
failed_regions:
pci_disable_device(pdev);
return err;
}
/*
* 0x710 (LynxEM)
* 0x712 (LynxEM+)
* 0x720 (Lynx3DM, Lynx3DM+)
*/
static const struct pci_device_id smtcfb_pci_table[] = {
{ PCI_DEVICE(0x126f, 0x710), },
{ PCI_DEVICE(0x126f, 0x712), },
{ PCI_DEVICE(0x126f, 0x720), },
{0,}
};
MODULE_DEVICE_TABLE(pci, smtcfb_pci_table);
static void smtcfb_pci_remove(struct pci_dev *pdev)
{
struct smtcfb_info *sfb;
sfb = pci_get_drvdata(pdev);
smtc_unmap_smem(sfb);
smtc_unmap_mmio(sfb);
unregister_framebuffer(&sfb->fb);
smtc_free_fb_info(sfb);
pci_release_region(pdev, 0);
pci_disable_device(pdev);
}
#ifdef CONFIG_PM
static int smtcfb_pci_suspend(struct device *device)
{
struct pci_dev *pdev = to_pci_dev(device);
struct smtcfb_info *sfb;
sfb = pci_get_drvdata(pdev);
/* set the hw in sleep mode use external 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));
console_lock();
fb_set_suspend(&sfb->fb, 1);
console_unlock();
/* additionally turn off all function blocks including internal PLLs */
smtc_seqw(0x21, 0xff);
return 0;
}
static int smtcfb_pci_resume(struct device *device)
{
struct pci_dev *pdev = to_pci_dev(device);
struct smtcfb_info *sfb;
sfb = pci_get_drvdata(pdev);
/* reinit hardware */
sm7xx_init_hw();
switch (sfb->chip_id) {
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);
console_lock();
fb_set_suspend(&sfb->fb, 0);
console_unlock();
return 0;
}
static SIMPLE_DEV_PM_OPS(sm7xx_pm_ops, smtcfb_pci_suspend, smtcfb_pci_resume);
#define SM7XX_PM_OPS (&sm7xx_pm_ops)
#else /* !CONFIG_PM */
#define SM7XX_PM_OPS NULL
#endif /* !CONFIG_PM */
static struct pci_driver smtcfb_driver = {
.name = "smtcfb",
.id_table = smtcfb_pci_table,
.probe = smtcfb_pci_probe,
.remove = smtcfb_pci_remove,
.driver.pm = SM7XX_PM_OPS,
};
static int __init sm712fb_init(void)
{
#ifndef MODULE
char *option = NULL;
if (fb_get_options("sm712fb", &option))
return -ENODEV;
if (option && *option)
mode_option = option;
#endif
sm7xx_vga_setup(mode_option);
return pci_register_driver(&smtcfb_driver);
}
module_init(sm712fb_init);
static void __exit sm712fb_exit(void)
{
pci_unregister_driver(&smtcfb_driver);
}
module_exit(sm712fb_exit);
MODULE_AUTHOR("Siliconmotion ");
MODULE_DESCRIPTION("Framebuffer driver for SMI Graphic Cards");
MODULE_LICENSE("GPL");