- 根目录:
- drivers
- staging
- sm750fb
- sm750.c
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/mm_types.h>
#include <linux/vmalloc.h>
#include <linux/pagemap.h>
#include <linux/screen_info.h>
#include <linux/vmalloc.h>
#include <linux/pagemap.h>
#include <linux/console.h>
#include <asm/fb.h>
#include "sm750.h"
#include "sm750_accel.h"
#include "sm750_cursor.h"
#include "modedb.h"
/*
* #ifdef __BIG_ENDIAN
* ssize_t lynxfb_ops_write(struct fb_info *info, const char __user *buf,
* size_t count, loff_t *ppos);
* ssize_t lynxfb_ops_read(struct fb_info *info, char __user *buf,
* size_t count, loff_t *ppos);
* #endif
*/
/* common var for all device */
static int g_hwcursor = 1;
static int g_noaccel;
static int g_nomtrr;
static const char *g_fbmode[] = {NULL, NULL};
static const char *g_def_fbmode = "800x600-16@60";
static char *g_settings;
static int g_dualview;
static char *g_option;
static const struct fb_videomode lynx750_ext[] = {
/* 1024x600-60 VESA [1.71:1] */
{NULL, 60, 1024, 600, 20423, 144, 40, 18, 1, 104, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED},
/* 1024x600-70 VESA */
{NULL, 70, 1024, 600, 17211, 152, 48, 21, 1, 104, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED},
/* 1024x600-75 VESA */
{NULL, 75, 1024, 600, 15822, 160, 56, 23, 1, 104, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED},
/* 1024x600-85 VESA */
{NULL, 85, 1024, 600, 13730, 168, 56, 26, 1, 112, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED},
/* 720x480 */
{NULL, 60, 720, 480, 37427, 88, 16, 13, 1, 72, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED},
/* 1280x720 [1.78:1] */
{NULL, 60, 1280, 720, 13426, 162, 86, 22, 1, 136, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED},
/* 1280x768@60 */
{NULL, 60, 1280, 768, 12579, 192, 64, 20, 3, 128, 7,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED},
/* 1360 x 768 [1.77083:1] */
{NULL, 60, 1360, 768, 11804, 208, 64, 23, 1, 144, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED},
/* 1368 x 768 [1.78:1] */
{NULL, 60, 1368, 768, 11647, 216, 72, 23, 1, 144, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED},
/* 1440 x 900 [16:10] */
{NULL, 60, 1440, 900, 9392, 232, 80, 28, 1, 152, 3,
FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED},
/* 1440x960 [15:10] */
{NULL, 60, 1440, 960, 8733, 240, 88, 30, 1, 152, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED},
/* 1920x1080 [16:9] */
{NULL, 60, 1920, 1080, 6734, 148, 88, 41, 1, 44, 3,
FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED},
};
/* no hardware cursor supported under version 2.6.10, kernel bug */
static int lynxfb_ops_cursor(struct fb_info *info, struct fb_cursor *fbcursor)
{
struct lynxfb_par *par;
struct lynxfb_crtc *crtc;
struct lynx_cursor *cursor;
par = info->par;
crtc = &par->crtc;
cursor = &crtc->cursor;
if (fbcursor->image.width > cursor->maxW ||
fbcursor->image.height > cursor->maxH ||
fbcursor->image.depth > 1) {
return -ENXIO;
}
hw_cursor_disable(cursor);
if (fbcursor->set & FB_CUR_SETSIZE)
hw_cursor_setSize(cursor,
fbcursor->image.width,
fbcursor->image.height);
if (fbcursor->set & FB_CUR_SETPOS)
hw_cursor_setPos(cursor,
fbcursor->image.dx - info->var.xoffset,
fbcursor->image.dy - info->var.yoffset);
if (fbcursor->set & FB_CUR_SETCMAP) {
/* get the 16bit color of kernel means */
u16 fg, bg;
fg = ((info->cmap.red[fbcursor->image.fg_color] & 0xf800)) |
((info->cmap.green[fbcursor->image.fg_color] & 0xfc00) >> 5) |
((info->cmap.blue[fbcursor->image.fg_color] & 0xf800) >> 11);
bg = ((info->cmap.red[fbcursor->image.bg_color] & 0xf800)) |
((info->cmap.green[fbcursor->image.bg_color] & 0xfc00) >> 5) |
((info->cmap.blue[fbcursor->image.bg_color] & 0xf800) >> 11);
hw_cursor_setColor(cursor, fg, bg);
}
if (fbcursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
hw_cursor_setData(cursor,
fbcursor->rop,
fbcursor->image.data,
fbcursor->mask);
}
if (fbcursor->enable)
hw_cursor_enable(cursor);
return 0;
}
static void lynxfb_ops_fillrect(struct fb_info *info,
const struct fb_fillrect *region)
{
struct lynxfb_par *par;
struct sm750_dev *sm750_dev;
unsigned int base, pitch, Bpp, rop;
u32 color;
if (info->state != FBINFO_STATE_RUNNING)
return;
par = info->par;
sm750_dev = par->dev;
/*
* each time 2d function begin to work,below three variable always need
* be set, seems we can put them together in some place
*/
base = par->crtc.oScreen;
pitch = info->fix.line_length;
Bpp = info->var.bits_per_pixel >> 3;
color = (Bpp == 1) ? region->color :
((u32 *)info->pseudo_palette)[region->color];
rop = (region->rop != ROP_COPY) ? HW_ROP2_XOR : HW_ROP2_COPY;
/*
* If not use spin_lock,system will die if user load driver
* and immediately unload driver frequently (dual)
*/
if (sm750_dev->dual)
spin_lock(&sm750_dev->slock);
sm750_dev->accel.de_fillrect(&sm750_dev->accel,
base, pitch, Bpp,
region->dx, region->dy,
region->width, region->height,
color, rop);
if (sm750_dev->dual)
spin_unlock(&sm750_dev->slock);
}
static void lynxfb_ops_copyarea(struct fb_info *info,
const struct fb_copyarea *region)
{
struct lynxfb_par *par;
struct sm750_dev *sm750_dev;
unsigned int base, pitch, Bpp;
par = info->par;
sm750_dev = par->dev;
/*
* each time 2d function begin to work,below three variable always need
* be set, seems we can put them together in some place
*/
base = par->crtc.oScreen;
pitch = info->fix.line_length;
Bpp = info->var.bits_per_pixel >> 3;
/*
* If not use spin_lock, system will die if user load driver
* and immediately unload driver frequently (dual)
*/
if (sm750_dev->dual)
spin_lock(&sm750_dev->slock);
sm750_dev->accel.de_copyarea(&sm750_dev->accel,
base, pitch, region->sx, region->sy,
base, pitch, Bpp, region->dx, region->dy,
region->width, region->height,
HW_ROP2_COPY);
if (sm750_dev->dual)
spin_unlock(&sm750_dev->slock);
}
static void lynxfb_ops_imageblit(struct fb_info *info,
const struct fb_image *image)
{
unsigned int base, pitch, Bpp;
unsigned int fgcol, bgcol;
struct lynxfb_par *par;
struct sm750_dev *sm750_dev;
par = info->par;
sm750_dev = par->dev;
/*
* each time 2d function begin to work,below three variable always need
* be set, seems we can put them together in some place
*/
base = par->crtc.oScreen;
pitch = info->fix.line_length;
Bpp = info->var.bits_per_pixel >> 3;
/* TODO: Implement hardware acceleration for image->depth > 1 */
if (image->depth != 1) {
cfb_imageblit(info, image);
return;
}
if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
fgcol = ((u32 *)info->pseudo_palette)[image->fg_color];
bgcol = ((u32 *)info->pseudo_palette)[image->bg_color];
} else {
fgcol = image->fg_color;
bgcol = image->bg_color;
}
/*
* If not use spin_lock, system will die if user load driver
* and immediately unload driver frequently (dual)
*/
if (sm750_dev->dual)
spin_lock(&sm750_dev->slock);
sm750_dev->accel.de_imageblit(&sm750_dev->accel,
image->data, image->width >> 3, 0,
base, pitch, Bpp,
image->dx, image->dy,
image->width, image->height,
fgcol, bgcol, HW_ROP2_COPY);
if (sm750_dev->dual)
spin_unlock(&sm750_dev->slock);
}
static int lynxfb_ops_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct lynxfb_par *par;
struct lynxfb_crtc *crtc;
if (!info)
return -EINVAL;
par = info->par;
crtc = &par->crtc;
return hw_sm750_pan_display(crtc, var, info);
}
static int lynxfb_ops_set_par(struct fb_info *info)
{
struct lynxfb_par *par;
struct lynxfb_crtc *crtc;
struct lynxfb_output *output;
struct fb_var_screeninfo *var;
struct fb_fix_screeninfo *fix;
int ret;
unsigned int line_length;
if (!info)
return -EINVAL;
ret = 0;
par = info->par;
crtc = &par->crtc;
output = &par->output;
var = &info->var;
fix = &info->fix;
/* fix structur is not so FIX ... */
line_length = var->xres_virtual * var->bits_per_pixel / 8;
line_length = ALIGN(line_length, crtc->line_pad);
fix->line_length = line_length;
pr_info("fix->line_length = %d\n", fix->line_length);
/*
* var->red,green,blue,transp are need to be set by driver
* and these data should be set before setcolreg routine
*/
switch (var->bits_per_pixel) {
case 8:
fix->visual = FB_VISUAL_PSEUDOCOLOR;
var->red.offset = 0;
var->red.length = 8;
var->green.offset = 0;
var->green.length = 8;
var->blue.offset = 0;
var->blue.length = 8;
var->transp.length = 0;
var->transp.offset = 0;
break;
case 16:
var->red.offset = 11;
var->red.length = 5;
var->green.offset = 5;
var->green.length = 6;
var->blue.offset = 0;
var->blue.length = 5;
var->transp.length = 0;
var->transp.offset = 0;
fix->visual = FB_VISUAL_TRUECOLOR;
break;
case 24:
case 32:
var->red.offset = 16;
var->red.length = 8;
var->green.offset = 8;
var->green.length = 8;
var->blue.offset = 0;
var->blue.length = 8;
fix->visual = FB_VISUAL_TRUECOLOR;
break;
default:
ret = -EINVAL;
break;
}
var->height = var->width = -1;
var->accel_flags = 0;/*FB_ACCELF_TEXT;*/
if (ret) {
pr_err("pixel bpp format not satisfied\n.");
return ret;
}
ret = hw_sm750_crtc_setMode(crtc, var, fix);
if (!ret)
ret = hw_sm750_output_setMode(output, var, fix);
return ret;
}
static inline unsigned int chan_to_field(unsigned int chan,
struct fb_bitfield *bf)
{
chan &= 0xffff;
chan >>= 16 - bf->length;
return chan << bf->offset;
}
#ifdef CONFIG_PM
static int lynxfb_suspend(struct pci_dev *pdev, pm_message_t mesg)
{
struct fb_info *info;
struct sm750_dev *sm750_dev;
int ret;
if (mesg.event == pdev->dev.power.power_state.event)
return 0;
ret = 0;
sm750_dev = pci_get_drvdata(pdev);
switch (mesg.event) {
case PM_EVENT_FREEZE:
case PM_EVENT_PRETHAW:
pdev->dev.power.power_state = mesg;
return 0;
}
console_lock();
if (mesg.event & PM_EVENT_SLEEP) {
info = sm750_dev->fbinfo[0];
if (info)
/* 1 means do suspend */
fb_set_suspend(info, 1);
info = sm750_dev->fbinfo[1];
if (info)
/* 1 means do suspend */
fb_set_suspend(info, 1);
ret = pci_save_state(pdev);
if (ret) {
pr_err("error:%d occurred in pci_save_state\n", ret);
return ret;
}
pci_disable_device(pdev);
ret = pci_set_power_state(pdev, pci_choose_state(pdev, mesg));
if (ret) {
pr_err("error:%d occurred in pci_set_power_state\n", ret);
return ret;
}
}
pdev->dev.power.power_state = mesg;
console_unlock();
return ret;
}
static int lynxfb_resume(struct pci_dev *pdev)
{
struct fb_info *info;
struct sm750_dev *sm750_dev;
struct lynxfb_par *par;
struct lynxfb_crtc *crtc;
struct lynx_cursor *cursor;
int ret;
ret = 0;
sm750_dev = pci_get_drvdata(pdev);
console_lock();
ret = pci_set_power_state(pdev, PCI_D0);
if (ret) {
pr_err("error:%d occurred in pci_set_power_state\n", ret);
return ret;
}
if (pdev->dev.power.power_state.event != PM_EVENT_FREEZE) {
pci_restore_state(pdev);
ret = pci_enable_device(pdev);
if (ret) {
pr_err("error:%d occurred in pci_enable_device\n", ret);
return ret;
}
pci_set_master(pdev);
}
hw_sm750_inithw(sm750_dev, pdev);
info = sm750_dev->fbinfo[0];
if (info) {
par = info->par;
crtc = &par->crtc;
cursor = &crtc->cursor;
memset_io(cursor->vstart, 0x0, cursor->size);
memset_io(crtc->vScreen, 0x0, crtc->vidmem_size);
lynxfb_ops_set_par(info);
fb_set_suspend(info, 0);
}
info = sm750_dev->fbinfo[1];
if (info) {
par = info->par;
crtc = &par->crtc;
cursor = &crtc->cursor;
memset_io(cursor->vstart, 0x0, cursor->size);
memset_io(crtc->vScreen, 0x0, crtc->vidmem_size);
lynxfb_ops_set_par(info);
fb_set_suspend(info, 0);
}
pdev->dev.power.power_state.event = PM_EVENT_RESUME;
console_unlock();
return ret;
}
#endif
static int lynxfb_ops_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct lynxfb_par *par;
struct lynxfb_crtc *crtc;
struct lynxfb_output *output;
resource_size_t request;
par = info->par;
crtc = &par->crtc;
output = &par->output;
pr_debug("check var:%dx%d-%d\n",
var->xres,
var->yres,
var->bits_per_pixel);
switch (var->bits_per_pixel) {
case 8:
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
var->red.offset = 0;
var->red.length = 8;
var->green.offset = 0;
var->green.length = 8;
var->blue.offset = 0;
var->blue.length = 8;
var->transp.length = 0;
var->transp.offset = 0;
break;
case 16:
var->red.offset = 11;
var->red.length = 5;
var->green.offset = 5;
var->green.length = 6;
var->blue.offset = 0;
var->blue.length = 5;
var->transp.length = 0;
var->transp.offset = 0;
info->fix.visual = FB_VISUAL_TRUECOLOR;
break;
case 24:
case 32:
var->red.offset = 16;
var->red.length = 8;
var->green.offset = 8;
var->green.length = 8;
var->blue.offset = 0;
var->blue.length = 8;
info->fix.visual = FB_VISUAL_TRUECOLOR;
break;
default:
pr_err("bpp %d not supported\n", var->bits_per_pixel);
return -EINVAL;
}
var->height = var->width = -1;
var->accel_flags = 0;/* FB_ACCELF_TEXT; */
/* check if current fb's video memory big enought to hold the onscreen*/
request = var->xres_virtual * (var->bits_per_pixel >> 3);
/* defaulty crtc->channel go with par->index */
request = ALIGN(request, crtc->line_pad);
request = request * var->yres_virtual;
if (crtc->vidmem_size < request) {
pr_err("not enough video memory for mode\n");
return -ENOMEM;
}
return hw_sm750_crtc_checkMode(crtc, var);
}
static int lynxfb_ops_setcolreg(unsigned regno,
unsigned red,
unsigned green,
unsigned blue,
unsigned transp,
struct fb_info *info)
{
struct lynxfb_par *par;
struct lynxfb_crtc *crtc;
struct fb_var_screeninfo *var;
int ret;
par = info->par;
crtc = &par->crtc;
var = &info->var;
ret = 0;
if (regno > 256) {
pr_err("regno = %d\n", regno);
return -EINVAL;
}
if (info->var.grayscale)
red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
if (var->bits_per_pixel == 8 &&
info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
red >>= 8;
green >>= 8;
blue >>= 8;
ret = hw_sm750_setColReg(crtc, regno, red, green, blue);
goto exit;
}
if (info->fix.visual == FB_VISUAL_TRUECOLOR && regno < 256) {
u32 val;
if (var->bits_per_pixel == 16 ||
var->bits_per_pixel == 32 ||
var->bits_per_pixel == 24) {
val = chan_to_field(red, &var->red);
val |= chan_to_field(green, &var->green);
val |= chan_to_field(blue, &var->blue);
par->pseudo_palette[regno] = val;
goto exit;
}
}
ret = -EINVAL;
exit:
return ret;
}
static int lynxfb_ops_blank(int blank, struct fb_info *info)
{
struct lynxfb_par *par;
struct lynxfb_output *output;
pr_debug("blank = %d.\n", blank);
par = info->par;
output = &par->output;
return output->proc_setBLANK(output, blank);
}
static int sm750fb_set_drv(struct lynxfb_par *par)
{
int ret;
struct sm750_dev *sm750_dev;
struct lynxfb_output *output;
struct lynxfb_crtc *crtc;
ret = 0;
sm750_dev = par->dev;
output = &par->output;
crtc = &par->crtc;
crtc->vidmem_size = (sm750_dev->dual) ? sm750_dev->vidmem_size >> 1 :
sm750_dev->vidmem_size;
/* setup crtc and output member */
sm750_dev->hwCursor = g_hwcursor;
crtc->line_pad = 16;
crtc->xpanstep = 8;
crtc->ypanstep = 1;
crtc->ywrapstep = 0;
output->proc_setBLANK = (sm750_dev->revid == SM750LE_REVISION_ID) ?
hw_sm750le_setBLANK : hw_sm750_setBLANK;
/* chip specific phase */
sm750_dev->accel.de_wait = (sm750_dev->revid == SM750LE_REVISION_ID) ?
hw_sm750le_deWait : hw_sm750_deWait;
switch (sm750_dev->dataflow) {
case sm750_simul_pri:
output->paths = sm750_pnc;
crtc->channel = sm750_primary;
crtc->oScreen = 0;
crtc->vScreen = sm750_dev->pvMem;
pr_info("use simul primary mode\n");
break;
case sm750_simul_sec:
output->paths = sm750_pnc;
crtc->channel = sm750_secondary;
crtc->oScreen = 0;
crtc->vScreen = sm750_dev->pvMem;
break;
case sm750_dual_normal:
if (par->index == 0) {
output->paths = sm750_panel;
crtc->channel = sm750_primary;
crtc->oScreen = 0;
crtc->vScreen = sm750_dev->pvMem;
} else {
output->paths = sm750_crt;
crtc->channel = sm750_secondary;
/* not consider of padding stuffs for oScreen,need fix */
crtc->oScreen = (sm750_dev->vidmem_size >> 1);
crtc->vScreen = sm750_dev->pvMem + crtc->oScreen;
}
break;
case sm750_dual_swap:
if (par->index == 0) {
output->paths = sm750_panel;
crtc->channel = sm750_secondary;
crtc->oScreen = 0;
crtc->vScreen = sm750_dev->pvMem;
} else {
output->paths = sm750_crt;
crtc->channel = sm750_primary;
/* not consider of padding stuffs for oScreen,need fix */
crtc->oScreen = (sm750_dev->vidmem_size >> 1);
crtc->vScreen = sm750_dev->pvMem + crtc->oScreen;
}
break;
default:
ret = -EINVAL;
}
return ret;
}
static struct fb_ops lynxfb_ops = {
.owner = THIS_MODULE,
.fb_check_var = lynxfb_ops_check_var,
.fb_set_par = lynxfb_ops_set_par,
.fb_setcolreg = lynxfb_ops_setcolreg,
.fb_blank = lynxfb_ops_blank,
.fb_fillrect = cfb_fillrect,
.fb_imageblit = cfb_imageblit,
.fb_copyarea = cfb_copyarea,
/* cursor */
.fb_cursor = lynxfb_ops_cursor,
};
static int lynxfb_set_fbinfo(struct fb_info *info, int index)
{
int i;
struct lynxfb_par *par;
struct sm750_dev *sm750_dev;
struct lynxfb_crtc *crtc;
struct lynxfb_output *output;
struct fb_var_screeninfo *var;
struct fb_fix_screeninfo *fix;
const struct fb_videomode *pdb[] = {
lynx750_ext, NULL, vesa_modes,
};
int cdb[] = {ARRAY_SIZE(lynx750_ext), 0, VESA_MODEDB_SIZE};
static const char *mdb_desc[] = {
"driver prepared modes",
"kernel prepared default modedb",
"kernel HELPERS prepared vesa_modes",
};
static const char *fixId[2] = {
"sm750_fb1", "sm750_fb2",
};
int ret, line_length;
ret = 0;
par = (struct lynxfb_par *)info->par;
sm750_dev = par->dev;
crtc = &par->crtc;
output = &par->output;
var = &info->var;
fix = &info->fix;
/* set index */
par->index = index;
output->channel = &crtc->channel;
sm750fb_set_drv(par);
lynxfb_ops.fb_pan_display = lynxfb_ops_pan_display;
/*
* set current cursor variable and proc pointer,
* must be set after crtc member initialized
*/
crtc->cursor.offset = crtc->oScreen + crtc->vidmem_size - 1024;
crtc->cursor.mmio = sm750_dev->pvReg +
0x800f0 + (int)crtc->channel * 0x140;
pr_info("crtc->cursor.mmio = %p\n", crtc->cursor.mmio);
crtc->cursor.maxH = crtc->cursor.maxW = 64;
crtc->cursor.size = crtc->cursor.maxH * crtc->cursor.maxW * 2 / 8;
crtc->cursor.vstart = sm750_dev->pvMem + crtc->cursor.offset;
memset_io(crtc->cursor.vstart, 0, crtc->cursor.size);
if (!g_hwcursor) {
lynxfb_ops.fb_cursor = NULL;
hw_cursor_disable(&crtc->cursor);
}
/* set info->fbops, must be set before fb_find_mode */
if (!sm750_dev->accel_off) {
/* use 2d acceleration */
lynxfb_ops.fb_fillrect = lynxfb_ops_fillrect;
lynxfb_ops.fb_copyarea = lynxfb_ops_copyarea;
lynxfb_ops.fb_imageblit = lynxfb_ops_imageblit;
}
info->fbops = &lynxfb_ops;
if (!g_fbmode[index]) {
g_fbmode[index] = g_def_fbmode;
if (index)
g_fbmode[index] = g_fbmode[0];
}
for (i = 0; i < 3; i++) {
ret = fb_find_mode(var, info, g_fbmode[index],
pdb[i], cdb[i], NULL, 8);
if (ret == 1) {
pr_info("success! use specified mode:%s in %s\n",
g_fbmode[index],
mdb_desc[i]);
break;
} else if (ret == 2) {
pr_warn("use specified mode:%s in %s,with an ignored refresh rate\n",
g_fbmode[index],
mdb_desc[i]);
break;
} else if (ret == 3) {
pr_warn("wanna use default mode\n");
/*break;*/
} else if (ret == 4) {
pr_warn("fall back to any valid mode\n");
} else {
pr_warn("ret = %d,fb_find_mode failed,with %s\n",
ret,
mdb_desc[i]);
}
}
/* some member of info->var had been set by fb_find_mode */
pr_info("Member of info->var is :\n\
xres=%d\n\
yres=%d\n\
xres_virtual=%d\n\
yres_virtual=%d\n\
xoffset=%d\n\
yoffset=%d\n\
bits_per_pixel=%d\n \
...\n",
var->xres,
var->yres,
var->xres_virtual,
var->yres_virtual,
var->xoffset,
var->yoffset,
var->bits_per_pixel);
/* set par */
par->info = info;
/* set info */
line_length = ALIGN((var->xres_virtual * var->bits_per_pixel / 8),
crtc->line_pad);
info->pseudo_palette = &par->pseudo_palette[0];
info->screen_base = crtc->vScreen;
pr_debug("screen_base vaddr = %p\n", info->screen_base);
info->screen_size = line_length * var->yres_virtual;
info->flags = FBINFO_FLAG_DEFAULT | 0;
/* set info->fix */
fix->type = FB_TYPE_PACKED_PIXELS;
fix->type_aux = 0;
fix->xpanstep = crtc->xpanstep;
fix->ypanstep = crtc->ypanstep;
fix->ywrapstep = crtc->ywrapstep;
fix->accel = FB_ACCEL_SMI;
strlcpy(fix->id, fixId[index], sizeof(fix->id));
fix->smem_start = crtc->oScreen + sm750_dev->vidmem_start;
pr_info("fix->smem_start = %lx\n", fix->smem_start);
/*
* according to mmap experiment from user space application,
* fix->mmio_len should not larger than virtual size
* (xres_virtual x yres_virtual x ByPP)
* Below line maybe buggy when user mmap fb dev node and write
* data into the bound over virtual size
*/
fix->smem_len = crtc->vidmem_size;
pr_info("fix->smem_len = %x\n", fix->smem_len);
info->screen_size = fix->smem_len;
fix->line_length = line_length;
fix->mmio_start = sm750_dev->vidreg_start;
pr_info("fix->mmio_start = %lx\n", fix->mmio_start);
fix->mmio_len = sm750_dev->vidreg_size;
pr_info("fix->mmio_len = %x\n", fix->mmio_len);
switch (var->bits_per_pixel) {
case 8:
fix->visual = FB_VISUAL_PSEUDOCOLOR;
break;
case 16:
case 32:
fix->visual = FB_VISUAL_TRUECOLOR;
break;
}
/* set var */
var->activate = FB_ACTIVATE_NOW;
var->accel_flags = 0;
var->vmode = FB_VMODE_NONINTERLACED;
pr_debug("#1 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n",
info->cmap.start, info->cmap.len,
info->cmap.red, info->cmap.green, info->cmap.blue,
info->cmap.transp);
ret = fb_alloc_cmap(&info->cmap, 256, 0);
if (ret < 0) {
pr_err("Could not allocate memory for cmap.\n");
goto exit;
}
pr_debug("#2 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n",
info->cmap.start, info->cmap.len,
info->cmap.red, info->cmap.green, info->cmap.blue,
info->cmap.transp);
exit:
lynxfb_ops_check_var(var, info);
return ret;
}
/* chip specific g_option configuration routine */
static void sm750fb_setup(struct sm750_dev *sm750_dev, char *src)
{
char *opt;
int swap;
swap = 0;
sm750_dev->initParm.chip_clk = 0;
sm750_dev->initParm.mem_clk = 0;
sm750_dev->initParm.master_clk = 0;
sm750_dev->initParm.powerMode = 0;
sm750_dev->initParm.setAllEngOff = 0;
sm750_dev->initParm.resetMemory = 1;
/* defaultly turn g_hwcursor on for both view */
g_hwcursor = 3;
if (!src || !*src) {
pr_warn("no specific g_option.\n");
goto NO_PARAM;
}
while ((opt = strsep(&src, ":")) != NULL && *opt != 0) {
pr_info("opt=%s\n", opt);
pr_info("src=%s\n", src);
if (!strncmp(opt, "swap", strlen("swap")))
swap = 1;
else if (!strncmp(opt, "nocrt", strlen("nocrt")))
sm750_dev->nocrt = 1;
else if (!strncmp(opt, "36bit", strlen("36bit")))
sm750_dev->pnltype = sm750_doubleTFT;
else if (!strncmp(opt, "18bit", strlen("18bit")))
sm750_dev->pnltype = sm750_dualTFT;
else if (!strncmp(opt, "24bit", strlen("24bit")))
sm750_dev->pnltype = sm750_24TFT;
else if (!strncmp(opt, "nohwc0", strlen("nohwc0")))
g_hwcursor &= ~0x1;
else if (!strncmp(opt, "nohwc1", strlen("nohwc1")))
g_hwcursor &= ~0x2;
else if (!strncmp(opt, "nohwc", strlen("nohwc")))
g_hwcursor = 0;
else {
if (!g_fbmode[0]) {
g_fbmode[0] = opt;
pr_info("find fbmode0 : %s\n", g_fbmode[0]);
} else if (!g_fbmode[1]) {
g_fbmode[1] = opt;
pr_info("find fbmode1 : %s\n", g_fbmode[1]);
} else {
pr_warn("How many view you wann set?\n");
}
}
}
NO_PARAM:
if (sm750_dev->revid != SM750LE_REVISION_ID) {
if (sm750_dev->dual) {
if (swap)
sm750_dev->dataflow = sm750_dual_swap;
else
sm750_dev->dataflow = sm750_dual_normal;
} else {
if (swap)
sm750_dev->dataflow = sm750_simul_sec;
else
sm750_dev->dataflow = sm750_simul_pri;
}
} else {
/* SM750LE only have one crt channel */
sm750_dev->dataflow = sm750_simul_sec;
/* sm750le do not have complex attributes */
sm750_dev->nocrt = 0;
}
}
static int lynxfb_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct fb_info *info[] = {NULL, NULL};
struct sm750_dev *sm750_dev = NULL;
int fbidx;
/* enable device */
if (pci_enable_device(pdev)) {
pr_err("can not enable device.\n");
goto err_enable;
}
sm750_dev = kzalloc(sizeof(*sm750_dev), GFP_KERNEL);
if (!sm750_dev) {
pr_err("Could not allocate memory for share.\n");
goto err_share;
}
sm750_dev->fbinfo[0] = sm750_dev->fbinfo[1] = NULL;
sm750_dev->devid = pdev->device;
sm750_dev->revid = pdev->revision;
pr_info("share->revid = %02x\n", sm750_dev->revid);
sm750_dev->pdev = pdev;
sm750_dev->mtrr_off = g_nomtrr;
sm750_dev->mtrr.vram = 0;
sm750_dev->accel_off = g_noaccel;
sm750_dev->dual = g_dualview;
spin_lock_init(&sm750_dev->slock);
if (!sm750_dev->accel_off) {
/*
* hook deInit and 2d routines, notes that below hw_xxx
* routine can work on most of lynx chips
* if some chip need specific function,
* please hook it in smXXX_set_drv routine
*/
sm750_dev->accel.de_init = hw_de_init;
sm750_dev->accel.de_fillrect = hw_fillrect;
sm750_dev->accel.de_copyarea = hw_copyarea;
sm750_dev->accel.de_imageblit = hw_imageblit;
pr_info("enable 2d acceleration\n");
} else {
pr_info("disable 2d acceleration\n");
}
/* call chip specific setup routine */
sm750fb_setup(sm750_dev, g_settings);
/* call chip specific mmap routine */
if (hw_sm750_map(sm750_dev, pdev)) {
pr_err("Memory map failed\n");
goto err_map;
}
if (!sm750_dev->mtrr_off)
sm750_dev->mtrr.vram = arch_phys_wc_add(sm750_dev->vidmem_start,
sm750_dev->vidmem_size);
memset_io(sm750_dev->pvMem, 0, sm750_dev->vidmem_size);
pr_info("sm%3x mmio address = %p\n", sm750_dev->devid,
sm750_dev->pvReg);
pci_set_drvdata(pdev, sm750_dev);
/* call chipInit routine */
hw_sm750_inithw(sm750_dev, pdev);
/* allocate frame buffer info structor according to g_dualview */
fbidx = 0;
ALLOC_FB:
info[fbidx] = framebuffer_alloc(sizeof(struct lynxfb_par), &pdev->dev);
if (!info[fbidx]) {
pr_err("Could not allocate framebuffer #%d.\n", fbidx);
if (fbidx == 0)
goto err_info0_alloc;
else
goto err_info1_alloc;
} else {
struct lynxfb_par *par;
int errno;
pr_info("framebuffer #%d alloc okay\n", fbidx);
sm750_dev->fbinfo[fbidx] = info[fbidx];
par = info[fbidx]->par;
par->dev = sm750_dev;
/* set fb_info structure */
if (lynxfb_set_fbinfo(info[fbidx], fbidx)) {
pr_err("Failed to initial fb_info #%d.\n", fbidx);
if (fbidx == 0)
goto err_info0_set;
else
goto err_info1_set;
}
/* register frame buffer */
pr_info("Ready to register framebuffer #%d.\n", fbidx);
errno = register_framebuffer(info[fbidx]);
if (errno < 0) {
pr_err("Failed to register fb_info #%d. err %d\n",
fbidx,
errno);
if (fbidx == 0)
goto err_register0;
else
goto err_register1;
}
pr_info("Accomplished register framebuffer #%d.\n", fbidx);
}
/* no dual view by far */
fbidx++;
if (sm750_dev->dual && fbidx < 2)
goto ALLOC_FB;
return 0;
err_register1:
err_info1_set:
framebuffer_release(info[1]);
err_info1_alloc:
unregister_framebuffer(info[0]);
err_register0:
err_info0_set:
framebuffer_release(info[0]);
err_info0_alloc:
err_map:
kfree(sm750_dev);
err_share:
err_enable:
return -ENODEV;
}
static void lynxfb_pci_remove(struct pci_dev *pdev)
{
struct fb_info *info;
struct sm750_dev *sm750_dev;
struct lynxfb_par *par;
int cnt;
cnt = 2;
sm750_dev = pci_get_drvdata(pdev);
while (cnt-- > 0) {
info = sm750_dev->fbinfo[cnt];
if (!info)
continue;
par = info->par;
unregister_framebuffer(info);
/* release frame buffer */
framebuffer_release(info);
}
arch_phys_wc_del(sm750_dev->mtrr.vram);
iounmap(sm750_dev->pvReg);
iounmap(sm750_dev->pvMem);
kfree(g_settings);
kfree(sm750_dev);
pci_set_drvdata(pdev, NULL);
}
static int __init lynxfb_setup(char *options)
{
int len;
char *opt, *tmp;
if (!options || !*options) {
pr_warn("no options.\n");
return 0;
}
pr_info("options:%s\n", options);
len = strlen(options) + 1;
g_settings = kzalloc(len, GFP_KERNEL);
if (!g_settings)
return -ENOMEM;
tmp = g_settings;
/*
* Notes:
* char * strsep(char **s,const char * ct);
* @s: the string to be searched
* @ct :the characters to search for
*
* strsep() updates @options to pointer after the first found token
* it also returns the pointer ahead the token.
*/
while ((opt = strsep(&options, ":")) != NULL) {
/* options that mean for any lynx chips are configured here */
if (!strncmp(opt, "noaccel", strlen("noaccel")))
g_noaccel = 1;
else if (!strncmp(opt, "nomtrr", strlen("nomtrr")))
g_nomtrr = 1;
else if (!strncmp(opt, "dual", strlen("dual")))
g_dualview = 1;
else {
strcat(tmp, opt);
tmp += strlen(opt);
if (options != NULL)
*tmp++ = ':';
else
*tmp++ = 0;
}
}
/* misc g_settings are transport to chip specific routines */
pr_info("parameter left for chip specific analysis:%s\n", g_settings);
return 0;
}
static struct pci_device_id smi_pci_table[] = {
{ PCI_DEVICE(0x126f, 0x0750), },
{0,}
};
MODULE_DEVICE_TABLE(pci, smi_pci_table);
static struct pci_driver lynxfb_driver = {
.name = "sm750fb",
.id_table = smi_pci_table,
.probe = lynxfb_pci_probe,
.remove = lynxfb_pci_remove,
#ifdef CONFIG_PM
.suspend = lynxfb_suspend,
.resume = lynxfb_resume,
#endif
};
static int __init lynxfb_init(void)
{
char *option;
int ret;
#ifdef MODULE
option = g_option;
#else
if (fb_get_options("sm750fb", &option))
return -ENODEV;
#endif
lynxfb_setup(option);
ret = pci_register_driver(&lynxfb_driver);
return ret;
}
module_init(lynxfb_init);
static void __exit lynxfb_exit(void)
{
pci_unregister_driver(&lynxfb_driver);
}
module_exit(lynxfb_exit);
module_param(g_option, charp, S_IRUGO);
MODULE_PARM_DESC(g_option,
"\n\t\tCommon options:\n"
"\t\tnoaccel:disable 2d capabilities\n"
"\t\tnomtrr:disable MTRR attribute for video memory\n"
"\t\tdualview:dual frame buffer feature enabled\n"
"\t\tnohwc:disable hardware cursor\n"
"\t\tUsual example:\n"
"\t\tinsmod ./sm750fb.ko g_option=\"noaccel,nohwc,1280x1024-8@60\"\n"
);
MODULE_AUTHOR("monk liu <monk.liu@siliconmotion.com>");
MODULE_AUTHOR("Sudip Mukherjee <sudip@vectorindia.org>");
MODULE_DESCRIPTION("Frame buffer driver for SM750 chipset");
MODULE_LICENSE("GPL v2");