// SPDX-License-Identifier: GPL-2.0
#include <linux/aperture.h>
#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/console.h>
#include "sm750.h"
#include "sm750_accel.h"
#include "sm750_cursor.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 = "1024x768-32@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->max_w ||
fbcursor->image.height > cursor->max_h ||
fbcursor->image.depth > 1) {
return -ENXIO;
}
sm750_hw_cursor_disable(cursor);
if (fbcursor->set & FB_CUR_SETSIZE)
sm750_hw_cursor_setSize(cursor,
fbcursor->image.width,
fbcursor->image.height);
if (fbcursor->set & FB_CUR_SETPOS)
sm750_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);
sm750_hw_cursor_setColor(cursor, fg, bg);
}
if (fbcursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
sm750_hw_cursor_setData(cursor,
fbcursor->rop,
fbcursor->image.data,
fbcursor->mask);
}
if (fbcursor->enable)
sm750_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.o_screen;
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)
* since they fb_count could change during the lifetime of
* this lock, we are holding it for all cases.
*/
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);
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.o_screen;
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)
* since they fb_count could change during the lifetime of
* this lock, we are holding it for all cases.
*/
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);
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.o_screen;
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)
* since they fb_count could change during the lifetime of
* this lock, we are holding it for all cases.
*/
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);
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 inline void lynxfb_set_visual_mode(struct fb_info *info)
{
switch (info->var.bits_per_pixel) {
case 8:
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
break;
case 16:
case 24:
case 32:
info->fix.visual = FB_VISUAL_TRUECOLOR;
break;
default:
break;
}
}
static inline int lynxfb_set_color_offsets(struct fb_info *info)
{
lynxfb_set_visual_mode(info);
switch (info->var.bits_per_pixel) {
case 8:
info->var.red.offset = 0;
info->var.red.length = 8;
info->var.green.offset = 0;
info->var.green.length = 8;
info->var.blue.offset = 0;
info->var.blue.length = 8;
info->var.transp.length = 0;
info->var.transp.offset = 0;
break;
case 16:
info->var.red.offset = 11;
info->var.red.length = 5;
info->var.green.offset = 5;
info->var.green.length = 6;
info->var.blue.offset = 0;
info->var.blue.length = 5;
info->var.transp.length = 0;
info->var.transp.offset = 0;
break;
case 24:
case 32:
info->var.red.offset = 16;
info->var.red.length = 8;
info->var.green.offset = 8;
info->var.green.length = 8;
info->var.blue.offset = 0;
info->var.blue.length = 8;
break;
default:
return -EINVAL;
}
return 0;
}
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 structure 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
*/
ret = lynxfb_set_color_offsets(info);
var->height = -1;
var->width = -1;
var->accel_flags = 0;/*FB_ACCELF_TEXT;*/
if (ret) {
pr_err("bpp %d not supported\n", var->bits_per_pixel);
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;
}
static int __maybe_unused lynxfb_suspend(struct device *dev)
{
struct fb_info *info;
struct sm750_dev *sm750_dev;
sm750_dev = dev_get_drvdata(dev);
console_lock();
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);
console_unlock();
return 0;
}
static int __maybe_unused lynxfb_resume(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct fb_info *info;
struct sm750_dev *sm750_dev;
struct lynxfb_par *par;
struct lynxfb_crtc *crtc;
struct lynx_cursor *cursor;
sm750_dev = pci_get_drvdata(pdev);
console_lock();
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->v_screen, 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->v_screen, 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 0;
}
static int lynxfb_ops_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
int ret;
struct lynxfb_par *par;
struct lynxfb_crtc *crtc;
resource_size_t request;
ret = 0;
par = info->par;
crtc = &par->crtc;
pr_debug("check var:%dx%d-%d\n",
var->xres,
var->yres,
var->bits_per_pixel);
ret = lynxfb_set_color_offsets(info);
if (ret) {
pr_err("bpp %d not supported\n", var->bits_per_pixel);
return ret;
}
var->height = -1;
var->width = -1;
var->accel_flags = 0;/* FB_ACCELF_TEXT; */
/* check if current fb's video memory big enough 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 int regno,
unsigned int red,
unsigned int green,
unsigned int blue,
unsigned int 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->vidmem_size;
if (sm750_dev->fb_count > 1)
crtc->vidmem_size >>= 1;
/* 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->o_screen = 0;
crtc->v_screen = sm750_dev->pvMem;
pr_info("use simul primary mode\n");
break;
case sm750_simul_sec:
output->paths = sm750_pnc;
crtc->channel = sm750_secondary;
crtc->o_screen = 0;
crtc->v_screen = sm750_dev->pvMem;
break;
case sm750_dual_normal:
if (par->index == 0) {
output->paths = sm750_panel;
crtc->channel = sm750_primary;
crtc->o_screen = 0;
crtc->v_screen = sm750_dev->pvMem;
} else {
output->paths = sm750_crt;
crtc->channel = sm750_secondary;
/* not consider of padding stuffs for o_screen,need fix */
crtc->o_screen = sm750_dev->vidmem_size >> 1;
crtc->v_screen = sm750_dev->pvMem + crtc->o_screen;
}
break;
case sm750_dual_swap:
if (par->index == 0) {
output->paths = sm750_panel;
crtc->channel = sm750_secondary;
crtc->o_screen = 0;
crtc->v_screen = sm750_dev->pvMem;
} else {
output->paths = sm750_crt;
crtc->channel = sm750_primary;
/* not consider of padding stuffs for o_screen,
* need fix
*/
crtc->o_screen = sm750_dev->vidmem_size >> 1;
crtc->v_screen = sm750_dev->pvMem + crtc->o_screen;
}
break;
default:
ret = -EINVAL;
}
return ret;
}
static const struct fb_ops lynxfb_ops = {
.owner = THIS_MODULE,
FB_DEFAULT_IOMEM_OPS,
.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_pan_display = lynxfb_ops_pan_display,
};
static const struct fb_ops lynxfb_ops_with_cursor = {
.owner = THIS_MODULE,
FB_DEFAULT_IOMEM_OPS,
.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_pan_display = lynxfb_ops_pan_display,
.fb_cursor = lynxfb_ops_cursor,
};
static const struct fb_ops lynxfb_ops_accel = {
.owner = THIS_MODULE,
__FB_DEFAULT_IOMEM_OPS_RDWR,
.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_pan_display = lynxfb_ops_pan_display,
.fb_fillrect = lynxfb_ops_fillrect,
.fb_copyarea = lynxfb_ops_copyarea,
.fb_imageblit = lynxfb_ops_imageblit,
__FB_DEFAULT_IOMEM_OPS_MMAP,
};
static const struct fb_ops lynxfb_ops_accel_with_cursor = {
.owner = THIS_MODULE,
__FB_DEFAULT_IOMEM_OPS_RDWR,
.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_pan_display = lynxfb_ops_pan_display,
.fb_fillrect = lynxfb_ops_fillrect,
.fb_copyarea = lynxfb_ops_copyarea,
.fb_imageblit = lynxfb_ops_imageblit,
.fb_cursor = lynxfb_ops_cursor,
__FB_DEFAULT_IOMEM_OPS_MMAP,
};
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 * const 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);
/*
* set current cursor variable and proc pointer,
* must be set after crtc member initialized
*/
crtc->cursor.offset = crtc->o_screen + 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.max_h = 64;
crtc->cursor.max_w = 64;
crtc->cursor.size = crtc->cursor.max_h * crtc->cursor.max_w * 2 / 8;
crtc->cursor.vstart = sm750_dev->pvMem + crtc->cursor.offset;
memset_io(crtc->cursor.vstart, 0, crtc->cursor.size);
if (!g_hwcursor)
sm750_hw_cursor_disable(&crtc->cursor);
/* set info->fbops, must be set before fb_find_mode */
if (!sm750_dev->accel_off) {
/* use 2d acceleration */
if (!g_hwcursor)
info->fbops = &lynxfb_ops_accel;
else
info->fbops = &lynxfb_ops_accel_with_cursor;
} else {
if (!g_hwcursor)
info->fbops = &lynxfb_ops;
else
info->fbops = &lynxfb_ops_with_cursor;
}
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->v_screen;
pr_debug("screen_base vaddr = %p\n", info->screen_base);
info->screen_size = line_length * var->yres_virtual;
/* 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;
strscpy(fix->id, fixId[index], sizeof(fix->id));
fix->smem_start = crtc->o_screen + 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);
lynxfb_set_visual_mode(info);
/* 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) {
dev_warn(&sm750_dev->pdev->dev, "no specific g_option.\n");
goto NO_PARAM;
}
while ((opt = strsep(&src, ":")) != NULL && *opt != 0) {
dev_info(&sm750_dev->pdev->dev, "opt=%s\n", opt);
dev_info(&sm750_dev->pdev->dev, "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;
dev_info(&sm750_dev->pdev->dev,
"find fbmode0 : %s\n", g_fbmode[0]);
} else if (!g_fbmode[1]) {
g_fbmode[1] = opt;
dev_info(&sm750_dev->pdev->dev,
"find fbmode1 : %s\n", g_fbmode[1]);
} else {
dev_warn(&sm750_dev->pdev->dev, "How many view you wann set?\n");
}
}
}
NO_PARAM:
if (sm750_dev->revid != SM750LE_REVISION_ID) {
if (sm750_dev->fb_count > 1) {
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 void sm750fb_framebuffer_release(struct sm750_dev *sm750_dev)
{
struct fb_info *fb_info;
while (sm750_dev->fb_count) {
fb_info = sm750_dev->fbinfo[sm750_dev->fb_count - 1];
unregister_framebuffer(fb_info);
framebuffer_release(fb_info);
sm750_dev->fb_count--;
}
}
static int sm750fb_framebuffer_alloc(struct sm750_dev *sm750_dev, int fbidx)
{
struct fb_info *fb_info;
struct lynxfb_par *par;
int err;
fb_info = framebuffer_alloc(sizeof(struct lynxfb_par),
&sm750_dev->pdev->dev);
if (!fb_info)
return -ENOMEM;
sm750_dev->fbinfo[fbidx] = fb_info;
par = fb_info->par;
par->dev = sm750_dev;
err = lynxfb_set_fbinfo(fb_info, fbidx);
if (err)
goto release_fb;
err = register_framebuffer(fb_info);
if (err < 0)
goto release_fb;
sm750_dev->fb_count++;
return 0;
release_fb:
framebuffer_release(fb_info);
return err;
}
static int lynxfb_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct sm750_dev *sm750_dev = NULL;
int max_fb;
int fbidx;
int err;
err = aperture_remove_conflicting_pci_devices(pdev, "sm750_fb1");
if (err)
return err;
/* enable device */
err = pcim_enable_device(pdev);
if (err)
return err;
err = -ENOMEM;
sm750_dev = devm_kzalloc(&pdev->dev, sizeof(*sm750_dev), GFP_KERNEL);
if (!sm750_dev)
return err;
sm750_dev->fbinfo[0] = NULL;
sm750_dev->fbinfo[1] = NULL;
sm750_dev->devid = pdev->device;
sm750_dev->revid = pdev->revision;
sm750_dev->pdev = pdev;
sm750_dev->mtrr_off = g_nomtrr;
sm750_dev->mtrr.vram = 0;
sm750_dev->accel_off = g_noaccel;
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 = sm750_hw_de_init;
sm750_dev->accel.de_fillrect = sm750_hw_fillrect;
sm750_dev->accel.de_copyarea = sm750_hw_copyarea;
sm750_dev->accel.de_imageblit = sm750_hw_imageblit;
}
/* call chip specific setup routine */
sm750fb_setup(sm750_dev, g_settings);
/* call chip specific mmap routine */
err = hw_sm750_map(sm750_dev, pdev);
if (err)
return err;
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);
pci_set_drvdata(pdev, sm750_dev);
/* call chipInit routine */
hw_sm750_inithw(sm750_dev, pdev);
/* allocate frame buffer info structures according to g_dualview */
max_fb = g_dualview ? 2 : 1;
for (fbidx = 0; fbidx < max_fb; fbidx++) {
err = sm750fb_framebuffer_alloc(sm750_dev, fbidx);
if (err)
goto release_fb;
}
return 0;
release_fb:
sm750fb_framebuffer_release(sm750_dev);
return err;
}
static void lynxfb_pci_remove(struct pci_dev *pdev)
{
struct sm750_dev *sm750_dev;
sm750_dev = pci_get_drvdata(pdev);
sm750fb_framebuffer_release(sm750_dev);
arch_phys_wc_del(sm750_dev->mtrr.vram);
iounmap(sm750_dev->pvReg);
iounmap(sm750_dev->pvMem);
kfree(g_settings);
}
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)
*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 const struct pci_device_id smi_pci_table[] = {
{ PCI_DEVICE(0x126f, 0x0750), },
{0,}
};
MODULE_DEVICE_TABLE(pci, smi_pci_table);
static SIMPLE_DEV_PM_OPS(lynxfb_pm_ops, lynxfb_suspend, lynxfb_resume);
static struct pci_driver lynxfb_driver = {
.name = "sm750fb",
.id_table = smi_pci_table,
.probe = lynxfb_pci_probe,
.remove = lynxfb_pci_remove,
.driver.pm = &lynxfb_pm_ops,
};
static int __init lynxfb_init(void)
{
char *option;
if (fb_modesetting_disabled("sm750fb"))
return -ENODEV;
#ifdef MODULE
option = g_option;
#else
if (fb_get_options("sm750fb", &option))
return -ENODEV;
#endif
lynxfb_setup(option);
return pci_register_driver(&lynxfb_driver);
}
module_init(lynxfb_init);
static void __exit lynxfb_exit(void)
{
pci_unregister_driver(&lynxfb_driver);
}
module_exit(lynxfb_exit);
module_param(g_option, charp, 0444);
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 <[email protected]>");
MODULE_AUTHOR("Sudip Mukherjee <[email protected]>");
MODULE_DESCRIPTION("Frame buffer driver for SM750 chipset");
MODULE_LICENSE("Dual BSD/GPL");
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