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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/drivers/video/ps3fb.c

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30 KiB
C
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/*
* linux/drivers/video/ps3fb.c -- PS3 GPU frame buffer device
*
* Copyright (C) 2006 Sony Computer Entertainment Inc.
* Copyright 2006, 2007 Sony Corporation
*
* This file is based on :
*
* linux/drivers/video/vfb.c -- Virtual frame buffer device
*
* Copyright (C) 2002 James Simmons
*
* Copyright (C) 1997 Geert Uytterhoeven
*
* 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.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/console.h>
#include <linux/ioctl.h>
#include <linux/notifier.h>
#include <linux/reboot.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <asm/uaccess.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <asm/time.h>
#include <asm/abs_addr.h>
#include <asm/lv1call.h>
#include <asm/ps3av.h>
#include <asm/ps3fb.h>
#include <asm/ps3.h>
#ifdef PS3FB_DEBUG
#define DPRINTK(fmt, args...) printk("%s: " fmt, __func__ , ##args)
#else
#define DPRINTK(fmt, args...)
#endif
#define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC 0x101
#define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP 0x102
#define L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP 0x600
#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT 0x601
#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT_SYNC 0x602
#define L1GPU_FB_BLIT_WAIT_FOR_COMPLETION (1ULL << 32)
#define L1GPU_DISPLAY_SYNC_HSYNC 1
#define L1GPU_DISPLAY_SYNC_VSYNC 2
#define DDR_SIZE (0) /* used no ddr */
#define GPU_OFFSET (64 * 1024)
#define GPU_IOIF (0x0d000000UL)
#define PS3FB_FULL_MODE_BIT 0x80
#define GPU_INTR_STATUS_VSYNC_0 0 /* vsync on head A */
#define GPU_INTR_STATUS_VSYNC_1 1 /* vsync on head B */
#define GPU_INTR_STATUS_FLIP_0 3 /* flip head A */
#define GPU_INTR_STATUS_FLIP_1 4 /* flip head B */
#define GPU_INTR_STATUS_QUEUE_0 5 /* queue head A */
#define GPU_INTR_STATUS_QUEUE_1 6 /* queue head B */
#define GPU_DRIVER_INFO_VERSION 0x211
/* gpu internals */
struct display_head {
u64 be_time_stamp;
u32 status;
u32 offset;
u32 res1;
u32 res2;
u32 field;
u32 reserved1;
u64 res3;
u32 raster;
u64 vblank_count;
u32 field_vsync;
u32 reserved2;
};
struct gpu_irq {
u32 irq_outlet;
u32 status;
u32 mask;
u32 video_cause;
u32 graph_cause;
u32 user_cause;
u32 res1;
u64 res2;
u32 reserved[4];
};
struct gpu_driver_info {
u32 version_driver;
u32 version_gpu;
u32 memory_size;
u32 hardware_channel;
u32 nvcore_frequency;
u32 memory_frequency;
u32 reserved[1063];
struct display_head display_head[8];
struct gpu_irq irq;
};
struct ps3fb_priv {
unsigned int irq_no;
void *dev;
u64 context_handle, memory_handle;
void *xdr_ea;
struct gpu_driver_info *dinfo;
u32 res_index;
u64 vblank_count; /* frame count */
wait_queue_head_t wait_vsync;
u32 num_frames; /* num of frame buffers */
atomic_t ext_flip; /* on/off flip with vsync */
atomic_t f_count; /* fb_open count */
int is_blanked;
int is_kicked;
struct task_struct *task;
};
static struct ps3fb_priv ps3fb;
struct ps3fb_res_table {
u32 xres;
u32 yres;
u32 xoff;
u32 yoff;
u32 type;
};
#define PS3FB_RES_FULL 1
static const struct ps3fb_res_table ps3fb_res[] = {
/* res_x,y margin_x,y full */
{ 720, 480, 72, 48 , 0},
{ 720, 576, 72, 58 , 0},
{ 1280, 720, 78, 38 , 0},
{ 1920, 1080, 116, 58 , 0},
/* full mode */
{ 720, 480, 0, 0 , PS3FB_RES_FULL},
{ 720, 576, 0, 0 , PS3FB_RES_FULL},
{ 1280, 720, 0, 0 , PS3FB_RES_FULL},
{ 1920, 1080, 0, 0 , PS3FB_RES_FULL},
/* vesa: normally full mode */
{ 1280, 768, 0, 0 , 0},
{ 1280, 1024, 0, 0 , 0},
{ 1920, 1200, 0, 0 , 0},
{ 0, 0, 0, 0 , 0} };
/* default resolution */
#define GPU_RES_INDEX 0 /* 720 x 480 */
static const struct fb_videomode ps3fb_modedb[] = {
/* 60 Hz broadcast modes (modes "1" to "5") */
{
/* 480i */
"480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
}, {
/* 480p */
"480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
}, {
/* 720p */
"720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
}, {
/* 1080i */
"1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
}, {
/* 1080p */
"1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
},
/* 50 Hz broadcast modes (modes "6" to "10") */
{
/* 576i */
"576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
}, {
/* 576p */
"576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
}, {
/* 720p */
"720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
}, {
/* 1080 */
"1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
}, {
/* 1080p */
"1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
},
/* VESA modes (modes "11" to "13") */
{
/* WXGA */
"wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
0, FB_VMODE_NONINTERLACED,
FB_MODE_IS_VESA
}, {
/* SXGA */
"sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
FB_MODE_IS_VESA
}, {
/* WUXGA */
"wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
FB_MODE_IS_VESA
},
/* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
{
/* 480if */
"480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
}, {
/* 480pf */
"480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
}, {
/* 720pf */
"720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
}, {
/* 1080if */
"1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
}, {
/* 1080pf */
"1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
},
/* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
{
/* 576if */
"576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
}, {
/* 576pf */
"576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
}, {
/* 720pf */
"720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
}, {
/* 1080if */
"1080f", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
}, {
/* 1080pf */
"1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
}
};
#define HEAD_A
#define HEAD_B
#define X_OFF(i) (ps3fb_res[i].xoff) /* left/right margin (pixel) */
#define Y_OFF(i) (ps3fb_res[i].yoff) /* top/bottom margin (pixel) */
#define WIDTH(i) (ps3fb_res[i].xres) /* width of FB */
#define HEIGHT(i) (ps3fb_res[i].yres) /* height of FB */
#define BPP 4 /* number of bytes per pixel */
#define VP_OFF(i) (WIDTH(i) * Y_OFF(i) * BPP + X_OFF(i) * BPP)
#define FB_OFF(i) (GPU_OFFSET - VP_OFF(i) % GPU_OFFSET)
static int ps3fb_mode;
module_param(ps3fb_mode, bool, 0);
static char *mode_option __initdata;
static int ps3fb_get_res_table(u32 xres, u32 yres)
{
int full_mode;
unsigned int i;
u32 x, y, f;
full_mode = (ps3fb_mode & PS3FB_FULL_MODE_BIT) ? PS3FB_RES_FULL : 0;
for (i = 0;; i++) {
x = ps3fb_res[i].xres;
y = ps3fb_res[i].yres;
f = ps3fb_res[i].type;
if (!x) {
DPRINTK("ERROR: ps3fb_get_res_table()\n");
return -1;
}
if (full_mode == PS3FB_RES_FULL && f != PS3FB_RES_FULL)
continue;
if (x == xres && (yres == 0 || y == yres))
break;
x = x - 2 * ps3fb_res[i].xoff;
y = y - 2 * ps3fb_res[i].yoff;
if (x == xres && (yres == 0 || y == yres))
break;
}
return i;
}
static unsigned int ps3fb_find_mode(const struct fb_var_screeninfo *var,
u32 *line_length)
{
unsigned int i, mode;
for (i = 0; i < ARRAY_SIZE(ps3fb_modedb); i++)
if (var->xres == ps3fb_modedb[i].xres &&
var->yres == ps3fb_modedb[i].yres &&
var->pixclock == ps3fb_modedb[i].pixclock &&
var->hsync_len == ps3fb_modedb[i].hsync_len &&
var->vsync_len == ps3fb_modedb[i].vsync_len &&
var->left_margin == ps3fb_modedb[i].left_margin &&
var->right_margin == ps3fb_modedb[i].right_margin &&
var->upper_margin == ps3fb_modedb[i].upper_margin &&
var->lower_margin == ps3fb_modedb[i].lower_margin &&
var->sync == ps3fb_modedb[i].sync &&
(var->vmode & FB_VMODE_MASK) == ps3fb_modedb[i].vmode) {
/* Cropped broadcast modes use the full line_length */
*line_length =
ps3fb_modedb[i < 10 ? i + 13 : i].xres * 4;
/* Full broadcast modes have the full mode bit set */
mode = i > 12 ? (i - 12) | PS3FB_FULL_MODE_BIT : i + 1;
DPRINTK("ps3fb_find_mode: mode %u\n", mode);
return mode;
}
DPRINTK("ps3fb_find_mode: mode not found\n");
return 0;
}
static const struct fb_videomode *ps3fb_default_mode(void)
{
u32 mode = ps3fb_mode & PS3AV_MODE_MASK;
u32 flags;
if (mode < 1 || mode > 13)
return NULL;
flags = ps3fb_mode & ~PS3AV_MODE_MASK;
if (mode <= 10 && flags & PS3FB_FULL_MODE_BIT) {
/* Full broadcast mode */
return &ps3fb_modedb[mode + 12];
}
return &ps3fb_modedb[mode - 1];
}
static int ps3fb_sync(u32 frame)
{
int i, status;
u32 xres, yres;
u64 fb_ioif, offset;
i = ps3fb.res_index;
xres = ps3fb_res[i].xres;
yres = ps3fb_res[i].yres;
if (frame > ps3fb.num_frames - 1) {
printk(KERN_WARNING "%s: invalid frame number (%u)\n",
__func__, frame);
return -EINVAL;
}
offset = xres * yres * BPP * frame;
fb_ioif = GPU_IOIF + FB_OFF(i) + offset;
status = lv1_gpu_context_attribute(ps3fb.context_handle,
L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
offset, fb_ioif,
L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
(xres << 16) | yres,
xres * BPP); /* line_length */
if (status)
printk(KERN_ERR
"%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
__func__, status);
#ifdef HEAD_A
status = lv1_gpu_context_attribute(ps3fb.context_handle,
L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
0, offset, 0, 0);
if (status)
printk(KERN_ERR
"%s: lv1_gpu_context_attribute FLIP failed: %d\n",
__func__, status);
#endif
#ifdef HEAD_B
status = lv1_gpu_context_attribute(ps3fb.context_handle,
L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
1, offset, 0, 0);
if (status)
printk(KERN_ERR
"%s: lv1_gpu_context_attribute FLIP failed: %d\n",
__func__, status);
#endif
return 0;
}
static int ps3fb_open(struct fb_info *info, int user)
{
atomic_inc(&ps3fb.f_count);
return 0;
}
static int ps3fb_release(struct fb_info *info, int user)
{
if (atomic_dec_and_test(&ps3fb.f_count)) {
if (atomic_read(&ps3fb.ext_flip)) {
atomic_set(&ps3fb.ext_flip, 0);
ps3fb_sync(0); /* single buffer */
}
}
return 0;
}
/*
* Setting the video mode has been split into two parts.
* First part, xxxfb_check_var, must not write anything
* to hardware, it should only verify and adjust var.
* This means it doesn't alter par but it does use hardware
* data from it to check this var.
*/
static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
u32 line_length;
int mode;
int i;
DPRINTK("var->xres:%u info->var.xres:%u\n", var->xres, info->var.xres);
DPRINTK("var->yres:%u info->var.yres:%u\n", var->yres, info->var.yres);
/* FIXME For now we do exact matches only */
mode = ps3fb_find_mode(var, &line_length);
if (!mode)
return -EINVAL;
/*
* FB_VMODE_CONUPDATE and FB_VMODE_SMOOTH_XPAN are equal!
* as FB_VMODE_SMOOTH_XPAN is only used internally
*/
if (var->vmode & FB_VMODE_CONUPDATE) {
var->vmode |= FB_VMODE_YWRAP;
var->xoffset = info->var.xoffset;
var->yoffset = info->var.yoffset;
}
/* Virtual screen and panning are not supported */
if (var->xres_virtual > var->xres || var->yres_virtual > var->yres ||
var->xoffset || var->yoffset) {
DPRINTK("Virtual screen and panning are not supported\n");
return -EINVAL;
}
var->xres_virtual = var->xres;
var->yres_virtual = var->yres;
/* We support ARGB8888 only */
if (var->bits_per_pixel > 32 || var->grayscale ||
var->red.offset > 16 || var->green.offset > 8 ||
var->blue.offset > 0 || var->transp.offset > 24 ||
var->red.length > 8 || var->green.length > 8 ||
var->blue.length > 8 || var->transp.length > 8 ||
var->red.msb_right || var->green.msb_right ||
var->blue.msb_right || var->transp.msb_right || var->nonstd) {
DPRINTK("We support ARGB8888 only\n");
return -EINVAL;
}
var->bits_per_pixel = 32;
var->red.offset = 16;
var->green.offset = 8;
var->blue.offset = 0;
var->transp.offset = 24;
var->red.length = 8;
var->green.length = 8;
var->blue.length = 8;
var->transp.length = 8;
var->red.msb_right = 0;
var->green.msb_right = 0;
var->blue.msb_right = 0;
var->transp.msb_right = 0;
/* Rotation is not supported */
if (var->rotate) {
DPRINTK("Rotation is not supported\n");
return -EINVAL;
}
/* Memory limit */
i = ps3fb_get_res_table(var->xres, var->yres);
if (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP > ps3fb_videomemory.size) {
DPRINTK("Not enough memory\n");
return -ENOMEM;
}
var->height = -1;
var->width = -1;
return 0;
}
/*
* This routine actually sets the video mode.
*/
static int ps3fb_set_par(struct fb_info *info)
{
unsigned int mode;
int i;
unsigned long offset;
static int first = 1;
DPRINTK("xres:%d xv:%d yres:%d yv:%d clock:%d\n",
info->var.xres, info->var.xres_virtual,
info->var.yres, info->var.yres_virtual, info->var.pixclock);
i = ps3fb_get_res_table(info->var.xres, info->var.yres);
ps3fb.res_index = i;
mode = ps3fb_find_mode(&info->var, &info->fix.line_length);
if (!mode)
return -EINVAL;
offset = FB_OFF(i) + VP_OFF(i);
info->fix.smem_len = ps3fb_videomemory.size - offset;
info->screen_base = (char __iomem *)ps3fb.xdr_ea + offset;
memset(ps3fb.xdr_ea, 0, ps3fb_videomemory.size);
ps3fb.num_frames = ps3fb_videomemory.size/
(ps3fb_res[i].xres*ps3fb_res[i].yres*BPP);
/* Keep the special bits we cannot set using fb_var_screeninfo */
ps3fb_mode = (ps3fb_mode & ~PS3AV_MODE_MASK) | mode;
if (ps3av_set_video_mode(ps3fb_mode, first))
return -EINVAL;
first = 0;
return 0;
}
/*
* Set a single color register. The values supplied are already
* rounded down to the hardware's capabilities (according to the
* entries in the var structure). Return != 0 for invalid regno.
*/
static int ps3fb_setcolreg(unsigned int regno, unsigned int red,
unsigned int green, unsigned int blue,
unsigned int transp, struct fb_info *info)
{
if (regno >= 16)
return 1;
red >>= 8;
green >>= 8;
blue >>= 8;
transp >>= 8;
((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 |
green << 8 | blue;
return 0;
}
/*
* As we have a virtual frame buffer, we need our own mmap function
*/
static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
{
unsigned long size, offset;
int i;
i = ps3fb_get_res_table(info->var.xres, info->var.yres);
if (i == -1)
return -EINVAL;
size = vma->vm_end - vma->vm_start;
offset = vma->vm_pgoff << PAGE_SHIFT;
if (offset + size > info->fix.smem_len)
return -EINVAL;
offset += info->fix.smem_start + FB_OFF(i) + VP_OFF(i);
if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
size, vma->vm_page_prot))
return -EAGAIN;
printk(KERN_DEBUG "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n", offset,
vma->vm_start);
return 0;
}
/*
* Blank the display
*/
static int ps3fb_blank(int blank, struct fb_info *info)
{
int retval;
DPRINTK("%s: blank:%d\n", __func__, blank);
switch (blank) {
case FB_BLANK_POWERDOWN:
case FB_BLANK_HSYNC_SUSPEND:
case FB_BLANK_VSYNC_SUSPEND:
case FB_BLANK_NORMAL:
retval = ps3av_video_mute(1); /* mute on */
if (!retval)
ps3fb.is_blanked = 1;
break;
default: /* unblank */
retval = ps3av_video_mute(0); /* mute off */
if (!retval)
ps3fb.is_blanked = 0;
break;
}
return retval;
}
static int ps3fb_get_vblank(struct fb_vblank *vblank)
{
memset(vblank, 0, sizeof(&vblank));
vblank->flags = FB_VBLANK_HAVE_VSYNC;
return 0;
}
int ps3fb_wait_for_vsync(u32 crtc)
{
int ret;
u64 count;
count = ps3fb.vblank_count;
ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
count != ps3fb.vblank_count,
HZ / 10);
if (!ret)
return -ETIMEDOUT;
return 0;
}
EXPORT_SYMBOL_GPL(ps3fb_wait_for_vsync);
void ps3fb_flip_ctl(int on)
{
if (on)
atomic_dec_if_positive(&ps3fb.ext_flip);
else
atomic_inc(&ps3fb.ext_flip);
}
EXPORT_SYMBOL_GPL(ps3fb_flip_ctl);
/*
* ioctl
*/
static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
unsigned long arg)
{
void __user *argp = (void __user *)arg;
u32 val, old_mode;
int retval = -EFAULT;
switch (cmd) {
case FBIOGET_VBLANK:
{
struct fb_vblank vblank;
DPRINTK("FBIOGET_VBLANK:\n");
retval = ps3fb_get_vblank(&vblank);
if (retval)
break;
if (copy_to_user(argp, &vblank, sizeof(vblank)))
retval = -EFAULT;
break;
}
case FBIO_WAITFORVSYNC:
{
u32 crt;
DPRINTK("FBIO_WAITFORVSYNC:\n");
if (get_user(crt, (u32 __user *) arg))
break;
retval = ps3fb_wait_for_vsync(crt);
break;
}
case PS3FB_IOCTL_SETMODE:
{
const struct fb_videomode *mode;
struct fb_var_screeninfo var;
if (copy_from_user(&val, argp, sizeof(val)))
break;
if (!(val & PS3AV_MODE_MASK)) {
u32 id = ps3av_get_auto_mode(0);
if (id > 0)
val = (val & ~PS3AV_MODE_MASK) | id;
}
DPRINTK("PS3FB_IOCTL_SETMODE:%x\n", val);
retval = -EINVAL;
old_mode = ps3fb_mode;
ps3fb_mode = val;
mode = ps3fb_default_mode();
if (mode) {
var = info->var;
fb_videomode_to_var(&var, mode);
acquire_console_sem();
info->flags |= FBINFO_MISC_USEREVENT;
/* Force, in case only special bits changed */
var.activate |= FB_ACTIVATE_FORCE;
retval = fb_set_var(info, &var);
info->flags &= ~FBINFO_MISC_USEREVENT;
release_console_sem();
}
if (retval)
ps3fb_mode = old_mode;
break;
}
case PS3FB_IOCTL_GETMODE:
val = ps3av_get_mode();
DPRINTK("PS3FB_IOCTL_GETMODE:%x\n", val);
if (!copy_to_user(argp, &val, sizeof(val)))
retval = 0;
break;
case PS3FB_IOCTL_SCREENINFO:
{
struct ps3fb_ioctl_res res;
int i = ps3fb.res_index;
DPRINTK("PS3FB_IOCTL_SCREENINFO:\n");
res.xres = ps3fb_res[i].xres;
res.yres = ps3fb_res[i].yres;
res.xoff = ps3fb_res[i].xoff;
res.yoff = ps3fb_res[i].yoff;
res.num_frames = ps3fb.num_frames;
if (!copy_to_user(argp, &res, sizeof(res)))
retval = 0;
break;
}
case PS3FB_IOCTL_ON:
DPRINTK("PS3FB_IOCTL_ON:\n");
atomic_inc(&ps3fb.ext_flip);
retval = 0;
break;
case PS3FB_IOCTL_OFF:
DPRINTK("PS3FB_IOCTL_OFF:\n");
atomic_dec_if_positive(&ps3fb.ext_flip);
retval = 0;
break;
case PS3FB_IOCTL_FSEL:
if (copy_from_user(&val, argp, sizeof(val)))
break;
DPRINTK("PS3FB_IOCTL_FSEL:%d\n", val);
retval = ps3fb_sync(val);
break;
default:
retval = -ENOIOCTLCMD;
break;
}
return retval;
}
static int ps3fbd(void *arg)
{
while (!kthread_should_stop()) {
try_to_freeze();
set_current_state(TASK_INTERRUPTIBLE);
if (ps3fb.is_kicked) {
ps3fb.is_kicked = 0;
ps3fb_sync(0); /* single buffer */
}
schedule();
}
return 0;
}
static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
{
u64 v1;
int status;
struct display_head *head = &ps3fb.dinfo->display_head[1];
status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
if (status) {
printk(KERN_ERR "%s: lv1_gpu_context_intr failed: %d\n",
__func__, status);
return IRQ_NONE;
}
if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
/* VSYNC */
ps3fb.vblank_count = head->vblank_count;
if (ps3fb.task && !ps3fb.is_blanked &&
!atomic_read(&ps3fb.ext_flip)) {
ps3fb.is_kicked = 1;
wake_up_process(ps3fb.task);
}
wake_up_interruptible(&ps3fb.wait_vsync);
}
return IRQ_HANDLED;
}
#ifndef MODULE
static int __init ps3fb_setup(char *options)
{
char *this_opt;
int mode = 0;
if (!options || !*options)
return 0; /* no options */
while ((this_opt = strsep(&options, ",")) != NULL) {
if (!*this_opt)
continue;
if (!strncmp(this_opt, "mode:", 5))
mode = simple_strtoul(this_opt + 5, NULL, 0);
else
mode_option = this_opt;
}
return mode;
}
#endif /* MODULE */
/*
* Initialisation
*/
static void ps3fb_platform_release(struct device *device)
{
/* This is called when the reference count goes to zero. */
}
static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo, void *dev)
{
int error;
DPRINTK("version_driver:%x\n", dinfo->version_driver);
DPRINTK("irq outlet:%x\n", dinfo->irq.irq_outlet);
DPRINTK("version_gpu:%x memory_size:%x ch:%x core_freq:%d mem_freq:%d\n",
dinfo->version_gpu, dinfo->memory_size, dinfo->hardware_channel,
dinfo->nvcore_frequency/1000000, dinfo->memory_frequency/1000000);
if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
printk(KERN_ERR "%s: version_driver err:%x\n", __func__,
dinfo->version_driver);
return -EINVAL;
}
ps3fb.dev = dev;
error = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
&ps3fb.irq_no);
if (error) {
printk(KERN_ERR "%s: ps3_alloc_irq failed %d\n", __func__,
error);
return error;
}
error = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt, IRQF_DISABLED,
"ps3fb vsync", ps3fb.dev);
if (error) {
printk(KERN_ERR "%s: request_irq failed %d\n", __func__,
error);
ps3_irq_plug_destroy(ps3fb.irq_no);
return error;
}
dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
(1 << GPU_INTR_STATUS_FLIP_1);
return 0;
}
static int ps3fb_xdr_settings(u64 xdr_lpar)
{
int status;
status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
xdr_lpar, ps3fb_videomemory.size, 0);
if (status) {
printk(KERN_ERR "%s: lv1_gpu_context_iomap failed: %d\n",
__func__, status);
return -ENXIO;
}
DPRINTK("video:%p xdr_ea:%p ioif:%lx lpar:%lx phys:%lx size:%lx\n",
ps3fb_videomemory.address, ps3fb.xdr_ea, GPU_IOIF, xdr_lpar,
virt_to_abs(ps3fb.xdr_ea), ps3fb_videomemory.size);
status = lv1_gpu_context_attribute(ps3fb.context_handle,
L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP,
xdr_lpar, ps3fb_videomemory.size,
GPU_IOIF, 0);
if (status) {
printk(KERN_ERR
"%s: lv1_gpu_context_attribute FB_SETUP failed: %d\n",
__func__, status);
return -ENXIO;
}
return 0;
}
static struct fb_ops ps3fb_ops = {
.fb_open = ps3fb_open,
.fb_release = ps3fb_release,
.fb_check_var = ps3fb_check_var,
.fb_set_par = ps3fb_set_par,
.fb_setcolreg = ps3fb_setcolreg,
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
.fb_mmap = ps3fb_mmap,
.fb_blank = ps3fb_blank,
.fb_ioctl = ps3fb_ioctl,
.fb_compat_ioctl = ps3fb_ioctl
};
static struct fb_fix_screeninfo ps3fb_fix __initdata = {
.id = "PS3 FB",
.type = FB_TYPE_PACKED_PIXELS,
.visual = FB_VISUAL_TRUECOLOR,
.accel = FB_ACCEL_NONE,
};
static int __init ps3fb_probe(struct platform_device *dev)
{
struct fb_info *info;
int retval = -ENOMEM;
u64 ddr_lpar = 0;
u64 lpar_dma_control = 0;
u64 lpar_driver_info = 0;
u64 lpar_reports = 0;
u64 lpar_reports_size = 0;
u64 xdr_lpar;
int status;
unsigned long offset;
struct task_struct *task;
/* get gpu context handle */
status = lv1_gpu_memory_allocate(DDR_SIZE, 0, 0, 0, 0,
&ps3fb.memory_handle, &ddr_lpar);
if (status) {
printk(KERN_ERR "%s: lv1_gpu_memory_allocate failed: %d\n",
__func__, status);
goto err;
}
DPRINTK("ddr:lpar:0x%lx\n", ddr_lpar);
status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,
&ps3fb.context_handle,
&lpar_dma_control, &lpar_driver_info,
&lpar_reports, &lpar_reports_size);
if (status) {
printk(KERN_ERR "%s: lv1_gpu_context_attribute failed: %d\n",
__func__, status);
goto err_gpu_memory_free;
}
/* vsync interrupt */
ps3fb.dinfo = ioremap(lpar_driver_info, 128 * 1024);
if (!ps3fb.dinfo) {
printk(KERN_ERR "%s: ioremap failed\n", __func__);
goto err_gpu_context_free;
}
retval = ps3fb_vsync_settings(ps3fb.dinfo, dev);
if (retval)
goto err_iounmap_dinfo;
/* xdr frame buffer */
ps3fb.xdr_ea = ps3fb_videomemory.address;
xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb.xdr_ea));
retval = ps3fb_xdr_settings(xdr_lpar);
if (retval)
goto err_free_irq;
/*
* ps3fb must clear memory to prevent kernel info
* leakage into userspace
*/
memset(ps3fb.xdr_ea, 0, ps3fb_videomemory.size);
info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev);
if (!info)
goto err_free_irq;
offset = FB_OFF(ps3fb.res_index) + VP_OFF(ps3fb.res_index);
info->screen_base = (char __iomem *)ps3fb.xdr_ea + offset;
info->fbops = &ps3fb_ops;
info->fix = ps3fb_fix;
info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea);
info->fix.smem_len = ps3fb_videomemory.size - offset;
info->pseudo_palette = info->par;
info->par = NULL;
info->flags = FBINFO_FLAG_DEFAULT;
retval = fb_alloc_cmap(&info->cmap, 256, 0);
if (retval < 0)
goto err_framebuffer_release;
if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
ARRAY_SIZE(ps3fb_modedb), ps3fb_default_mode(), 32)) {
retval = -EINVAL;
goto err_fb_dealloc;
}
fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
&info->modelist);
retval = register_framebuffer(info);
if (retval < 0)
goto err_fb_dealloc;
platform_set_drvdata(dev, info);
printk(KERN_INFO
"fb%d: PS3 frame buffer device, using %ld KiB of video memory\n",
info->node, ps3fb_videomemory.size >> 10);
task = kthread_run(ps3fbd, info, "ps3fbd");
if (IS_ERR(task)) {
retval = PTR_ERR(task);
goto err_unregister_framebuffer;
}
ps3fb.task = task;
return 0;
err_unregister_framebuffer:
unregister_framebuffer(info);
err_fb_dealloc:
fb_dealloc_cmap(&info->cmap);
err_framebuffer_release:
framebuffer_release(info);
err_free_irq:
free_irq(ps3fb.irq_no, ps3fb.dev);
ps3_irq_plug_destroy(ps3fb.irq_no);
err_iounmap_dinfo:
iounmap((u8 __iomem *)ps3fb.dinfo);
err_gpu_context_free:
lv1_gpu_context_free(ps3fb.context_handle);
err_gpu_memory_free:
lv1_gpu_memory_free(ps3fb.memory_handle);
err:
return retval;
}
static void ps3fb_shutdown(struct platform_device *dev)
{
ps3fb_flip_ctl(0); /* flip off */
ps3fb.dinfo->irq.mask = 0;
free_irq(ps3fb.irq_no, ps3fb.dev);
ps3_irq_plug_destroy(ps3fb.irq_no);
iounmap((u8 __iomem *)ps3fb.dinfo);
}
void ps3fb_cleanup(void)
{
int status;
if (ps3fb.task) {
struct task_struct *task = ps3fb.task;
ps3fb.task = NULL;
kthread_stop(task);
}
if (ps3fb.irq_no) {
free_irq(ps3fb.irq_no, ps3fb.dev);
ps3_irq_plug_destroy(ps3fb.irq_no);
}
iounmap((u8 __iomem *)ps3fb.dinfo);
status = lv1_gpu_context_free(ps3fb.context_handle);
if (status)
DPRINTK("lv1_gpu_context_free failed: %d\n", status);
status = lv1_gpu_memory_free(ps3fb.memory_handle);
if (status)
DPRINTK("lv1_gpu_memory_free failed: %d\n", status);
ps3av_dev_close();
}
EXPORT_SYMBOL_GPL(ps3fb_cleanup);
static int ps3fb_remove(struct platform_device *dev)
{
struct fb_info *info = platform_get_drvdata(dev);
if (info) {
unregister_framebuffer(info);
fb_dealloc_cmap(&info->cmap);
framebuffer_release(info);
}
ps3fb_cleanup();
return 0;
}
static struct platform_driver ps3fb_driver = {
.probe = ps3fb_probe,
.remove = ps3fb_remove,
.shutdown = ps3fb_shutdown,
.driver = { .name = "ps3fb" }
};
static struct platform_device ps3fb_device = {
.name = "ps3fb",
.id = 0,
.dev = { .release = ps3fb_platform_release }
};
int ps3fb_set_sync(void)
{
int status;
#ifdef HEAD_A
status = lv1_gpu_context_attribute(0x0,
L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
0, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
if (status) {
printk(KERN_ERR
"%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: %d\n",
__func__, status);
return -1;
}
#endif
#ifdef HEAD_B
status = lv1_gpu_context_attribute(0x0,
L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
1, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
if (status) {
printk(KERN_ERR
"%s: lv1_gpu_context_attribute DISPLAY_MODE failed: %d\n",
__func__, status);
return -1;
}
#endif
return 0;
}
EXPORT_SYMBOL_GPL(ps3fb_set_sync);
static int __init ps3fb_init(void)
{
int error;
#ifndef MODULE
int mode;
char *option = NULL;
if (fb_get_options("ps3fb", &option))
goto err;
#endif
if (!ps3fb_videomemory.address)
goto err;
error = ps3av_dev_open();
if (error) {
printk(KERN_ERR "%s: ps3av_dev_open failed\n", __func__);
goto err;
}
ps3fb_mode = ps3av_get_mode();
DPRINTK("ps3av_mode:%d\n", ps3fb_mode);
#ifndef MODULE
mode = ps3fb_setup(option); /* check boot option */
if (mode)
ps3fb_mode = mode;
#endif
if (ps3fb_mode > 0) {
u32 xres, yres;
ps3av_video_mode2res(ps3fb_mode, &xres, &yres);
ps3fb.res_index = ps3fb_get_res_table(xres, yres);
DPRINTK("res_index:%d\n", ps3fb.res_index);
} else
ps3fb.res_index = GPU_RES_INDEX;
atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
init_waitqueue_head(&ps3fb.wait_vsync);
ps3fb.num_frames = 1;
error = platform_driver_register(&ps3fb_driver);
if (!error) {
error = platform_device_register(&ps3fb_device);
if (error)
platform_driver_unregister(&ps3fb_driver);
}
ps3fb_set_sync();
return error;
err:
return -ENXIO;
}
module_init(ps3fb_init);
#ifdef MODULE
static void __exit ps3fb_exit(void)
{
platform_device_unregister(&ps3fb_device);
platform_driver_unregister(&ps3fb_driver);
}
module_exit(ps3fb_exit);
MODULE_LICENSE("GPL");
#endif /* MODULE */
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