#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/console.h>
+#include <linux/io.h>
-#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm/div64.h>
HEAD_PANEL = 1,
};
-/* SM501 memory address */
+/* SM501 memory address.
+ *
+ * This structure is used to track memory usage within the SM501 framebuffer
+ * allocation. The sm_addr field is stored as an offset as it is often used
+ * against both the physical and mapped addresses.
+ */
struct sm501_mem {
unsigned long size;
- unsigned long sm_addr;
+ unsigned long sm_addr; /* offset from base of sm501 fb. */
void __iomem *k_addr;
};
struct fb_info *fb[2]; /* fb info for both heads */
struct resource *fbmem_res; /* framebuffer resource */
struct resource *regs_res; /* registers resource */
+ struct resource *regs2d_res; /* 2d registers resource */
struct sm501_platdata_fb *pdata; /* our platform data */
unsigned long pm_crt_ctrl; /* pm: crt ctrl save */
int irq;
int swap_endian; /* set to swap rgb=>bgr */
void __iomem *regs; /* remapped registers */
+ void __iomem *regs2d; /* 2d remapped registers */
void __iomem *fbmem; /* remapped framebuffer */
size_t fbmem_len; /* length of remapped region */
};
* This is an attempt to lay out memory for the two framebuffers and
* everything else
*
- * |fbmem_res->start fbmem_res->end|
- * | |
- * |fb[0].fix.smem_start | |fb[1].fix.smem_start | 2K |
+ * |fbmem_res->start fbmem_res->end|
+ * | |
+ * |fb[0].fix.smem_start | |fb[1].fix.smem_start | 2K |
* |-> fb[0].fix.smem_len <-| spare |-> fb[1].fix.smem_len <-|-> cursors <-|
*
* The "spare" space is for the 2d engine data
#define SM501_MEMF_ACCEL (8)
static int sm501_alloc_mem(struct sm501fb_info *inf, struct sm501_mem *mem,
- unsigned int why, size_t size)
+ unsigned int why, size_t size, u32 smem_len)
{
- unsigned int ptr = 0;
- unsigned int end;
+ struct sm501fb_par *par;
struct fb_info *fbi;
+ unsigned int ptr;
+ unsigned int end;
switch (why) {
case SM501_MEMF_CURSOR:
ptr = inf->fbmem_len - size;
- inf->fbmem_len = ptr;
+ inf->fbmem_len = ptr; /* adjust available memory. */
break;
case SM501_MEMF_PANEL:
+ if (size > inf->fbmem_len)
+ return -ENOMEM;
+
ptr = inf->fbmem_len - size;
- fbi = inf->fb[0];
+ fbi = inf->fb[HEAD_CRT];
- if (fbi && ptr < fbi->fix.smem_len)
+ /* round down, some programs such as directfb do not draw
+ * 0,0 correctly unless the start is aligned to a page start.
+ */
+
+ if (ptr > 0)
+ ptr &= ~(PAGE_SIZE - 1);
+
+ if (fbi && ptr < smem_len)
return -ENOMEM;
break;
case SM501_MEMF_CRT:
ptr = 0;
+
+ /* check to see if we have panel memory allocated
+ * which would put an limit on available memory. */
+
+ fbi = inf->fb[HEAD_PANEL];
+ if (fbi) {
+ par = fbi->par;
+ end = par->screen.k_addr ? par->screen.sm_addr : inf->fbmem_len;
+ } else
+ end = inf->fbmem_len;
+
+ if ((ptr + size) > end)
+ return -ENOMEM;
+
break;
case SM501_MEMF_ACCEL:
- fbi = inf->fb[0];
- ptr = fbi ? fbi->fix.smem_len : 0;
-
- fbi = inf->fb[1];
- if (fbi)
- end = (fbi->fix.smem_start - inf->fbmem_res->start);
- else
+ fbi = inf->fb[HEAD_CRT];
+ ptr = fbi ? smem_len : 0;
+
+ fbi = inf->fb[HEAD_PANEL];
+ if (fbi) {
+ par = fbi->par;
+ end = par->screen.sm_addr;
+ } else
end = inf->fbmem_len;
if ((ptr + size) > end)
struct sm501fb_par *par = info->par;
struct sm501fb_info *fbi = par->info;
unsigned long pixclock; /* pixelclock in Hz */
- unsigned long sm501pixclock; /* pixelclock the 501 can achive in Hz */
+ unsigned long sm501pixclock; /* pixelclock the 501 can achieve in Hz */
unsigned int mem_type;
unsigned int clock_type;
unsigned int head_addr;
+ unsigned int smem_len;
dev_dbg(fbi->dev, "%s: %dx%d, bpp = %d, virtual %dx%d\n",
__func__, var->xres, var->yres, var->bits_per_pixel,
/* allocate fb memory within 501 */
info->fix.line_length = (var->xres_virtual * var->bits_per_pixel)/8;
- info->fix.smem_len = info->fix.line_length * var->yres_virtual;
+ smem_len = info->fix.line_length * var->yres_virtual;
dev_dbg(fbi->dev, "%s: line length = %u\n", __func__,
info->fix.line_length);
- if (sm501_alloc_mem(fbi, &par->screen, mem_type,
- info->fix.smem_len)) {
+ if (sm501_alloc_mem(fbi, &par->screen, mem_type, smem_len, smem_len)) {
dev_err(fbi->dev, "no memory available\n");
return -ENOMEM;
}
+ mutex_lock(&info->mm_lock);
info->fix.smem_start = fbi->fbmem_res->start + par->screen.sm_addr;
+ info->fix.smem_len = smem_len;
+ mutex_unlock(&info->mm_lock);
info->screen_base = fbi->fbmem + par->screen.sm_addr;
info->screen_size = info->fix.smem_len;
if ((control & SM501_DC_CRT_CONTROL_SEL) == 0) {
/* the head is displaying panel data... */
- sm501_alloc_mem(fbi, &par->screen, SM501_MEMF_CRT, 0);
+ sm501_alloc_mem(fbi, &par->screen, SM501_MEMF_CRT, 0,
+ info->fix.smem_len);
goto out_update;
}
static DEVICE_ATTR(fbregs_pnl, 0444, sm501fb_debug_show_pnl, NULL);
-/* framebuffer ops */
+/* acceleration operations */
+static int sm501fb_sync(struct fb_info *info)
+{
+ int count = 1000000;
+ struct sm501fb_par *par = info->par;
+ struct sm501fb_info *fbi = par->info;
+
+ /* wait for the 2d engine to be ready */
+ while ((count > 0) &&
+ (readl(fbi->regs + SM501_SYSTEM_CONTROL) &
+ SM501_SYSCTRL_2D_ENGINE_STATUS) != 0)
+ count--;
+
+ if (count <= 0) {
+ dev_err(info->dev, "Timeout waiting for 2d engine sync\n");
+ return 1;
+ }
+ return 0;
+}
+
+static void sm501fb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
+{
+ struct sm501fb_par *par = info->par;
+ struct sm501fb_info *fbi = par->info;
+ int width = area->width;
+ int height = area->height;
+ int sx = area->sx;
+ int sy = area->sy;
+ int dx = area->dx;
+ int dy = area->dy;
+ unsigned long rtl = 0;
+
+ /* source clip */
+ if ((sx >= info->var.xres_virtual) ||
+ (sy >= info->var.yres_virtual))
+ /* source Area not within virtual screen, skipping */
+ return;
+ if ((sx + width) >= info->var.xres_virtual)
+ width = info->var.xres_virtual - sx - 1;
+ if ((sy + height) >= info->var.yres_virtual)
+ height = info->var.yres_virtual - sy - 1;
+
+ /* dest clip */
+ if ((dx >= info->var.xres_virtual) ||
+ (dy >= info->var.yres_virtual))
+ /* Destination Area not within virtual screen, skipping */
+ return;
+ if ((dx + width) >= info->var.xres_virtual)
+ width = info->var.xres_virtual - dx - 1;
+ if ((dy + height) >= info->var.yres_virtual)
+ height = info->var.yres_virtual - dy - 1;
+
+ if ((sx < dx) || (sy < dy)) {
+ rtl = 1 << 27;
+ sx += width - 1;
+ dx += width - 1;
+ sy += height - 1;
+ dy += height - 1;
+ }
+
+ if (sm501fb_sync(info))
+ return;
+
+ /* set the base addresses */
+ writel(par->screen.sm_addr, fbi->regs2d + SM501_2D_SOURCE_BASE);
+ writel(par->screen.sm_addr, fbi->regs2d + SM501_2D_DESTINATION_BASE);
+
+ /* set the window width */
+ writel((info->var.xres << 16) | info->var.xres,
+ fbi->regs2d + SM501_2D_WINDOW_WIDTH);
+
+ /* set window stride */
+ writel((info->var.xres_virtual << 16) | info->var.xres_virtual,
+ fbi->regs2d + SM501_2D_PITCH);
+
+ /* set data format */
+ switch (info->var.bits_per_pixel) {
+ case 8:
+ writel(0, fbi->regs2d + SM501_2D_STRETCH);
+ break;
+ case 16:
+ writel(0x00100000, fbi->regs2d + SM501_2D_STRETCH);
+ break;
+ case 32:
+ writel(0x00200000, fbi->regs2d + SM501_2D_STRETCH);
+ break;
+ }
+
+ /* 2d compare mask */
+ writel(0xffffffff, fbi->regs2d + SM501_2D_COLOR_COMPARE_MASK);
+
+ /* 2d mask */
+ writel(0xffffffff, fbi->regs2d + SM501_2D_MASK);
+
+ /* source and destination x y */
+ writel((sx << 16) | sy, fbi->regs2d + SM501_2D_SOURCE);
+ writel((dx << 16) | dy, fbi->regs2d + SM501_2D_DESTINATION);
+
+ /* w/h */
+ writel((width << 16) | height, fbi->regs2d + SM501_2D_DIMENSION);
+
+ /* do area move */
+ writel(0x800000cc | rtl, fbi->regs2d + SM501_2D_CONTROL);
+}
+
+static void sm501fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
+{
+ struct sm501fb_par *par = info->par;
+ struct sm501fb_info *fbi = par->info;
+ int width = rect->width, height = rect->height;
+
+ if ((rect->dx >= info->var.xres_virtual) ||
+ (rect->dy >= info->var.yres_virtual))
+ /* Rectangle not within virtual screen, skipping */
+ return;
+ if ((rect->dx + width) >= info->var.xres_virtual)
+ width = info->var.xres_virtual - rect->dx - 1;
+ if ((rect->dy + height) >= info->var.yres_virtual)
+ height = info->var.yres_virtual - rect->dy - 1;
+
+ if (sm501fb_sync(info))
+ return;
+
+ /* set the base addresses */
+ writel(par->screen.sm_addr, fbi->regs2d + SM501_2D_SOURCE_BASE);
+ writel(par->screen.sm_addr, fbi->regs2d + SM501_2D_DESTINATION_BASE);
+
+ /* set the window width */
+ writel((info->var.xres << 16) | info->var.xres,
+ fbi->regs2d + SM501_2D_WINDOW_WIDTH);
+
+ /* set window stride */
+ writel((info->var.xres_virtual << 16) | info->var.xres_virtual,
+ fbi->regs2d + SM501_2D_PITCH);
+
+ /* set data format */
+ switch (info->var.bits_per_pixel) {
+ case 8:
+ writel(0, fbi->regs2d + SM501_2D_STRETCH);
+ break;
+ case 16:
+ writel(0x00100000, fbi->regs2d + SM501_2D_STRETCH);
+ break;
+ case 32:
+ writel(0x00200000, fbi->regs2d + SM501_2D_STRETCH);
+ break;
+ }
+
+ /* 2d compare mask */
+ writel(0xffffffff, fbi->regs2d + SM501_2D_COLOR_COMPARE_MASK);
+
+ /* 2d mask */
+ writel(0xffffffff, fbi->regs2d + SM501_2D_MASK);
+
+ /* colour */
+ writel(rect->color, fbi->regs2d + SM501_2D_FOREGROUND);
+
+ /* x y */
+ writel((rect->dx << 16) | rect->dy, fbi->regs2d + SM501_2D_DESTINATION);
+
+ /* w/h */
+ writel((width << 16) | height, fbi->regs2d + SM501_2D_DIMENSION);
+
+ /* do rectangle fill */
+ writel(0x800100cc, fbi->regs2d + SM501_2D_CONTROL);
+}
+
static struct fb_ops sm501fb_ops_crt = {
.owner = THIS_MODULE,
.fb_setcolreg = sm501fb_setcolreg,
.fb_pan_display = sm501fb_pan_crt,
.fb_cursor = sm501fb_cursor,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
+ .fb_fillrect = sm501fb_fillrect,
+ .fb_copyarea = sm501fb_copyarea,
.fb_imageblit = cfb_imageblit,
+ .fb_sync = sm501fb_sync,
};
static struct fb_ops sm501fb_ops_pnl = {
.fb_blank = sm501fb_blank_pnl,
.fb_setcolreg = sm501fb_setcolreg,
.fb_cursor = sm501fb_cursor,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
+ .fb_fillrect = sm501fb_fillrect,
+ .fb_copyarea = sm501fb_copyarea,
.fb_imageblit = cfb_imageblit,
+ .fb_sync = sm501fb_sync,
};
/* sm501_init_cursor
par->cursor_regs = info->regs + reg_base;
- ret = sm501_alloc_mem(info, &par->cursor, SM501_MEMF_CURSOR, 1024);
+ ret = sm501_alloc_mem(info, &par->cursor, SM501_MEMF_CURSOR, 1024,
+ fbi->fix.smem_len);
if (ret < 0)
return ret;
dev_warn(dev, "no irq for device\n");
}
- /* allocate, reserve and remap resources for registers */
+ /* allocate, reserve and remap resources for display
+ * controller registers */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL) {
dev_err(dev, "no resource definition for registers\n");
}
info->regs_res = request_mem_region(res->start,
- res->end - res->start,
+ resource_size(res),
pdev->name);
if (info->regs_res == NULL) {
goto err_release;
}
- info->regs = ioremap(res->start, (res->end - res->start)+1);
+ info->regs = ioremap(res->start, resource_size(res));
if (info->regs == NULL) {
dev_err(dev, "cannot remap registers\n");
ret = -ENXIO;
goto err_regs_res;
}
+ /* allocate, reserve and remap resources for 2d
+ * controller registers */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (res == NULL) {
+ dev_err(dev, "no resource definition for 2d registers\n");
+ ret = -ENOENT;
+ goto err_regs_map;
+ }
+
+ info->regs2d_res = request_mem_region(res->start,
+ resource_size(res),
+ pdev->name);
+
+ if (info->regs2d_res == NULL) {
+ dev_err(dev, "cannot claim registers\n");
+ ret = -ENXIO;
+ goto err_regs_map;
+ }
+
+ info->regs2d = ioremap(res->start, resource_size(res));
+ if (info->regs2d == NULL) {
+ dev_err(dev, "cannot remap registers\n");
+ ret = -ENXIO;
+ goto err_regs2d_res;
+ }
+
/* allocate, reserve resources for framebuffer */
res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
if (res == NULL) {
dev_err(dev, "no memory resource defined\n");
ret = -ENXIO;
- goto err_regs_map;
+ goto err_regs2d_map;
}
info->fbmem_res = request_mem_region(res->start,
- (res->end - res->start)+1,
+ resource_size(res),
pdev->name);
if (info->fbmem_res == NULL) {
dev_err(dev, "cannot claim framebuffer\n");
ret = -ENXIO;
- goto err_regs_map;
+ goto err_regs2d_map;
}
- info->fbmem = ioremap(res->start, (res->end - res->start)+1);
+ info->fbmem = ioremap(res->start, resource_size(res));
if (info->fbmem == NULL) {
dev_err(dev, "cannot remap framebuffer\n");
goto err_mem_res;
}
- info->fbmem_len = (res->end - res->start)+1;
+ info->fbmem_len = resource_size(res);
/* clear framebuffer memory - avoids garbage data on unused fb */
memset(info->fbmem, 0, info->fbmem_len);
/* enable display controller */
sm501_unit_power(dev->parent, SM501_GATE_DISPLAY, 1);
- /* setup cursors */
+ /* enable 2d controller */
+ sm501_unit_power(dev->parent, SM501_GATE_2D_ENGINE, 1);
+ /* setup cursors */
sm501_init_cursor(info->fb[HEAD_CRT], SM501_DC_CRT_HWC_ADDR);
sm501_init_cursor(info->fb[HEAD_PANEL], SM501_DC_PANEL_HWC_ADDR);
release_resource(info->fbmem_res);
kfree(info->fbmem_res);
+ err_regs2d_map:
+ iounmap(info->regs2d);
+
+ err_regs2d_res:
+ release_resource(info->regs2d_res);
+ kfree(info->regs2d_res);
+
err_regs_map:
iounmap(info->regs);
release_resource(info->fbmem_res);
kfree(info->fbmem_res);
+ iounmap(info->regs2d);
+ release_resource(info->regs2d_res);
+ kfree(info->regs2d_res);
+
iounmap(info->regs);
release_resource(info->regs_res);
kfree(info->regs_res);
par->ops.fb_cursor = NULL;
fb->fbops = &par->ops;
- fb->flags = FBINFO_FLAG_DEFAULT |
+ fb->flags = FBINFO_FLAG_DEFAULT | FBINFO_READS_FAST |
+ FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT |
FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;
/* fixed data */
}
/* initialise and set the palette */
- fb_alloc_cmap(&fb->cmap, NR_PALETTE, 0);
+ if (fb_alloc_cmap(&fb->cmap, NR_PALETTE, 0)) {
+ dev_err(info->dev, "failed to allocate cmap memory\n");
+ return -ENOMEM;
+ }
fb_set_cmap(&fb->cmap, fb);
ret = (fb->fbops->fb_check_var)(&fb->var, fb);
if (ret)
dev_err(info->dev, "check_var() failed on initial setup?\n");
- /* ensure we've activated our new configuration */
- (fb->fbops->fb_set_par)(fb);
-
return 0;
}
if (!fbi)
return 0;
+ mutex_init(&info->fb[head]->mm_lock);
+
ret = sm501fb_init_fb(info->fb[head], head, drvname);
if (ret) {
dev_err(info->dev, "cannot initialise fb %s\n", drvname);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff