#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
-#include <linux/tty.h>
-#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/fb.h>
+#include <linux/console.h>
+#include <linux/suspend.h>
#include <linux/init.h>
#include <linux/pci.h>
+#include <linux/cs5535.h>
-#include "geodefb.h"
-#include "display_gx.h"
-#include "video_gx.h"
+#include "gxfb.h"
-static char mode_option[32] = "640x480-16@60";
+static char *mode_option;
+static int vram;
+static int vt_switch;
/* Modes relevant to the GX (taken from modedb.c) */
-static const struct fb_videomode __initdata gx_modedb[] = {
+static struct fb_videomode gx_modedb[] __initdata = {
/* 640x480-60 VESA */
{ NULL, 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2,
0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
};
+#ifdef CONFIG_OLPC
+#include <asm/olpc.h>
+
+static struct fb_videomode gx_dcon_modedb[] __initdata = {
+ /* The only mode the DCON has is 1200x900 */
+ { NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, 0 }
+};
+
+static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size)
+{
+ if (olpc_has_dcon()) {
+ *modedb = (struct fb_videomode *) gx_dcon_modedb;
+ *size = ARRAY_SIZE(gx_dcon_modedb);
+ } else {
+ *modedb = (struct fb_videomode *) gx_modedb;
+ *size = ARRAY_SIZE(gx_modedb);
+ }
+}
+
+#else
+static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size)
+{
+ *modedb = (struct fb_videomode *) gx_modedb;
+ *size = ARRAY_SIZE(gx_modedb);
+}
+#endif
+
static int gxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
if (var->xres > 1600 || var->yres > 1200)
static int gxfb_set_par(struct fb_info *info)
{
- struct geodefb_par *par = info->par;
-
- if (info->var.bits_per_pixel > 8) {
+ if (info->var.bits_per_pixel > 8)
info->fix.visual = FB_VISUAL_TRUECOLOR;
- fb_dealloc_cmap(&info->cmap);
- } else {
+ else
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
- fb_alloc_cmap(&info->cmap, 1<<info->var.bits_per_pixel, 0);
- }
info->fix.line_length = gx_line_delta(info->var.xres, info->var.bits_per_pixel);
- par->dc_ops->set_mode(info);
+ gx_set_mode(info);
return 0;
}
unsigned blue, unsigned transp,
struct fb_info *info)
{
- struct geodefb_par *par = info->par;
-
if (info->var.grayscale) {
/* grayscale = 0.30*R + 0.59*G + 0.11*B */
red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
if (regno >= 256)
return -EINVAL;
- par->dc_ops->set_palette_reg(info, regno, red, green, blue);
+ gx_set_hw_palette_reg(info, regno, red, green, blue);
}
return 0;
static int gxfb_blank(int blank_mode, struct fb_info *info)
{
- struct geodefb_par *par = info->par;
-
- return par->vid_ops->blank_display(info, blank_mode);
+ return gx_blank_display(info, blank_mode);
}
static int __init gxfb_map_video_memory(struct fb_info *info, struct pci_dev *dev)
{
- struct geodefb_par *par = info->par;
- int fb_len;
+ struct gxfb_par *par = info->par;
int ret;
ret = pci_enable_device(dev);
ret = pci_request_region(dev, 3, "gxfb (video processor)");
if (ret < 0)
return ret;
- par->vid_regs = ioremap(pci_resource_start(dev, 3),
- pci_resource_len(dev, 3));
+ par->vid_regs = pci_ioremap_bar(dev, 3);
if (!par->vid_regs)
return -ENOMEM;
ret = pci_request_region(dev, 2, "gxfb (display controller)");
if (ret < 0)
return ret;
- par->dc_regs = ioremap(pci_resource_start(dev, 2), pci_resource_len(dev, 2));
+ par->dc_regs = pci_ioremap_bar(dev, 2);
if (!par->dc_regs)
return -ENOMEM;
- ret = pci_request_region(dev, 0, "gxfb (framebuffer)");
+ ret = pci_request_region(dev, 1, "gxfb (graphics processor)");
if (ret < 0)
return ret;
- if ((fb_len = gx_frame_buffer_size()) < 0)
+ par->gp_regs = pci_ioremap_bar(dev, 1);
+
+ if (!par->gp_regs)
return -ENOMEM;
+
+ ret = pci_request_region(dev, 0, "gxfb (framebuffer)");
+ if (ret < 0)
+ return ret;
+
info->fix.smem_start = pci_resource_start(dev, 0);
- info->fix.smem_len = fb_len;
+ info->fix.smem_len = vram ? vram : gx_frame_buffer_size();
info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len);
if (!info->screen_base)
return -ENOMEM;
- dev_info(&dev->dev, "%d Kibyte of video memory at 0x%lx\n",
+ /* Set the 16MiB aligned base address of the graphics memory region
+ * in the display controller */
+
+ write_dc(par, DC_GLIU0_MEM_OFFSET, info->fix.smem_start & 0xFF000000);
+
+ dev_info(&dev->dev, "%d KiB of video memory at 0x%lx\n",
info->fix.smem_len / 1024, info->fix.smem_start);
return 0;
static struct fb_info * __init gxfb_init_fbinfo(struct device *dev)
{
- struct geodefb_par *par;
+ struct gxfb_par *par;
struct fb_info *info;
/* Alloc enough space for the pseudo palette. */
- info = framebuffer_alloc(sizeof(struct geodefb_par) + sizeof(u32) * 16, dev);
+ info = framebuffer_alloc(sizeof(struct gxfb_par) + sizeof(u32) * 16,
+ dev);
if (!info)
return NULL;
info->flags = FBINFO_DEFAULT;
info->node = -1;
- info->pseudo_palette = (void *)par + sizeof(struct geodefb_par);
+ info->pseudo_palette = (void *)par + sizeof(struct gxfb_par);
info->var.grayscale = 0;
+ if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
+ framebuffer_release(info);
+ return NULL;
+ }
+
return info;
}
+#ifdef CONFIG_PM
+static int gxfb_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct fb_info *info = pci_get_drvdata(pdev);
+
+ if (state.event == PM_EVENT_SUSPEND) {
+ acquire_console_sem();
+ gx_powerdown(info);
+ fb_set_suspend(info, 1);
+ release_console_sem();
+ }
+
+ /* there's no point in setting PCI states; we emulate PCI, so
+ * we don't end up getting power savings anyways */
+
+ return 0;
+}
+
+static int gxfb_resume(struct pci_dev *pdev)
+{
+ struct fb_info *info = pci_get_drvdata(pdev);
+ int ret;
+
+ acquire_console_sem();
+ ret = gx_powerup(info);
+ if (ret) {
+ printk(KERN_ERR "gxfb: power up failed!\n");
+ return ret;
+ }
+
+ fb_set_suspend(info, 0);
+ release_console_sem();
+ return 0;
+}
+#endif
+
static int __init gxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
- struct geodefb_par *par;
+ struct gxfb_par *par;
struct fb_info *info;
int ret;
+ unsigned long val;
+
+ struct fb_videomode *modedb_ptr;
+ unsigned int modedb_size;
info = gxfb_init_fbinfo(&pdev->dev);
if (!info)
return -ENOMEM;
par = info->par;
- /* GX display controller and GX video device. */
- par->dc_ops = &gx_dc_ops;
- par->vid_ops = &gx_vid_ops;
-
if ((ret = gxfb_map_video_memory(info, pdev)) < 0) {
dev_err(&pdev->dev, "failed to map frame buffer or controller registers\n");
goto err;
}
+ /* Figure out if this is a TFT or CRT part */
+
+ rdmsrl(MSR_GX_GLD_MSR_CONFIG, val);
+
+ if ((val & MSR_GX_GLD_MSR_CONFIG_FP) == MSR_GX_GLD_MSR_CONFIG_FP)
+ par->enable_crt = 0;
+ else
+ par->enable_crt = 1;
+
+ get_modedb(&modedb_ptr, &modedb_size);
ret = fb_find_mode(&info->var, info, mode_option,
- gx_modedb, ARRAY_SIZE(gx_modedb), NULL, 16);
+ modedb_ptr, modedb_size, NULL, 16);
if (ret == 0 || ret == 4) {
dev_err(&pdev->dev, "could not find valid video mode\n");
ret = -EINVAL;
goto err;
}
- /* Clear the frame buffer of garbage. */
+
+ /* Clear the frame buffer of garbage. */
memset_io(info->screen_base, 0, info->fix.smem_len);
gxfb_check_var(&info->var, info);
gxfb_set_par(info);
+ pm_set_vt_switch(vt_switch);
+
if (register_framebuffer(info) < 0) {
ret = -EINVAL;
goto err;
iounmap(par->dc_regs);
pci_release_region(pdev, 2);
}
+ if (par->gp_regs) {
+ iounmap(par->gp_regs);
+ pci_release_region(pdev, 1);
+ }
- pci_disable_device(pdev);
-
- if (info)
+ if (info) {
+ fb_dealloc_cmap(&info->cmap);
framebuffer_release(info);
+ }
return ret;
}
static void gxfb_remove(struct pci_dev *pdev)
{
struct fb_info *info = pci_get_drvdata(pdev);
- struct geodefb_par *par = info->par;
+ struct gxfb_par *par = info->par;
unregister_framebuffer(info);
iounmap(par->dc_regs);
pci_release_region(pdev, 2);
- pci_disable_device(pdev);
+ iounmap(par->gp_regs);
+ pci_release_region(pdev, 1);
+
+ fb_dealloc_cmap(&info->cmap);
pci_set_drvdata(pdev, NULL);
framebuffer_release(info);
}
static struct pci_device_id gxfb_id_table[] = {
- { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_CS5535_VIDEO,
- PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16,
- 0xff0000, 0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_GX_VIDEO) },
{ 0, }
};
.id_table = gxfb_id_table,
.probe = gxfb_probe,
.remove = gxfb_remove,
+#ifdef CONFIG_PM
+ .suspend = gxfb_suspend,
+ .resume = gxfb_resume,
+#endif
};
+#ifndef MODULE
+static int __init gxfb_setup(char *options)
+{
+
+ char *opt;
+
+ if (!options || !*options)
+ return 0;
+
+ while ((opt = strsep(&options, ",")) != NULL) {
+ if (!*opt)
+ continue;
+
+ mode_option = opt;
+ }
+
+ return 0;
+}
+#endif
+
static int __init gxfb_init(void)
{
#ifndef MODULE
- if (fb_get_options("gxfb", NULL))
+ char *option = NULL;
+
+ if (fb_get_options("gxfb", &option))
return -ENODEV;
+
+ gxfb_setup(option);
#endif
return pci_register_driver(&gxfb_driver);
}
module_init(gxfb_init);
module_exit(gxfb_cleanup);
-module_param_string(mode, mode_option, sizeof(mode_option), 0444);
-MODULE_PARM_DESC(mode, "video mode (<x>x<y>[-<bpp>][@<refr>])");
+module_param(mode_option, charp, 0);
+MODULE_PARM_DESC(mode_option, "video mode (<x>x<y>[-<bpp>][@<refr>])");
+
+module_param(vram, int, 0);
+MODULE_PARM_DESC(vram, "video memory size");
+
+module_param(vt_switch, int, 0);
+MODULE_PARM_DESC(vt_switch, "enable VT switch during suspend/resume");
MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode GX");
MODULE_LICENSE("GPL");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff