diff options
Diffstat (limited to 'drivers/video/voyager/voyager_valphafb.c')
| -rw-r--r-- | drivers/video/voyager/voyager_valphafb.c | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/drivers/video/voyager/voyager_valphafb.c b/drivers/video/voyager/voyager_valphafb.c new file mode 100644 index 00000000000000..565918d487db79 --- /dev/null +++ b/drivers/video/voyager/voyager_valphafb.c @@ -0,0 +1,286 @@ +/* + * linux/drivers/video/voyager_valphafb.c -- voyager video alpha frame buffer driver + * + * Copyright (C) 2003 Renesas Technology Sales Co.,Ltd. + * Copyright (C) 2003 Atom Create Engineering Co.,Ltd. + * Anthor : Atom Create Engineering Co.,Ltd. + * Kenichi Sakuma + * + * 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. + * + * 1.00 + * - initial version (ks) + * 1.01 + * - Kernel 2.6 correspondence + */ +#include <linux/config.h> +#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/fb.h> +#include <linux/init.h> +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/mach/voyagergx_reg.h> +#include <video/voyager.h> + +static struct fb_info voyafb_info; + +int voyafb_init3(void); +static int voyafb_check_var(struct fb_var_screeninfo *var, + struct fb_info *info); +static int voyafb_set_par(struct fb_info *info); +static int voyafb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, + u_int transp, struct fb_info *info); +static int voyafb_blank(int blank, struct fb_info *info); +static int voyafb_ioctl(struct inode*, struct file*, + unsigned int, unsigned long, struct fb_info*); +static int change_mode(struct fb_var_screeninfo *var); + +static unsigned int pseudo_palette[16]; + +static struct fb_ops voyafb_ops = { + .owner = THIS_MODULE, + .fb_check_var = voyafb_check_var, + .fb_set_par = voyafb_set_par, + .fb_setcolreg = voyafb_setcolreg, + .fb_blank = voyafb_blank, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, + .fb_ioctl = voyafb_ioctl, +}; + +static struct fb_var_screeninfo voyafb_var __initdata = { + .xres = XRES, + .yres = YRES, + .xres_virtual = XRES, + .yres_virtual = YRES, + .bits_per_pixel = BPP, + .red = { 11,5,0 }, + .green = { 5,6,0 }, + .blue = { 0,5,0 }, + .height = -1, + .width = -1, + .vmode = FB_VMODE_NONINTERLACED, + .pixclock = 10000, + .left_margin = 16, + .right_margin = 16, + .upper_margin = 16, + .lower_margin = 16, + .hsync_len = 8, + .vsync_len = 8, +}; + +static int voyafb_check_var(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + if (var->xres > XRES || var->yres > YRES + || var->xres_virtual > XRES || var->yres_virtual > YRES + || var->bits_per_pixel != BPP + || var->nonstd + || (var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED) + return -EINVAL; + + var->xres_virtual = XRES; + var->yres_virtual = YRES; + + if(change_mode(var) != 0) { + return -EINVAL; + } + + return 0; +} + +static int voyafb_set_par(struct fb_info *info) +{ + info->fix.line_length = XRES*2; + info->fix.visual = FB_VISUAL_TRUECOLOR; + + info->var.red.offset = 11; + info->var.green.offset = 5; + info->var.blue.offset = 0; + info->var.red.length = info->var.blue.length = 5; + info->var.green.length = 6; + return 0; +} + +static int voyafb_blank(int blank, struct fb_info *info) +{ + return 1; +} + +static int voyafb_setcolreg(unsigned regno, unsigned red, unsigned green, + unsigned blue, unsigned transp, + struct fb_info* info) +{ + red >>= 11; + green >>= 11; + blue >>= 10; + + if (regno < 16) + ((u32 *)(info->pseudo_palette))[regno] = ((red & 31) << 6) | + ((green & 31) << 11) | + ((blue & 63)); + return 0; +} + +static int voyafb_ioctl(struct inode* inode, struct file* file, + unsigned int cmd, unsigned long arg, + struct fb_info* info) +{ + if(cmd == VOYAGER_IOCTL_ENABLE) { + if(arg == 0) { + *(volatile unsigned long *)(VIDEO_ALPHA_DISPLAY_CTRL) &= 0xfffffffb; + } + else { + *(volatile unsigned long *)(VIDEO_ALPHA_DISPLAY_CTRL) |= 0x04; + } + return 0; + } + else if(cmd == VOYAGER_IOCTL_ENABLE_CK) { + if(arg == 0) { + *(volatile unsigned long *)(VIDEO_ALPHA_DISPLAY_CTRL) &= 0xfffffff7; + } + else { + *(volatile unsigned long *)(VIDEO_ALPHA_DISPLAY_CTRL) |= 0x08; + } + return 0; + } + else if(cmd == VOYAGER_IOCTL_ENABLE_AL) { + if(arg == 0) { + *(volatile unsigned long *)(VIDEO_ALPHA_DISPLAY_CTRL) &= 0xefffffff; + } + else { + *(volatile unsigned long *)(VIDEO_ALPHA_DISPLAY_CTRL) |= 0x10000000; + } + return 0; + } + else if(cmd == VOYAGER_IOCTL_SCALE) { + *(volatile unsigned long *)(VIDEO_ALPHA_SCALE) = arg; + return 0; + } + else if(cmd == VOYAGER_IOCTL_CHKEY) { + *(volatile unsigned long *)(VIDEO_ALPHA_CHROMA_KEY) = arg; + return 0; + } + else if(cmd == VOYAGER_IOCTL_TYPE) { + *(volatile unsigned long *)(VIDEO_ALPHA_DISPLAY_CTRL) &= 0xfffffffc; + *(volatile unsigned long *)(VIDEO_ALPHA_DISPLAY_CTRL) |= (arg & 0x03); + return 0; + } + else if(cmd == VOYAGER_IOCTL_ALPHA) { + *(volatile unsigned long *)(VIDEO_ALPHA_DISPLAY_CTRL) &= 0xf0ffffff; + *(volatile unsigned long *)(VIDEO_ALPHA_DISPLAY_CTRL) |= (arg & 0x0f) << 24; + return 0; + } + return -EINVAL; +} + +static void __init voya_hw_init(void) +{ + *(volatile unsigned long *)(VIDEO_ALPHA_FB_ADDRESS) = 0x80000000 + (VOY_VRAM_TOP3 & 0x00ffffff); + change_mode(&voyafb_var); + *(volatile unsigned long *)(VIDEO_ALPHA_SCALE) = 0; + *(volatile unsigned long *)(VIDEO_ALPHA_CHROMA_KEY) = 0; + + *(volatile unsigned long *)(VIDEO_ALPHA_DISPLAY_CTRL) &= 0xfffffff0; +// *(volatile unsigned long *)(VIDEO_ALPHA_DISPLAY_CTRL) |= 0x05; + *(volatile unsigned long *)(VIDEO_ALPHA_DISPLAY_CTRL) |= 0x01; +} + +static struct fb_fix_screeninfo voyafb_fix __initdata = { + .id = "VOYAGER VALPHA", + .type = FB_TYPE_PACKED_PIXELS, + .visual = FB_VISUAL_TRUECOLOR, + .accel = FB_ACCEL_NONE, + .line_length = XRES*2, + .smem_len = MAX_FRAMEBUFFER_MEM_SIZE, +}; + + +static void __init init_voya(struct fb_info *p, unsigned long addr) +{ + p->fix = voyafb_fix; + p->fix.smem_start = addr; + + p->var = voyafb_var; + + p->fbops = &voyafb_ops; + p->flags = FBINFO_FLAG_DEFAULT; + p->pseudo_palette = pseudo_palette; + + fb_alloc_cmap(&p->cmap, 16, 0); + + if (register_framebuffer(p) < 0) { + printk(KERN_ERR "VOYAGER GX VIDEO ALPHA framebuffer failed to register\n"); + return; + } + + printk(KERN_INFO "fb%d: VOYAGER GX_VIDEO_ALPHA frame buffer (%dK RAM detected)\n", + p->node, p->fix.smem_len / 1024); + + voya_hw_init(); +} + +int __init voyafb_init3(void) +{ + struct fb_info *p = &voyafb_info; + unsigned long addr, size; + + addr = VOY_VRAM_TOP3; + size = MAX_FRAMEBUFFER_MEM_SIZE; + p->screen_base = ioremap((u_long)addr, + ALLOCATED_FB_MEM_SIZE); + if (p->screen_base == NULL) { + return -ENOMEM; + } + init_voya(p, addr); + memset(p->screen_base, 0, MAX_FRAMEBUFFER_MEM_SIZE); + + return 0; +} + +static void __exit voyafb_exit(void) +{ + *(volatile unsigned long *)(VIDEO_ALPHA_DISPLAY_CTRL) &= 0xfffffffb; +} + + +//------------------------------------------------------------------------------------ +static int change_mode(struct fb_var_screeninfo *var) +{ +int x,ali,size; + + if((var->xres < 0)||(var->xres > XRES)|| + (var->yres < 0)||(var->yres > YRES)|| + (var->xres_virtual < 0)||(var->xres_virtual > XRES)|| + (var->yres_virtual < 0)||(var->yres_virtual > YRES)|| + (var->xoffset < 0)||(var->xoffset > XRES)|| + (var->yoffset < 0)||(var->yoffset > YRES)) + { + return(-1); + } + x = var->xres_virtual * 2; + ali = x + (x % 16); + *(volatile unsigned long *)(VIDEO_ALPHA_FB_WIDTH) = (ali << 16) | ali; + *(volatile unsigned long *)(VIDEO_ALPHA_PLANE_TL) = (var->yoffset << 16) | + var->xoffset; + *(volatile unsigned long *)(VIDEO_ALPHA_PLANE_BR) = + ((var->yoffset + var->yres - 1) << 16) | + (var->xoffset + var->xres - 1); + size = var->xres_virtual * var->yres_virtual * var->bits_per_pixel / 8; + *(volatile unsigned long *)(VIDEO_ALPHA_FB_LAST_ADDRESS) = 0x80000000 + (VOY_VRAM_TOP3 & 0x00ffffff) + size; + return(0); +} + +MODULE_LICENSE("GPL"); |