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path: root/drivers/video/au1100fb.c
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Diffstat (limited to 'drivers/video/au1100fb.c')
-rw-r--r--drivers/video/au1100fb.c676
1 files changed, 0 insertions, 676 deletions
diff --git a/drivers/video/au1100fb.c b/drivers/video/au1100fb.c
deleted file mode 100644
index b6fe30c3ad6..00000000000
--- a/drivers/video/au1100fb.c
+++ /dev/null
@@ -1,676 +0,0 @@
-/*
- * BRIEF MODULE DESCRIPTION
- * Au1100 LCD Driver.
- *
- * Copyright 2002 MontaVista Software
- * Author: MontaVista Software, Inc.
- * ppopov@mvista.com or source@mvista.com
- *
- * Copyright 2002 Alchemy Semiconductor
- * Author: Alchemy Semiconductor
- *
- * Based on:
- * linux/drivers/video/skeletonfb.c -- Skeleton for a frame buffer device
- * Created 28 Dec 1997 by Geert Uytterhoeven
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#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/delay.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-
-#include <asm/au1000.h>
-#include <asm/pb1100.h>
-#include "au1100fb.h"
-
-#include <video/fbcon.h>
-#include <video/fbcon-mfb.h>
-#include <video/fbcon-cfb2.h>
-#include <video/fbcon-cfb4.h>
-#include <video/fbcon-cfb8.h>
-#include <video/fbcon-cfb16.h>
-
-/*
- * Sanity check. If this is a new Au1100 based board, search for
- * the PB1100 ifdefs to make sure you modify the code accordingly.
- */
-#if defined(CONFIG_MIPS_PB1100) || defined(CONFIG_MIPS_DB1100) || defined(CONFIG_MIPS_HYDROGEN3)
-#else
-error Unknown Au1100 board
-#endif
-
-#define CMAPSIZE 16
-
-static int my_lcd_index; /* default is zero */
-struct known_lcd_panels *p_lcd;
-AU1100_LCD *p_lcd_reg = (AU1100_LCD *)AU1100_LCD_ADDR;
-
-struct au1100fb_info {
- struct fb_info_gen gen;
- unsigned long fb_virt_start;
- unsigned long fb_size;
- unsigned long fb_phys;
- int mmaped;
- int nohwcursor;
-
- struct { unsigned red, green, blue, pad; } palette[256];
-
-#if defined(FBCON_HAS_CFB16)
- u16 fbcon_cmap16[16];
-#endif
-};
-
-
-struct au1100fb_par {
- struct fb_var_screeninfo var;
-
- int line_length; // in bytes
- int cmap_len; // color-map length
-};
-
-
-static struct au1100fb_info fb_info;
-static struct au1100fb_par current_par;
-static struct display disp;
-
-int au1100fb_init(void);
-void au1100fb_setup(char *options, int *ints);
-static int au1100fb_mmap(struct fb_info *fb, struct file *file,
- struct vm_area_struct *vma);
-static int au1100_blank(int blank_mode, struct fb_info_gen *info);
-static int au1100fb_ioctl(struct inode *inode, struct file *file, u_int cmd,
- u_long arg, int con, struct fb_info *info);
-
-void au1100_nocursor(struct display *p, int mode, int xx, int yy){};
-
-static struct fb_ops au1100fb_ops = {
- .owner = THIS_MODULE,
- .fb_get_fix = fbgen_get_fix,
- .fb_get_var = fbgen_get_var,
- .fb_set_var = fbgen_set_var,
- .fb_get_cmap = fbgen_get_cmap,
- .fb_set_cmap = fbgen_set_cmap,
- .fb_pan_display = fbgen_pan_display,
- .fb_ioctl = au1100fb_ioctl,
- .fb_mmap = au1100fb_mmap,
-};
-
-static void au1100_detect(void)
-{
- /*
- * This function should detect the current video mode settings
- * and store it as the default video mode
- */
-
- /*
- * Yeh, well, we're not going to change any settings so we're
- * always stuck with the default ...
- */
-
-}
-
-static int au1100_encode_fix(struct fb_fix_screeninfo *fix,
- const void *_par, struct fb_info_gen *_info)
-{
- struct au1100fb_info *info = (struct au1100fb_info *) _info;
- struct au1100fb_par *par = (struct au1100fb_par *) _par;
- struct fb_var_screeninfo *var = &par->var;
-
- memset(fix, 0, sizeof(struct fb_fix_screeninfo));
-
- fix->smem_start = info->fb_phys;
- fix->smem_len = info->fb_size;
- fix->type = FB_TYPE_PACKED_PIXELS;
- fix->type_aux = 0;
- fix->visual = (var->bits_per_pixel == 8) ?
- FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
- fix->ywrapstep = 0;
- fix->xpanstep = 1;
- fix->ypanstep = 1;
- fix->line_length = current_par.line_length;
- return 0;
-}
-
-static void set_color_bitfields(struct fb_var_screeninfo *var)
-{
- switch (var->bits_per_pixel) {
- case 8:
- var->red.offset = 0;
- var->red.length = 8;
- var->green.offset = 0;
- var->green.length = 8;
- var->blue.offset = 0;
- var->blue.length = 8;
- var->transp.offset = 0;
- var->transp.length = 0;
- break;
- case 16: /* RGB 565 */
- var->red.offset = 11;
- var->red.length = 5;
- var->green.offset = 5;
- var->green.length = 6;
- var->blue.offset = 0;
- var->blue.length = 5;
- var->transp.offset = 0;
- var->transp.length = 0;
- break;
- }
-
- var->red.msb_right = 0;
- var->green.msb_right = 0;
- var->blue.msb_right = 0;
- var->transp.msb_right = 0;
-}
-
-static int au1100_decode_var(const struct fb_var_screeninfo *var,
- void *_par, struct fb_info_gen *_info)
-{
-
- struct au1100fb_par *par = (struct au1100fb_par *)_par;
-
- /*
- * Don't allow setting any of these yet: xres and yres don't
- * make sense for LCD panels.
- */
- if (var->xres != p_lcd->xres ||
- var->yres != p_lcd->yres ||
- var->xres != p_lcd->xres ||
- var->yres != p_lcd->yres) {
- return -EINVAL;
- }
- if(var->bits_per_pixel != p_lcd->bpp) {
- return -EINVAL;
- }
-
- memset(par, 0, sizeof(struct au1100fb_par));
- par->var = *var;
-
- /* FIXME */
- switch (var->bits_per_pixel) {
- case 8:
- par->var.bits_per_pixel = 8;
- break;
- case 16:
- par->var.bits_per_pixel = 16;
- break;
- default:
- printk("color depth %d bpp not supported\n",
- var->bits_per_pixel);
- return -EINVAL;
-
- }
- set_color_bitfields(&par->var);
- par->cmap_len = (par->var.bits_per_pixel == 8) ? 256 : 16;
- return 0;
-}
-
-static int au1100_encode_var(struct fb_var_screeninfo *var,
- const void *par, struct fb_info_gen *_info)
-{
-
- *var = ((struct au1100fb_par *)par)->var;
- return 0;
-}
-
-static void
-au1100_get_par(void *_par, struct fb_info_gen *_info)
-{
- *(struct au1100fb_par *)_par = current_par;
-}
-
-static void au1100_set_par(const void *par, struct fb_info_gen *info)
-{
- /* nothing to do: we don't change any settings */
-}
-
-static int au1100_getcolreg(unsigned regno, unsigned *red, unsigned *green,
- unsigned *blue, unsigned *transp,
- struct fb_info *info)
-{
-
- struct au1100fb_info* i = (struct au1100fb_info*)info;
-
- if (regno > 255)
- return 1;
-
- *red = i->palette[regno].red;
- *green = i->palette[regno].green;
- *blue = i->palette[regno].blue;
- *transp = 0;
-
- return 0;
-}
-
-static int au1100_setcolreg(unsigned regno, unsigned red, unsigned green,
- unsigned blue, unsigned transp,
- struct fb_info *info)
-{
- struct au1100fb_info* i = (struct au1100fb_info *)info;
- u32 rgbcol;
-
- if (regno > 255)
- return 1;
-
- i->palette[regno].red = red;
- i->palette[regno].green = green;
- i->palette[regno].blue = blue;
-
- switch(p_lcd->bpp) {
-#ifdef FBCON_HAS_CFB8
- case 8:
- red >>= 10;
- green >>= 10;
- blue >>= 10;
- p_lcd_reg->lcd_pallettebase[regno] = (blue&0x1f) |
- ((green&0x3f)<<5) | ((red&0x1f)<<11);
- break;
-#endif
-#ifdef FBCON_HAS_CFB16
- case 16:
- i->fbcon_cmap16[regno] =
- ((red & 0xf800) >> 0) |
- ((green & 0xfc00) >> 5) |
- ((blue & 0xf800) >> 11);
- break;
-#endif
- default:
- break;
- }
-
- return 0;
-}
-
-
-static int au1100_blank(int blank_mode, struct fb_info_gen *_info)
-{
-
- switch (blank_mode) {
- case VESA_NO_BLANKING:
- /* turn on panel */
- //printk("turn on panel\n");
-#ifdef CONFIG_MIPS_PB1100
- p_lcd_reg->lcd_control |= LCD_CONTROL_GO;
- au_writew(au_readw(PB1100_G_CONTROL) | p_lcd->mode_backlight,
- PB1100_G_CONTROL);
-#endif
-#ifdef CONFIG_MIPS_HYDROGEN3
- /* Turn controller & power supply on, GPIO213 */
- au_writel(0x20002000, 0xB1700008);
- au_writel(0x00040000, 0xB1900108);
- au_writel(0x01000100, 0xB1700008);
-#endif
- au_sync();
- break;
-
- case VESA_VSYNC_SUSPEND:
- case VESA_HSYNC_SUSPEND:
- case VESA_POWERDOWN:
- /* turn off panel */
- //printk("turn off panel\n");
-#ifdef CONFIG_MIPS_PB1100
- au_writew(au_readw(PB1100_G_CONTROL) & ~p_lcd->mode_backlight,
- PB1100_G_CONTROL);
- p_lcd_reg->lcd_control &= ~LCD_CONTROL_GO;
-#endif
- au_sync();
- break;
- default:
- break;
-
- }
- return 0;
-}
-
-static void au1100_set_disp(const void *unused, struct display *disp,
- struct fb_info_gen *info)
-{
- disp->screen_base = (char *)fb_info.fb_virt_start;
-
- switch (disp->var.bits_per_pixel) {
-#ifdef FBCON_HAS_CFB8
- case 8:
- disp->dispsw = &fbcon_cfb8;
- if (fb_info.nohwcursor)
- fbcon_cfb8.cursor = au1100_nocursor;
- break;
-#endif
-#ifdef FBCON_HAS_CFB16
- case 16:
- disp->dispsw = &fbcon_cfb16;
- disp->dispsw_data = fb_info.fbcon_cmap16;
- if (fb_info.nohwcursor)
- fbcon_cfb16.cursor = au1100_nocursor;
- break;
-#endif
- default:
- disp->dispsw = &fbcon_dummy;
- disp->dispsw_data = NULL;
- break;
- }
-}
-
-static int
-au1100fb_mmap(struct fb_info *_fb,
- struct file *file,
- struct vm_area_struct *vma)
-{
- unsigned int len;
- unsigned long start=0, off;
- struct au1100fb_info *fb = (struct au1100fb_info *)_fb;
-
- if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) {
- return -EINVAL;
- }
-
- start = fb_info.fb_phys & PAGE_MASK;
- len = PAGE_ALIGN((start & ~PAGE_MASK) + fb_info.fb_size);
-
- off = vma->vm_pgoff << PAGE_SHIFT;
-
- if ((vma->vm_end - vma->vm_start + off) > len) {
- return -EINVAL;
- }
-
- off += start;
- vma->vm_pgoff = off >> PAGE_SHIFT;
-
- pgprot_val(vma->vm_page_prot) &= ~_CACHE_MASK;
- //pgprot_val(vma->vm_page_prot) |= _CACHE_CACHABLE_NONCOHERENT;
- pgprot_val(vma->vm_page_prot) |= (6 << 9); //CCA=6
-
- /* This is an IO map - tell maydump to skip this VMA */
- vma->vm_flags |= VM_IO;
-
- if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
- vma->vm_end - vma->vm_start,
- vma->vm_page_prot)) {
- return -EAGAIN;
- }
-
- fb->mmaped = 1;
- return 0;
-}
-
-int au1100_pan_display(const struct fb_var_screeninfo *var,
- struct fb_info_gen *info)
-{
- return 0;
-}
-
-static int au1100fb_ioctl(struct inode *inode, struct file *file, u_int cmd,
- u_long arg, int con, struct fb_info *info)
-{
- /* nothing to do yet */
- return -EINVAL;
-}
-
-static struct fbgen_hwswitch au1100_switch = {
- au1100_detect,
- au1100_encode_fix,
- au1100_decode_var,
- au1100_encode_var,
- au1100_get_par,
- au1100_set_par,
- au1100_getcolreg,
- au1100_setcolreg,
- au1100_pan_display,
- au1100_blank,
- au1100_set_disp
-};
-
-
-int au1100_setmode(void)
-{
- int words;
-
- /* FIXME Need to accomodate for swivel mode and 12bpp, <8bpp*/
- switch (p_lcd->mode_control & LCD_CONTROL_SM)
- {
- case LCD_CONTROL_SM_0:
- case LCD_CONTROL_SM_180:
- words = (p_lcd->xres * p_lcd->yres * p_lcd->bpp) / 32;
- break;
- case LCD_CONTROL_SM_90:
- case LCD_CONTROL_SM_270:
- /* is this correct? */
- words = (p_lcd->xres * p_lcd->bpp) / 8;
- break;
- default:
- printk("mode_control reg not initialized\n");
- return -EINVAL;
- }
-
- /*
- * Setup LCD controller
- */
-
- p_lcd_reg->lcd_control = p_lcd->mode_control;
- p_lcd_reg->lcd_intstatus = 0;
- p_lcd_reg->lcd_intenable = 0;
- p_lcd_reg->lcd_horztiming = p_lcd->mode_horztiming;
- p_lcd_reg->lcd_verttiming = p_lcd->mode_verttiming;
- p_lcd_reg->lcd_clkcontrol = p_lcd->mode_clkcontrol;
- p_lcd_reg->lcd_words = words - 1;
- p_lcd_reg->lcd_dmaaddr0 = fb_info.fb_phys;
-
- /* turn on panel */
-#ifdef CONFIG_MIPS_PB1100
- au_writew(au_readw(PB1100_G_CONTROL) | p_lcd->mode_backlight,
- PB1100_G_CONTROL);
-#endif
-#ifdef CONFIG_MIPS_HYDROGEN3
- /* Turn controller & power supply on, GPIO213 */
- au_writel(0x20002000, 0xB1700008);
- au_writel(0x00040000, 0xB1900108);
- au_writel(0x01000100, 0xB1700008);
-#endif
-
- p_lcd_reg->lcd_control |= LCD_CONTROL_GO;
-
- return 0;
-}
-
-
-int __init au1100fb_init(void)
-{
- uint32 sys_clksrc;
- unsigned long page;
-
- /*
- * Get the panel information/display mode and update the registry
- */
- p_lcd = &panels[my_lcd_index];
-
- switch (p_lcd->mode_control & LCD_CONTROL_SM)
- {
- case LCD_CONTROL_SM_0:
- case LCD_CONTROL_SM_180:
- p_lcd->xres =
- (p_lcd->mode_horztiming & LCD_HORZTIMING_PPL) + 1;
- p_lcd->yres =
- (p_lcd->mode_verttiming & LCD_VERTTIMING_LPP) + 1;
- break;
- case LCD_CONTROL_SM_90:
- case LCD_CONTROL_SM_270:
- p_lcd->yres =
- (p_lcd->mode_horztiming & LCD_HORZTIMING_PPL) + 1;
- p_lcd->xres =
- (p_lcd->mode_verttiming & LCD_VERTTIMING_LPP) + 1;
- break;
- }
-
- /*
- * Panel dimensions x bpp must be divisible by 32
- */
- if (((p_lcd->yres * p_lcd->bpp) % 32) != 0)
- printk("VERT %% 32\n");
- if (((p_lcd->xres * p_lcd->bpp) % 32) != 0)
- printk("HORZ %% 32\n");
-
- /*
- * Allocate LCD framebuffer from system memory
- */
- fb_info.fb_size = (p_lcd->xres * p_lcd->yres * p_lcd->bpp) / 8;
-
- current_par.var.xres = p_lcd->xres;
- current_par.var.xres_virtual = p_lcd->xres;
- current_par.var.yres = p_lcd->yres;
- current_par.var.yres_virtual = p_lcd->yres;
- current_par.var.bits_per_pixel = p_lcd->bpp;
-
- /* FIX!!! only works for 8/16 bpp */
- current_par.line_length = p_lcd->xres * p_lcd->bpp / 8; /* in bytes */
- fb_info.fb_virt_start = (unsigned long )
- __get_free_pages(GFP_ATOMIC | GFP_DMA,
- get_order(fb_info.fb_size + 0x1000));
- if (!fb_info.fb_virt_start) {
- printk("Unable to allocate fb memory\n");
- return -ENOMEM;
- }
- fb_info.fb_phys = virt_to_bus((void *)fb_info.fb_virt_start);
-
- /*
- * Set page reserved so that mmap will work. This is necessary
- * since we'll be remapping normal memory.
- */
- for (page = fb_info.fb_virt_start;
- page < PAGE_ALIGN(fb_info.fb_virt_start + fb_info.fb_size);
- page += PAGE_SIZE) {
- SetPageReserved(virt_to_page(page));
- }
-
- memset((void *)fb_info.fb_virt_start, 0, fb_info.fb_size);
-
- /* set freqctrl now to allow more time to stabilize */
- /* zero-out out LCD bits */
- sys_clksrc = au_readl(SYS_CLKSRC) & ~0x000003e0;
- sys_clksrc |= p_lcd->mode_toyclksrc;
- au_writel(sys_clksrc, SYS_CLKSRC);
-
- /* FIXME add check to make sure auxpll is what is expected! */
- au1100_setmode();
-
- fb_info.gen.parsize = sizeof(struct au1100fb_par);
- fb_info.gen.fbhw = &au1100_switch;
-
- strcpy(fb_info.gen.info.modename, "Au1100 LCD");
- fb_info.gen.info.changevar = NULL;
- fb_info.gen.info.node = -1;
-
- fb_info.gen.info.fbops = &au1100fb_ops;
- fb_info.gen.info.disp = &disp;
- fb_info.gen.info.switch_con = &fbgen_switch;
- fb_info.gen.info.updatevar = &fbgen_update_var;
- fb_info.gen.info.blank = &fbgen_blank;
- fb_info.gen.info.flags = FBINFO_FLAG_DEFAULT;
-
- /* This should give a reasonable default video mode */
- fbgen_get_var(&disp.var, -1, &fb_info.gen.info);
- fbgen_do_set_var(&disp.var, 1, &fb_info.gen);
- fbgen_set_disp(-1, &fb_info.gen);
- fbgen_install_cmap(0, &fb_info.gen);
- if (register_framebuffer(&fb_info.gen.info) < 0)
- return -EINVAL;
- printk(KERN_INFO "fb%d: %s frame buffer device\n",
- GET_FB_IDX(fb_info.gen.info.node),
- fb_info.gen.info.modename);
-
- return 0;
-}
-
-
-void au1100fb_cleanup(struct fb_info *info)
-{
- unregister_framebuffer(info);
-}
-
-
-void au1100fb_setup(char *options, int *ints)
-{
- char* this_opt;
- int i;
- int num_panels = sizeof(panels)/sizeof(struct known_lcd_panels);
-
-
- if (!options || !*options)
- return;
-
- for(this_opt=strtok(options, ","); this_opt;
- this_opt=strtok(NULL, ",")) {
- if (!strncmp(this_opt, "panel:", 6)) {
-#if defined(CONFIG_MIPS_PB1100) || defined(CONFIG_MIPS_DB1100)
- /* Read Pb1100 Switch S10 ? */
- if (!strncmp(this_opt+6, "s10", 3))
- {
- int panel;
- panel = *(volatile int *)0xAE000008; /* BCSR SWITCHES */
- panel >>= 8;
- panel &= 0x0F;
- if (panel >= num_panels) panel = 0;
- my_lcd_index = panel;
- }
- else
-#endif
- /* Get the panel name, everything else if fixed */
- for (i=0; i<num_panels; i++) {
- if (!strncmp(this_opt+6, panels[i].panel_name,
- strlen(this_opt))) {
- my_lcd_index = i;
- break;
- }
- }
- }
- else if (!strncmp(this_opt, "nohwcursor", 10)) {
- printk("nohwcursor\n");
- fb_info.nohwcursor = 1;
- }
- }
-
- printk("au1100fb: Panel %d %s\n", my_lcd_index,
- panels[my_lcd_index].panel_name);
-}
-
-
-
-#ifdef MODULE
-MODULE_LICENSE("GPL");
-int init_module(void)
-{
- return au1100fb_init();
-}
-
-void cleanup_module(void)
-{
- au1100fb_cleanup(void);
-}
-
-MODULE_AUTHOR("Pete Popov <ppopov@mvista.com>");
-MODULE_DESCRIPTION("Au1100 LCD framebuffer device driver");
-#endif /* MODULE */
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