epson1356fb.c
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- /*
- * epson1356fb.c -- Epson SED1356 Framebuffer Driver
- *
- * Copyright 2001, 2002 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * stevel@mvista.com or source@mvista.com
- *
- * 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.
- *
- *
- * TODO:
- *
- * Revision history
- * 03.12.2001 0.1 Initial release
- *
- */
- #include <linux/config.h>
- #include <linux/version.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/selection.h>
- #include <linux/console.h>
- #include <linux/init.h>
- #include <linux/pci.h>
- #include <linux/nvram.h>
- #include <linux/kd.h>
- #include <linux/vt_kern.h>
- #include <asm/io.h>
- #include <asm/uaccess.h>
- #include <linux/timer.h>
- #include <linux/pagemap.h>
- #include <asm/pgalloc.h>
- #include <asm/uaccess.h>
- #include <asm/tlb.h>
- #ifdef CONFIG_MTRR
- #include <asm/mtrr.h>
- #endif
- #include <video/fbcon.h>
- #include <video/fbcon-cfb8.h>
- #include <video/fbcon-cfb16.h>
- #include <video/fbcon-cfb24.h>
- #include <video/fbcon-cfb32.h>
- #include <linux/spinlock.h>
- #include <linux/e1356fb.h>
- #ifdef CONFIG_MIPS_AU1000
- #include <asm/au1000.h>
- #endif
- #define E1356FB_DEBUG 1
- #undef E1356FB_VERBOSE_DEBUG
- #undef SHADOW_FRAME_BUFFER
- #include "epson1356fb.h"
- static char *options;
- MODULE_PARM(options, "s");
- /*
- * Frame buffer device API
- */
- static int e1356fb_open(struct fb_info *fb, int user);
- static int e1356fb_release(struct fb_info *fb, int user);
- static int e1356fb_get_fix(struct fb_fix_screeninfo* fix,
- int con,
- struct fb_info* fb);
- static int e1356fb_get_var(struct fb_var_screeninfo* var,
- int con,
- struct fb_info* fb);
- static int e1356fb_set_var(struct fb_var_screeninfo* var,
- int con,
- struct fb_info* fb);
- static int e1356fb_pan_display(struct fb_var_screeninfo* var,
- int con,
- struct fb_info* fb);
- static int e1356fb_get_cmap(struct fb_cmap *cmap,
- int kspc,
- int con,
- struct fb_info* info);
- static int e1356fb_set_cmap(struct fb_cmap* cmap,
- int kspc,
- int con,
- struct fb_info* info);
- static int e1356fb_ioctl(struct inode* inode,
- struct file* file,
- u_int cmd,
- u_long arg,
- int con,
- struct fb_info* info);
- static int e1356fb_mmap(struct fb_info *info,
- struct file *file,
- struct vm_area_struct *vma);
- /*
- * Interface to the low level console driver
- */
- static int e1356fb_switch_con(int con,
- struct fb_info* fb);
- static int e1356fb_updatevar(int con,
- struct fb_info* fb);
- static void e1356fb_blank(int blank,
- struct fb_info* fb);
- /*
- * Internal routines
- */
- static void e1356fb_set_par(const struct e1356fb_par* par,
- struct fb_info_e1356*
- info);
- static int e1356fb_var_to_par(const struct fb_var_screeninfo *var,
- struct e1356fb_par* par,
- const struct fb_info_e1356* info);
- static int e1356fb_par_to_var(struct fb_var_screeninfo* var,
- struct e1356fb_par* par,
- const struct fb_info_e1356* info);
- static int e1356fb_encode_fix(struct fb_fix_screeninfo* fix,
- const struct e1356fb_par* par,
- const struct fb_info_e1356* info);
- static void e1356fb_set_dispsw(struct display* disp,
- struct fb_info_e1356* info,
- int bpp,
- int accel);
- static int e1356fb_getcolreg(u_int regno,
- u_int* red,
- u_int* green,
- u_int* blue,
- u_int* transp,
- struct fb_info* fb);
- static int e1356fb_setcolreg(u_int regno,
- u_int red,
- u_int green,
- u_int blue,
- u_int transp,
- struct fb_info* fb);
- static void e1356fb_install_cmap(struct display *d,
- struct fb_info *info);
- static void e1356fb_hwcursor_init(struct fb_info_e1356* info);
- static void e1356fb_createcursorshape(struct display* p);
- static void e1356fb_createcursor(struct display * p);
- /*
- * do_xxx: Hardware-specific functions
- */
- static void do_pan_var(struct fb_var_screeninfo* var,
- struct fb_info_e1356* i);
- static void do_flashcursor(unsigned long ptr);
- static void doBlt_Move(const struct e1356fb_par* par,
- struct fb_info_e1356* i,
- blt_info_t* blt);
- static void doBlt_SolidFill(const struct e1356fb_par* par,
- struct fb_info_e1356* i,
- blt_info_t* blt);
- /*
- * Interface used by the world
- */
- int e1356fb_init(void);
- void e1356fb_setup(char *options, int *ints);
- static int currcon = 0;
- static struct fb_ops e1356fb_ops = {
- owner: THIS_MODULE,
- fb_open: e1356fb_open,
- fb_release: e1356fb_release,
- fb_get_fix: e1356fb_get_fix,
- fb_get_var: e1356fb_get_var,
- fb_set_var: e1356fb_set_var,
- fb_get_cmap: e1356fb_get_cmap,
- fb_set_cmap: e1356fb_set_cmap,
- fb_pan_display: e1356fb_pan_display,
- fb_mmap: e1356fb_mmap,
- };
- #define PCI_VENDOR_ID_EPSON 0x10f4
- #define PCI_DEVICE_ID_EPSON_SDU1356 0x1300
- static struct fb_info_e1356 fb_info;
- static struct e1356fb_fix boot_fix; // boot options
- static struct e1356fb_par boot_par; // boot options
- static int e1356_remap_page_range(unsigned long from, phys_t phys_addr, unsigned long size, pgprot_t prot);
- /* -------------------------------------------------------------------------
- * Hardware-specific funcions
- * ------------------------------------------------------------------------- */
- /*
- * The SED1356 has only a 16-bit wide data bus, so some embedded
- * implementations with 32-bit CPU's (Alchemy Pb1000) may not
- * correctly emulate a 32-bit write to the framebuffer by splitting
- * the write into two seperate 16-bit writes. So it is safest to
- * only do byte or half-word writes to the fb. This routine assumes
- * fbaddr is atleast aligned on a half-word boundary.
- */
- static inline void
- fbfill(u16* fbaddr, u8 val, int size)
- {
- u16 valw = (u16)val | ((u16)val << 8);
- for ( ; size >= 2; size -= 2)
- writew(valw, fbaddr++);
- if (size)
- writeb(val, (u8*)fbaddr);
- }
- static inline int
- e1356_wait_bitclr(u8* reg, u8 bit, int timeout)
- {
- while (readb(reg) & bit) {
- udelay(10);
- if (!--timeout)
- break;
- }
- return timeout;
- }
- static inline int
- e1356_wait_bitset(u8* reg, u8 bit, int timeout)
- {
- while (!(readb(reg) & bit)) {
- udelay(10);
- if (!--timeout)
- break;
- }
- return timeout;
- }
- static struct fb_videomode panel_modedb[] = {
- {
- /* 320x240 @ 109 Hz, 33.3 kHz hsync */
- NULL, 109, 320, 240, KHZ2PICOS(MAX_PIXCLOCK/3),
- 16, 16, 32, 24, 48, 8,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* 640x480 @ 84 Hz, 48.1 kHz hsync */
- NULL, 84, 640, 480, KHZ2PICOS(MAX_PIXCLOCK/1),
- 96, 32, 32, 48, 64, 8,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* 800x600 @ 76 Hz, 46.3 kHz hsync */
- NULL, 76, 800, 600, KHZ2PICOS(MAX_PIXCLOCK/1),
- 32, 10, 1, 1, 22, 1,
- 0, FB_VMODE_NONINTERLACED
- }
- };
- static struct fb_videomode crt_modedb[] = {
- {
- /* 320x240 @ 84 Hz, 31.25 kHz hsync */
- NULL, 84, 320, 240, KHZ2PICOS(MAX_PIXCLOCK/2),
- 128, 128, 60, 60, 64, 8,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* 320x240 @ 109 Hz, 33.3 kHz hsync */
- NULL, 109, 320, 240, KHZ2PICOS(MAX_PIXCLOCK/3),
- 16, 16, 32, 24, 48, 8,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* 512x384 @ 77 Hz, 31.25 kHz hsync */
- NULL, 77, 512, 384, KHZ2PICOS(MAX_PIXCLOCK/2),
- 48, 16, 16, 1, 64, 3,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* 640x400 @ 88 Hz, 43.1 kHz hsync */
- NULL, 88, 640, 400, KHZ2PICOS(MAX_PIXCLOCK/1),
- 128, 96, 32, 48, 64, 8,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* 640x480 @ 84 Hz, 48.1 kHz hsync */
- NULL, 84, 640, 480, KHZ2PICOS(MAX_PIXCLOCK/1),
- 96, 32, 32, 48, 64, 8,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* 768x576 @ 62 Hz, 38.5 kHz hsync */
- NULL, 62, 768, 576, KHZ2PICOS(MAX_PIXCLOCK/1),
- 144, 16, 28, 6, 112, 4,
- 0, FB_VMODE_NONINTERLACED
- }, {
- /* 800x600 @ 60 Hz, 37.9 kHz hsync */
- NULL, 60, 800, 600, KHZ2PICOS(MAX_PIXCLOCK/1),
- 88, 40, 23, 1, 128, 4,
- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
- FB_VMODE_NONINTERLACED
- }
- };
- static struct fb_videomode ntsc_modedb[] = {
- {
- /* 640x480 @ 62 Hz, requires flicker filter */
- //NULL, 62, 640, 480, 34921, 213, 57, 20, 2, 0, 0,
- NULL, 62, 640, 480, KHZ2PICOS(2*NTSC_PIXCLOCK),
- 200, 70, 15, 7, 0, 0,
- FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
- }
- };
- static struct fb_videomode pal_modedb[] = {
- {
- /* 640x480 @ 56 Hz, requires flicker filter */
- NULL, 56, 640, 480, KHZ2PICOS(2*PAL_PIXCLOCK),
- 350, 145, 49, 23, 0, 0,
- FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
- }
- };
- static inline void
- fb_videomode_to_var(struct fb_videomode* mode,
- struct fb_var_screeninfo*var)
- {
- var->xres = mode->xres;
- var->yres = mode->yres;
- var->pixclock = mode->pixclock;
- var->left_margin = mode->left_margin;
- var->right_margin = mode->right_margin;
- var->upper_margin = mode->upper_margin;
- var->lower_margin = mode->lower_margin;
- var->hsync_len = mode->hsync_len;
- var->vsync_len = mode->vsync_len;
- var->sync = mode->sync;
- var->vmode = mode->vmode;
- }
- static int
- e1356fb_get_mode(const struct fb_info_e1356 *info,
- int xres,
- int yres,
- struct fb_videomode ** modedb,
- struct fb_videomode ** mode)
- {
- struct fb_videomode * ret;
- int i, dbsize;
- if (IS_PANEL(info->fix.disp_type)) {
- ret = panel_modedb;
- dbsize = sizeof(panel_modedb)/sizeof(struct fb_videomode);
- } else if (info->fix.disp_type == DISP_TYPE_CRT) {
- ret = crt_modedb;
- dbsize = sizeof(crt_modedb)/sizeof(struct fb_videomode);
- } else if (info->fix.disp_type == DISP_TYPE_NTSC) {
- ret = ntsc_modedb;
- dbsize = sizeof(ntsc_modedb)/sizeof(struct fb_videomode);
- } else {
- ret = pal_modedb;
- dbsize = sizeof(pal_modedb)/sizeof(struct fb_videomode);
- }
-
- if (modedb)
- *modedb = ret;
- for (i=0; i<dbsize; i++) {
- if (xres == ret[i].xres && yres == ret[i].yres) {
- *mode = &ret[i];
- break;
- }
- }
- if (i == dbsize)
- return -EINVAL;
- return dbsize;
- }
- #ifdef E1356FB_VERBOSE_DEBUG
- static void
- dump_par(const struct e1356fb_par* par)
- {
- DPRINTK("width: %dn", par->width);
- DPRINTK("height: %dn", par->height);
- DPRINTK("width_virt: %dn", par->width_virt);
- DPRINTK("height_virt: %dn", par->height_virt);
- DPRINTK("bpp: %dn", par->bpp);
- DPRINTK("pixclock: %dn", par->ipclk.pixclk);
- DPRINTK("horiz_ndp: %dn", par->horiz_ndp);
- DPRINTK("vert_ndp: %dn", par->vert_ndp);
- DPRINTK("hsync_pol: %dn", par->hsync_pol);
- DPRINTK("hsync_start: %dn", par->hsync_start);
- DPRINTK("hsync_width: %dn", par->hsync_width);
- DPRINTK("vsync_pol: %dn", par->vsync_pol);
- DPRINTK("vsync_start: %dn", par->vsync_start);
- DPRINTK("vsync_width: %dn", par->vsync_width);
- DPRINTK("cmap_len: %dn", par->cmap_len);
- }
- static void
- dump_display_regs(reg_dispcfg_t* dispcfg, reg_dispmode_t* dispmode)
- {
- DPRINTK("hdw: 0x%02xn", readb(&dispcfg->hdw));
- DPRINTK("hndp: 0x%02xn", readb(&dispcfg->hndp));
- DPRINTK("hsync_start: 0x%02xn", readb(&dispcfg->hsync_start));
- DPRINTK("hsync_pulse: 0x%02xn", readb(&dispcfg->hsync_pulse));
- DPRINTK("vdh0: 0x%02xn", readb(&dispcfg->vdh0));
- DPRINTK("vdh1: 0x%02xn", readb(&dispcfg->vdh1));
- DPRINTK("vndp: 0x%02xn", readb(&dispcfg->vndp));
- DPRINTK("vsync_start: 0x%02xn", readb(&dispcfg->vsync_start));
- DPRINTK("vsync_pulse: 0x%02xn", readb(&dispcfg->vsync_pulse));
- DPRINTK("tv_output_ctrl: 0x%02xnn", readb(&dispcfg->tv_output_ctrl));
- DPRINTK("disp_mode: 0x%02xn", readb(&dispmode->disp_mode));
- DPRINTK("lcd_misc: 0x%02xn", readb(&dispmode->lcd_misc));
- DPRINTK("start_addr0: 0x%02xn", readb(&dispmode->start_addr0));
- DPRINTK("start_addr1: 0x%02xn", readb(&dispmode->start_addr1));
- DPRINTK("start_addr2: 0x%02xn", readb(&dispmode->start_addr2));
- DPRINTK("mem_addr_offset0: 0x%02xn", readb(&dispmode->mem_addr_offset0));
- DPRINTK("mem_addr_offset1: 0x%02xn", readb(&dispmode->mem_addr_offset1));
- DPRINTK("pixel_panning: 0x%02xn", readb(&dispmode->pixel_panning));
- DPRINTK("fifo_high_thresh: 0x%02xn", readb(&dispmode->fifo_high_thresh));
- DPRINTK("fifo_low_thresh: 0x%02xn", readb(&dispmode->fifo_low_thresh));
- }
- static void
- dump_fb(u8* base, int len)
- {
- int i;
- DPRINTK("FB memory dump, start 0x%p, len %d", base, len);
- for (i=0; i<len; i++) {
- if (!(i%16))
- printk("n%p: %02x ", &base[i], readb(&base[i]));
- else
- printk("%02x ", readb(&base[i]));
- }
- printk("n");
- }
- #endif // E1356FB_VERBOSE_DEBUG
- // Input: ipclk->clksrc, ipclk->pixclk_d
- // Output: ipclk->pixclk, ipclk->error, and ipclk->divisor
- static int
- get_nearest_pixclk_div(pixclock_info_t* ipclk, int x2)
- {
- int pixclk_d = ipclk->pixclk_d;
- int clksrc = ipclk->clksrc;
- if (x2) clksrc *= 2;
- if (clksrc < (3*pixclk_d+1)/2)
- ipclk->divisor = 1;
- else if (clksrc < (5*pixclk_d+1)/2)
- ipclk->divisor = 2;
- else if (clksrc < (7*pixclk_d+1)/2)
- ipclk->divisor = 3;
- else if (clksrc < (9*pixclk_d+1)/2)
- ipclk->divisor = 4;
- else
- return -ENXIO;
- ipclk->pixclk = clksrc / ipclk->divisor;
- ipclk->error = (100*(pixclk_d - ipclk->pixclk)) / pixclk_d;
- return 0;
- }
- static int
- e1356_calc_pixclock(const struct fb_info_e1356 *info,
- pixclock_info_t* ipclk)
- {
- int src_sel=-1, flicker_mult=0;
- pixclock_info_t test, ret;
-
- if (ipclk->pixclk > info->max_pixclock)
- return -ENXIO;
- test.pixclk_d = ipclk->pixclk_d;
- ret.error = 100;
-
- if (IS_TV(info->fix.disp_type) &&
- (info->fix.tv_filt & TV_FILT_FLICKER))
- flicker_mult = 0x80;
-
- test.clksrc = info->fix.busclk;
- if (get_nearest_pixclk_div(&test, flicker_mult != 0) == 0 &&
- abs(test.error) < abs(ret.error)) {
- ret = test;
- src_sel = 0x01;
- }
- test.clksrc = info->fix.mclk;
- if (get_nearest_pixclk_div(&test, flicker_mult != 0) == 0 &&
- abs(test.error) < abs(ret.error)) {
- ret = test;
- src_sel = 0x03;
- }
- test.clksrc = info->fix.clki;
- if (get_nearest_pixclk_div(&test, flicker_mult != 0) == 0 &&
- abs(test.error) < abs(ret.error)) {
- ret = test;
- src_sel = 0x00;
- }
- test.clksrc = info->fix.clki2;
- if (get_nearest_pixclk_div(&test, flicker_mult != 0) == 0 &&
- abs(test.error) < abs(ret.error)) {
- ret = test;
- src_sel = 0x02;
- }
- if (ret.error > MAX_PCLK_ERROR_LOWER ||
- ret.error < MAX_PCLK_ERROR_HIGHER)
- return -ENXIO;
-
- ret.pixclk_bits = flicker_mult | ((ret.divisor-1)<<4) | src_sel;
- *ipclk = ret;
- return 0;
- }
- static inline int
- e1356_engine_wait_complete(reg_bitblt_t* bltreg)
- {
- return e1356_wait_bitclr(&bltreg->ctrl0, 0x80, 5000);
- }
- static inline int
- e1356_engine_wait_busy(reg_bitblt_t* bltreg)
- {
- return e1356_wait_bitset(&bltreg->ctrl0, 0x80, 5000);
- }
- static void
- e1356fb_engine_init(const struct e1356fb_par* par,
- struct fb_info_e1356* info)
- {
- reg_bitblt_t* bltreg = info->reg.bitblt;
-
- e1356_engine_wait_complete(bltreg);
- writeb(0, &bltreg->ctrl0);
- writeb(0, &bltreg->ctrl1);
- writeb(0, &bltreg->rop_code);
- writeb(0, &bltreg->operation);
- writeb(0, &bltreg->src_start_addr0);
- writeb(0, &bltreg->src_start_addr1);
- writeb(0, &bltreg->src_start_addr2);
- writeb(0, &bltreg->dest_start_addr0);
- writeb(0, &bltreg->dest_start_addr1);
- writeb(0, &bltreg->dest_start_addr2);
- writew(0, &bltreg->mem_addr_offset0);
- writew(0, &bltreg->width0);
- writew(0, &bltreg->height0);
- writew(0, &bltreg->bg_color0);
- writew(0, &bltreg->fg_color0);
- }
- static void doBlt_Write(const struct e1356fb_par* par,
- struct fb_info_e1356* info,
- blt_info_t* blt)
- {
- reg_bitblt_t* bltreg = info->reg.bitblt;
- int nWords, nTotalWords;
- u32 srcphase, dstAddr;
- u16* w16;
- u32 stride = par->width_virt * par->Bpp;
- dstAddr = blt->dst_x * par->Bpp + blt->dst_y * stride;
- srcphase = (u32)blt->src & 1;
-
- if (blt->attribute & BLT_ATTR_TRANSPARENT)
- writew(blt->bg_color, &bltreg->bg_color0);
- else
- writeb(blt->rop, &bltreg->rop_code);
-
- writeb(blt->operation, &bltreg->operation);
- writeb((u8)srcphase, &bltreg->src_start_addr0);
- writew(stride/2, &bltreg->mem_addr_offset0);
- writeb(dstAddr, &bltreg->dest_start_addr0);
- writeb(dstAddr>>8, &bltreg->dest_start_addr1);
- writeb(dstAddr>>16, &bltreg->dest_start_addr2);
- writew(blt->dst_width-1, &bltreg->width0);
- writew(blt->dst_height-1, &bltreg->height0);
- // program color format operation
- writeb(par->bpp == 8 ? 0x00 : 0x01, &bltreg->ctrl1);
- // start it up
- writeb(0x80, &bltreg->ctrl0);
- // wait for it to actually start
- e1356_engine_wait_busy(bltreg);
- // calculate the number of 16 bit words per one blt line
- nWords = srcphase + ((blt->dst_width - srcphase)*par->Bpp + 1) / 2;
- nTotalWords = nWords*blt->dst_height;
- w16 = (u16*)((u32)blt->src & 0xfffffffe); // Word aligned
- while (nTotalWords > 0) {
- int j, nFIFO;
- u8 ctrl0;
- // read the FIFO status
- ctrl0 = readb(&bltreg->ctrl0);
- if ((ctrl0 & 0x30) == 0x20)
- // FIFO is at least half full, but not full
- nFIFO = 1;
- else if ((ctrl0 & 0x40) == 0)
- // FIFO is empty
- nFIFO = 16;
- else
- // FIFO is full
- continue;
- for (j = 0; j < nFIFO && nTotalWords > 0; j++,nTotalWords--)
- writew(*w16++, info->reg.bitblt_data);
- }
- e1356_engine_wait_complete(bltreg);
- }
- static void
- doBlt_SolidFill(const struct e1356fb_par* par,
- struct fb_info_e1356* info,
- blt_info_t* blt)
- {
- reg_bitblt_t* bltreg = info->reg.bitblt;
- u32 width = blt->dst_width, height = blt->dst_height;
- u32 stride = par->width_virt * par->Bpp;
- u32 dest_addr = (blt->dst_y * stride) + (blt->dst_x * par->Bpp);
- if (width == 0 || height == 0)
- return;
- // program dest address
- writeb(dest_addr & 0x00ff, &bltreg->dest_start_addr0);
- writeb((dest_addr>>8) & 0x00ff, &bltreg->dest_start_addr1);
- writeb((dest_addr>>16) & 0x00ff, &bltreg->dest_start_addr2);
- // program width and height of solid-fill blit
- writew(width-1, &bltreg->width0);
- writew(height-1, &bltreg->height0);
- // program color of fill
- writew(blt->fg_color, &bltreg->fg_color0);
- // select solid-fill BLIT
- writeb(BLT_SOLID_FILL, &bltreg->operation);
- // program color format operation
- writeb(par->bpp == 8 ? 0x00 : 0x01, &bltreg->ctrl1);
- // program BLIT memory offset
- writew(stride/2, &bltreg->mem_addr_offset0);
- // start it up (self completes)
- writeb(0x80, &bltreg->ctrl0);
- e1356_engine_wait_complete(bltreg);
- }
- static void
- doBlt_Move(const struct e1356fb_par* par,
- struct fb_info_e1356* info,
- blt_info_t* blt)
- {
- reg_bitblt_t* bltreg = info->reg.bitblt;
- int neg_dir=0;
- u32 dest_addr, src_addr;
- u32 bpp = par->bpp;
- u32 stride = par->width_virt * par->Bpp; // virt line length in bytes
- u32 srcx = blt->src_x, srcy = blt->src_y;
- u32 dstx = blt->dst_x, dsty = blt->dst_y;
- u32 width = blt->dst_width, height = blt->dst_height;
-
- if (width == 0 || height == 0)
- return;
-
- src_addr = srcx*par->Bpp + srcy*stride;
- dest_addr = dstx*par->Bpp + dsty*stride;
- /*
- * See if regions overlap and dest region is beyond source region.
- * If so, we need to do a move BLT in negative direction. Only applies
- * if the BLT is not transparent.
- */
- if (!(blt->attribute & BLT_ATTR_TRANSPARENT)) {
- if ((srcx + width > dstx) && (srcx < dstx + width) &&
- (srcy + height > dsty) && (srcy < dsty + height) &&
- (dest_addr > src_addr)) {
- neg_dir = 1;
- // negative direction : get the coords of lower right corner
- src_addr += stride * (height-1) + par->Bpp * (width-1);
- dest_addr += stride * (height-1) + par->Bpp * (width-1);
- }
- }
-
- // program BLIT memory offset
- writew(stride/2, &bltreg->mem_addr_offset0);
- // program src and dest addresses
- writeb(src_addr & 0x00ff, &bltreg->src_start_addr0);
- writeb((src_addr>>8) & 0x00ff, &bltreg->src_start_addr1);
- writeb((src_addr>>16) & 0x00ff, &bltreg->src_start_addr2);
- writeb(dest_addr & 0x00ff, &bltreg->dest_start_addr0);
- writeb((dest_addr>>8) & 0x00ff, &bltreg->dest_start_addr1);
- writeb((dest_addr>>16) & 0x00ff, &bltreg->dest_start_addr2);
- // program width and height of blit
- writew(width-1, &bltreg->width0);
- writew(height-1, &bltreg->height0);
- // program color format operation
- writeb(bpp == 8 ? 0x00 : 0x01, &bltreg->ctrl1);
- // set the blt type
- if (blt->attribute & BLT_ATTR_TRANSPARENT) {
- writew(blt->bg_color, &bltreg->bg_color0);
- writeb(BLT_MOVE_POS_TRANSP, &bltreg->operation);
- } else {
- writeb(blt->rop, &bltreg->rop_code);
- // select pos/neg move BLIT
- writeb(neg_dir ? BLT_MOVE_NEG_ROP : BLT_MOVE_POS_ROP,
- &bltreg->operation);
- }
- // start it up (self completes)
- writeb(0x80, &bltreg->ctrl0);
- e1356_engine_wait_complete(bltreg);
- }
- static void doBlt_ColorExpand(const struct e1356fb_par* par,
- struct fb_info_e1356* info,
- blt_info_t* blt)
- {
- reg_bitblt_t* bltreg = info->reg.bitblt;
- int i, j, nWords, Sx, Sy;
- u32 dstAddr;
- u16* wpt, *wpt1;
- u32 stride = par->width_virt * par->Bpp;
- if (blt->dst_width == 0 || blt->dst_height == 0)
- return;
- Sx = blt->src_x;
- Sy = blt->src_y;
- writeb((7 - Sx%8), &bltreg->rop_code);
- writeb(blt->operation, &bltreg->operation);
- writeb((u8)(Sx & 1), &bltreg->src_start_addr0);
- dstAddr = blt->dst_x*par->Bpp + blt->dst_y * stride;
- writeb(dstAddr, &bltreg->dest_start_addr0);
- writeb(dstAddr>>8, &bltreg->dest_start_addr1);
- writeb(dstAddr>>16, &bltreg->dest_start_addr2);
- // program color format operation
- writeb(par->bpp == 8 ? 0x00 : 0x01, &bltreg->ctrl1);
- writew(stride/2, &bltreg->mem_addr_offset0);
- writew(blt->dst_width-1, &bltreg->width0);
- writew(blt->dst_height-1, &bltreg->height0);
- writew(blt->bg_color, &bltreg->bg_color0);
- writew(blt->fg_color, &bltreg->fg_color0);
- // start it up
- writeb(0x80, &bltreg->ctrl0);
- // wait for it to actually start
- e1356_engine_wait_busy(bltreg);
- // calculate the number of 16 bit words per one blt line
- nWords = (Sx%16 + blt->dst_width + 15)/16;
- wpt = blt->src + (Sy*blt->srcstride + Sx/16)/2;
- for (i = 0; i < blt->dst_height; i++) {
- wpt1 = wpt;
- for (j = 0; j < nWords; j++) {
- // loop until FIFO becomes empty...
- e1356_wait_bitclr(&bltreg->ctrl0, 0x40, 10000);
- writew(*wpt1++, info->reg.bitblt_data);
- }
-
- wpt += blt->srcstride/2;
- }
- e1356_engine_wait_complete(bltreg);
- }
- /*
- * The BitBLT operation dispatcher
- */
- static int
- doBlt(const struct e1356fb_par* par,
- struct fb_info_e1356* info,
- blt_info_t* blt)
- {
- /*
- * Make sure we're not reentering in the middle of an
- * active BitBLT operation. ALWAYS call this dispatcher
- * and not one of the above BLT routines directly, or you
- * run the risk of overlapping BLT operations, which can
- * cause complete system hangs.
- */
- if (readb(&info->reg.bitblt->ctrl0) & 0x80)
- return -ENXIO;
-
- switch (blt->operation) {
- case BLT_MOVE_POS_ROP:
- case BLT_MOVE_NEG_ROP:
- case BLT_MOVE_POS_TRANSP:
- doBlt_Move(par, info, blt);
- break;
- case BLT_COLOR_EXP:
- case BLT_COLOR_EXP_TRANSP:
- doBlt_ColorExpand(par, info, blt);
- break;
- case BLT_SOLID_FILL:
- doBlt_SolidFill(par, info, blt);
- break;
- case BLT_WRITE_ROP:
- case BLT_WRITE_TRANSP:
- doBlt_Write(par, info, blt);
- break;
- case BLT_READ:
- case BLT_PAT_FILL_ROP:
- case BLT_PAT_FILL_TRANSP:
- case BLT_MOVE_COLOR_EXP:
- case BLT_MOVE_COLOR_EXP_TRANSP:
- DPRINTK("BitBLT operation 0x%02x not implemented yetn",
- blt->operation);
- return -ENXIO;
- default:
- DPRINTK("Unknown BitBLT operation 0x%02xn", blt->operation);
- return -ENXIO;
- }
-
- return 0;
- }
- // Initializes blt->src and blt->srcstride
- static void fill_putcs_buffer(struct display *p,
- blt_info_t* blt,
- const unsigned short* str,
- int count)
- {
- int row, i, j;
- u8* b1, *b2;
- u32 fw = fontwidth(p);
- u32 fwb = (fw + 7) >> 3;
- u32 fh = fontheight(p);
- int bytesPerChar = fwb * fh;
- if (count*bytesPerChar > PAGE_SIZE) {
- // Truncate the string if it overflows putcs_buffer, which is
- // one page in size.
- count = PAGE_SIZE/bytesPerChar - 1;
- }
- blt->srcstride = (fwb*count + 1) & ~1; //round up to be even
-
- b1 = (u8*)blt->src;
- for (row = 0; row < fh; row++) {
- b2 = b1;
- for (i = 0; i < count; i++) {
- for (j=0; j<fwb; j++)
- *b2++ = p->fontdata[(str[i] & p->charmask) *
- bytesPerChar +
- row*fwb + j];
- }
- b1 += blt->srcstride;
- }
- }
- /*
- * Set the color of a palette entry in 8bpp mode
- */
- static inline void
- do_setpalentry(reg_lut_t* lut, unsigned regno,
- u8 r, u8 g, u8 b)
- {
- writeb(0x00, &lut->mode);
- writeb((u8)regno, &lut->addr);
- writeb(r&0xf0, &lut->data);
- writeb(g&0xf0, &lut->data);
- writeb(b&0xf0, &lut->data);
- }
-
- static void
- do_pan_var(struct fb_var_screeninfo* var, struct fb_info_e1356* info)
- {
- u32 pixel_start, start_addr;
- u8 pixel_pan;
- struct e1356fb_par* par = &info->current_par;
- reg_misc_t* misc = info->reg.misc;
- reg_dispmode_t* dispmode = (IS_PANEL(info->fix.disp_type)) ?
- info->reg.lcd_mode : info->reg.crttv_mode;
-
- pixel_start = var->yoffset * par->width_virt + var->xoffset;
- start_addr = (pixel_start * par->Bpp) / 2;
- pixel_pan = (par->bpp == 8) ? (u8)(pixel_start & 1) : 0;
-
- if (readb(&misc->disp_mode) != 0) {
- reg_dispcfg_t* dispcfg = (IS_PANEL(info->fix.disp_type)) ?
- info->reg.lcd_cfg : info->reg.crttv_cfg;
- // wait for the end of the current VNDP
- e1356_wait_bitclr(&dispcfg->vndp, 0x80, 5000);
- // now wait for the start of a new VNDP
- e1356_wait_bitset(&dispcfg->vndp, 0x80, 5000);
- }
-
- writeb((u8)(start_addr & 0xff), &dispmode->start_addr0);
- writeb((u8)((start_addr>>8) & 0xff), &dispmode->start_addr1);
- writeb((u8)((start_addr>>16) & 0xff), &dispmode->start_addr2);
- writeb(pixel_pan, &dispmode->pixel_panning);
- }
- /*
- * Invert the hardware cursor image (timerfunc)
- */
- static void
- do_flashcursor(unsigned long ptr)
- {
- u8 curs_ctrl;
- struct fb_info_e1356* info = (struct fb_info_e1356 *)ptr;
- reg_inkcurs_t* inkcurs = (IS_PANEL(info->fix.disp_type)) ?
- info->reg.lcd_inkcurs : info->reg.crttv_inkcurs;
- spin_lock(&info->cursor.lock);
- // toggle cursor enable bit
- curs_ctrl = readb(&inkcurs->ctrl);
- writeb((curs_ctrl ^ 0x01) & 0x01, &inkcurs->ctrl);
- info->cursor.timer.expires = jiffies+HZ/2;
- add_timer(&info->cursor.timer);
- spin_unlock(&info->cursor.lock);
- }
- #ifdef SHADOW_FRAME_BUFFER
- /*
- * Write BLT the shadow frame buffer to the real fb (timerfunc)
- */
- static void
- do_write_shadow_fb(unsigned long ptr)
- {
- blt_info_t blt;
- struct fb_info_e1356 *info = (struct fb_info_e1356*)ptr;
- struct fb_info* fb = &info->fb_info;
- struct e1356fb_par* par = &info->current_par;
- u32 stride = par->width_virt * par->Bpp;
- unsigned long j_start = jiffies;
-
- blt.src_x = blt.src_y = 0;
- blt.attribute = 0;
- blt.dst_width = par->width;
- blt.dst_height = par->height;
- blt.dst_y = fb->var.yoffset;
- blt.dst_x = fb->var.xoffset;
- blt.operation = BLT_WRITE_ROP;
- blt.rop = 0x0c; // ROP: destination = source
- blt.src = (u16*)(info->shadow.fb + blt.dst_x * par->Bpp +
- blt.dst_y * stride);
- doBlt(par, info, &blt);
-
- info->shadow.timer.expires = jiffies+HZ/2;
- add_timer(&info->shadow.timer);
- //DPRINTK("delta jiffies = %ldn", jiffies - j_start);
- }
- #endif
- /* -------------------------------------------------------------------------
- * Hardware independent part, interface to the world
- * ------------------------------------------------------------------------- */
- static void
- e1356_cfbX_clear_margins(struct vc_data* conp, struct display* p,
- int bottom_only)
- {
- blt_info_t blt;
- unsigned int cw=fontwidth(p);
- unsigned int ch=fontheight(p);
- unsigned int rw=p->var.xres % cw;
- unsigned int bh=p->var.yres % ch;
- unsigned int rs=p->var.xres - rw;
- unsigned int bs=p->var.yres - bh;
- //DPRINTK("n");
- if (!bottom_only && rw) {
- blt.dst_x = p->var.xoffset+rs;
- blt.dst_y = p->var.yoffset;
- blt.dst_height = p->var.yres;
- blt.dst_width = rw;
- blt.attribute = 0;
- blt.fg_color = 0;
- blt.operation = BLT_SOLID_FILL;
- doBlt (&fb_info.current_par, &fb_info, &blt);
- }
-
- if (bh) {
- blt.dst_x = p->var.xoffset;
- blt.dst_y = p->var.yoffset+bs;
- blt.dst_height = bh;
- blt.dst_width = rs;
- blt.attribute = 0;
- blt.fg_color = 0;
- blt.operation = BLT_SOLID_FILL;
- doBlt (&fb_info.current_par, &fb_info, &blt);
- }
- }
- static void
- e1356_cfbX_bmove(struct display* p,
- int sy,
- int sx,
- int dy,
- int dx,
- int height,
- int width)
- {
- blt_info_t blt;
-
- //DPRINTK("(%d,%d) to (%d,%d) size (%d,%d)n", sx,sy,dx,dy,width,height);
- blt.src_x = fontwidth_x8(p)*sx;
- blt.src_y = fontheight(p)*sy;
- blt.dst_x = fontwidth_x8(p)*dx;
- blt.dst_y = fontheight(p)*dy;
- blt.src_height = blt.dst_height = fontheight(p)*height;
- blt.src_width = blt.dst_width = fontwidth_x8(p)*width;
- blt.attribute = 0;
- blt.rop = 0x0c;
- /*
- * The move BLT routine will actually decide between a pos/neg
- * move BLT. This is just so that the BLT dispatcher knows to
- * call the move BLT routine.
- */
- blt.operation = BLT_MOVE_POS_ROP;
- doBlt (&fb_info.current_par, &fb_info, &blt);
- }
- static void
- e1356_cfb8_putc(struct vc_data* conp,
- struct display* p,
- int c, int yy,int xx)
- {
- blt_info_t blt;
- u32 fgx,bgx;
- u32 fw = fontwidth_x8(p);
- u32 fh = fontheight(p);
- u16 cs = (u16)c;
- fgx = attr_fgcol(p, c);
- bgx = attr_bgcol(p, c);
- blt.src_x = blt.src_y = 0;
- blt.attribute = 0;
- blt.dst_width = fw;
- blt.dst_height = fh;
- blt.dst_y = yy * fh;
- blt.dst_x = xx * fw;
- blt.bg_color = bgx;
- blt.fg_color = fgx;
- blt.operation = BLT_COLOR_EXP;
- blt.src = fb_info.putcs_buffer;
- fill_putcs_buffer(p, &blt, &cs, 1);
- doBlt(&fb_info.current_par, &fb_info, &blt);
- }
- static void
- e1356_cfb16_putc(struct vc_data* conp,
- struct display* p,
- int c, int yy,int xx)
- {
- blt_info_t blt;
- u32 fgx,bgx;
- u32 fw = fontwidth_x8(p);
- u32 fh = fontheight(p);
- u16 cs = (u16)c;
-
- fgx = ((u16*)p->dispsw_data)[attr_fgcol(p,c)];
- bgx = ((u16*)p->dispsw_data)[attr_bgcol(p,c)];
- blt.src_x = blt.src_y = 0;
- blt.attribute = 0;
- blt.dst_width = fw;
- blt.dst_height = fh;
- blt.dst_y = yy * fh;
- blt.dst_x = xx * fw;
- blt.bg_color = bgx;
- blt.fg_color = fgx;
- blt.operation = BLT_COLOR_EXP;
- blt.src = fb_info.putcs_buffer;
- fill_putcs_buffer(p, &blt, &cs, 1);
- doBlt(&fb_info.current_par, &fb_info, &blt);
- }
- static void
- e1356_cfb8_putcs(struct vc_data* conp,
- struct display* p,
- const unsigned short *s,int count,int yy,int xx)
- {
- blt_info_t blt;
- u32 fgx,bgx;
- u32 fw = fontwidth_x8(p);
- u32 fh = fontheight(p);
- //DPRINTK("n");
- fgx=attr_fgcol(p, *s);
- bgx=attr_bgcol(p, *s);
- blt.src_x = blt.src_y = 0;
- blt.attribute = 0;
- blt.dst_width = count * fw;
- blt.dst_height = fh;
- blt.dst_y = yy * fh;
- blt.dst_x = xx * fw;
- blt.bg_color = bgx;
- blt.fg_color = fgx;
- blt.operation = BLT_COLOR_EXP;
- blt.src = fb_info.putcs_buffer;
- fill_putcs_buffer(p, &blt, s, count);
- doBlt(&fb_info.current_par, &fb_info, &blt);
- }
- static void
- e1356_cfb16_putcs(struct vc_data* conp,
- struct display* p,
- const unsigned short *s,int count,int yy,int xx)
- {
- blt_info_t blt;
- u32 fgx,bgx;
- u32 fw = fontwidth_x8(p);
- u32 fh = fontheight(p);
- //DPRINTK("n");
- fgx=((u16*)p->dispsw_data)[attr_fgcol(p,*s)];
- bgx=((u16*)p->dispsw_data)[attr_bgcol(p,*s)];
- blt.src_x = blt.src_y = 0;
- blt.attribute = 0;
- blt.dst_width = count * fw;
- blt.dst_height = fh;
- blt.dst_y = yy * fh;
- blt.dst_x = xx * fw;
- blt.bg_color = bgx;
- blt.fg_color = fgx;
- blt.operation = BLT_COLOR_EXP;
- blt.src = fb_info.putcs_buffer;
- fill_putcs_buffer(p, &blt, s, count);
- doBlt(&fb_info.current_par, &fb_info, &blt);
- }
- static void
- e1356_cfb8_clear(struct vc_data* conp,
- struct display* p,
- int sy,
- int sx,
- int height,
- int width)
- {
- blt_info_t blt;
- u32 bg = attr_bgcol_ec(p,conp);
- //DPRINTK("(%d,%d) size (%d,%d)n", sx,sy,width,height);
- blt.dst_x = fontwidth_x8(p)*sx;
- blt.dst_y = fontheight(p)*sy;
- blt.dst_height = fontheight(p)*height;
- blt.dst_width = fontwidth_x8(p)*width;
- blt.attribute = 0;
- blt.fg_color = bg;
- blt.operation = BLT_SOLID_FILL;
- doBlt (&fb_info.current_par, &fb_info, &blt);
- }
- static void
- e1356_cfb16_clear(struct vc_data* conp,
- struct display* p,
- int sy,
- int sx,
- int height,
- int width)
- {
- blt_info_t blt;
- u32 bg = ((u16*)p->dispsw_data)[attr_bgcol_ec(p,conp)];
- //DPRINTK("(%d,%d) size (%d,%d)n", sx,sy,width,height);
- blt.dst_x = fontwidth_x8(p)*sx;
- blt.dst_y = fontheight(p)*sy;
- blt.dst_height = fontheight(p)*height;
- blt.dst_width = fontwidth_x8(p)*width;
- blt.attribute = 0;
- blt.fg_color = bg;
- blt.operation = BLT_SOLID_FILL;
- doBlt (&fb_info.current_par, &fb_info, &blt);
- }
- static void
- e1356_cfbX_revc(struct display *p, int xx, int yy)
- {
- // not used if h/w cursor
- //DPRINTK("n");
- }
- static void
- e1356_cfbX_cursor(struct display *p, int mode, int x, int y)
- {
- unsigned long flags;
- struct fb_info_e1356 *info=(struct fb_info_e1356 *)p->fb_info;
- reg_inkcurs_t* inkcurs = (IS_PANEL(info->fix.disp_type)) ?
- info->reg.lcd_inkcurs : info->reg.crttv_inkcurs;
-
- //DPRINTK("n");
- if (mode == CM_ERASE) {
- if (info->cursor.state != CM_ERASE) {
- spin_lock_irqsave(&info->cursor.lock,flags);
- info->cursor.state = CM_ERASE;
- del_timer(&(info->cursor.timer));
- writeb(0x00, &inkcurs->ctrl);
- spin_unlock_irqrestore(&info->cursor.lock,flags);
- }
- return;
- }
-
- if ((p->conp->vc_cursor_type & CUR_HWMASK) != info->cursor.type)
- e1356fb_createcursor(p);
-
- x *= fontwidth_x8(p);
- y *= fontheight(p);
- x -= p->var.xoffset;
- y -= p->var.yoffset;
-
- spin_lock_irqsave(&info->cursor.lock,flags);
- if ((x != info->cursor.x) || (y != info->cursor.y) ||
- (info->cursor.redraw)) {
- info->cursor.x = x;
- info->cursor.y = y;
- info->cursor.redraw = 0;
- writeb(0x01, &inkcurs->ctrl);
- writew(x, &inkcurs->x_pos0);
- writew(y, &inkcurs->y_pos0);
- /* fix cursor color - XFree86 forgets to restore it properly */
- writeb(0x00, &inkcurs->blue0);
- writeb(0x00, &inkcurs->green0);
- writeb(0x00, &inkcurs->red0);
- writeb(0x1f, &inkcurs->blue1);
- writeb(0x3f, &inkcurs->green1);
- writeb(0x1f, &inkcurs->red1);
- }
- info->cursor.state = CM_DRAW;
- mod_timer(&info->cursor.timer, jiffies+HZ/2);
- spin_unlock_irqrestore(&info->cursor.lock,flags);
- }
- #ifdef FBCON_HAS_CFB8
- static struct display_switch fbcon_e1356_8 = {
- setup: fbcon_cfb8_setup,
- bmove: e1356_cfbX_bmove,
- clear: e1356_cfb8_clear,
- putc: e1356_cfb8_putc,
- putcs: e1356_cfb8_putcs,
- revc: e1356_cfbX_revc,
- cursor: e1356_cfbX_cursor,
- clear_margins: e1356_cfbX_clear_margins,
- fontwidthmask: FONTWIDTHRANGE(6,16)
- };
- #endif
- #ifdef FBCON_HAS_CFB16
- static struct display_switch fbcon_e1356_16 = {
- setup: fbcon_cfb16_setup,
- bmove: e1356_cfbX_bmove,
- clear: e1356_cfb16_clear,
- putc: e1356_cfb16_putc,
- putcs: e1356_cfb16_putcs,
- revc: e1356_cfbX_revc,
- cursor: e1356_cfbX_cursor,
- clear_margins: e1356_cfbX_clear_margins,
- fontwidthmask: FONTWIDTHRANGE(6,16)
- };
- #endif
- /* ------------------------------------------------------------------------- */
- static void
- e1356fb_set_par(const struct e1356fb_par* par,
- struct fb_info_e1356* info)
- {
- reg_dispcfg_t* dispcfg=NULL;
- reg_dispmode_t* dispmode=NULL;
- u8* pclk_cfg=NULL;
- u8 width, hndp=0, hsync_start=0, hsync_width=0;
- u8 vndp, vsync_start, vsync_width=0, display_mode;
- u8 main_display_mode=0;
- u16 height, addr_offset;
- int disp_type = info->fix.disp_type;
- DPRINTK("%dx%d-%dbpp @ %d Hz, %d kHz hsyncn",
- par->width, par->height, par->bpp,
- par->vsync_freq, (((2*par->hsync_freq)/1000)+1)/2);
- #ifdef E1356FB_VERBOSE_DEBUG
- dump_par(par);
- #endif
-
- info->current_par = *par;
- width = (par->width >> 3) - 1;
- display_mode = (par->bpp == 8) ? 0x03 : 0x05;
- addr_offset = (par->width_virt * par->Bpp) / 2;
- vsync_start = (disp_type == DISP_TYPE_LCD) ? 0 : par->vsync_start - 1;
- height = par->height - 1;
- vndp = par->vert_ndp - 1;
- switch (disp_type) {
- case DISP_TYPE_LCD:
- dispcfg = info->reg.lcd_cfg;
- dispmode = info->reg.lcd_mode;
- pclk_cfg = &info->reg.clk_cfg->lcd_pclk_cfg;
- hndp = (par->horiz_ndp >> 3) - 1;
- hsync_start = 0;
- hsync_width = par->hsync_pol ? 0x00 : 0x80;
- vsync_width = par->vsync_pol ? 0x00 : 0x80;
- main_display_mode = 0x01;
- break;
- case DISP_TYPE_TFT:
- dispcfg = info->reg.lcd_cfg;
- dispmode = info->reg.lcd_mode;
- pclk_cfg = &info->reg.clk_cfg->lcd_pclk_cfg;
- hndp = (par->horiz_ndp >> 3) - 1;
- hsync_start = (par->bpp == 8) ?
- (par->hsync_start - 4) >> 3 :
- (par->hsync_start - 6) >> 3;
- hsync_width =
- (par->hsync_pol ? 0x80 : 0x00) |
- ((par->hsync_width >> 3) - 1);
- vsync_width =
- (par->vsync_pol ? 0x80 : 0x00) |
- (par->vsync_width - 1);
- main_display_mode = 0x01;
- break;
- case DISP_TYPE_CRT:
- dispcfg = info->reg.crttv_cfg;
- dispmode = info->reg.crttv_mode;
- pclk_cfg = &info->reg.clk_cfg->crttv_pclk_cfg;
- hndp = (par->horiz_ndp >> 3) - 1;
- hsync_start = (par->bpp == 8) ?
- (par->hsync_start - 3) >> 3 :
- (par->hsync_start - 5) >> 3;
- hsync_width =
- (par->hsync_pol ? 0x80 : 0x00) |
- ((par->hsync_width >> 3) - 1);
- vsync_width =
- (par->vsync_pol ? 0x80 : 0x00) |
- (par->vsync_width - 1);
- main_display_mode = 0x02;
- break;
- case DISP_TYPE_NTSC:
- case DISP_TYPE_PAL:
- dispcfg = info->reg.crttv_cfg;
- dispmode = info->reg.crttv_mode;
- pclk_cfg = &info->reg.clk_cfg->crttv_pclk_cfg;
- hndp = (disp_type == DISP_TYPE_PAL) ?
- (par->horiz_ndp - 7) >> 3 :
- (par->horiz_ndp - 6) >> 3;
- hsync_start = (par->bpp == 8) ?
- (par->hsync_start + 7) >> 3 :
- (par->hsync_start + 5) >> 3;
- hsync_width = 0;
- vsync_width = 0;
- main_display_mode = (info->fix.tv_filt & TV_FILT_FLICKER) ?
- 0x06 : 0x04;
- break;
- }
- // Blast the regs!
- // note: reset panning/scrolling (set start-addr and
- // pixel pan regs to 0). Panning is handled by pan_display.
- e1356_engine_wait_complete(info->reg.bitblt);
- // disable display while initializing
- writeb(0, &info->reg.misc->disp_mode);
- writeb(par->ipclk.pixclk_bits, pclk_cfg);
- writeb(width, &dispcfg->hdw);
- writeb(hndp, &dispcfg->hndp);
- writeb(hsync_start, &dispcfg->hsync_start);
- writeb(hsync_width, &dispcfg->hsync_pulse);
- writew(height, &dispcfg->vdh0);
- writeb(vndp, &dispcfg->vndp);
- writeb(vsync_start, &dispcfg->vsync_start);
- writeb(vsync_width, &dispcfg->vsync_pulse);
- writeb(display_mode, &dispmode->disp_mode);
- if (info->fix.mmunalign && info->mmaped)
- writeb(1, &dispmode->start_addr0);
- else
- writeb(0, &dispmode->start_addr0);
- writeb(0, &dispmode->start_addr1);
- writeb(0, &dispmode->start_addr2);
- writew(addr_offset, &dispmode->mem_addr_offset0);
- writeb(0, &dispmode->pixel_panning);
- // reset BitBlt engine
- e1356fb_engine_init(par, info);
- #ifdef E1356FB_VERBOSE_DEBUG
- dump_display_regs(dispcfg, dispmode);
- #endif
- /* clear out framebuffer memory */
- fbfill(fb_info.membase_virt, 0, fb_info.fb_size);
- // finally, enable display!
- writeb(main_display_mode, &info->reg.misc->disp_mode);
- }
- static int
- e1356fb_verify_timing(struct e1356fb_par* par,
- const struct fb_info_e1356* info)
- {
- int disp_type = info->fix.disp_type;
- // timing boundary checks
- if (par->horiz_ndp > max_hndp[disp_type]) {
- DPRINTK("horiz_ndp too big: %dn", par->horiz_ndp);
- return -EINVAL;
- }
- if (par->vert_ndp > max_vndp[disp_type]) {
- DPRINTK("vert_ndp too big: %dn", par->vert_ndp);
- return -EINVAL;
- }
- if (disp_type != DISP_TYPE_LCD) {
- if (par->hsync_start >
- max_hsync_start[(par->bpp==16)][disp_type]) {
- DPRINTK("hsync_start too big: %dn",
- par->hsync_start);
- return -EINVAL;
- }
- if (par->vsync_start > max_vsync_start[disp_type]) {
- DPRINTK("vsync_start too big: %dn",
- par->vsync_start);
- return -EINVAL;
- }
- if (!IS_TV(disp_type)) {
- if (par->hsync_width > max_hsync_width[disp_type]) {
- DPRINTK("hsync_width too big: %dn",
- par->hsync_width);
- return -EINVAL;
- }
- if (par->vsync_width > max_vsync_width[disp_type]) {
- DPRINTK("vsync_width too big: %dn",
- par->vsync_width);
- return -EINVAL;
- }
- }
- }
- if (IS_TV(disp_type)) {
- int tv_pixclk = (disp_type == DISP_TYPE_NTSC) ?
- NTSC_PIXCLOCK : PAL_PIXCLOCK;
- if (info->fix.tv_filt & TV_FILT_FLICKER)
- tv_pixclk *= 2;
-
- if (par->ipclk.pixclk_d != tv_pixclk) {
- DPRINTK("invalid TV pixel clock %u kHzn",
- par->ipclk.pixclk_d);
- return -EINVAL;
- }
- }
-
- if (e1356_calc_pixclock(info, &par->ipclk) < 0) {
- DPRINTK("can't set pixel clock %u kHzn",
- par->ipclk.pixclk_d);
- return -EINVAL;
- }
-
- #ifdef E1356FB_VERBOSE_DEBUG
- DPRINTK("desired pixclock = %d kHz, actual = %d kHz, error = %d%%n",
- par->ipclk.pixclk_d, par->ipclk.pixclk, par->ipclk.error);
- #endif
-
- if (disp_type != DISP_TYPE_LCD) {
- if (par->horiz_ndp < par->hsync_start + par->hsync_width) {
- DPRINTK("invalid horiz. timingn");
- return -EINVAL;
- }
- if (par->vert_ndp < par->vsync_start + par->vsync_width) {
- DPRINTK("invalid vert. timingn");
- return -EINVAL;
- }
- // SED1356 Hardware Functional Spec, section 13.5
- if (disp_type == DISP_TYPE_NTSC &&
- ((par->width + par->horiz_ndp != 910) ||
- (par->height + 2*par->vert_ndp+1 != 525))) {
- DPRINTK("invalid NTSC timingn");
- return -EINVAL;
- } else if (disp_type == DISP_TYPE_PAL &&
- ((par->width + par->horiz_ndp != 1135) ||
- (par->height + 2*par->vert_ndp+1 != 625))) {
- DPRINTK("invalid PAL timingn");
- return -EINVAL;
- }
- }
-
- par->hsync_freq = (1000 * par->ipclk.pixclk) /
- (par->width + par->horiz_ndp);
- par->vsync_freq = par->hsync_freq / (par->height + par->vert_ndp);
-
- if (par->hsync_freq < 30000 || par->hsync_freq > 90000) {
- DPRINTK("hsync freq too %s: %u Hzn",
- par->hsync_freq < 30000 ? "low" : "high",
- par->hsync_freq);
- return -EINVAL;
- }
- if (par->vsync_freq < 50 || par->vsync_freq > 110) {
- DPRINTK("vsync freq too %s: %u Hzn",
- par->vsync_freq < 50 ? "low" : "high",
- par->vsync_freq);
- return -EINVAL;
- }
- return 0;
- }
- static int
- e1356fb_verify_par(struct e1356fb_par* par,
- const struct fb_info_e1356* info)
- {
- int disp_type = info->fix.disp_type;
-
- if (par->bpp != 8 && par->bpp != 16) {
- DPRINTK("depth not supported: %u bppn", par->bpp);
- return -EINVAL;
- }
- if (par->width > par->width_virt) {
- DPRINTK("virtual x resolution < physical x resolution not possiblen");
- return -EINVAL;
- }
- if (par->height > par->height_virt) {
- DPRINTK("virtual y resolution < physical y resolution not possiblen");
- return -EINVAL;
- }
- if (par->width < 320 || par->width > 1024) {
- DPRINTK("width not supported: %un", par->width);
- return -EINVAL;
- }
- if ((disp_type == DISP_TYPE_LCD && (par->width % 16)) ||
- (disp_type == DISP_TYPE_TFT && (par->width % 8))) {
- DPRINTK("invalid width for panel type: %un", par->width);
- return -EINVAL;
- }
- if (par->height < 200 || par->height > 1024) {
- DPRINTK("height not supported: %un", par->height);
- return -EINVAL;
- }
- if (par->width_virt * par->height_virt * par->Bpp >
- info->fb_size) {
- DPRINTK("not enough memory for virtual screen (%ux%ux%u)n",
- par->width_virt, par->height_virt, par->bpp);
- return -EINVAL;
- }
- return e1356fb_verify_timing(par, info);
- }
- static int
- e1356fb_var_to_par(const struct fb_var_screeninfo* var,
- struct e1356fb_par* par,
- const struct fb_info_e1356* info)
- {
- if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
- DPRINTK("interlace not supportedn");
- return -EINVAL;
- }
- memset(par, 0, sizeof(struct e1356fb_par));
- par->width = (var->xres + 15) & ~15; /* could sometimes be 8 */
- par->width_virt = var->xres_virtual;
- par->height = var->yres;
- par->height_virt = var->yres_virtual;
- par->bpp = var->bits_per_pixel;
- par->Bpp = (par->bpp + 7) >> 3;
- par->ipclk.pixclk_d = PICOS2KHZ(var->pixclock);
- par->hsync_start = var->right_margin;
- par->hsync_width = var->hsync_len;
- par->vsync_start = var->lower_margin;
- par->vsync_width = var->vsync_len;
- par->horiz_ndp = var->left_margin + var->right_margin + var->hsync_len;
- par->vert_ndp = var->upper_margin + var->lower_margin + var->vsync_len;
- par->hsync_pol = (var->sync & FB_SYNC_HOR_HIGH_ACT) ? 1 : 0;
- par->vsync_pol = (var->sync & FB_SYNC_VERT_HIGH_ACT) ? 1 : 0;
- par->cmap_len = (par->bpp == 8) ? 256 : 16;
- return e1356fb_verify_par(par, info);
- }
- static int
- e1356fb_par_to_var(struct fb_var_screeninfo* var,
- struct e1356fb_par* par,
- const struct fb_info_e1356* info)
- {
- struct fb_var_screeninfo v;
- int ret;
-
- // First, make sure par is valid.
- if ((ret = e1356fb_verify_par(par, info)))
- return ret;
- memset(&v, 0, sizeof(struct fb_var_screeninfo));
- v.xres_virtual = par->width_virt;
- v.yres_virtual = par->height_virt;
- v.xres = par->width;
- v.yres = par->height;
- v.right_margin = par->hsync_start;
- v.hsync_len = par->hsync_width;
- v.left_margin = par->horiz_ndp - par->hsync_start - par->hsync_width;
- v.lower_margin = par->vsync_start;
- v.vsync_len = par->vsync_width;
- v.upper_margin = par->vert_ndp - par->vsync_start - par->vsync_width;
- v.bits_per_pixel = par->bpp;
- switch(par->bpp) {
- case 8:
- v.red.offset = v.green.offset = v.blue.offset = 0;
- v.red.length = v.green.length = v.blue.length = 4;
- break;
- case 16:
- v.red.offset = 11;
- v.red.length = 5;
- v.green.offset = 5;
- v.green.length = 6;
- v.blue.offset = 0;
- v.blue.length = 5;
- break;
- }
- v.height = v.width = -1;
- v.pixclock = KHZ2PICOS(par->ipclk.pixclk);
- if (par->hsync_pol)
- v.sync |= FB_SYNC_HOR_HIGH_ACT;
- if (par->vsync_pol)
- v.sync |= FB_SYNC_VERT_HIGH_ACT;
- *var = v;
- return 0;
- }
- static int
- e1356fb_encode_fix(struct fb_fix_screeninfo* fix,
- const struct e1356fb_par* par,
- const struct fb_info_e1356* info)
- {
- memset(fix, 0, sizeof(struct fb_fix_screeninfo));
-
- strcpy(fix->id, "Epson SED1356");
- fix->smem_start = info->fix.membase_phys;
- fix->smem_len = info->fb_size;
- fix->mmio_start = info->fix.regbase_phys;
- fix->mmio_len = info->regbase_size;
- fix->accel = FB_ACCEL_EPSON_SED1356;
- fix->type = FB_TYPE_PACKED_PIXELS;
- fix->type_aux = 0;
- fix->line_length = par->width_virt * par->Bpp;
- fix->visual =
- (par->bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
-
- fix->xpanstep = info->fix.nopan ? 0 : 1;
- fix->ypanstep = info->fix.nopan ? 0 : 1;
- fix->ywrapstep = 0;
-
- return 0;
- }
- static int e1356fb_open(struct fb_info *fb, int user)
- {
- struct fb_info_e1356 *info = (struct fb_info_e1356*)fb;
- if (user) {
- info->open++;
- }
- MOD_INC_USE_COUNT;
- return 0;
- }
- static int e1356fb_release(struct fb_info *fb, int user)
- {
- struct fb_info_e1356 *info = (struct fb_info_e1356*)fb;
- if (user && info->open) {
- info->open--;
- if (info->open == 0)
- info->mmaped = 0;
- }
- MOD_DEC_USE_COUNT;
- return 0;
- }
- static int
- e1356fb_get_fix(struct fb_fix_screeninfo *fix,
- int con,
- struct fb_info *fb)
- {
- const struct fb_info_e1356 *info = (struct fb_info_e1356*)fb;
- struct e1356fb_par par;
- //DPRINTK("n");
- if (con == -1)
- par = info->current_par;
- else
- e1356fb_var_to_par(&fb_display[con].var, &par, info);
- e1356fb_encode_fix(fix, &par, info);
- return 0;
- }
- static int
- e1356fb_get_var(struct fb_var_screeninfo *var,
- int con,
- struct fb_info *fb)
- {
- struct fb_info_e1356 *info = (struct fb_info_e1356*)fb;
- //DPRINTK("n");
- if (con == -1)
- e1356fb_par_to_var(var, &info->current_par, info);
- else
- *var = fb_display[con].var;
- return 0;
- }
-
- static void
- e1356fb_set_dispsw(struct display *disp,
- struct fb_info_e1356 *info,
- int bpp,
- int accel)
- {
- struct e1356fb_fix* fix = &info->fix;
- //DPRINTK("n");
- if (disp->dispsw && disp->conp)
- fb_con.con_cursor(disp->conp, CM_ERASE);
- switch (bpp) {
- #ifdef FBCON_HAS_CFB8
- case 8:
- disp->dispsw = fix->noaccel ? &fbcon_cfb8 : &fbcon_e1356_8;
- if (fix->nohwcursor)
- fbcon_e1356_8.cursor = NULL;
- break;
- #endif
- #ifdef FBCON_HAS_CFB16
- case 16:
- disp->dispsw = fix->noaccel ? &fbcon_cfb16 : &fbcon_e1356_16;
- disp->dispsw_data = info->fbcon_cmap16;
- if (fix->nohwcursor)
- fbcon_e1356_16.cursor = NULL;
- break;
- #endif
- default:
- disp->dispsw = &fbcon_dummy;
- }
-
- }
- static int
- e1356fb_set_var(struct fb_var_screeninfo *var,
- int con,
- struct fb_info *fb)
- {
- struct fb_info_e1356 *info = (struct fb_info_e1356*)fb;
- struct e1356fb_par par;
- struct display *display;
- int oldxres, oldyres, oldvxres, oldvyres, oldbpp, oldaccel, accel, err;
- int activate = var->activate;
- int j,k;
-
- DPRINTK("n");
-
- if (con >= 0)
- display = &fb_display[con];
- else
- display = fb->disp; /* used during initialization */
-
- if ((err = e1356fb_var_to_par(var, &par, info))) {
- struct fb_videomode *dm;
- /*
- * this mode didn't pass the tests. Try the
- * corresponding mode from our own modedb.
- */
- DPRINTK("req mode failed, trying SED1356 %dx%d moden",
- var->xres, var->yres);
- if (e1356fb_get_mode(info, var->xres,
- var->yres, NULL, &dm) < 0) {
- DPRINTK("no SED1356 %dx%d mode found, failedn",
- var->xres, var->yres);
- return err;
- }
- fb_videomode_to_var(dm, var);
- if ((err = e1356fb_var_to_par(var, &par, info))) {
- DPRINTK("SED1356 %dx%d mode failedn",
- var->xres, var->yres);
- return err;
- }
- }
-
- if (info->fix.tv_filt & TV_FILT_FLICKER)
- printk("e1356fb: TV flicker filter enabledn");
-
- e1356fb_par_to_var(var, &par, info);
-
- if ((activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
- oldxres = display->var.xres;
- oldyres = display->var.yres;
- oldvxres = display->var.xres_virtual;
- oldvyres = display->var.yres_virtual;
- oldbpp = display->var.bits_per_pixel;
- oldaccel = display->var.accel_flags;
- display->var = *var;
- if (con < 0 ||
- oldxres != var->xres ||
- oldyres != var->yres ||
- oldvxres != var->xres_virtual ||
- oldvyres != var->yres_virtual ||
- oldbpp != var->bits_per_pixel ||
- oldaccel != var->accel_flags) {
- struct fb_fix_screeninfo fix;
-
- e1356fb_encode_fix(&fix, &par, info);
- display->screen_base = info->membase_virt;
- display->visual = fix.visual;
- display->type = fix.type;
- display->type_aux = fix.type_aux;
- display->ypanstep = fix.ypanstep;
- display->ywrapstep = fix.ywrapstep;
- display->line_length = fix.line_length;
- display->next_line = fix.line_length;
- display->can_soft_blank = 1;
- display->inverse = 0;
- accel = var->accel_flags & FB_ACCELF_TEXT;
- e1356fb_set_dispsw(display, info, par.bpp, accel);
-
- if (info->fix.nopan)
- display->scrollmode = SCROLL_YREDRAW;
-
- if (info->fb_info.changevar)
- (*info->fb_info.changevar)(con);
- }
- if (var->bits_per_pixel==8)
- for(j = 0; j < 16; j++) {
- k = color_table[j];
- fb_info.palette[j].red = default_red[k];
- fb_info.palette[j].green = default_grn[k];
- fb_info.palette[j].blue = default_blu[k];
- }
-
- del_timer(&(info->cursor.timer));
- fb_info.cursor.state=CM_ERASE;
-
- if (!info->fb_info.display_fg ||
- info->fb_info.display_fg->vc_num == con || con < 0)
- e1356fb_set_par(&par, info);
- if (!info->fix.nohwcursor)
- if (display && display->conp)
- e1356fb_createcursor( display );
- info->cursor.redraw = 1;
- if (oldbpp != var->bits_per_pixel || con < 0) {
- if ((err = fb_alloc_cmap(&display->cmap, 0, 0)))
- return err;
- e1356fb_install_cmap(display, &(info->fb_info));
- }
- }
-
- return 0;
- }
- static int
- e1356fb_pan_display(struct fb_var_screeninfo* var,
- int con,
- struct fb_info* fb)
- {
- struct fb_info_e1356* info = (struct fb_info_e1356*)fb;
- struct e1356fb_par* par = &info->current_par;
-
- //DPRINTK("n");
- if (info->fix.nopan)
- return -EINVAL;
- if ((int)var->xoffset < 0 ||
- var->xoffset + par->width > par->width_virt ||
- (int)var->yoffset < 0 ||
- var->yoffset + par->height > par->height_virt)
- return -EINVAL;
-
- if (con == currcon)
- do_pan_var(var, info);
-
- fb_display[con].var.xoffset = var->xoffset;
- fb_display[con].var.yoffset = var->yoffset;
- return 0;
- }
- static int
- e1356fb_get_cmap(struct fb_cmap *cmap,
- int kspc,
- int con,
- struct fb_info *fb)
- {
- struct fb_info_e1356* info = (struct fb_info_e1356*)fb;
- struct display *d = (con<0) ? fb->disp : fb_display + con;
-
- //DPRINTK("n");
- if (con == currcon) {
- /* current console? */
- return fb_get_cmap(cmap, kspc, e1356fb_getcolreg, fb);
- } else if (d->cmap.len) {
- /* non default colormap? */
- fb_copy_cmap(&d->cmap, cmap, kspc ? 0 : 2);
- } else {
- fb_copy_cmap(fb_default_cmap(info->current_par.cmap_len),
- cmap, kspc ? 0 : 2);
- }
- return 0;
- }
- static int
- e1356fb_set_cmap(struct fb_cmap *cmap,
- int kspc,
- int con,
- struct fb_info *fb)
- {
- struct display *d = (con<0) ? fb->disp : fb_display + con;
- struct fb_info_e1356 *info = (struct fb_info_e1356*)fb;
- int cmap_len = (info->current_par.bpp == 8) ? 256 : 16;
- //DPRINTK("n");
- if (d->cmap.len!=cmap_len) {
- int err;
- if ((err = fb_alloc_cmap(&d->cmap, cmap_len, 0)))
- return err;
- }
-
- if (con == currcon) {
- /* current console? */
- return fb_set_cmap(cmap, kspc, e1356fb_setcolreg, fb);
- } else {
- fb_copy_cmap(cmap, &d->cmap, kspc ? 0 : 1);
- }
- return 0;
- }
- static int
- e1356fb_mmap(struct fb_info *fb,
- struct file *file,
- struct vm_area_struct *vma)
- {
- struct fb_info_e1356 *info = (struct fb_info_e1356*)fb;
- unsigned int len;
- #if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32)
- u64 start=0, off;
- #else
- unsigned long start=0, off;
- #endif
- if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) {
- DPRINTK("invalid vma->vm_pgoffn");
- return -EINVAL;
- }
-
- #ifdef SHADOW_FRAME_BUFFER
- if (!info->shadow.fb) {
- int order = 0;
- while (info->fb_size > (PAGE_SIZE * (1 << order)))
- order++;
- info->shadow.fb = (void*)__get_free_pages(GFP_KERNEL, order);
- if (!info->shadow.fb) {
- DPRINTK("shadow fb alloc failedn");
- return -ENXIO;
- }
- memset(info->shadow.fb, 0, info->fb_size);
- init_timer(&info->shadow.timer);
- info->shadow.timer.function = do_write_shadow_fb;
- info->shadow.timer.data = (unsigned long)info;
- }
- mod_timer(&info->shadow.timer, jiffies+HZ/2);
- start = virt_to_phys(info->shadow.fb) & PAGE_MASK;
- #else
- start = info->fix.membase_phys & PAGE_MASK;
- #endif
- len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fb_size);
- off = vma->vm_pgoff << PAGE_SHIFT;
-
- if ((vma->vm_end - vma->vm_start + off) > len) {
- DPRINTK("invalid vman");
- return -EINVAL;
- }
- off += start;
- vma->vm_pgoff = off >> PAGE_SHIFT;
- pgprot_val(vma->vm_page_prot) &= ~_CACHE_MASK;
- #ifdef SHADOW_FRAME_BUFFER
- vma->vm_flags |= VM_RESERVED;
- pgprot_val(vma->vm_page_prot) &= ~_CACHE_UNCACHED;
- #else
- pgprot_val(vma->vm_page_prot) |= _CACHE_UNCACHED;
- #endif
- /* This is an IO map - tell maydump to skip this VMA */
- vma->vm_flags |= VM_IO;
- // FIXME: shouldn't have to do this. If the pages are marked writeable,
- // the TLB fault handlers should set these.
- pgprot_val(vma->vm_page_prot) |= (_PAGE_DIRTY | _PAGE_VALID);
-
- /*
- * The SED1356 has only a 16-bit wide data bus, and some
- * embedded platforms, such as the Pb1000, do not automatically
- * split 32-bit word accesses to the framebuffer into
- * seperate half-word accesses. Hence the upper half-word
- * never gets to the framebuffer. The following solution is
- * to intentionally return a non-32-bit-aligned VA. As long
- * as the user app assumes (and doesn't check) that the returned
- * VA is 32-bit aligned, all (assumed aligned) 32-bit accesses
- * will actually be unaligned and will get trapped by the MIPS
- * unaligned exception handler. This handler will emulate the
- * load/store instructions by splitting up the load/store
- * into two 16-bit load/stores. (This emulation is currently
- * enabled by default, but may be disabled in the future, when
- * alignment problems in user-level programs get fixed. When
- * that happens, this solution won't work anymore, unless the
- * process that mmap's the fb also calls sysmips(MIPS_FIXADE, 1),
- * which turns address-error emulation back on).
- *
- * Furthermore, this solution only seems to work for TinyX
- * (Xfbdev). Others, like Qt/E, do snoop the returned VA
- * and compensate, or do originally unaligned 32-bit accesses
- * which then become aligned, hence breaking this solution.
- */
- if (info->fix.mmunalign)
- vma->vm_start += 2;
-
- #if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32)
- if (e1356_remap_page_range(vma->vm_start, off,
- vma->vm_end - vma->vm_start,
- vma->vm_page_prot))
- return -EAGAIN;
- #else
- if (io_remap_page_range(vma->vm_start, off,
- vma->vm_end - vma->vm_start,
- vma->vm_page_prot))
- return -EAGAIN;
- #endif
- info->mmaped = 1;
- return 0;
- }
- int __init
- e1356fb_init(void)
- {
- struct fb_var_screeninfo var;
- struct e1356fb_fix * epfix = &fb_info.fix;
- e1356_reg_t* reg;
- void* regbase;
- char* name = "SED1356";
- int periodMCLK, periodBCLK;
- int dram_timing, rr_div, mclk_src;
- u8 rev_code, btmp, mclk_cfg;
- if (options) {
- e1356fb_setup(options, 0);
- }
- // clear out fb_info
- memset(&fb_info, 0, sizeof(struct fb_info_e1356));
- // copy boot options
- fb_info.fix = boot_fix;
- fb_info.default_par = boot_par;
- fb_info.regbase_size = E1356_REG_SIZE;
- if (!epfix->system) {
- printk(KERN_ERR "e1356/86fb: no valid system foundn");
- return -ENODEV;
- }
- if (epfix->system == SYS_SDU1356) {
- // it's the SDU1356B0C PCI eval card.
- struct pci_dev *pdev = NULL;
- if (!pci_present()) /* No PCI bus in this machine! */
- return -ENODEV;
- if (!(pdev = pci_find_device(PCI_VENDOR_ID_EPSON,
- PCI_DEVICE_ID_EPSON_SDU1356, pdev)))
- return -ENODEV;
- if (pci_enable_device(pdev))
- return -ENODEV;
- epfix->regbase_phys = pci_resource_start(pdev, 0);
- epfix->membase_phys = epfix->regbase_phys + E1356_REG_SIZE;
- }
-
- fb_info.regbase_virt = ioremap_nocache(epfix->regbase_phys,
- E1356_REG_SIZE);
- if (!fb_info.regbase_virt) {
- printk("e1356fb: Can't remap %s register area.n", name);
- return -ENXIO;
- }
- regbase = fb_info.regbase_virt;
- reg = &fb_info.reg;
-
- // Initialize the register pointers
- reg->basic = (reg_basic_t*) (regbase + REG_BASE_BASIC);
- reg->genio = (reg_genio_t*) (regbase + REG_BASE_GENIO);
- reg->md_cfg = (reg_mdcfg_t*) (regbase + REG_BASE_MDCFG);
- reg->clk_cfg = (reg_clkcfg_t*) (regbase + REG_BASE_CLKCFG);
- reg->mem_cfg = (reg_memcfg_t*) (regbase + REG_BASE_MEMCFG);
- reg->panel_cfg = (reg_panelcfg_t*)(regbase + REG_BASE_PANELCFG);
- reg->lcd_cfg = (reg_dispcfg_t*) (regbase + REG_BASE_LCD_DISPCFG);
- reg->crttv_cfg = (reg_dispcfg_t*) (regbase + REG_BASE_CRTTV_DISPCFG);
- reg->lcd_mode = (reg_dispmode_t*)(regbase + REG_BASE_LCD_DISPMODE);
- reg->crttv_mode = (reg_dispmode_t*)(regbase + REG_BASE_CRTTV_DISPMODE);
- reg->lcd_inkcurs = (reg_inkcurs_t*) (regbase + REG_BASE_LCD_INKCURS);
- reg->crttv_inkcurs = (reg_inkcurs_t*) (regbase + REG_BASE_CRTTV_INKCURS);
- reg->bitblt = (reg_bitblt_t*) (regbase + REG_BASE_BITBLT);
- reg->lut = (reg_lut_t*) (regbase + REG_BASE_LUT);
- reg->pwr_save = (reg_pwrsave_t*) (regbase + REG_BASE_PWRSAVE);
- reg->misc = (reg_misc_t*) (regbase + REG_BASE_MISC);
- reg->mediaplug = (reg_mediaplug_t*)(regbase + REG_BASE_MEDIAPLUG);
- reg->bitblt_data = (u16*) (regbase + REG_BASE_BITBLT_DATA);
-
- // Enable all register access
- writeb(0, ®->basic->misc);
- rev_code = readb(®->basic->rev_code);
- if ((rev_code >> 2) == 0x04) {
- printk("Found EPSON1356 Display Controllern");
- }
- else if ((rev_code >> 2) == 0x07) {
- printk("Found EPSON13806 Display Controllern");
- }
- else {
- iounmap(fb_info.regbase_virt);
- printk("e1356/806fb: %s not found, rev_code=0x%02x.n",
- name, rev_code);
- return -ENODEV;
- }
- fb_info.chip_rev = rev_code & 0x03;
- // Determine frame-buffer size
- switch (readb(®->md_cfg->md_cfg_stat0) >> 6) {
- case 0:
- case 2:
- fb_info.fb_size = 0x80000; /* 512K bytes */
- break;
- case 1:
- if ((rev_code >> 2) == 7) /* 806 */
- fb_info.fb_size = 0x140000; /* 1.2M bytes */
- else
- fb_info.fb_size = 0x200000; /* 2M bytes */
- break;
- default:
- fb_info.fb_size = 0x200000; /* 2M bytes */
- break;
- }
- fb_info.membase_virt = ioremap_nocache(epfix->membase_phys,
- fb_info.fb_size);
-
- if (!fb_info.membase_virt) {
- printk("e1356fb: Can't remap %s framebuffer.n", name);
- iounmap(fb_info.regbase_virt);
- return -ENXIO;
- }
-
- printk("e1356/806fb: Detected %dKB framebuffern",
- (unsigned)fb_info.fb_size/1000);
- #ifdef CONFIG_MTRR
- if (!epfix->nomtrr) {
- fb_info.mtrr_idx = mtrr_add(epfix->membase_phys, fb_info.fb_size,
- MTRR_TYPE_WRCOMB, 1);
- printk("e1356fb: MTRR's turned onn");
- }
- #endif
-
- if (!boot_fix.noaccel) {
- /*
- Allocate a page for string BLTs. A 4K page is
- enough for a 256 character string at an 8x16 font.
- */
- fb_info.putcs_buffer = (void*)__get_free_pages(GFP_KERNEL, 0);
- if (fb_info.putcs_buffer == NULL) {
- printk("e1356fb: Can't allocate putcs buffern");
- goto unmap_ret_enxio;
- }
- }
- // Begin SED1356 initialization
- // disable display while initializing
- writeb(0, ®->misc->disp_mode);
- // Set the GPIO1 and 2 to inputs
- writeb(0, ®->genio->gpio_cfg);
- writeb(0, ®->genio->gpio_ctrl);
- if (fb_info.chip_rev == 7) /* 806 */
- writeb(0, ®->genio->gpio_ctrl2);
- /*
- * Program the clocks
- */
- #ifdef CONFIG_MIPS_AU1000
- if ((epfix->system == SYS_PB1000) || (epfix->system == SYS_PB1500))
- epfix->busclk = get_au1000_lcd_clock();
- #endif
-
- if (epfix->busclk > 80000) {
- printk("e1356fb: specified busclk too highn");
- goto ret_enxio;
- }
- epfix->mclk = mclk_cfg = 0;
- if (epfix->system == SYS_PB1500) {
- epfix->mclk = epfix->busclk;
- mclk_cfg = 0x01;
- }
- else {
- // Find the highest allowable MCLK
- if (epfix->busclk <= MAX_PIXCLOCK &&
- epfix->busclk > epfix->mclk) {
- epfix->mclk = epfix->busclk;
- mclk_cfg = 0x01;
- }
- if (epfix->clki <= MAX_PIXCLOCK && epfix->clki > epfix->mclk) {
- epfix->mclk = epfix->clki;
- mclk_cfg = 0x00;
- }
- if (epfix->busclk/2 <= MAX_PIXCLOCK &&
- epfix->busclk/2 > epfix->mclk) {
- epfix->mclk = epfix->busclk/2;
- mclk_cfg = 0x11;
- }
- if (epfix->clki/2 <= MAX_PIXCLOCK &&
- epfix->clki/2 > epfix->mclk) {
- epfix->mclk = epfix->clki/2;
- mclk_cfg = 0x10;
- }
- }
-
- if (!epfix->mclk) {
- printk("e1356fb: couldn't find an allowable MCLK!n");
- goto ret_enxio;
- }
- // When changing mclk src, you must first set bit 4 to 1.
- writeb(readb(®->clk_cfg->mem_clk_cfg) | 0x10,
- ®->clk_cfg->mem_clk_cfg);
- writeb(mclk_cfg, ®->clk_cfg->mem_clk_cfg);
- printk("e1356fb: clocks (kHz): busclk=%d mclk=%d clki=%d clki2=%dn",
- epfix->busclk, epfix->mclk, epfix->clki, epfix->clki2);
- // Set max pixel clock
- switch (epfix->disp_type) {
- case DISP_TYPE_LCD:
- case DISP_TYPE_TFT:
- case DISP_TYPE_CRT:
- fb_info.max_pixclock = epfix->mclk;
- break;
- case DISP_TYPE_NTSC:
- case DISP_TYPE_PAL:
- fb_info.max_pixclock = (epfix->disp_type == DISP_TYPE_NTSC) ?
- NTSC_PIXCLOCK : PAL_PIXCLOCK;
- if (epfix->tv_filt & TV_FILT_FLICKER)
- fb_info.max_pixclock *= 2;
- break;
- default:
- printk("e1356fb: invalid specified display typen");
- goto ret_enxio;
- }
- periodMCLK = 1000000L / epfix->mclk; // in nano-seconds
- periodBCLK = 1000000L / epfix->busclk; // in nano-seconds
- if (readb(®->md_cfg->md_cfg_stat1) & (1<<4))
- periodBCLK *= 2;
-
- if ((epfix->system == SYS_PB1000) || (epfix->system == SYS_PB1500))
- writeb(0x00, ®->clk_cfg->cpu2mem_wait_sel);
- else if (periodMCLK - 4 > periodBCLK)
- writeb(0x02, ®->clk_cfg->cpu2mem_wait_sel);
- else if (2*periodMCLK - 4 > periodBCLK)
- writeb(0x01, ®->clk_cfg->cpu2mem_wait_sel);
- else
- writeb(0x00, ®->clk_cfg->cpu2mem_wait_sel);
- // Program memory config
- if (epfix->mem_type < MEM_TYPE_EDO_2CAS ||
- epfix->mem_type > MEM_TYPE_EMBEDDED_SDRAM) {
- printk("e1356fb: bad memory type specifiedn");
- goto ret_enxio;
- }
- writeb((u8)epfix->mem_type, ®->mem_cfg->mem_cfg);
- // calc closest refresh rate
- rr_div = 7;
- mclk_src = (mclk_cfg & 1) ? epfix->busclk : epfix->clki;
- while ((mclk_src >> (6 + rr_div)) < epfix->mem_refresh)
- if (--rr_div < 0) {
- printk("e1356fb: can't set specified refresh raten");
- goto ret_enxio;
- }
-
- DPRINTK("refresh rate = %d kHzn", (mclk_src >> (6 + rr_div)));
- // add Suspend-Mode Refresh bits
- if (epfix->mem_smr < MEM_SMR_CBR || epfix->mem_smr > MEM_SMR_NONE) {
- printk("e1356fb: invalid specified suspend-mode refresh typen");
- goto ret_enxio;
- }
- writeb(rr_div | (epfix->mem_smr << 6), ®->mem_cfg->dram_refresh);
- // set DRAM speed
- switch (epfix->mem_speed) {
- case 50:
- dram_timing = epfix->mclk >= 33000 ? 0x0101 : 0x0212;
- break;
- case 60:
- if (epfix->mclk >= 30000)
- dram_timing = 0x0101;
- else if (epfix->mclk >= 25000)
- dram_timing =
- (epfix->mem_type == MEM_TYPE_EDO_2CAS ||
- epfix->mem_type == MEM_TYPE_EDO_2WE) ?
- 0x0212 : 0x0101;
- else
- dram_timing = 0x0212;
- break;
- case 70:
- if (epfix->mclk >= 30000)
- dram_timing = 0x0000;
- else if (epfix->mclk >= 25000)
- dram_timing = 0x0101;
- else
- dram_timing =
- (epfix->mem_type == MEM_TYPE_EDO_2CAS ||
- epfix->mem_type == MEM_TYPE_EDO_2WE) ?
- 0x0212 : 0x0211;
- break;
- case 80:
- if (epfix->mclk >= 25000)
- dram_timing = 0x0100;
- else
- dram_timing = 0x0101;
- break;
- default:
- printk("e1356fb: invalid specified memory speedn");
- goto ret_enxio;
- }
- writew(dram_timing, ®->mem_cfg->dram_timings_ctrl0);
-
- currcon = -1;
- if (!epfix->nohwcursor)
- e1356fb_hwcursor_init(&fb_info);
-
- init_timer(&fb_info.cursor.timer);
- fb_info.cursor.timer.function = do_flashcursor;
- fb_info.cursor.timer.data = (unsigned long)(&fb_info);
- fb_info.cursor.state = CM_ERASE;
- spin_lock_init(&fb_info.cursor.lock);
-
- strcpy(fb_info.fb_info.modename, "Epson ");
- strcat(fb_info.fb_info.modename, name);
- fb_info.fb_info.changevar = NULL;
- fb_info.fb_info.node = -1;
- fb_info.fb_info.fbops = &e1356fb_ops;
- fb_info.fb_info.disp = &fb_info.disp;
- strcpy(fb_info.fb_info.fontname, epfix->fontname);
- fb_info.fb_info.switch_con = &e1356fb_switch_con;
- fb_info.fb_info.updatevar = &e1356fb_updatevar;
- fb_info.fb_info.blank = &e1356fb_blank;
- fb_info.fb_info.flags = FBINFO_FLAG_DEFAULT;
-
- // Set-up display
- // clear out unused stuff
- writeb(0, ®->panel_cfg->mod_rate);
- writeb(0x01, ®->lcd_mode->lcd_misc);
- writeb(0, ®->lcd_mode->fifo_high_thresh);
- writeb(0, ®->lcd_mode->fifo_low_thresh);
- writeb(0, ®->crttv_mode->fifo_high_thresh);
- writeb(0, ®->crttv_mode->fifo_low_thresh);
-
- switch (epfix->disp_type) {
- case DISP_TYPE_LCD:
- switch (epfix->panel_width) {
- case 4: btmp = (u8)(((epfix->panel_el & 1)<<7) | 0x04); break;
- case 8: btmp = (u8)(((epfix->panel_el & 1)<<7) | 0x14); break;
- case 16: btmp = (u8)(((epfix->panel_el & 1)<<7) | 0x24); break;
- default:
- printk("e1356fb: invalid specified LCD panel data widthn");
- goto ret_enxio;
- }
- writeb(btmp, ®->panel_cfg->panel_type);
- break;
- case DISP_TYPE_TFT:
- switch (epfix->panel_width) {
- case 9: btmp = (u8)(((epfix->panel_el & 1)<<7) | 0x05); break;
- case 12: btmp = (u8)(((epfix->panel_el & 1)<<7) | 0x15); break;
- case 18: btmp = (u8)(((epfix->panel_el & 1)<<7) | 0x25); break;
- default:
- printk("e1356fb: invalid specified TFT panel data widthn");
- goto ret_enxio;
- }
- writeb(btmp, ®->panel_cfg->panel_type);
- break;
- case DISP_TYPE_CRT:
- writeb(0x00, ®->crttv_cfg->tv_output_ctrl);
- break;
- case DISP_TYPE_NTSC:
- case DISP_TYPE_PAL:
- if (epfix->tv_fmt < TV_FMT_COMPOSITE ||
- epfix->tv_fmt > TV_FMT_S_VIDEO) {
- printk("e1356fb: invalid specified TV output formatn");
- goto ret_enxio;
- }
- btmp = epfix->disp_type == DISP_TYPE_PAL ? 0x01 : 0x00;
- btmp |= (epfix->tv_fmt == TV_FMT_S_VIDEO ? 0x02 : 0x00);
- btmp |= ((epfix->tv_filt & TV_FILT_LUM) ? 0x10 : 0x00);
- btmp |= ((epfix->tv_filt & TV_FILT_CHROM) ? 0x20 : 0x00);
- writeb(btmp, ®->crttv_cfg->tv_output_ctrl);
- break;
- }
- memset(&var, 0, sizeof(var));
- /*
- * If mode_option wasn't given at boot, assume all the boot
- * option timing parameters were specified individually, in
- * which case we convert par_to_var instead of calling
- * fb_find_mode.
- */
- if (epfix->mode_option) {
- struct fb_videomode* modedb, *dm;
- int dbsize = e1356fb_get_mode(&fb_info, 640, 480, &modedb, &dm);
- // first try the generic modedb
- if (!fb_find_mode(&var, &fb_info.fb_info, epfix->mode_option,
- NULL, 0, NULL, boot_par.bpp)) {
- printk("e1356fb: mode %s failed, trying e1356 modedbn",
- epfix->mode_option);
- // didn't work in generic modedb, try ours
- if (!fb_find_mode(&var, &fb_info.fb_info,
- epfix->mode_option,
- modedb, dbsize, dm, boot_par.bpp)) {
- printk("e1356fb: mode %s failed e1356 modedb too, sorryn",
- epfix->mode_option);
-
- goto ret_enxio;
- }
- }
- var.xres_virtual = boot_par.width_virt ?
- boot_par.width_virt : boot_par.width;
- var.yres_virtual = boot_par.height_virt ?
- boot_par.height_virt : boot_par.height;
- } else {
- if (e1356fb_par_to_var(&var, &fb_info.default_par, &fb_info)) {
- printk("e1356fb: boot option mode failedn");
- goto ret_enxio;
- }
- }
-
- if (boot_fix.noaccel)
- var.accel_flags &= ~FB_ACCELF_TEXT;
- else
- var.accel_flags |= FB_ACCELF_TEXT;
-
- if (e1356fb_var_to_par(&var, &fb_info.default_par, &fb_info)) {
- /*
- * Can't use the mode from the mode db or the default
- * mode or the boot options - give up
- */
- printk("e1356fb: mode failed var_to_parn");
- goto ret_enxio;
- }
-
- fb_info.disp.screen_base = fb_info.membase_virt;
- fb_info.disp.var = var; // struct copy
-
- // here's where the screen is actually initialized and enabled
- if (e1356fb_set_var(&var, -1, &fb_info.fb_info)) {
- printk("e1356fb: can't set video moden");
- goto ret_enxio;
- }
-
- writeb(0, ®->pwr_save->cfg); // disable power-save mode
- writeb(0, ®->misc->cpu2mem_watchdog); // disable watchdog timer
- #ifdef E1356FB_VERBOSE_DEBUG
- dump_fb(fb_info.membase_virt + 0x100000, 512);
- #endif
- if (register_framebuffer(&fb_info.fb_info) < 0) {
- writeb(0, ®->misc->disp_mode);
- printk("e1356fb: can't register framebuffern");
- goto ret_enxio;
- }
-
- printk("fb%d: %s frame buffer devicen",
- GET_FB_IDX(fb_info.fb_info.node),
- fb_info.fb_info.modename);
-
-
- return 0;
- ret_enxio:
- free_pages((unsigned long)fb_info.putcs_buffer, 0);
- unmap_ret_enxio:
- iounmap(fb_info.regbase_virt);
- iounmap(fb_info.membase_virt);
- return -ENXIO;
- }
- /**
- * e1356fb_exit - Driver cleanup
- *
- * Releases all resources allocated during the
- * course of the driver's lifetime.
- *
- * FIXME - do results of fb_alloc_cmap need disposal?
- */
- static void __exit
- e1356fb_exit (void)
- {
- unregister_framebuffer(&fb_info.fb_info);
- del_timer_sync(&fb_info.cursor.timer);
- #ifdef CONFIG_MTRR
- if (!fb_info.fix.nomtrr) {
- mtrr_del(fb_info.mtrr_idx, fb_info.fix.membase_phys,
- fb_info.fb_size);
- printk("fb: MTRR's turned offn");
- }
- #endif
- free_pages((unsigned long)fb_info.putcs_buffer, 0);
- iounmap(fb_info.regbase_virt);
- iounmap(fb_info.membase_virt);
- }
- MODULE_AUTHOR("Steve Longerbeam <stevel@mvista.com>");
- MODULE_DESCRIPTION("SED1356 framebuffer device driver");
- #ifdef MODULE
- module_init(e1356fb_init);
- #endif
- module_exit(e1356fb_exit);
- void
- e1356fb_setup(char *options, int *ints)
- {
- char* this_opt;
-
- memset(&boot_fix, 0, sizeof(struct e1356fb_fix));
- memset(&boot_par, 0, sizeof(struct e1356fb_par));
- boot_fix.system = -1;
-
- if (!options || !*options)
- return;
-
- for(this_opt=strtok(options, ","); this_opt;
- this_opt=strtok(NULL, ",")) {
- if (!strncmp(this_opt, "noaccel", 7)) {
- boot_fix.noaccel = 1;
- } else if (!strncmp(this_opt, "nopan", 5)) {
- boot_fix.nopan = 1;
- } else if (!strncmp(this_opt, "nohwcursor", 10)) {
- boot_fix.nohwcursor = 1;
- } else if (!strncmp(this_opt, "mmunalign:", 10)) {
- boot_fix.mmunalign = simple_strtoul(this_opt+10,
- NULL, 0);
- #ifdef CONFIG_MTRR
- } else if (!strncmp(this_opt, "nomtrr", 6)) {
- boot_fix.nomtrr = 1;
- #endif
- } else if (!strncmp(this_opt, "font:", 5)) {
- strncpy(boot_fix.fontname, this_opt+5,
- sizeof(boot_fix.fontname)-1);
- } else if (!strncmp(this_opt, "regbase:", 8)) {
- boot_fix.regbase_phys = simple_strtoul(this_opt+8,
- NULL, 0);
- } else if (!strncmp(this_opt, "membase:", 8)) {
- boot_fix.membase_phys = simple_strtoul(this_opt+8,
- NULL, 0);
- } else if (!strncmp(this_opt, "memsp:", 6)) {
- boot_fix.mem_speed = simple_strtoul(this_opt+6,
- NULL, 0);
- } else if (!strncmp(this_opt, "memtyp:", 7)) {
- boot_fix.mem_type = simple_strtoul(this_opt+7,
- NULL, 0);
- } else if (!strncmp(this_opt, "memref:", 7)) {
- boot_fix.mem_refresh = simple_strtoul(this_opt+7,
- NULL, 0);
- } else if (!strncmp(this_opt, "memsmr:", 7)) {
- boot_fix.mem_smr = simple_strtoul(this_opt+7, NULL, 0);
- } else if (!strncmp(this_opt, "busclk:", 7)) {
- boot_fix.busclk = simple_strtoul(this_opt+7, NULL, 0);
- } else if (!strncmp(this_opt, "clki:", 5)) {
- boot_fix.clki = simple_strtoul(this_opt+5, NULL, 0);
- } else if (!strncmp(this_opt, "clki2:", 6)) {
- boot_fix.clki2 = simple_strtoul(this_opt+6, NULL, 0);
- } else if (!strncmp(this_opt, "display:", 8)) {
- if (!strncmp(this_opt+8, "lcd", 3))
- boot_fix.disp_type = DISP_TYPE_LCD;
- else if (!strncmp(this_opt+8, "tft", 3))
- boot_fix.disp_type = DISP_TYPE_TFT;
- else if (!strncmp(this_opt+8, "crt", 3))
- boot_fix.disp_type = DISP_TYPE_CRT;
- else if (!strncmp(this_opt+8, "pal", 3))
- boot_fix.disp_type = DISP_TYPE_PAL;
- else if (!strncmp(this_opt+8, "ntsc", 4))
- boot_fix.disp_type = DISP_TYPE_NTSC;
- } else if (!strncmp(this_opt, "width:", 6)) {
- boot_par.width = simple_strtoul(this_opt+6, NULL, 0);
- } else if (!strncmp(this_opt, "height:", 7)) {
- boot_par.height = simple_strtoul(this_opt+7, NULL, 0);
- } else if (!strncmp(this_opt, "bpp:", 4)) {
- boot_par.bpp = simple_strtoul(this_opt+4, NULL, 0);
- boot_par.cmap_len = (boot_par.bpp == 8) ? 256 : 16;
- } else if (!strncmp(this_opt, "elpanel:", 8)) {
- boot_fix.panel_el = simple_strtoul(this_opt+8,
- NULL, 0);
- } else if (!strncmp(this_opt, "pdataw:", 7)) {
- boot_fix.panel_width = simple_strtoul(this_opt+7,
- NULL, 0);
- } else if (!strncmp(this_opt, "hndp:", 5)) {
- boot_par.horiz_ndp = simple_strtoul(this_opt+5,
- NULL, 0);
- } else if (!strncmp(this_opt, "vndp:", 5)) {
- boot_par.vert_ndp = simple_strtoul(this_opt+5,
- NULL, 0);
- } else if (!strncmp(this_opt, "hspol:", 6)) {
- boot_par.hsync_pol = simple_strtoul(this_opt+6,
- NULL, 0);
- } else if (!strncmp(this_opt, "vspol:", 6)) {
- boot_par.vsync_pol = simple_strtoul(this_opt+6,
- NULL, 0);
- } else if (!strncmp(this_opt, "hsstart:", 8)) {
- boot_par.hsync_start = simple_strtoul(this_opt+8,
- NULL, 0);
- } else if (!strncmp(this_opt, "hswidth:", 8)) {
- boot_par.hsync_width = simple_strtoul(this_opt+8,
- NULL, 0);
- } else if (!strncmp(this_opt, "vsstart:", 8)) {
- boot_par.vsync_start = simple_strtoul(this_opt+8,
- NULL, 0);
- } else if (!strncmp(this_opt, "vswidth:", 8)) {
- boot_par.vsync_width = simple_strtoul(this_opt+8,
- NULL, 0);
- } else if (!strncmp(this_opt, "tvfilt:", 7)) {
- boot_fix.tv_filt = simple_strtoul(this_opt+7, NULL, 0);
- } else if (!strncmp(this_opt, "tvfmt:", 6)) {
- boot_fix.tv_fmt = simple_strtoul(this_opt+6, NULL, 0);
- } else if (!strncmp(this_opt, "system:", 7)) {
- if (!strncmp(this_opt+7, "pb1000", 10)) {
- boot_fix = systems[SYS_PB1000].fix;
- boot_par = systems[SYS_PB1000].par;
- } else if (!strncmp(this_opt+7, "pb1500", 7)) {
- boot_fix = systems[SYS_PB1500].fix;
- boot_par = systems[SYS_PB1500].par;
- } else if (!strncmp(this_opt+7, "sdu1356", 7)) {
- boot_fix = systems[SYS_SDU1356].fix;
- boot_par = systems[SYS_SDU1356].par;
- } else if (!strncmp(this_opt+7, "clio1050", 7)) {
- boot_fix = systems[SYS_CLIO1050].fix;
- boot_par = systems[SYS_CLIO1050].par;
- }
- } else {
- boot_fix.mode_option = this_opt;
- }
- }
- }
- /*
- * FIXME: switching consoles could be dangerous. What if switching
- * from a panel to a CRT/TV, or vice versa? More needs to be
- * done here.
- */
- static int
- e1356fb_switch_con(int con, struct fb_info *fb)
- {
- struct fb_info_e1356 *info = (struct fb_info_e1356*)fb;
- struct e1356fb_par par;
- int old_con = currcon;
- int set_par = 1;
- //DPRINTK("n");
- /* Do we have to save the colormap? */
- if (currcon>=0)
- if (fb_display[currcon].cmap.len)
- fb_get_cmap(&fb_display[currcon].cmap, 1,
- e1356fb_getcolreg, fb);
-
- currcon = con;
- fb_display[currcon].var.activate = FB_ACTIVATE_NOW;
- e1356fb_var_to_par(&fb_display[con].var, &par, info);
- if (old_con>=0 && vt_cons[old_con]->vc_mode!=KD_GRAPHICS) {
- /* check if we have to change video registers */
- struct e1356fb_par old_par;
- e1356fb_var_to_par(&fb_display[old_con].var, &old_par, info);
- if (!memcmp(&par,&old_par,sizeof(par)))
- set_par = 0; /* avoid flicker */
- }
- if (set_par)
- e1356fb_set_par(&par, info);
-
- if (fb_display[con].dispsw && fb_display[con].conp)
- fb_con.con_cursor(fb_display[con].conp, CM_ERASE);
-
- del_timer(&(info->cursor.timer));
- fb_info.cursor.state=CM_ERASE;
-
- if (!info->fix.nohwcursor)
- if (fb_display[con].conp)
- e1356fb_createcursor( &fb_display[con] );
-
- info->cursor.redraw=1;
-
- e1356fb_set_dispsw(&fb_display[con],
- info,
- par.bpp,
- fb_display[con].var.accel_flags & FB_ACCELF_TEXT);
-
- e1356fb_install_cmap(&fb_display[con], fb);
- e1356fb_updatevar(con, fb);
-
- return 1;
- }
- /* 0 unblank, 1 blank, 2 no vsync, 3 no hsync, 4 off */
- static void
- e1356fb_blank(int blank, struct fb_info *fb)
- {
- struct fb_info_e1356 *info = (struct fb_info_e1356*)fb;
- reg_dispmode_t* dispmode = (IS_PANEL(info->fix.disp_type)) ?
- info->reg.lcd_mode : info->reg.crttv_mode;
- reg_pwrsave_t* pwrsave = info->reg.pwr_save;
- //DPRINTK("n");
- switch (blank) {
- case 0:
- // Get out of power save mode
- writeb(0x00, &pwrsave->cfg);
- writeb(readb(&dispmode->disp_mode) & ~0x80,
- &dispmode->disp_mode);
- break;
- case 1:
- // Get out of power save mode
- writeb(0x00, &pwrsave->cfg);
- writeb(readb(&dispmode->disp_mode) | 0x80,
- &dispmode->disp_mode);
- break;
- // No support for turning off horiz or vert sync, so just treat
- // it as a power off.
- case 2:
- case 3:
- case 4:
- writeb(0x01, &pwrsave->cfg);
- break;
- }
- }
- static int
- e1356fb_updatevar(int con, struct fb_info* fb)
- {
- struct fb_info_e1356* i = (struct fb_info_e1356*)fb;
- //DPRINTK("n");
- if ((con==currcon) && (!i->fix.nopan))
- do_pan_var(&fb_display[con].var,i);
- return 0;
- }
- static int
- e1356fb_getcolreg(unsigned regno,
- unsigned* red,
- unsigned* green,
- unsigned* blue,
- unsigned* transp,
- struct fb_info* fb)
- {
- struct fb_info_e1356* i = (struct fb_info_e1356*)fb;
- if (regno > i->current_par.cmap_len)
- return 1;
-
- *red = i->palette[regno].red;
- *green = i->palette[regno].green;
- *blue = i->palette[regno].blue;
- *transp = 0;
-
- return 0;
- }
- static int
- e1356fb_setcolreg(unsigned regno,
- unsigned red,
- unsigned green,
- unsigned blue,
- unsigned transp,
- struct fb_info* info)
- {
- struct fb_info_e1356* i = (struct fb_info_e1356*)info;
- if (regno > 255)
- return 1;
- i->palette[regno].red = red;
- i->palette[regno].green = green;
- i->palette[regno].blue = blue;
-
- switch(i->current_par.bpp) {
- #ifdef FBCON_HAS_CFB8
- case 8:
- do_setpalentry(i->reg.lut, regno,
- (u8)(red>>8), (u8)(green>>8), (u8)(blue>>8));
- break;
- #endif
- #ifdef FBCON_HAS_CFB16
- case 16:
- i->fbcon_cmap16[regno] = (regno << 10) | (regno << 5) | regno;
- break;
- #endif
- default:
- DPRINTK("bad depth %un", i->current_par.bpp);
- break;
- }
- return 0;
- }
- static void
- e1356fb_install_cmap(struct display *d, struct fb_info *info)
- {
- struct fb_info_e1356* i = (struct fb_info_e1356*)info;
- //DPRINTK("n");
- if (d->cmap.len) {
- fb_set_cmap(&(d->cmap), 1, e1356fb_setcolreg, info);
- } else {
- fb_set_cmap(fb_default_cmap(i->current_par.cmap_len), 1,
- e1356fb_setcolreg, info);
- }
- }
- static void
- e1356fb_createcursorshape(struct display* p)
- {
- int h,u;
-
- h = fontheight(p);
- fb_info.cursor.type = p->conp->vc_cursor_type & CUR_HWMASK;
- switch (fb_info.cursor.type) {
- case CUR_NONE:
- u = h;
- break;
- case CUR_UNDERLINE:
- u = h - 2;
- break;
- case CUR_LOWER_THIRD:
- u = (h * 2) / 3;
- break;
- case CUR_LOWER_HALF:
- u = h / 2;
- break;
- case CUR_TWO_THIRDS:
- u = h / 3;
- break;
- case CUR_BLOCK:
- default:
- u = 0;
- break;
- }
-
- fb_info.cursor.w = fontwidth_x8(p);
- fb_info.cursor.u = u;
- fb_info.cursor.h = h;
- }
-
- static void
- e1356fb_createcursor(struct display *p)
- {
- void* memcursor;
- int y, w, h, u;
-
- e1356fb_createcursorshape(p);
- h = fb_info.cursor.h;
- w = fb_info.cursor.w;
- u = fb_info.cursor.u;
- memcursor = fb_info.membase_virt + fb_info.fb_size;
- // write cursor to display memory
- for (y=0; y<64; y++) {
- if (y >= h || y < u) {
- fbfill((u16*)memcursor, 0xaa, 16); // b/g
- } else {
- fbfill((u16*)memcursor, 0xff, w/4); // inverted b/g
- fbfill((u16*)memcursor + w/4, 0xaa, (64 - w)/4); // b/g
- }
- memcursor += 16;
- }
- }
-
- static void
- e1356fb_hwcursor_init(struct fb_info_e1356* info)
- {
- reg_inkcurs_t* inkcurs = (IS_PANEL(info->fix.disp_type)) ?
- info->reg.lcd_inkcurs : info->reg.crttv_inkcurs;
- fb_info.fb_size -= 1024;
- // program cursor base address
- writeb(0x00, &inkcurs->start_addr);
- printk("e1356fb: reserving 1024 bytes for the hwcursor at %pn",
- fb_info.membase_virt + fb_info.fb_size);
- }
- #if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32)
- /*
- * Return indicates whether a page was freed so caller can adjust rss
- */
- static inline void forget_pte(pte_t page)
- {
- if (!pte_none(page)) {
- printk("forget_pte: old mapping existed!n");
- BUG();
- }
- }
- /*
- * maps a range of physical memory into the requested pages. the old
- * mappings are removed. any references to nonexistent pages results
- * in null mappings (currently treated as "copy-on-access")
- */
- static inline void e1356_remap_pte_range(pte_t * pte, unsigned long address, unsigned long size,
- phys_t phys_addr, pgprot_t prot)
- {
- unsigned long end;
- address &= ~PMD_MASK;
- end = address + size;
- if (end > PMD_SIZE)
- end = PMD_SIZE;
- do {
- struct page *page;
- pte_t oldpage;
- oldpage = ptep_get_and_clear(pte);
- page = virt_to_page(__va(phys_addr));
- if ((!VALID_PAGE(page)) || PageReserved(page))
- set_pte(pte, mk_pte_phys(phys_addr, prot));
- forget_pte(oldpage);
- address += PAGE_SIZE;
- phys_addr += PAGE_SIZE;
- pte++;
- } while (address && (address < end));
- }
- static inline int e1356_remap_pmd_range(struct mm_struct *mm, pmd_t * pmd, unsigned long address, unsigned long size,
- phys_t phys_addr, pgprot_t prot)
- {
- unsigned long end;
- address &= ~PGDIR_MASK;
- end = address + size;
- if (end > PGDIR_SIZE)
- end = PGDIR_SIZE;
- phys_addr -= address;
- do {
- pte_t * pte = pte_alloc(mm, pmd, address);
- if (!pte)
- return -ENOMEM;
- e1356_remap_pte_range(pte, address, end - address, address + phys_addr, prot);
- address = (address + PMD_SIZE) & PMD_MASK;
- pmd++;
- } while (address && (address < end));
- return 0;
- }
- /* Note: this is only safe if the mm semaphore is held when called. */
- static int e1356_remap_page_range(unsigned long from, phys_t phys_addr, unsigned long size, pgprot_t prot)
- {
- int error = 0;
- pgd_t * dir;
- phys_t beg = from;
- phys_t end = from + size;
- struct mm_struct *mm = current->mm;
- phys_addr -= from;
- dir = pgd_offset(mm, from);
- flush_cache_range(mm, beg, end);
- if (from >= end)
- BUG();
- spin_lock(&mm->page_table_lock);
- do {
- pmd_t *pmd = pmd_alloc(mm, dir, from);
- error = -ENOMEM;
- if (!pmd)
- break;
- error = e1356_remap_pmd_range(mm, pmd, from, end - from, phys_addr + from, prot);
- if (error)
- break;
- from = (from + PGDIR_SIZE) & PGDIR_MASK;
- dir++;
- } while (from && (from < end));
- spin_unlock(&mm->page_table_lock);
- flush_tlb_range(mm, beg, end);
- return error;
- }
- #endif