| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Ralf Baechle | 6861 | 82.12% | 1 | 3.85% |
| Manuel Lauss | 1404 | 16.80% | 10 | 38.46% |
| Christophe Jaillet | 67 | 0.80% | 5 | 19.23% |
| Linus Torvalds | 5 | 0.06% | 1 | 3.85% |
| Al Viro | 3 | 0.04% | 1 | 3.85% |
| Yoann Padioleau | 3 | 0.04% | 1 | 3.85% |
| Tejun Heo | 3 | 0.04% | 1 | 3.85% |
| Christoph Hellwig | 3 | 0.04% | 1 | 3.85% |
| Hanjun Guo | 2 | 0.02% | 1 | 3.85% |
| Colin Ian King | 1 | 0.01% | 1 | 3.85% |
| Hagen Paul Pfeifer | 1 | 0.01% | 1 | 3.85% |
| Lei Ming | 1 | 0.01% | 1 | 3.85% |
| Lucas De Marchi | 1 | 0.01% | 1 | 3.85% |
| Total | 8355 | 26 |
/* * BRIEF MODULE DESCRIPTION * Au1200 LCD Driver. * * Copyright 2004-2005 AMD * Author: AMD * * 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/clk.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/kernel.h> #include <linux/errno.h> #include <linux/string.h> #include <linux/mm.h> #include <linux/fb.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/ctype.h> #include <linux/dma-mapping.h> #include <linux/slab.h> #include <linux/uaccess.h> #include <asm/mach-au1x00/au1000.h> #include <asm/mach-au1x00/au1200fb.h> /* platform_data */ #include "au1200fb.h" #define DRIVER_NAME "au1200fb" #define DRIVER_DESC "LCD controller driver for AU1200 processors" #define DEBUG 0 #define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg) #define print_warn(f, arg...) printk(KERN_WARNING DRIVER_NAME ": " f "\n", ## arg) #define print_info(f, arg...) printk(KERN_INFO DRIVER_NAME ": " f "\n", ## arg) #if DEBUG #define print_dbg(f, arg...) printk(KERN_DEBUG __FILE__ ": " f "\n", ## arg) #else #define print_dbg(f, arg...) do {} while (0) #endif #define AU1200_LCD_FB_IOCTL 0x46FF #define AU1200_LCD_SET_SCREEN 1 #define AU1200_LCD_GET_SCREEN 2 #define AU1200_LCD_SET_WINDOW 3 #define AU1200_LCD_GET_WINDOW 4 #define AU1200_LCD_SET_PANEL 5 #define AU1200_LCD_GET_PANEL 6 #define SCREEN_SIZE (1<< 1) #define SCREEN_BACKCOLOR (1<< 2) #define SCREEN_BRIGHTNESS (1<< 3) #define SCREEN_COLORKEY (1<< 4) #define SCREEN_MASK (1<< 5) struct au1200_lcd_global_regs_t { unsigned int flags; unsigned int xsize; unsigned int ysize; unsigned int backcolor; unsigned int brightness; unsigned int colorkey; unsigned int mask; unsigned int panel_choice; char panel_desc[80]; }; #define WIN_POSITION (1<< 0) #define WIN_ALPHA_COLOR (1<< 1) #define WIN_ALPHA_MODE (1<< 2) #define WIN_PRIORITY (1<< 3) #define WIN_CHANNEL (1<< 4) #define WIN_BUFFER_FORMAT (1<< 5) #define WIN_COLOR_ORDER (1<< 6) #define WIN_PIXEL_ORDER (1<< 7) #define WIN_SIZE (1<< 8) #define WIN_COLORKEY_MODE (1<< 9) #define WIN_DOUBLE_BUFFER_MODE (1<< 10) #define WIN_RAM_ARRAY_MODE (1<< 11) #define WIN_BUFFER_SCALE (1<< 12) #define WIN_ENABLE (1<< 13) struct au1200_lcd_window_regs_t { unsigned int flags; unsigned int xpos; unsigned int ypos; unsigned int alpha_color; unsigned int alpha_mode; unsigned int priority; unsigned int channel; unsigned int buffer_format; unsigned int color_order; unsigned int pixel_order; unsigned int xsize; unsigned int ysize; unsigned int colorkey_mode; unsigned int double_buffer_mode; unsigned int ram_array_mode; unsigned int xscale; unsigned int yscale; unsigned int enable; }; struct au1200_lcd_iodata_t { unsigned int subcmd; struct au1200_lcd_global_regs_t global; struct au1200_lcd_window_regs_t window; }; #if defined(__BIG_ENDIAN) #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_11 #else #define LCD_CONTROL_DEFAULT_PO LCD_CONTROL_PO_00 #endif #define LCD_CONTROL_DEFAULT_SBPPF LCD_CONTROL_SBPPF_565 /* Private, per-framebuffer management information (independent of the panel itself) */ struct au1200fb_device { struct fb_info *fb_info; /* FB driver info record */ struct au1200fb_platdata *pd; int plane; unsigned char* fb_mem; /* FrameBuffer memory map */ unsigned int fb_len; dma_addr_t fb_phys; }; /********************************************************************/ /* LCD controller restrictions */ #define AU1200_LCD_MAX_XRES 1280 #define AU1200_LCD_MAX_YRES 1024 #define AU1200_LCD_MAX_BPP 32 #define AU1200_LCD_MAX_CLK 96000000 /* fixme: this needs to go away ? */ #define AU1200_LCD_NBR_PALETTE_ENTRIES 256 /* Default number of visible screen buffer to allocate */ #define AU1200FB_NBR_VIDEO_BUFFERS 1 /* Default maximum number of fb devices to create */ #define MAX_DEVICE_COUNT 4 /* Default window configuration entry to use (see windows[]) */ #define DEFAULT_WINDOW_INDEX 2 /********************************************************************/ static struct fb_info *_au1200fb_infos[MAX_DEVICE_COUNT]; static struct au1200_lcd *lcd = (struct au1200_lcd *) AU1200_LCD_ADDR; static int device_count = MAX_DEVICE_COUNT; static int window_index = DEFAULT_WINDOW_INDEX; /* default is zero */ static int panel_index = 2; /* default is zero */ static struct window_settings *win; static struct panel_settings *panel; static int noblanking = 1; static int nohwcursor = 0; struct window_settings { unsigned char name[64]; uint32 mode_backcolor; uint32 mode_colorkey; uint32 mode_colorkeymsk; struct { int xres; int yres; int xpos; int ypos; uint32 mode_winctrl1; /* winctrl1[FRM,CCO,PO,PIPE] */ uint32 mode_winenable; } w[4]; }; #if defined(__BIG_ENDIAN) #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_00 #else #define LCD_WINCTRL1_PO_16BPP LCD_WINCTRL1_PO_01 #endif /* * Default window configurations */ static struct window_settings windows[] = { { /* Index 0 */ "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", /* mode_backcolor */ 0x006600ff, /* mode_colorkey,msk*/ 0, 0, { { /* xres, yres, xpos, ypos */ 0, 0, 0, 0, /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | LCD_WINCTRL1_PO_16BPP, /* mode_winenable*/ LCD_WINENABLE_WEN0, }, { /* xres, yres, xpos, ypos */ 100, 100, 100, 100, /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | LCD_WINCTRL1_PO_16BPP | LCD_WINCTRL1_PIPE, /* mode_winenable*/ LCD_WINENABLE_WEN1, }, { /* xres, yres, xpos, ypos */ 0, 0, 0, 0, /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | LCD_WINCTRL1_PO_16BPP, /* mode_winenable*/ 0, }, { /* xres, yres, xpos, ypos */ 0, 0, 0, 0, /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | LCD_WINCTRL1_PO_16BPP | LCD_WINCTRL1_PIPE, /* mode_winenable*/ 0, }, }, }, { /* Index 1 */ "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", /* mode_backcolor */ 0x006600ff, /* mode_colorkey,msk*/ 0, 0, { { /* xres, yres, xpos, ypos */ 320, 240, 5, 5, /* mode_winctrl1 */ LCD_WINCTRL1_FRM_24BPP | LCD_WINCTRL1_PO_00, /* mode_winenable*/ LCD_WINENABLE_WEN0, }, { /* xres, yres, xpos, ypos */ 0, 0, 0, 0, /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | LCD_WINCTRL1_PO_16BPP, /* mode_winenable*/ 0, }, { /* xres, yres, xpos, ypos */ 100, 100, 0, 0, /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | LCD_WINCTRL1_PO_16BPP | LCD_WINCTRL1_PIPE, /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, }, { /* xres, yres, xpos, ypos */ 200, 25, 0, 0, /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | LCD_WINCTRL1_PO_16BPP | LCD_WINCTRL1_PIPE, /* mode_winenable*/ 0, }, }, }, { /* Index 2 */ "0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx", /* mode_backcolor */ 0x006600ff, /* mode_colorkey,msk*/ 0, 0, { { /* xres, yres, xpos, ypos */ 0, 0, 0, 0, /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | LCD_WINCTRL1_PO_16BPP, /* mode_winenable*/ LCD_WINENABLE_WEN0, }, { /* xres, yres, xpos, ypos */ 0, 0, 0, 0, /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | LCD_WINCTRL1_PO_16BPP, /* mode_winenable*/ 0, }, { /* xres, yres, xpos, ypos */ 0, 0, 0, 0, /* mode_winctrl1 */ LCD_WINCTRL1_FRM_32BPP | LCD_WINCTRL1_PO_00|LCD_WINCTRL1_PIPE, /* mode_winenable*/ 0/*LCD_WINENABLE_WEN2*/, }, { /* xres, yres, xpos, ypos */ 0, 0, 0, 0, /* mode_winctrl1 */ LCD_WINCTRL1_FRM_16BPP565 | LCD_WINCTRL1_PO_16BPP | LCD_WINCTRL1_PIPE, /* mode_winenable*/ 0, }, }, }, /* Need VGA 640 @ 24bpp, @ 32bpp */ /* Need VGA 800 @ 24bpp, @ 32bpp */ /* Need VGA 1024 @ 24bpp, @ 32bpp */ }; /* * Controller configurations for various panels. */ struct panel_settings { const char name[25]; /* Full name <vendor>_<model> */ struct fb_monspecs monspecs; /* FB monitor specs */ /* panel timings */ uint32 mode_screen; uint32 mode_horztiming; uint32 mode_verttiming; uint32 mode_clkcontrol; uint32 mode_pwmdiv; uint32 mode_pwmhi; uint32 mode_outmask; uint32 mode_fifoctrl; uint32 mode_backlight; uint32 lcdclk; #define Xres min_xres #define Yres min_yres u32 min_xres; /* Minimum horizontal resolution */ u32 max_xres; /* Maximum horizontal resolution */ u32 min_yres; /* Minimum vertical resolution */ u32 max_yres; /* Maximum vertical resolution */ }; /********************************************************************/ /* fixme: Maybe a modedb for the CRT ? otherwise panels should be as-is */ /* List of panels known to work with the AU1200 LCD controller. * To add a new panel, enter the same specifications as the * Generic_TFT one, and MAKE SURE that it doesn't conflicts * with the controller restrictions. Restrictions are: * * STN color panels: max_bpp <= 12 * STN mono panels: max_bpp <= 4 * TFT panels: max_bpp <= 16 * max_xres <= 800 * max_yres <= 600 */ static struct panel_settings known_lcd_panels[] = { [0] = { /* QVGA 320x240 H:33.3kHz V:110Hz */ .name = "QVGA_320x240", .monspecs = { .modedb = NULL, .modedb_len = 0, .hfmin = 30000, .hfmax = 70000, .vfmin = 60, .vfmax = 60, .dclkmin = 6000000, .dclkmax = 28000000, .input = FB_DISP_RGB, }, .mode_screen = LCD_SCREEN_SX_N(320) | LCD_SCREEN_SY_N(240), .mode_horztiming = 0x00c4623b, .mode_verttiming = 0x00502814, .mode_clkcontrol = 0x00020002, /* /4=24Mhz */ .mode_pwmdiv = 0x00000000, .mode_pwmhi = 0x00000000, .mode_outmask = 0x00FFFFFF, .mode_fifoctrl = 0x2f2f2f2f, .mode_backlight = 0x00000000, .lcdclk = 96, 320, 320, 240, 240, }, [1] = { /* VGA 640x480 H:30.3kHz V:58Hz */ .name = "VGA_640x480", .monspecs = { .modedb = NULL, .modedb_len = 0, .hfmin = 30000, .hfmax = 70000, .vfmin = 60, .vfmax = 60, .dclkmin = 6000000, .dclkmax = 28000000, .input = FB_DISP_RGB, }, .mode_screen = 0x13f9df80, .mode_horztiming = 0x003c5859, .mode_verttiming = 0x00741201, .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ .mode_pwmdiv = 0x00000000, .mode_pwmhi = 0x00000000, .mode_outmask = 0x00FFFFFF, .mode_fifoctrl = 0x2f2f2f2f, .mode_backlight = 0x00000000, .lcdclk = 96, 640, 480, 640, 480, }, [2] = { /* SVGA 800x600 H:46.1kHz V:69Hz */ .name = "SVGA_800x600", .monspecs = { .modedb = NULL, .modedb_len = 0, .hfmin = 30000, .hfmax = 70000, .vfmin = 60, .vfmax = 60, .dclkmin = 6000000, .dclkmax = 28000000, .input = FB_DISP_RGB, }, .mode_screen = 0x18fa5780, .mode_horztiming = 0x00dc7e77, .mode_verttiming = 0x00584805, .mode_clkcontrol = 0x00020000, /* /2=48Mhz */ .mode_pwmdiv = 0x00000000, .mode_pwmhi = 0x00000000, .mode_outmask = 0x00FFFFFF, .mode_fifoctrl = 0x2f2f2f2f, .mode_backlight = 0x00000000, .lcdclk = 96, 800, 800, 600, 600, }, [3] = { /* XVGA 1024x768 H:56.2kHz V:70Hz */ .name = "XVGA_1024x768", .monspecs = { .modedb = NULL, .modedb_len = 0, .hfmin = 30000, .hfmax = 70000, .vfmin = 60, .vfmax = 60, .dclkmin = 6000000, .dclkmax = 28000000, .input = FB_DISP_RGB, }, .mode_screen = 0x1ffaff80, .mode_horztiming = 0x007d0e57, .mode_verttiming = 0x00740a01, .mode_clkcontrol = 0x000A0000, /* /1 */ .mode_pwmdiv = 0x00000000, .mode_pwmhi = 0x00000000, .mode_outmask = 0x00FFFFFF, .mode_fifoctrl = 0x2f2f2f2f, .mode_backlight = 0x00000000, .lcdclk = 72, 1024, 1024, 768, 768, }, [4] = { /* XVGA XVGA 1280x1024 H:68.5kHz V:65Hz */ .name = "XVGA_1280x1024", .monspecs = { .modedb = NULL, .modedb_len = 0, .hfmin = 30000, .hfmax = 70000, .vfmin = 60, .vfmax = 60, .dclkmin = 6000000, .dclkmax = 28000000, .input = FB_DISP_RGB, }, .mode_screen = 0x27fbff80, .mode_horztiming = 0x00cdb2c7, .mode_verttiming = 0x00600002, .mode_clkcontrol = 0x000A0000, /* /1 */ .mode_pwmdiv = 0x00000000, .mode_pwmhi = 0x00000000, .mode_outmask = 0x00FFFFFF, .mode_fifoctrl = 0x2f2f2f2f, .mode_backlight = 0x00000000, .lcdclk = 120, 1280, 1280, 1024, 1024, }, [5] = { /* Samsung 1024x768 TFT */ .name = "Samsung_1024x768_TFT", .monspecs = { .modedb = NULL, .modedb_len = 0, .hfmin = 30000, .hfmax = 70000, .vfmin = 60, .vfmax = 60, .dclkmin = 6000000, .dclkmax = 28000000, .input = FB_DISP_RGB, }, .mode_screen = 0x1ffaff80, .mode_horztiming = 0x018cc677, .mode_verttiming = 0x00241217, .mode_clkcontrol = 0x00000000, /* SCB 0x1 /4=24Mhz */ .mode_pwmdiv = 0x8000063f, /* SCB 0x0 */ .mode_pwmhi = 0x03400000, /* SCB 0x0 */ .mode_outmask = 0x00FFFFFF, .mode_fifoctrl = 0x2f2f2f2f, .mode_backlight = 0x00000000, .lcdclk = 96, 1024, 1024, 768, 768, }, [6] = { /* Toshiba 640x480 TFT */ .name = "Toshiba_640x480_TFT", .monspecs = { .modedb = NULL, .modedb_len = 0, .hfmin = 30000, .hfmax = 70000, .vfmin = 60, .vfmax = 60, .dclkmin = 6000000, .dclkmax = 28000000, .input = FB_DISP_RGB, }, .mode_screen = LCD_SCREEN_SX_N(640) | LCD_SCREEN_SY_N(480), .mode_horztiming = LCD_HORZTIMING_HPW_N(96) | LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(51), .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | LCD_VERTTIMING_VND1_N(11) | LCD_VERTTIMING_VND2_N(32), .mode_clkcontrol = 0x00000000, /* /4=24Mhz */ .mode_pwmdiv = 0x8000063f, .mode_pwmhi = 0x03400000, .mode_outmask = 0x00fcfcfc, .mode_fifoctrl = 0x2f2f2f2f, .mode_backlight = 0x00000000, .lcdclk = 96, 640, 480, 640, 480, }, [7] = { /* Sharp 320x240 TFT */ .name = "Sharp_320x240_TFT", .monspecs = { .modedb = NULL, .modedb_len = 0, .hfmin = 12500, .hfmax = 20000, .vfmin = 38, .vfmax = 81, .dclkmin = 4500000, .dclkmax = 6800000, .input = FB_DISP_RGB, }, .mode_screen = LCD_SCREEN_SX_N(320) | LCD_SCREEN_SY_N(240), .mode_horztiming = LCD_HORZTIMING_HPW_N(60) | LCD_HORZTIMING_HND1_N(13) | LCD_HORZTIMING_HND2_N(2), .mode_verttiming = LCD_VERTTIMING_VPW_N(2) | LCD_VERTTIMING_VND1_N(2) | LCD_VERTTIMING_VND2_N(5), .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(7), /*16=6Mhz*/ .mode_pwmdiv = 0x8000063f, .mode_pwmhi = 0x03400000, .mode_outmask = 0x00fcfcfc, .mode_fifoctrl = 0x2f2f2f2f, .mode_backlight = 0x00000000, .lcdclk = 96, /* 96MHz AUXPLL */ 320, 320, 240, 240, }, [8] = { /* Toppoly TD070WGCB2 7" 856x480 TFT */ .name = "Toppoly_TD070WGCB2", .monspecs = { .modedb = NULL, .modedb_len = 0, .hfmin = 30000, .hfmax = 70000, .vfmin = 60, .vfmax = 60, .dclkmin = 6000000, .dclkmax = 28000000, .input = FB_DISP_RGB, }, .mode_screen = LCD_SCREEN_SX_N(856) | LCD_SCREEN_SY_N(480), .mode_horztiming = LCD_HORZTIMING_HND2_N(43) | LCD_HORZTIMING_HND1_N(43) | LCD_HORZTIMING_HPW_N(114), .mode_verttiming = LCD_VERTTIMING_VND2_N(20) | LCD_VERTTIMING_VND1_N(21) | LCD_VERTTIMING_VPW_N(4), .mode_clkcontrol = 0x00020001, /* /4=24Mhz */ .mode_pwmdiv = 0x8000063f, .mode_pwmhi = 0x03400000, .mode_outmask = 0x00fcfcfc, .mode_fifoctrl = 0x2f2f2f2f, .mode_backlight = 0x00000000, .lcdclk = 96, 856, 856, 480, 480, }, [9] = { .name = "DB1300_800x480", .monspecs = { .modedb = NULL, .modedb_len = 0, .hfmin = 30000, .hfmax = 70000, .vfmin = 60, .vfmax = 60, .dclkmin = 6000000, .dclkmax = 28000000, .input = FB_DISP_RGB, }, .mode_screen = LCD_SCREEN_SX_N(800) | LCD_SCREEN_SY_N(480), .mode_horztiming = LCD_HORZTIMING_HPW_N(5) | LCD_HORZTIMING_HND1_N(16) | LCD_HORZTIMING_HND2_N(8), .mode_verttiming = LCD_VERTTIMING_VPW_N(4) | LCD_VERTTIMING_VND1_N(8) | LCD_VERTTIMING_VND2_N(5), .mode_clkcontrol = LCD_CLKCONTROL_PCD_N(1) | LCD_CLKCONTROL_IV | LCD_CLKCONTROL_IH, .mode_pwmdiv = 0x00000000, .mode_pwmhi = 0x00000000, .mode_outmask = 0x00FFFFFF, .mode_fifoctrl = 0x2f2f2f2f, .mode_backlight = 0x00000000, .lcdclk = 96, 800, 800, 480, 480, }, }; #define NUM_PANELS (ARRAY_SIZE(known_lcd_panels)) /********************************************************************/ static int winbpp (unsigned int winctrl1) { int bits = 0; /* how many bits are needed for each pixel format */ switch (winctrl1 & LCD_WINCTRL1_FRM) { case LCD_WINCTRL1_FRM_1BPP: bits = 1; break; case LCD_WINCTRL1_FRM_2BPP: bits = 2; break; case LCD_WINCTRL1_FRM_4BPP: bits = 4; break; case LCD_WINCTRL1_FRM_8BPP: bits = 8; break; case LCD_WINCTRL1_FRM_12BPP: case LCD_WINCTRL1_FRM_16BPP655: case LCD_WINCTRL1_FRM_16BPP565: case LCD_WINCTRL1_FRM_16BPP556: case LCD_WINCTRL1_FRM_16BPPI1555: case LCD_WINCTRL1_FRM_16BPPI5551: case LCD_WINCTRL1_FRM_16BPPA1555: case LCD_WINCTRL1_FRM_16BPPA5551: bits = 16; break; case LCD_WINCTRL1_FRM_24BPP: case LCD_WINCTRL1_FRM_32BPP: bits = 32; break; } return bits; } static int fbinfo2index (struct fb_info *fb_info) { int i; for (i = 0; i < device_count; ++i) { if (fb_info == _au1200fb_infos[i]) return i; } printk("au1200fb: ERROR: fbinfo2index failed!\n"); return -1; } static int au1200_setlocation (struct au1200fb_device *fbdev, int plane, int xpos, int ypos) { uint32 winctrl0, winctrl1, winenable, fb_offset = 0; int xsz, ysz; /* FIX!!! NOT CHECKING FOR COMPLETE OFFSCREEN YET */ winctrl0 = lcd->window[plane].winctrl0; winctrl1 = lcd->window[plane].winctrl1; winctrl0 &= (LCD_WINCTRL0_A | LCD_WINCTRL0_AEN); winctrl1 &= ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY); /* Check for off-screen adjustments */ xsz = win->w[plane].xres; ysz = win->w[plane].yres; if ((xpos + win->w[plane].xres) > panel->Xres) { /* Off-screen to the right */ xsz = panel->Xres - xpos; /* off by 1 ??? */ /*printk("off screen right\n");*/ } if ((ypos + win->w[plane].yres) > panel->Yres) { /* Off-screen to the bottom */ ysz = panel->Yres - ypos; /* off by 1 ??? */ /*printk("off screen bottom\n");*/ } if (xpos < 0) { /* Off-screen to the left */ xsz = win->w[plane].xres + xpos; fb_offset += (((0 - xpos) * winbpp(lcd->window[plane].winctrl1))/8); xpos = 0; /*printk("off screen left\n");*/ } if (ypos < 0) { /* Off-screen to the top */ ysz = win->w[plane].yres + ypos; /* fixme: fb_offset += ((0-ypos)*fb_pars[plane].line_length); */ ypos = 0; /*printk("off screen top\n");*/ } /* record settings */ win->w[plane].xpos = xpos; win->w[plane].ypos = ypos; xsz -= 1; ysz -= 1; winctrl0 |= (xpos << 21); winctrl0 |= (ypos << 10); winctrl1 |= (xsz << 11); winctrl1 |= (ysz << 0); /* Disable the window while making changes, then restore WINEN */ winenable = lcd->winenable & (1 << plane); wmb(); /* drain writebuffer */ lcd->winenable &= ~(1 << plane); lcd->window[plane].winctrl0 = winctrl0; lcd->window[plane].winctrl1 = winctrl1; lcd->window[plane].winbuf0 = lcd->window[plane].winbuf1 = fbdev->fb_phys; lcd->window[plane].winbufctrl = 0; /* select winbuf0 */ lcd->winenable |= winenable; wmb(); /* drain writebuffer */ return 0; } static void au1200_setpanel(struct panel_settings *newpanel, struct au1200fb_platdata *pd) { /* * Perform global setup/init of LCD controller */ uint32 winenable; /* Make sure all windows disabled */ winenable = lcd->winenable; lcd->winenable = 0; wmb(); /* drain writebuffer */ /* * Ensure everything is disabled before reconfiguring */ if (lcd->screen & LCD_SCREEN_SEN) { /* Wait for vertical sync period */ lcd->intstatus = LCD_INT_SS; while ((lcd->intstatus & LCD_INT_SS) == 0) ; lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/ do { lcd->intstatus = lcd->intstatus; /*clear interrupts*/ wmb(); /* drain writebuffer */ /*wait for controller to shut down*/ } while ((lcd->intstatus & LCD_INT_SD) == 0); /* Call shutdown of current panel (if up) */ /* this must occur last, because if an external clock is driving the controller, the clock cannot be turned off before first shutting down the controller. */ if (pd->panel_shutdown) pd->panel_shutdown(); } /* Newpanel == NULL indicates a shutdown operation only */ if (newpanel == NULL) return; panel = newpanel; printk("Panel(%s), %dx%d\n", panel->name, panel->Xres, panel->Yres); /* * Setup clocking if internal LCD clock source (assumes sys_auxpll valid) */ if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT)) { struct clk *c = clk_get(NULL, "lcd_intclk"); long r, pc = panel->lcdclk * 1000000; if (!IS_ERR(c)) { r = clk_round_rate(c, pc); if ((pc - r) < (pc / 10)) { /* 10% slack */ clk_set_rate(c, r); clk_prepare_enable(c); } clk_put(c); } } /* * Configure panel timings */ lcd->screen = panel->mode_screen; lcd->horztiming = panel->mode_horztiming; lcd->verttiming = panel->mode_verttiming; lcd->clkcontrol = panel->mode_clkcontrol; lcd->pwmdiv = panel->mode_pwmdiv; lcd->pwmhi = panel->mode_pwmhi; lcd->outmask = panel->mode_outmask; lcd->fifoctrl = panel->mode_fifoctrl; wmb(); /* drain writebuffer */ /* fixme: Check window settings to make sure still valid * for new geometry */ #if 0 au1200_setlocation(fbdev, 0, win->w[0].xpos, win->w[0].ypos); au1200_setlocation(fbdev, 1, win->w[1].xpos, win->w[1].ypos); au1200_setlocation(fbdev, 2, win->w[2].xpos, win->w[2].ypos); au1200_setlocation(fbdev, 3, win->w[3].xpos, win->w[3].ypos); #endif lcd->winenable = winenable; /* * Re-enable screen now that it is configured */ lcd->screen |= LCD_SCREEN_SEN; wmb(); /* drain writebuffer */ /* Call init of panel */ if (pd->panel_init) pd->panel_init(); /* FIX!!!! not appropriate on panel change!!! Global setup/init */ lcd->intenable = 0; lcd->intstatus = ~0; lcd->backcolor = win->mode_backcolor; /* Setup Color Key - FIX!!! */ lcd->colorkey = win->mode_colorkey; lcd->colorkeymsk = win->mode_colorkeymsk; /* Setup HWCursor - FIX!!! Need to support this eventually */ lcd->hwc.cursorctrl = 0; lcd->hwc.cursorpos = 0; lcd->hwc.cursorcolor0 = 0; lcd->hwc.cursorcolor1 = 0; lcd->hwc.cursorcolor2 = 0; lcd->hwc.cursorcolor3 = 0; #if 0 #define D(X) printk("%25s: %08X\n", #X, X) D(lcd->screen); D(lcd->horztiming); D(lcd->verttiming); D(lcd->clkcontrol); D(lcd->pwmdiv); D(lcd->pwmhi); D(lcd->outmask); D(lcd->fifoctrl); D(lcd->window[0].winctrl0); D(lcd->window[0].winctrl1); D(lcd->window[0].winctrl2); D(lcd->window[0].winbuf0); D(lcd->window[0].winbuf1); D(lcd->window[0].winbufctrl); D(lcd->window[1].winctrl0); D(lcd->window[1].winctrl1); D(lcd->window[1].winctrl2); D(lcd->window[1].winbuf0); D(lcd->window[1].winbuf1); D(lcd->window[1].winbufctrl); D(lcd->window[2].winctrl0); D(lcd->window[2].winctrl1); D(lcd->window[2].winctrl2); D(lcd->window[2].winbuf0); D(lcd->window[2].winbuf1); D(lcd->window[2].winbufctrl); D(lcd->window[3].winctrl0); D(lcd->window[3].winctrl1); D(lcd->window[3].winctrl2); D(lcd->window[3].winbuf0); D(lcd->window[3].winbuf1); D(lcd->window[3].winbufctrl); D(lcd->winenable); D(lcd->intenable); D(lcd->intstatus); D(lcd->backcolor); D(lcd->winenable); D(lcd->colorkey); D(lcd->colorkeymsk); D(lcd->hwc.cursorctrl); D(lcd->hwc.cursorpos); D(lcd->hwc.cursorcolor0); D(lcd->hwc.cursorcolor1); D(lcd->hwc.cursorcolor2); D(lcd->hwc.cursorcolor3); #endif } static void au1200_setmode(struct au1200fb_device *fbdev) { int plane = fbdev->plane; /* Window/plane setup */ lcd->window[plane].winctrl1 = ( 0 | LCD_WINCTRL1_PRI_N(plane) | win->w[plane].mode_winctrl1 /* FRM,CCO,PO,PIPE */ ) ; au1200_setlocation(fbdev, plane, win->w[plane].xpos, win->w[plane].ypos); lcd->window[plane].winctrl2 = ( 0 | LCD_WINCTRL2_CKMODE_00 | LCD_WINCTRL2_DBM | LCD_WINCTRL2_BX_N(fbdev->fb_info->fix.line_length) | LCD_WINCTRL2_SCX_1 | LCD_WINCTRL2_SCY_1 ) ; lcd->winenable |= win->w[plane].mode_winenable; wmb(); /* drain writebuffer */ } /* Inline helpers */ /*#define panel_is_dual(panel) ((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ /*#define panel_is_active(panel)((panel->mode_screen & LCD_SCREEN_PT) == LCD_SCREEN_PT_010)*/ #define panel_is_color(panel) ((panel->mode_screen & LCD_SCREEN_PT) <= LCD_SCREEN_PT_CDSTN) /* Bitfields format supported by the controller. */ static struct fb_bitfield rgb_bitfields[][4] = { /* Red, Green, Blue, Transp */ [LCD_WINCTRL1_FRM_16BPP655 >> 25] = { { 10, 6, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, [LCD_WINCTRL1_FRM_16BPP565 >> 25] = { { 11, 5, 0 }, { 5, 6, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, [LCD_WINCTRL1_FRM_16BPP556 >> 25] = { { 11, 5, 0 }, { 6, 5, 0 }, { 0, 6, 0 }, { 0, 0, 0 } }, [LCD_WINCTRL1_FRM_16BPPI1555 >> 25] = { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 0, 0, 0 } }, [LCD_WINCTRL1_FRM_16BPPI5551 >> 25] = { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 0, 0 } }, [LCD_WINCTRL1_FRM_16BPPA1555 >> 25] = { { 10, 5, 0 }, { 5, 5, 0 }, { 0, 5, 0 }, { 15, 1, 0 } }, [LCD_WINCTRL1_FRM_16BPPA5551 >> 25] = { { 11, 5, 0 }, { 6, 5, 0 }, { 1, 5, 0 }, { 0, 1, 0 } }, [LCD_WINCTRL1_FRM_24BPP >> 25] = { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 0, 0, 0 } }, [LCD_WINCTRL1_FRM_32BPP >> 25] = { { 16, 8, 0 }, { 8, 8, 0 }, { 0, 8, 0 }, { 24, 0, 0 } }, }; /*-------------------------------------------------------------------------*/ /* Helpers */ static void au1200fb_update_fbinfo(struct fb_info *fbi) { /* FIX!!!! This also needs to take the window pixel format into account!!! */ /* Update var-dependent FB info */ if (panel_is_color(panel)) { if (fbi->var.bits_per_pixel <= 8) { /* palettized */ fbi->fix.visual = FB_VISUAL_PSEUDOCOLOR; fbi->fix.line_length = fbi->var.xres_virtual / (8/fbi->var.bits_per_pixel); } else { /* non-palettized */ fbi->fix.visual = FB_VISUAL_TRUECOLOR; fbi->fix.line_length = fbi->var.xres_virtual * (fbi->var.bits_per_pixel / 8); } } else { /* mono FIX!!! mono 8 and 4 bits */ fbi->fix.visual = FB_VISUAL_MONO10; fbi->fix.line_length = fbi->var.xres_virtual / 8; } fbi->screen_size = fbi->fix.line_length * fbi->var.yres_virtual; print_dbg("line length: %d\n", fbi->fix.line_length); print_dbg("bits_per_pixel: %d\n", fbi->var.bits_per_pixel); } /*-------------------------------------------------------------------------*/ /* AU1200 framebuffer driver */ /* fb_check_var * Validate var settings with hardware restrictions and modify it if necessary */ static int au1200fb_fb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) { struct au1200fb_device *fbdev = fbi->par; u32 pixclock; int screen_size, plane; plane = fbdev->plane; /* Make sure that the mode respect all LCD controller and * panel restrictions. */ var->xres = win->w[plane].xres; var->yres = win->w[plane].yres; /* No need for virtual resolution support */ var->xres_virtual = var->xres; var->yres_virtual = var->yres; var->bits_per_pixel = winbpp(win->w[plane].mode_winctrl1); screen_size = var->xres_virtual * var->yres_virtual; if (var->bits_per_pixel > 8) screen_size *= (var->bits_per_pixel / 8); else screen_size /= (8/var->bits_per_pixel); if (fbdev->fb_len < screen_size) return -EINVAL; /* Virtual screen is to big, abort */ /* FIX!!!! what are the implicaitons of ignoring this for windows ??? */ /* The max LCD clock is fixed to 48MHz (value of AUX_CLK). The pixel * clock can only be obtain by dividing this value by an even integer. * Fallback to a slower pixel clock if necessary. */ pixclock = max((u32)(PICOS2KHZ(var->pixclock) * 1000), fbi->monspecs.dclkmin); pixclock = min3(pixclock, fbi->monspecs.dclkmax, (u32)AU1200_LCD_MAX_CLK/2); if (AU1200_LCD_MAX_CLK % pixclock) { int diff = AU1200_LCD_MAX_CLK % pixclock; pixclock -= diff; } var->pixclock = KHZ2PICOS(pixclock/1000); #if 0 if (!panel_is_active(panel)) { int pcd = AU1200_LCD_MAX_CLK / (pixclock * 2) - 1; if (!panel_is_color(panel) && (panel->control_base & LCD_CONTROL_MPI) && (pcd < 3)) { /* STN 8bit mono panel support is up to 6MHz pixclock */ var->pixclock = KHZ2PICOS(6000); } else if (!pcd) { /* Other STN panel support is up to 12MHz */ var->pixclock = KHZ2PICOS(12000); } } #endif /* Set bitfield accordingly */ switch (var->bits_per_pixel) { case 16: { /* 16bpp True color. * These must be set to MATCH WINCTRL[FORM] */ int idx; idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; var->red = rgb_bitfields[idx][0]; var->green = rgb_bitfields[idx][1]; var->blue = rgb_bitfields[idx][2]; var->transp = rgb_bitfields[idx][3]; break; } case 32: { /* 32bpp True color. * These must be set to MATCH WINCTRL[FORM] */ int idx; idx = (win->w[0].mode_winctrl1 & LCD_WINCTRL1_FRM) >> 25; var->red = rgb_bitfields[idx][0]; var->green = rgb_bitfields[idx][1]; var->blue = rgb_bitfields[idx][2]; var->transp = rgb_bitfields[idx][3]; break; } default: print_dbg("Unsupported depth %dbpp", var->bits_per_pixel); return -EINVAL; } return 0; } /* fb_set_par * Set hardware with var settings. This will enable the controller with a * specific mode, normally validated with the fb_check_var method */ static int au1200fb_fb_set_par(struct fb_info *fbi) { struct au1200fb_device *fbdev = fbi->par; au1200fb_update_fbinfo(fbi); au1200_setmode(fbdev); return 0; } /* fb_setcolreg * Set color in LCD palette. */ static int au1200fb_fb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *fbi) { volatile u32 *palette = lcd->palette; u32 value; if (regno > (AU1200_LCD_NBR_PALETTE_ENTRIES - 1)) return -EINVAL; if (fbi->var.grayscale) { /* Convert color to grayscale */ red = green = blue = (19595 * red + 38470 * green + 7471 * blue) >> 16; } if (fbi->fix.visual == FB_VISUAL_TRUECOLOR) { /* Place color in the pseudopalette */ if (regno > 16) return -EINVAL; palette = (u32*) fbi->pseudo_palette; red >>= (16 - fbi->var.red.length); green >>= (16 - fbi->var.green.length); blue >>= (16 - fbi->var.blue.length); value = (red << fbi->var.red.offset) | (green << fbi->var.green.offset)| (blue << fbi->var.blue.offset); value &= 0xFFFF; } else if (1 /*FIX!!! panel_is_active(fbdev->panel)*/) { /* COLOR TFT PALLETTIZED (use RGB 565) */ value = (red & 0xF800)|((green >> 5) & 0x07E0)|((blue >> 11) & 0x001F); value &= 0xFFFF; } else if (0 /*panel_is_color(fbdev->panel)*/) { /* COLOR STN MODE */ value = 0x1234; value &= 0xFFF; } else { /* MONOCHROME MODE */ value = (green >> 12) & 0x000F; value &= 0xF; } palette[regno] = value; return 0; } /* fb_blank * Blank the screen. Depending on the mode, the screen will be * activated with the backlight color, or desactivated */ static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi) { struct au1200fb_device *fbdev = fbi->par; /* Short-circuit screen blanking */ if (noblanking) return 0; switch (blank_mode) { case FB_BLANK_UNBLANK: case FB_BLANK_NORMAL: /* printk("turn on panel\n"); */ au1200_setpanel(panel, fbdev->pd); break; case FB_BLANK_VSYNC_SUSPEND: case FB_BLANK_HSYNC_SUSPEND: case FB_BLANK_POWERDOWN: /* printk("turn off panel\n"); */ au1200_setpanel(NULL, fbdev->pd); break; default: break; } /* FB_BLANK_NORMAL is a soft blank */ return (blank_mode == FB_BLANK_NORMAL) ? -EINVAL : 0; } /* fb_mmap * Map video memory in user space. We don't use the generic fb_mmap * method mainly to allow the use of the TLB streaming flag (CCA=6) */ static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) { struct au1200fb_device *fbdev = info->par; vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */ return vm_iomap_memory(vma, fbdev->fb_phys, fbdev->fb_len); } static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) { unsigned int hi1, divider; /* SCREEN_SIZE: user cannot reset size, must switch panel choice */ if (pdata->flags & SCREEN_BACKCOLOR) lcd->backcolor = pdata->backcolor; if (pdata->flags & SCREEN_BRIGHTNESS) { // limit brightness pwm duty to >= 30/1600 if (pdata->brightness < 30) { pdata->brightness = 30; } divider = (lcd->pwmdiv & 0x3FFFF) + 1; hi1 = (((pdata->brightness & 0xFF)+1) * divider >> 8); lcd->pwmhi &= 0xFFFF; lcd->pwmhi |= (hi1 << 16); } if (pdata->flags & SCREEN_COLORKEY) lcd->colorkey = pdata->colorkey; if (pdata->flags & SCREEN_MASK) lcd->colorkeymsk = pdata->mask; wmb(); /* drain writebuffer */ } static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) { unsigned int hi1, divider; pdata->xsize = ((lcd->screen & LCD_SCREEN_SX) >> 19) + 1; pdata->ysize = ((lcd->screen & LCD_SCREEN_SY) >> 8) + 1; pdata->backcolor = lcd->backcolor; pdata->colorkey = lcd->colorkey; pdata->mask = lcd->colorkeymsk; // brightness hi1 = (lcd->pwmhi >> 16) + 1; divider = (lcd->pwmdiv & 0x3FFFF) + 1; pdata->brightness = ((hi1 << 8) / divider) - 1; wmb(); /* drain writebuffer */ } static void set_window(unsigned int plane, struct au1200_lcd_window_regs_t *pdata) { unsigned int val, bpp; /* Window control register 0 */ if (pdata->flags & WIN_POSITION) { val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_OX | LCD_WINCTRL0_OY); val |= ((pdata->xpos << 21) & LCD_WINCTRL0_OX); val |= ((pdata->ypos << 10) & LCD_WINCTRL0_OY); lcd->window[plane].winctrl0 = val; } if (pdata->flags & WIN_ALPHA_COLOR) { val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_A); val |= ((pdata->alpha_color << 2) & LCD_WINCTRL0_A); lcd->window[plane].winctrl0 = val; } if (pdata->flags & WIN_ALPHA_MODE) { val = lcd->window[plane].winctrl0 & ~(LCD_WINCTRL0_AEN); val |= ((pdata->alpha_mode << 1) & LCD_WINCTRL0_AEN); lcd->window[plane].winctrl0 = val; } /* Window control register 1 */ if (pdata->flags & WIN_PRIORITY) { val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PRI); val |= ((pdata->priority << 30) & LCD_WINCTRL1_PRI); lcd->window[plane].winctrl1 = val; } if (pdata->flags & WIN_CHANNEL) { val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PIPE); val |= ((pdata->channel << 29) & LCD_WINCTRL1_PIPE); lcd->window[plane].winctrl1 = val; } if (pdata->flags & WIN_BUFFER_FORMAT) { val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_FRM); val |= ((pdata->buffer_format << 25) & LCD_WINCTRL1_FRM); lcd->window[plane].winctrl1 = val; } if (pdata->flags & WIN_COLOR_ORDER) { val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_CCO); val |= ((pdata->color_order << 24) & LCD_WINCTRL1_CCO); lcd->window[plane].winctrl1 = val; } if (pdata->flags & WIN_PIXEL_ORDER) { val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_PO); val |= ((pdata->pixel_order << 22) & LCD_WINCTRL1_PO); lcd->window[plane].winctrl1 = val; } if (pdata->flags & WIN_SIZE) { val = lcd->window[plane].winctrl1 & ~(LCD_WINCTRL1_SZX | LCD_WINCTRL1_SZY); val |= (((pdata->xsize << 11) - 1) & LCD_WINCTRL1_SZX); val |= (((pdata->ysize) - 1) & LCD_WINCTRL1_SZY); lcd->window[plane].winctrl1 = val; /* program buffer line width */ bpp = winbpp(val) / 8; val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_BX); val |= (((pdata->xsize * bpp) << 8) & LCD_WINCTRL2_BX); lcd->window[plane].winctrl2 = val; } /* Window control register 2 */ if (pdata->flags & WIN_COLORKEY_MODE) { val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_CKMODE); val |= ((pdata->colorkey_mode << 24) & LCD_WINCTRL2_CKMODE); lcd->window[plane].winctrl2 = val; } if (pdata->flags & WIN_DOUBLE_BUFFER_MODE) { val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_DBM); val |= ((pdata->double_buffer_mode << 23) & LCD_WINCTRL2_DBM); lcd->window[plane].winctrl2 = val; } if (pdata->flags & WIN_RAM_ARRAY_MODE) { val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_RAM); val |= ((pdata->ram_array_mode << 21) & LCD_WINCTRL2_RAM); lcd->window[plane].winctrl2 = val; } /* Buffer line width programmed with WIN_SIZE */ if (pdata->flags & WIN_BUFFER_SCALE) { val = lcd->window[plane].winctrl2 & ~(LCD_WINCTRL2_SCX | LCD_WINCTRL2_SCY); val |= ((pdata->xsize << 11) & LCD_WINCTRL2_SCX); val |= ((pdata->ysize) & LCD_WINCTRL2_SCY); lcd->window[plane].winctrl2 = val; } if (pdata->flags & WIN_ENABLE) { val = lcd->winenable; val &= ~(1<<plane); val |= (pdata->enable & 1) << plane; lcd->winenable = val; } wmb(); /* drain writebuffer */ } static void get_window(unsigned int plane, struct au1200_lcd_window_regs_t *pdata) { /* Window control register 0 */ pdata->xpos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OX) >> 21; pdata->ypos = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_OY) >> 10; pdata->alpha_color = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_A) >> 2; pdata->alpha_mode = (lcd->window[plane].winctrl0 & LCD_WINCTRL0_AEN) >> 1; /* Window control register 1 */ pdata->priority = (lcd->window[plane].winctrl1& LCD_WINCTRL1_PRI) >> 30; pdata->channel = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PIPE) >> 29; pdata->buffer_format = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_FRM) >> 25; pdata->color_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_CCO) >> 24; pdata->pixel_order = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_PO) >> 22; pdata->xsize = ((lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZX) >> 11) + 1; pdata->ysize = (lcd->window[plane].winctrl1 & LCD_WINCTRL1_SZY) + 1; /* Window control register 2 */ pdata->colorkey_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_CKMODE) >> 24; pdata->double_buffer_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_DBM) >> 23; pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21; pdata->enable = (lcd->winenable >> plane) & 1; wmb(); /* drain writebuffer */ } static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) { struct au1200fb_device *fbdev = info->par; int plane; int val; plane = fbinfo2index(info); print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane); if (cmd == AU1200_LCD_FB_IOCTL) { struct au1200_lcd_iodata_t iodata; if (copy_from_user(&iodata, (void __user *) arg, sizeof(iodata))) return -EFAULT; print_dbg("FB IOCTL called\n"); switch (iodata.subcmd) { case AU1200_LCD_SET_SCREEN: print_dbg("AU1200_LCD_SET_SCREEN\n"); set_global(cmd, &iodata.global); break; case AU1200_LCD_GET_SCREEN: print_dbg("AU1200_LCD_GET_SCREEN\n"); get_global(cmd, &iodata.global); break; case AU1200_LCD_SET_WINDOW: print_dbg("AU1200_LCD_SET_WINDOW\n"); set_window(plane, &iodata.window); break; case AU1200_LCD_GET_WINDOW: print_dbg("AU1200_LCD_GET_WINDOW\n"); get_window(plane, &iodata.window); break; case AU1200_LCD_SET_PANEL: print_dbg("AU1200_LCD_SET_PANEL\n"); if ((iodata.global.panel_choice >= 0) && (iodata.global.panel_choice < NUM_PANELS)) { struct panel_settings *newpanel; panel_index = iodata.global.panel_choice; newpanel = &known_lcd_panels[panel_index]; au1200_setpanel(newpanel, fbdev->pd); } break; case AU1200_LCD_GET_PANEL: print_dbg("AU1200_LCD_GET_PANEL\n"); iodata.global.panel_choice = panel_index; break; default: return -EINVAL; } val = copy_to_user((void __user *) arg, &iodata, sizeof(iodata)); if (val) { print_dbg("error: could not copy %d bytes\n", val); return -EFAULT; } } return 0; } static struct fb_ops au1200fb_fb_ops = { .owner = THIS_MODULE, .fb_check_var = au1200fb_fb_check_var, .fb_set_par = au1200fb_fb_set_par, .fb_setcolreg = au1200fb_fb_setcolreg, .fb_blank = au1200fb_fb_blank, .fb_fillrect = sys_fillrect, .fb_copyarea = sys_copyarea, .fb_imageblit = sys_imageblit, .fb_read = fb_sys_read, .fb_write = fb_sys_write, .fb_sync = NULL, .fb_ioctl = au1200fb_ioctl, .fb_mmap = au1200fb_fb_mmap, }; /*-------------------------------------------------------------------------*/ static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id) { /* Nothing to do for now, just clear any pending interrupt */ lcd->intstatus = lcd->intstatus; wmb(); /* drain writebuffer */ return IRQ_HANDLED; } /*-------------------------------------------------------------------------*/ /* AU1200 LCD device probe helpers */ static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev) { struct fb_info *fbi = fbdev->fb_info; int bpp, ret; fbi->fbops = &au1200fb_fb_ops; bpp = winbpp(win->w[fbdev->plane].mode_winctrl1); /* Copy monitor specs from panel data */ /* fixme: we're setting up LCD controller windows, so these dont give a damn as to what the monitor specs are (the panel itself does, but that isn't done here...so maybe need a generic catchall monitor setting??? */ memcpy(&fbi->monspecs, &panel->monspecs, sizeof(struct fb_monspecs)); /* We first try the user mode passed in argument. If that failed, * or if no one has been specified, we default to the first mode of the * panel list. Note that after this call, var data will be set */ if (!fb_find_mode(&fbi->var, fbi, NULL, /* drv_info.opt_mode, */ fbi->monspecs.modedb, fbi->monspecs.modedb_len, fbi->monspecs.modedb, bpp)) { print_err("Cannot find valid mode for panel %s", panel->name); return -EFAULT; } fbi->pseudo_palette = kcalloc(16, sizeof(u32), GFP_KERNEL); if (!fbi->pseudo_palette) return -ENOMEM; ret = fb_alloc_cmap(&fbi->cmap, AU1200_LCD_NBR_PALETTE_ENTRIES, 0); if (ret < 0) { print_err("Fail to allocate colormap (%d entries)", AU1200_LCD_NBR_PALETTE_ENTRIES); return ret; } strncpy(fbi->fix.id, "AU1200", sizeof(fbi->fix.id)); fbi->fix.smem_start = fbdev->fb_phys; fbi->fix.smem_len = fbdev->fb_len; fbi->fix.type = FB_TYPE_PACKED_PIXELS; fbi->fix.xpanstep = 0; fbi->fix.ypanstep = 0; fbi->fix.mmio_start = 0; fbi->fix.mmio_len = 0; fbi->fix.accel = FB_ACCEL_NONE; fbi->screen_base = (char __iomem *) fbdev->fb_mem; au1200fb_update_fbinfo(fbi); return 0; } /*-------------------------------------------------------------------------*/ static int au1200fb_setup(struct au1200fb_platdata *pd) { char *options = NULL; char *this_opt, *endptr; int num_panels = ARRAY_SIZE(known_lcd_panels); int panel_idx = -1; fb_get_options(DRIVER_NAME, &options); if (!options) goto out; while ((this_opt = strsep(&options, ",")) != NULL) { /* Panel option - can be panel name, * "bs" for board-switch, or number/index */ if (!strncmp(this_opt, "panel:", 6)) { int i; long int li; char *endptr; this_opt += 6; /* First check for index, which allows * to short circuit this mess */ li = simple_strtol(this_opt, &endptr, 0); if (*endptr == '\0') panel_idx = (int)li; else if (strcmp(this_opt, "bs") == 0) panel_idx = pd->panel_index(); else { for (i = 0; i < num_panels; i++) { if (!strcmp(this_opt, known_lcd_panels[i].name)) { panel_idx = i; break; } } } if ((panel_idx < 0) || (panel_idx >= num_panels)) print_warn("Panel %s not supported!", this_opt); else panel_index = panel_idx; } else if (strncmp(this_opt, "nohwcursor", 10) == 0) nohwcursor = 1; else if (strncmp(this_opt, "devices:", 8) == 0) { this_opt += 8; device_count = simple_strtol(this_opt, &endptr, 0); if ((device_count < 0) || (device_count > MAX_DEVICE_COUNT)) device_count = MAX_DEVICE_COUNT; } else if (strncmp(this_opt, "wincfg:", 7) == 0) { this_opt += 7; window_index = simple_strtol(this_opt, &endptr, 0); if ((window_index < 0) || (window_index >= ARRAY_SIZE(windows))) window_index = DEFAULT_WINDOW_INDEX; } else if (strncmp(this_opt, "off", 3) == 0) return 1; else print_warn("Unsupported option \"%s\"", this_opt); } out: return 0; } /* AU1200 LCD controller device driver */ static int au1200fb_drv_probe(struct platform_device *dev) { struct au1200fb_device *fbdev; struct au1200fb_platdata *pd; struct fb_info *fbi = NULL; unsigned long page; int bpp, plane, ret, irq; print_info("" DRIVER_DESC ""); pd = dev->dev.platform_data; if (!pd) return -ENODEV; /* Setup driver with options */ if (au1200fb_setup(pd)) return -ENODEV; /* Point to the panel selected */ panel = &known_lcd_panels[panel_index]; win = &windows[window_index]; printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name); printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name); for (plane = 0; plane < device_count; ++plane) { bpp = winbpp(win->w[plane].mode_winctrl1); if (win->w[plane].xres == 0) win->w[plane].xres = panel->Xres; if (win->w[plane].yres == 0) win->w[plane].yres = panel->Yres; fbi = framebuffer_alloc(sizeof(struct au1200fb_device), &dev->dev); if (!fbi) { ret = -ENOMEM; goto failed; } _au1200fb_infos[plane] = fbi; fbdev = fbi->par; fbdev->fb_info = fbi; fbdev->pd = pd; fbdev->plane = plane; /* Allocate the framebuffer to the maximum screen size */ fbdev->fb_len = (win->w[plane].xres * win->w[plane].yres * bpp) / 8; fbdev->fb_mem = dmam_alloc_attrs(&dev->dev, PAGE_ALIGN(fbdev->fb_len), &fbdev->fb_phys, GFP_KERNEL, DMA_ATTR_NON_CONSISTENT); if (!fbdev->fb_mem) { print_err("fail to allocate framebuffer (size: %dK))", fbdev->fb_len / 1024); ret = -ENOMEM; goto failed; } /* * Set page reserved so that mmap will work. This is necessary * since we'll be remapping normal memory. */ for (page = (unsigned long)fbdev->fb_phys; page < PAGE_ALIGN((unsigned long)fbdev->fb_phys + fbdev->fb_len); page += PAGE_SIZE) { SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */ } print_dbg("Framebuffer memory map at %p", fbdev->fb_mem); print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024); /* Init FB data */ ret = au1200fb_init_fbinfo(fbdev); if (ret < 0) goto failed; /* Register new framebuffer */ ret = register_framebuffer(fbi); if (ret < 0) { print_err("cannot register new framebuffer"); goto failed; } au1200fb_fb_set_par(fbi); #if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO) if (plane == 0) if (fb_prepare_logo(fbi, FB_ROTATE_UR)) { /* Start display and show logo on boot */ fb_set_cmap(&fbi->cmap, fbi); fb_show_logo(fbi, FB_ROTATE_UR); } #endif } /* Now hook interrupt too */ irq = platform_get_irq(dev, 0); ret = request_irq(irq, au1200fb_handle_irq, IRQF_SHARED, "lcd", (void *)dev); if (ret) { print_err("fail to request interrupt line %d (err: %d)", irq, ret); goto failed; } platform_set_drvdata(dev, pd); /* Kickstart the panel */ au1200_setpanel(panel, pd); return 0; failed: for (plane = 0; plane < device_count; ++plane) { fbi = _au1200fb_infos[plane]; if (!fbi) break; /* Clean up all probe data */ unregister_framebuffer(fbi); if (fbi->cmap.len != 0) fb_dealloc_cmap(&fbi->cmap); kfree(fbi->pseudo_palette); framebuffer_release(fbi); _au1200fb_infos[plane] = NULL; } return ret; } static int au1200fb_drv_remove(struct platform_device *dev) { struct au1200fb_platdata *pd = platform_get_drvdata(dev); struct fb_info *fbi; int plane; /* Turn off the panel */ au1200_setpanel(NULL, pd); for (plane = 0; plane < device_count; ++plane) { fbi = _au1200fb_infos[plane]; /* Clean up all probe data */ unregister_framebuffer(fbi); if (fbi->cmap.len != 0) fb_dealloc_cmap(&fbi->cmap); kfree(fbi->pseudo_palette); framebuffer_release(fbi); _au1200fb_infos[plane] = NULL; } free_irq(platform_get_irq(dev, 0), (void *)dev); return 0; } #ifdef CONFIG_PM static int au1200fb_drv_suspend(struct device *dev) { struct au1200fb_platdata *pd = dev_get_drvdata(dev); au1200_setpanel(NULL, pd); lcd->outmask = 0; wmb(); /* drain writebuffer */ return 0; } static int au1200fb_drv_resume(struct device *dev) { struct au1200fb_platdata *pd = dev_get_drvdata(dev); struct fb_info *fbi; int i; /* Kickstart the panel */ au1200_setpanel(panel, pd); for (i = 0; i < device_count; i++) { fbi = _au1200fb_infos[i]; au1200fb_fb_set_par(fbi); } return 0; } static const struct dev_pm_ops au1200fb_pmops = { .suspend = au1200fb_drv_suspend, .resume = au1200fb_drv_resume, .freeze = au1200fb_drv_suspend, .thaw = au1200fb_drv_resume, }; #define AU1200FB_PMOPS (&au1200fb_pmops) #else #define AU1200FB_PMOPS NULL #endif /* CONFIG_PM */ static struct platform_driver au1200fb_driver = { .driver = { .name = "au1200-lcd", .pm = AU1200FB_PMOPS, }, .probe = au1200fb_drv_probe, .remove = au1200fb_drv_remove, }; module_platform_driver(au1200fb_driver); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL");
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