diff options
Diffstat (limited to 'drivers/video/atafb.c')
| -rw-r--r-- | drivers/video/atafb.c | 2801 |
1 files changed, 1487 insertions, 1314 deletions
diff --git a/drivers/video/atafb.c b/drivers/video/atafb.c index bffe2b9..0038a05 100644 --- a/drivers/video/atafb.c +++ b/drivers/video/atafb.c @@ -2,7 +2,7 @@ * linux/drivers/video/atafb.c -- Atari builtin chipset frame buffer device * * Copyright (C) 1994 Martin Schaller & Roman Hodek - * + * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive * for more details. @@ -70,14 +70,8 @@ #include <linux/fb.h> #include <asm/atarikb.h> -#include <video/fbcon.h> -#include <video/fbcon-cfb8.h> -#include <video/fbcon-cfb16.h> -#include <video/fbcon-iplan2p2.h> -#include <video/fbcon-iplan2p4.h> -#include <video/fbcon-iplan2p8.h> -#include <video/fbcon-mfb.h> - +#include "c2p.h" +#include "atafb.h" #define SWITCH_ACIA 0x01 /* modes for switch on OverScan */ #define SWITCH_SND6 0x40 @@ -87,22 +81,48 @@ #define up(x, r) (((x) + (r) - 1) & ~((r)-1)) + /* + * Interface to the world + */ + +static int atafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info); +static int atafb_set_par(struct fb_info *info); +static int atafb_setcolreg(unsigned int regno, unsigned int red, unsigned int green, + unsigned int blue, unsigned int transp, + struct fb_info *info); +static int atafb_blank(int blank, struct fb_info *info); +static int atafb_pan_display(struct fb_var_screeninfo *var, + struct fb_info *info); +static void atafb_fillrect(struct fb_info *info, + const struct fb_fillrect *rect); +static void atafb_copyarea(struct fb_info *info, + const struct fb_copyarea *region); +static void atafb_imageblit(struct fb_info *info, const struct fb_image *image); +static int atafb_ioctl(struct fb_info *info, unsigned int cmd, + unsigned long arg); + -static int default_par=0; /* default resolution (0=none) */ +static int default_par; /* default resolution (0=none) */ -static unsigned long default_mem_req=0; +static unsigned long default_mem_req; -static int hwscroll=-1; +static int hwscroll = -1; static int use_hwscroll = 1; -static int sttt_xres=640,st_yres=400,tt_yres=480; -static int sttt_xres_virtual=640,sttt_yres_virtual=400; -static int ovsc_offset=0, ovsc_addlen=0; +static int sttt_xres = 640, st_yres = 400, tt_yres = 480; +static int sttt_xres_virtual = 640, sttt_yres_virtual = 400; +static int ovsc_offset, ovsc_addlen; + + /* + * Hardware parameters for current mode + */ static struct atafb_par { void *screen_base; int yres_virtual; + u_long next_line; + u_long next_plane; #if defined ATAFB_TT || defined ATAFB_STE union { struct { @@ -138,7 +158,7 @@ static struct atafb_par { /* Don't calculate an own resolution, and thus don't change the one found when * booting (currently used for the Falcon to keep settings for internal video * hardware extensions (e.g. ScreenBlaster) */ -static int DontCalcRes = 0; +static int DontCalcRes = 0; #ifdef ATAFB_FALCON #define HHT hw.falcon.hht @@ -163,83 +183,84 @@ static int DontCalcRes = 0; #define VMO_PREMASK 0x0c #endif -static struct fb_info fb_info; +static struct fb_info fb_info = { + .fix = { + .id = "Atari ", + .visual = FB_VISUAL_PSEUDOCOLOR, + .accel = FB_ACCEL_NONE, + } +}; static void *screen_base; /* base address of screen */ static void *real_screen_base; /* (only for Overscan) */ static int screen_len; -static int current_par_valid=0; +static int current_par_valid; -static int mono_moni=0; - -static struct display disp; +static int mono_moni; #ifdef ATAFB_EXT -/* external video handling */ -static unsigned external_xres; -static unsigned external_xres_virtual; -static unsigned external_yres; -/* not needed - atafb will never support panning/hardwarescroll with external - * static unsigned external_yres_virtual; -*/ +/* external video handling */ +static unsigned int external_xres; +static unsigned int external_xres_virtual; +static unsigned int external_yres; -static unsigned external_depth; -static int external_pmode; -static void *external_addr = 0; -static unsigned long external_len; -static unsigned long external_vgaiobase = 0; -static unsigned int external_bitspercol = 6; - -/* -JOE <joe@amber.dinoco.de>: -added card type for external driver, is only needed for -colormap handling. -*/ +/* + * not needed - atafb will never support panning/hardwarescroll with external + * static unsigned int external_yres_virtual; + */ +static unsigned int external_depth; +static int external_pmode; +static void *external_addr; +static unsigned long external_len; +static unsigned long external_vgaiobase; +static unsigned int external_bitspercol = 6; +/* + * JOE <joe@amber.dinoco.de>: + * added card type for external driver, is only needed for + * colormap handling. + */ enum cardtype { IS_VGA, IS_MV300 }; static enum cardtype external_card_type = IS_VGA; /* -The MV300 mixes the color registers. So we need an array of munged -indices in order to access the correct reg. -*/ -static int MV300_reg_1bit[2]={0,1}; -static int MV300_reg_4bit[16]={ -0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15 }; -static int MV300_reg_8bit[256]={ -0, 128, 64, 192, 32, 160, 96, 224, 16, 144, 80, 208, 48, 176, 112, 240, -8, 136, 72, 200, 40, 168, 104, 232, 24, 152, 88, 216, 56, 184, 120, 248, -4, 132, 68, 196, 36, 164, 100, 228, 20, 148, 84, 212, 52, 180, 116, 244, -12, 140, 76, 204, 44, 172, 108, 236, 28, 156, 92, 220, 60, 188, 124, 252, -2, 130, 66, 194, 34, 162, 98, 226, 18, 146, 82, 210, 50, 178, 114, 242, -10, 138, 74, 202, 42, 170, 106, 234, 26, 154, 90, 218, 58, 186, 122, 250, -6, 134, 70, 198, 38, 166, 102, 230, 22, 150, 86, 214, 54, 182, 118, 246, -14, 142, 78, 206, 46, 174, 110, 238, 30, 158, 94, 222, 62, 190, 126, 254, -1, 129, 65, 193, 33, 161, 97, 225, 17, 145, 81, 209, 49, 177, 113, 241, -9, 137, 73, 201, 41, 169, 105, 233, 25, 153, 89, 217, 57, 185, 121, 249, -5, 133, 69, 197, 37, 165, 101, 229, 21, 149, 85, 213, 53, 181, 117, 245, -13, 141, 77, 205, 45, 173, 109, 237, 29, 157, 93, 221, 61, 189, 125, 253, -3, 131, 67, 195, 35, 163, 99, 227, 19, 147, 83, 211, 51, 179, 115, 243, -11, 139, 75, 203, 43, 171, 107, 235, 27, 155, 91, 219, 59, 187, 123, 251, -7, 135, 71, 199, 39, 167, 103, 231, 23, 151, 87, 215, 55, 183, 119, 247, -15, 143, 79, 207, 47, 175, 111, 239, 31, 159, 95, 223, 63, 191, 127, 255 }; + * The MV300 mixes the color registers. So we need an array of munged + * indices in order to access the correct reg. + */ +static int MV300_reg_1bit[2] = { + 0, 1 +}; +static int MV300_reg_4bit[16] = { + 0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15 +}; +static int MV300_reg_8bit[256] = { + 0, 128, 64, 192, 32, 160, 96, 224, 16, 144, 80, 208, 48, 176, 112, 240, + 8, 136, 72, 200, 40, 168, 104, 232, 24, 152, 88, 216, 56, 184, 120, 248, + 4, 132, 68, 196, 36, 164, 100, 228, 20, 148, 84, 212, 52, 180, 116, 244, + 12, 140, 76, 204, 44, 172, 108, 236, 28, 156, 92, 220, 60, 188, 124, 252, + 2, 130, 66, 194, 34, 162, 98, 226, 18, 146, 82, 210, 50, 178, 114, 242, + 10, 138, 74, 202, 42, 170, 106, 234, 26, 154, 90, 218, 58, 186, 122, 250, + 6, 134, 70, 198, 38, 166, 102, 230, 22, 150, 86, 214, 54, 182, 118, 246, + 14, 142, 78, 206, 46, 174, 110, 238, 30, 158, 94, 222, 62, 190, 126, 254, + 1, 129, 65, 193, 33, 161, 97, 225, 17, 145, 81, 209, 49, 177, 113, 241, + 9, 137, 73, 201, 41, 169, 105, 233, 25, 153, 89, 217, 57, 185, 121, 249, + 5, 133, 69, 197, 37, 165, 101, 229, 21, 149, 85, 213, 53, 181, 117, 245, + 13, 141, 77, 205, 45, 173, 109, 237, 29, 157, 93, 221, 61, 189, 125, 253, + 3, 131, 67, 195, 35, 163, 99, 227, 19, 147, 83, 211, 51, 179, 115, 243, + 11, 139, 75, 203, 43, 171, 107, 235, 27, 155, 91, 219, 59, 187, 123, 251, + 7, 135, 71, 199, 39, 167, 103, 231, 23, 151, 87, 215, 55, 183, 119, 247, + 15, 143, 79, 207, 47, 175, 111, 239, 31, 159, 95, 223, 63, 191, 127, 255 +}; static int *MV300_reg = MV300_reg_8bit; - -/* -And on the MV300 it's difficult to read out the hardware palette. So we -just keep track of the set colors in our own array here, and use that! -*/ - -static struct { unsigned char red,green,blue,pad; } ext_color[256]; #endif /* ATAFB_EXT */ -static int inverse=0; +static int inverse; extern int fontheight_8x8; extern int fontwidth_8x8; @@ -249,96 +270,154 @@ extern int fontheight_8x16; extern int fontwidth_8x16; extern unsigned char fontdata_8x16[]; +/* + * struct fb_ops { + * * open/release and usage marking + * struct module *owner; + * int (*fb_open)(struct fb_info *info, int user); + * int (*fb_release)(struct fb_info *info, int user); + * + * * For framebuffers with strange non linear layouts or that do not + * * work with normal memory mapped access + * ssize_t (*fb_read)(struct file *file, char __user *buf, size_t count, loff_t *ppos); + * ssize_t (*fb_write)(struct file *file, const char __user *buf, size_t count, loff_t *ppos); + * + * * checks var and eventually tweaks it to something supported, + * * DOES NOT MODIFY PAR * + * int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info); + * + * * set the video mode according to info->var * + * int (*fb_set_par)(struct fb_info *info); + * + * * set color register * + * int (*fb_setcolreg)(unsigned int regno, unsigned int red, unsigned int green, + * unsigned int blue, unsigned int transp, struct fb_info *info); + * + * * set color registers in batch * + * int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info); + * + * * blank display * + * int (*fb_blank)(int blank, struct fb_info *info); + * + * * pan display * + * int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info); + * + * *** The meat of the drawing engine *** + * * Draws a rectangle * + * void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect); + * * Copy data from area to another * + * void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region); + * * Draws a image to the display * + * void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image); + * + * * Draws cursor * + * int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor); + * + * * Rotates the display * + * void (*fb_rotate)(struct fb_info *info, int angle); + * + * * wait for blit idle, optional * + * int (*fb_sync)(struct fb_info *info); + * + * * perform fb specific ioctl (optional) * + * int (*fb_ioctl)(struct fb_info *info, unsigned int cmd, + * unsigned long arg); + * + * * Handle 32bit compat ioctl (optional) * + * int (*fb_compat_ioctl)(struct fb_info *info, unsigned int cmd, + * unsigned long arg); + * + * * perform fb specific mmap * + * int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma); + * + * * save current hardware state * + * void (*fb_save_state)(struct fb_info *info); + * + * * restore saved state * + * void (*fb_restore_state)(struct fb_info *info); + * } ; + */ + + /* ++roman: This structure abstracts from the underlying hardware (ST(e), * TT, or Falcon. * - * int (*detect)( void ) + * int (*detect)(void) * This function should detect the current video mode settings and * store them in atafb_predefined[0] for later reference by the * user. Return the index+1 of an equivalent predefined mode or 0 * if there is no such. - * - * int (*encode_fix)( struct fb_fix_screeninfo *fix, - * struct atafb_par *par ) + * + * int (*encode_fix)(struct fb_fix_screeninfo *fix, + * struct atafb_par *par) * This function should fill in the 'fix' structure based on the * values in the 'par' structure. - * - * int (*decode_var)( struct fb_var_screeninfo *var, - * struct atafb_par *par ) + * !!! Obsolete, perhaps !!! + * + * int (*decode_var)(struct fb_var_screeninfo *var, + * struct atafb_par *par) * Get the video params out of 'var'. If a value doesn't fit, round * it up, if it's too big, return EINVAL. - * Round up in the following order: bits_per_pixel, xres, yres, - * xres_virtual, yres_virtual, xoffset, yoffset, grayscale, bitfields, + * Round up in the following order: bits_per_pixel, xres, yres, + * xres_virtual, yres_virtual, xoffset, yoffset, grayscale, bitfields, * horizontal timing, vertical timing. * - * int (*encode_var)( struct fb_var_screeninfo *var, - * struct atafb_par *par ); + * int (*encode_var)(struct fb_var_screeninfo *var, + * struct atafb_par *par); * Fill the 'var' structure based on the values in 'par' and maybe * other values read out of the hardware. - * - * void (*get_par)( struct atafb_par *par ) + * + * void (*get_par)(struct atafb_par *par) * Fill the hardware's 'par' structure. - * - * void (*set_par)( struct atafb_par *par ) + * !!! Used only by detect() !!! + * + * void (*set_par)(struct atafb_par *par) * Set the hardware according to 'par'. - * - * int (*getcolreg)( unsigned regno, unsigned *red, - * unsigned *green, unsigned *blue, - * unsigned *transp, struct fb_info *info ) - * Read a single color register and split it into - * colors/transparent. Return != 0 for invalid regno. * * void (*set_screen_base)(void *s_base) * Set the base address of the displayed frame buffer. Only called * if yres_virtual > yres or xres_virtual > xres. * - * int (*blank)( int blank_mode ) - * Blank the screen if blank_mode!=0, else unblank. If blank==NULL then + * int (*blank)(int blank_mode) + * Blank the screen if blank_mode != 0, else unblank. If blank == NULL then * the caller blanks by setting the CLUT to all black. Return 0 if blanking * succeeded, !=0 if un-/blanking failed due to e.g. a video mode which * doesn't support it. Implements VESA suspend and powerdown modes on * hardware that supports disabling hsync/vsync: - * blank_mode==2: suspend vsync, 3:suspend hsync, 4: powerdown. + * blank_mode == 2: suspend vsync, 3:suspend hsync, 4: powerdown. */ static struct fb_hwswitch { - int (*detect)( void ); - int (*encode_fix)( struct fb_fix_screeninfo *fix, - struct atafb_par *par ); - int (*decode_var)( struct fb_var_screeninfo *var, - struct atafb_par *par ); - int (*encode_var)( struct fb_var_screeninfo *var, - struct atafb_par *par ); - void (*get_par)( struct atafb_par *par ); - void (*set_par)( struct atafb_par *par ); - int (*getcolreg)( unsigned regno, unsigned *red, - unsigned *green, unsigned *blue, - unsigned *transp, struct fb_info *info ); + int (*detect)(void); + int (*encode_fix)(struct fb_fix_screeninfo *fix, + struct atafb_par *par); + int (*decode_var)(struct fb_var_screeninfo *var, + struct atafb_par *par); + int (*encode_var)(struct fb_var_screeninfo *var, + struct atafb_par *par); + void (*get_par)(struct atafb_par *par); + void (*set_par)(struct atafb_par *par); void (*set_screen_base)(void *s_base); - int (*blank)( int blank_mode ); - int (*pan_display)( struct fb_var_screeninfo *var, - struct atafb_par *par); + int (*blank)(int blank_mode); + int (*pan_display)(struct fb_var_screeninfo *var, + struct fb_info *info); } *fbhw; -static char *autodetect_names[] = {"autodetect", NULL}; -static char *stlow_names[] = {"stlow", NULL}; -static char *stmid_names[] = {"stmid", "default5", NULL}; -static char *sthigh_names[] = {"sthigh", "default4", NULL}; -static char *ttlow_names[] = {"ttlow", NULL}; -static char *ttmid_names[]= {"ttmid", "default1", NULL}; -static char *tthigh_names[]= {"tthigh", "default2", NULL}; -static char *vga2_names[] = {"vga2", NULL}; -static char *vga4_names[] = {"vga4", NULL}; -static char *vga16_names[] = {"vga16", "default3", NULL}; -static char *vga256_names[] = {"vga256", NULL}; -static char *falh2_names[] = {"falh2", NULL}; -static char *falh16_names[] = {"falh16", NULL}; +static char *autodetect_names[] = { "autodetect", NULL }; +static char *stlow_names[] = { "stlow", NULL }; +static char *stmid_names[] = { "stmid", "default5", NULL }; +static char *sthigh_names[] = { "sthigh", "default4", NULL }; +static char *ttlow_names[] = { "ttlow", NULL }; +static char *ttmid_names[] = { "ttmid", "default1", NULL }; +static char *tthigh_names[] = { "tthigh", "default2", NULL }; +static char *vga2_names[] = { "vga2", NULL }; +static char *vga4_names[] = { "vga4", NULL }; +static char *vga16_names[] = { "vga16", "default3", NULL }; +static char *vga256_names[] = { "vga256", NULL }; +static char *falh2_names[] = { "falh2", NULL }; +static char *falh16_names[] = { "falh16", NULL }; static char **fb_var_names[] = { - /* Writing the name arrays directly in this array (via "(char *[]){...}") - * crashes gcc 2.5.8 (sigsegv) if the inner array - * contains more than two items. I've also seen that all elements - * were identical to the last (my cross-gcc) :-(*/ autodetect_names, stlow_names, stmid_names, @@ -353,18 +432,17 @@ static char **fb_var_names[] = { falh2_names, falh16_names, NULL - /* ,NULL */ /* this causes a sigsegv on my gcc-2.5.8 */ }; static struct fb_var_screeninfo atafb_predefined[] = { - /* - * yres_virtual==0 means use hw-scrolling if possible, else yres - */ - { /* autodetect */ - 0, 0, 0, 0, 0, 0, 0, 0, /* xres-grayscale */ - {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, /* red green blue tran*/ + /* + * yres_virtual == 0 means use hw-scrolling if possible, else yres + */ + { /* autodetect */ + 0, 0, 0, 0, 0, 0, 0, 0, /* xres-grayscale */ + {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, /* red green blue tran*/ 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, - { /* st low */ + { /* st low */ 320, 200, 320, 0, 0, 0, 4, 0, {0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0}, 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, @@ -414,27 +492,100 @@ static struct fb_var_screeninfo atafb_predefined[] = { 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, }; -static int num_atafb_predefined=ARRAY_SIZE(atafb_predefined); +static int num_atafb_predefined = ARRAY_SIZE(atafb_predefined); +static struct fb_videomode atafb_modedb[] __initdata = { + /* + * Atari Video Modes + * + * If you change these, make sure to update DEFMODE_* as well! + */ -static int -get_video_mode(char *vname) + /* + * ST/TT Video Modes + */ + + { + /* 320x200, 15 kHz, 60 Hz (ST low) */ + "st-low", 60, 320, 200, 32000, 32, 16, 31, 14, 96, 4, + 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP + }, { + /* 640x200, 15 kHz, 60 Hz (ST medium) */ + "st-mid", 60, 640, 200, 32000, 32, 16, 31, 14, 96, 4, + 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP + }, { + /* 640x400, 30.25 kHz, 63.5 Hz (ST high) */ + "st-high", 63, 640, 400, 32000, 128, 0, 40, 14, 128, 4, + 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP + }, { + /* 320x480, 15 kHz, 60 Hz (TT low) */ + "tt-low", 60, 320, 480, 31041, 120, 100, 8, 16, 140, 30, + 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP + }, { + /* 640x480, 29 kHz, 57 Hz (TT medium) */ + "tt-mid", 60, 640, 480, 31041, 120, 100, 8, 16, 140, 30, + 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP + }, { + /* 1280x960, 29 kHz, 60 Hz (TT high) */ + "tt-high", 57, 640, 960, 31041, 120, 100, 8, 16, 140, 30, + 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP + }, + + /* + * VGA Video Modes + */ + + { + /* 640x480, 31 kHz, 60 Hz (VGA) */ + "vga", 63.5, 640, 480, 32000, 18, 42, 31, 11, 96, 3, + 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP + }, { + /* 640x400, 31 kHz, 70 Hz (VGA) */ + "vga70", 70, 640, 400, 32000, 18, 42, 31, 11, 96, 3, + FB_SYNC_VERT_HIGH_ACT | FB_SYNC_COMP_HIGH_ACT, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP + }, + + /* + * Falcon HiRes Video Modes + */ + + { + /* 896x608, 31 kHz, 60 Hz (Falcon High) */ + "falh", 60, 896, 608, 32000, 18, 42, 31, 1, 96,3, + 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP + }, +}; + +#define NUM_TOTAL_MODES ARRAY_SIZE(atafb_modedb) + +static char *mode_option __initdata = NULL; + + /* default modes */ + +#define DEFMODE_TT 5 /* "tt-high" for TT */ +#define DEFMODE_F30 7 /* "vga70" for Falcon */ +#define DEFMODE_STE 2 /* "st-high" for ST/E */ +#define DEFMODE_EXT 6 /* "vga" for external */ + + +static int get_video_mode(char *vname) { - char ***name_list; - char **name; - int i; - name_list=fb_var_names; - for (i = 0 ; i < num_atafb_predefined ; i++) { - name=*(name_list++); - if (! name || ! *name) - break; - while (*name) { - if (! strcmp(vname, *name)) - return i+1; - name++; + char ***name_list; + char **name; + int i; + + name_list = fb_var_names; + for (i = 0; i < num_atafb_predefined; i++) { + name = *name_list++; + if (!name || !*name) + break; + while (*name) { + if (!strcmp(vname, *name)) + return i + 1; + name++; + } } - } - return 0; + return 0; } @@ -443,93 +594,84 @@ get_video_mode(char *vname) #ifdef ATAFB_TT -static int tt_encode_fix( struct fb_fix_screeninfo *fix, - struct atafb_par *par ) - +static int tt_encode_fix(struct fb_fix_screeninfo *fix, struct atafb_par *par) { int mode; - strcpy(fix->id,"Atari Builtin"); + strcpy(fix->id, "Atari Builtin"); fix->smem_start = (unsigned long)real_screen_base; fix->smem_len = screen_len; - fix->type=FB_TYPE_INTERLEAVED_PLANES; - fix->type_aux=2; - fix->visual=FB_VISUAL_PSEUDOCOLOR; + fix->type = FB_TYPE_INTERLEAVED_PLANES; + fix->type_aux = 2; + fix->visual = FB_VISUAL_PSEUDOCOLOR; mode = par->hw.tt.mode & TT_SHIFTER_MODEMASK; if (mode == TT_SHIFTER_TTHIGH || mode == TT_SHIFTER_STHIGH) { - fix->type=FB_TYPE_PACKED_PIXELS; - fix->type_aux=0; + fix->type = FB_TYPE_PACKED_PIXELS; + fix->type_aux = 0; if (mode == TT_SHIFTER_TTHIGH) - fix->visual=FB_VISUAL_MONO01; + fix->visual = FB_VISUAL_MONO01; } - fix->xpanstep=0; - fix->ypanstep=1; - fix->ywrapstep=0; + fix->xpanstep = 0; + fix->ypanstep = 1; + fix->ywrapstep = 0; fix->line_length = 0; fix->accel = FB_ACCEL_ATARIBLITT; return 0; } - -static int tt_decode_var( struct fb_var_screeninfo *var, - struct atafb_par *par ) +static int tt_decode_var(struct fb_var_screeninfo *var, struct atafb_par *par) { - int xres=var->xres; - int yres=var->yres; - int bpp=var->bits_per_pixel; + int xres = var->xres; + int yres = var->yres; + int bpp = var->bits_per_pixel; int linelen; int yres_virtual = var->yres_virtual; if (mono_moni) { - if (bpp > 1 || xres > sttt_xres*2 || yres >tt_yres*2) + if (bpp > 1 || xres > sttt_xres * 2 || yres > tt_yres * 2) return -EINVAL; - par->hw.tt.mode=TT_SHIFTER_TTHIGH; - xres=sttt_xres*2; - yres=tt_yres*2; - bpp=1; + par->hw.tt.mode = TT_SHIFTER_TTHIGH; + xres = sttt_xres * 2; + yres = tt_yres * 2; + bpp = 1; } else { if (bpp > 8 || xres > sttt_xres || yres > tt_yres) return -EINVAL; if (bpp > 4) { - if (xres > sttt_xres/2 || yres > tt_yres) + if (xres > sttt_xres / 2 || yres > tt_yres) return -EINVAL; - par->hw.tt.mode=TT_SHIFTER_TTLOW; - xres=sttt_xres/2; - yres=tt_yres; - bpp=8; - } - else if (bpp > 2) { + par->hw.tt.mode = TT_SHIFTER_TTLOW; + xres = sttt_xres / 2; + yres = tt_yres; + bpp = 8; + } else if (bpp > 2) { if (xres > sttt_xres || yres > tt_yres) return -EINVAL; - if (xres > sttt_xres/2 || yres > st_yres/2) { - par->hw.tt.mode=TT_SHIFTER_TTMID; - xres=sttt_xres; - yres=tt_yres; - bpp=4; - } - else { - par->hw.tt.mode=TT_SHIFTER_STLOW; - xres=sttt_xres/2; - yres=st_yres/2; - bpp=4; + if (xres > sttt_xres / 2 || yres > st_yres / 2) { + par->hw.tt.mode = TT_SHIFTER_TTMID; + xres = sttt_xres; + yres = tt_yres; + bpp = 4; + } else { + par->hw.tt.mode = TT_SHIFTER_STLOW; + xres = sttt_xres / 2; + yres = st_yres / 2; + bpp = 4; } - } - else if (bpp > 1) { - if (xres > sttt_xres || yres > st_yres/2) + } else if (bpp > 1) { + if (xres > sttt_xres || yres > st_yres / 2) return -EINVAL; - par->hw.tt.mode=TT_SHIFTER_STMID; - xres=sttt_xres; - yres=st_yres/2; - bpp=2; - } - else if (var->xres > sttt_xres || var->yres > st_yres) { + par->hw.tt.mode = TT_SHIFTER_STMID; + xres = sttt_xres; + yres = st_yres / 2; + bpp = 2; + } else if (var->xres > sttt_xres || var->yres > st_yres) { return -EINVAL; - } - else { - par->hw.tt.mode=TT_SHIFTER_STHIGH; - xres=sttt_xres; - yres=st_yres; - bpp=1; + } else { + par->hw.tt.mode = TT_SHIFTER_STHIGH; + xres = sttt_xres; + yres = st_yres; + bpp = 1; } } if (yres_virtual <= 0) @@ -537,10 +679,10 @@ static int tt_decode_var( struct fb_var_screeninfo *var, else if (yres_virtual < yres) yres_virtual = yres; if (var->sync & FB_SYNC_EXT) - par->hw.tt.sync=0; + par->hw.tt.sync = 0; else - par->hw.tt.sync=1; - linelen=xres*bpp/8; + par->hw.tt.sync = 1; + linelen = xres * bpp / 8; if (yres_virtual * linelen > screen_len && screen_len) return -EINVAL; if (yres * linelen > screen_len && screen_len) @@ -552,154 +694,123 @@ static int tt_decode_var( struct fb_var_screeninfo *var, return 0; } -static int tt_encode_var( struct fb_var_screeninfo *var, - struct atafb_par *par ) +static int tt_encode_var(struct fb_var_screeninfo *var, struct atafb_par *par) { int linelen; memset(var, 0, sizeof(struct fb_var_screeninfo)); - var->red.offset=0; - var->red.length=4; - var->red.msb_right=0; - var->grayscale=0; - - var->pixclock=31041; - var->left_margin=120; /* these may be incorrect */ - var->right_margin=100; - var->upper_margin=8; - var->lower_margin=16; - var->hsync_len=140; - var->vsync_len=30; - - var->height=-1; - var->width=-1; + var->red.offset = 0; + var->red.length = 4; + var->red.msb_right = 0; + var->grayscale = 0; + + var->pixclock = 31041; + var->left_margin = 120; /* these may be incorrect */ + var->right_margin = 100; + var->upper_margin = 8; + var->lower_margin = 16; + var->hsync_len = 140; + var->vsync_len = 30; + + var->height = -1; + var->width = -1; if (par->hw.tt.sync & 1) - var->sync=0; + var->sync = 0; else - var->sync=FB_SYNC_EXT; + var->sync = FB_SYNC_EXT; switch (par->hw.tt.mode & TT_SHIFTER_MODEMASK) { case TT_SHIFTER_STLOW: - var->xres=sttt_xres/2; - var->xres_virtual=sttt_xres_virtual/2; - var->yres=st_yres/2; - var->bits_per_pixel=4; + var->xres = sttt_xres / 2; + var->xres_virtual = sttt_xres_virtual / 2; + var->yres = st_yres / 2; + var->bits_per_pixel = 4; break; case TT_SHIFTER_STMID: - var->xres=sttt_xres; - var->xres_virtual=sttt_xres_virtual; - var->yres=st_yres/2; - var->bits_per_pixel=2; + var->xres = sttt_xres; + var->xres_virtual = sttt_xres_virtual; + var->yres = st_yres / 2; + var->bits_per_pixel = 2; break; case TT_SHIFTER_STHIGH: - var->xres=sttt_xres; - var->xres_virtual=sttt_xres_virtual; - var->yres=st_yres; - var->bits_per_pixel=1; + var->xres = sttt_xres; + var->xres_virtual = sttt_xres_virtual; + var->yres = st_yres; + var->bits_per_pixel = 1; break; case TT_SHIFTER_TTLOW: - var->xres=sttt_xres/2; - var->xres_virtual=sttt_xres_virtual/2; - var->yres=tt_yres; - var->bits_per_pixel=8; + var->xres = sttt_xres / 2; + var->xres_virtual = sttt_xres_virtual / 2; + var->yres = tt_yres; + var->bits_per_pixel = 8; break; case TT_SHIFTER_TTMID: - var->xres=sttt_xres; - var->xres_virtual=sttt_xres_virtual; - var->yres=tt_yres; - var->bits_per_pixel=4; + var->xres = sttt_xres; + var->xres_virtual = sttt_xres_virtual; + var->yres = tt_yres; + var->bits_per_pixel = 4; break; case TT_SHIFTER_TTHIGH: - var->red.length=0; - var->xres=sttt_xres*2; - var->xres_virtual=sttt_xres_virtual*2; - var->yres=tt_yres*2; - var->bits_per_pixel=1; + var->red.length = 0; + var->xres = sttt_xres * 2; + var->xres_virtual = sttt_xres_virtual * 2; + var->yres = tt_yres * 2; + var->bits_per_pixel = 1; break; - } - var->blue=var->green=var->red; - var->transp.offset=0; - var->transp.length=0; - var->transp.msb_right=0; - linelen=var->xres_virtual * var->bits_per_pixel / 8; - if (! use_hwscroll) - var->yres_virtual=var->yres; + } + var->blue = var->green = var->red; + var->transp.offset = 0; + var->transp.length = 0; + var->transp.msb_right = 0; + linelen = var->xres_virtual * var->bits_per_pixel / 8; + if (!use_hwscroll) + var->yres_virtual = var->yres; else if (screen_len) { if (par->yres_virtual) var->yres_virtual = par->yres_virtual; else - /* yres_virtual==0 means use maximum */ + /* yres_virtual == 0 means use maximum */ var->yres_virtual = screen_len / linelen; } else { if (hwscroll < 0) var->yres_virtual = 2 * var->yres; else - var->yres_virtual=var->yres+hwscroll * 16; + var->yres_virtual = var->yres + hwscroll * 16; } - var->xoffset=0; + var->xoffset = 0; if (screen_base) - var->yoffset=(par->screen_base - screen_base)/linelen; + var->yoffset = (par->screen_base - screen_base) / linelen; else - var->yoffset=0; - var->nonstd=0; - var->activate=0; - var->vmode=FB_VMODE_NONINTERLACED; + var->yoffset = 0; + var->nonstd = 0; + var->activate = 0; + var->vmode = FB_VMODE_NONINTERLACED; return 0; } - -static void tt_get_par( struct atafb_par *par ) +static void tt_get_par(struct atafb_par *par) { unsigned long addr; - par->hw.tt.mode=shifter_tt.tt_shiftmode; - par->hw.tt.sync=shifter.syncmode; + par->hw.tt.mode = shifter_tt.tt_shiftmode; + par->hw.tt.sync = shifter.syncmode; addr = ((shifter.bas_hi & 0xff) << 16) | ((shifter.bas_md & 0xff) << 8) | ((shifter.bas_lo & 0xff)); par->screen_base = phys_to_virt(addr); } -static void tt_set_par( struct atafb_par *par ) +static void tt_set_par(struct atafb_par *par) { - shifter_tt.tt_shiftmode=par->hw.tt.mode; - shifter.syncmode=par->hw.tt.sync; + shifter_tt.tt_shiftmode = par->hw.tt.mode; + shifter.syncmode = par->hw.tt.sync; /* only set screen_base if really necessary */ if (current_par.screen_base != par->screen_base) fbhw->set_screen_base(par->screen_base); } - -static int tt_getcolreg(unsigned regno, unsigned *red, - unsigned *green, unsigned *blue, - unsigned *transp, struct fb_info *info) -{ - int t, col; - - if ((shifter_tt.tt_shiftmode & TT_SHIFTER_MODEMASK) == TT_SHIFTER_STHIGH) - regno += 254; - if (regno > 255) - return 1; - t = tt_palette[regno]; - col = t & 15; - col |= col << 4; - col |= col << 8; - *blue = col; - col = (t >> 4) & 15; - col |= col << 4; - col |= col << 8; - *green = col; - col = (t >> 8) & 15; - col |= col << 4; - col |= col << 8; - *red = col; - *transp = 0; - return 0; -} - - -static int tt_setcolreg(unsigned regno, unsigned red, - unsigned green, unsigned blue, - unsigned transp, struct fb_info *info) +static int tt_setcolreg(unsigned int regno, unsigned int red, + unsigned int green, unsigned int blue, + unsigned int transp, struct fb_info *info) { if ((shifter_tt.tt_shiftmode & TT_SHIFTER_MODEMASK) == TT_SHIFTER_STHIGH) regno += 254; @@ -708,15 +819,14 @@ static int tt_setcolreg(unsigned regno, unsigned red, tt_palette[regno] = (((red >> 12) << 8) | ((green >> 12) << 4) | (blue >> 12)); if ((shifter_tt.tt_shiftmode & TT_SHIFTER_MODEMASK) == - TT_SHIFTER_STHIGH && regno == 254) + TT_SHIFTER_STHIGH && regno == 254) tt_palette[0] = 0; return 0; } - -static int tt_detect( void ) - -{ struct atafb_par par; +static int tt_detect(void) +{ + struct atafb_par par; /* Determine the connected monitor: The DMA sound must be * disabled before reading the MFP GPIP, because the Sound @@ -726,9 +836,9 @@ static int tt_detect( void ) * announced that the Eagle is TT compatible, but only the PCM is * missing... */ - if (ATARIHW_PRESENT(PCM_8BIT)) { + if (ATARIHW_PRESENT(PCM_8BIT)) { tt_dmasnd.ctrl = DMASND_CTRL_OFF; - udelay(20); /* wait a while for things to settle down */ + udelay(20); /* wait a while for things to settle down */ } mono_moni = (mfp.par_dt_reg & 0x80) == 0; @@ -755,19 +865,24 @@ static struct pixel_clock { unsigned long f; /* f/[Hz] */ unsigned long t; /* t/[ps] (=1/f) */ int right, hsync, left; /* standard timing in clock cycles, not pixel */ - /* hsync initialized in falcon_detect() */ + /* hsync initialized in falcon_detect() */ int sync_mask; /* or-mask for hw.falcon.sync to set this clock */ int control_mask; /* ditto, for hw.falcon.vid_control */ -} -f25 = {25175000, 39721, 18, 0, 42, 0x0, VCO_CLOCK25}, -f32 = {32000000, 31250, 18, 0, 42, 0x0, 0}, -fext = { 0, 0, 18, 0, 42, 0x1, 0}; +} f25 = { + 25175000, 39721, 18, 0, 42, 0x0, VCO_CLOCK25 +}, f32 = { + 32000000, 31250, 18, 0, 42, 0x0, 0 +}, fext = { + 0, 0, 18, 0, 42, 0x1, 0 +}; /* VIDEL-prescale values [mon_type][pixel_length from VCO] */ -static int vdl_prescale[4][3] = {{4,2,1}, {4,2,1}, {4,2,2}, {4,2,1}}; +static int vdl_prescale[4][3] = { + { 4,2,1 }, { 4,2,1 }, { 4,2,2 }, { 4,2,1 } +}; /* Default hsync timing [mon_type] in picoseconds */ -static long h_syncs[4] = {3000000, 4875000, 4000000, 4875000}; +static long h_syncs[4] = { 3000000, 4875000, 4000000, 4875000 }; #ifdef FBCON_HAS_CFB16 static u16 fbcon_cfb16_cmap[16]; @@ -775,12 +890,12 @@ static u16 fbcon_cfb16_cmap[16]; static inline int hxx_prescale(struct falcon_hw *hw) { - return hw->ste_mode ? 16 : - vdl_prescale[mon_type][hw->vid_mode >> 2 & 0x3]; + return hw->ste_mode ? 16 + : vdl_prescale[mon_type][hw->vid_mode >> 2 & 0x3]; } -static int falcon_encode_fix( struct fb_fix_screeninfo *fix, - struct atafb_par *par ) +static int falcon_encode_fix(struct fb_fix_screeninfo *fix, + struct atafb_par *par) { strcpy(fix->id, "Atari Builtin"); fix->smem_start = (unsigned long)real_screen_base; @@ -796,8 +911,7 @@ static int falcon_encode_fix( struct fb_fix_screeninfo *fix, fix->type_aux = 0; /* no smooth scrolling with longword aligned video mem */ fix->xpanstep = 32; - } - else if (par->hw.falcon.f_shift & 0x100) { + } else if (par->hw.falcon.f_shift & 0x100) { fix->type = FB_TYPE_PACKED_PIXELS; fix->type_aux = 0; /* Is this ok or should it be DIRECTCOLOR? */ @@ -809,9 +923,8 @@ static int falcon_encode_fix( struct fb_fix_screeninfo *fix, return 0; } - -static int falcon_decode_var( struct fb_var_screeninfo *var, - struct atafb_par *par ) +static int falcon_decode_var(struct fb_var_screeninfo *var, + struct atafb_par *par) { int bpp = var->bits_per_pixel; int xres = var->xres; @@ -823,17 +936,19 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, int linelen; int interlace = 0, doubleline = 0; struct pixel_clock *pclock; - int plen; /* width of pixel in clock cycles */ + int plen; /* width of pixel in clock cycles */ int xstretch; int prescale; int longoffset = 0; int hfreq, vfreq; + int hdb_off, hde_off, base_off; + int gstart, gend1, gend2, align; /* Get the video params out of 'var'. If a value doesn't fit, round it up, if it's too big, return EINVAL. - Round up in the following order: bits_per_pixel, xres, yres, - xres_virtual, yres_virtual, xoffset, yoffset, grayscale, bitfields, + Round up in the following order: bits_per_pixel, xres, yres, + xres_virtual, yres_virtual, xoffset, yoffset, grayscale, bitfields, horizontal timing, vertical timing. There is a maximum of screen resolution determined by pixelclock @@ -843,11 +958,11 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, Frequency range for multisync monitors is given via command line. For TV and SM124 both frequencies are fixed. - X % 16 == 0 to fit 8x?? font (except 1 bitplane modes must use X%32==0) + X % 16 == 0 to fit 8x?? font (except 1 bitplane modes must use X%32 == 0) Y % 16 == 0 to fit 8x16 font Y % 8 == 0 if Y<400 - Currently interlace and doubleline mode in var are ignored. + Currently interlace and doubleline mode in var are ignored. On SM124 and TV only the standard resolutions can be used. */ @@ -855,43 +970,38 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, if (!xres || !yres || !bpp) return -EINVAL; - if (mon_type == F_MON_SM && bpp != 1) { + if (mon_type == F_MON_SM && bpp != 1) return -EINVAL; - } - else if (bpp <= 1) { + + if (bpp <= 1) { bpp = 1; par->hw.falcon.f_shift = 0x400; par->hw.falcon.st_shift = 0x200; - } - else if (bpp <= 2) { + } else if (bpp <= 2) { bpp = 2; par->hw.falcon.f_shift = 0x000; par->hw.falcon.st_shift = 0x100; - } - else if (bpp <= 4) { + } else if (bpp <= 4) { bpp = 4; par->hw.falcon.f_shift = 0x000; par->hw.falcon.st_shift = 0x000; - } - else if (bpp <= 8) { + } else if (bpp <= 8) { bpp = 8; par->hw.falcon.f_shift = 0x010; - } - else if (bpp <= 16) { - bpp = 16; /* packed pixel mode */ - par->hw.falcon.f_shift = 0x100; /* hicolor, no overlay */ - } - else + } else if (bpp <= 16) { + bpp = 16; /* packed pixel mode */ + par->hw.falcon.f_shift = 0x100; /* hicolor, no overlay */ + } else return -EINVAL; par->hw.falcon.bpp = bpp; if (mon_type == F_MON_SM || DontCalcRes) { /* Skip all calculations. VGA/TV/SC1224 only supported. */ struct fb_var_screeninfo *myvar = &atafb_predefined[0]; - + if (bpp > myvar->bits_per_pixel || - var->xres > myvar->xres || - var->yres > myvar->yres) + var->xres > myvar->xres || + var->yres > myvar->yres) return -EINVAL; fbhw->get_par(par); /* Current par will be new par */ goto set_screen_base; /* Don't forget this */ @@ -910,8 +1020,8 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, yres = 400; /* 2 planes must use STE compatibility mode */ - par->hw.falcon.ste_mode = bpp==2; - par->hw.falcon.mono = bpp==1; + par->hw.falcon.ste_mode = bpp == 2; + par->hw.falcon.mono = bpp == 1; /* Total and visible scanline length must be a multiple of one longword, * this and the console fontwidth yields the alignment for xres and @@ -967,8 +1077,7 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, left_margin = hsync_len = 128 / plen; right_margin = 0; /* TODO set all margins */ - } - else + } else #endif if (mon_type == F_MON_SC || mon_type == F_MON_TV) { plen = 2 * xstretch; @@ -1002,26 +1111,24 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, vsync_len *= 2; } } - } - else - { /* F_MON_VGA */ + } else { /* F_MON_VGA */ if (bpp == 16) - xstretch = 2; /* Double pixel width only for hicolor */ + xstretch = 2; /* Double pixel width only for hicolor */ /* Default values are used for vert./hor. timing if no pixelclock given. */ if (var->pixclock == 0) { int linesize; /* Choose master pixelclock depending on hor. timing */ plen = 1 * xstretch; - if ((plen * xres + f25.right+f25.hsync+f25.left) * + if ((plen * xres + f25.right + f25.hsync + f25.left) * fb_info.monspecs.hfmin < f25.f) pclock = &f25; - else if ((plen * xres + f32.right+f32.hsync+f32.left) * - fb_info.monspecs.hfmin < f32.f) + else if ((plen * xres + f32.right + f32.hsync + + f32.left) * fb_info.monspecs.hfmin < f32.f) pclock = &f32; - else if ((plen * xres + fext.right+fext.hsync+fext.left) * - fb_info.monspecs.hfmin < fext.f - && fext.f) + else if ((plen * xres + fext.right + fext.hsync + + fext.left) * fb_info.monspecs.hfmin < fext.f && + fext.f) pclock = &fext; else return -EINVAL; @@ -1033,22 +1140,24 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, upper_margin = 31; lower_margin = 11; vsync_len = 3; - } - else { + } else { /* Choose largest pixelclock <= wanted clock */ int i; unsigned long pcl = ULONG_MAX; pclock = 0; - for (i=1; i <= 4; i *= 2) { - if (f25.t*i >= var->pixclock && f25.t*i < pcl) { + for (i = 1; i <= 4; i *= 2) { + if (f25.t * i >= var->pixclock && + f25.t * i < pcl) { pcl = f25.t * i; pclock = &f25; } - if (f32.t*i >= var->pixclock && f32.t*i < pcl) { + if (f32.t * i >= var->pixclock && + f32.t * i < pcl) { pcl = f32.t * i; pclock = &f32; } - if (fext.t && fext.t*i >= var->pixclock && fext.t*i < pcl) { + if (fext.t && fext.t * i >= var->pixclock && + fext.t * i < pcl) { pcl = fext.t * i; pclock = &fext; } @@ -1070,8 +1179,7 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, upper_margin = (upper_margin + 1) / 2; lower_margin = (lower_margin + 1) / 2; vsync_len = (vsync_len + 1) / 2; - } - else if (var->vmode & FB_VMODE_DOUBLE) { + } else if (var->vmode & FB_VMODE_DOUBLE) { /* External unit is [double lines per frame] */ upper_margin *= 2; lower_margin *= 2; @@ -1079,7 +1187,7 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, } } if (pclock == &fext) - longoffset = 1; /* VIDEL doesn't synchronize on short offset */ + longoffset = 1; /* VIDEL doesn't synchronize on short offset */ } /* Is video bus bandwidth (32MB/s) too low for this resolution? */ /* this is definitely wrong if bus clock != 32MHz */ @@ -1098,7 +1206,7 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, * between interlace and non-interlace without messing around * with these. */ - again: +again: /* Set base_offset 128 and video bus width */ par->hw.falcon.vid_control = mon_type | f030_bus_width; if (!longoffset) @@ -1112,37 +1220,34 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, /* External or internal clock */ par->hw.falcon.sync = pclock->sync_mask | 0x2; /* Pixellength and prescale */ - par->hw.falcon.vid_mode = (2/plen) << 2; + par->hw.falcon.vid_mode = (2 / plen) << 2; if (doubleline) par->hw.falcon.vid_mode |= VMO_DOUBLE; if (interlace) par->hw.falcon.vid_mode |= VMO_INTER; /********************* - Horizontal timing: unit = [master clock cycles] - unit of hxx-registers: [master clock cycles * prescale] - Hxx-registers are 9 bit wide - - 1 line = ((hht + 2) * 2 * prescale) clock cycles - - graphic output = hdb & 0x200 ? - ((hht+2)*2 - hdb + hde) * prescale - hdboff + hdeoff: - ( hht + 2 - hdb + hde) * prescale - hdboff + hdeoff - (this must be a multiple of plen*128/bpp, on VGA pixels - to the right may be cut off with a bigger right margin) - - start of graphics relative to start of 1st halfline = hdb & 0x200 ? - (hdb - hht - 2) * prescale + hdboff : - hdb * prescale + hdboff - - end of graphics relative to start of 1st halfline = - (hde + hht + 2) * prescale + hdeoff - *********************/ + * Horizontal timing: unit = [master clock cycles] + * unit of hxx-registers: [master clock cycles * prescale] + * Hxx-registers are 9 bit wide + * + * 1 line = ((hht + 2) * 2 * prescale) clock cycles + * + * graphic output = hdb & 0x200 ? + * ((hht + 2) * 2 - hdb + hde) * prescale - hdboff + hdeoff: + * (hht + 2 - hdb + hde) * prescale - hdboff + hdeoff + * (this must be a multiple of plen*128/bpp, on VGA pixels + * to the right may be cut off with a bigger right margin) + * + * start of graphics relative to start of 1st halfline = hdb & 0x200 ? + * (hdb - hht - 2) * prescale + hdboff : + * hdb * prescale + hdboff + * + * end of graphics relative to start of 1st halfline = + * (hde + hht + 2) * prescale + hdeoff + *********************/ /* Calculate VIDEL registers */ - { - int hdb_off, hde_off, base_off; - int gstart, gend1, gend2, align; - +{ prescale = hxx_prescale(&par->hw.falcon); base_off = par->hw.falcon.vid_control & VCO_SHORTOFFS ? 64 : 128; @@ -1154,8 +1259,7 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, align = 1; hde_off = 0; hdb_off = (base_off + 16 * plen) + prescale; - } - else { + } else { align = 128 / bpp; hde_off = ((128 / bpp + 2) * plen); if (par->hw.falcon.ste_mode) @@ -1164,23 +1268,24 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, hdb_off = (base_off + (128 / bpp + 18) * plen) + prescale; } - gstart = (prescale/2 + plen * left_margin) / prescale; + gstart = (prescale / 2 + plen * left_margin) / prescale; /* gend1 is for hde (gend-gstart multiple of align), shifter's xres */ - gend1 = gstart + ((xres + align-1) / align)*align * plen / prescale; + gend1 = gstart + ((xres + align - 1) / align) * align * plen / prescale; /* gend2 is for hbb, visible xres (rest to gend1 is cut off by hblank) */ gend2 = gstart + xres * plen / prescale; par->HHT = plen * (left_margin + xres + right_margin) / (2 * prescale) - 2; /* par->HHT = (gend2 + plen * right_margin / prescale) / 2 - 2;*/ - par->HDB = gstart - hdb_off/prescale; + par->HDB = gstart - hdb_off / prescale; par->HBE = gstart; - if (par->HDB < 0) par->HDB += par->HHT + 2 + 0x200; - par->HDE = gend1 - par->HHT - 2 - hde_off/prescale; + if (par->HDB < 0) + par->HDB += par->HHT + 2 + 0x200; + par->HDE = gend1 - par->HHT - 2 - hde_off / prescale; par->HBB = gend2 - par->HHT - 2; #if 0 /* One more Videl constraint: data fetch of two lines must not overlap */ - if ((par->HDB & 0x200) && (par->HDB & ~0x200) - par->HDE <= 5) { + if ((par->HDB & 0x200) && (par->HDB & ~0x200) - par->HDE <= 5) { /* if this happens increase margins, decrease hfreq. */ } #endif @@ -1189,11 +1294,11 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, par->HSS = par->HHT + 2 - plen * hsync_len / prescale; if (par->HSS < par->HBB) par->HSS = par->HBB; - } +} /* check hor. frequency */ - hfreq = pclock->f / ((par->HHT+2)*prescale*2); - if (hfreq > fb_info.monspecs.hfmax && mon_type!=F_MON_VGA) { + hfreq = pclock->f / ((par->HHT + 2) * prescale * 2); + if (hfreq > fb_info.monspecs.hfmax && mon_type != F_MON_VGA) { /* ++guenther: ^^^^^^^^^^^^^^^^^^^ can't remember why I did this */ /* Too high -> enlarge margin */ left_margin += 1; @@ -1213,12 +1318,14 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, par->VBE = (upper_margin * 2 + 1); /* must begin on odd halfline */ par->VDB = par->VBE; par->VDE = yres; - if (!interlace) par->VDE <<= 1; - if (doubleline) par->VDE <<= 1; /* VDE now half lines per (half-)frame */ + if (!interlace) + par->VDE <<= 1; + if (doubleline) + par->VDE <<= 1; /* VDE now half lines per (half-)frame */ par->VDE += par->VDB; par->VBB = par->VDE; par->VFT = par->VBB + (lower_margin * 2 - 1) - 1; - par->VSS = par->VFT+1 - (vsync_len * 2 - 1); + par->VSS = par->VFT + 1 - (vsync_len * 2 - 1); /* vbb,vss,vft must be even in interlace mode */ if (interlace) { par->VBB++; @@ -1229,55 +1336,53 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, /* V-frequency check, hope I didn't create any loop here. */ /* Interlace and doubleline are mutually exclusive. */ vfreq = (hfreq * 2) / (par->VFT + 1); - if (vfreq > fb_info.monspecs.vfmax && !doubleline && !interlace) { + if (vfreq > fb_info.monspecs.vfmax && !doubleline && !interlace) { /* Too high -> try again with doubleline */ doubleline = 1; goto again; - } - else if (vfreq < fb_info.monspecs.vfmin && !interlace && !doubleline) { + } else if (vfreq < fb_info.monspecs.vfmin && !interlace && !doubleline) { /* Too low -> try again with interlace */ interlace = 1; goto again; - } - else if (vfreq < fb_info.monspecs.vfmin && doubleline) { + } else if (vfreq < fb_info.monspecs.vfmin && doubleline) { /* Doubleline too low -> clear doubleline and enlarge margins */ int lines; doubleline = 0; - for (lines=0; - (hfreq*2)/(par->VFT+1+4*lines-2*yres)>fb_info.monspecs.vfmax; + for (lines = 0; + (hfreq * 2) / (par->VFT + 1 + 4 * lines - 2 * yres) > + fb_info.monspecs.vfmax; lines++) ; upper_margin += lines; lower_margin += lines; goto again; - } - else if (vfreq > fb_info.monspecs.vfmax && doubleline) { + } else if (vfreq > fb_info.monspecs.vfmax && doubleline) { /* Doubleline too high -> enlarge margins */ int lines; - for (lines=0; - (hfreq*2)/(par->VFT+1+4*lines)>fb_info.monspecs.vfmax; - lines+=2) + for (lines = 0; + (hfreq * 2) / (par->VFT + 1 + 4 * lines) > + fb_info.monspecs.vfmax; + lines += 2) ; upper_margin += lines; lower_margin += lines; goto again; - } - else if (vfreq > fb_info.monspecs.vfmax && interlace) { + } else if (vfreq > fb_info.monspecs.vfmax && interlace) { /* Interlace, too high -> enlarge margins */ int lines; - for (lines=0; - (hfreq*2)/(par->VFT+1+4*lines)>fb_info.monspecs.vfmax; + for (lines = 0; + (hfreq * 2) / (par->VFT + 1 + 4 * lines) > + fb_info.monspecs.vfmax; lines++) ; upper_margin += lines; lower_margin += lines; goto again; - } - else if (vfreq < fb_info.monspecs.vfmin || - vfreq > fb_info.monspecs.vfmax) + } else if (vfreq < fb_info.monspecs.vfmin || + vfreq > fb_info.monspecs.vfmax) return -EINVAL; - set_screen_base: +set_screen_base: linelen = xres_virtual * bpp / 8; if (yres_virtual * linelen > screen_len && screen_len) return -EINVAL; @@ -1289,11 +1394,20 @@ static int falcon_decode_var( struct fb_var_screeninfo *var, par->screen_base = screen_base + var->yoffset * linelen; par->hw.falcon.xoffset = 0; + // FIXME!!! sort of works, no crash + //par->next_line = linelen; + //par->next_plane = yres_virtual * linelen; + par->next_line = linelen; + par->next_plane = 2; + // crashes + //par->next_plane = linelen; + //par->next_line = yres_virtual * linelen; + return 0; } -static int falcon_encode_var( struct fb_var_screeninfo *var, - struct atafb_par *par ) +static int falcon_encode_var(struct fb_var_screeninfo *var, + struct atafb_par *par) { /* !!! only for VGA !!! */ int linelen; @@ -1306,10 +1420,10 @@ static int falcon_encode_var( struct fb_var_screeninfo *var, var->pixclock = hw->sync & 0x1 ? fext.t : hw->vid_control & VCO_CLOCK25 ? f25.t : f32.t; - var->height=-1; - var->width=-1; + var->height = -1; + var->width = -1; - var->sync=0; + var->sync = 0; if (hw->vid_control & VCO_HSYPOS) var->sync |= FB_SYNC_HOR_HIGH_ACT; if (hw->vid_control & VCO_VSYPOS) @@ -1320,7 +1434,7 @@ static int falcon_encode_var( struct fb_var_screeninfo *var, var->vmode |= FB_VMODE_INTERLACED; if (hw->vid_mode & VMO_DOUBLE) var->vmode |= FB_VMODE_DOUBLE; - + /* visible y resolution: * Graphics display starts at line VDB and ends at line * VDE. If interlace mode off unit of VC-registers is @@ -1332,14 +1446,15 @@ static int falcon_encode_var( struct fb_var_screeninfo *var, if (var->vmode & FB_VMODE_DOUBLE) var->yres >>= 1; - /* to get bpp, we must examine f_shift and st_shift. + /* + * to get bpp, we must examine f_shift and st_shift. * f_shift is valid if any of bits no. 10, 8 or 4 * is set. Priority in f_shift is: 10 ">" 8 ">" 4, i.e. * if bit 10 set then bit 8 and bit 4 don't care... * If all these bits are 0 get display depth from st_shift * (as for ST and STE) */ - if (hw->f_shift & 0x400) /* 2 colors */ + if (hw->f_shift & 0x400) /* 2 colors */ var->bits_per_pixel = 1; else if (hw->f_shift & 0x100) /* hicolor */ var->bits_per_pixel = 16; @@ -1349,7 +1464,7 @@ static int falcon_encode_var( struct fb_var_screeninfo *var, var->bits_per_pixel = 4; else if (hw->st_shift == 0x100) var->bits_per_pixel = 2; - else /* if (hw->st_shift == 0x200) */ + else /* if (hw->st_shift == 0x200) */ var->bits_per_pixel = 1; var->xres = hw->line_width * 16 / var->bits_per_pixel; @@ -1358,42 +1473,42 @@ static int falcon_encode_var( struct fb_var_screeninfo *var, var->xres_virtual += 16; if (var->bits_per_pixel == 16) { - var->red.offset=11; - var->red.length=5; - var->red.msb_right=0; - var->green.offset=5; - var->green.length=6; - var->green.msb_right=0; - var->blue.offset=0; - var->blue.length=5; - var->blue.msb_right=0; - } - else { - var->red.offset=0; + var->red.offset = 11; + var->red.length = 5; + var->red.msb_right = 0; + var->green.offset = 5; + var->green.length = 6; + var->green.msb_right = 0; + var->blue.offset = 0; + var->blue.length = 5; + var->blue.msb_right = 0; + } else { + var->red.offset = 0; var->red.length = hw->ste_mode ? 4 : 6; - var->red.msb_right=0; - var->grayscale=0; - var->blue=var->green=var->red; + if (var->red.length > var->bits_per_pixel) + var->red.length = var->bits_per_pixel; + var->red.msb_right = 0; + var->grayscale = 0; + var->blue = var->green = var->red; } - var->transp.offset=0; - var->transp.length=0; - var->transp.msb_right=0; + var->transp.offset = 0; + var->transp.length = 0; + var->transp.msb_right = 0; linelen = var->xres_virtual * var->bits_per_pixel / 8; if (screen_len) { if (par->yres_virtual) var->yres_virtual = par->yres_virtual; else - /* yres_virtual==0 means use maximum */ + /* yres_virtual == 0 means use maximum */ var->yres_virtual = screen_len / linelen; - } - else { + } else { if (hwscroll < 0) var->yres_virtual = 2 * var->yres; else - var->yres_virtual=var->yres+hwscroll * 16; + var->yres_virtual = var->yres + hwscroll * 16; } - var->xoffset=0; /* TODO change this */ + var->xoffset = 0; /* TODO change this */ /* hdX-offsets */ prescale = hxx_prescale(hw); @@ -1402,8 +1517,7 @@ static int falcon_encode_var( struct fb_var_screeninfo *var, if (hw->f_shift & 0x100) { hde_off = 0; hdb_off = (base_off + 16 * plen) + prescale; - } - else { + } else { hde_off = ((128 / var->bits_per_pixel + 2) * plen); if (hw->ste_mode) hdb_off = (64 + base_off + (128 / var->bits_per_pixel + 2) * plen) @@ -1415,8 +1529,8 @@ static int falcon_encode_var( struct fb_var_screeninfo *var, /* Right margin includes hsync */ var->left_margin = hdb_off + prescale * ((hw->hdb & 0x1ff) - - (hw->hdb & 0x200 ? 2+hw->hht : 0)); - if (hw->ste_mode || mon_type!=F_MON_VGA) + (hw->hdb & 0x200 ? 2 + hw->hht : 0)); + if (hw->ste_mode || mon_type != F_MON_VGA) var->right_margin = prescale * (hw->hht + 2 - hw->hde) - hde_off; else /* can't use this in ste_mode, because hbb is +1 off */ @@ -1424,15 +1538,14 @@ static int falcon_encode_var( struct fb_var_screeninfo *var, var->hsync_len = prescale * (hw->hht + 2 - hw->hss); /* Lower margin includes vsync */ - var->upper_margin = hw->vdb / 2 ; /* round down to full lines */ - var->lower_margin = (hw->vft+1 - hw->vde + 1) / 2; /* round up */ - var->vsync_len = (hw->vft+1 - hw->vss + 1) / 2; /* round up */ + var->upper_margin = hw->vdb / 2; /* round down to full lines */ + var->lower_margin = (hw->vft + 1 - hw->vde + 1) / 2; /* round up */ + var->vsync_len = (hw->vft + 1 - hw->vss + 1) / 2; /* round up */ if (var->vmode & FB_VMODE_INTERLACED) { var->upper_margin *= 2; var->lower_margin *= 2; var->vsync_len *= 2; - } - else if (var->vmode & FB_VMODE_DOUBLE) { + } else if (var->vmode & FB_VMODE_DOUBLE) { var->upper_margin = (var->upper_margin + 1) / 2; var->lower_margin = (var->lower_margin + 1) / 2; var->vsync_len = (var->vsync_len + 1) / 2; @@ -1447,20 +1560,19 @@ static int falcon_encode_var( struct fb_var_screeninfo *var, var->lower_margin -= var->vsync_len; if (screen_base) - var->yoffset=(par->screen_base - screen_base)/linelen; + var->yoffset = (par->screen_base - screen_base) / linelen; else - var->yoffset=0; - var->nonstd=0; /* what is this for? */ - var->activate=0; + var->yoffset = 0; + var->nonstd = 0; /* what is this for? */ + var->activate = 0; return 0; } - -static int f_change_mode = 0; +static int f_change_mode; static struct falcon_hw f_new_mode; -static int f_pan_display = 0; +static int f_pan_display; -static void falcon_get_par( struct atafb_par *par ) +static void falcon_get_par(struct atafb_par *par) { unsigned long addr; struct falcon_hw *hw = &par->hw.falcon; @@ -1492,12 +1604,12 @@ static void falcon_get_par( struct atafb_par *par ) par->screen_base = phys_to_virt(addr); /* derived parameters */ - hw->ste_mode = (hw->f_shift & 0x510)==0 && hw->st_shift==0x100; + hw->ste_mode = (hw->f_shift & 0x510) == 0 && hw->st_shift == 0x100; hw->mono = (hw->f_shift & 0x400) || - ((hw->f_shift & 0x510)==0 && hw->st_shift==0x200); + ((hw->f_shift & 0x510) == 0 && hw->st_shift == 0x200); } -static void falcon_set_par( struct atafb_par *par ) +static void falcon_set_par(struct atafb_par *par) { f_change_mode = 0; @@ -1519,8 +1631,7 @@ static void falcon_set_par( struct atafb_par *par ) f_change_mode = 1; } - -static irqreturn_t falcon_vbl_switcher( int irq, void *dummy ) +static irqreturn_t falcon_vbl_switcher(int irq, void *dummy) { struct falcon_hw *hw = &f_new_mode; @@ -1529,11 +1640,10 @@ static irqreturn_t falcon_vbl_switcher( int irq, void *dummy ) if (hw->sync & 0x1) { /* Enable external pixelclock. This code only for ScreenWonder */ - *(volatile unsigned short*)0xffff9202 = 0xffbf; - } - else { + *(volatile unsigned short *)0xffff9202 = 0xffbf; + } else { /* Turn off external clocks. Read sets all output bits to 1. */ - *(volatile unsigned short*)0xffff9202; + *(volatile unsigned short *)0xffff9202; } shifter.syncmode = hw->sync; @@ -1550,15 +1660,14 @@ static irqreturn_t falcon_vbl_switcher( int irq, void *dummy ) videl.vde = hw->vde; videl.vss = hw->vss; - videl.f_shift = 0; /* write enables Falcon palette, 0: 4 planes */ + videl.f_shift = 0; /* write enables Falcon palette, 0: 4 planes */ if (hw->ste_mode) { - videl.st_shift = hw->st_shift; /* write enables STE palette */ - } - else { + videl.st_shift = hw->st_shift; /* write enables STE palette */ + } else { /* IMPORTANT: - * set st_shift 0, so we can tell the screen-depth if f_shift==0. + * set st_shift 0, so we can tell the screen-depth if f_shift == 0. * Writing 0 to f_shift enables 4 plane Falcon mode but - * doesn't set st_shift. st_shift!=0 (!=4planes) is impossible + * doesn't set st_shift. st_shift != 0 (!= 4planes) is impossible * with Falcon palette. */ videl.st_shift = 0; @@ -1580,12 +1689,13 @@ static irqreturn_t falcon_vbl_switcher( int irq, void *dummy ) return IRQ_HANDLED; } - -static int falcon_pan_display( struct fb_var_screeninfo *var, - struct atafb_par *par ) +static int falcon_pan_display(struct fb_var_screeninfo *var, + struct fb_info *info) { + struct atafb_par *par = (struct atafb_par *)info->par; + int xoffset; - int bpp = fb_display[fb_info.currcon].var.bits_per_pixel; + int bpp = info->var.bits_per_pixel; if (bpp == 1) var->xoffset = up(var->xoffset, 32); @@ -1596,45 +1706,24 @@ static int falcon_pan_display( struct fb_var_screeninfo *var, var->xoffset = up(var->xoffset, 2); } par->hw.falcon.line_offset = bpp * - (fb_display[fb_info.currcon].var.xres_virtual - fb_display[fb_info.currcon].var.xres) / 16; + (info->var.xres_virtual - info->var.xres) / 16; if (par->hw.falcon.xoffset) par->hw.falcon.line_offset -= bpp; xoffset = var->xoffset - par->hw.falcon.xoffset; par->screen_base = screen_base + - (var->yoffset * fb_display[fb_info.currcon].var.xres_virtual + xoffset) * bpp / 8; + (var->yoffset * info->var.xres_virtual + xoffset) * bpp / 8; if (fbhw->set_screen_base) - fbhw->set_screen_base (par->screen_base); + fbhw->set_screen_base(par->screen_base); else - return -EINVAL; /* shouldn't happen */ + return -EINVAL; /* shouldn't happen */ f_pan_display = 1; return 0; } - -static int falcon_getcolreg( unsigned regno, unsigned *red, - unsigned *green, unsigned *blue, - unsigned *transp, struct fb_info *info ) -{ unsigned long col; - - if (regno > 255) - return 1; - /* This works in STE-mode (with 4bit/color) since f030_col-registers - * hold up to 6bit/color. - * Even with hicolor r/g/b=5/6/5 bit! - */ - col = f030_col[regno]; - *red = (col >> 16) & 0xff00; - *green = (col >> 8) & 0xff00; - *blue = (col << 8) & 0xff00; - *transp = 0; - return 0; -} - - -static int falcon_setcolreg( unsigned regno, unsigned red, - unsigned green, unsigned blue, - unsigned transp, struct fb_info *info ) +static int falcon_setcolreg(unsigned int regno, unsigned int red, + unsigned int green, unsigned int blue, + unsigned int transp, struct fb_info *info) { if (regno > 255) return 1; @@ -1655,13 +1744,12 @@ static int falcon_setcolreg( unsigned regno, unsigned red, return 0; } - -static int falcon_blank( int blank_mode ) +static int falcon_blank(int blank_mode) { -/* ++guenther: we can switch off graphics by changing VDB and VDE, - * so VIDEL doesn't hog the bus while saving. - * (this may affect usleep()). - */ + /* ++guenther: we can switch off graphics by changing VDB and VDE, + * so VIDEL doesn't hog the bus while saving. + * (this may affect usleep()). + */ int vdb, vss, hbe, hss; if (mon_type == F_MON_SM) /* this doesn't work on SM124 */ @@ -1694,14 +1782,13 @@ static int falcon_blank( int blank_mode ) return 0; } - -static int falcon_detect( void ) +static int falcon_detect(void) { struct atafb_par par; unsigned char fhw; /* Determine connected monitor and set monitor parameters */ - fhw = *(unsigned char*)0xffff8006; + fhw = *(unsigned char *)0xffff8006; mon_type = fhw >> 6 & 0x3; /* bit 1 of fhw: 1=32 bit ram bus, 0=16 bit */ f030_bus_width = fhw << 6 & 0x80; @@ -1715,7 +1802,7 @@ static int falcon_detect( void ) case F_MON_SC: case F_MON_TV: /* PAL...NTSC */ - fb_info.monspecs.vfmin = 49; /* not 50, since TOS defaults to 49.9x Hz */ + fb_info.monspecs.vfmin = 49; /* not 50, since TOS defaults to 49.9x Hz */ fb_info.monspecs.vfmax = 60; fb_info.monspecs.hfmin = 15620; fb_info.monspecs.hfmax = 15755; @@ -1740,13 +1827,12 @@ static int falcon_detect( void ) #ifdef ATAFB_STE -static int stste_encode_fix( struct fb_fix_screeninfo *fix, - struct atafb_par *par ) - +static int stste_encode_fix(struct fb_fix_screeninfo *fix, + struct atafb_par *par) { int mode; - strcpy(fix->id,"Atari Builtin"); + strcpy(fix->id, "Atari Builtin"); fix->smem_start = (unsigned long)real_screen_base; fix->smem_len = screen_len; fix->type = FB_TYPE_INTERLEAVED_PLANES; @@ -1771,43 +1857,40 @@ static int stste_encode_fix( struct fb_fix_screeninfo *fix, return 0; } - -static int stste_decode_var( struct fb_var_screeninfo *var, - struct atafb_par *par ) +static int stste_decode_var(struct fb_var_screeninfo *var, + struct atafb_par *par) { - int xres=var->xres; - int yres=var->yres; - int bpp=var->bits_per_pixel; + int xres = var->xres; + int yres = var->yres; + int bpp = var->bits_per_pixel; int linelen; int yres_virtual = var->yres_virtual; if (mono_moni) { if (bpp > 1 || xres > sttt_xres || yres > st_yres) return -EINVAL; - par->hw.st.mode=ST_HIGH; - xres=sttt_xres; - yres=st_yres; - bpp=1; + par->hw.st.mode = ST_HIGH; + xres = sttt_xres; + yres = st_yres; + bpp = 1; } else { if (bpp > 4 || xres > sttt_xres || yres > st_yres) return -EINVAL; if (bpp > 2) { - if (xres > sttt_xres/2 || yres > st_yres/2) + if (xres > sttt_xres / 2 || yres > st_yres / 2) return -EINVAL; - par->hw.st.mode=ST_LOW; - xres=sttt_xres/2; - yres=st_yres/2; - bpp=4; - } - else if (bpp > 1) { - if (xres > sttt_xres || yres > st_yres/2) + par->hw.st.mode = ST_LOW; + xres = sttt_xres / 2; + yres = st_yres / 2; + bpp = 4; + } else if (bpp > 1) { + if (xres > sttt_xres || yres > st_yres / 2) return -EINVAL; - par->hw.st.mode=ST_MID; - xres=sttt_xres; - yres=st_yres/2; - bpp=2; - } - else + par->hw.st.mode = ST_MID; + xres = sttt_xres; + yres = st_yres / 2; + bpp = 2; + } else return -EINVAL; } if (yres_virtual <= 0) @@ -1815,10 +1898,10 @@ static int stste_decode_var( struct fb_var_screeninfo *var, else if (yres_virtual < yres) yres_virtual = yres; if (var->sync & FB_SYNC_EXT) - par->hw.st.sync=(par->hw.st.sync & ~1) | 1; + par->hw.st.sync = (par->hw.st.sync & ~1) | 1; else - par->hw.st.sync=(par->hw.st.sync & ~1); - linelen=xres*bpp/8; + par->hw.st.sync = (par->hw.st.sync & ~1); + linelen = xres * bpp / 8; if (yres_virtual * linelen > screen_len && screen_len) return -EINVAL; if (yres * linelen > screen_len && screen_len) @@ -1826,93 +1909,91 @@ static int stste_decode_var( struct fb_var_screeninfo *var, if (var->yoffset + yres > yres_virtual && yres_virtual) return -EINVAL; par->yres_virtual = yres_virtual; - par->screen_base=screen_base+ var->yoffset*linelen; + par->screen_base = screen_base + var->yoffset * linelen; return 0; } -static int stste_encode_var( struct fb_var_screeninfo *var, - struct atafb_par *par ) +static int stste_encode_var(struct fb_var_screeninfo *var, + struct atafb_par *par) { int linelen; memset(var, 0, sizeof(struct fb_var_screeninfo)); - var->red.offset=0; + var->red.offset = 0; var->red.length = ATARIHW_PRESENT(EXTD_SHIFTER) ? 4 : 3; - var->red.msb_right=0; - var->grayscale=0; + var->red.msb_right = 0; + var->grayscale = 0; - var->pixclock=31041; - var->left_margin=120; /* these are incorrect */ - var->right_margin=100; - var->upper_margin=8; - var->lower_margin=16; - var->hsync_len=140; - var->vsync_len=30; + var->pixclock = 31041; + var->left_margin = 120; /* these are incorrect */ + var->right_margin = 100; + var->upper_margin = 8; + var->lower_margin = 16; + var->hsync_len = 140; + var->vsync_len = 30; - var->height=-1; - var->width=-1; + var->height = -1; + var->width = -1; if (!(par->hw.st.sync & 1)) - var->sync=0; + var->sync = 0; else - var->sync=FB_SYNC_EXT; + var->sync = FB_SYNC_EXT; switch (par->hw.st.mode & 3) { case ST_LOW: - var->xres=sttt_xres/2; - var->yres=st_yres/2; - var->bits_per_pixel=4; + var->xres = sttt_xres / 2; + var->yres = st_yres / 2; + var->bits_per_pixel = 4; break; case ST_MID: - var->xres=sttt_xres; - var->yres=st_yres/2; - var->bits_per_pixel=2; + var->xres = sttt_xres; + var->yres = st_yres / 2; + var->bits_per_pixel = 2; break; case ST_HIGH: - var->xres=sttt_xres; - var->yres=st_yres; - var->bits_per_pixel=1; + var->xres = sttt_xres; + var->yres = st_yres; + var->bits_per_pixel = 1; break; - } - var->blue=var->green=var->red; - var->transp.offset=0; - var->transp.length=0; - var->transp.msb_right=0; - var->xres_virtual=sttt_xres_virtual; - linelen=var->xres_virtual * var->bits_per_pixel / 8; - ovsc_addlen=linelen*(sttt_yres_virtual - st_yres); - - if (! use_hwscroll) - var->yres_virtual=var->yres; + } + var->blue = var->green = var->red; + var->transp.offset = 0; + var->transp.length = 0; + var->transp.msb_right = 0; + var->xres_virtual = sttt_xres_virtual; + linelen = var->xres_virtual * var->bits_per_pixel / 8; + ovsc_addlen = linelen * (sttt_yres_virtual - st_yres); + + if (!use_hwscroll) + var->yres_virtual = var->yres; else if (screen_len) { if (par->yres_virtual) var->yres_virtual = par->yres_virtual; else - /* yres_virtual==0 means use maximum */ + /* yres_virtual == 0 means use maximum */ var->yres_virtual = screen_len / linelen; - } - else { + } else { if (hwscroll < 0) var->yres_virtual = 2 * var->yres; else - var->yres_virtual=var->yres+hwscroll * 16; + var->yres_virtual = var->yres + hwscroll * 16; } - var->xoffset=0; + var->xoffset = 0; if (screen_base) - var->yoffset=(par->screen_base - screen_base)/linelen; + var->yoffset = (par->screen_base - screen_base) / linelen; else - var->yoffset=0; - var->nonstd=0; - var->activate=0; - var->vmode=FB_VMODE_NONINTERLACED; + var->yoffset = 0; + var->nonstd = 0; + var->activate = 0; + var->vmode = FB_VMODE_NONINTERLACED; return 0; } - -static void stste_get_par( struct atafb_par *par ) +static void stste_get_par(struct atafb_par *par) { unsigned long addr; - par->hw.st.mode=shifter_tt.st_shiftmode; - par->hw.st.sync=shifter.syncmode; + par->hw.st.mode = shifter_tt.st_shiftmode; + par->hw.st.sync = shifter.syncmode; addr = ((shifter.bas_hi & 0xff) << 16) | ((shifter.bas_md & 0xff) << 8); if (ATARIHW_PRESENT(EXTD_SHIFTER)) @@ -1920,55 +2001,18 @@ static void stste_get_par( struct atafb_par *par ) par->screen_base = phys_to_virt(addr); } -static void stste_set_par( struct atafb_par *par ) +static void stste_set_par(struct atafb_par *par) { - shifter_tt.st_shiftmode=par->hw.st.mode; - shifter.syncmode=par->hw.st.sync; + shifter_tt.st_shiftmode = par->hw.st.mode; + shifter.syncmode = par->hw.st.sync; /* only set screen_base if really necessary */ if (current_par.screen_base != par->screen_base) fbhw->set_screen_base(par->screen_base); } - -static int stste_getcolreg(unsigned regno, unsigned *red, - unsigned *green, unsigned *blue, - unsigned *transp, struct fb_info *info) -{ - unsigned col, t; - - if (regno > 15) - return 1; - col = shifter_tt.color_reg[regno]; - if (ATARIHW_PRESENT(EXTD_SHIFTER)) { - t = ((col >> 7) & 0xe) | ((col >> 11) & 1); - t |= t << 4; - *red = t | (t << 8); - t = ((col >> 3) & 0xe) | ((col >> 7) & 1); - t |= t << 4; - *green = t | (t << 8); - t = ((col << 1) & 0xe) | ((col >> 3) & 1); - t |= t << 4; - *blue = t | (t << 8); - } - else { - t = (col >> 7) & 0xe; - t |= t << 4; - *red = t | (t << 8); - t = (col >> 3) & 0xe; - t |= t << 4; - *green = t | (t << 8); - t = (col << 1) & 0xe; - t |= t << 4; - *blue = t | (t << 8); - } - *transp = 0; - return 0; -} - - -static int stste_setcolreg(unsigned regno, unsigned red, - unsigned green, unsigned blue, - unsigned transp, struct fb_info *info) +static int stste_setcolreg(unsigned int regno, unsigned int red, + unsigned int green, unsigned int blue, + unsigned int transp, struct fb_info *info) { if (regno > 15) return 1; @@ -1988,10 +2032,9 @@ static int stste_setcolreg(unsigned regno, unsigned red, return 0; } - -static int stste_detect( void ) - -{ struct atafb_par par; +static int stste_detect(void) +{ + struct atafb_par par; /* Determine the connected monitor: The DMA sound must be * disabled before reading the MFP GPIP, because the Sound @@ -1999,7 +2042,7 @@ static int stste_detect( void ) */ if (ATARIHW_PRESENT(PCM_8BIT)) { tt_dmasnd.ctrl = DMASND_CTRL_OFF; - udelay(20); /* wait a while for things to settle down */ + udelay(20); /* wait a while for things to settle down */ } mono_moni = (mfp.par_dt_reg & 0x80) == 0; @@ -2014,12 +2057,12 @@ static int stste_detect( void ) static void stste_set_screen_base(void *s_base) { unsigned long addr; - addr= virt_to_phys(s_base); + addr = virt_to_phys(s_base); /* Setup Screen Memory */ - shifter.bas_hi=(unsigned char) ((addr & 0xff0000) >> 16); - shifter.bas_md=(unsigned char) ((addr & 0x00ff00) >> 8); + shifter.bas_hi = (unsigned char)((addr & 0xff0000) >> 16); + shifter.bas_md = (unsigned char)((addr & 0x00ff00) >> 8); if (ATARIHW_PRESENT(EXTD_SHIFTER)) - shifter.bas_lo=(unsigned char) (addr & 0x0000ff); + shifter.bas_lo = (unsigned char)(addr & 0x0000ff); } #endif /* ATAFB_STE */ @@ -2045,51 +2088,49 @@ static void stste_set_screen_base(void *s_base) /* SWITCH_ACIA may be used for Falcon (ScreenBlaster III internal!) */ static void st_ovsc_switch(void) { - unsigned long flags; - register unsigned char old, new; + unsigned long flags; + register unsigned char old, new; - if (!(atari_switches & ATARI_SWITCH_OVSC_MASK)) - return; - local_irq_save(flags); - - mfp.tim_ct_b = 0x10; - mfp.active_edge |= 8; - mfp.tim_ct_b = 0; - mfp.tim_dt_b = 0xf0; - mfp.tim_ct_b = 8; - while (mfp.tim_dt_b > 1) /* TOS does it this way, don't ask why */ - ; - new = mfp.tim_dt_b; - do { - udelay(LINE_DELAY); - old = new; + if (!(atari_switches & ATARI_SWITCH_OVSC_MASK)) + return; + local_irq_save(flags); + + mfp.tim_ct_b = 0x10; + mfp.active_edge |= 8; + mfp.tim_ct_b = 0; + mfp.tim_dt_b = 0xf0; + mfp.tim_ct_b = 8; + while (mfp.tim_dt_b > 1) /* TOS does it this way, don't ask why */ + ; new = mfp.tim_dt_b; - } while (old != new); - mfp.tim_ct_b = 0x10; - udelay(SYNC_DELAY); - - if (atari_switches & ATARI_SWITCH_OVSC_IKBD) - acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID | ACIA_RIE; - if (atari_switches & ATARI_SWITCH_OVSC_MIDI) - acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID; - if (atari_switches & (ATARI_SWITCH_OVSC_SND6|ATARI_SWITCH_OVSC_SND7)) { - sound_ym.rd_data_reg_sel = 14; - sound_ym.wd_data = sound_ym.rd_data_reg_sel | - ((atari_switches&ATARI_SWITCH_OVSC_SND6) ? 0x40:0) | - ((atari_switches&ATARI_SWITCH_OVSC_SND7) ? 0x80:0); - } - local_irq_restore(flags); + do { + udelay(LINE_DELAY); + old = new; + new = mfp.tim_dt_b; + } while (old != new); + mfp.tim_ct_b = 0x10; + udelay(SYNC_DELAY); + + if (atari_switches & ATARI_SWITCH_OVSC_IKBD) + acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID | ACIA_RIE; + if (atari_switches & ATARI_SWITCH_OVSC_MIDI) + acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID; + if (atari_switches & (ATARI_SWITCH_OVSC_SND6|ATARI_SWITCH_OVSC_SND7)) { + sound_ym.rd_data_reg_sel = 14; + sound_ym.wd_data = sound_ym.rd_data_reg_sel | + ((atari_switches & ATARI_SWITCH_OVSC_SND6) ? 0x40:0) | + ((atari_switches & ATARI_SWITCH_OVSC_SND7) ? 0x80:0); + } + local_irq_restore(flags); } /* ------------------- External Video ---------------------- */ #ifdef ATAFB_EXT -static int ext_encode_fix( struct fb_fix_screeninfo *fix, - struct atafb_par *par ) - +static int ext_encode_fix(struct fb_fix_screeninfo *fix, struct atafb_par *par) { - strcpy(fix->id,"Unknown Extern"); + strcpy(fix->id, "Unknown Extern"); fix->smem_start = (unsigned long)external_addr; fix->smem_len = PAGE_ALIGN(external_len); if (external_depth == 1) { @@ -2099,31 +2140,29 @@ static int ext_encode_fix( struct fb_fix_screeninfo *fix, fix->visual = (external_pmode == FB_TYPE_INTERLEAVED_PLANES || external_pmode == FB_TYPE_PACKED_PIXELS) ? - FB_VISUAL_MONO10 : - FB_VISUAL_MONO01; - } - else { + FB_VISUAL_MONO10 : FB_VISUAL_MONO01; + } else { /* Use STATIC if we don't know how to access color registers */ int visual = external_vgaiobase ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_STATIC_PSEUDOCOLOR; switch (external_pmode) { - case -1: /* truecolor */ - fix->type=FB_TYPE_PACKED_PIXELS; - fix->visual=FB_VISUAL_TRUECOLOR; + case -1: /* truecolor */ + fix->type = FB_TYPE_PACKED_PIXELS; + fix->visual = FB_VISUAL_TRUECOLOR; break; - case FB_TYPE_PACKED_PIXELS: - fix->type=FB_TYPE_PACKED_PIXELS; - fix->visual=visual; + case FB_TYPE_PACKED_PIXELS: + fix->type = FB_TYPE_PACKED_PIXELS; + fix->visual = visual; break; - case FB_TYPE_PLANES: - fix->type=FB_TYPE_PLANES; - fix->visual=visual; + case FB_TYPE_PLANES: + fix->type = FB_TYPE_PLANES; + fix->visual = visual; break; - case FB_TYPE_INTERLEAVED_PLANES: - fix->type=FB_TYPE_INTERLEAVED_PLANES; - fix->type_aux=2; - fix->visual=visual; + case FB_TYPE_INTERLEAVED_PLANES: + fix->type = FB_TYPE_INTERLEAVED_PLANES; + fix->type_aux = 2; + fix->visual = visual; break; } } @@ -2134,137 +2173,112 @@ static int ext_encode_fix( struct fb_fix_screeninfo *fix, return 0; } - -static int ext_decode_var( struct fb_var_screeninfo *var, - struct atafb_par *par ) +static int ext_decode_var(struct fb_var_screeninfo *var, struct atafb_par *par) { struct fb_var_screeninfo *myvar = &atafb_predefined[0]; - + if (var->bits_per_pixel > myvar->bits_per_pixel || - var->xres > myvar->xres || - var->xres_virtual > myvar->xres_virtual || - var->yres > myvar->yres || - var->xoffset > 0 || - var->yoffset > 0) + var->xres > myvar->xres || + var->xres_virtual > myvar->xres_virtual || + var->yres > myvar->yres || + var->xoffset > 0 || + var->yoffset > 0) return -EINVAL; return 0; } - -static int ext_encode_var( struct fb_var_screeninfo *var, - struct atafb_par *par ) +static int ext_encode_var(struct fb_var_screeninfo *var, struct atafb_par *par) { memset(var, 0, sizeof(struct fb_var_screeninfo)); - var->red.offset=0; - var->red.length=(external_pmode == -1) ? external_depth/3 : + var->red.offset = 0; + var->red.length = (external_pmode == -1) ? external_depth / 3 : (external_vgaiobase ? external_bitspercol : 0); - var->red.msb_right=0; - var->grayscale=0; + var->red.msb_right = 0; + var->grayscale = 0; - var->pixclock=31041; - var->left_margin=120; /* these are surely incorrect */ - var->right_margin=100; - var->upper_margin=8; - var->lower_margin=16; - var->hsync_len=140; - var->vsync_len=30; + var->pixclock = 31041; + var->left_margin = 120; /* these are surely incorrect */ + var->right_margin = 100; + var->upper_margin = 8; + var->lower_margin = 16; + var->hsync_len = 140; + var->vsync_len = 30; - var->height=-1; - var->width=-1; + var->height = -1; + var->width = -1; - var->sync=0; + var->sync = 0; var->xres = external_xres; var->yres = external_yres; var->xres_virtual = external_xres_virtual; var->bits_per_pixel = external_depth; - - var->blue=var->green=var->red; - var->transp.offset=0; - var->transp.length=0; - var->transp.msb_right=0; - var->yres_virtual=var->yres; - var->xoffset=0; - var->yoffset=0; - var->nonstd=0; - var->activate=0; - var->vmode=FB_VMODE_NONINTERLACED; + + var->blue = var->green = var->red; + var->transp.offset = 0; + var->transp.length = 0; + var->transp.msb_right = 0; + var->yres_virtual = var->yres; + var->xoffset = 0; + var->yoffset = 0; + var->nonstd = 0; + var->activate = 0; + var->vmode = FB_VMODE_NONINTERLACED; return 0; } - -static void ext_get_par( struct atafb_par *par ) +static void ext_get_par(struct atafb_par *par) { par->screen_base = external_addr; } -static void ext_set_par( struct atafb_par *par ) +static void ext_set_par(struct atafb_par *par) { } #define OUTB(port,val) \ - *((unsigned volatile char *) ((port)+external_vgaiobase))=(val) + *((unsigned volatile char *) ((port)+external_vgaiobase)) = (val) #define INB(port) \ (*((unsigned volatile char *) ((port)+external_vgaiobase))) -#define DACDelay \ +#define DACDelay \ do { \ - unsigned char tmp=INB(0x3da); \ - tmp=INB(0x3da); \ + unsigned char tmp = INB(0x3da); \ + tmp = INB(0x3da); \ } while (0) -static int ext_getcolreg( unsigned regno, unsigned *red, - unsigned *green, unsigned *blue, - unsigned *transp, struct fb_info *info ) +static int ext_setcolreg(unsigned int regno, unsigned int red, + unsigned int green, unsigned int blue, + unsigned int transp, struct fb_info *info) { - if (! external_vgaiobase) + unsigned char colmask = (1 << external_bitspercol) - 1; + + if (!external_vgaiobase) return 1; - *red = ext_color[regno].red; - *green = ext_color[regno].green; - *blue = ext_color[regno].blue; - *transp=0; - return 0; -} - -static int ext_setcolreg( unsigned regno, unsigned red, - unsigned green, unsigned blue, - unsigned transp, struct fb_info *info ) + switch (external_card_type) { + case IS_VGA: + OUTB(0x3c8, regno); + DACDelay; + OUTB(0x3c9, red & colmask); + DACDelay; + OUTB(0x3c9, green & colmask); + DACDelay; + OUTB(0x3c9, blue & colmask); + DACDelay; + return 0; -{ unsigned char colmask = (1 << external_bitspercol) - 1; + case IS_MV300: + OUTB((MV300_reg[regno] << 2) + 1, red); + OUTB((MV300_reg[regno] << 2) + 1, green); + OUTB((MV300_reg[regno] << 2) + 1, blue); + return 0; - if (! external_vgaiobase) + default: return 1; - - ext_color[regno].red = red; - ext_color[regno].green = green; - ext_color[regno].blue = blue; - - switch (external_card_type) { - case IS_VGA: - OUTB(0x3c8, regno); - DACDelay; - OUTB(0x3c9, red & colmask); - DACDelay; - OUTB(0x3c9, green & colmask); - DACDelay; - OUTB(0x3c9, blue & colmask); - DACDelay; - return 0; - - case IS_MV300: - OUTB((MV300_reg[regno] << 2)+1, red); - OUTB((MV300_reg[regno] << 2)+1, green); - OUTB((MV300_reg[regno] << 2)+1, blue); - return 0; - - default: - return 1; - } + } } - - -static int ext_detect( void ) +static int ext_detect(void) { struct fb_var_screeninfo *myvar = &atafb_predefined[0]; struct atafb_par dummy_par; @@ -2284,213 +2298,182 @@ static int ext_detect( void ) static void set_screen_base(void *s_base) { unsigned long addr; - addr= virt_to_phys(s_base); + + addr = virt_to_phys(s_base); /* Setup Screen Memory */ - shifter.bas_hi=(unsigned char) ((addr & 0xff0000) >> 16); - shifter.bas_md=(unsigned char) ((addr & 0x00ff00) >> 8); - shifter.bas_lo=(unsigned char) (addr & 0x0000ff); + shifter.bas_hi = (unsigned char)((addr & 0xff0000) >> 16); + shifter.bas_md = (unsigned char)((addr & 0x00ff00) >> 8); + shifter.bas_lo = (unsigned char)(addr & 0x0000ff); } - -static int pan_display( struct fb_var_screeninfo *var, - struct atafb_par *par ) +static int pan_display(struct fb_var_screeninfo *var, struct fb_info *info) { + struct atafb_par *par = (struct atafb_par *)info->par; + if (!fbhw->set_screen_base || - (!ATARIHW_PRESENT(EXTD_SHIFTER) && var->xoffset)) + (!ATARIHW_PRESENT(EXTD_SHIFTER) && var->xoffset)) return -EINVAL; var->xoffset = up(var->xoffset, 16); par->screen_base = screen_base + - (var->yoffset * fb_display[fb_info.currcon].var.xres_virtual + var->xoffset) - * fb_display[fb_info.currcon].var.bits_per_pixel / 8; - fbhw->set_screen_base (par->screen_base); + (var->yoffset * info->var.xres_virtual + var->xoffset) + * info->var.bits_per_pixel / 8; + fbhw->set_screen_base(par->screen_base); return 0; } - /* ------------ Interfaces to hardware functions ------------ */ - #ifdef ATAFB_TT static struct fb_hwswitch tt_switch = { - tt_detect, tt_encode_fix, tt_decode_var, tt_encode_var, - tt_get_par, tt_set_par, tt_getcolreg, - set_screen_base, NULL, pan_display + .detect = tt_detect, + .encode_fix = tt_encode_fix, + .decode_var = tt_decode_var, + .encode_var = tt_encode_var, + .get_par = tt_get_par, + .set_par = tt_set_par, + .set_screen_base = set_screen_base, + .pan_display = pan_display, }; #endif #ifdef ATAFB_FALCON static struct fb_hwswitch falcon_switch = { - falcon_detect, falcon_encode_fix, falcon_decode_var, falcon_encode_var, - falcon_get_par, falcon_set_par, falcon_getcolreg, - set_screen_base, falcon_blank, falcon_pan_display + .detect = falcon_detect, + .encode_fix = falcon_encode_fix, + .decode_var = falcon_decode_var, + .encode_var = falcon_encode_var, + .get_par = falcon_get_par, + .set_par = falcon_set_par, + .set_screen_base = set_screen_base, + .blank = falcon_blank, + .pan_display = falcon_pan_display, }; #endif #ifdef ATAFB_STE static struct fb_hwswitch st_switch = { - stste_detect, stste_encode_fix, stste_decode_var, stste_encode_var, - stste_get_par, stste_set_par, stste_getcolreg, - stste_set_screen_base, NULL, pan_display + .detect = stste_detect, + .encode_fix = stste_encode_fix, + .decode_var = stste_decode_var, + .encode_var = stste_encode_var, + .get_par = stste_get_par, + .set_par = stste_set_par, + .set_screen_base = stste_set_screen_base, + .pan_display = pan_display }; #endif #ifdef ATAFB_EXT static struct fb_hwswitch ext_switch = { - ext_detect, ext_encode_fix, ext_decode_var, ext_encode_var, - ext_get_par, ext_set_par, ext_getcolreg, NULL, NULL, NULL + .detect = ext_detect, + .encode_fix = ext_encode_fix, + .decode_var = ext_decode_var, + .encode_var = ext_encode_var, + .get_par = ext_get_par, + .set_par = ext_set_par, }; #endif - - -static void atafb_get_par( struct atafb_par *par ) +static void ata_get_par(struct atafb_par *par) { - if (current_par_valid) { - *par=current_par; - } + if (current_par_valid) + *par = current_par; else fbhw->get_par(par); } - -static void atafb_set_par( struct atafb_par *par ) +static void ata_set_par(struct atafb_par *par) { fbhw->set_par(par); - current_par=*par; - current_par_valid=1; + current_par = *par; + current_par_valid = 1; } - /* =========================================================== */ /* ============== Hardware Independent Functions ============= */ /* =========================================================== */ - /* used for hardware scrolling */ -static int -fb_update_var(int con, struct fb_info *info) -{ - int off=fb_display[con].var.yoffset*fb_display[con].var.xres_virtual* - fb_display[con].var.bits_per_pixel>>3; - - current_par.screen_base=screen_base + off; - - if (fbhw->set_screen_base) - fbhw->set_screen_base(current_par.screen_base); - return 0; -} - -static int -do_fb_set_var(struct fb_var_screeninfo *var, int isactive) +static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive) { - int err,activate; + int err, activate; struct atafb_par par; - if ((err=fbhw->decode_var(var, &par))) + + err = fbhw->decode_var(var, &par); + if (err) return err; - activate=var->activate; + activate = var->activate; if (((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) && isactive) - atafb_set_par(&par); + ata_set_par(&par); fbhw->encode_var(var, &par); - var->activate=activate; + var->activate = activate; return 0; } -static int -atafb_get_fix(struct fb_fix_screeninfo *fix, int con, struct fb_info *info) +static int atafb_get_fix(struct fb_fix_screeninfo *fix, struct fb_info *info) { struct atafb_par par; - if (con == -1) - atafb_get_par(&par); - else { - int err; - if ((err=fbhw->decode_var(&fb_display[con].var,&par))) - return err; - } + int err; + // Get fix directly (case con == -1 before)?? + err = fbhw->decode_var(&info->var, &par); + if (err) + return err; memset(fix, 0, sizeof(struct fb_fix_screeninfo)); return fbhw->encode_fix(fix, &par); } - -static int -atafb_get_var(struct fb_var_screeninfo *var, int con, struct fb_info *info) + +static int atafb_get_var(struct fb_var_screeninfo *var, struct fb_info *info) { struct atafb_par par; - if (con == -1) { - atafb_get_par(&par); - fbhw->encode_var(var, &par); - } - else - *var=fb_display[con].var; + + ata_get_par(&par); + fbhw->encode_var(var, &par); + return 0; } -static void -atafb_set_disp(int con, struct fb_info *info) +// No longer called by fbcon! +// Still called by set_var internally + +static void atafb_set_disp(struct fb_info *info) { - struct fb_fix_screeninfo fix; - struct fb_var_screeninfo var; - struct display *display; + atafb_get_var(&info->var, info); + atafb_get_fix(&info->fix, info); - if (con >= 0) - display = &fb_display[con]; - else - display = &disp; /* used during initialization */ - - atafb_get_fix(&fix, con, info); - atafb_get_var(&var, con, info); - if (con == -1) - con=0; - info->screen_base = (void *)fix.smem_start; - 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; - if (fix.visual != FB_VISUAL_PSEUDOCOLOR && - fix.visual != FB_VISUAL_DIRECTCOLOR) - display->can_soft_blank = 0; - else - display->can_soft_blank = 1; - display->inverse = - (fix.visual == FB_VISUAL_MONO01 ? !inverse : inverse); - switch (fix.type) { - case FB_TYPE_INTERLEAVED_PLANES: - switch (var.bits_per_pixel) { -#ifdef FBCON_HAS_IPLAN2P2 - case 2: - display->dispsw = &fbcon_iplan2p2; + info->screen_base = (void *)info->fix.smem_start; + + switch (info->fix.type) { + case FB_TYPE_INTERLEAVED_PLANES: + switch (info->var.bits_per_pixel) { + case 2: + // display->dispsw = &fbcon_iplan2p2; break; -#endif -#ifdef FBCON_HAS_IPLAN2P4 - case 4: - display->dispsw = &fbcon_iplan2p4; + case 4: + // display->dispsw = &fbcon_iplan2p4; break; -#endif -#ifdef FBCON_HAS_IPLAN2P8 - case 8: - display->dispsw = &fbcon_iplan2p8; + case 8: + // display->dispsw = &fbcon_iplan2p8; break; -#endif } break; - case FB_TYPE_PACKED_PIXELS: - switch (var.bits_per_pixel) { + case FB_TYPE_PACKED_PIXELS: + switch (info->var.bits_per_pixel) { #ifdef FBCON_HAS_MFB - case 1: - display->dispsw = &fbcon_mfb; + case 1: + // display->dispsw = &fbcon_mfb; break; #endif #ifdef FBCON_HAS_CFB8 - case 8: - display->dispsw = &fbcon_cfb8; + case 8: + // display->dispsw = &fbcon_cfb8; break; #endif #ifdef FBCON_HAS_CFB16 - case 16: - display->dispsw = &fbcon_cfb16; - display->dispsw_data = fbcon_cfb16_cmap; + case 16: + // display->dispsw = &fbcon_cfb16; + // display->dispsw_data = fbcon_cfb16_cmap; break; #endif } @@ -2498,74 +2481,203 @@ atafb_set_disp(int con, struct fb_info *info) } } +static int atafb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, + u_int transp, struct fb_info *info) +{ + red >>= 8; + green >>= 8; + blue >>= 8; + + return info->fbops->fb_setcolreg(regno, red, green, blue, transp, info); +} + static int -atafb_set_var(struct fb_var_screeninfo *var, int con, struct fb_info *info) +atafb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) { - int err,oldxres,oldyres,oldbpp,oldxres_virtual, - oldyres_virtual,oldyoffset; - if ((err=do_fb_set_var(var, con==info->currcon))) - return err; - if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) { - oldxres=fb_display[con].var.xres; - oldyres=fb_display[con].var.yres; - oldxres_virtual=fb_display[con].var.xres_virtual; - oldyres_virtual=fb_display[con].var.yres_virtual; - oldbpp=fb_display[con].var.bits_per_pixel; - oldyoffset=fb_display[con].var.yoffset; - fb_display[con].var=*var; - if (oldxres != var->xres || oldyres != var->yres - || oldxres_virtual != var->xres_virtual - || oldyres_virtual != var->yres_virtual - || oldbpp != var->bits_per_pixel - || oldyoffset != var->yoffset) { - atafb_set_disp(con, info); - (*fb_info.changevar)(con); - fb_alloc_cmap(&fb_display[con].cmap, 0, 0); - do_install_cmap(con, info); - } + int xoffset = var->xoffset; + int yoffset = var->yoffset; + int err; + + if (var->vmode & FB_VMODE_YWRAP) { + if (yoffset < 0 || yoffset >= info->var.yres_virtual || xoffset) + return -EINVAL; + } else { + if (xoffset + info->var.xres > info->var.xres_virtual || + yoffset + info->var.yres > info->var.yres_virtual) + return -EINVAL; } - var->activate=0; + + if (fbhw->pan_display) { + err = fbhw->pan_display(var, info); + if (err) + return err; + } else + return -EINVAL; + + info->var.xoffset = xoffset; + info->var.yoffset = yoffset; + + if (var->vmode & FB_VMODE_YWRAP) + info->var.vmode |= FB_VMODE_YWRAP; + else + info->var.vmode &= ~FB_VMODE_YWRAP; + return 0; } +/* + * generic drawing routines; imageblit needs updating for image depth > 1 + */ +#if BITS_PER_LONG == 32 +#define BYTES_PER_LONG 4 +#define SHIFT_PER_LONG 5 +#elif BITS_PER_LONG == 64 +#define BYTES_PER_LONG 8 +#define SHIFT_PER_LONG 6 +#else +#define Please update me +#endif -static int -atafb_get_cmap(struct fb_cmap *cmap, int kspc, int con, struct fb_info *info) + +static void atafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) { - if (con == info->currcon) /* current console ? */ - return fb_get_cmap(cmap, kspc, fbhw->getcolreg, info); + struct atafb_par *par = (struct atafb_par *)info->par; + int x2, y2; + u32 width, height; + + if (!rect->width || !rect->height) + return; + + /* + * We could use hardware clipping but on many cards you get around + * hardware clipping by writing to framebuffer directly. + * */ + x2 = rect->dx + rect->width; + y2 = rect->dy + rect->height; + x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual; + y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual; + width = x2 - rect->dx; + height = y2 - rect->dy; + + if (info->var.bits_per_pixel == 1) + atafb_mfb_fillrect(info, par->next_line, rect->color, + rect->dy, rect->dx, height, width); + else if (info->var.bits_per_pixel == 2) + atafb_iplan2p2_fillrect(info, par->next_line, rect->color, + rect->dy, rect->dx, height, width); + else if (info->var.bits_per_pixel == 4) + atafb_iplan2p4_fillrect(info, par->next_line, rect->color, + rect->dy, rect->dx, height, width); else - if (fb_display[con].cmap.len) /* non default colormap ? */ - fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2); - else - fb_copy_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel), - cmap, kspc ? 0 : 2); - return 0; + atafb_iplan2p8_fillrect(info, par->next_line, rect->color, + rect->dy, rect->dx, height, width); + + return; } -static int -atafb_pan_display(struct fb_var_screeninfo *var, int con, struct fb_info *info) +static void atafb_copyarea(struct fb_info *info, const struct fb_copyarea *area) { - int xoffset = var->xoffset; - int yoffset = var->yoffset; - int err; + struct atafb_par *par = (struct atafb_par *)info->par; + int x2, y2; + u32 dx, dy, sx, sy, width, height; + int rev_copy = 0; + + /* clip the destination */ + x2 = area->dx + area->width; + y2 = area->dy + area->height; + dx = area->dx > 0 ? area->dx : 0; + dy = area->dy > 0 ? area->dy : 0; + x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual; + y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual; + width = x2 - dx; + height = y2 - dy; + + /* update sx,sy */ + sx = area->sx + (dx - area->dx); + sy = area->sy + (dy - area->dy); + + /* the source must be completely inside the virtual screen */ + if (sx < 0 || sy < 0 || (sx + width) > info->var.xres_virtual || + (sy + height) > info->var.yres_virtual) + return; - if ( xoffset < 0 || xoffset + fb_display[con].var.xres > fb_display[con].var.xres_virtual - || yoffset < 0 || yoffset + fb_display[con].var.yres > fb_display[con].var.yres_virtual) - return -EINVAL; + if (dy > sy || (dy == sy && dx > sx)) { + dy += height; + sy += height; + rev_copy = 1; + } + + if (info->var.bits_per_pixel == 1) + atafb_mfb_copyarea(info, par->next_line, sy, sx, dy, dx, height, width); + else if (info->var.bits_per_pixel == 2) + atafb_iplan2p2_copyarea(info, par->next_line, sy, sx, dy, dx, height, width); + else if (info->var.bits_per_pixel == 4) + atafb_iplan2p4_copyarea(info, par->next_line, sy, sx, dy, dx, height, width); + else + atafb_iplan2p8_copyarea(info, par->next_line, sy, sx, dy, dx, height, width); - if (con == info->currcon) { - if (fbhw->pan_display) { - if ((err = fbhw->pan_display(var, ¤t_par))) - return err; + return; +} + +static void atafb_imageblit(struct fb_info *info, const struct fb_image *image) +{ + struct atafb_par *par = (struct atafb_par *)info->par; + int x2, y2; + unsigned long *dst; + int dst_idx; + const char *src; + u32 dx, dy, width, height, pitch; + + /* + * We could use hardware clipping but on many cards you get around + * hardware clipping by writing to framebuffer directly like we are + * doing here. + */ + x2 = image->dx + image->width; + y2 = image->dy + image->height; + dx = image->dx; + dy = image->dy; + x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual; + y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual; + width = x2 - dx; + height = y2 - dy; + + if (image->depth == 1) { + // used for font data + dst = (unsigned long *) + ((unsigned long)info->screen_base & ~(BYTES_PER_LONG - 1)); + dst_idx = ((unsigned long)info->screen_base & (BYTES_PER_LONG - 1)) * 8; + dst_idx += dy * par->next_line * 8 + dx; + src = image->data; + pitch = (image->width + 7) / 8; + while (height--) { + + if (info->var.bits_per_pixel == 1) + atafb_mfb_linefill(info, par->next_line, + dy, dx, width, src, + image->bg_color, image->fg_color); + else if (info->var.bits_per_pixel == 2) + atafb_iplan2p2_linefill(info, par->next_line, + dy, dx, width, src, + image->bg_color, image->fg_color); + else if (info->var.bits_per_pixel == 4) + atafb_iplan2p4_linefill(info, par->next_line, + dy, dx, width, src, + image->bg_color, image->fg_color); + else + atafb_iplan2p8_linefill(info, par->next_line, + dy, dx, width, src, + image->bg_color, image->fg_color); + dy++; + src += pitch; } - else - return -EINVAL; + } else { + // only used for logo; broken + c2p(info->screen_base, image->data, dx, dy, width, height, + par->next_line, par->next_plane, image->width, + info->var.bits_per_pixel); } - fb_display[con].var.xoffset = var->xoffset; - fb_display[con].var.yoffset = var->yoffset; - return 0; } static int @@ -2584,7 +2696,7 @@ atafb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) if (copy_from_user((void *)¤t_par, (void *)arg, sizeof(struct atafb_par))) return -EFAULT; - atafb_set_par(¤t_par); + ata_set_par(¤t_par); return 0; #endif } @@ -2598,42 +2710,82 @@ atafb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) * 3 = suspend hsync * 4 = off */ -static int -atafb_blank(int blank, struct fb_info *info) +static int atafb_blank(int blank, struct fb_info *info) { unsigned short black[16]; struct fb_cmap cmap; if (fbhw->blank && !fbhw->blank(blank)) return 1; if (blank) { - memset(black, 0, 16*sizeof(unsigned short)); - cmap.red=black; - cmap.green=black; - cmap.blue=black; - cmap.transp=NULL; - cmap.start=0; - cmap.len=16; - fb_set_cmap(&cmap, 1, info); + memset(black, 0, 16 * sizeof(unsigned short)); + cmap.red = black; + cmap.green = black; + cmap.blue = black; + cmap.transp = NULL; + cmap.start = 0; + cmap.len = 16; + fb_set_cmap(&cmap, info); } +#if 0 else - do_install_cmap(info->currcon, info); + do_install_cmap(info); +#endif + return 0; +} + + /* + * New fbcon interface ... + */ + + /* check var by decoding var into hw par, rounding if necessary, + * then encoding hw par back into new, validated var */ +static int atafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) +{ + int err; + struct atafb_par par; + + /* Validate wanted screen parameters */ + // if ((err = ata_decode_var(var, &par))) + err = fbhw->decode_var(var, &par); + if (err) + return err; + + /* Encode (possibly rounded) screen parameters */ + fbhw->encode_var(var, &par); + return 0; +} + + /* actually set hw par by decoding var, then setting hardware from + * hw par just decoded */ +static int atafb_set_par(struct fb_info *info) +{ + struct atafb_par *par = (struct atafb_par *)info->par; + + /* Decode wanted screen parameters */ + fbhw->decode_var(&info->var, par); + fbhw->encode_fix(&info->fix, par); + + /* Set new videomode */ + ata_set_par(par); + return 0; } + static struct fb_ops atafb_ops = { .owner = THIS_MODULE, - .fb_get_fix = atafb_get_fix, - .fb_get_var = atafb_get_var, - .fb_set_var = atafb_set_var, - .fb_get_cmap = atafb_get_cmap, - .fb_set_cmap = gen_set_cmap, - .fb_pan_display =atafb_pan_display, + .fb_check_var = atafb_check_var, + .fb_set_par = atafb_set_par, + .fb_setcolreg = atafb_setcolreg, .fb_blank = atafb_blank, + .fb_pan_display = atafb_pan_display, + .fb_fillrect = atafb_fillrect, + .fb_copyarea = atafb_copyarea, + .fb_imageblit = atafb_imageblit, .fb_ioctl = atafb_ioctl, }; -static void -check_default_par( int detected_mode ) +static void check_default_par(int detected_mode) { char default_name[10]; int i; @@ -2642,199 +2794,41 @@ check_default_par( int detected_mode ) /* First try the user supplied mode */ if (default_par) { - var=atafb_predefined[default_par-1]; + var = atafb_predefined[default_par - 1]; var.activate = FB_ACTIVATE_TEST; - if (do_fb_set_var(&var,1)) - default_par=0; /* failed */ + if (do_fb_set_var(&var, 1)) + default_par = 0; /* failed */ } /* Next is the autodetected one */ - if (! default_par) { - var=atafb_predefined[detected_mode-1]; /* autodetect */ + if (!default_par) { + var = atafb_predefined[detected_mode - 1]; /* autodetect */ var.activate = FB_ACTIVATE_TEST; - if (!do_fb_set_var(&var,1)) - default_par=detected_mode; + if (!do_fb_set_var(&var, 1)) + default_par = detected_mode; } /* If that also failed, try some default modes... */ - if (! default_par) { + if (!default_par) { /* try default1, default2... */ - for (i=1 ; i < 10 ; i++) { - sprintf(default_name,"default%d",i); - default_par=get_video_mode(default_name); - if (! default_par) + for (i = 1; i < 10; i++) { + sprintf(default_name,"default%d", i); + default_par = get_video_mode(default_name); + if (!default_par) panic("can't set default video mode"); - var=atafb_predefined[default_par-1]; + var = atafb_predefined[default_par - 1]; var.activate = FB_ACTIVATE_TEST; - if (! do_fb_set_var(&var,1)) + if (!do_fb_set_var(&var,1)) break; /* ok */ } } - min_mem=var.xres_virtual * var.yres_virtual * var.bits_per_pixel/8; + min_mem = var.xres_virtual * var.yres_virtual * var.bits_per_pixel / 8; if (default_mem_req < min_mem) - default_mem_req=min_mem; -} - -static int -atafb_switch(int con, struct fb_info *info) -{ - /* Do we have to save the colormap ? */ - if (fb_display[info->currcon].cmap.len) - fb_get_cmap(&fb_display[info->currcon].cmap, 1, fbhw->getcolreg, - info); - do_fb_set_var(&fb_display[con].var,1); - info->currcon=con; - /* Install new colormap */ - do_install_cmap(con, info); - return 0; -} - -int __init atafb_init(void) -{ - int pad; - int detected_mode; - unsigned long mem_req; - - if (!MACH_IS_ATARI) - return -ENXIO; - - do { -#ifdef ATAFB_EXT - if (external_addr) { - fbhw = &ext_switch; - atafb_ops.fb_setcolreg = &ext_setcolreg; - break; - } -#endif -#ifdef ATAFB_TT - if (ATARIHW_PRESENT(TT_SHIFTER)) { - fbhw = &tt_switch; - atafb_ops.fb_setcolreg = &tt_setcolreg; - break; - } -#endif -#ifdef ATAFB_FALCON - if (ATARIHW_PRESENT(VIDEL_SHIFTER)) { - fbhw = &falcon_switch; - atafb_ops.fb_setcolreg = &falcon_setcolreg; - request_irq(IRQ_AUTO_4, falcon_vbl_switcher, IRQ_TYPE_PRIO, - "framebuffer/modeswitch", falcon_vbl_switcher); - break; - } -#endif -#ifdef ATAFB_STE - if (ATARIHW_PRESENT(STND_SHIFTER) || - ATARIHW_PRESENT(EXTD_SHIFTER)) { - fbhw = &st_switch; - atafb_ops.fb_setcolreg = &stste_setcolreg; - break; - } - fbhw = &st_switch; - atafb_ops.fb_setcolreg = &stste_setcolreg; - printk("Cannot determine video hardware; defaulting to ST(e)\n"); -#else /* ATAFB_STE */ - /* no default driver included */ - /* Nobody will ever see this message :-) */ - panic("Cannot initialize video hardware"); -#endif - } while (0); - - /* Multisync monitor capabilities */ - /* Atari-TOS defaults if no boot option present */ - if (fb_info.monspecs.hfmin == 0) { - fb_info.monspecs.hfmin = 31000; - fb_info.monspecs.hfmax = 32000; - fb_info.monspecs.vfmin = 58; - fb_info.monspecs.vfmax = 62; - } - - detected_mode = fbhw->detect(); - check_default_par(detected_mode); -#ifdef ATAFB_EXT - if (!external_addr) { -#endif /* ATAFB_EXT */ - mem_req = default_mem_req + ovsc_offset + ovsc_addlen; - mem_req = PAGE_ALIGN(mem_req) + PAGE_SIZE; - screen_base = atari_stram_alloc(mem_req, "atafb"); - if (!screen_base) - panic("Cannot allocate screen memory"); - memset(screen_base, 0, mem_req); - pad = -(unsigned long)screen_base & (PAGE_SIZE-1); - screen_base+=pad; - real_screen_base=screen_base+ovsc_offset; - screen_len = (mem_req - pad - ovsc_offset) & PAGE_MASK; - st_ovsc_switch(); - if (CPU_IS_040_OR_060) { - /* On a '040+, the cache mode of video RAM must be set to - * write-through also for internal video hardware! */ - cache_push(virt_to_phys(screen_base), screen_len); - kernel_set_cachemode(screen_base, screen_len, - IOMAP_WRITETHROUGH); - } -#ifdef ATAFB_EXT - } - else { - /* Map the video memory (physical address given) to somewhere - * in the kernel address space. - */ - external_addr = - ioremap_writethrough((unsigned long)external_addr, - external_len); - if (external_vgaiobase) - external_vgaiobase = - (unsigned long)ioremap(external_vgaiobase, 0x10000); - screen_base = - real_screen_base = external_addr; - screen_len = external_len & PAGE_MASK; - memset (screen_base, 0, external_len); - } -#endif /* ATAFB_EXT */ - - strcpy(fb_info.modename, "Atari Builtin "); - fb_info.changevar = NULL; - fb_info.fbops = &atafb_ops; - fb_info.disp = &disp; - fb_info.currcon = -1; - fb_info.switch_con = &atafb_switch; - fb_info.updatevar = &fb_update_var; - fb_info.flags = FBINFO_FLAG_DEFAULT; - do_fb_set_var(&atafb_predefined[default_par-1], 1); - strcat(fb_info.modename, fb_var_names[default_par-1][0]); - - atafb_get_var(&disp.var, -1, &fb_info); - atafb_set_disp(-1, &fb_info); - do_install_cmap(0, &fb_info); - - if (register_framebuffer(&fb_info) < 0) { -#ifdef ATAFB_EXT - if (external_addr) { - iounmap(external_addr); - external_addr = NULL; - } - if (external_vgaiobase) { - iounmap((void*)external_vgaiobase); - external_vgaiobase = 0; - } -#endif - return -EINVAL; - } - - printk("Determined %dx%d, depth %d\n", - disp.var.xres, disp.var.yres, disp.var.bits_per_pixel); - if ((disp.var.xres != disp.var.xres_virtual) || - (disp.var.yres != disp.var.yres_virtual)) - printk(" virtual %dx%d\n", - disp.var.xres_virtual, disp.var.yres_virtual); - printk("fb%d: %s frame buffer device, using %dK of video memory\n", - fb_info.node, fb_info.modename, screen_len>>10); - - /* TODO: This driver cannot be unloaded yet */ - return 0; + default_mem_req = min_mem; } - #ifdef ATAFB_EXT static void __init atafb_setup_ext(char *spec) { - int xres, xres_virtual, yres, depth, planes; + int xres, xres_virtual, yres, depth, planes; unsigned long addr, len; char *p; @@ -2848,27 +2842,31 @@ static void __init atafb_setup_ext(char *spec) * * Even xres_virtual is available, we neither support panning nor hw-scrolling! */ - if (!(p = strsep(&spec, ";")) || !*p) - return; + p = strsep(&spec, ";"); + if (!p || !*p) + return; xres_virtual = xres = simple_strtoul(p, NULL, 10); if (xres <= 0) - return; + return; - if (!(p = strsep(&spec, ";")) || !*p) - return; + p = strsep(&spec, ";"); + if (!p || !*p) + return; yres = simple_strtoul(p, NULL, 10); if (yres <= 0) - return; + return; - if (!(p = strsep(&spec, ";")) || !*p) - return; + p = strsep(&spec, ";"); + if (!p || !*p) + return; depth = simple_strtoul(p, NULL, 10); if (depth != 1 && depth != 2 && depth != 4 && depth != 8 && - depth != 16 && depth != 24) - return; + depth != 16 && depth != 24) + return; - if (!(p = strsep(&spec, ";")) || !*p) - return; + p = strsep(&spec, ";"); + if (!p || !*p) + return; if (*p == 'i') planes = FB_TYPE_INTERLEAVED_PLANES; else if (*p == 'p') @@ -2876,25 +2874,27 @@ static void __init atafb_setup_ext(char *spec) else if (*p == 'n') planes = FB_TYPE_PLANES; else if (*p == 't') - planes = -1; /* true color */ + planes = -1; /* true color */ else return; - - if (!(p = strsep(&spec, ";")) || !*p) + p = strsep(&spec, ";"); + if (!p || !*p) return; addr = simple_strtoul(p, NULL, 0); - if (!(p = strsep(&spec, ";")) || !*p) - len = xres*yres*depth/8; + p = strsep(&spec, ";"); + if (!p || !*p) + len = xres * yres * depth / 8; else len = simple_strtoul(p, NULL, 0); - if ((p = strsep(&spec, ";")) && *p) { - external_vgaiobase=simple_strtoul(p, NULL, 0); - } + p = strsep(&spec, ";"); + if (p && *p) + external_vgaiobase = simple_strtoul(p, NULL, 0); - if ((p = strsep(&spec, ";")) && *p) { + p = strsep(&spec, ";"); + if (p && *p) { external_bitspercol = simple_strtoul(p, NULL, 0); if (external_bitspercol > 8) external_bitspercol = 8; @@ -2902,59 +2902,61 @@ static void __init atafb_setup_ext(char *spec) external_bitspercol = 1; } - if ((p = strsep(&spec, ";")) && *p) { + p = strsep(&spec, ";"); + if (p && *p) { if (!strcmp(p, "vga")) external_card_type = IS_VGA; if (!strcmp(p, "mv300")) external_card_type = IS_MV300; } - if ((p = strsep(&spec, ";")) && *p) { + p = strsep(&spec, ";"); + if (p && *p) { xres_virtual = simple_strtoul(p, NULL, 10); if (xres_virtual < xres) xres_virtual = xres; - if (xres_virtual*yres*depth/8 > len) - len=xres_virtual*yres*depth/8; + if (xres_virtual * yres * depth / 8 > len) + len = xres_virtual * yres * depth / 8; } - external_xres = xres; - external_xres_virtual = xres_virtual; - external_yres = yres; + external_xres = xres; + external_xres_virtual = xres_virtual; + external_yres = yres; external_depth = depth; external_pmode = planes; - external_addr = (void *)addr; - external_len = len; - - if (external_card_type == IS_MV300) - switch (external_depth) { - case 1: - MV300_reg = MV300_reg_1bit; - break; - case 4: - MV300_reg = MV300_reg_4bit; - break; - case 8: - MV300_reg = MV300_reg_8bit; - break; - } + external_addr = (void *)addr; + external_len = len; + + if (external_card_type == IS_MV300) { + switch (external_depth) { + case 1: + MV300_reg = MV300_reg_1bit; + break; + case 4: + MV300_reg = MV300_reg_4bit; + break; + case 8: + MV300_reg = MV300_reg_8bit; + break; + } + } } #endif /* ATAFB_EXT */ - static void __init atafb_setup_int(char *spec) { /* Format to config extended internal video hardware like OverScan: - "internal:<xres>;<yres>;<xres_max>;<yres_max>;<offset>" - Explanation: - <xres>: x-resolution - <yres>: y-resolution - The following are only needed if you have an overscan which - needs a black border: - <xres_max>: max. length of a line in pixels your OverScan hardware would allow - <yres_max>: max. number of lines your OverScan hardware would allow - <offset>: Offset from physical beginning to visible beginning - of screen in bytes - */ + * "internal:<xres>;<yres>;<xres_max>;<yres_max>;<offset>" + * Explanation: + * <xres>: x-resolution + * <yres>: y-resolution + * The following are only needed if you have an overscan which + * needs a black border: + * <xres_max>: max. length of a line in pixels your OverScan hardware would allow + * <yres_max>: max. number of lines your OverScan hardware would allow + * <offset>: Offset from physical beginning to visible beginning + * of screen in bytes + */ int xres; char *p; @@ -2963,23 +2965,19 @@ static void __init atafb_setup_int(char *spec) xres = simple_strtoul(p, NULL, 10); if (!(p = strsep(&spec, ";")) || !*p) return; - sttt_xres=xres; - tt_yres=st_yres=simple_strtoul(p, NULL, 10); - if ((p=strsep(&spec, ";")) && *p) { - sttt_xres_virtual=simple_strtoul(p, NULL, 10); - } - if ((p=strsep(&spec, ";")) && *p) { - sttt_yres_virtual=simple_strtoul(p, NULL, 0); - } - if ((p=strsep(&spec, ";")) && *p) { - ovsc_offset=simple_strtoul(p, NULL, 0); - } + sttt_xres = xres; + tt_yres = st_yres = simple_strtoul(p, NULL, 10); + if ((p = strsep(&spec, ";")) && *p) + sttt_xres_virtual = simple_strtoul(p, NULL, 10); + if ((p = strsep(&spec, ";")) && *p) + sttt_yres_virtual = simple_strtoul(p, NULL, 0); + if ((p = strsep(&spec, ";")) && *p) + ovsc_offset = simple_strtoul(p, NULL, 0); if (ovsc_offset || (sttt_yres_virtual != st_yres)) - use_hwscroll=0; + use_hwscroll = 0; } - #ifdef ATAFB_FALCON static void __init atafb_setup_mcap(char *spec) { @@ -3018,7 +3016,6 @@ static void __init atafb_setup_mcap(char *spec) } #endif /* ATAFB_FALCON */ - static void __init atafb_setup_user(char *spec) { /* Format of user defined video mode is: <xres>;<yres>;<depth> @@ -3026,81 +3023,257 @@ static void __init atafb_setup_user(char *spec) char *p; int xres, yres, depth, temp; - if (!(p = strsep(&spec, ";")) || !*p) + p = strsep(&spec, ";"); + if (!p || !*p) return; xres = simple_strtoul(p, NULL, 10); - if (!(p = strsep(&spec, ";")) || !*p) + p = strsep(&spec, ";"); + if (!p || !*p) return; yres = simple_strtoul(p, NULL, 10); - if (!(p = strsep(&spec, "")) || !*p) + p = strsep(&spec, ""); + if (!p || !*p) return; depth = simple_strtoul(p, NULL, 10); - if ((temp=get_video_mode("user0"))) { - default_par=temp; - atafb_predefined[default_par-1].xres = xres; - atafb_predefined[default_par-1].yres = yres; - atafb_predefined[default_par-1].bits_per_pixel = depth; + temp = get_video_mode("user0"); + if (temp) { + default_par = temp; + atafb_predefined[default_par - 1].xres = xres; + atafb_predefined[default_par - 1].yres = yres; + atafb_predefined[default_par - 1].bits_per_pixel = depth; } } -int __init atafb_setup( char *options ) +int __init atafb_setup(char *options) { - char *this_opt; - int temp; - - fb_info.fontname[0] = '\0'; + char *this_opt; + int temp; - if (!options || !*options) + if (!options || !*options) return 0; - - while ((this_opt = strsep(&options, ",")) != NULL) { - if (!*this_opt) continue; - if ((temp=get_video_mode(this_opt))) - default_par=temp; - else if (! strcmp(this_opt, "inverse")) - inverse=1; - else if (!strncmp(this_opt, "font:", 5)) - strcpy(fb_info.fontname, this_opt+5); - else if (! strncmp(this_opt, "hwscroll_",9)) { - hwscroll=simple_strtoul(this_opt+9, NULL, 10); - if (hwscroll < 0) - hwscroll = 0; - if (hwscroll > 200) - hwscroll = 200; - } + + while ((this_opt = strsep(&options, ",")) != NULL) { + if (!*this_opt) + continue; + if ((temp = get_video_mode(this_opt))) { + default_par = temp; + mode_option = this_opt; + } else if (!strcmp(this_opt, "inverse")) + inverse = 1; + else if (!strncmp(this_opt, "hwscroll_", 9)) { + hwscroll = simple_strtoul(this_opt + 9, NULL, 10); + if (hwscroll < 0) + hwscroll = 0; + if (hwscroll > 200) + hwscroll = 200; + } #ifdef ATAFB_EXT - else if (!strcmp(this_opt,"mv300")) { - external_bitspercol = 8; - external_card_type = IS_MV300; + else if (!strcmp(this_opt, "mv300")) { + external_bitspercol = 8; + external_card_type = IS_MV300; + } else if (!strncmp(this_opt, "external:", 9)) + atafb_setup_ext(this_opt + 9); +#endif + else if (!strncmp(this_opt, "internal:", 9)) + atafb_setup_int(this_opt + 9); +#ifdef ATAFB_FALCON + else if (!strncmp(this_opt, "eclock:", 7)) { + fext.f = simple_strtoul(this_opt + 7, NULL, 10); + /* external pixelclock in kHz --> ps */ + fext.t = 1000000000 / fext.f; + fext.f *= 1000; + } else if (!strncmp(this_opt, "monitorcap:", 11)) + atafb_setup_mcap(this_opt + 11); +#endif + else if (!strcmp(this_opt, "keep")) + DontCalcRes = 1; + else if (!strncmp(this_opt, "R", 1)) + atafb_setup_user(this_opt + 1); } - else if (!strncmp(this_opt,"external:",9)) - atafb_setup_ext(this_opt+9); + return 0; +} + +int __init atafb_init(void) +{ + int pad; + int detected_mode; + unsigned int defmode = 0; + unsigned long mem_req; + +#ifndef MODULE + char *option = NULL; + + if (fb_get_options("atafb", &option)) + return -ENODEV; + atafb_setup(option); +#endif + printk("atafb_init: start\n"); + + if (!MACH_IS_ATARI) + return -ENXIO; + + do { +#ifdef ATAFB_EXT + if (external_addr) { + printk("atafb_init: initializing external hw\n"); + fbhw = &ext_switch; + atafb_ops.fb_setcolreg = &ext_setcolreg; + defmode = DEFMODE_EXT; + break; + } +#endif +#ifdef ATAFB_TT + if (ATARIHW_PRESENT(TT_SHIFTER)) { + printk("atafb_init: initializing TT hw\n"); + fbhw = &tt_switch; + atafb_ops.fb_setcolreg = &tt_setcolreg; + defmode = DEFMODE_TT; + break; + } #endif - else if (!strncmp(this_opt,"internal:",9)) - atafb_setup_int(this_opt+9); #ifdef ATAFB_FALCON - else if (!strncmp(this_opt, "eclock:", 7)) { - fext.f = simple_strtoul(this_opt+7, NULL, 10); - /* external pixelclock in kHz --> ps */ - fext.t = 1000000000/fext.f; - fext.f *= 1000; + if (ATARIHW_PRESENT(VIDEL_SHIFTER)) { + printk("atafb_init: initializing Falcon hw\n"); + fbhw = &falcon_switch; + atafb_ops.fb_setcolreg = &falcon_setcolreg; + request_irq(IRQ_AUTO_4, falcon_vbl_switcher, IRQ_TYPE_PRIO, + "framebuffer/modeswitch", falcon_vbl_switcher); + defmode = DEFMODE_F30; + break; + } +#endif +#ifdef ATAFB_STE + if (ATARIHW_PRESENT(STND_SHIFTER) || + ATARIHW_PRESENT(EXTD_SHIFTER)) { + printk("atafb_init: initializing ST/E hw\n"); + fbhw = &st_switch; + atafb_ops.fb_setcolreg = &stste_setcolreg; + defmode = DEFMODE_STE; + break; + } + fbhw = &st_switch; + atafb_ops.fb_setcolreg = &stste_setcolreg; + printk("Cannot determine video hardware; defaulting to ST(e)\n"); +#else /* ATAFB_STE */ + /* no default driver included */ + /* Nobody will ever see this message :-) */ + panic("Cannot initialize video hardware"); +#endif + } while (0); + + /* Multisync monitor capabilities */ + /* Atari-TOS defaults if no boot option present */ + if (fb_info.monspecs.hfmin == 0) { + fb_info.monspecs.hfmin = 31000; + fb_info.monspecs.hfmax = 32000; + fb_info.monspecs.vfmin = 58; + fb_info.monspecs.vfmax = 62; } - else if (!strncmp(this_opt, "monitorcap:", 11)) - atafb_setup_mcap(this_opt+11); + + detected_mode = fbhw->detect(); + check_default_par(detected_mode); +#ifdef ATAFB_EXT + if (!external_addr) { +#endif /* ATAFB_EXT */ + mem_req = default_mem_req + ovsc_offset + ovsc_addlen; + mem_req = PAGE_ALIGN(mem_req) + PAGE_SIZE; + screen_base = atari_stram_alloc(mem_req, "atafb"); + if (!screen_base) + panic("Cannot allocate screen memory"); + memset(screen_base, 0, mem_req); + pad = -(unsigned long)screen_base & (PAGE_SIZE - 1); + screen_base += pad; + real_screen_base = screen_base + ovsc_offset; + screen_len = (mem_req - pad - ovsc_offset) & PAGE_MASK; + st_ovsc_switch(); + if (CPU_IS_040_OR_060) { + /* On a '040+, the cache mode of video RAM must be set to + * write-through also for internal video hardware! */ + cache_push(virt_to_phys(screen_base), screen_len); + kernel_set_cachemode(screen_base, screen_len, + IOMAP_WRITETHROUGH); + } + printk("atafb: screen_base %p real_screen_base %p screen_len %d\n", + screen_base, real_screen_base, screen_len); +#ifdef ATAFB_EXT + } else { + /* Map the video memory (physical address given) to somewhere + * in the kernel address space. + */ + external_addr = ioremap_writethrough((unsigned long)external_addr, + external_len); + if (external_vgaiobase) + external_vgaiobase = + (unsigned long)ioremap(external_vgaiobase, 0x10000); + screen_base = + real_screen_base = external_addr; + screen_len = external_len & PAGE_MASK; + memset (screen_base, 0, external_len); + } +#endif /* ATAFB_EXT */ + +// strcpy(fb_info.mode->name, "Atari Builtin "); + fb_info.fbops = &atafb_ops; + // try to set default (detected; requested) var + do_fb_set_var(&atafb_predefined[default_par - 1], 1); + // reads hw state into current par, which may not be sane yet + ata_get_par(¤t_par); + fb_info.par = ¤t_par; + // tries to read from HW which may not be initialized yet + // so set sane var first, then call atafb_set_par + atafb_get_var(&fb_info.var, &fb_info); + fb_info.flags = FBINFO_FLAG_DEFAULT; + + if (!fb_find_mode(&fb_info.var, &fb_info, mode_option, atafb_modedb, + NUM_TOTAL_MODES, &atafb_modedb[defmode], + fb_info.var.bits_per_pixel)) { + return -EINVAL; + } + + atafb_set_disp(&fb_info); + + fb_alloc_cmap(&(fb_info.cmap), 1 << fb_info.var.bits_per_pixel, 0); + + + printk("Determined %dx%d, depth %d\n", + fb_info.var.xres, fb_info.var.yres, fb_info.var.bits_per_pixel); + if ((fb_info.var.xres != fb_info.var.xres_virtual) || + (fb_info.var.yres != fb_info.var.yres_virtual)) + printk(" virtual %dx%d\n", fb_info.var.xres_virtual, + fb_info.var.yres_virtual); + + if (register_framebuffer(&fb_info) < 0) { +#ifdef ATAFB_EXT + if (external_addr) { + iounmap(external_addr); + external_addr = NULL; + } + if (external_vgaiobase) { + iounmap((void*)external_vgaiobase); + external_vgaiobase = 0; + } #endif - else if (!strcmp(this_opt, "keep")) - DontCalcRes = 1; - else if (!strncmp(this_opt, "R", 1)) - atafb_setup_user(this_opt+1); - } - return 0; + return -EINVAL; + } + + // FIXME: mode needs setting! + //printk("fb%d: %s frame buffer device, using %dK of video memory\n", + // fb_info.node, fb_info.mode->name, screen_len>>10); + printk("fb%d: frame buffer device, using %dK of video memory\n", + fb_info.node, screen_len >> 10); + + /* TODO: This driver cannot be unloaded yet */ + return 0; } +module_init(atafb_init); + #ifdef MODULE MODULE_LICENSE("GPL"); -int init_module(void) +int cleanup_module(void) { - return atafb_init(); + unregister_framebuffer(&fb_info); + return atafb_deinit(); } #endif /* MODULE */ |
