Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/video/atafb.c -- Atari builtin chipset frame buffer device |
| 3 | * |
| 4 | * Copyright (C) 1994 Martin Schaller & Roman Hodek |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 5 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * This file is subject to the terms and conditions of the GNU General Public |
| 7 | * License. See the file COPYING in the main directory of this archive |
| 8 | * for more details. |
| 9 | * |
| 10 | * History: |
| 11 | * - 03 Jan 95: Original version by Martin Schaller: The TT driver and |
| 12 | * all the device independent stuff |
| 13 | * - 09 Jan 95: Roman: I've added the hardware abstraction (hw_switch) |
| 14 | * and wrote the Falcon, ST(E), and External drivers |
| 15 | * based on the original TT driver. |
| 16 | * - 07 May 95: Martin: Added colormap operations for the external driver |
| 17 | * - 21 May 95: Martin: Added support for overscan |
| 18 | * Andreas: some bug fixes for this |
| 19 | * - Jul 95: Guenther Kelleter <guenther@pool.informatik.rwth-aachen.de>: |
| 20 | * Programmable Falcon video modes |
| 21 | * (thanks to Christian Cartus for documentation |
| 22 | * of VIDEL registers). |
| 23 | * - 27 Dec 95: Guenther: Implemented user definable video modes "user[0-7]" |
| 24 | * on minor 24...31. "user0" may be set on commandline by |
| 25 | * "R<x>;<y>;<depth>". (Makes sense only on Falcon) |
| 26 | * Video mode switch on Falcon now done at next VBL interrupt |
| 27 | * to avoid the annoying right shift of the screen. |
| 28 | * - 23 Sep 97: Juergen: added xres_virtual for cards like ProMST |
| 29 | * The external-part is legacy, therefore hardware-specific |
| 30 | * functions like panning/hardwarescrolling/blanking isn't |
| 31 | * supported. |
| 32 | * - 29 Sep 97: Juergen: added Romans suggestion for pan_display |
| 33 | * (var->xoffset was changed even if no set_screen_base avail.) |
| 34 | * - 05 Oct 97: Juergen: extfb (PACKED_PIXEL) is FB_PSEUDOCOLOR 'cause |
| 35 | * we know how to set the colors |
| 36 | * ext_*palette: read from ext_colors (former MV300_colors) |
| 37 | * write to ext_colors and RAMDAC |
| 38 | * |
| 39 | * To do: |
| 40 | * - For the Falcon it is not possible to set random video modes on |
| 41 | * SM124 and SC/TV, only the bootup resolution is supported. |
| 42 | * |
| 43 | */ |
| 44 | |
| 45 | #define ATAFB_TT |
| 46 | #define ATAFB_STE |
| 47 | #define ATAFB_EXT |
| 48 | #define ATAFB_FALCON |
| 49 | |
| 50 | #include <linux/module.h> |
| 51 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | #include <linux/errno.h> |
| 53 | #include <linux/string.h> |
| 54 | #include <linux/mm.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | #include <linux/slab.h> |
| 56 | #include <linux/delay.h> |
| 57 | #include <linux/init.h> |
| 58 | #include <linux/interrupt.h> |
| 59 | |
| 60 | #include <asm/setup.h> |
Krzysztof Helt | 84902b7 | 2007-10-16 01:29:04 -0700 | [diff] [blame] | 61 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | #include <asm/pgtable.h> |
| 63 | #include <asm/irq.h> |
| 64 | #include <asm/io.h> |
| 65 | |
| 66 | #include <asm/atarihw.h> |
| 67 | #include <asm/atariints.h> |
| 68 | #include <asm/atari_stram.h> |
| 69 | |
| 70 | #include <linux/fb.h> |
| 71 | #include <asm/atarikb.h> |
| 72 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 73 | #include "c2p.h" |
| 74 | #include "atafb.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | |
| 76 | #define SWITCH_ACIA 0x01 /* modes for switch on OverScan */ |
| 77 | #define SWITCH_SND6 0x40 |
| 78 | #define SWITCH_SND7 0x80 |
| 79 | #define SWITCH_NONE 0x00 |
| 80 | |
| 81 | |
| 82 | #define up(x, r) (((x) + (r) - 1) & ~((r)-1)) |
| 83 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 84 | /* |
| 85 | * Interface to the world |
| 86 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 88 | static int atafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info); |
| 89 | static int atafb_set_par(struct fb_info *info); |
| 90 | static int atafb_setcolreg(unsigned int regno, unsigned int red, unsigned int green, |
| 91 | unsigned int blue, unsigned int transp, |
| 92 | struct fb_info *info); |
| 93 | static int atafb_blank(int blank, struct fb_info *info); |
| 94 | static int atafb_pan_display(struct fb_var_screeninfo *var, |
| 95 | struct fb_info *info); |
| 96 | static void atafb_fillrect(struct fb_info *info, |
| 97 | const struct fb_fillrect *rect); |
| 98 | static void atafb_copyarea(struct fb_info *info, |
| 99 | const struct fb_copyarea *region); |
| 100 | static void atafb_imageblit(struct fb_info *info, const struct fb_image *image); |
| 101 | static int atafb_ioctl(struct fb_info *info, unsigned int cmd, |
| 102 | unsigned long arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 105 | static int default_par; /* default resolution (0=none) */ |
| 106 | |
| 107 | static unsigned long default_mem_req; |
| 108 | |
| 109 | static int hwscroll = -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | |
| 111 | static int use_hwscroll = 1; |
| 112 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 113 | static int sttt_xres = 640, st_yres = 400, tt_yres = 480; |
| 114 | static int sttt_xres_virtual = 640, sttt_yres_virtual = 400; |
| 115 | static int ovsc_offset, ovsc_addlen; |
| 116 | |
| 117 | /* |
| 118 | * Hardware parameters for current mode |
| 119 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | |
| 121 | static struct atafb_par { |
| 122 | void *screen_base; |
| 123 | int yres_virtual; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 124 | u_long next_line; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | #if defined ATAFB_TT || defined ATAFB_STE |
| 126 | union { |
| 127 | struct { |
| 128 | int mode; |
| 129 | int sync; |
| 130 | } tt, st; |
| 131 | #endif |
| 132 | #ifdef ATAFB_FALCON |
| 133 | struct falcon_hw { |
| 134 | /* Here are fields for storing a video mode, as direct |
| 135 | * parameters for the hardware. |
| 136 | */ |
| 137 | short sync; |
| 138 | short line_width; |
| 139 | short line_offset; |
| 140 | short st_shift; |
| 141 | short f_shift; |
| 142 | short vid_control; |
| 143 | short vid_mode; |
| 144 | short xoffset; |
| 145 | short hht, hbb, hbe, hdb, hde, hss; |
| 146 | short vft, vbb, vbe, vdb, vde, vss; |
| 147 | /* auxiliary information */ |
| 148 | short mono; |
| 149 | short ste_mode; |
| 150 | short bpp; |
Geert Uytterhoeven | 7451141 | 2008-11-18 21:13:01 +0100 | [diff] [blame] | 151 | u32 pseudo_palette[16]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | } falcon; |
| 153 | #endif |
| 154 | /* Nothing needed for external mode */ |
| 155 | } hw; |
| 156 | } current_par; |
| 157 | |
| 158 | /* Don't calculate an own resolution, and thus don't change the one found when |
| 159 | * booting (currently used for the Falcon to keep settings for internal video |
| 160 | * hardware extensions (e.g. ScreenBlaster) */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 161 | static int DontCalcRes = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | |
| 163 | #ifdef ATAFB_FALCON |
| 164 | #define HHT hw.falcon.hht |
| 165 | #define HBB hw.falcon.hbb |
| 166 | #define HBE hw.falcon.hbe |
| 167 | #define HDB hw.falcon.hdb |
| 168 | #define HDE hw.falcon.hde |
| 169 | #define HSS hw.falcon.hss |
| 170 | #define VFT hw.falcon.vft |
| 171 | #define VBB hw.falcon.vbb |
| 172 | #define VBE hw.falcon.vbe |
| 173 | #define VDB hw.falcon.vdb |
| 174 | #define VDE hw.falcon.vde |
| 175 | #define VSS hw.falcon.vss |
| 176 | #define VCO_CLOCK25 0x04 |
| 177 | #define VCO_CSYPOS 0x10 |
| 178 | #define VCO_VSYPOS 0x20 |
| 179 | #define VCO_HSYPOS 0x40 |
| 180 | #define VCO_SHORTOFFS 0x100 |
| 181 | #define VMO_DOUBLE 0x01 |
| 182 | #define VMO_INTER 0x02 |
| 183 | #define VMO_PREMASK 0x0c |
| 184 | #endif |
| 185 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 186 | static struct fb_info fb_info = { |
| 187 | .fix = { |
| 188 | .id = "Atari ", |
| 189 | .visual = FB_VISUAL_PSEUDOCOLOR, |
| 190 | .accel = FB_ACCEL_NONE, |
| 191 | } |
| 192 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | |
| 194 | static void *screen_base; /* base address of screen */ |
| 195 | static void *real_screen_base; /* (only for Overscan) */ |
| 196 | |
| 197 | static int screen_len; |
| 198 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 199 | static int current_par_valid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 201 | static int mono_moni; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | |
| 203 | |
| 204 | #ifdef ATAFB_EXT |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 205 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | /* external video handling */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 207 | static unsigned int external_xres; |
| 208 | static unsigned int external_xres_virtual; |
| 209 | static unsigned int external_yres; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 211 | /* |
| 212 | * not needed - atafb will never support panning/hardwarescroll with external |
| 213 | * static unsigned int external_yres_virtual; |
| 214 | */ |
| 215 | static unsigned int external_depth; |
| 216 | static int external_pmode; |
| 217 | static void *external_addr; |
| 218 | static unsigned long external_len; |
| 219 | static unsigned long external_vgaiobase; |
| 220 | static unsigned int external_bitspercol = 6; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 222 | /* |
| 223 | * JOE <joe@amber.dinoco.de>: |
| 224 | * added card type for external driver, is only needed for |
| 225 | * colormap handling. |
| 226 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | enum cardtype { IS_VGA, IS_MV300 }; |
| 228 | static enum cardtype external_card_type = IS_VGA; |
| 229 | |
| 230 | /* |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 231 | * The MV300 mixes the color registers. So we need an array of munged |
| 232 | * indices in order to access the correct reg. |
| 233 | */ |
| 234 | static int MV300_reg_1bit[2] = { |
| 235 | 0, 1 |
| 236 | }; |
| 237 | static int MV300_reg_4bit[16] = { |
| 238 | 0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15 |
| 239 | }; |
| 240 | static int MV300_reg_8bit[256] = { |
| 241 | 0, 128, 64, 192, 32, 160, 96, 224, 16, 144, 80, 208, 48, 176, 112, 240, |
| 242 | 8, 136, 72, 200, 40, 168, 104, 232, 24, 152, 88, 216, 56, 184, 120, 248, |
| 243 | 4, 132, 68, 196, 36, 164, 100, 228, 20, 148, 84, 212, 52, 180, 116, 244, |
| 244 | 12, 140, 76, 204, 44, 172, 108, 236, 28, 156, 92, 220, 60, 188, 124, 252, |
| 245 | 2, 130, 66, 194, 34, 162, 98, 226, 18, 146, 82, 210, 50, 178, 114, 242, |
| 246 | 10, 138, 74, 202, 42, 170, 106, 234, 26, 154, 90, 218, 58, 186, 122, 250, |
| 247 | 6, 134, 70, 198, 38, 166, 102, 230, 22, 150, 86, 214, 54, 182, 118, 246, |
| 248 | 14, 142, 78, 206, 46, 174, 110, 238, 30, 158, 94, 222, 62, 190, 126, 254, |
| 249 | 1, 129, 65, 193, 33, 161, 97, 225, 17, 145, 81, 209, 49, 177, 113, 241, |
| 250 | 9, 137, 73, 201, 41, 169, 105, 233, 25, 153, 89, 217, 57, 185, 121, 249, |
| 251 | 5, 133, 69, 197, 37, 165, 101, 229, 21, 149, 85, 213, 53, 181, 117, 245, |
| 252 | 13, 141, 77, 205, 45, 173, 109, 237, 29, 157, 93, 221, 61, 189, 125, 253, |
| 253 | 3, 131, 67, 195, 35, 163, 99, 227, 19, 147, 83, 211, 51, 179, 115, 243, |
| 254 | 11, 139, 75, 203, 43, 171, 107, 235, 27, 155, 91, 219, 59, 187, 123, 251, |
| 255 | 7, 135, 71, 199, 39, 167, 103, 231, 23, 151, 87, 215, 55, 183, 119, 247, |
| 256 | 15, 143, 79, 207, 47, 175, 111, 239, 31, 159, 95, 223, 63, 191, 127, 255 |
| 257 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | |
| 259 | static int *MV300_reg = MV300_reg_8bit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | #endif /* ATAFB_EXT */ |
| 261 | |
| 262 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 263 | static int inverse; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | |
| 265 | extern int fontheight_8x8; |
| 266 | extern int fontwidth_8x8; |
| 267 | extern unsigned char fontdata_8x8[]; |
| 268 | |
| 269 | extern int fontheight_8x16; |
| 270 | extern int fontwidth_8x16; |
| 271 | extern unsigned char fontdata_8x16[]; |
| 272 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 273 | /* |
| 274 | * struct fb_ops { |
| 275 | * * open/release and usage marking |
| 276 | * struct module *owner; |
| 277 | * int (*fb_open)(struct fb_info *info, int user); |
| 278 | * int (*fb_release)(struct fb_info *info, int user); |
| 279 | * |
| 280 | * * For framebuffers with strange non linear layouts or that do not |
| 281 | * * work with normal memory mapped access |
| 282 | * ssize_t (*fb_read)(struct file *file, char __user *buf, size_t count, loff_t *ppos); |
| 283 | * ssize_t (*fb_write)(struct file *file, const char __user *buf, size_t count, loff_t *ppos); |
| 284 | * |
| 285 | * * checks var and eventually tweaks it to something supported, |
| 286 | * * DOES NOT MODIFY PAR * |
| 287 | * int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info); |
| 288 | * |
| 289 | * * set the video mode according to info->var * |
| 290 | * int (*fb_set_par)(struct fb_info *info); |
| 291 | * |
| 292 | * * set color register * |
| 293 | * int (*fb_setcolreg)(unsigned int regno, unsigned int red, unsigned int green, |
| 294 | * unsigned int blue, unsigned int transp, struct fb_info *info); |
| 295 | * |
| 296 | * * set color registers in batch * |
| 297 | * int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info); |
| 298 | * |
| 299 | * * blank display * |
| 300 | * int (*fb_blank)(int blank, struct fb_info *info); |
| 301 | * |
| 302 | * * pan display * |
| 303 | * int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info); |
| 304 | * |
| 305 | * *** The meat of the drawing engine *** |
| 306 | * * Draws a rectangle * |
| 307 | * void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect); |
| 308 | * * Copy data from area to another * |
| 309 | * void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region); |
| 310 | * * Draws a image to the display * |
| 311 | * void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image); |
| 312 | * |
| 313 | * * Draws cursor * |
| 314 | * int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor); |
| 315 | * |
| 316 | * * Rotates the display * |
| 317 | * void (*fb_rotate)(struct fb_info *info, int angle); |
| 318 | * |
| 319 | * * wait for blit idle, optional * |
| 320 | * int (*fb_sync)(struct fb_info *info); |
| 321 | * |
| 322 | * * perform fb specific ioctl (optional) * |
| 323 | * int (*fb_ioctl)(struct fb_info *info, unsigned int cmd, |
| 324 | * unsigned long arg); |
| 325 | * |
| 326 | * * Handle 32bit compat ioctl (optional) * |
| 327 | * int (*fb_compat_ioctl)(struct fb_info *info, unsigned int cmd, |
| 328 | * unsigned long arg); |
| 329 | * |
| 330 | * * perform fb specific mmap * |
| 331 | * int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma); |
| 332 | * |
| 333 | * * save current hardware state * |
| 334 | * void (*fb_save_state)(struct fb_info *info); |
| 335 | * |
| 336 | * * restore saved state * |
| 337 | * void (*fb_restore_state)(struct fb_info *info); |
| 338 | * } ; |
| 339 | */ |
| 340 | |
| 341 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | /* ++roman: This structure abstracts from the underlying hardware (ST(e), |
| 343 | * TT, or Falcon. |
| 344 | * |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 345 | * int (*detect)(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | * This function should detect the current video mode settings and |
| 347 | * store them in atafb_predefined[0] for later reference by the |
| 348 | * user. Return the index+1 of an equivalent predefined mode or 0 |
| 349 | * if there is no such. |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 350 | * |
| 351 | * int (*encode_fix)(struct fb_fix_screeninfo *fix, |
| 352 | * struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | * This function should fill in the 'fix' structure based on the |
| 354 | * values in the 'par' structure. |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 355 | * !!! Obsolete, perhaps !!! |
| 356 | * |
| 357 | * int (*decode_var)(struct fb_var_screeninfo *var, |
| 358 | * struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | * Get the video params out of 'var'. If a value doesn't fit, round |
| 360 | * it up, if it's too big, return EINVAL. |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 361 | * Round up in the following order: bits_per_pixel, xres, yres, |
| 362 | * xres_virtual, yres_virtual, xoffset, yoffset, grayscale, bitfields, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | * horizontal timing, vertical timing. |
| 364 | * |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 365 | * int (*encode_var)(struct fb_var_screeninfo *var, |
| 366 | * struct atafb_par *par); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | * Fill the 'var' structure based on the values in 'par' and maybe |
| 368 | * other values read out of the hardware. |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 369 | * |
| 370 | * void (*get_par)(struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | * Fill the hardware's 'par' structure. |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 372 | * !!! Used only by detect() !!! |
| 373 | * |
| 374 | * void (*set_par)(struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | * Set the hardware according to 'par'. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | * |
| 377 | * void (*set_screen_base)(void *s_base) |
| 378 | * Set the base address of the displayed frame buffer. Only called |
| 379 | * if yres_virtual > yres or xres_virtual > xres. |
| 380 | * |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 381 | * int (*blank)(int blank_mode) |
| 382 | * Blank the screen if blank_mode != 0, else unblank. If blank == NULL then |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | * the caller blanks by setting the CLUT to all black. Return 0 if blanking |
| 384 | * succeeded, !=0 if un-/blanking failed due to e.g. a video mode which |
| 385 | * doesn't support it. Implements VESA suspend and powerdown modes on |
| 386 | * hardware that supports disabling hsync/vsync: |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 387 | * blank_mode == 2: suspend vsync, 3:suspend hsync, 4: powerdown. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | */ |
| 389 | |
| 390 | static struct fb_hwswitch { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 391 | int (*detect)(void); |
| 392 | int (*encode_fix)(struct fb_fix_screeninfo *fix, |
| 393 | struct atafb_par *par); |
| 394 | int (*decode_var)(struct fb_var_screeninfo *var, |
| 395 | struct atafb_par *par); |
| 396 | int (*encode_var)(struct fb_var_screeninfo *var, |
| 397 | struct atafb_par *par); |
| 398 | void (*get_par)(struct atafb_par *par); |
| 399 | void (*set_par)(struct atafb_par *par); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | void (*set_screen_base)(void *s_base); |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 401 | int (*blank)(int blank_mode); |
| 402 | int (*pan_display)(struct fb_var_screeninfo *var, |
| 403 | struct fb_info *info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | } *fbhw; |
| 405 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 406 | static char *autodetect_names[] = { "autodetect", NULL }; |
| 407 | static char *stlow_names[] = { "stlow", NULL }; |
| 408 | static char *stmid_names[] = { "stmid", "default5", NULL }; |
| 409 | static char *sthigh_names[] = { "sthigh", "default4", NULL }; |
| 410 | static char *ttlow_names[] = { "ttlow", NULL }; |
| 411 | static char *ttmid_names[] = { "ttmid", "default1", NULL }; |
| 412 | static char *tthigh_names[] = { "tthigh", "default2", NULL }; |
| 413 | static char *vga2_names[] = { "vga2", NULL }; |
| 414 | static char *vga4_names[] = { "vga4", NULL }; |
| 415 | static char *vga16_names[] = { "vga16", "default3", NULL }; |
| 416 | static char *vga256_names[] = { "vga256", NULL }; |
| 417 | static char *falh2_names[] = { "falh2", NULL }; |
| 418 | static char *falh16_names[] = { "falh16", NULL }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | |
| 420 | static char **fb_var_names[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | autodetect_names, |
| 422 | stlow_names, |
| 423 | stmid_names, |
| 424 | sthigh_names, |
| 425 | ttlow_names, |
| 426 | ttmid_names, |
| 427 | tthigh_names, |
| 428 | vga2_names, |
| 429 | vga4_names, |
| 430 | vga16_names, |
| 431 | vga256_names, |
| 432 | falh2_names, |
| 433 | falh16_names, |
| 434 | NULL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | }; |
| 436 | |
| 437 | static struct fb_var_screeninfo atafb_predefined[] = { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 438 | /* |
| 439 | * yres_virtual == 0 means use hw-scrolling if possible, else yres |
| 440 | */ |
| 441 | { /* autodetect */ |
| 442 | 0, 0, 0, 0, 0, 0, 0, 0, /* xres-grayscale */ |
| 443 | {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, /* red green blue tran*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 445 | { /* st low */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | 320, 200, 320, 0, 0, 0, 4, 0, |
| 447 | {0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0}, |
| 448 | 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 449 | { /* st mid */ |
| 450 | 640, 200, 640, 0, 0, 0, 2, 0, |
| 451 | {0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0}, |
| 452 | 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 453 | { /* st high */ |
| 454 | 640, 400, 640, 0, 0, 0, 1, 0, |
| 455 | {0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0}, |
| 456 | 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 457 | { /* tt low */ |
| 458 | 320, 480, 320, 0, 0, 0, 8, 0, |
| 459 | {0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0}, |
| 460 | 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 461 | { /* tt mid */ |
| 462 | 640, 480, 640, 0, 0, 0, 4, 0, |
| 463 | {0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0}, |
| 464 | 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 465 | { /* tt high */ |
| 466 | 1280, 960, 1280, 0, 0, 0, 1, 0, |
| 467 | {0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0}, |
| 468 | 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 469 | { /* vga2 */ |
| 470 | 640, 480, 640, 0, 0, 0, 1, 0, |
| 471 | {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, |
| 472 | 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 473 | { /* vga4 */ |
| 474 | 640, 480, 640, 0, 0, 0, 2, 0, |
| 475 | {0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0}, |
| 476 | 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 477 | { /* vga16 */ |
| 478 | 640, 480, 640, 0, 0, 0, 4, 0, |
| 479 | {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, |
| 480 | 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 481 | { /* vga256 */ |
| 482 | 640, 480, 640, 0, 0, 0, 8, 0, |
| 483 | {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, |
| 484 | 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 485 | { /* falh2 */ |
| 486 | 896, 608, 896, 0, 0, 0, 1, 0, |
| 487 | {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, |
| 488 | 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 489 | { /* falh16 */ |
| 490 | 896, 608, 896, 0, 0, 0, 4, 0, |
| 491 | {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, |
| 492 | 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 493 | }; |
| 494 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 495 | static int num_atafb_predefined = ARRAY_SIZE(atafb_predefined); |
| 496 | |
| 497 | static struct fb_videomode atafb_modedb[] __initdata = { |
| 498 | /* |
| 499 | * Atari Video Modes |
| 500 | * |
| 501 | * If you change these, make sure to update DEFMODE_* as well! |
| 502 | */ |
| 503 | |
| 504 | /* |
| 505 | * ST/TT Video Modes |
| 506 | */ |
| 507 | |
| 508 | { |
| 509 | /* 320x200, 15 kHz, 60 Hz (ST low) */ |
| 510 | "st-low", 60, 320, 200, 32000, 32, 16, 31, 14, 96, 4, |
| 511 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 512 | }, { |
| 513 | /* 640x200, 15 kHz, 60 Hz (ST medium) */ |
| 514 | "st-mid", 60, 640, 200, 32000, 32, 16, 31, 14, 96, 4, |
| 515 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 516 | }, { |
| 517 | /* 640x400, 30.25 kHz, 63.5 Hz (ST high) */ |
| 518 | "st-high", 63, 640, 400, 32000, 128, 0, 40, 14, 128, 4, |
| 519 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 520 | }, { |
| 521 | /* 320x480, 15 kHz, 60 Hz (TT low) */ |
| 522 | "tt-low", 60, 320, 480, 31041, 120, 100, 8, 16, 140, 30, |
| 523 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 524 | }, { |
| 525 | /* 640x480, 29 kHz, 57 Hz (TT medium) */ |
| 526 | "tt-mid", 60, 640, 480, 31041, 120, 100, 8, 16, 140, 30, |
| 527 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 528 | }, { |
| 529 | /* 1280x960, 29 kHz, 60 Hz (TT high) */ |
| 530 | "tt-high", 57, 640, 960, 31041, 120, 100, 8, 16, 140, 30, |
| 531 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 532 | }, |
| 533 | |
| 534 | /* |
| 535 | * VGA Video Modes |
| 536 | */ |
| 537 | |
| 538 | { |
| 539 | /* 640x480, 31 kHz, 60 Hz (VGA) */ |
| 540 | "vga", 63.5, 640, 480, 32000, 18, 42, 31, 11, 96, 3, |
| 541 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 542 | }, { |
| 543 | /* 640x400, 31 kHz, 70 Hz (VGA) */ |
| 544 | "vga70", 70, 640, 400, 32000, 18, 42, 31, 11, 96, 3, |
| 545 | FB_SYNC_VERT_HIGH_ACT | FB_SYNC_COMP_HIGH_ACT, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 546 | }, |
| 547 | |
| 548 | /* |
| 549 | * Falcon HiRes Video Modes |
| 550 | */ |
| 551 | |
| 552 | { |
| 553 | /* 896x608, 31 kHz, 60 Hz (Falcon High) */ |
| 554 | "falh", 60, 896, 608, 32000, 18, 42, 31, 1, 96,3, |
| 555 | 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP |
| 556 | }, |
| 557 | }; |
| 558 | |
| 559 | #define NUM_TOTAL_MODES ARRAY_SIZE(atafb_modedb) |
| 560 | |
| 561 | static char *mode_option __initdata = NULL; |
| 562 | |
| 563 | /* default modes */ |
| 564 | |
| 565 | #define DEFMODE_TT 5 /* "tt-high" for TT */ |
| 566 | #define DEFMODE_F30 7 /* "vga70" for Falcon */ |
| 567 | #define DEFMODE_STE 2 /* "st-high" for ST/E */ |
| 568 | #define DEFMODE_EXT 6 /* "vga" for external */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | |
| 570 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 571 | static int get_video_mode(char *vname) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 573 | char ***name_list; |
| 574 | char **name; |
| 575 | int i; |
| 576 | |
| 577 | name_list = fb_var_names; |
| 578 | for (i = 0; i < num_atafb_predefined; i++) { |
| 579 | name = *name_list++; |
| 580 | if (!name || !*name) |
| 581 | break; |
| 582 | while (*name) { |
| 583 | if (!strcmp(vname, *name)) |
| 584 | return i + 1; |
| 585 | name++; |
| 586 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | } |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 588 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | } |
| 590 | |
| 591 | |
| 592 | |
| 593 | /* ------------------- TT specific functions ---------------------- */ |
| 594 | |
| 595 | #ifdef ATAFB_TT |
| 596 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 597 | static int tt_encode_fix(struct fb_fix_screeninfo *fix, struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | { |
| 599 | int mode; |
| 600 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 601 | strcpy(fix->id, "Atari Builtin"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | fix->smem_start = (unsigned long)real_screen_base; |
| 603 | fix->smem_len = screen_len; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 604 | fix->type = FB_TYPE_INTERLEAVED_PLANES; |
| 605 | fix->type_aux = 2; |
| 606 | fix->visual = FB_VISUAL_PSEUDOCOLOR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | mode = par->hw.tt.mode & TT_SHIFTER_MODEMASK; |
| 608 | if (mode == TT_SHIFTER_TTHIGH || mode == TT_SHIFTER_STHIGH) { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 609 | fix->type = FB_TYPE_PACKED_PIXELS; |
| 610 | fix->type_aux = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | if (mode == TT_SHIFTER_TTHIGH) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 612 | fix->visual = FB_VISUAL_MONO01; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | } |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 614 | fix->xpanstep = 0; |
| 615 | fix->ypanstep = 1; |
| 616 | fix->ywrapstep = 0; |
Geert Uytterhoeven | 0260393 | 2008-11-18 21:13:01 +0100 | [diff] [blame] | 617 | fix->line_length = par->next_line; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | fix->accel = FB_ACCEL_ATARIBLITT; |
| 619 | return 0; |
| 620 | } |
| 621 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 622 | static int tt_decode_var(struct fb_var_screeninfo *var, struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 624 | int xres = var->xres; |
| 625 | int yres = var->yres; |
| 626 | int bpp = var->bits_per_pixel; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 627 | int linelen; |
| 628 | int yres_virtual = var->yres_virtual; |
| 629 | |
| 630 | if (mono_moni) { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 631 | if (bpp > 1 || xres > sttt_xres * 2 || yres > tt_yres * 2) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | return -EINVAL; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 633 | par->hw.tt.mode = TT_SHIFTER_TTHIGH; |
| 634 | xres = sttt_xres * 2; |
| 635 | yres = tt_yres * 2; |
| 636 | bpp = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | } else { |
| 638 | if (bpp > 8 || xres > sttt_xres || yres > tt_yres) |
| 639 | return -EINVAL; |
| 640 | if (bpp > 4) { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 641 | if (xres > sttt_xres / 2 || yres > tt_yres) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | return -EINVAL; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 643 | par->hw.tt.mode = TT_SHIFTER_TTLOW; |
| 644 | xres = sttt_xres / 2; |
| 645 | yres = tt_yres; |
| 646 | bpp = 8; |
| 647 | } else if (bpp > 2) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | if (xres > sttt_xres || yres > tt_yres) |
| 649 | return -EINVAL; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 650 | if (xres > sttt_xres / 2 || yres > st_yres / 2) { |
| 651 | par->hw.tt.mode = TT_SHIFTER_TTMID; |
| 652 | xres = sttt_xres; |
| 653 | yres = tt_yres; |
| 654 | bpp = 4; |
| 655 | } else { |
| 656 | par->hw.tt.mode = TT_SHIFTER_STLOW; |
| 657 | xres = sttt_xres / 2; |
| 658 | yres = st_yres / 2; |
| 659 | bpp = 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | } |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 661 | } else if (bpp > 1) { |
| 662 | if (xres > sttt_xres || yres > st_yres / 2) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 663 | return -EINVAL; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 664 | par->hw.tt.mode = TT_SHIFTER_STMID; |
| 665 | xres = sttt_xres; |
| 666 | yres = st_yres / 2; |
| 667 | bpp = 2; |
| 668 | } else if (var->xres > sttt_xres || var->yres > st_yres) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | return -EINVAL; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 670 | } else { |
| 671 | par->hw.tt.mode = TT_SHIFTER_STHIGH; |
| 672 | xres = sttt_xres; |
| 673 | yres = st_yres; |
| 674 | bpp = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | } |
| 676 | } |
| 677 | if (yres_virtual <= 0) |
| 678 | yres_virtual = 0; |
| 679 | else if (yres_virtual < yres) |
| 680 | yres_virtual = yres; |
| 681 | if (var->sync & FB_SYNC_EXT) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 682 | par->hw.tt.sync = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 684 | par->hw.tt.sync = 1; |
| 685 | linelen = xres * bpp / 8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | if (yres_virtual * linelen > screen_len && screen_len) |
| 687 | return -EINVAL; |
| 688 | if (yres * linelen > screen_len && screen_len) |
| 689 | return -EINVAL; |
| 690 | if (var->yoffset + yres > yres_virtual && yres_virtual) |
| 691 | return -EINVAL; |
| 692 | par->yres_virtual = yres_virtual; |
| 693 | par->screen_base = screen_base + var->yoffset * linelen; |
Geert Uytterhoeven | 0260393 | 2008-11-18 21:13:01 +0100 | [diff] [blame] | 694 | par->next_line = linelen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 695 | return 0; |
| 696 | } |
| 697 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 698 | static int tt_encode_var(struct fb_var_screeninfo *var, struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 699 | { |
| 700 | int linelen; |
| 701 | memset(var, 0, sizeof(struct fb_var_screeninfo)); |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 702 | var->red.offset = 0; |
| 703 | var->red.length = 4; |
| 704 | var->red.msb_right = 0; |
| 705 | var->grayscale = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 706 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 707 | var->pixclock = 31041; |
| 708 | var->left_margin = 120; /* these may be incorrect */ |
| 709 | var->right_margin = 100; |
| 710 | var->upper_margin = 8; |
| 711 | var->lower_margin = 16; |
| 712 | var->hsync_len = 140; |
| 713 | var->vsync_len = 30; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 715 | var->height = -1; |
| 716 | var->width = -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | |
| 718 | if (par->hw.tt.sync & 1) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 719 | var->sync = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 721 | var->sync = FB_SYNC_EXT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | |
| 723 | switch (par->hw.tt.mode & TT_SHIFTER_MODEMASK) { |
| 724 | case TT_SHIFTER_STLOW: |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 725 | var->xres = sttt_xres / 2; |
| 726 | var->xres_virtual = sttt_xres_virtual / 2; |
| 727 | var->yres = st_yres / 2; |
| 728 | var->bits_per_pixel = 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | break; |
| 730 | case TT_SHIFTER_STMID: |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 731 | var->xres = sttt_xres; |
| 732 | var->xres_virtual = sttt_xres_virtual; |
| 733 | var->yres = st_yres / 2; |
| 734 | var->bits_per_pixel = 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | break; |
| 736 | case TT_SHIFTER_STHIGH: |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 737 | var->xres = sttt_xres; |
| 738 | var->xres_virtual = sttt_xres_virtual; |
| 739 | var->yres = st_yres; |
| 740 | var->bits_per_pixel = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | break; |
| 742 | case TT_SHIFTER_TTLOW: |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 743 | var->xres = sttt_xres / 2; |
| 744 | var->xres_virtual = sttt_xres_virtual / 2; |
| 745 | var->yres = tt_yres; |
| 746 | var->bits_per_pixel = 8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 747 | break; |
| 748 | case TT_SHIFTER_TTMID: |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 749 | var->xres = sttt_xres; |
| 750 | var->xres_virtual = sttt_xres_virtual; |
| 751 | var->yres = tt_yres; |
| 752 | var->bits_per_pixel = 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | break; |
| 754 | case TT_SHIFTER_TTHIGH: |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 755 | var->red.length = 0; |
| 756 | var->xres = sttt_xres * 2; |
| 757 | var->xres_virtual = sttt_xres_virtual * 2; |
| 758 | var->yres = tt_yres * 2; |
| 759 | var->bits_per_pixel = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | break; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 761 | } |
| 762 | var->blue = var->green = var->red; |
| 763 | var->transp.offset = 0; |
| 764 | var->transp.length = 0; |
| 765 | var->transp.msb_right = 0; |
| 766 | linelen = var->xres_virtual * var->bits_per_pixel / 8; |
| 767 | if (!use_hwscroll) |
| 768 | var->yres_virtual = var->yres; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | else if (screen_len) { |
| 770 | if (par->yres_virtual) |
| 771 | var->yres_virtual = par->yres_virtual; |
| 772 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 773 | /* yres_virtual == 0 means use maximum */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | var->yres_virtual = screen_len / linelen; |
| 775 | } else { |
| 776 | if (hwscroll < 0) |
| 777 | var->yres_virtual = 2 * var->yres; |
| 778 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 779 | var->yres_virtual = var->yres + hwscroll * 16; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | } |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 781 | var->xoffset = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 782 | if (screen_base) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 783 | var->yoffset = (par->screen_base - screen_base) / linelen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 785 | var->yoffset = 0; |
| 786 | var->nonstd = 0; |
| 787 | var->activate = 0; |
| 788 | var->vmode = FB_VMODE_NONINTERLACED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 789 | return 0; |
| 790 | } |
| 791 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 792 | static void tt_get_par(struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | { |
| 794 | unsigned long addr; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 795 | par->hw.tt.mode = shifter_tt.tt_shiftmode; |
| 796 | par->hw.tt.sync = shifter.syncmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | addr = ((shifter.bas_hi & 0xff) << 16) | |
| 798 | ((shifter.bas_md & 0xff) << 8) | |
| 799 | ((shifter.bas_lo & 0xff)); |
| 800 | par->screen_base = phys_to_virt(addr); |
| 801 | } |
| 802 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 803 | static void tt_set_par(struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 804 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 805 | shifter_tt.tt_shiftmode = par->hw.tt.mode; |
| 806 | shifter.syncmode = par->hw.tt.sync; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 807 | /* only set screen_base if really necessary */ |
| 808 | if (current_par.screen_base != par->screen_base) |
| 809 | fbhw->set_screen_base(par->screen_base); |
| 810 | } |
| 811 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 812 | static int tt_setcolreg(unsigned int regno, unsigned int red, |
| 813 | unsigned int green, unsigned int blue, |
| 814 | unsigned int transp, struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | { |
| 816 | if ((shifter_tt.tt_shiftmode & TT_SHIFTER_MODEMASK) == TT_SHIFTER_STHIGH) |
| 817 | regno += 254; |
| 818 | if (regno > 255) |
| 819 | return 1; |
| 820 | tt_palette[regno] = (((red >> 12) << 8) | ((green >> 12) << 4) | |
| 821 | (blue >> 12)); |
| 822 | if ((shifter_tt.tt_shiftmode & TT_SHIFTER_MODEMASK) == |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 823 | TT_SHIFTER_STHIGH && regno == 254) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 824 | tt_palette[0] = 0; |
| 825 | return 0; |
| 826 | } |
| 827 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 828 | static int tt_detect(void) |
| 829 | { |
| 830 | struct atafb_par par; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 831 | |
| 832 | /* Determine the connected monitor: The DMA sound must be |
| 833 | * disabled before reading the MFP GPIP, because the Sound |
| 834 | * Done Signal and the Monochrome Detect are XORed together! |
| 835 | * |
| 836 | * Even on a TT, we should look if there is a DMA sound. It was |
| 837 | * announced that the Eagle is TT compatible, but only the PCM is |
| 838 | * missing... |
| 839 | */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 840 | if (ATARIHW_PRESENT(PCM_8BIT)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | tt_dmasnd.ctrl = DMASND_CTRL_OFF; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 842 | udelay(20); /* wait a while for things to settle down */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | } |
| 844 | mono_moni = (mfp.par_dt_reg & 0x80) == 0; |
| 845 | |
| 846 | tt_get_par(&par); |
| 847 | tt_encode_var(&atafb_predefined[0], &par); |
| 848 | |
| 849 | return 1; |
| 850 | } |
| 851 | |
| 852 | #endif /* ATAFB_TT */ |
| 853 | |
| 854 | /* ------------------- Falcon specific functions ---------------------- */ |
| 855 | |
| 856 | #ifdef ATAFB_FALCON |
| 857 | |
| 858 | static int mon_type; /* Falcon connected monitor */ |
| 859 | static int f030_bus_width; /* Falcon ram bus width (for vid_control) */ |
| 860 | #define F_MON_SM 0 |
| 861 | #define F_MON_SC 1 |
| 862 | #define F_MON_VGA 2 |
| 863 | #define F_MON_TV 3 |
| 864 | |
| 865 | static struct pixel_clock { |
| 866 | unsigned long f; /* f/[Hz] */ |
| 867 | unsigned long t; /* t/[ps] (=1/f) */ |
| 868 | int right, hsync, left; /* standard timing in clock cycles, not pixel */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 869 | /* hsync initialized in falcon_detect() */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 870 | int sync_mask; /* or-mask for hw.falcon.sync to set this clock */ |
| 871 | int control_mask; /* ditto, for hw.falcon.vid_control */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 872 | } f25 = { |
| 873 | 25175000, 39721, 18, 0, 42, 0x0, VCO_CLOCK25 |
| 874 | }, f32 = { |
| 875 | 32000000, 31250, 18, 0, 42, 0x0, 0 |
| 876 | }, fext = { |
| 877 | 0, 0, 18, 0, 42, 0x1, 0 |
| 878 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | |
| 880 | /* VIDEL-prescale values [mon_type][pixel_length from VCO] */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 881 | static int vdl_prescale[4][3] = { |
| 882 | { 4,2,1 }, { 4,2,1 }, { 4,2,2 }, { 4,2,1 } |
| 883 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 884 | |
| 885 | /* Default hsync timing [mon_type] in picoseconds */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 886 | static long h_syncs[4] = { 3000000, 4875000, 4000000, 4875000 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 888 | static inline int hxx_prescale(struct falcon_hw *hw) |
| 889 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 890 | return hw->ste_mode ? 16 |
| 891 | : vdl_prescale[mon_type][hw->vid_mode >> 2 & 0x3]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 892 | } |
| 893 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 894 | static int falcon_encode_fix(struct fb_fix_screeninfo *fix, |
| 895 | struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | { |
| 897 | strcpy(fix->id, "Atari Builtin"); |
| 898 | fix->smem_start = (unsigned long)real_screen_base; |
| 899 | fix->smem_len = screen_len; |
| 900 | fix->type = FB_TYPE_INTERLEAVED_PLANES; |
| 901 | fix->type_aux = 2; |
| 902 | fix->visual = FB_VISUAL_PSEUDOCOLOR; |
| 903 | fix->xpanstep = 1; |
| 904 | fix->ypanstep = 1; |
| 905 | fix->ywrapstep = 0; |
| 906 | if (par->hw.falcon.mono) { |
| 907 | fix->type = FB_TYPE_PACKED_PIXELS; |
| 908 | fix->type_aux = 0; |
| 909 | /* no smooth scrolling with longword aligned video mem */ |
| 910 | fix->xpanstep = 32; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 911 | } else if (par->hw.falcon.f_shift & 0x100) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | fix->type = FB_TYPE_PACKED_PIXELS; |
| 913 | fix->type_aux = 0; |
| 914 | /* Is this ok or should it be DIRECTCOLOR? */ |
| 915 | fix->visual = FB_VISUAL_TRUECOLOR; |
| 916 | fix->xpanstep = 2; |
| 917 | } |
Geert Uytterhoeven | 0260393 | 2008-11-18 21:13:01 +0100 | [diff] [blame] | 918 | fix->line_length = par->next_line; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 919 | fix->accel = FB_ACCEL_ATARIBLITT; |
| 920 | return 0; |
| 921 | } |
| 922 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 923 | static int falcon_decode_var(struct fb_var_screeninfo *var, |
| 924 | struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 925 | { |
| 926 | int bpp = var->bits_per_pixel; |
| 927 | int xres = var->xres; |
| 928 | int yres = var->yres; |
| 929 | int xres_virtual = var->xres_virtual; |
| 930 | int yres_virtual = var->yres_virtual; |
| 931 | int left_margin, right_margin, hsync_len; |
| 932 | int upper_margin, lower_margin, vsync_len; |
| 933 | int linelen; |
| 934 | int interlace = 0, doubleline = 0; |
| 935 | struct pixel_clock *pclock; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 936 | int plen; /* width of pixel in clock cycles */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | int xstretch; |
| 938 | int prescale; |
| 939 | int longoffset = 0; |
| 940 | int hfreq, vfreq; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 941 | int hdb_off, hde_off, base_off; |
| 942 | int gstart, gend1, gend2, align; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 943 | |
| 944 | /* |
| 945 | Get the video params out of 'var'. If a value doesn't fit, round |
| 946 | it up, if it's too big, return EINVAL. |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 947 | Round up in the following order: bits_per_pixel, xres, yres, |
| 948 | xres_virtual, yres_virtual, xoffset, yoffset, grayscale, bitfields, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 949 | horizontal timing, vertical timing. |
| 950 | |
| 951 | There is a maximum of screen resolution determined by pixelclock |
| 952 | and minimum frame rate -- (X+hmarg.)*(Y+vmarg.)*vfmin <= pixelclock. |
| 953 | In interlace mode this is " * " *vfmin <= pixelclock. |
| 954 | Additional constraints: hfreq. |
| 955 | Frequency range for multisync monitors is given via command line. |
| 956 | For TV and SM124 both frequencies are fixed. |
| 957 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 958 | X % 16 == 0 to fit 8x?? font (except 1 bitplane modes must use X%32 == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 959 | Y % 16 == 0 to fit 8x16 font |
| 960 | Y % 8 == 0 if Y<400 |
| 961 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 962 | Currently interlace and doubleline mode in var are ignored. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 963 | On SM124 and TV only the standard resolutions can be used. |
| 964 | */ |
| 965 | |
| 966 | /* Reject uninitialized mode */ |
| 967 | if (!xres || !yres || !bpp) |
| 968 | return -EINVAL; |
| 969 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 970 | if (mon_type == F_MON_SM && bpp != 1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 971 | return -EINVAL; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 972 | |
| 973 | if (bpp <= 1) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 974 | bpp = 1; |
| 975 | par->hw.falcon.f_shift = 0x400; |
| 976 | par->hw.falcon.st_shift = 0x200; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 977 | } else if (bpp <= 2) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 978 | bpp = 2; |
| 979 | par->hw.falcon.f_shift = 0x000; |
| 980 | par->hw.falcon.st_shift = 0x100; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 981 | } else if (bpp <= 4) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 982 | bpp = 4; |
| 983 | par->hw.falcon.f_shift = 0x000; |
| 984 | par->hw.falcon.st_shift = 0x000; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 985 | } else if (bpp <= 8) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 986 | bpp = 8; |
| 987 | par->hw.falcon.f_shift = 0x010; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 988 | } else if (bpp <= 16) { |
| 989 | bpp = 16; /* packed pixel mode */ |
| 990 | par->hw.falcon.f_shift = 0x100; /* hicolor, no overlay */ |
| 991 | } else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | return -EINVAL; |
| 993 | par->hw.falcon.bpp = bpp; |
| 994 | |
| 995 | if (mon_type == F_MON_SM || DontCalcRes) { |
| 996 | /* Skip all calculations. VGA/TV/SC1224 only supported. */ |
| 997 | struct fb_var_screeninfo *myvar = &atafb_predefined[0]; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 998 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | if (bpp > myvar->bits_per_pixel || |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1000 | var->xres > myvar->xres || |
| 1001 | var->yres > myvar->yres) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1002 | return -EINVAL; |
| 1003 | fbhw->get_par(par); /* Current par will be new par */ |
| 1004 | goto set_screen_base; /* Don't forget this */ |
| 1005 | } |
| 1006 | |
| 1007 | /* Only some fixed resolutions < 640x400 */ |
| 1008 | if (xres <= 320) |
| 1009 | xres = 320; |
| 1010 | else if (xres <= 640 && bpp != 16) |
| 1011 | xres = 640; |
| 1012 | if (yres <= 200) |
| 1013 | yres = 200; |
| 1014 | else if (yres <= 240) |
| 1015 | yres = 240; |
| 1016 | else if (yres <= 400) |
| 1017 | yres = 400; |
| 1018 | |
| 1019 | /* 2 planes must use STE compatibility mode */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1020 | par->hw.falcon.ste_mode = bpp == 2; |
| 1021 | par->hw.falcon.mono = bpp == 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1022 | |
| 1023 | /* Total and visible scanline length must be a multiple of one longword, |
| 1024 | * this and the console fontwidth yields the alignment for xres and |
| 1025 | * xres_virtual. |
| 1026 | * TODO: this way "odd" fontheights are not supported |
| 1027 | * |
| 1028 | * Special case in STE mode: blank and graphic positions don't align, |
| 1029 | * avoid trash at right margin |
| 1030 | */ |
| 1031 | if (par->hw.falcon.ste_mode) |
| 1032 | xres = (xres + 63) & ~63; |
| 1033 | else if (bpp == 1) |
| 1034 | xres = (xres + 31) & ~31; |
| 1035 | else |
| 1036 | xres = (xres + 15) & ~15; |
| 1037 | if (yres >= 400) |
| 1038 | yres = (yres + 15) & ~15; |
| 1039 | else |
| 1040 | yres = (yres + 7) & ~7; |
| 1041 | |
| 1042 | if (xres_virtual < xres) |
| 1043 | xres_virtual = xres; |
| 1044 | else if (bpp == 1) |
| 1045 | xres_virtual = (xres_virtual + 31) & ~31; |
| 1046 | else |
| 1047 | xres_virtual = (xres_virtual + 15) & ~15; |
| 1048 | |
| 1049 | if (yres_virtual <= 0) |
| 1050 | yres_virtual = 0; |
| 1051 | else if (yres_virtual < yres) |
| 1052 | yres_virtual = yres; |
| 1053 | |
| 1054 | /* backward bug-compatibility */ |
| 1055 | if (var->pixclock > 1) |
| 1056 | var->pixclock -= 1; |
| 1057 | |
| 1058 | par->hw.falcon.line_width = bpp * xres / 16; |
| 1059 | par->hw.falcon.line_offset = bpp * (xres_virtual - xres) / 16; |
| 1060 | |
| 1061 | /* single or double pixel width */ |
| 1062 | xstretch = (xres < 640) ? 2 : 1; |
| 1063 | |
| 1064 | #if 0 /* SM124 supports only 640x400, this is rejected above */ |
| 1065 | if (mon_type == F_MON_SM) { |
| 1066 | if (xres != 640 && yres != 400) |
| 1067 | return -EINVAL; |
| 1068 | plen = 1; |
| 1069 | pclock = &f32; |
| 1070 | /* SM124-mode is special */ |
| 1071 | par->hw.falcon.ste_mode = 1; |
| 1072 | par->hw.falcon.f_shift = 0x000; |
| 1073 | par->hw.falcon.st_shift = 0x200; |
| 1074 | left_margin = hsync_len = 128 / plen; |
| 1075 | right_margin = 0; |
| 1076 | /* TODO set all margins */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1077 | } else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1078 | #endif |
| 1079 | if (mon_type == F_MON_SC || mon_type == F_MON_TV) { |
| 1080 | plen = 2 * xstretch; |
| 1081 | if (var->pixclock > f32.t * plen) |
| 1082 | return -EINVAL; |
| 1083 | pclock = &f32; |
| 1084 | if (yres > 240) |
| 1085 | interlace = 1; |
| 1086 | if (var->pixclock == 0) { |
| 1087 | /* set some minimal margins which center the screen */ |
| 1088 | left_margin = 32; |
| 1089 | right_margin = 18; |
| 1090 | hsync_len = pclock->hsync / plen; |
| 1091 | upper_margin = 31; |
| 1092 | lower_margin = 14; |
| 1093 | vsync_len = interlace ? 3 : 4; |
| 1094 | } else { |
| 1095 | left_margin = var->left_margin; |
| 1096 | right_margin = var->right_margin; |
| 1097 | hsync_len = var->hsync_len; |
| 1098 | upper_margin = var->upper_margin; |
| 1099 | lower_margin = var->lower_margin; |
| 1100 | vsync_len = var->vsync_len; |
| 1101 | if (var->vmode & FB_VMODE_INTERLACED) { |
| 1102 | upper_margin = (upper_margin + 1) / 2; |
| 1103 | lower_margin = (lower_margin + 1) / 2; |
| 1104 | vsync_len = (vsync_len + 1) / 2; |
| 1105 | } else if (var->vmode & FB_VMODE_DOUBLE) { |
| 1106 | upper_margin *= 2; |
| 1107 | lower_margin *= 2; |
| 1108 | vsync_len *= 2; |
| 1109 | } |
| 1110 | } |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1111 | } else { /* F_MON_VGA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1112 | if (bpp == 16) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1113 | xstretch = 2; /* Double pixel width only for hicolor */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1114 | /* Default values are used for vert./hor. timing if no pixelclock given. */ |
| 1115 | if (var->pixclock == 0) { |
| 1116 | int linesize; |
| 1117 | |
| 1118 | /* Choose master pixelclock depending on hor. timing */ |
| 1119 | plen = 1 * xstretch; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1120 | if ((plen * xres + f25.right + f25.hsync + f25.left) * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1121 | fb_info.monspecs.hfmin < f25.f) |
| 1122 | pclock = &f25; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1123 | else if ((plen * xres + f32.right + f32.hsync + |
| 1124 | f32.left) * fb_info.monspecs.hfmin < f32.f) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1125 | pclock = &f32; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1126 | else if ((plen * xres + fext.right + fext.hsync + |
| 1127 | fext.left) * fb_info.monspecs.hfmin < fext.f && |
| 1128 | fext.f) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1129 | pclock = &fext; |
| 1130 | else |
| 1131 | return -EINVAL; |
| 1132 | |
| 1133 | left_margin = pclock->left / plen; |
| 1134 | right_margin = pclock->right / plen; |
| 1135 | hsync_len = pclock->hsync / plen; |
| 1136 | linesize = left_margin + xres + right_margin + hsync_len; |
| 1137 | upper_margin = 31; |
| 1138 | lower_margin = 11; |
| 1139 | vsync_len = 3; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1140 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1141 | /* Choose largest pixelclock <= wanted clock */ |
| 1142 | int i; |
| 1143 | unsigned long pcl = ULONG_MAX; |
| 1144 | pclock = 0; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1145 | for (i = 1; i <= 4; i *= 2) { |
| 1146 | if (f25.t * i >= var->pixclock && |
| 1147 | f25.t * i < pcl) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1148 | pcl = f25.t * i; |
| 1149 | pclock = &f25; |
| 1150 | } |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1151 | if (f32.t * i >= var->pixclock && |
| 1152 | f32.t * i < pcl) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1153 | pcl = f32.t * i; |
| 1154 | pclock = &f32; |
| 1155 | } |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1156 | if (fext.t && fext.t * i >= var->pixclock && |
| 1157 | fext.t * i < pcl) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1158 | pcl = fext.t * i; |
| 1159 | pclock = &fext; |
| 1160 | } |
| 1161 | } |
| 1162 | if (!pclock) |
| 1163 | return -EINVAL; |
| 1164 | plen = pcl / pclock->t; |
| 1165 | |
| 1166 | left_margin = var->left_margin; |
| 1167 | right_margin = var->right_margin; |
| 1168 | hsync_len = var->hsync_len; |
| 1169 | upper_margin = var->upper_margin; |
| 1170 | lower_margin = var->lower_margin; |
| 1171 | vsync_len = var->vsync_len; |
| 1172 | /* Internal unit is [single lines per (half-)frame] */ |
| 1173 | if (var->vmode & FB_VMODE_INTERLACED) { |
| 1174 | /* # lines in half frame */ |
| 1175 | /* External unit is [lines per full frame] */ |
| 1176 | upper_margin = (upper_margin + 1) / 2; |
| 1177 | lower_margin = (lower_margin + 1) / 2; |
| 1178 | vsync_len = (vsync_len + 1) / 2; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1179 | } else if (var->vmode & FB_VMODE_DOUBLE) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1180 | /* External unit is [double lines per frame] */ |
| 1181 | upper_margin *= 2; |
| 1182 | lower_margin *= 2; |
| 1183 | vsync_len *= 2; |
| 1184 | } |
| 1185 | } |
| 1186 | if (pclock == &fext) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1187 | longoffset = 1; /* VIDEL doesn't synchronize on short offset */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1188 | } |
| 1189 | /* Is video bus bandwidth (32MB/s) too low for this resolution? */ |
| 1190 | /* this is definitely wrong if bus clock != 32MHz */ |
| 1191 | if (pclock->f / plen / 8 * bpp > 32000000L) |
| 1192 | return -EINVAL; |
| 1193 | |
| 1194 | if (vsync_len < 1) |
| 1195 | vsync_len = 1; |
| 1196 | |
| 1197 | /* include sync lengths in right/lower margin for all calculations */ |
| 1198 | right_margin += hsync_len; |
| 1199 | lower_margin += vsync_len; |
| 1200 | |
| 1201 | /* ! In all calculations of margins we use # of lines in half frame |
| 1202 | * (which is a full frame in non-interlace mode), so we can switch |
| 1203 | * between interlace and non-interlace without messing around |
| 1204 | * with these. |
| 1205 | */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1206 | again: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1207 | /* Set base_offset 128 and video bus width */ |
| 1208 | par->hw.falcon.vid_control = mon_type | f030_bus_width; |
| 1209 | if (!longoffset) |
| 1210 | par->hw.falcon.vid_control |= VCO_SHORTOFFS; /* base_offset 64 */ |
| 1211 | if (var->sync & FB_SYNC_HOR_HIGH_ACT) |
| 1212 | par->hw.falcon.vid_control |= VCO_HSYPOS; |
| 1213 | if (var->sync & FB_SYNC_VERT_HIGH_ACT) |
| 1214 | par->hw.falcon.vid_control |= VCO_VSYPOS; |
| 1215 | /* Pixelclock */ |
| 1216 | par->hw.falcon.vid_control |= pclock->control_mask; |
| 1217 | /* External or internal clock */ |
| 1218 | par->hw.falcon.sync = pclock->sync_mask | 0x2; |
| 1219 | /* Pixellength and prescale */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1220 | par->hw.falcon.vid_mode = (2 / plen) << 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1221 | if (doubleline) |
| 1222 | par->hw.falcon.vid_mode |= VMO_DOUBLE; |
| 1223 | if (interlace) |
| 1224 | par->hw.falcon.vid_mode |= VMO_INTER; |
| 1225 | |
| 1226 | /********************* |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1227 | * Horizontal timing: unit = [master clock cycles] |
| 1228 | * unit of hxx-registers: [master clock cycles * prescale] |
| 1229 | * Hxx-registers are 9 bit wide |
| 1230 | * |
| 1231 | * 1 line = ((hht + 2) * 2 * prescale) clock cycles |
| 1232 | * |
| 1233 | * graphic output = hdb & 0x200 ? |
| 1234 | * ((hht + 2) * 2 - hdb + hde) * prescale - hdboff + hdeoff: |
| 1235 | * (hht + 2 - hdb + hde) * prescale - hdboff + hdeoff |
| 1236 | * (this must be a multiple of plen*128/bpp, on VGA pixels |
| 1237 | * to the right may be cut off with a bigger right margin) |
| 1238 | * |
| 1239 | * start of graphics relative to start of 1st halfline = hdb & 0x200 ? |
| 1240 | * (hdb - hht - 2) * prescale + hdboff : |
| 1241 | * hdb * prescale + hdboff |
| 1242 | * |
| 1243 | * end of graphics relative to start of 1st halfline = |
| 1244 | * (hde + hht + 2) * prescale + hdeoff |
| 1245 | *********************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1246 | /* Calculate VIDEL registers */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1247 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1248 | prescale = hxx_prescale(&par->hw.falcon); |
| 1249 | base_off = par->hw.falcon.vid_control & VCO_SHORTOFFS ? 64 : 128; |
| 1250 | |
| 1251 | /* Offsets depend on video mode */ |
| 1252 | /* Offsets are in clock cycles, divide by prescale to |
| 1253 | * calculate hd[be]-registers |
| 1254 | */ |
| 1255 | if (par->hw.falcon.f_shift & 0x100) { |
| 1256 | align = 1; |
| 1257 | hde_off = 0; |
| 1258 | hdb_off = (base_off + 16 * plen) + prescale; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1259 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1260 | align = 128 / bpp; |
| 1261 | hde_off = ((128 / bpp + 2) * plen); |
| 1262 | if (par->hw.falcon.ste_mode) |
| 1263 | hdb_off = (64 + base_off + (128 / bpp + 2) * plen) + prescale; |
| 1264 | else |
| 1265 | hdb_off = (base_off + (128 / bpp + 18) * plen) + prescale; |
| 1266 | } |
| 1267 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1268 | gstart = (prescale / 2 + plen * left_margin) / prescale; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1269 | /* gend1 is for hde (gend-gstart multiple of align), shifter's xres */ |
Julia Lawall | 416e74e | 2008-04-28 02:14:51 -0700 | [diff] [blame] | 1270 | gend1 = gstart + roundup(xres, align) * plen / prescale; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1271 | /* gend2 is for hbb, visible xres (rest to gend1 is cut off by hblank) */ |
| 1272 | gend2 = gstart + xres * plen / prescale; |
| 1273 | par->HHT = plen * (left_margin + xres + right_margin) / |
| 1274 | (2 * prescale) - 2; |
| 1275 | /* par->HHT = (gend2 + plen * right_margin / prescale) / 2 - 2;*/ |
| 1276 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1277 | par->HDB = gstart - hdb_off / prescale; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1278 | par->HBE = gstart; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1279 | if (par->HDB < 0) |
| 1280 | par->HDB += par->HHT + 2 + 0x200; |
| 1281 | par->HDE = gend1 - par->HHT - 2 - hde_off / prescale; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1282 | par->HBB = gend2 - par->HHT - 2; |
| 1283 | #if 0 |
| 1284 | /* One more Videl constraint: data fetch of two lines must not overlap */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1285 | if ((par->HDB & 0x200) && (par->HDB & ~0x200) - par->HDE <= 5) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1286 | /* if this happens increase margins, decrease hfreq. */ |
| 1287 | } |
| 1288 | #endif |
| 1289 | if (hde_off % prescale) |
| 1290 | par->HBB++; /* compensate for non matching hde and hbb */ |
| 1291 | par->HSS = par->HHT + 2 - plen * hsync_len / prescale; |
| 1292 | if (par->HSS < par->HBB) |
| 1293 | par->HSS = par->HBB; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1294 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1295 | |
| 1296 | /* check hor. frequency */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1297 | hfreq = pclock->f / ((par->HHT + 2) * prescale * 2); |
| 1298 | if (hfreq > fb_info.monspecs.hfmax && mon_type != F_MON_VGA) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1299 | /* ++guenther: ^^^^^^^^^^^^^^^^^^^ can't remember why I did this */ |
| 1300 | /* Too high -> enlarge margin */ |
| 1301 | left_margin += 1; |
| 1302 | right_margin += 1; |
| 1303 | goto again; |
| 1304 | } |
| 1305 | if (hfreq > fb_info.monspecs.hfmax || hfreq < fb_info.monspecs.hfmin) |
| 1306 | return -EINVAL; |
| 1307 | |
| 1308 | /* Vxx-registers */ |
| 1309 | /* All Vxx must be odd in non-interlace, since frame starts in the middle |
| 1310 | * of the first displayed line! |
| 1311 | * One frame consists of VFT+1 half lines. VFT+1 must be even in |
| 1312 | * non-interlace, odd in interlace mode for synchronisation. |
| 1313 | * Vxx-registers are 11 bit wide |
| 1314 | */ |
| 1315 | par->VBE = (upper_margin * 2 + 1); /* must begin on odd halfline */ |
| 1316 | par->VDB = par->VBE; |
| 1317 | par->VDE = yres; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1318 | if (!interlace) |
| 1319 | par->VDE <<= 1; |
| 1320 | if (doubleline) |
| 1321 | par->VDE <<= 1; /* VDE now half lines per (half-)frame */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1322 | par->VDE += par->VDB; |
| 1323 | par->VBB = par->VDE; |
| 1324 | par->VFT = par->VBB + (lower_margin * 2 - 1) - 1; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1325 | par->VSS = par->VFT + 1 - (vsync_len * 2 - 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1326 | /* vbb,vss,vft must be even in interlace mode */ |
| 1327 | if (interlace) { |
| 1328 | par->VBB++; |
| 1329 | par->VSS++; |
| 1330 | par->VFT++; |
| 1331 | } |
| 1332 | |
| 1333 | /* V-frequency check, hope I didn't create any loop here. */ |
| 1334 | /* Interlace and doubleline are mutually exclusive. */ |
| 1335 | vfreq = (hfreq * 2) / (par->VFT + 1); |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1336 | if (vfreq > fb_info.monspecs.vfmax && !doubleline && !interlace) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1337 | /* Too high -> try again with doubleline */ |
| 1338 | doubleline = 1; |
| 1339 | goto again; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1340 | } else if (vfreq < fb_info.monspecs.vfmin && !interlace && !doubleline) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1341 | /* Too low -> try again with interlace */ |
| 1342 | interlace = 1; |
| 1343 | goto again; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1344 | } else if (vfreq < fb_info.monspecs.vfmin && doubleline) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1345 | /* Doubleline too low -> clear doubleline and enlarge margins */ |
| 1346 | int lines; |
| 1347 | doubleline = 0; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1348 | for (lines = 0; |
| 1349 | (hfreq * 2) / (par->VFT + 1 + 4 * lines - 2 * yres) > |
| 1350 | fb_info.monspecs.vfmax; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1351 | lines++) |
| 1352 | ; |
| 1353 | upper_margin += lines; |
| 1354 | lower_margin += lines; |
| 1355 | goto again; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1356 | } else if (vfreq > fb_info.monspecs.vfmax && doubleline) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1357 | /* Doubleline too high -> enlarge margins */ |
| 1358 | int lines; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1359 | for (lines = 0; |
| 1360 | (hfreq * 2) / (par->VFT + 1 + 4 * lines) > |
| 1361 | fb_info.monspecs.vfmax; |
| 1362 | lines += 2) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1363 | ; |
| 1364 | upper_margin += lines; |
| 1365 | lower_margin += lines; |
| 1366 | goto again; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1367 | } else if (vfreq > fb_info.monspecs.vfmax && interlace) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1368 | /* Interlace, too high -> enlarge margins */ |
| 1369 | int lines; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1370 | for (lines = 0; |
| 1371 | (hfreq * 2) / (par->VFT + 1 + 4 * lines) > |
| 1372 | fb_info.monspecs.vfmax; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1373 | lines++) |
| 1374 | ; |
| 1375 | upper_margin += lines; |
| 1376 | lower_margin += lines; |
| 1377 | goto again; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1378 | } else if (vfreq < fb_info.monspecs.vfmin || |
| 1379 | vfreq > fb_info.monspecs.vfmax) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1380 | return -EINVAL; |
| 1381 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1382 | set_screen_base: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1383 | linelen = xres_virtual * bpp / 8; |
| 1384 | if (yres_virtual * linelen > screen_len && screen_len) |
| 1385 | return -EINVAL; |
| 1386 | if (yres * linelen > screen_len && screen_len) |
| 1387 | return -EINVAL; |
| 1388 | if (var->yoffset + yres > yres_virtual && yres_virtual) |
| 1389 | return -EINVAL; |
| 1390 | par->yres_virtual = yres_virtual; |
| 1391 | par->screen_base = screen_base + var->yoffset * linelen; |
| 1392 | par->hw.falcon.xoffset = 0; |
| 1393 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1394 | par->next_line = linelen; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1395 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1396 | return 0; |
| 1397 | } |
| 1398 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1399 | static int falcon_encode_var(struct fb_var_screeninfo *var, |
| 1400 | struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1401 | { |
| 1402 | /* !!! only for VGA !!! */ |
| 1403 | int linelen; |
| 1404 | int prescale, plen; |
| 1405 | int hdb_off, hde_off, base_off; |
| 1406 | struct falcon_hw *hw = &par->hw.falcon; |
| 1407 | |
| 1408 | memset(var, 0, sizeof(struct fb_var_screeninfo)); |
| 1409 | /* possible frequencies: 25.175 or 32MHz */ |
| 1410 | var->pixclock = hw->sync & 0x1 ? fext.t : |
| 1411 | hw->vid_control & VCO_CLOCK25 ? f25.t : f32.t; |
| 1412 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1413 | var->height = -1; |
| 1414 | var->width = -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1415 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1416 | var->sync = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1417 | if (hw->vid_control & VCO_HSYPOS) |
| 1418 | var->sync |= FB_SYNC_HOR_HIGH_ACT; |
| 1419 | if (hw->vid_control & VCO_VSYPOS) |
| 1420 | var->sync |= FB_SYNC_VERT_HIGH_ACT; |
| 1421 | |
| 1422 | var->vmode = FB_VMODE_NONINTERLACED; |
| 1423 | if (hw->vid_mode & VMO_INTER) |
| 1424 | var->vmode |= FB_VMODE_INTERLACED; |
| 1425 | if (hw->vid_mode & VMO_DOUBLE) |
| 1426 | var->vmode |= FB_VMODE_DOUBLE; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1427 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1428 | /* visible y resolution: |
| 1429 | * Graphics display starts at line VDB and ends at line |
| 1430 | * VDE. If interlace mode off unit of VC-registers is |
| 1431 | * half lines, else lines. |
| 1432 | */ |
| 1433 | var->yres = hw->vde - hw->vdb; |
| 1434 | if (!(var->vmode & FB_VMODE_INTERLACED)) |
| 1435 | var->yres >>= 1; |
| 1436 | if (var->vmode & FB_VMODE_DOUBLE) |
| 1437 | var->yres >>= 1; |
| 1438 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1439 | /* |
| 1440 | * to get bpp, we must examine f_shift and st_shift. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1441 | * f_shift is valid if any of bits no. 10, 8 or 4 |
| 1442 | * is set. Priority in f_shift is: 10 ">" 8 ">" 4, i.e. |
| 1443 | * if bit 10 set then bit 8 and bit 4 don't care... |
| 1444 | * If all these bits are 0 get display depth from st_shift |
| 1445 | * (as for ST and STE) |
| 1446 | */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1447 | if (hw->f_shift & 0x400) /* 2 colors */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1448 | var->bits_per_pixel = 1; |
| 1449 | else if (hw->f_shift & 0x100) /* hicolor */ |
| 1450 | var->bits_per_pixel = 16; |
| 1451 | else if (hw->f_shift & 0x010) /* 8 bitplanes */ |
| 1452 | var->bits_per_pixel = 8; |
| 1453 | else if (hw->st_shift == 0) |
| 1454 | var->bits_per_pixel = 4; |
| 1455 | else if (hw->st_shift == 0x100) |
| 1456 | var->bits_per_pixel = 2; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1457 | else /* if (hw->st_shift == 0x200) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1458 | var->bits_per_pixel = 1; |
| 1459 | |
| 1460 | var->xres = hw->line_width * 16 / var->bits_per_pixel; |
| 1461 | var->xres_virtual = var->xres + hw->line_offset * 16 / var->bits_per_pixel; |
| 1462 | if (hw->xoffset) |
| 1463 | var->xres_virtual += 16; |
| 1464 | |
| 1465 | if (var->bits_per_pixel == 16) { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1466 | var->red.offset = 11; |
| 1467 | var->red.length = 5; |
| 1468 | var->red.msb_right = 0; |
| 1469 | var->green.offset = 5; |
| 1470 | var->green.length = 6; |
| 1471 | var->green.msb_right = 0; |
| 1472 | var->blue.offset = 0; |
| 1473 | var->blue.length = 5; |
| 1474 | var->blue.msb_right = 0; |
| 1475 | } else { |
| 1476 | var->red.offset = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1477 | var->red.length = hw->ste_mode ? 4 : 6; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1478 | if (var->red.length > var->bits_per_pixel) |
| 1479 | var->red.length = var->bits_per_pixel; |
| 1480 | var->red.msb_right = 0; |
| 1481 | var->grayscale = 0; |
| 1482 | var->blue = var->green = var->red; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1483 | } |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1484 | var->transp.offset = 0; |
| 1485 | var->transp.length = 0; |
| 1486 | var->transp.msb_right = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1487 | |
| 1488 | linelen = var->xres_virtual * var->bits_per_pixel / 8; |
| 1489 | if (screen_len) { |
| 1490 | if (par->yres_virtual) |
| 1491 | var->yres_virtual = par->yres_virtual; |
| 1492 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1493 | /* yres_virtual == 0 means use maximum */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1494 | var->yres_virtual = screen_len / linelen; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1495 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1496 | if (hwscroll < 0) |
| 1497 | var->yres_virtual = 2 * var->yres; |
| 1498 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1499 | var->yres_virtual = var->yres + hwscroll * 16; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1500 | } |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1501 | var->xoffset = 0; /* TODO change this */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1502 | |
| 1503 | /* hdX-offsets */ |
| 1504 | prescale = hxx_prescale(hw); |
| 1505 | plen = 4 >> (hw->vid_mode >> 2 & 0x3); |
| 1506 | base_off = hw->vid_control & VCO_SHORTOFFS ? 64 : 128; |
| 1507 | if (hw->f_shift & 0x100) { |
| 1508 | hde_off = 0; |
| 1509 | hdb_off = (base_off + 16 * plen) + prescale; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1510 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1511 | hde_off = ((128 / var->bits_per_pixel + 2) * plen); |
| 1512 | if (hw->ste_mode) |
| 1513 | hdb_off = (64 + base_off + (128 / var->bits_per_pixel + 2) * plen) |
| 1514 | + prescale; |
| 1515 | else |
| 1516 | hdb_off = (base_off + (128 / var->bits_per_pixel + 18) * plen) |
| 1517 | + prescale; |
| 1518 | } |
| 1519 | |
| 1520 | /* Right margin includes hsync */ |
| 1521 | var->left_margin = hdb_off + prescale * ((hw->hdb & 0x1ff) - |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1522 | (hw->hdb & 0x200 ? 2 + hw->hht : 0)); |
| 1523 | if (hw->ste_mode || mon_type != F_MON_VGA) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1524 | var->right_margin = prescale * (hw->hht + 2 - hw->hde) - hde_off; |
| 1525 | else |
| 1526 | /* can't use this in ste_mode, because hbb is +1 off */ |
| 1527 | var->right_margin = prescale * (hw->hht + 2 - hw->hbb); |
| 1528 | var->hsync_len = prescale * (hw->hht + 2 - hw->hss); |
| 1529 | |
| 1530 | /* Lower margin includes vsync */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1531 | var->upper_margin = hw->vdb / 2; /* round down to full lines */ |
| 1532 | var->lower_margin = (hw->vft + 1 - hw->vde + 1) / 2; /* round up */ |
| 1533 | var->vsync_len = (hw->vft + 1 - hw->vss + 1) / 2; /* round up */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1534 | if (var->vmode & FB_VMODE_INTERLACED) { |
| 1535 | var->upper_margin *= 2; |
| 1536 | var->lower_margin *= 2; |
| 1537 | var->vsync_len *= 2; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1538 | } else if (var->vmode & FB_VMODE_DOUBLE) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1539 | var->upper_margin = (var->upper_margin + 1) / 2; |
| 1540 | var->lower_margin = (var->lower_margin + 1) / 2; |
| 1541 | var->vsync_len = (var->vsync_len + 1) / 2; |
| 1542 | } |
| 1543 | |
| 1544 | var->pixclock *= plen; |
| 1545 | var->left_margin /= plen; |
| 1546 | var->right_margin /= plen; |
| 1547 | var->hsync_len /= plen; |
| 1548 | |
| 1549 | var->right_margin -= var->hsync_len; |
| 1550 | var->lower_margin -= var->vsync_len; |
| 1551 | |
| 1552 | if (screen_base) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1553 | var->yoffset = (par->screen_base - screen_base) / linelen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1554 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1555 | var->yoffset = 0; |
| 1556 | var->nonstd = 0; /* what is this for? */ |
| 1557 | var->activate = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1558 | return 0; |
| 1559 | } |
| 1560 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1561 | static int f_change_mode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1562 | static struct falcon_hw f_new_mode; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1563 | static int f_pan_display; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1564 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1565 | static void falcon_get_par(struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1566 | { |
| 1567 | unsigned long addr; |
| 1568 | struct falcon_hw *hw = &par->hw.falcon; |
| 1569 | |
| 1570 | hw->line_width = shifter_f030.scn_width; |
| 1571 | hw->line_offset = shifter_f030.off_next; |
| 1572 | hw->st_shift = videl.st_shift & 0x300; |
| 1573 | hw->f_shift = videl.f_shift; |
| 1574 | hw->vid_control = videl.control; |
| 1575 | hw->vid_mode = videl.mode; |
| 1576 | hw->sync = shifter.syncmode & 0x1; |
| 1577 | hw->xoffset = videl.xoffset & 0xf; |
| 1578 | hw->hht = videl.hht; |
| 1579 | hw->hbb = videl.hbb; |
| 1580 | hw->hbe = videl.hbe; |
| 1581 | hw->hdb = videl.hdb; |
| 1582 | hw->hde = videl.hde; |
| 1583 | hw->hss = videl.hss; |
| 1584 | hw->vft = videl.vft; |
| 1585 | hw->vbb = videl.vbb; |
| 1586 | hw->vbe = videl.vbe; |
| 1587 | hw->vdb = videl.vdb; |
| 1588 | hw->vde = videl.vde; |
| 1589 | hw->vss = videl.vss; |
| 1590 | |
| 1591 | addr = (shifter.bas_hi & 0xff) << 16 | |
| 1592 | (shifter.bas_md & 0xff) << 8 | |
| 1593 | (shifter.bas_lo & 0xff); |
| 1594 | par->screen_base = phys_to_virt(addr); |
| 1595 | |
| 1596 | /* derived parameters */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1597 | hw->ste_mode = (hw->f_shift & 0x510) == 0 && hw->st_shift == 0x100; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1598 | hw->mono = (hw->f_shift & 0x400) || |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1599 | ((hw->f_shift & 0x510) == 0 && hw->st_shift == 0x200); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1600 | } |
| 1601 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1602 | static void falcon_set_par(struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1603 | { |
| 1604 | f_change_mode = 0; |
| 1605 | |
| 1606 | /* only set screen_base if really necessary */ |
| 1607 | if (current_par.screen_base != par->screen_base) |
| 1608 | fbhw->set_screen_base(par->screen_base); |
| 1609 | |
| 1610 | /* Don't touch any other registers if we keep the default resolution */ |
| 1611 | if (DontCalcRes) |
| 1612 | return; |
| 1613 | |
| 1614 | /* Tell vbl-handler to change video mode. |
| 1615 | * We change modes only on next VBL, to avoid desynchronisation |
| 1616 | * (a shift to the right and wrap around by a random number of pixels |
| 1617 | * in all monochrome modes). |
| 1618 | * This seems to work on my Falcon. |
| 1619 | */ |
| 1620 | f_new_mode = par->hw.falcon; |
| 1621 | f_change_mode = 1; |
| 1622 | } |
| 1623 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1624 | static irqreturn_t falcon_vbl_switcher(int irq, void *dummy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1625 | { |
| 1626 | struct falcon_hw *hw = &f_new_mode; |
| 1627 | |
| 1628 | if (f_change_mode) { |
| 1629 | f_change_mode = 0; |
| 1630 | |
| 1631 | if (hw->sync & 0x1) { |
| 1632 | /* Enable external pixelclock. This code only for ScreenWonder */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1633 | *(volatile unsigned short *)0xffff9202 = 0xffbf; |
| 1634 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1635 | /* Turn off external clocks. Read sets all output bits to 1. */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1636 | *(volatile unsigned short *)0xffff9202; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1637 | } |
| 1638 | shifter.syncmode = hw->sync; |
| 1639 | |
| 1640 | videl.hht = hw->hht; |
| 1641 | videl.hbb = hw->hbb; |
| 1642 | videl.hbe = hw->hbe; |
| 1643 | videl.hdb = hw->hdb; |
| 1644 | videl.hde = hw->hde; |
| 1645 | videl.hss = hw->hss; |
| 1646 | videl.vft = hw->vft; |
| 1647 | videl.vbb = hw->vbb; |
| 1648 | videl.vbe = hw->vbe; |
| 1649 | videl.vdb = hw->vdb; |
| 1650 | videl.vde = hw->vde; |
| 1651 | videl.vss = hw->vss; |
| 1652 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1653 | videl.f_shift = 0; /* write enables Falcon palette, 0: 4 planes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1654 | if (hw->ste_mode) { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1655 | videl.st_shift = hw->st_shift; /* write enables STE palette */ |
| 1656 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1657 | /* IMPORTANT: |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1658 | * set st_shift 0, so we can tell the screen-depth if f_shift == 0. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1659 | * Writing 0 to f_shift enables 4 plane Falcon mode but |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1660 | * doesn't set st_shift. st_shift != 0 (!= 4planes) is impossible |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1661 | * with Falcon palette. |
| 1662 | */ |
| 1663 | videl.st_shift = 0; |
| 1664 | /* now back to Falcon palette mode */ |
| 1665 | videl.f_shift = hw->f_shift; |
| 1666 | } |
| 1667 | /* writing to st_shift changed scn_width and vid_mode */ |
| 1668 | videl.xoffset = hw->xoffset; |
| 1669 | shifter_f030.scn_width = hw->line_width; |
| 1670 | shifter_f030.off_next = hw->line_offset; |
| 1671 | videl.control = hw->vid_control; |
| 1672 | videl.mode = hw->vid_mode; |
| 1673 | } |
| 1674 | if (f_pan_display) { |
| 1675 | f_pan_display = 0; |
| 1676 | videl.xoffset = current_par.hw.falcon.xoffset; |
| 1677 | shifter_f030.off_next = current_par.hw.falcon.line_offset; |
| 1678 | } |
| 1679 | return IRQ_HANDLED; |
| 1680 | } |
| 1681 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1682 | static int falcon_pan_display(struct fb_var_screeninfo *var, |
| 1683 | struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1684 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1685 | struct atafb_par *par = (struct atafb_par *)info->par; |
| 1686 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1687 | int xoffset; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1688 | int bpp = info->var.bits_per_pixel; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1689 | |
| 1690 | if (bpp == 1) |
| 1691 | var->xoffset = up(var->xoffset, 32); |
| 1692 | if (bpp != 16) |
| 1693 | par->hw.falcon.xoffset = var->xoffset & 15; |
| 1694 | else { |
| 1695 | par->hw.falcon.xoffset = 0; |
| 1696 | var->xoffset = up(var->xoffset, 2); |
| 1697 | } |
| 1698 | par->hw.falcon.line_offset = bpp * |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1699 | (info->var.xres_virtual - info->var.xres) / 16; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1700 | if (par->hw.falcon.xoffset) |
| 1701 | par->hw.falcon.line_offset -= bpp; |
| 1702 | xoffset = var->xoffset - par->hw.falcon.xoffset; |
| 1703 | |
| 1704 | par->screen_base = screen_base + |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1705 | (var->yoffset * info->var.xres_virtual + xoffset) * bpp / 8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1706 | if (fbhw->set_screen_base) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1707 | fbhw->set_screen_base(par->screen_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1708 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1709 | return -EINVAL; /* shouldn't happen */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1710 | f_pan_display = 1; |
| 1711 | return 0; |
| 1712 | } |
| 1713 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1714 | static int falcon_setcolreg(unsigned int regno, unsigned int red, |
| 1715 | unsigned int green, unsigned int blue, |
| 1716 | unsigned int transp, struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1717 | { |
| 1718 | if (regno > 255) |
| 1719 | return 1; |
| 1720 | f030_col[regno] = (((red & 0xfc00) << 16) | |
| 1721 | ((green & 0xfc00) << 8) | |
| 1722 | ((blue & 0xfc00) >> 8)); |
| 1723 | if (regno < 16) { |
| 1724 | shifter_tt.color_reg[regno] = |
| 1725 | (((red & 0xe000) >> 13) | ((red & 0x1000) >> 12) << 8) | |
| 1726 | (((green & 0xe000) >> 13) | ((green & 0x1000) >> 12) << 4) | |
| 1727 | ((blue & 0xe000) >> 13) | ((blue & 0x1000) >> 12); |
Geert Uytterhoeven | 7451141 | 2008-11-18 21:13:01 +0100 | [diff] [blame] | 1728 | #ifdef ATAFB_FALCON |
| 1729 | ((u32 *)info->pseudo_palette)[regno] = ((red & 0xf800) | |
| 1730 | ((green & 0xfc00) >> 5) | |
| 1731 | ((blue & 0xf800) >> 11)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1732 | #endif |
| 1733 | } |
| 1734 | return 0; |
| 1735 | } |
| 1736 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1737 | static int falcon_blank(int blank_mode) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1738 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1739 | /* ++guenther: we can switch off graphics by changing VDB and VDE, |
| 1740 | * so VIDEL doesn't hog the bus while saving. |
| 1741 | * (this may affect usleep()). |
| 1742 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1743 | int vdb, vss, hbe, hss; |
| 1744 | |
| 1745 | if (mon_type == F_MON_SM) /* this doesn't work on SM124 */ |
| 1746 | return 1; |
| 1747 | |
| 1748 | vdb = current_par.VDB; |
| 1749 | vss = current_par.VSS; |
| 1750 | hbe = current_par.HBE; |
| 1751 | hss = current_par.HSS; |
| 1752 | |
| 1753 | if (blank_mode >= 1) { |
| 1754 | /* disable graphics output (this speeds up the CPU) ... */ |
| 1755 | vdb = current_par.VFT + 1; |
| 1756 | /* ... and blank all lines */ |
| 1757 | hbe = current_par.HHT + 2; |
| 1758 | } |
| 1759 | /* use VESA suspend modes on VGA monitors */ |
| 1760 | if (mon_type == F_MON_VGA) { |
| 1761 | if (blank_mode == 2 || blank_mode == 4) |
| 1762 | vss = current_par.VFT + 1; |
| 1763 | if (blank_mode == 3 || blank_mode == 4) |
| 1764 | hss = current_par.HHT + 2; |
| 1765 | } |
| 1766 | |
| 1767 | videl.vdb = vdb; |
| 1768 | videl.vss = vss; |
| 1769 | videl.hbe = hbe; |
| 1770 | videl.hss = hss; |
| 1771 | |
| 1772 | return 0; |
| 1773 | } |
| 1774 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1775 | static int falcon_detect(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1776 | { |
| 1777 | struct atafb_par par; |
| 1778 | unsigned char fhw; |
| 1779 | |
| 1780 | /* Determine connected monitor and set monitor parameters */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1781 | fhw = *(unsigned char *)0xffff8006; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1782 | mon_type = fhw >> 6 & 0x3; |
| 1783 | /* bit 1 of fhw: 1=32 bit ram bus, 0=16 bit */ |
| 1784 | f030_bus_width = fhw << 6 & 0x80; |
| 1785 | switch (mon_type) { |
| 1786 | case F_MON_SM: |
| 1787 | fb_info.monspecs.vfmin = 70; |
| 1788 | fb_info.monspecs.vfmax = 72; |
| 1789 | fb_info.monspecs.hfmin = 35713; |
| 1790 | fb_info.monspecs.hfmax = 35715; |
| 1791 | break; |
| 1792 | case F_MON_SC: |
| 1793 | case F_MON_TV: |
| 1794 | /* PAL...NTSC */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1795 | fb_info.monspecs.vfmin = 49; /* not 50, since TOS defaults to 49.9x Hz */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1796 | fb_info.monspecs.vfmax = 60; |
| 1797 | fb_info.monspecs.hfmin = 15620; |
| 1798 | fb_info.monspecs.hfmax = 15755; |
| 1799 | break; |
| 1800 | } |
| 1801 | /* initialize hsync-len */ |
| 1802 | f25.hsync = h_syncs[mon_type] / f25.t; |
| 1803 | f32.hsync = h_syncs[mon_type] / f32.t; |
| 1804 | if (fext.t) |
| 1805 | fext.hsync = h_syncs[mon_type] / fext.t; |
| 1806 | |
| 1807 | falcon_get_par(&par); |
| 1808 | falcon_encode_var(&atafb_predefined[0], &par); |
| 1809 | |
| 1810 | /* Detected mode is always the "autodetect" slot */ |
| 1811 | return 1; |
| 1812 | } |
| 1813 | |
| 1814 | #endif /* ATAFB_FALCON */ |
| 1815 | |
| 1816 | /* ------------------- ST(E) specific functions ---------------------- */ |
| 1817 | |
| 1818 | #ifdef ATAFB_STE |
| 1819 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1820 | static int stste_encode_fix(struct fb_fix_screeninfo *fix, |
| 1821 | struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1822 | { |
| 1823 | int mode; |
| 1824 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1825 | strcpy(fix->id, "Atari Builtin"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1826 | fix->smem_start = (unsigned long)real_screen_base; |
| 1827 | fix->smem_len = screen_len; |
| 1828 | fix->type = FB_TYPE_INTERLEAVED_PLANES; |
| 1829 | fix->type_aux = 2; |
| 1830 | fix->visual = FB_VISUAL_PSEUDOCOLOR; |
| 1831 | mode = par->hw.st.mode & 3; |
| 1832 | if (mode == ST_HIGH) { |
| 1833 | fix->type = FB_TYPE_PACKED_PIXELS; |
| 1834 | fix->type_aux = 0; |
| 1835 | fix->visual = FB_VISUAL_MONO10; |
| 1836 | } |
| 1837 | if (ATARIHW_PRESENT(EXTD_SHIFTER)) { |
| 1838 | fix->xpanstep = 16; |
| 1839 | fix->ypanstep = 1; |
| 1840 | } else { |
| 1841 | fix->xpanstep = 0; |
| 1842 | fix->ypanstep = 0; |
| 1843 | } |
| 1844 | fix->ywrapstep = 0; |
Geert Uytterhoeven | 0260393 | 2008-11-18 21:13:01 +0100 | [diff] [blame] | 1845 | fix->line_length = par->next_line; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1846 | fix->accel = FB_ACCEL_ATARIBLITT; |
| 1847 | return 0; |
| 1848 | } |
| 1849 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1850 | static int stste_decode_var(struct fb_var_screeninfo *var, |
| 1851 | struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1852 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1853 | int xres = var->xres; |
| 1854 | int yres = var->yres; |
| 1855 | int bpp = var->bits_per_pixel; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1856 | int linelen; |
| 1857 | int yres_virtual = var->yres_virtual; |
| 1858 | |
| 1859 | if (mono_moni) { |
| 1860 | if (bpp > 1 || xres > sttt_xres || yres > st_yres) |
| 1861 | return -EINVAL; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1862 | par->hw.st.mode = ST_HIGH; |
| 1863 | xres = sttt_xres; |
| 1864 | yres = st_yres; |
| 1865 | bpp = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1866 | } else { |
| 1867 | if (bpp > 4 || xres > sttt_xres || yres > st_yres) |
| 1868 | return -EINVAL; |
| 1869 | if (bpp > 2) { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1870 | if (xres > sttt_xres / 2 || yres > st_yres / 2) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1871 | return -EINVAL; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1872 | par->hw.st.mode = ST_LOW; |
| 1873 | xres = sttt_xres / 2; |
| 1874 | yres = st_yres / 2; |
| 1875 | bpp = 4; |
| 1876 | } else if (bpp > 1) { |
| 1877 | if (xres > sttt_xres || yres > st_yres / 2) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1878 | return -EINVAL; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1879 | par->hw.st.mode = ST_MID; |
| 1880 | xres = sttt_xres; |
| 1881 | yres = st_yres / 2; |
| 1882 | bpp = 2; |
| 1883 | } else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1884 | return -EINVAL; |
| 1885 | } |
| 1886 | if (yres_virtual <= 0) |
| 1887 | yres_virtual = 0; |
| 1888 | else if (yres_virtual < yres) |
| 1889 | yres_virtual = yres; |
| 1890 | if (var->sync & FB_SYNC_EXT) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1891 | par->hw.st.sync = (par->hw.st.sync & ~1) | 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1892 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1893 | par->hw.st.sync = (par->hw.st.sync & ~1); |
| 1894 | linelen = xres * bpp / 8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1895 | if (yres_virtual * linelen > screen_len && screen_len) |
| 1896 | return -EINVAL; |
| 1897 | if (yres * linelen > screen_len && screen_len) |
| 1898 | return -EINVAL; |
| 1899 | if (var->yoffset + yres > yres_virtual && yres_virtual) |
| 1900 | return -EINVAL; |
| 1901 | par->yres_virtual = yres_virtual; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1902 | par->screen_base = screen_base + var->yoffset * linelen; |
Geert Uytterhoeven | 0260393 | 2008-11-18 21:13:01 +0100 | [diff] [blame] | 1903 | par->next_line = linelen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1904 | return 0; |
| 1905 | } |
| 1906 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1907 | static int stste_encode_var(struct fb_var_screeninfo *var, |
| 1908 | struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1909 | { |
| 1910 | int linelen; |
| 1911 | memset(var, 0, sizeof(struct fb_var_screeninfo)); |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1912 | var->red.offset = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1913 | var->red.length = ATARIHW_PRESENT(EXTD_SHIFTER) ? 4 : 3; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1914 | var->red.msb_right = 0; |
| 1915 | var->grayscale = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1916 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1917 | var->pixclock = 31041; |
| 1918 | var->left_margin = 120; /* these are incorrect */ |
| 1919 | var->right_margin = 100; |
| 1920 | var->upper_margin = 8; |
| 1921 | var->lower_margin = 16; |
| 1922 | var->hsync_len = 140; |
| 1923 | var->vsync_len = 30; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1924 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1925 | var->height = -1; |
| 1926 | var->width = -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1927 | |
| 1928 | if (!(par->hw.st.sync & 1)) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1929 | var->sync = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1930 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1931 | var->sync = FB_SYNC_EXT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1932 | |
| 1933 | switch (par->hw.st.mode & 3) { |
| 1934 | case ST_LOW: |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1935 | var->xres = sttt_xres / 2; |
| 1936 | var->yres = st_yres / 2; |
| 1937 | var->bits_per_pixel = 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1938 | break; |
| 1939 | case ST_MID: |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1940 | var->xres = sttt_xres; |
| 1941 | var->yres = st_yres / 2; |
| 1942 | var->bits_per_pixel = 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1943 | break; |
| 1944 | case ST_HIGH: |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1945 | var->xres = sttt_xres; |
| 1946 | var->yres = st_yres; |
| 1947 | var->bits_per_pixel = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1948 | break; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1949 | } |
| 1950 | var->blue = var->green = var->red; |
| 1951 | var->transp.offset = 0; |
| 1952 | var->transp.length = 0; |
| 1953 | var->transp.msb_right = 0; |
| 1954 | var->xres_virtual = sttt_xres_virtual; |
| 1955 | linelen = var->xres_virtual * var->bits_per_pixel / 8; |
| 1956 | ovsc_addlen = linelen * (sttt_yres_virtual - st_yres); |
| 1957 | |
| 1958 | if (!use_hwscroll) |
| 1959 | var->yres_virtual = var->yres; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1960 | else if (screen_len) { |
| 1961 | if (par->yres_virtual) |
| 1962 | var->yres_virtual = par->yres_virtual; |
| 1963 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1964 | /* yres_virtual == 0 means use maximum */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1965 | var->yres_virtual = screen_len / linelen; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1966 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1967 | if (hwscroll < 0) |
| 1968 | var->yres_virtual = 2 * var->yres; |
| 1969 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1970 | var->yres_virtual = var->yres + hwscroll * 16; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1971 | } |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1972 | var->xoffset = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1973 | if (screen_base) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1974 | var->yoffset = (par->screen_base - screen_base) / linelen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1975 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1976 | var->yoffset = 0; |
| 1977 | var->nonstd = 0; |
| 1978 | var->activate = 0; |
| 1979 | var->vmode = FB_VMODE_NONINTERLACED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1980 | return 0; |
| 1981 | } |
| 1982 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1983 | static void stste_get_par(struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1984 | { |
| 1985 | unsigned long addr; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1986 | par->hw.st.mode = shifter_tt.st_shiftmode; |
| 1987 | par->hw.st.sync = shifter.syncmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1988 | addr = ((shifter.bas_hi & 0xff) << 16) | |
| 1989 | ((shifter.bas_md & 0xff) << 8); |
| 1990 | if (ATARIHW_PRESENT(EXTD_SHIFTER)) |
| 1991 | addr |= (shifter.bas_lo & 0xff); |
| 1992 | par->screen_base = phys_to_virt(addr); |
| 1993 | } |
| 1994 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1995 | static void stste_set_par(struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1996 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 1997 | shifter_tt.st_shiftmode = par->hw.st.mode; |
| 1998 | shifter.syncmode = par->hw.st.sync; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1999 | /* only set screen_base if really necessary */ |
| 2000 | if (current_par.screen_base != par->screen_base) |
| 2001 | fbhw->set_screen_base(par->screen_base); |
| 2002 | } |
| 2003 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2004 | static int stste_setcolreg(unsigned int regno, unsigned int red, |
| 2005 | unsigned int green, unsigned int blue, |
| 2006 | unsigned int transp, struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2007 | { |
| 2008 | if (regno > 15) |
| 2009 | return 1; |
| 2010 | red >>= 12; |
| 2011 | blue >>= 12; |
| 2012 | green >>= 12; |
| 2013 | if (ATARIHW_PRESENT(EXTD_SHIFTER)) |
| 2014 | shifter_tt.color_reg[regno] = |
| 2015 | (((red & 0xe) >> 1) | ((red & 1) << 3) << 8) | |
| 2016 | (((green & 0xe) >> 1) | ((green & 1) << 3) << 4) | |
| 2017 | ((blue & 0xe) >> 1) | ((blue & 1) << 3); |
| 2018 | else |
| 2019 | shifter_tt.color_reg[regno] = |
| 2020 | ((red & 0xe) << 7) | |
| 2021 | ((green & 0xe) << 3) | |
| 2022 | ((blue & 0xe) >> 1); |
| 2023 | return 0; |
| 2024 | } |
| 2025 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2026 | static int stste_detect(void) |
| 2027 | { |
| 2028 | struct atafb_par par; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2029 | |
| 2030 | /* Determine the connected monitor: The DMA sound must be |
| 2031 | * disabled before reading the MFP GPIP, because the Sound |
| 2032 | * Done Signal and the Monochrome Detect are XORed together! |
| 2033 | */ |
| 2034 | if (ATARIHW_PRESENT(PCM_8BIT)) { |
| 2035 | tt_dmasnd.ctrl = DMASND_CTRL_OFF; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2036 | udelay(20); /* wait a while for things to settle down */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2037 | } |
| 2038 | mono_moni = (mfp.par_dt_reg & 0x80) == 0; |
| 2039 | |
| 2040 | stste_get_par(&par); |
| 2041 | stste_encode_var(&atafb_predefined[0], &par); |
| 2042 | |
| 2043 | if (!ATARIHW_PRESENT(EXTD_SHIFTER)) |
| 2044 | use_hwscroll = 0; |
| 2045 | return 1; |
| 2046 | } |
| 2047 | |
| 2048 | static void stste_set_screen_base(void *s_base) |
| 2049 | { |
| 2050 | unsigned long addr; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2051 | addr = virt_to_phys(s_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2052 | /* Setup Screen Memory */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2053 | shifter.bas_hi = (unsigned char)((addr & 0xff0000) >> 16); |
| 2054 | shifter.bas_md = (unsigned char)((addr & 0x00ff00) >> 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2055 | if (ATARIHW_PRESENT(EXTD_SHIFTER)) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2056 | shifter.bas_lo = (unsigned char)(addr & 0x0000ff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2057 | } |
| 2058 | |
| 2059 | #endif /* ATAFB_STE */ |
| 2060 | |
| 2061 | /* Switching the screen size should be done during vsync, otherwise |
| 2062 | * the margins may get messed up. This is a well known problem of |
| 2063 | * the ST's video system. |
| 2064 | * |
| 2065 | * Unfortunately there is hardly any way to find the vsync, as the |
| 2066 | * vertical blank interrupt is no longer in time on machines with |
| 2067 | * overscan type modifications. |
| 2068 | * |
| 2069 | * We can, however, use Timer B to safely detect the black shoulder, |
| 2070 | * but then we've got to guess an appropriate delay to find the vsync. |
| 2071 | * This might not work on every machine. |
| 2072 | * |
| 2073 | * martin_rogge @ ki.maus.de, 8th Aug 1995 |
| 2074 | */ |
| 2075 | |
| 2076 | #define LINE_DELAY (mono_moni ? 30 : 70) |
| 2077 | #define SYNC_DELAY (mono_moni ? 1500 : 2000) |
| 2078 | |
| 2079 | /* SWITCH_ACIA may be used for Falcon (ScreenBlaster III internal!) */ |
| 2080 | static void st_ovsc_switch(void) |
| 2081 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2082 | unsigned long flags; |
| 2083 | register unsigned char old, new; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2084 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2085 | if (!(atari_switches & ATARI_SWITCH_OVSC_MASK)) |
| 2086 | return; |
| 2087 | local_irq_save(flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2088 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2089 | mfp.tim_ct_b = 0x10; |
| 2090 | mfp.active_edge |= 8; |
| 2091 | mfp.tim_ct_b = 0; |
| 2092 | mfp.tim_dt_b = 0xf0; |
| 2093 | mfp.tim_ct_b = 8; |
| 2094 | while (mfp.tim_dt_b > 1) /* TOS does it this way, don't ask why */ |
| 2095 | ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2096 | new = mfp.tim_dt_b; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2097 | do { |
| 2098 | udelay(LINE_DELAY); |
| 2099 | old = new; |
| 2100 | new = mfp.tim_dt_b; |
| 2101 | } while (old != new); |
| 2102 | mfp.tim_ct_b = 0x10; |
| 2103 | udelay(SYNC_DELAY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2104 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2105 | if (atari_switches & ATARI_SWITCH_OVSC_IKBD) |
| 2106 | acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID | ACIA_RIE; |
| 2107 | if (atari_switches & ATARI_SWITCH_OVSC_MIDI) |
| 2108 | acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID; |
| 2109 | if (atari_switches & (ATARI_SWITCH_OVSC_SND6|ATARI_SWITCH_OVSC_SND7)) { |
| 2110 | sound_ym.rd_data_reg_sel = 14; |
| 2111 | sound_ym.wd_data = sound_ym.rd_data_reg_sel | |
| 2112 | ((atari_switches & ATARI_SWITCH_OVSC_SND6) ? 0x40:0) | |
| 2113 | ((atari_switches & ATARI_SWITCH_OVSC_SND7) ? 0x80:0); |
| 2114 | } |
| 2115 | local_irq_restore(flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2116 | } |
| 2117 | |
| 2118 | /* ------------------- External Video ---------------------- */ |
| 2119 | |
| 2120 | #ifdef ATAFB_EXT |
| 2121 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2122 | static int ext_encode_fix(struct fb_fix_screeninfo *fix, struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2123 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2124 | strcpy(fix->id, "Unknown Extern"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2125 | fix->smem_start = (unsigned long)external_addr; |
| 2126 | fix->smem_len = PAGE_ALIGN(external_len); |
| 2127 | if (external_depth == 1) { |
| 2128 | fix->type = FB_TYPE_PACKED_PIXELS; |
| 2129 | /* The letters 'n' and 'i' in the "atavideo=external:" stand |
| 2130 | * for "normal" and "inverted", rsp., in the monochrome case */ |
| 2131 | fix->visual = |
| 2132 | (external_pmode == FB_TYPE_INTERLEAVED_PLANES || |
| 2133 | external_pmode == FB_TYPE_PACKED_PIXELS) ? |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2134 | FB_VISUAL_MONO10 : FB_VISUAL_MONO01; |
| 2135 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2136 | /* Use STATIC if we don't know how to access color registers */ |
| 2137 | int visual = external_vgaiobase ? |
| 2138 | FB_VISUAL_PSEUDOCOLOR : |
| 2139 | FB_VISUAL_STATIC_PSEUDOCOLOR; |
| 2140 | switch (external_pmode) { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2141 | case -1: /* truecolor */ |
| 2142 | fix->type = FB_TYPE_PACKED_PIXELS; |
| 2143 | fix->visual = FB_VISUAL_TRUECOLOR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2144 | break; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2145 | case FB_TYPE_PACKED_PIXELS: |
| 2146 | fix->type = FB_TYPE_PACKED_PIXELS; |
| 2147 | fix->visual = visual; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2148 | break; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2149 | case FB_TYPE_PLANES: |
| 2150 | fix->type = FB_TYPE_PLANES; |
| 2151 | fix->visual = visual; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2152 | break; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2153 | case FB_TYPE_INTERLEAVED_PLANES: |
| 2154 | fix->type = FB_TYPE_INTERLEAVED_PLANES; |
| 2155 | fix->type_aux = 2; |
| 2156 | fix->visual = visual; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2157 | break; |
| 2158 | } |
| 2159 | } |
| 2160 | fix->xpanstep = 0; |
| 2161 | fix->ypanstep = 0; |
| 2162 | fix->ywrapstep = 0; |
Geert Uytterhoeven | 0260393 | 2008-11-18 21:13:01 +0100 | [diff] [blame] | 2163 | fix->line_length = par->next_line; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2164 | return 0; |
| 2165 | } |
| 2166 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2167 | static int ext_decode_var(struct fb_var_screeninfo *var, struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2168 | { |
| 2169 | struct fb_var_screeninfo *myvar = &atafb_predefined[0]; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2170 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2171 | if (var->bits_per_pixel > myvar->bits_per_pixel || |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2172 | var->xres > myvar->xres || |
| 2173 | var->xres_virtual > myvar->xres_virtual || |
| 2174 | var->yres > myvar->yres || |
| 2175 | var->xoffset > 0 || |
| 2176 | var->yoffset > 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2177 | return -EINVAL; |
Geert Uytterhoeven | 0260393 | 2008-11-18 21:13:01 +0100 | [diff] [blame] | 2178 | |
| 2179 | par->next_line = external_xres_virtual * external_depth / 8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2180 | return 0; |
| 2181 | } |
| 2182 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2183 | static int ext_encode_var(struct fb_var_screeninfo *var, struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2184 | { |
| 2185 | memset(var, 0, sizeof(struct fb_var_screeninfo)); |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2186 | var->red.offset = 0; |
| 2187 | var->red.length = (external_pmode == -1) ? external_depth / 3 : |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2188 | (external_vgaiobase ? external_bitspercol : 0); |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2189 | var->red.msb_right = 0; |
| 2190 | var->grayscale = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2191 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2192 | var->pixclock = 31041; |
| 2193 | var->left_margin = 120; /* these are surely incorrect */ |
| 2194 | var->right_margin = 100; |
| 2195 | var->upper_margin = 8; |
| 2196 | var->lower_margin = 16; |
| 2197 | var->hsync_len = 140; |
| 2198 | var->vsync_len = 30; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2199 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2200 | var->height = -1; |
| 2201 | var->width = -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2202 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2203 | var->sync = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2204 | |
| 2205 | var->xres = external_xres; |
| 2206 | var->yres = external_yres; |
| 2207 | var->xres_virtual = external_xres_virtual; |
| 2208 | var->bits_per_pixel = external_depth; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2209 | |
| 2210 | var->blue = var->green = var->red; |
| 2211 | var->transp.offset = 0; |
| 2212 | var->transp.length = 0; |
| 2213 | var->transp.msb_right = 0; |
| 2214 | var->yres_virtual = var->yres; |
| 2215 | var->xoffset = 0; |
| 2216 | var->yoffset = 0; |
| 2217 | var->nonstd = 0; |
| 2218 | var->activate = 0; |
| 2219 | var->vmode = FB_VMODE_NONINTERLACED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2220 | return 0; |
| 2221 | } |
| 2222 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2223 | static void ext_get_par(struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2224 | { |
| 2225 | par->screen_base = external_addr; |
| 2226 | } |
| 2227 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2228 | static void ext_set_par(struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2229 | { |
| 2230 | } |
| 2231 | |
| 2232 | #define OUTB(port,val) \ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2233 | *((unsigned volatile char *) ((port)+external_vgaiobase)) = (val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2234 | #define INB(port) \ |
| 2235 | (*((unsigned volatile char *) ((port)+external_vgaiobase))) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2236 | #define DACDelay \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2237 | do { \ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2238 | unsigned char tmp = INB(0x3da); \ |
| 2239 | tmp = INB(0x3da); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2240 | } while (0) |
| 2241 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2242 | static int ext_setcolreg(unsigned int regno, unsigned int red, |
| 2243 | unsigned int green, unsigned int blue, |
| 2244 | unsigned int transp, struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2245 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2246 | unsigned char colmask = (1 << external_bitspercol) - 1; |
| 2247 | |
| 2248 | if (!external_vgaiobase) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2249 | return 1; |
| 2250 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2251 | switch (external_card_type) { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2252 | case IS_VGA: |
| 2253 | OUTB(0x3c8, regno); |
| 2254 | DACDelay; |
| 2255 | OUTB(0x3c9, red & colmask); |
| 2256 | DACDelay; |
| 2257 | OUTB(0x3c9, green & colmask); |
| 2258 | DACDelay; |
| 2259 | OUTB(0x3c9, blue & colmask); |
| 2260 | DACDelay; |
| 2261 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2262 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2263 | case IS_MV300: |
| 2264 | OUTB((MV300_reg[regno] << 2) + 1, red); |
| 2265 | OUTB((MV300_reg[regno] << 2) + 1, green); |
| 2266 | OUTB((MV300_reg[regno] << 2) + 1, blue); |
| 2267 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2268 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2269 | default: |
| 2270 | return 1; |
| 2271 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2272 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2273 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2274 | static int ext_detect(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2275 | { |
| 2276 | struct fb_var_screeninfo *myvar = &atafb_predefined[0]; |
| 2277 | struct atafb_par dummy_par; |
| 2278 | |
| 2279 | myvar->xres = external_xres; |
| 2280 | myvar->xres_virtual = external_xres_virtual; |
| 2281 | myvar->yres = external_yres; |
| 2282 | myvar->bits_per_pixel = external_depth; |
| 2283 | ext_encode_var(myvar, &dummy_par); |
| 2284 | return 1; |
| 2285 | } |
| 2286 | |
| 2287 | #endif /* ATAFB_EXT */ |
| 2288 | |
| 2289 | /* ------ This is the same for most hardware types -------- */ |
| 2290 | |
| 2291 | static void set_screen_base(void *s_base) |
| 2292 | { |
| 2293 | unsigned long addr; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2294 | |
| 2295 | addr = virt_to_phys(s_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2296 | /* Setup Screen Memory */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2297 | shifter.bas_hi = (unsigned char)((addr & 0xff0000) >> 16); |
| 2298 | shifter.bas_md = (unsigned char)((addr & 0x00ff00) >> 8); |
| 2299 | shifter.bas_lo = (unsigned char)(addr & 0x0000ff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2300 | } |
| 2301 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2302 | static int pan_display(struct fb_var_screeninfo *var, struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2303 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2304 | struct atafb_par *par = (struct atafb_par *)info->par; |
| 2305 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2306 | if (!fbhw->set_screen_base || |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2307 | (!ATARIHW_PRESENT(EXTD_SHIFTER) && var->xoffset)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2308 | return -EINVAL; |
| 2309 | var->xoffset = up(var->xoffset, 16); |
| 2310 | par->screen_base = screen_base + |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2311 | (var->yoffset * info->var.xres_virtual + var->xoffset) |
| 2312 | * info->var.bits_per_pixel / 8; |
| 2313 | fbhw->set_screen_base(par->screen_base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2314 | return 0; |
| 2315 | } |
| 2316 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2317 | /* ------------ Interfaces to hardware functions ------------ */ |
| 2318 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2319 | #ifdef ATAFB_TT |
| 2320 | static struct fb_hwswitch tt_switch = { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2321 | .detect = tt_detect, |
| 2322 | .encode_fix = tt_encode_fix, |
| 2323 | .decode_var = tt_decode_var, |
| 2324 | .encode_var = tt_encode_var, |
| 2325 | .get_par = tt_get_par, |
| 2326 | .set_par = tt_set_par, |
| 2327 | .set_screen_base = set_screen_base, |
| 2328 | .pan_display = pan_display, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2329 | }; |
| 2330 | #endif |
| 2331 | |
| 2332 | #ifdef ATAFB_FALCON |
| 2333 | static struct fb_hwswitch falcon_switch = { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2334 | .detect = falcon_detect, |
| 2335 | .encode_fix = falcon_encode_fix, |
| 2336 | .decode_var = falcon_decode_var, |
| 2337 | .encode_var = falcon_encode_var, |
| 2338 | .get_par = falcon_get_par, |
| 2339 | .set_par = falcon_set_par, |
| 2340 | .set_screen_base = set_screen_base, |
| 2341 | .blank = falcon_blank, |
| 2342 | .pan_display = falcon_pan_display, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2343 | }; |
| 2344 | #endif |
| 2345 | |
| 2346 | #ifdef ATAFB_STE |
| 2347 | static struct fb_hwswitch st_switch = { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2348 | .detect = stste_detect, |
| 2349 | .encode_fix = stste_encode_fix, |
| 2350 | .decode_var = stste_decode_var, |
| 2351 | .encode_var = stste_encode_var, |
| 2352 | .get_par = stste_get_par, |
| 2353 | .set_par = stste_set_par, |
| 2354 | .set_screen_base = stste_set_screen_base, |
| 2355 | .pan_display = pan_display |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2356 | }; |
| 2357 | #endif |
| 2358 | |
| 2359 | #ifdef ATAFB_EXT |
| 2360 | static struct fb_hwswitch ext_switch = { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2361 | .detect = ext_detect, |
| 2362 | .encode_fix = ext_encode_fix, |
| 2363 | .decode_var = ext_decode_var, |
| 2364 | .encode_var = ext_encode_var, |
| 2365 | .get_par = ext_get_par, |
| 2366 | .set_par = ext_set_par, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2367 | }; |
| 2368 | #endif |
| 2369 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2370 | static void ata_get_par(struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2371 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2372 | if (current_par_valid) |
| 2373 | *par = current_par; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2374 | else |
| 2375 | fbhw->get_par(par); |
| 2376 | } |
| 2377 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2378 | static void ata_set_par(struct atafb_par *par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2379 | { |
| 2380 | fbhw->set_par(par); |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2381 | current_par = *par; |
| 2382 | current_par_valid = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2383 | } |
| 2384 | |
| 2385 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2386 | /* =========================================================== */ |
| 2387 | /* ============== Hardware Independent Functions ============= */ |
| 2388 | /* =========================================================== */ |
| 2389 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2390 | /* used for hardware scrolling */ |
| 2391 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2392 | static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2393 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2394 | int err, activate; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2395 | struct atafb_par par; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2396 | |
| 2397 | err = fbhw->decode_var(var, &par); |
| 2398 | if (err) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2399 | return err; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2400 | activate = var->activate; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2401 | if (((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) && isactive) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2402 | ata_set_par(&par); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2403 | fbhw->encode_var(var, &par); |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2404 | var->activate = activate; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2405 | return 0; |
| 2406 | } |
| 2407 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2408 | static int atafb_get_fix(struct fb_fix_screeninfo *fix, struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2409 | { |
| 2410 | struct atafb_par par; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2411 | int err; |
| 2412 | // Get fix directly (case con == -1 before)?? |
| 2413 | err = fbhw->decode_var(&info->var, &par); |
| 2414 | if (err) |
| 2415 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2416 | memset(fix, 0, sizeof(struct fb_fix_screeninfo)); |
| 2417 | return fbhw->encode_fix(fix, &par); |
| 2418 | } |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2419 | |
| 2420 | static int atafb_get_var(struct fb_var_screeninfo *var, struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2421 | { |
| 2422 | struct atafb_par par; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2423 | |
| 2424 | ata_get_par(&par); |
| 2425 | fbhw->encode_var(var, &par); |
| 2426 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2427 | return 0; |
| 2428 | } |
| 2429 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2430 | // No longer called by fbcon! |
| 2431 | // Still called by set_var internally |
| 2432 | |
| 2433 | static void atafb_set_disp(struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2434 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2435 | atafb_get_var(&info->var, info); |
| 2436 | atafb_get_fix(&info->fix, info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2437 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2438 | info->screen_base = (void *)info->fix.smem_start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2439 | } |
| 2440 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2441 | static int atafb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, |
| 2442 | u_int transp, struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2443 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2444 | red >>= 8; |
| 2445 | green >>= 8; |
| 2446 | blue >>= 8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2447 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2448 | return info->fbops->fb_setcolreg(regno, red, green, blue, transp, info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2449 | } |
| 2450 | |
| 2451 | static int |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2452 | atafb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2453 | { |
| 2454 | int xoffset = var->xoffset; |
| 2455 | int yoffset = var->yoffset; |
| 2456 | int err; |
| 2457 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2458 | if (var->vmode & FB_VMODE_YWRAP) { |
| 2459 | if (yoffset < 0 || yoffset >= info->var.yres_virtual || xoffset) |
| 2460 | return -EINVAL; |
| 2461 | } else { |
| 2462 | if (xoffset + info->var.xres > info->var.xres_virtual || |
| 2463 | yoffset + info->var.yres > info->var.yres_virtual) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2464 | return -EINVAL; |
| 2465 | } |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2466 | |
| 2467 | if (fbhw->pan_display) { |
| 2468 | err = fbhw->pan_display(var, info); |
| 2469 | if (err) |
| 2470 | return err; |
| 2471 | } else |
| 2472 | return -EINVAL; |
| 2473 | |
| 2474 | info->var.xoffset = xoffset; |
| 2475 | info->var.yoffset = yoffset; |
| 2476 | |
| 2477 | if (var->vmode & FB_VMODE_YWRAP) |
| 2478 | info->var.vmode |= FB_VMODE_YWRAP; |
| 2479 | else |
| 2480 | info->var.vmode &= ~FB_VMODE_YWRAP; |
| 2481 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2482 | return 0; |
| 2483 | } |
| 2484 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2485 | /* |
| 2486 | * generic drawing routines; imageblit needs updating for image depth > 1 |
| 2487 | */ |
| 2488 | |
| 2489 | #if BITS_PER_LONG == 32 |
| 2490 | #define BYTES_PER_LONG 4 |
| 2491 | #define SHIFT_PER_LONG 5 |
| 2492 | #elif BITS_PER_LONG == 64 |
| 2493 | #define BYTES_PER_LONG 8 |
| 2494 | #define SHIFT_PER_LONG 6 |
| 2495 | #else |
| 2496 | #define Please update me |
| 2497 | #endif |
| 2498 | |
| 2499 | |
| 2500 | static void atafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) |
| 2501 | { |
| 2502 | struct atafb_par *par = (struct atafb_par *)info->par; |
| 2503 | int x2, y2; |
| 2504 | u32 width, height; |
| 2505 | |
| 2506 | if (!rect->width || !rect->height) |
| 2507 | return; |
| 2508 | |
Geert Uytterhoeven | 7451141 | 2008-11-18 21:13:01 +0100 | [diff] [blame] | 2509 | #ifdef ATAFB_FALCON |
| 2510 | if (info->var.bits_per_pixel == 16) { |
| 2511 | cfb_fillrect(info, rect); |
| 2512 | return; |
| 2513 | } |
| 2514 | #endif |
| 2515 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2516 | /* |
| 2517 | * We could use hardware clipping but on many cards you get around |
| 2518 | * hardware clipping by writing to framebuffer directly. |
| 2519 | * */ |
| 2520 | x2 = rect->dx + rect->width; |
| 2521 | y2 = rect->dy + rect->height; |
| 2522 | x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual; |
| 2523 | y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual; |
| 2524 | width = x2 - rect->dx; |
| 2525 | height = y2 - rect->dy; |
| 2526 | |
| 2527 | if (info->var.bits_per_pixel == 1) |
| 2528 | atafb_mfb_fillrect(info, par->next_line, rect->color, |
| 2529 | rect->dy, rect->dx, height, width); |
| 2530 | else if (info->var.bits_per_pixel == 2) |
| 2531 | atafb_iplan2p2_fillrect(info, par->next_line, rect->color, |
| 2532 | rect->dy, rect->dx, height, width); |
| 2533 | else if (info->var.bits_per_pixel == 4) |
| 2534 | atafb_iplan2p4_fillrect(info, par->next_line, rect->color, |
| 2535 | rect->dy, rect->dx, height, width); |
| 2536 | else |
| 2537 | atafb_iplan2p8_fillrect(info, par->next_line, rect->color, |
| 2538 | rect->dy, rect->dx, height, width); |
| 2539 | |
| 2540 | return; |
| 2541 | } |
| 2542 | |
| 2543 | static void atafb_copyarea(struct fb_info *info, const struct fb_copyarea *area) |
| 2544 | { |
| 2545 | struct atafb_par *par = (struct atafb_par *)info->par; |
| 2546 | int x2, y2; |
| 2547 | u32 dx, dy, sx, sy, width, height; |
| 2548 | int rev_copy = 0; |
| 2549 | |
Geert Uytterhoeven | 7451141 | 2008-11-18 21:13:01 +0100 | [diff] [blame] | 2550 | #ifdef ATAFB_FALCON |
| 2551 | if (info->var.bits_per_pixel == 16) { |
| 2552 | cfb_copyarea(info, area); |
| 2553 | return; |
| 2554 | } |
| 2555 | #endif |
| 2556 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2557 | /* clip the destination */ |
| 2558 | x2 = area->dx + area->width; |
| 2559 | y2 = area->dy + area->height; |
| 2560 | dx = area->dx > 0 ? area->dx : 0; |
| 2561 | dy = area->dy > 0 ? area->dy : 0; |
| 2562 | x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual; |
| 2563 | y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual; |
| 2564 | width = x2 - dx; |
| 2565 | height = y2 - dy; |
| 2566 | |
Roel Kluin | 1c0face | 2008-07-23 21:31:18 -0700 | [diff] [blame] | 2567 | if (area->sx + dx < area->dx || area->sy + dy < area->dy) |
| 2568 | return; |
| 2569 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2570 | /* update sx,sy */ |
| 2571 | sx = area->sx + (dx - area->dx); |
| 2572 | sy = area->sy + (dy - area->dy); |
| 2573 | |
| 2574 | /* the source must be completely inside the virtual screen */ |
Roel Kluin | 1c0face | 2008-07-23 21:31:18 -0700 | [diff] [blame] | 2575 | if (sx + width > info->var.xres_virtual || |
| 2576 | sy + height > info->var.yres_virtual) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2577 | return; |
| 2578 | |
| 2579 | if (dy > sy || (dy == sy && dx > sx)) { |
| 2580 | dy += height; |
| 2581 | sy += height; |
| 2582 | rev_copy = 1; |
| 2583 | } |
| 2584 | |
| 2585 | if (info->var.bits_per_pixel == 1) |
| 2586 | atafb_mfb_copyarea(info, par->next_line, sy, sx, dy, dx, height, width); |
| 2587 | else if (info->var.bits_per_pixel == 2) |
| 2588 | atafb_iplan2p2_copyarea(info, par->next_line, sy, sx, dy, dx, height, width); |
| 2589 | else if (info->var.bits_per_pixel == 4) |
| 2590 | atafb_iplan2p4_copyarea(info, par->next_line, sy, sx, dy, dx, height, width); |
| 2591 | else |
| 2592 | atafb_iplan2p8_copyarea(info, par->next_line, sy, sx, dy, dx, height, width); |
| 2593 | |
| 2594 | return; |
| 2595 | } |
| 2596 | |
| 2597 | static void atafb_imageblit(struct fb_info *info, const struct fb_image *image) |
| 2598 | { |
| 2599 | struct atafb_par *par = (struct atafb_par *)info->par; |
| 2600 | int x2, y2; |
| 2601 | unsigned long *dst; |
| 2602 | int dst_idx; |
| 2603 | const char *src; |
| 2604 | u32 dx, dy, width, height, pitch; |
| 2605 | |
Geert Uytterhoeven | 7451141 | 2008-11-18 21:13:01 +0100 | [diff] [blame] | 2606 | #ifdef ATAFB_FALCON |
| 2607 | if (info->var.bits_per_pixel == 16) { |
| 2608 | cfb_imageblit(info, image); |
| 2609 | return; |
| 2610 | } |
| 2611 | #endif |
| 2612 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2613 | /* |
| 2614 | * We could use hardware clipping but on many cards you get around |
| 2615 | * hardware clipping by writing to framebuffer directly like we are |
| 2616 | * doing here. |
| 2617 | */ |
| 2618 | x2 = image->dx + image->width; |
| 2619 | y2 = image->dy + image->height; |
| 2620 | dx = image->dx; |
| 2621 | dy = image->dy; |
| 2622 | x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual; |
| 2623 | y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual; |
| 2624 | width = x2 - dx; |
| 2625 | height = y2 - dy; |
| 2626 | |
| 2627 | if (image->depth == 1) { |
| 2628 | // used for font data |
| 2629 | dst = (unsigned long *) |
| 2630 | ((unsigned long)info->screen_base & ~(BYTES_PER_LONG - 1)); |
| 2631 | dst_idx = ((unsigned long)info->screen_base & (BYTES_PER_LONG - 1)) * 8; |
| 2632 | dst_idx += dy * par->next_line * 8 + dx; |
| 2633 | src = image->data; |
| 2634 | pitch = (image->width + 7) / 8; |
| 2635 | while (height--) { |
| 2636 | |
| 2637 | if (info->var.bits_per_pixel == 1) |
| 2638 | atafb_mfb_linefill(info, par->next_line, |
| 2639 | dy, dx, width, src, |
| 2640 | image->bg_color, image->fg_color); |
| 2641 | else if (info->var.bits_per_pixel == 2) |
| 2642 | atafb_iplan2p2_linefill(info, par->next_line, |
| 2643 | dy, dx, width, src, |
| 2644 | image->bg_color, image->fg_color); |
| 2645 | else if (info->var.bits_per_pixel == 4) |
| 2646 | atafb_iplan2p4_linefill(info, par->next_line, |
| 2647 | dy, dx, width, src, |
| 2648 | image->bg_color, image->fg_color); |
| 2649 | else |
| 2650 | atafb_iplan2p8_linefill(info, par->next_line, |
| 2651 | dy, dx, width, src, |
| 2652 | image->bg_color, image->fg_color); |
| 2653 | dy++; |
| 2654 | src += pitch; |
| 2655 | } |
| 2656 | } else { |
Geert Uytterhoeven | 96f47d6 | 2008-12-21 15:48:12 +0100 | [diff] [blame] | 2657 | c2p_iplan2(info->screen_base, image->data, dx, dy, width, |
| 2658 | height, par->next_line, image->width, |
| 2659 | info->var.bits_per_pixel); |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2660 | } |
| 2661 | } |
| 2662 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2663 | static int |
Christoph Hellwig | 67a6680 | 2006-01-14 13:21:25 -0800 | [diff] [blame] | 2664 | atafb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2665 | { |
| 2666 | switch (cmd) { |
| 2667 | #ifdef FBCMD_GET_CURRENTPAR |
| 2668 | case FBCMD_GET_CURRENTPAR: |
| 2669 | if (copy_to_user((void *)arg, (void *)¤t_par, |
| 2670 | sizeof(struct atafb_par))) |
| 2671 | return -EFAULT; |
| 2672 | return 0; |
| 2673 | #endif |
| 2674 | #ifdef FBCMD_SET_CURRENTPAR |
| 2675 | case FBCMD_SET_CURRENTPAR: |
| 2676 | if (copy_from_user((void *)¤t_par, (void *)arg, |
| 2677 | sizeof(struct atafb_par))) |
| 2678 | return -EFAULT; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2679 | ata_set_par(¤t_par); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2680 | return 0; |
| 2681 | #endif |
| 2682 | } |
| 2683 | return -EINVAL; |
| 2684 | } |
| 2685 | |
| 2686 | /* (un)blank/poweroff |
| 2687 | * 0 = unblank |
| 2688 | * 1 = blank |
| 2689 | * 2 = suspend vsync |
| 2690 | * 3 = suspend hsync |
| 2691 | * 4 = off |
| 2692 | */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2693 | static int atafb_blank(int blank, struct fb_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2694 | { |
| 2695 | unsigned short black[16]; |
| 2696 | struct fb_cmap cmap; |
| 2697 | if (fbhw->blank && !fbhw->blank(blank)) |
| 2698 | return 1; |
| 2699 | if (blank) { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2700 | memset(black, 0, 16 * sizeof(unsigned short)); |
| 2701 | cmap.red = black; |
| 2702 | cmap.green = black; |
| 2703 | cmap.blue = black; |
| 2704 | cmap.transp = NULL; |
| 2705 | cmap.start = 0; |
| 2706 | cmap.len = 16; |
| 2707 | fb_set_cmap(&cmap, info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2708 | } |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2709 | #if 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2710 | else |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2711 | do_install_cmap(info); |
| 2712 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2713 | return 0; |
| 2714 | } |
| 2715 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2716 | /* |
| 2717 | * New fbcon interface ... |
| 2718 | */ |
| 2719 | |
| 2720 | /* check var by decoding var into hw par, rounding if necessary, |
| 2721 | * then encoding hw par back into new, validated var */ |
| 2722 | static int atafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) |
| 2723 | { |
| 2724 | int err; |
| 2725 | struct atafb_par par; |
| 2726 | |
| 2727 | /* Validate wanted screen parameters */ |
| 2728 | // if ((err = ata_decode_var(var, &par))) |
| 2729 | err = fbhw->decode_var(var, &par); |
| 2730 | if (err) |
| 2731 | return err; |
| 2732 | |
| 2733 | /* Encode (possibly rounded) screen parameters */ |
| 2734 | fbhw->encode_var(var, &par); |
| 2735 | return 0; |
| 2736 | } |
| 2737 | |
| 2738 | /* actually set hw par by decoding var, then setting hardware from |
| 2739 | * hw par just decoded */ |
| 2740 | static int atafb_set_par(struct fb_info *info) |
| 2741 | { |
| 2742 | struct atafb_par *par = (struct atafb_par *)info->par; |
| 2743 | |
| 2744 | /* Decode wanted screen parameters */ |
| 2745 | fbhw->decode_var(&info->var, par); |
| 2746 | fbhw->encode_fix(&info->fix, par); |
| 2747 | |
| 2748 | /* Set new videomode */ |
| 2749 | ata_set_par(par); |
| 2750 | |
| 2751 | return 0; |
| 2752 | } |
| 2753 | |
| 2754 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2755 | static struct fb_ops atafb_ops = { |
| 2756 | .owner = THIS_MODULE, |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2757 | .fb_check_var = atafb_check_var, |
| 2758 | .fb_set_par = atafb_set_par, |
| 2759 | .fb_setcolreg = atafb_setcolreg, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2760 | .fb_blank = atafb_blank, |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2761 | .fb_pan_display = atafb_pan_display, |
| 2762 | .fb_fillrect = atafb_fillrect, |
| 2763 | .fb_copyarea = atafb_copyarea, |
| 2764 | .fb_imageblit = atafb_imageblit, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2765 | .fb_ioctl = atafb_ioctl, |
| 2766 | }; |
| 2767 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2768 | static void check_default_par(int detected_mode) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2769 | { |
| 2770 | char default_name[10]; |
| 2771 | int i; |
| 2772 | struct fb_var_screeninfo var; |
| 2773 | unsigned long min_mem; |
| 2774 | |
| 2775 | /* First try the user supplied mode */ |
| 2776 | if (default_par) { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2777 | var = atafb_predefined[default_par - 1]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2778 | var.activate = FB_ACTIVATE_TEST; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2779 | if (do_fb_set_var(&var, 1)) |
| 2780 | default_par = 0; /* failed */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2781 | } |
| 2782 | /* Next is the autodetected one */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2783 | if (!default_par) { |
| 2784 | var = atafb_predefined[detected_mode - 1]; /* autodetect */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2785 | var.activate = FB_ACTIVATE_TEST; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2786 | if (!do_fb_set_var(&var, 1)) |
| 2787 | default_par = detected_mode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2788 | } |
| 2789 | /* If that also failed, try some default modes... */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2790 | if (!default_par) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2791 | /* try default1, default2... */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2792 | for (i = 1; i < 10; i++) { |
| 2793 | sprintf(default_name,"default%d", i); |
| 2794 | default_par = get_video_mode(default_name); |
| 2795 | if (!default_par) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2796 | panic("can't set default video mode"); |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2797 | var = atafb_predefined[default_par - 1]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2798 | var.activate = FB_ACTIVATE_TEST; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2799 | if (!do_fb_set_var(&var,1)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2800 | break; /* ok */ |
| 2801 | } |
| 2802 | } |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2803 | min_mem = var.xres_virtual * var.yres_virtual * var.bits_per_pixel / 8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2804 | if (default_mem_req < min_mem) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2805 | default_mem_req = min_mem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2806 | } |
| 2807 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2808 | #ifdef ATAFB_EXT |
| 2809 | static void __init atafb_setup_ext(char *spec) |
| 2810 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2811 | int xres, xres_virtual, yres, depth, planes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2812 | unsigned long addr, len; |
| 2813 | char *p; |
| 2814 | |
| 2815 | /* Format is: <xres>;<yres>;<depth>;<plane organ.>; |
| 2816 | * <screen mem addr> |
| 2817 | * [;<screen mem length>[;<vgaiobase>[;<bits-per-col>[;<colorreg-type> |
| 2818 | * [;<xres-virtual>]]]]] |
| 2819 | * |
| 2820 | * 09/23/97 Juergen |
| 2821 | * <xres_virtual>: hardware's x-resolution (f.e. ProMST) |
| 2822 | * |
| 2823 | * Even xres_virtual is available, we neither support panning nor hw-scrolling! |
| 2824 | */ |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2825 | p = strsep(&spec, ";"); |
| 2826 | if (!p || !*p) |
| 2827 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2828 | xres_virtual = xres = simple_strtoul(p, NULL, 10); |
| 2829 | if (xres <= 0) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2830 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2831 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2832 | p = strsep(&spec, ";"); |
| 2833 | if (!p || !*p) |
| 2834 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2835 | yres = simple_strtoul(p, NULL, 10); |
| 2836 | if (yres <= 0) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2837 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2838 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2839 | p = strsep(&spec, ";"); |
| 2840 | if (!p || !*p) |
| 2841 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2842 | depth = simple_strtoul(p, NULL, 10); |
| 2843 | if (depth != 1 && depth != 2 && depth != 4 && depth != 8 && |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2844 | depth != 16 && depth != 24) |
| 2845 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2846 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2847 | p = strsep(&spec, ";"); |
| 2848 | if (!p || !*p) |
| 2849 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2850 | if (*p == 'i') |
| 2851 | planes = FB_TYPE_INTERLEAVED_PLANES; |
| 2852 | else if (*p == 'p') |
| 2853 | planes = FB_TYPE_PACKED_PIXELS; |
| 2854 | else if (*p == 'n') |
| 2855 | planes = FB_TYPE_PLANES; |
| 2856 | else if (*p == 't') |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2857 | planes = -1; /* true color */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2858 | else |
| 2859 | return; |
| 2860 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2861 | p = strsep(&spec, ";"); |
| 2862 | if (!p || !*p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2863 | return; |
| 2864 | addr = simple_strtoul(p, NULL, 0); |
| 2865 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2866 | p = strsep(&spec, ";"); |
| 2867 | if (!p || !*p) |
| 2868 | len = xres * yres * depth / 8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2869 | else |
| 2870 | len = simple_strtoul(p, NULL, 0); |
| 2871 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2872 | p = strsep(&spec, ";"); |
| 2873 | if (p && *p) |
| 2874 | external_vgaiobase = simple_strtoul(p, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2875 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2876 | p = strsep(&spec, ";"); |
| 2877 | if (p && *p) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2878 | external_bitspercol = simple_strtoul(p, NULL, 0); |
| 2879 | if (external_bitspercol > 8) |
| 2880 | external_bitspercol = 8; |
| 2881 | else if (external_bitspercol < 1) |
| 2882 | external_bitspercol = 1; |
| 2883 | } |
| 2884 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2885 | p = strsep(&spec, ";"); |
| 2886 | if (p && *p) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2887 | if (!strcmp(p, "vga")) |
| 2888 | external_card_type = IS_VGA; |
| 2889 | if (!strcmp(p, "mv300")) |
| 2890 | external_card_type = IS_MV300; |
| 2891 | } |
| 2892 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2893 | p = strsep(&spec, ";"); |
| 2894 | if (p && *p) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2895 | xres_virtual = simple_strtoul(p, NULL, 10); |
| 2896 | if (xres_virtual < xres) |
| 2897 | xres_virtual = xres; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2898 | if (xres_virtual * yres * depth / 8 > len) |
| 2899 | len = xres_virtual * yres * depth / 8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2900 | } |
| 2901 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2902 | external_xres = xres; |
| 2903 | external_xres_virtual = xres_virtual; |
| 2904 | external_yres = yres; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2905 | external_depth = depth; |
| 2906 | external_pmode = planes; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2907 | external_addr = (void *)addr; |
| 2908 | external_len = len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2909 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2910 | if (external_card_type == IS_MV300) { |
| 2911 | switch (external_depth) { |
| 2912 | case 1: |
| 2913 | MV300_reg = MV300_reg_1bit; |
| 2914 | break; |
| 2915 | case 4: |
| 2916 | MV300_reg = MV300_reg_4bit; |
| 2917 | break; |
| 2918 | case 8: |
| 2919 | MV300_reg = MV300_reg_8bit; |
| 2920 | break; |
| 2921 | } |
| 2922 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2923 | } |
| 2924 | #endif /* ATAFB_EXT */ |
| 2925 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2926 | static void __init atafb_setup_int(char *spec) |
| 2927 | { |
| 2928 | /* Format to config extended internal video hardware like OverScan: |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2929 | * "internal:<xres>;<yres>;<xres_max>;<yres_max>;<offset>" |
| 2930 | * Explanation: |
| 2931 | * <xres>: x-resolution |
| 2932 | * <yres>: y-resolution |
| 2933 | * The following are only needed if you have an overscan which |
| 2934 | * needs a black border: |
| 2935 | * <xres_max>: max. length of a line in pixels your OverScan hardware would allow |
| 2936 | * <yres_max>: max. number of lines your OverScan hardware would allow |
| 2937 | * <offset>: Offset from physical beginning to visible beginning |
| 2938 | * of screen in bytes |
| 2939 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2940 | int xres; |
| 2941 | char *p; |
| 2942 | |
| 2943 | if (!(p = strsep(&spec, ";")) || !*p) |
| 2944 | return; |
| 2945 | xres = simple_strtoul(p, NULL, 10); |
| 2946 | if (!(p = strsep(&spec, ";")) || !*p) |
| 2947 | return; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2948 | sttt_xres = xres; |
| 2949 | tt_yres = st_yres = simple_strtoul(p, NULL, 10); |
| 2950 | if ((p = strsep(&spec, ";")) && *p) |
| 2951 | sttt_xres_virtual = simple_strtoul(p, NULL, 10); |
| 2952 | if ((p = strsep(&spec, ";")) && *p) |
| 2953 | sttt_yres_virtual = simple_strtoul(p, NULL, 0); |
| 2954 | if ((p = strsep(&spec, ";")) && *p) |
| 2955 | ovsc_offset = simple_strtoul(p, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2956 | |
| 2957 | if (ovsc_offset || (sttt_yres_virtual != st_yres)) |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 2958 | use_hwscroll = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2959 | } |
| 2960 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2961 | #ifdef ATAFB_FALCON |
| 2962 | static void __init atafb_setup_mcap(char *spec) |
| 2963 | { |
| 2964 | char *p; |
| 2965 | int vmin, vmax, hmin, hmax; |
| 2966 | |
| 2967 | /* Format for monitor capabilities is: <Vmin>;<Vmax>;<Hmin>;<Hmax> |
| 2968 | * <V*> vertical freq. in Hz |
| 2969 | * <H*> horizontal freq. in kHz |
| 2970 | */ |
| 2971 | if (!(p = strsep(&spec, ";")) || !*p) |
| 2972 | return; |
| 2973 | vmin = simple_strtoul(p, NULL, 10); |
| 2974 | if (vmin <= 0) |
| 2975 | return; |
| 2976 | if (!(p = strsep(&spec, ";")) || !*p) |
| 2977 | return; |
| 2978 | vmax = simple_strtoul(p, NULL, 10); |
| 2979 | if (vmax <= 0 || vmax <= vmin) |
| 2980 | return; |
| 2981 | if (!(p = strsep(&spec, ";")) || !*p) |
| 2982 | return; |
| 2983 | hmin = 1000 * simple_strtoul(p, NULL, 10); |
| 2984 | if (hmin <= 0) |
| 2985 | return; |
| 2986 | if (!(p = strsep(&spec, "")) || !*p) |
| 2987 | return; |
| 2988 | hmax = 1000 * simple_strtoul(p, NULL, 10); |
| 2989 | if (hmax <= 0 || hmax <= hmin) |
| 2990 | return; |
| 2991 | |
| 2992 | fb_info.monspecs.vfmin = vmin; |
| 2993 | fb_info.monspecs.vfmax = vmax; |
| 2994 | fb_info.monspecs.hfmin = hmin; |
| 2995 | fb_info.monspecs.hfmax = hmax; |
| 2996 | } |
| 2997 | #endif /* ATAFB_FALCON */ |
| 2998 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2999 | static void __init atafb_setup_user(char *spec) |
| 3000 | { |
| 3001 | /* Format of user defined video mode is: <xres>;<yres>;<depth> |
| 3002 | */ |
| 3003 | char *p; |
| 3004 | int xres, yres, depth, temp; |
| 3005 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3006 | p = strsep(&spec, ";"); |
| 3007 | if (!p || !*p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3008 | return; |
| 3009 | xres = simple_strtoul(p, NULL, 10); |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3010 | p = strsep(&spec, ";"); |
| 3011 | if (!p || !*p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3012 | return; |
| 3013 | yres = simple_strtoul(p, NULL, 10); |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3014 | p = strsep(&spec, ""); |
| 3015 | if (!p || !*p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3016 | return; |
| 3017 | depth = simple_strtoul(p, NULL, 10); |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3018 | temp = get_video_mode("user0"); |
| 3019 | if (temp) { |
| 3020 | default_par = temp; |
| 3021 | atafb_predefined[default_par - 1].xres = xres; |
| 3022 | atafb_predefined[default_par - 1].yres = yres; |
| 3023 | atafb_predefined[default_par - 1].bits_per_pixel = depth; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3024 | } |
| 3025 | } |
| 3026 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3027 | int __init atafb_setup(char *options) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3028 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3029 | char *this_opt; |
| 3030 | int temp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3031 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3032 | if (!options || !*options) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3033 | return 0; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3034 | |
| 3035 | while ((this_opt = strsep(&options, ",")) != NULL) { |
| 3036 | if (!*this_opt) |
| 3037 | continue; |
| 3038 | if ((temp = get_video_mode(this_opt))) { |
| 3039 | default_par = temp; |
| 3040 | mode_option = this_opt; |
| 3041 | } else if (!strcmp(this_opt, "inverse")) |
| 3042 | inverse = 1; |
| 3043 | else if (!strncmp(this_opt, "hwscroll_", 9)) { |
| 3044 | hwscroll = simple_strtoul(this_opt + 9, NULL, 10); |
| 3045 | if (hwscroll < 0) |
| 3046 | hwscroll = 0; |
| 3047 | if (hwscroll > 200) |
| 3048 | hwscroll = 200; |
| 3049 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3050 | #ifdef ATAFB_EXT |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3051 | else if (!strcmp(this_opt, "mv300")) { |
| 3052 | external_bitspercol = 8; |
| 3053 | external_card_type = IS_MV300; |
| 3054 | } else if (!strncmp(this_opt, "external:", 9)) |
| 3055 | atafb_setup_ext(this_opt + 9); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3056 | #endif |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3057 | else if (!strncmp(this_opt, "internal:", 9)) |
| 3058 | atafb_setup_int(this_opt + 9); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3059 | #ifdef ATAFB_FALCON |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3060 | else if (!strncmp(this_opt, "eclock:", 7)) { |
| 3061 | fext.f = simple_strtoul(this_opt + 7, NULL, 10); |
| 3062 | /* external pixelclock in kHz --> ps */ |
| 3063 | fext.t = 1000000000 / fext.f; |
| 3064 | fext.f *= 1000; |
| 3065 | } else if (!strncmp(this_opt, "monitorcap:", 11)) |
| 3066 | atafb_setup_mcap(this_opt + 11); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3067 | #endif |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3068 | else if (!strcmp(this_opt, "keep")) |
| 3069 | DontCalcRes = 1; |
| 3070 | else if (!strncmp(this_opt, "R", 1)) |
| 3071 | atafb_setup_user(this_opt + 1); |
| 3072 | } |
| 3073 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3074 | } |
| 3075 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3076 | int __init atafb_init(void) |
| 3077 | { |
Geert Uytterhoeven | 639274d | 2008-12-30 14:10:11 +0100 | [diff] [blame] | 3078 | int pad, detected_mode, error; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3079 | unsigned int defmode = 0; |
| 3080 | unsigned long mem_req; |
| 3081 | |
| 3082 | #ifndef MODULE |
| 3083 | char *option = NULL; |
| 3084 | |
| 3085 | if (fb_get_options("atafb", &option)) |
| 3086 | return -ENODEV; |
| 3087 | atafb_setup(option); |
| 3088 | #endif |
| 3089 | printk("atafb_init: start\n"); |
| 3090 | |
| 3091 | if (!MACH_IS_ATARI) |
Geert Uytterhoeven | e945b56 | 2008-07-17 21:16:10 +0200 | [diff] [blame] | 3092 | return -ENODEV; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3093 | |
| 3094 | do { |
| 3095 | #ifdef ATAFB_EXT |
| 3096 | if (external_addr) { |
| 3097 | printk("atafb_init: initializing external hw\n"); |
| 3098 | fbhw = &ext_switch; |
| 3099 | atafb_ops.fb_setcolreg = &ext_setcolreg; |
| 3100 | defmode = DEFMODE_EXT; |
| 3101 | break; |
| 3102 | } |
| 3103 | #endif |
| 3104 | #ifdef ATAFB_TT |
| 3105 | if (ATARIHW_PRESENT(TT_SHIFTER)) { |
| 3106 | printk("atafb_init: initializing TT hw\n"); |
| 3107 | fbhw = &tt_switch; |
| 3108 | atafb_ops.fb_setcolreg = &tt_setcolreg; |
| 3109 | defmode = DEFMODE_TT; |
| 3110 | break; |
| 3111 | } |
| 3112 | #endif |
| 3113 | #ifdef ATAFB_FALCON |
| 3114 | if (ATARIHW_PRESENT(VIDEL_SHIFTER)) { |
| 3115 | printk("atafb_init: initializing Falcon hw\n"); |
| 3116 | fbhw = &falcon_switch; |
| 3117 | atafb_ops.fb_setcolreg = &falcon_setcolreg; |
Geert Uytterhoeven | 639274d | 2008-12-30 14:10:11 +0100 | [diff] [blame] | 3118 | error = request_irq(IRQ_AUTO_4, falcon_vbl_switcher, |
| 3119 | IRQ_TYPE_PRIO, |
| 3120 | "framebuffer/modeswitch", |
| 3121 | falcon_vbl_switcher); |
| 3122 | if (error) |
| 3123 | return error; |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3124 | defmode = DEFMODE_F30; |
| 3125 | break; |
| 3126 | } |
| 3127 | #endif |
| 3128 | #ifdef ATAFB_STE |
| 3129 | if (ATARIHW_PRESENT(STND_SHIFTER) || |
| 3130 | ATARIHW_PRESENT(EXTD_SHIFTER)) { |
| 3131 | printk("atafb_init: initializing ST/E hw\n"); |
| 3132 | fbhw = &st_switch; |
| 3133 | atafb_ops.fb_setcolreg = &stste_setcolreg; |
| 3134 | defmode = DEFMODE_STE; |
| 3135 | break; |
| 3136 | } |
| 3137 | fbhw = &st_switch; |
| 3138 | atafb_ops.fb_setcolreg = &stste_setcolreg; |
| 3139 | printk("Cannot determine video hardware; defaulting to ST(e)\n"); |
| 3140 | #else /* ATAFB_STE */ |
| 3141 | /* no default driver included */ |
| 3142 | /* Nobody will ever see this message :-) */ |
| 3143 | panic("Cannot initialize video hardware"); |
| 3144 | #endif |
| 3145 | } while (0); |
| 3146 | |
| 3147 | /* Multisync monitor capabilities */ |
| 3148 | /* Atari-TOS defaults if no boot option present */ |
| 3149 | if (fb_info.monspecs.hfmin == 0) { |
| 3150 | fb_info.monspecs.hfmin = 31000; |
| 3151 | fb_info.monspecs.hfmax = 32000; |
| 3152 | fb_info.monspecs.vfmin = 58; |
| 3153 | fb_info.monspecs.vfmax = 62; |
| 3154 | } |
| 3155 | |
| 3156 | detected_mode = fbhw->detect(); |
| 3157 | check_default_par(detected_mode); |
| 3158 | #ifdef ATAFB_EXT |
| 3159 | if (!external_addr) { |
| 3160 | #endif /* ATAFB_EXT */ |
| 3161 | mem_req = default_mem_req + ovsc_offset + ovsc_addlen; |
| 3162 | mem_req = PAGE_ALIGN(mem_req) + PAGE_SIZE; |
| 3163 | screen_base = atari_stram_alloc(mem_req, "atafb"); |
| 3164 | if (!screen_base) |
| 3165 | panic("Cannot allocate screen memory"); |
| 3166 | memset(screen_base, 0, mem_req); |
| 3167 | pad = -(unsigned long)screen_base & (PAGE_SIZE - 1); |
| 3168 | screen_base += pad; |
| 3169 | real_screen_base = screen_base + ovsc_offset; |
| 3170 | screen_len = (mem_req - pad - ovsc_offset) & PAGE_MASK; |
| 3171 | st_ovsc_switch(); |
| 3172 | if (CPU_IS_040_OR_060) { |
| 3173 | /* On a '040+, the cache mode of video RAM must be set to |
| 3174 | * write-through also for internal video hardware! */ |
| 3175 | cache_push(virt_to_phys(screen_base), screen_len); |
| 3176 | kernel_set_cachemode(screen_base, screen_len, |
| 3177 | IOMAP_WRITETHROUGH); |
| 3178 | } |
| 3179 | printk("atafb: screen_base %p real_screen_base %p screen_len %d\n", |
| 3180 | screen_base, real_screen_base, screen_len); |
| 3181 | #ifdef ATAFB_EXT |
| 3182 | } else { |
| 3183 | /* Map the video memory (physical address given) to somewhere |
| 3184 | * in the kernel address space. |
| 3185 | */ |
| 3186 | external_addr = ioremap_writethrough((unsigned long)external_addr, |
| 3187 | external_len); |
| 3188 | if (external_vgaiobase) |
| 3189 | external_vgaiobase = |
| 3190 | (unsigned long)ioremap(external_vgaiobase, 0x10000); |
| 3191 | screen_base = |
| 3192 | real_screen_base = external_addr; |
| 3193 | screen_len = external_len & PAGE_MASK; |
| 3194 | memset (screen_base, 0, external_len); |
| 3195 | } |
| 3196 | #endif /* ATAFB_EXT */ |
| 3197 | |
| 3198 | // strcpy(fb_info.mode->name, "Atari Builtin "); |
| 3199 | fb_info.fbops = &atafb_ops; |
| 3200 | // try to set default (detected; requested) var |
| 3201 | do_fb_set_var(&atafb_predefined[default_par - 1], 1); |
| 3202 | // reads hw state into current par, which may not be sane yet |
| 3203 | ata_get_par(¤t_par); |
| 3204 | fb_info.par = ¤t_par; |
| 3205 | // tries to read from HW which may not be initialized yet |
| 3206 | // so set sane var first, then call atafb_set_par |
| 3207 | atafb_get_var(&fb_info.var, &fb_info); |
Geert Uytterhoeven | 7451141 | 2008-11-18 21:13:01 +0100 | [diff] [blame] | 3208 | |
| 3209 | #ifdef ATAFB_FALCON |
| 3210 | fb_info.pseudo_palette = current_par.hw.falcon.pseudo_palette; |
| 3211 | #endif |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3212 | fb_info.flags = FBINFO_FLAG_DEFAULT; |
| 3213 | |
| 3214 | if (!fb_find_mode(&fb_info.var, &fb_info, mode_option, atafb_modedb, |
| 3215 | NUM_TOTAL_MODES, &atafb_modedb[defmode], |
| 3216 | fb_info.var.bits_per_pixel)) { |
| 3217 | return -EINVAL; |
| 3218 | } |
| 3219 | |
Geert Uytterhoeven | da8513c | 2008-07-17 21:16:19 +0200 | [diff] [blame] | 3220 | fb_videomode_to_modelist(atafb_modedb, NUM_TOTAL_MODES, |
| 3221 | &fb_info.modelist); |
| 3222 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3223 | atafb_set_disp(&fb_info); |
| 3224 | |
| 3225 | fb_alloc_cmap(&(fb_info.cmap), 1 << fb_info.var.bits_per_pixel, 0); |
| 3226 | |
| 3227 | |
| 3228 | printk("Determined %dx%d, depth %d\n", |
| 3229 | fb_info.var.xres, fb_info.var.yres, fb_info.var.bits_per_pixel); |
| 3230 | if ((fb_info.var.xres != fb_info.var.xres_virtual) || |
| 3231 | (fb_info.var.yres != fb_info.var.yres_virtual)) |
| 3232 | printk(" virtual %dx%d\n", fb_info.var.xres_virtual, |
| 3233 | fb_info.var.yres_virtual); |
| 3234 | |
| 3235 | if (register_framebuffer(&fb_info) < 0) { |
| 3236 | #ifdef ATAFB_EXT |
| 3237 | if (external_addr) { |
| 3238 | iounmap(external_addr); |
| 3239 | external_addr = NULL; |
| 3240 | } |
| 3241 | if (external_vgaiobase) { |
| 3242 | iounmap((void*)external_vgaiobase); |
| 3243 | external_vgaiobase = 0; |
| 3244 | } |
| 3245 | #endif |
| 3246 | return -EINVAL; |
| 3247 | } |
| 3248 | |
| 3249 | // FIXME: mode needs setting! |
| 3250 | //printk("fb%d: %s frame buffer device, using %dK of video memory\n", |
| 3251 | // fb_info.node, fb_info.mode->name, screen_len>>10); |
| 3252 | printk("fb%d: frame buffer device, using %dK of video memory\n", |
| 3253 | fb_info.node, screen_len >> 10); |
| 3254 | |
| 3255 | /* TODO: This driver cannot be unloaded yet */ |
| 3256 | return 0; |
| 3257 | } |
| 3258 | |
| 3259 | module_init(atafb_init); |
| 3260 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3261 | #ifdef MODULE |
| 3262 | MODULE_LICENSE("GPL"); |
| 3263 | |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3264 | int cleanup_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3265 | { |
Michael Schmitz | a100501 | 2007-05-01 22:32:39 +0200 | [diff] [blame] | 3266 | unregister_framebuffer(&fb_info); |
| 3267 | return atafb_deinit(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3268 | } |
| 3269 | #endif /* MODULE */ |