York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. |
| 3 | * |
| 4 | * Freescale DIU Frame Buffer device driver |
| 5 | * |
| 6 | * Authors: Hongjun Chen <hong-jun.chen@freescale.com> |
| 7 | * Paul Widmer <paul.widmer@freescale.com> |
| 8 | * Srikanth Srinivasan <srikanth.srinivasan@freescale.com> |
| 9 | * York Sun <yorksun@freescale.com> |
| 10 | * |
| 11 | * Based on imxfb.c Copyright (C) 2004 S.Hauer, Pengutronix |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify it |
| 14 | * under the terms of the GNU General Public License as published by the |
| 15 | * Free Software Foundation; either version 2 of the License, or (at your |
| 16 | * option) any later version. |
| 17 | * |
| 18 | */ |
| 19 | |
| 20 | #include <linux/module.h> |
| 21 | #include <linux/kernel.h> |
| 22 | #include <linux/errno.h> |
| 23 | #include <linux/string.h> |
| 24 | #include <linux/slab.h> |
| 25 | #include <linux/fb.h> |
| 26 | #include <linux/init.h> |
| 27 | #include <linux/dma-mapping.h> |
| 28 | #include <linux/platform_device.h> |
| 29 | #include <linux/interrupt.h> |
| 30 | #include <linux/clk.h> |
| 31 | #include <linux/uaccess.h> |
| 32 | #include <linux/vmalloc.h> |
| 33 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 34 | #include <sysdev/fsl_soc.h> |
Anatolij Gustschin | 0814a97 | 2010-07-23 04:00:36 +0000 | [diff] [blame] | 35 | #include <linux/fsl-diu-fb.h> |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 36 | #include "edid.h" |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 37 | |
| 38 | /* |
Timur Tabi | 63cf8df | 2011-09-15 16:44:51 -0500 | [diff] [blame] | 39 | * List of supported video modes |
| 40 | * |
| 41 | * The first entry is the default video mode |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 42 | */ |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 43 | static struct fb_videomode __devinitdata fsl_diu_mode_db[] = { |
| 44 | { |
| 45 | .name = "1024x768-60", |
| 46 | .refresh = 60, |
| 47 | .xres = 1024, |
| 48 | .yres = 768, |
| 49 | .pixclock = 15385, |
| 50 | .left_margin = 160, |
| 51 | .right_margin = 24, |
| 52 | .upper_margin = 29, |
| 53 | .lower_margin = 3, |
| 54 | .hsync_len = 136, |
| 55 | .vsync_len = 6, |
| 56 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 57 | .vmode = FB_VMODE_NONINTERLACED |
| 58 | }, |
| 59 | { |
| 60 | .name = "1024x768-70", |
| 61 | .refresh = 70, |
| 62 | .xres = 1024, |
| 63 | .yres = 768, |
| 64 | .pixclock = 16886, |
| 65 | .left_margin = 3, |
| 66 | .right_margin = 3, |
| 67 | .upper_margin = 2, |
| 68 | .lower_margin = 2, |
| 69 | .hsync_len = 40, |
| 70 | .vsync_len = 18, |
| 71 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 72 | .vmode = FB_VMODE_NONINTERLACED |
| 73 | }, |
| 74 | { |
| 75 | .name = "1024x768-75", |
| 76 | .refresh = 75, |
| 77 | .xres = 1024, |
| 78 | .yres = 768, |
| 79 | .pixclock = 15009, |
| 80 | .left_margin = 3, |
| 81 | .right_margin = 3, |
| 82 | .upper_margin = 2, |
| 83 | .lower_margin = 2, |
| 84 | .hsync_len = 80, |
| 85 | .vsync_len = 32, |
| 86 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 87 | .vmode = FB_VMODE_NONINTERLACED |
| 88 | }, |
| 89 | { |
| 90 | .name = "1280x1024-60", |
| 91 | .refresh = 60, |
| 92 | .xres = 1280, |
| 93 | .yres = 1024, |
| 94 | .pixclock = 9375, |
| 95 | .left_margin = 38, |
| 96 | .right_margin = 128, |
| 97 | .upper_margin = 2, |
| 98 | .lower_margin = 7, |
| 99 | .hsync_len = 216, |
| 100 | .vsync_len = 37, |
| 101 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 102 | .vmode = FB_VMODE_NONINTERLACED |
| 103 | }, |
| 104 | { |
| 105 | .name = "1280x1024-70", |
| 106 | .refresh = 70, |
| 107 | .xres = 1280, |
| 108 | .yres = 1024, |
| 109 | .pixclock = 9380, |
| 110 | .left_margin = 6, |
| 111 | .right_margin = 6, |
| 112 | .upper_margin = 4, |
| 113 | .lower_margin = 4, |
| 114 | .hsync_len = 60, |
| 115 | .vsync_len = 94, |
| 116 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 117 | .vmode = FB_VMODE_NONINTERLACED |
| 118 | }, |
| 119 | { |
| 120 | .name = "1280x1024-75", |
| 121 | .refresh = 75, |
| 122 | .xres = 1280, |
| 123 | .yres = 1024, |
| 124 | .pixclock = 9380, |
| 125 | .left_margin = 6, |
| 126 | .right_margin = 6, |
| 127 | .upper_margin = 4, |
| 128 | .lower_margin = 4, |
| 129 | .hsync_len = 60, |
| 130 | .vsync_len = 15, |
| 131 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 132 | .vmode = FB_VMODE_NONINTERLACED |
| 133 | }, |
| 134 | { |
| 135 | .name = "320x240", /* for AOI only */ |
| 136 | .refresh = 60, |
| 137 | .xres = 320, |
| 138 | .yres = 240, |
| 139 | .pixclock = 15385, |
| 140 | .left_margin = 0, |
| 141 | .right_margin = 0, |
| 142 | .upper_margin = 0, |
| 143 | .lower_margin = 0, |
| 144 | .hsync_len = 0, |
| 145 | .vsync_len = 0, |
| 146 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 147 | .vmode = FB_VMODE_NONINTERLACED |
| 148 | }, |
| 149 | { |
| 150 | .name = "1280x480-60", |
| 151 | .refresh = 60, |
| 152 | .xres = 1280, |
| 153 | .yres = 480, |
| 154 | .pixclock = 18939, |
| 155 | .left_margin = 353, |
| 156 | .right_margin = 47, |
| 157 | .upper_margin = 39, |
| 158 | .lower_margin = 4, |
| 159 | .hsync_len = 8, |
| 160 | .vsync_len = 2, |
| 161 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 162 | .vmode = FB_VMODE_NONINTERLACED |
| 163 | }, |
| 164 | }; |
| 165 | |
| 166 | static char *fb_mode = "1024x768-32@60"; |
| 167 | static unsigned long default_bpp = 32; |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 168 | static enum fsl_diu_monitor_port monitor_port; |
| 169 | static char *monitor_string; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 170 | |
| 171 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
| 172 | static u8 *coherence_data; |
| 173 | static size_t coherence_data_size; |
| 174 | static unsigned int d_cache_line_size; |
| 175 | #endif |
| 176 | |
| 177 | static DEFINE_SPINLOCK(diu_lock); |
| 178 | |
| 179 | struct fsl_diu_data { |
| 180 | struct fb_info *fsl_diu_info[FSL_AOI_NUM - 1]; |
| 181 | /*FSL_AOI_NUM has one dummy AOI */ |
| 182 | struct device_attribute dev_attr; |
| 183 | struct diu_ad *dummy_ad; |
| 184 | void *dummy_aoi_virt; |
| 185 | unsigned int irq; |
| 186 | int fb_enabled; |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 187 | enum fsl_diu_monitor_port monitor_port; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 188 | }; |
| 189 | |
| 190 | struct mfb_info { |
| 191 | int index; |
| 192 | int type; |
| 193 | char *id; |
| 194 | int registered; |
| 195 | int blank; |
| 196 | unsigned long pseudo_palette[16]; |
| 197 | struct diu_ad *ad; |
| 198 | int cursor_reset; |
| 199 | unsigned char g_alpha; |
| 200 | unsigned int count; |
| 201 | int x_aoi_d; /* aoi display x offset to physical screen */ |
| 202 | int y_aoi_d; /* aoi display y offset to physical screen */ |
| 203 | struct fsl_diu_data *parent; |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 204 | u8 *edid_data; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 205 | }; |
| 206 | |
| 207 | |
| 208 | static struct mfb_info mfb_template[] = { |
| 209 | { /* AOI 0 for plane 0 */ |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 210 | .index = 0, |
| 211 | .type = MFB_TYPE_OUTPUT, |
| 212 | .id = "Panel0", |
| 213 | .registered = 0, |
| 214 | .count = 0, |
| 215 | .x_aoi_d = 0, |
| 216 | .y_aoi_d = 0, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 217 | }, |
| 218 | { /* AOI 0 for plane 1 */ |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 219 | .index = 1, |
| 220 | .type = MFB_TYPE_OUTPUT, |
| 221 | .id = "Panel1 AOI0", |
| 222 | .registered = 0, |
| 223 | .g_alpha = 0xff, |
| 224 | .count = 0, |
| 225 | .x_aoi_d = 0, |
| 226 | .y_aoi_d = 0, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 227 | }, |
| 228 | { /* AOI 1 for plane 1 */ |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 229 | .index = 2, |
| 230 | .type = MFB_TYPE_OUTPUT, |
| 231 | .id = "Panel1 AOI1", |
| 232 | .registered = 0, |
| 233 | .g_alpha = 0xff, |
| 234 | .count = 0, |
| 235 | .x_aoi_d = 0, |
| 236 | .y_aoi_d = 480, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 237 | }, |
| 238 | { /* AOI 0 for plane 2 */ |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 239 | .index = 3, |
| 240 | .type = MFB_TYPE_OUTPUT, |
| 241 | .id = "Panel2 AOI0", |
| 242 | .registered = 0, |
| 243 | .g_alpha = 0xff, |
| 244 | .count = 0, |
| 245 | .x_aoi_d = 640, |
| 246 | .y_aoi_d = 0, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 247 | }, |
| 248 | { /* AOI 1 for plane 2 */ |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 249 | .index = 4, |
| 250 | .type = MFB_TYPE_OUTPUT, |
| 251 | .id = "Panel2 AOI1", |
| 252 | .registered = 0, |
| 253 | .g_alpha = 0xff, |
| 254 | .count = 0, |
| 255 | .x_aoi_d = 640, |
| 256 | .y_aoi_d = 480, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 257 | }, |
| 258 | }; |
| 259 | |
| 260 | static struct diu_hw dr = { |
| 261 | .mode = MFB_MODE1, |
| 262 | .reg_lock = __SPIN_LOCK_UNLOCKED(diu_hw.reg_lock), |
| 263 | }; |
| 264 | |
| 265 | static struct diu_pool pool; |
| 266 | |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 267 | /** |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 268 | * fsl_diu_name_to_port - convert a port name to a monitor port enum |
| 269 | * |
| 270 | * Takes the name of a monitor port ("dvi", "lvds", or "dlvds") and returns |
| 271 | * the enum fsl_diu_monitor_port that corresponds to that string. |
| 272 | * |
| 273 | * For compatibility with older versions, a number ("0", "1", or "2") is also |
| 274 | * supported. |
| 275 | * |
| 276 | * If the string is unknown, DVI is assumed. |
| 277 | * |
| 278 | * If the particular port is not supported by the platform, another port |
| 279 | * (platform-specific) is chosen instead. |
| 280 | */ |
| 281 | static enum fsl_diu_monitor_port fsl_diu_name_to_port(const char *s) |
| 282 | { |
| 283 | enum fsl_diu_monitor_port port = FSL_DIU_PORT_DVI; |
| 284 | unsigned long val; |
| 285 | |
| 286 | if (s) { |
| 287 | if (!strict_strtoul(s, 10, &val) && (val <= 2)) |
| 288 | port = (enum fsl_diu_monitor_port) val; |
| 289 | else if (strncmp(s, "lvds", 4) == 0) |
| 290 | port = FSL_DIU_PORT_LVDS; |
| 291 | else if (strncmp(s, "dlvds", 5) == 0) |
| 292 | port = FSL_DIU_PORT_DLVDS; |
| 293 | } |
| 294 | |
| 295 | return diu_ops.valid_monitor_port(port); |
| 296 | } |
| 297 | |
| 298 | /** |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 299 | * fsl_diu_alloc - allocate memory for the DIU |
| 300 | * @size: number of bytes to allocate |
| 301 | * @param: returned physical address of memory |
| 302 | * |
| 303 | * This function allocates a physically-contiguous block of memory. |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 304 | */ |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 305 | static void *fsl_diu_alloc(size_t size, phys_addr_t *phys) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 306 | { |
| 307 | void *virt; |
| 308 | |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 309 | virt = alloc_pages_exact(size, GFP_DMA | __GFP_ZERO); |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 310 | if (virt) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 311 | *phys = virt_to_phys(virt); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 312 | |
| 313 | return virt; |
| 314 | } |
| 315 | |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 316 | /** |
| 317 | * fsl_diu_free - release DIU memory |
| 318 | * @virt: pointer returned by fsl_diu_alloc() |
| 319 | * @size: number of bytes allocated by fsl_diu_alloc() |
| 320 | * |
| 321 | * This function releases memory allocated by fsl_diu_alloc(). |
| 322 | */ |
| 323 | static void fsl_diu_free(void *virt, size_t size) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 324 | { |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 325 | if (virt && size) |
| 326 | free_pages_exact(virt, size); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 327 | } |
| 328 | |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 329 | /* |
| 330 | * Workaround for failed writing desc register of planes. |
| 331 | * Needed with MPC5121 DIU rev 2.0 silicon. |
| 332 | */ |
| 333 | void wr_reg_wa(u32 *reg, u32 val) |
| 334 | { |
| 335 | do { |
| 336 | out_be32(reg, val); |
| 337 | } while (in_be32(reg) != val); |
| 338 | } |
| 339 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 340 | static int fsl_diu_enable_panel(struct fb_info *info) |
| 341 | { |
| 342 | struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par; |
| 343 | struct diu *hw = dr.diu_reg; |
| 344 | struct diu_ad *ad = mfbi->ad; |
| 345 | struct fsl_diu_data *machine_data = mfbi->parent; |
| 346 | int res = 0; |
| 347 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 348 | if (mfbi->type != MFB_TYPE_OFF) { |
| 349 | switch (mfbi->index) { |
| 350 | case 0: /* plane 0 */ |
| 351 | if (hw->desc[0] != ad->paddr) |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 352 | wr_reg_wa(&hw->desc[0], ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 353 | break; |
| 354 | case 1: /* plane 1 AOI 0 */ |
| 355 | cmfbi = machine_data->fsl_diu_info[2]->par; |
| 356 | if (hw->desc[1] != ad->paddr) { /* AOI0 closed */ |
| 357 | if (cmfbi->count > 0) /* AOI1 open */ |
| 358 | ad->next_ad = |
| 359 | cpu_to_le32(cmfbi->ad->paddr); |
| 360 | else |
| 361 | ad->next_ad = 0; |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 362 | wr_reg_wa(&hw->desc[1], ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 363 | } |
| 364 | break; |
| 365 | case 3: /* plane 2 AOI 0 */ |
| 366 | cmfbi = machine_data->fsl_diu_info[4]->par; |
| 367 | if (hw->desc[2] != ad->paddr) { /* AOI0 closed */ |
| 368 | if (cmfbi->count > 0) /* AOI1 open */ |
| 369 | ad->next_ad = |
| 370 | cpu_to_le32(cmfbi->ad->paddr); |
| 371 | else |
| 372 | ad->next_ad = 0; |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 373 | wr_reg_wa(&hw->desc[2], ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 374 | } |
| 375 | break; |
| 376 | case 2: /* plane 1 AOI 1 */ |
| 377 | pmfbi = machine_data->fsl_diu_info[1]->par; |
| 378 | ad->next_ad = 0; |
| 379 | if (hw->desc[1] == machine_data->dummy_ad->paddr) |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 380 | wr_reg_wa(&hw->desc[1], ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 381 | else /* AOI0 open */ |
| 382 | pmfbi->ad->next_ad = cpu_to_le32(ad->paddr); |
| 383 | break; |
| 384 | case 4: /* plane 2 AOI 1 */ |
| 385 | pmfbi = machine_data->fsl_diu_info[3]->par; |
| 386 | ad->next_ad = 0; |
| 387 | if (hw->desc[2] == machine_data->dummy_ad->paddr) |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 388 | wr_reg_wa(&hw->desc[2], ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 389 | else /* AOI0 was open */ |
| 390 | pmfbi->ad->next_ad = cpu_to_le32(ad->paddr); |
| 391 | break; |
| 392 | default: |
| 393 | res = -EINVAL; |
| 394 | break; |
| 395 | } |
| 396 | } else |
| 397 | res = -EINVAL; |
| 398 | return res; |
| 399 | } |
| 400 | |
| 401 | static int fsl_diu_disable_panel(struct fb_info *info) |
| 402 | { |
| 403 | struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par; |
| 404 | struct diu *hw = dr.diu_reg; |
| 405 | struct diu_ad *ad = mfbi->ad; |
| 406 | struct fsl_diu_data *machine_data = mfbi->parent; |
| 407 | int res = 0; |
| 408 | |
| 409 | switch (mfbi->index) { |
| 410 | case 0: /* plane 0 */ |
| 411 | if (hw->desc[0] != machine_data->dummy_ad->paddr) |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 412 | wr_reg_wa(&hw->desc[0], machine_data->dummy_ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 413 | break; |
| 414 | case 1: /* plane 1 AOI 0 */ |
| 415 | cmfbi = machine_data->fsl_diu_info[2]->par; |
| 416 | if (cmfbi->count > 0) /* AOI1 is open */ |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 417 | wr_reg_wa(&hw->desc[1], cmfbi->ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 418 | /* move AOI1 to the first */ |
| 419 | else /* AOI1 was closed */ |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 420 | wr_reg_wa(&hw->desc[1], machine_data->dummy_ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 421 | /* close AOI 0 */ |
| 422 | break; |
| 423 | case 3: /* plane 2 AOI 0 */ |
| 424 | cmfbi = machine_data->fsl_diu_info[4]->par; |
| 425 | if (cmfbi->count > 0) /* AOI1 is open */ |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 426 | wr_reg_wa(&hw->desc[2], cmfbi->ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 427 | /* move AOI1 to the first */ |
| 428 | else /* AOI1 was closed */ |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 429 | wr_reg_wa(&hw->desc[2], machine_data->dummy_ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 430 | /* close AOI 0 */ |
| 431 | break; |
| 432 | case 2: /* plane 1 AOI 1 */ |
| 433 | pmfbi = machine_data->fsl_diu_info[1]->par; |
| 434 | if (hw->desc[1] != ad->paddr) { |
| 435 | /* AOI1 is not the first in the chain */ |
| 436 | if (pmfbi->count > 0) |
| 437 | /* AOI0 is open, must be the first */ |
| 438 | pmfbi->ad->next_ad = 0; |
| 439 | } else /* AOI1 is the first in the chain */ |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 440 | wr_reg_wa(&hw->desc[1], machine_data->dummy_ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 441 | /* close AOI 1 */ |
| 442 | break; |
| 443 | case 4: /* plane 2 AOI 1 */ |
| 444 | pmfbi = machine_data->fsl_diu_info[3]->par; |
| 445 | if (hw->desc[2] != ad->paddr) { |
| 446 | /* AOI1 is not the first in the chain */ |
| 447 | if (pmfbi->count > 0) |
| 448 | /* AOI0 is open, must be the first */ |
| 449 | pmfbi->ad->next_ad = 0; |
| 450 | } else /* AOI1 is the first in the chain */ |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 451 | wr_reg_wa(&hw->desc[2], machine_data->dummy_ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 452 | /* close AOI 1 */ |
| 453 | break; |
| 454 | default: |
| 455 | res = -EINVAL; |
| 456 | break; |
| 457 | } |
| 458 | |
| 459 | return res; |
| 460 | } |
| 461 | |
| 462 | static void enable_lcdc(struct fb_info *info) |
| 463 | { |
| 464 | struct diu *hw = dr.diu_reg; |
| 465 | struct mfb_info *mfbi = info->par; |
| 466 | struct fsl_diu_data *machine_data = mfbi->parent; |
| 467 | |
| 468 | if (!machine_data->fb_enabled) { |
| 469 | out_be32(&hw->diu_mode, dr.mode); |
| 470 | machine_data->fb_enabled++; |
| 471 | } |
| 472 | } |
| 473 | |
| 474 | static void disable_lcdc(struct fb_info *info) |
| 475 | { |
| 476 | struct diu *hw = dr.diu_reg; |
| 477 | struct mfb_info *mfbi = info->par; |
| 478 | struct fsl_diu_data *machine_data = mfbi->parent; |
| 479 | |
| 480 | if (machine_data->fb_enabled) { |
| 481 | out_be32(&hw->diu_mode, 0); |
| 482 | machine_data->fb_enabled = 0; |
| 483 | } |
| 484 | } |
| 485 | |
| 486 | static void adjust_aoi_size_position(struct fb_var_screeninfo *var, |
| 487 | struct fb_info *info) |
| 488 | { |
| 489 | struct mfb_info *lower_aoi_mfbi, *upper_aoi_mfbi, *mfbi = info->par; |
| 490 | struct fsl_diu_data *machine_data = mfbi->parent; |
| 491 | int available_height, upper_aoi_bottom, index = mfbi->index; |
| 492 | int lower_aoi_is_open, upper_aoi_is_open; |
| 493 | __u32 base_plane_width, base_plane_height, upper_aoi_height; |
| 494 | |
| 495 | base_plane_width = machine_data->fsl_diu_info[0]->var.xres; |
| 496 | base_plane_height = machine_data->fsl_diu_info[0]->var.yres; |
| 497 | |
York Sun | fdfaa4833 | 2008-08-15 00:40:29 -0700 | [diff] [blame] | 498 | if (mfbi->x_aoi_d < 0) |
| 499 | mfbi->x_aoi_d = 0; |
| 500 | if (mfbi->y_aoi_d < 0) |
| 501 | mfbi->y_aoi_d = 0; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 502 | switch (index) { |
| 503 | case 0: |
| 504 | if (mfbi->x_aoi_d != 0) |
| 505 | mfbi->x_aoi_d = 0; |
| 506 | if (mfbi->y_aoi_d != 0) |
| 507 | mfbi->y_aoi_d = 0; |
| 508 | break; |
| 509 | case 1: /* AOI 0 */ |
| 510 | case 3: |
| 511 | lower_aoi_mfbi = machine_data->fsl_diu_info[index+1]->par; |
| 512 | lower_aoi_is_open = lower_aoi_mfbi->count > 0 ? 1 : 0; |
| 513 | if (var->xres > base_plane_width) |
| 514 | var->xres = base_plane_width; |
| 515 | if ((mfbi->x_aoi_d + var->xres) > base_plane_width) |
| 516 | mfbi->x_aoi_d = base_plane_width - var->xres; |
| 517 | |
| 518 | if (lower_aoi_is_open) |
| 519 | available_height = lower_aoi_mfbi->y_aoi_d; |
| 520 | else |
| 521 | available_height = base_plane_height; |
| 522 | if (var->yres > available_height) |
| 523 | var->yres = available_height; |
| 524 | if ((mfbi->y_aoi_d + var->yres) > available_height) |
| 525 | mfbi->y_aoi_d = available_height - var->yres; |
| 526 | break; |
| 527 | case 2: /* AOI 1 */ |
| 528 | case 4: |
| 529 | upper_aoi_mfbi = machine_data->fsl_diu_info[index-1]->par; |
| 530 | upper_aoi_height = |
| 531 | machine_data->fsl_diu_info[index-1]->var.yres; |
| 532 | upper_aoi_bottom = upper_aoi_mfbi->y_aoi_d + upper_aoi_height; |
| 533 | upper_aoi_is_open = upper_aoi_mfbi->count > 0 ? 1 : 0; |
| 534 | if (var->xres > base_plane_width) |
| 535 | var->xres = base_plane_width; |
| 536 | if ((mfbi->x_aoi_d + var->xres) > base_plane_width) |
| 537 | mfbi->x_aoi_d = base_plane_width - var->xres; |
| 538 | if (mfbi->y_aoi_d < 0) |
| 539 | mfbi->y_aoi_d = 0; |
| 540 | if (upper_aoi_is_open) { |
| 541 | if (mfbi->y_aoi_d < upper_aoi_bottom) |
| 542 | mfbi->y_aoi_d = upper_aoi_bottom; |
| 543 | available_height = base_plane_height |
| 544 | - upper_aoi_bottom; |
| 545 | } else |
| 546 | available_height = base_plane_height; |
| 547 | if (var->yres > available_height) |
| 548 | var->yres = available_height; |
| 549 | if ((mfbi->y_aoi_d + var->yres) > base_plane_height) |
| 550 | mfbi->y_aoi_d = base_plane_height - var->yres; |
| 551 | break; |
| 552 | } |
| 553 | } |
| 554 | /* |
| 555 | * Checks to see if the hardware supports the state requested by var passed |
| 556 | * in. This function does not alter the hardware state! If the var passed in |
| 557 | * is slightly off by what the hardware can support then we alter the var |
| 558 | * PASSED in to what we can do. If the hardware doesn't support mode change |
| 559 | * a -EINVAL will be returned by the upper layers. |
| 560 | */ |
| 561 | static int fsl_diu_check_var(struct fb_var_screeninfo *var, |
| 562 | struct fb_info *info) |
| 563 | { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 564 | if (var->xres_virtual < var->xres) |
| 565 | var->xres_virtual = var->xres; |
| 566 | if (var->yres_virtual < var->yres) |
| 567 | var->yres_virtual = var->yres; |
| 568 | |
| 569 | if (var->xoffset < 0) |
| 570 | var->xoffset = 0; |
| 571 | |
| 572 | if (var->yoffset < 0) |
| 573 | var->yoffset = 0; |
| 574 | |
| 575 | if (var->xoffset + info->var.xres > info->var.xres_virtual) |
| 576 | var->xoffset = info->var.xres_virtual - info->var.xres; |
| 577 | |
| 578 | if (var->yoffset + info->var.yres > info->var.yres_virtual) |
| 579 | var->yoffset = info->var.yres_virtual - info->var.yres; |
| 580 | |
| 581 | if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) && |
| 582 | (var->bits_per_pixel != 16)) |
| 583 | var->bits_per_pixel = default_bpp; |
| 584 | |
| 585 | switch (var->bits_per_pixel) { |
| 586 | case 16: |
| 587 | var->red.length = 5; |
| 588 | var->red.offset = 11; |
| 589 | var->red.msb_right = 0; |
| 590 | |
| 591 | var->green.length = 6; |
| 592 | var->green.offset = 5; |
| 593 | var->green.msb_right = 0; |
| 594 | |
| 595 | var->blue.length = 5; |
| 596 | var->blue.offset = 0; |
| 597 | var->blue.msb_right = 0; |
| 598 | |
| 599 | var->transp.length = 0; |
| 600 | var->transp.offset = 0; |
| 601 | var->transp.msb_right = 0; |
| 602 | break; |
| 603 | case 24: |
| 604 | var->red.length = 8; |
| 605 | var->red.offset = 0; |
| 606 | var->red.msb_right = 0; |
| 607 | |
| 608 | var->green.length = 8; |
| 609 | var->green.offset = 8; |
| 610 | var->green.msb_right = 0; |
| 611 | |
| 612 | var->blue.length = 8; |
| 613 | var->blue.offset = 16; |
| 614 | var->blue.msb_right = 0; |
| 615 | |
| 616 | var->transp.length = 0; |
| 617 | var->transp.offset = 0; |
| 618 | var->transp.msb_right = 0; |
| 619 | break; |
| 620 | case 32: |
| 621 | var->red.length = 8; |
| 622 | var->red.offset = 16; |
| 623 | var->red.msb_right = 0; |
| 624 | |
| 625 | var->green.length = 8; |
| 626 | var->green.offset = 8; |
| 627 | var->green.msb_right = 0; |
| 628 | |
| 629 | var->blue.length = 8; |
| 630 | var->blue.offset = 0; |
| 631 | var->blue.msb_right = 0; |
| 632 | |
| 633 | var->transp.length = 8; |
| 634 | var->transp.offset = 24; |
| 635 | var->transp.msb_right = 0; |
| 636 | |
| 637 | break; |
| 638 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 639 | |
| 640 | var->height = -1; |
| 641 | var->width = -1; |
| 642 | var->grayscale = 0; |
| 643 | |
| 644 | /* Copy nonstd field to/from sync for fbset usage */ |
| 645 | var->sync |= var->nonstd; |
| 646 | var->nonstd |= var->sync; |
| 647 | |
| 648 | adjust_aoi_size_position(var, info); |
| 649 | return 0; |
| 650 | } |
| 651 | |
| 652 | static void set_fix(struct fb_info *info) |
| 653 | { |
| 654 | struct fb_fix_screeninfo *fix = &info->fix; |
| 655 | struct fb_var_screeninfo *var = &info->var; |
| 656 | struct mfb_info *mfbi = info->par; |
| 657 | |
Timur Tabi | ec02dd2 | 2011-09-15 16:44:54 -0500 | [diff] [blame^] | 658 | strncpy(fix->id, mfbi->id, sizeof(fix->id)); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 659 | fix->line_length = var->xres_virtual * var->bits_per_pixel / 8; |
| 660 | fix->type = FB_TYPE_PACKED_PIXELS; |
| 661 | fix->accel = FB_ACCEL_NONE; |
| 662 | fix->visual = FB_VISUAL_TRUECOLOR; |
| 663 | fix->xpanstep = 1; |
| 664 | fix->ypanstep = 1; |
| 665 | } |
| 666 | |
| 667 | static void update_lcdc(struct fb_info *info) |
| 668 | { |
| 669 | struct fb_var_screeninfo *var = &info->var; |
| 670 | struct mfb_info *mfbi = info->par; |
| 671 | struct fsl_diu_data *machine_data = mfbi->parent; |
| 672 | struct diu *hw; |
| 673 | int i, j; |
| 674 | char __iomem *cursor_base, *gamma_table_base; |
| 675 | |
| 676 | u32 temp; |
| 677 | |
| 678 | hw = dr.diu_reg; |
| 679 | |
| 680 | if (mfbi->type == MFB_TYPE_OFF) { |
| 681 | fsl_diu_disable_panel(info); |
| 682 | return; |
| 683 | } |
| 684 | |
| 685 | diu_ops.set_monitor_port(machine_data->monitor_port); |
| 686 | gamma_table_base = pool.gamma.vaddr; |
| 687 | cursor_base = pool.cursor.vaddr; |
| 688 | /* Prep for DIU init - gamma table, cursor table */ |
| 689 | |
| 690 | for (i = 0; i <= 2; i++) |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 691 | for (j = 0; j <= 255; j++) |
| 692 | *gamma_table_base++ = j; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 693 | |
| 694 | diu_ops.set_gamma_table(machine_data->monitor_port, pool.gamma.vaddr); |
| 695 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 696 | disable_lcdc(info); |
| 697 | |
| 698 | /* Program DIU registers */ |
| 699 | |
| 700 | out_be32(&hw->gamma, pool.gamma.paddr); |
| 701 | out_be32(&hw->cursor, pool.cursor.paddr); |
| 702 | |
| 703 | out_be32(&hw->bgnd, 0x007F7F7F); /* BGND */ |
| 704 | out_be32(&hw->bgnd_wb, 0); /* BGND_WB */ |
| 705 | out_be32(&hw->disp_size, (var->yres << 16 | var->xres)); |
| 706 | /* DISP SIZE */ |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 707 | out_be32(&hw->wb_size, 0); /* WB SIZE */ |
| 708 | out_be32(&hw->wb_mem_addr, 0); /* WB MEM ADDR */ |
| 709 | |
| 710 | /* Horizontal and vertical configuration register */ |
| 711 | temp = var->left_margin << 22 | /* BP_H */ |
| 712 | var->hsync_len << 11 | /* PW_H */ |
| 713 | var->right_margin; /* FP_H */ |
| 714 | |
| 715 | out_be32(&hw->hsyn_para, temp); |
| 716 | |
| 717 | temp = var->upper_margin << 22 | /* BP_V */ |
| 718 | var->vsync_len << 11 | /* PW_V */ |
| 719 | var->lower_margin; /* FP_V */ |
| 720 | |
| 721 | out_be32(&hw->vsyn_para, temp); |
| 722 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 723 | diu_ops.set_pixel_clock(var->pixclock); |
| 724 | |
| 725 | out_be32(&hw->syn_pol, 0); /* SYNC SIGNALS POLARITY */ |
| 726 | out_be32(&hw->thresholds, 0x00037800); /* The Thresholds */ |
| 727 | out_be32(&hw->int_status, 0); /* INTERRUPT STATUS */ |
| 728 | out_be32(&hw->plut, 0x01F5F666); |
| 729 | |
| 730 | /* Enable the DIU */ |
| 731 | enable_lcdc(info); |
| 732 | } |
| 733 | |
| 734 | static int map_video_memory(struct fb_info *info) |
| 735 | { |
| 736 | phys_addr_t phys; |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 737 | u32 smem_len = info->fix.line_length * info->var.yres_virtual; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 738 | |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 739 | info->screen_base = fsl_diu_alloc(smem_len, &phys); |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 740 | if (info->screen_base == NULL) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 741 | dev_err(info->dev, "unable to allocate fb memory\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 742 | return -ENOMEM; |
| 743 | } |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 744 | mutex_lock(&info->mm_lock); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 745 | info->fix.smem_start = (unsigned long) phys; |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 746 | info->fix.smem_len = smem_len; |
| 747 | mutex_unlock(&info->mm_lock); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 748 | info->screen_size = info->fix.smem_len; |
| 749 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 750 | return 0; |
| 751 | } |
| 752 | |
| 753 | static void unmap_video_memory(struct fb_info *info) |
| 754 | { |
| 755 | fsl_diu_free(info->screen_base, info->fix.smem_len); |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 756 | mutex_lock(&info->mm_lock); |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 757 | info->screen_base = NULL; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 758 | info->fix.smem_start = 0; |
| 759 | info->fix.smem_len = 0; |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 760 | mutex_unlock(&info->mm_lock); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 761 | } |
| 762 | |
| 763 | /* |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 764 | * Using the fb_var_screeninfo in fb_info we set the aoi of this |
| 765 | * particular framebuffer. It is a light version of fsl_diu_set_par. |
| 766 | */ |
| 767 | static int fsl_diu_set_aoi(struct fb_info *info) |
| 768 | { |
| 769 | struct fb_var_screeninfo *var = &info->var; |
| 770 | struct mfb_info *mfbi = info->par; |
| 771 | struct diu_ad *ad = mfbi->ad; |
| 772 | |
| 773 | /* AOI should not be greater than display size */ |
| 774 | ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset); |
| 775 | ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d); |
| 776 | return 0; |
| 777 | } |
| 778 | |
| 779 | /* |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 780 | * Using the fb_var_screeninfo in fb_info we set the resolution of this |
| 781 | * particular framebuffer. This function alters the fb_fix_screeninfo stored |
| 782 | * in fb_info. It does not alter var in fb_info since we are using that |
| 783 | * data. This means we depend on the data in var inside fb_info to be |
| 784 | * supported by the hardware. fsl_diu_check_var is always called before |
| 785 | * fsl_diu_set_par to ensure this. |
| 786 | */ |
| 787 | static int fsl_diu_set_par(struct fb_info *info) |
| 788 | { |
| 789 | unsigned long len; |
| 790 | struct fb_var_screeninfo *var = &info->var; |
| 791 | struct mfb_info *mfbi = info->par; |
| 792 | struct fsl_diu_data *machine_data = mfbi->parent; |
| 793 | struct diu_ad *ad = mfbi->ad; |
| 794 | struct diu *hw; |
| 795 | |
| 796 | hw = dr.diu_reg; |
| 797 | |
| 798 | set_fix(info); |
| 799 | mfbi->cursor_reset = 1; |
| 800 | |
| 801 | len = info->var.yres_virtual * info->fix.line_length; |
| 802 | /* Alloc & dealloc each time resolution/bpp change */ |
| 803 | if (len != info->fix.smem_len) { |
| 804 | if (info->fix.smem_start) |
| 805 | unmap_video_memory(info); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 806 | |
| 807 | /* Memory allocation for framebuffer */ |
| 808 | if (map_video_memory(info)) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 809 | dev_err(info->dev, "unable to allocate fb memory 1\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 810 | return -ENOMEM; |
| 811 | } |
| 812 | } |
| 813 | |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 814 | ad->pix_fmt = diu_ops.get_pixel_format(machine_data->monitor_port, |
| 815 | var->bits_per_pixel); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 816 | ad->addr = cpu_to_le32(info->fix.smem_start); |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 817 | ad->src_size_g_alpha = cpu_to_le32((var->yres_virtual << 12) | |
| 818 | var->xres_virtual) | mfbi->g_alpha; |
| 819 | /* AOI should not be greater than display size */ |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 820 | ad->aoi_size = cpu_to_le32((var->yres << 16) | var->xres); |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 821 | ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 822 | ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d); |
| 823 | |
| 824 | /* Disable chroma keying function */ |
| 825 | ad->ckmax_r = 0; |
| 826 | ad->ckmax_g = 0; |
| 827 | ad->ckmax_b = 0; |
| 828 | |
| 829 | ad->ckmin_r = 255; |
| 830 | ad->ckmin_g = 255; |
| 831 | ad->ckmin_b = 255; |
| 832 | |
| 833 | if (mfbi->index == 0) |
| 834 | update_lcdc(info); |
| 835 | return 0; |
| 836 | } |
| 837 | |
| 838 | static inline __u32 CNVT_TOHW(__u32 val, __u32 width) |
| 839 | { |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 840 | return ((val << width) + 0x7FFF - val) >> 16; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 841 | } |
| 842 | |
| 843 | /* |
| 844 | * Set a single color register. The values supplied have a 16 bit magnitude |
| 845 | * which needs to be scaled in this function for the hardware. Things to take |
| 846 | * into consideration are how many color registers, if any, are supported with |
| 847 | * the current color visual. With truecolor mode no color palettes are |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 848 | * supported. Here a pseudo palette is created which we store the value in |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 849 | * pseudo_palette in struct fb_info. For pseudocolor mode we have a limited |
| 850 | * color palette. |
| 851 | */ |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 852 | static int fsl_diu_setcolreg(unsigned int regno, unsigned int red, |
| 853 | unsigned int green, unsigned int blue, |
| 854 | unsigned int transp, struct fb_info *info) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 855 | { |
| 856 | int ret = 1; |
| 857 | |
| 858 | /* |
| 859 | * If greyscale is true, then we convert the RGB value |
| 860 | * to greyscale no matter what visual we are using. |
| 861 | */ |
| 862 | if (info->var.grayscale) |
| 863 | red = green = blue = (19595 * red + 38470 * green + |
| 864 | 7471 * blue) >> 16; |
| 865 | switch (info->fix.visual) { |
| 866 | case FB_VISUAL_TRUECOLOR: |
| 867 | /* |
| 868 | * 16-bit True Colour. We encode the RGB value |
| 869 | * according to the RGB bitfield information. |
| 870 | */ |
| 871 | if (regno < 16) { |
| 872 | u32 *pal = info->pseudo_palette; |
| 873 | u32 v; |
| 874 | |
| 875 | red = CNVT_TOHW(red, info->var.red.length); |
| 876 | green = CNVT_TOHW(green, info->var.green.length); |
| 877 | blue = CNVT_TOHW(blue, info->var.blue.length); |
| 878 | transp = CNVT_TOHW(transp, info->var.transp.length); |
| 879 | |
| 880 | v = (red << info->var.red.offset) | |
| 881 | (green << info->var.green.offset) | |
| 882 | (blue << info->var.blue.offset) | |
| 883 | (transp << info->var.transp.offset); |
| 884 | |
| 885 | pal[regno] = v; |
| 886 | ret = 0; |
| 887 | } |
| 888 | break; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 889 | } |
| 890 | |
| 891 | return ret; |
| 892 | } |
| 893 | |
| 894 | /* |
| 895 | * Pan (or wrap, depending on the `vmode' field) the display using the |
| 896 | * 'xoffset' and 'yoffset' fields of the 'var' structure. If the values |
| 897 | * don't fit, return -EINVAL. |
| 898 | */ |
| 899 | static int fsl_diu_pan_display(struct fb_var_screeninfo *var, |
| 900 | struct fb_info *info) |
| 901 | { |
| 902 | if ((info->var.xoffset == var->xoffset) && |
| 903 | (info->var.yoffset == var->yoffset)) |
| 904 | return 0; /* No change, do nothing */ |
| 905 | |
| 906 | if (var->xoffset < 0 || var->yoffset < 0 |
| 907 | || var->xoffset + info->var.xres > info->var.xres_virtual |
| 908 | || var->yoffset + info->var.yres > info->var.yres_virtual) |
| 909 | return -EINVAL; |
| 910 | |
| 911 | info->var.xoffset = var->xoffset; |
| 912 | info->var.yoffset = var->yoffset; |
| 913 | |
| 914 | if (var->vmode & FB_VMODE_YWRAP) |
| 915 | info->var.vmode |= FB_VMODE_YWRAP; |
| 916 | else |
| 917 | info->var.vmode &= ~FB_VMODE_YWRAP; |
| 918 | |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 919 | fsl_diu_set_aoi(info); |
| 920 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 921 | return 0; |
| 922 | } |
| 923 | |
| 924 | /* |
| 925 | * Blank the screen if blank_mode != 0, else unblank. Return 0 if blanking |
| 926 | * succeeded, != 0 if un-/blanking failed. |
| 927 | * blank_mode == 2: suspend vsync |
| 928 | * blank_mode == 3: suspend hsync |
| 929 | * blank_mode == 4: powerdown |
| 930 | */ |
| 931 | static int fsl_diu_blank(int blank_mode, struct fb_info *info) |
| 932 | { |
| 933 | struct mfb_info *mfbi = info->par; |
| 934 | |
| 935 | mfbi->blank = blank_mode; |
| 936 | |
| 937 | switch (blank_mode) { |
| 938 | case FB_BLANK_VSYNC_SUSPEND: |
| 939 | case FB_BLANK_HSYNC_SUSPEND: |
| 940 | /* FIXME: fixes to enable_panel and enable lcdc needed */ |
| 941 | case FB_BLANK_NORMAL: |
| 942 | /* fsl_diu_disable_panel(info);*/ |
| 943 | break; |
| 944 | case FB_BLANK_POWERDOWN: |
| 945 | /* disable_lcdc(info); */ |
| 946 | break; |
| 947 | case FB_BLANK_UNBLANK: |
| 948 | /* fsl_diu_enable_panel(info);*/ |
| 949 | break; |
| 950 | } |
| 951 | |
| 952 | return 0; |
| 953 | } |
| 954 | |
| 955 | static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd, |
| 956 | unsigned long arg) |
| 957 | { |
| 958 | struct mfb_info *mfbi = info->par; |
| 959 | struct diu_ad *ad = mfbi->ad; |
| 960 | struct mfb_chroma_key ck; |
| 961 | unsigned char global_alpha; |
| 962 | struct aoi_display_offset aoi_d; |
| 963 | __u32 pix_fmt; |
| 964 | void __user *buf = (void __user *)arg; |
| 965 | |
| 966 | if (!arg) |
| 967 | return -EINVAL; |
| 968 | switch (cmd) { |
| 969 | case MFB_SET_PIXFMT: |
| 970 | if (copy_from_user(&pix_fmt, buf, sizeof(pix_fmt))) |
| 971 | return -EFAULT; |
| 972 | ad->pix_fmt = pix_fmt; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 973 | break; |
| 974 | case MFB_GET_PIXFMT: |
| 975 | pix_fmt = ad->pix_fmt; |
| 976 | if (copy_to_user(buf, &pix_fmt, sizeof(pix_fmt))) |
| 977 | return -EFAULT; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 978 | break; |
| 979 | case MFB_SET_AOID: |
| 980 | if (copy_from_user(&aoi_d, buf, sizeof(aoi_d))) |
| 981 | return -EFAULT; |
| 982 | mfbi->x_aoi_d = aoi_d.x_aoi_d; |
| 983 | mfbi->y_aoi_d = aoi_d.y_aoi_d; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 984 | fsl_diu_check_var(&info->var, info); |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 985 | fsl_diu_set_aoi(info); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 986 | break; |
| 987 | case MFB_GET_AOID: |
| 988 | aoi_d.x_aoi_d = mfbi->x_aoi_d; |
| 989 | aoi_d.y_aoi_d = mfbi->y_aoi_d; |
| 990 | if (copy_to_user(buf, &aoi_d, sizeof(aoi_d))) |
| 991 | return -EFAULT; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 992 | break; |
| 993 | case MFB_GET_ALPHA: |
| 994 | global_alpha = mfbi->g_alpha; |
| 995 | if (copy_to_user(buf, &global_alpha, sizeof(global_alpha))) |
| 996 | return -EFAULT; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 997 | break; |
| 998 | case MFB_SET_ALPHA: |
| 999 | /* set panel information */ |
| 1000 | if (copy_from_user(&global_alpha, buf, sizeof(global_alpha))) |
| 1001 | return -EFAULT; |
| 1002 | ad->src_size_g_alpha = (ad->src_size_g_alpha & (~0xff)) | |
| 1003 | (global_alpha & 0xff); |
| 1004 | mfbi->g_alpha = global_alpha; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1005 | break; |
| 1006 | case MFB_SET_CHROMA_KEY: |
| 1007 | /* set panel winformation */ |
| 1008 | if (copy_from_user(&ck, buf, sizeof(ck))) |
| 1009 | return -EFAULT; |
| 1010 | |
| 1011 | if (ck.enable && |
| 1012 | (ck.red_max < ck.red_min || |
| 1013 | ck.green_max < ck.green_min || |
| 1014 | ck.blue_max < ck.blue_min)) |
| 1015 | return -EINVAL; |
| 1016 | |
| 1017 | if (!ck.enable) { |
| 1018 | ad->ckmax_r = 0; |
| 1019 | ad->ckmax_g = 0; |
| 1020 | ad->ckmax_b = 0; |
| 1021 | ad->ckmin_r = 255; |
| 1022 | ad->ckmin_g = 255; |
| 1023 | ad->ckmin_b = 255; |
| 1024 | } else { |
| 1025 | ad->ckmax_r = ck.red_max; |
| 1026 | ad->ckmax_g = ck.green_max; |
| 1027 | ad->ckmax_b = ck.blue_max; |
| 1028 | ad->ckmin_r = ck.red_min; |
| 1029 | ad->ckmin_g = ck.green_min; |
| 1030 | ad->ckmin_b = ck.blue_min; |
| 1031 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1032 | break; |
| 1033 | case FBIOGET_GWINFO: |
| 1034 | if (mfbi->type == MFB_TYPE_OFF) |
| 1035 | return -ENODEV; |
| 1036 | /* get graphic window information */ |
| 1037 | if (copy_to_user(buf, ad, sizeof(*ad))) |
| 1038 | return -EFAULT; |
| 1039 | break; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1040 | |
| 1041 | default: |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1042 | dev_err(info->dev, "unknown ioctl command (0x%08X)\n", cmd); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1043 | return -ENOIOCTLCMD; |
| 1044 | } |
| 1045 | |
| 1046 | return 0; |
| 1047 | } |
| 1048 | |
| 1049 | /* turn on fb if count == 1 |
| 1050 | */ |
| 1051 | static int fsl_diu_open(struct fb_info *info, int user) |
| 1052 | { |
| 1053 | struct mfb_info *mfbi = info->par; |
| 1054 | int res = 0; |
| 1055 | |
Anatolij Gustschin | 4b5006e | 2010-07-23 04:00:37 +0000 | [diff] [blame] | 1056 | /* free boot splash memory on first /dev/fb0 open */ |
| 1057 | if (!mfbi->index && diu_ops.release_bootmem) |
| 1058 | diu_ops.release_bootmem(); |
| 1059 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1060 | spin_lock(&diu_lock); |
| 1061 | mfbi->count++; |
| 1062 | if (mfbi->count == 1) { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1063 | fsl_diu_check_var(&info->var, info); |
| 1064 | res = fsl_diu_set_par(info); |
| 1065 | if (res < 0) |
| 1066 | mfbi->count--; |
| 1067 | else { |
| 1068 | res = fsl_diu_enable_panel(info); |
| 1069 | if (res < 0) |
| 1070 | mfbi->count--; |
| 1071 | } |
| 1072 | } |
| 1073 | |
| 1074 | spin_unlock(&diu_lock); |
| 1075 | return res; |
| 1076 | } |
| 1077 | |
| 1078 | /* turn off fb if count == 0 |
| 1079 | */ |
| 1080 | static int fsl_diu_release(struct fb_info *info, int user) |
| 1081 | { |
| 1082 | struct mfb_info *mfbi = info->par; |
| 1083 | int res = 0; |
| 1084 | |
| 1085 | spin_lock(&diu_lock); |
| 1086 | mfbi->count--; |
| 1087 | if (mfbi->count == 0) { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1088 | res = fsl_diu_disable_panel(info); |
| 1089 | if (res < 0) |
| 1090 | mfbi->count++; |
| 1091 | } |
| 1092 | spin_unlock(&diu_lock); |
| 1093 | return res; |
| 1094 | } |
| 1095 | |
| 1096 | static struct fb_ops fsl_diu_ops = { |
| 1097 | .owner = THIS_MODULE, |
| 1098 | .fb_check_var = fsl_diu_check_var, |
| 1099 | .fb_set_par = fsl_diu_set_par, |
| 1100 | .fb_setcolreg = fsl_diu_setcolreg, |
| 1101 | .fb_blank = fsl_diu_blank, |
| 1102 | .fb_pan_display = fsl_diu_pan_display, |
| 1103 | .fb_fillrect = cfb_fillrect, |
| 1104 | .fb_copyarea = cfb_copyarea, |
| 1105 | .fb_imageblit = cfb_imageblit, |
| 1106 | .fb_ioctl = fsl_diu_ioctl, |
| 1107 | .fb_open = fsl_diu_open, |
| 1108 | .fb_release = fsl_diu_release, |
| 1109 | }; |
| 1110 | |
| 1111 | static int init_fbinfo(struct fb_info *info) |
| 1112 | { |
| 1113 | struct mfb_info *mfbi = info->par; |
| 1114 | |
| 1115 | info->device = NULL; |
| 1116 | info->var.activate = FB_ACTIVATE_NOW; |
| 1117 | info->fbops = &fsl_diu_ops; |
| 1118 | info->flags = FBINFO_FLAG_DEFAULT; |
| 1119 | info->pseudo_palette = &mfbi->pseudo_palette; |
| 1120 | |
| 1121 | /* Allocate colormap */ |
| 1122 | fb_alloc_cmap(&info->cmap, 16, 0); |
| 1123 | return 0; |
| 1124 | } |
| 1125 | |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 1126 | static int __devinit install_fb(struct fb_info *info) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1127 | { |
| 1128 | int rc; |
| 1129 | struct mfb_info *mfbi = info->par; |
| 1130 | const char *aoi_mode, *init_aoi_mode = "320x240"; |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1131 | struct fb_videomode *db = fsl_diu_mode_db; |
| 1132 | unsigned int dbsize = ARRAY_SIZE(fsl_diu_mode_db); |
| 1133 | int has_default_mode = 1; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1134 | |
| 1135 | if (init_fbinfo(info)) |
| 1136 | return -EINVAL; |
| 1137 | |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1138 | if (mfbi->index == 0) { /* plane 0 */ |
| 1139 | if (mfbi->edid_data) { |
| 1140 | /* Now build modedb from EDID */ |
| 1141 | fb_edid_to_monspecs(mfbi->edid_data, &info->monspecs); |
| 1142 | fb_videomode_to_modelist(info->monspecs.modedb, |
| 1143 | info->monspecs.modedb_len, |
| 1144 | &info->modelist); |
| 1145 | db = info->monspecs.modedb; |
| 1146 | dbsize = info->monspecs.modedb_len; |
| 1147 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1148 | aoi_mode = fb_mode; |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1149 | } else { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1150 | aoi_mode = init_aoi_mode; |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1151 | } |
Timur Tabi | 63cf8df | 2011-09-15 16:44:51 -0500 | [diff] [blame] | 1152 | rc = fb_find_mode(&info->var, info, aoi_mode, db, dbsize, NULL, |
| 1153 | default_bpp); |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1154 | if (!rc) { |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1155 | /* |
| 1156 | * For plane 0 we continue and look into |
| 1157 | * driver's internal modedb. |
| 1158 | */ |
| 1159 | if (mfbi->index == 0 && mfbi->edid_data) |
| 1160 | has_default_mode = 0; |
| 1161 | else |
| 1162 | return -EINVAL; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1163 | } |
| 1164 | |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1165 | if (!has_default_mode) { |
| 1166 | rc = fb_find_mode(&info->var, info, aoi_mode, fsl_diu_mode_db, |
Timur Tabi | 63cf8df | 2011-09-15 16:44:51 -0500 | [diff] [blame] | 1167 | ARRAY_SIZE(fsl_diu_mode_db), NULL, default_bpp); |
| 1168 | if (rc) |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1169 | has_default_mode = 1; |
| 1170 | } |
| 1171 | |
| 1172 | /* Still not found, use preferred mode from database if any */ |
| 1173 | if (!has_default_mode && info->monspecs.modedb) { |
| 1174 | struct fb_monspecs *specs = &info->monspecs; |
| 1175 | struct fb_videomode *modedb = &specs->modedb[0]; |
| 1176 | |
| 1177 | /* |
| 1178 | * Get preferred timing. If not found, |
| 1179 | * first mode in database will be used. |
| 1180 | */ |
| 1181 | if (specs->misc & FB_MISC_1ST_DETAIL) { |
| 1182 | int i; |
| 1183 | |
| 1184 | for (i = 0; i < specs->modedb_len; i++) { |
| 1185 | if (specs->modedb[i].flag & FB_MODE_IS_FIRST) { |
| 1186 | modedb = &specs->modedb[i]; |
| 1187 | break; |
| 1188 | } |
| 1189 | } |
| 1190 | } |
| 1191 | |
| 1192 | info->var.bits_per_pixel = default_bpp; |
| 1193 | fb_videomode_to_var(&info->var, modedb); |
| 1194 | } |
| 1195 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1196 | if (mfbi->type == MFB_TYPE_OFF) |
| 1197 | mfbi->blank = FB_BLANK_NORMAL; |
| 1198 | else |
| 1199 | mfbi->blank = FB_BLANK_UNBLANK; |
| 1200 | |
| 1201 | if (fsl_diu_check_var(&info->var, info)) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1202 | dev_err(info->dev, "fsl_diu_check_var failed\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1203 | fb_dealloc_cmap(&info->cmap); |
| 1204 | return -EINVAL; |
| 1205 | } |
| 1206 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1207 | if (register_framebuffer(info) < 0) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1208 | dev_err(info->dev, "register_framebuffer failed\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1209 | unmap_video_memory(info); |
| 1210 | fb_dealloc_cmap(&info->cmap); |
| 1211 | return -EINVAL; |
| 1212 | } |
| 1213 | |
| 1214 | mfbi->registered = 1; |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1215 | dev_info(info->dev, "%s registered successfully\n", mfbi->id); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1216 | |
| 1217 | return 0; |
| 1218 | } |
| 1219 | |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 1220 | static void uninstall_fb(struct fb_info *info) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1221 | { |
| 1222 | struct mfb_info *mfbi = info->par; |
| 1223 | |
| 1224 | if (!mfbi->registered) |
| 1225 | return; |
| 1226 | |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1227 | if (mfbi->index == 0) |
| 1228 | kfree(mfbi->edid_data); |
| 1229 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1230 | unregister_framebuffer(info); |
| 1231 | unmap_video_memory(info); |
| 1232 | if (&info->cmap) |
| 1233 | fb_dealloc_cmap(&info->cmap); |
| 1234 | |
| 1235 | mfbi->registered = 0; |
| 1236 | } |
| 1237 | |
| 1238 | static irqreturn_t fsl_diu_isr(int irq, void *dev_id) |
| 1239 | { |
| 1240 | struct diu *hw = dr.diu_reg; |
| 1241 | unsigned int status = in_be32(&hw->int_status); |
| 1242 | |
| 1243 | if (status) { |
| 1244 | /* This is the workaround for underrun */ |
| 1245 | if (status & INT_UNDRUN) { |
| 1246 | out_be32(&hw->diu_mode, 0); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1247 | udelay(1); |
| 1248 | out_be32(&hw->diu_mode, 1); |
| 1249 | } |
| 1250 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
| 1251 | else if (status & INT_VSYNC) { |
| 1252 | unsigned int i; |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 1253 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1254 | for (i = 0; i < coherence_data_size; |
| 1255 | i += d_cache_line_size) |
| 1256 | __asm__ __volatile__ ( |
| 1257 | "dcbz 0, %[input]" |
| 1258 | ::[input]"r"(&coherence_data[i])); |
| 1259 | } |
| 1260 | #endif |
| 1261 | return IRQ_HANDLED; |
| 1262 | } |
| 1263 | return IRQ_NONE; |
| 1264 | } |
| 1265 | |
| 1266 | static int request_irq_local(int irq) |
| 1267 | { |
Timur Tabi | bada04f | 2011-09-15 16:44:52 -0500 | [diff] [blame] | 1268 | u32 ints; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1269 | struct diu *hw; |
| 1270 | int ret; |
| 1271 | |
| 1272 | hw = dr.diu_reg; |
| 1273 | |
| 1274 | /* Read to clear the status */ |
Timur Tabi | bada04f | 2011-09-15 16:44:52 -0500 | [diff] [blame] | 1275 | in_be32(&hw->int_status); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1276 | |
Timur Tabi | f8c6bf6 | 2011-09-15 16:44:53 -0500 | [diff] [blame] | 1277 | ret = request_irq(irq, fsl_diu_isr, 0, "fsl-diu-fb", NULL); |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1278 | if (!ret) { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1279 | ints = INT_PARERR | INT_LS_BF_VS; |
| 1280 | #if !defined(CONFIG_NOT_COHERENT_CACHE) |
| 1281 | ints |= INT_VSYNC; |
| 1282 | #endif |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 1283 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1284 | if (dr.mode == MFB_MODE2 || dr.mode == MFB_MODE3) |
| 1285 | ints |= INT_VSYNC_WB; |
| 1286 | |
| 1287 | /* Read to clear the status */ |
Timur Tabi | bada04f | 2011-09-15 16:44:52 -0500 | [diff] [blame] | 1288 | in_be32(&hw->int_status); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1289 | out_be32(&hw->int_mask, ints); |
| 1290 | } |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 1291 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1292 | return ret; |
| 1293 | } |
| 1294 | |
| 1295 | static void free_irq_local(int irq) |
| 1296 | { |
| 1297 | struct diu *hw = dr.diu_reg; |
| 1298 | |
| 1299 | /* Disable all LCDC interrupt */ |
| 1300 | out_be32(&hw->int_mask, 0x1f); |
| 1301 | |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 1302 | free_irq(irq, NULL); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1303 | } |
| 1304 | |
| 1305 | #ifdef CONFIG_PM |
| 1306 | /* |
| 1307 | * Power management hooks. Note that we won't be called from IRQ context, |
| 1308 | * unlike the blank functions above, so we may sleep. |
| 1309 | */ |
Grant Likely | 2dc1158 | 2010-08-06 09:25:50 -0600 | [diff] [blame] | 1310 | static int fsl_diu_suspend(struct platform_device *ofdev, pm_message_t state) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1311 | { |
| 1312 | struct fsl_diu_data *machine_data; |
| 1313 | |
Takashi Iwai | 48948a3 | 2008-07-08 18:41:17 +0200 | [diff] [blame] | 1314 | machine_data = dev_get_drvdata(&ofdev->dev); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1315 | disable_lcdc(machine_data->fsl_diu_info[0]); |
| 1316 | |
| 1317 | return 0; |
| 1318 | } |
| 1319 | |
Grant Likely | 2dc1158 | 2010-08-06 09:25:50 -0600 | [diff] [blame] | 1320 | static int fsl_diu_resume(struct platform_device *ofdev) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1321 | { |
| 1322 | struct fsl_diu_data *machine_data; |
| 1323 | |
Takashi Iwai | 48948a3 | 2008-07-08 18:41:17 +0200 | [diff] [blame] | 1324 | machine_data = dev_get_drvdata(&ofdev->dev); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1325 | enable_lcdc(machine_data->fsl_diu_info[0]); |
| 1326 | |
| 1327 | return 0; |
| 1328 | } |
| 1329 | |
| 1330 | #else |
| 1331 | #define fsl_diu_suspend NULL |
| 1332 | #define fsl_diu_resume NULL |
| 1333 | #endif /* CONFIG_PM */ |
| 1334 | |
| 1335 | /* Align to 64-bit(8-byte), 32-byte, etc. */ |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1336 | static int allocate_buf(struct device *dev, struct diu_addr *buf, u32 size, |
| 1337 | u32 bytes_align) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1338 | { |
Timur Tabi | bada04f | 2011-09-15 16:44:52 -0500 | [diff] [blame] | 1339 | u32 offset; |
| 1340 | dma_addr_t mask; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1341 | |
Timur Tabi | bada04f | 2011-09-15 16:44:52 -0500 | [diff] [blame] | 1342 | buf->vaddr = |
| 1343 | dma_alloc_coherent(dev, size + bytes_align, &buf->paddr, |
| 1344 | GFP_DMA | __GFP_ZERO); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1345 | if (!buf->vaddr) |
| 1346 | return -ENOMEM; |
| 1347 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1348 | mask = bytes_align - 1; |
Timur Tabi | bada04f | 2011-09-15 16:44:52 -0500 | [diff] [blame] | 1349 | offset = buf->paddr & mask; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1350 | if (offset) { |
| 1351 | buf->offset = bytes_align - offset; |
Timur Tabi | bada04f | 2011-09-15 16:44:52 -0500 | [diff] [blame] | 1352 | buf->paddr = buf->paddr + offset; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1353 | } else |
| 1354 | buf->offset = 0; |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 1355 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1356 | return 0; |
| 1357 | } |
| 1358 | |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1359 | static void free_buf(struct device *dev, struct diu_addr *buf, u32 size, |
| 1360 | u32 bytes_align) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1361 | { |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 1362 | dma_free_coherent(dev, size + bytes_align, buf->vaddr, |
| 1363 | buf->paddr - buf->offset); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1364 | } |
| 1365 | |
| 1366 | static ssize_t store_monitor(struct device *device, |
| 1367 | struct device_attribute *attr, const char *buf, size_t count) |
| 1368 | { |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 1369 | enum fsl_diu_monitor_port old_monitor_port; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1370 | struct fsl_diu_data *machine_data = |
| 1371 | container_of(attr, struct fsl_diu_data, dev_attr); |
| 1372 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1373 | old_monitor_port = machine_data->monitor_port; |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 1374 | machine_data->monitor_port = fsl_diu_name_to_port(buf); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1375 | |
| 1376 | if (old_monitor_port != machine_data->monitor_port) { |
| 1377 | /* All AOIs need adjust pixel format |
| 1378 | * fsl_diu_set_par only change the pixsel format here |
| 1379 | * unlikely to fail. */ |
| 1380 | fsl_diu_set_par(machine_data->fsl_diu_info[0]); |
| 1381 | fsl_diu_set_par(machine_data->fsl_diu_info[1]); |
| 1382 | fsl_diu_set_par(machine_data->fsl_diu_info[2]); |
| 1383 | fsl_diu_set_par(machine_data->fsl_diu_info[3]); |
| 1384 | fsl_diu_set_par(machine_data->fsl_diu_info[4]); |
| 1385 | } |
| 1386 | return count; |
| 1387 | } |
| 1388 | |
| 1389 | static ssize_t show_monitor(struct device *device, |
| 1390 | struct device_attribute *attr, char *buf) |
| 1391 | { |
| 1392 | struct fsl_diu_data *machine_data = |
| 1393 | container_of(attr, struct fsl_diu_data, dev_attr); |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 1394 | |
| 1395 | switch (machine_data->monitor_port) { |
| 1396 | case FSL_DIU_PORT_DVI: |
| 1397 | return sprintf(buf, "DVI\n"); |
| 1398 | case FSL_DIU_PORT_LVDS: |
| 1399 | return sprintf(buf, "Single-link LVDS\n"); |
| 1400 | case FSL_DIU_PORT_DLVDS: |
| 1401 | return sprintf(buf, "Dual-link LVDS\n"); |
| 1402 | } |
| 1403 | |
| 1404 | return 0; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1405 | } |
| 1406 | |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1407 | static int __devinit fsl_diu_probe(struct platform_device *pdev) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1408 | { |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1409 | struct device_node *np = pdev->dev.of_node; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1410 | struct mfb_info *mfbi; |
Timur Tabi | 89f08e3 | 2011-09-15 16:44:49 -0500 | [diff] [blame] | 1411 | phys_addr_t dummy_ad_addr = 0; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1412 | int ret, i, error = 0; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1413 | struct fsl_diu_data *machine_data; |
Anatolij Gustschin | 4b5006e | 2010-07-23 04:00:37 +0000 | [diff] [blame] | 1414 | int diu_mode; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1415 | |
| 1416 | machine_data = kzalloc(sizeof(struct fsl_diu_data), GFP_KERNEL); |
| 1417 | if (!machine_data) |
| 1418 | return -ENOMEM; |
| 1419 | |
| 1420 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) { |
| 1421 | machine_data->fsl_diu_info[i] = |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1422 | framebuffer_alloc(sizeof(struct mfb_info), &pdev->dev); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1423 | if (!machine_data->fsl_diu_info[i]) { |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1424 | dev_err(&pdev->dev, "cannot allocate memory\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1425 | ret = -ENOMEM; |
| 1426 | goto error2; |
| 1427 | } |
| 1428 | mfbi = machine_data->fsl_diu_info[i]->par; |
| 1429 | memcpy(mfbi, &mfb_template[i], sizeof(struct mfb_info)); |
| 1430 | mfbi->parent = machine_data; |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1431 | |
| 1432 | if (mfbi->index == 0) { |
| 1433 | const u8 *prop; |
| 1434 | int len; |
| 1435 | |
| 1436 | /* Get EDID */ |
| 1437 | prop = of_get_property(np, "edid", &len); |
| 1438 | if (prop && len == EDID_LENGTH) |
| 1439 | mfbi->edid_data = kmemdup(prop, EDID_LENGTH, |
| 1440 | GFP_KERNEL); |
| 1441 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1442 | } |
| 1443 | |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1444 | dr.diu_reg = of_iomap(np, 0); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1445 | if (!dr.diu_reg) { |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1446 | dev_err(&pdev->dev, "cannot map DIU registers\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1447 | ret = -EFAULT; |
| 1448 | goto error2; |
| 1449 | } |
| 1450 | |
Anatolij Gustschin | 4b5006e | 2010-07-23 04:00:37 +0000 | [diff] [blame] | 1451 | diu_mode = in_be32(&dr.diu_reg->diu_mode); |
| 1452 | if (diu_mode != MFB_MODE1) |
| 1453 | out_be32(&dr.diu_reg->diu_mode, 0); /* disable DIU */ |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1454 | |
| 1455 | /* Get the IRQ of the DIU */ |
| 1456 | machine_data->irq = irq_of_parse_and_map(np, 0); |
| 1457 | |
| 1458 | if (!machine_data->irq) { |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1459 | dev_err(&pdev->dev, "could not get DIU IRQ\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1460 | ret = -EINVAL; |
| 1461 | goto error; |
| 1462 | } |
| 1463 | machine_data->monitor_port = monitor_port; |
| 1464 | |
| 1465 | /* Area descriptor memory pool aligns to 64-bit boundary */ |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1466 | if (allocate_buf(&pdev->dev, &pool.ad, |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1467 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8)) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1468 | return -ENOMEM; |
| 1469 | |
| 1470 | /* Get memory for Gamma Table - 32-byte aligned memory */ |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1471 | if (allocate_buf(&pdev->dev, &pool.gamma, 768, 32)) { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1472 | ret = -ENOMEM; |
| 1473 | goto error; |
| 1474 | } |
| 1475 | |
| 1476 | /* For performance, cursor bitmap buffer aligns to 32-byte boundary */ |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1477 | if (allocate_buf(&pdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1478 | 32)) { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1479 | ret = -ENOMEM; |
| 1480 | goto error; |
| 1481 | } |
| 1482 | |
| 1483 | i = ARRAY_SIZE(machine_data->fsl_diu_info); |
| 1484 | machine_data->dummy_ad = (struct diu_ad *) |
| 1485 | ((u32)pool.ad.vaddr + pool.ad.offset) + i; |
| 1486 | machine_data->dummy_ad->paddr = pool.ad.paddr + |
| 1487 | i * sizeof(struct diu_ad); |
| 1488 | machine_data->dummy_aoi_virt = fsl_diu_alloc(64, &dummy_ad_addr); |
| 1489 | if (!machine_data->dummy_aoi_virt) { |
| 1490 | ret = -ENOMEM; |
| 1491 | goto error; |
| 1492 | } |
| 1493 | machine_data->dummy_ad->addr = cpu_to_le32(dummy_ad_addr); |
| 1494 | machine_data->dummy_ad->pix_fmt = 0x88882317; |
| 1495 | machine_data->dummy_ad->src_size_g_alpha = cpu_to_le32((4 << 12) | 4); |
| 1496 | machine_data->dummy_ad->aoi_size = cpu_to_le32((4 << 16) | 2); |
| 1497 | machine_data->dummy_ad->offset_xyi = 0; |
| 1498 | machine_data->dummy_ad->offset_xyd = 0; |
| 1499 | machine_data->dummy_ad->next_ad = 0; |
| 1500 | |
Anatolij Gustschin | 4b5006e | 2010-07-23 04:00:37 +0000 | [diff] [blame] | 1501 | /* |
| 1502 | * Let DIU display splash screen if it was pre-initialized |
| 1503 | * by the bootloader, set dummy area descriptor otherwise. |
| 1504 | */ |
| 1505 | if (diu_mode != MFB_MODE1) |
| 1506 | out_be32(&dr.diu_reg->desc[0], machine_data->dummy_ad->paddr); |
| 1507 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1508 | out_be32(&dr.diu_reg->desc[1], machine_data->dummy_ad->paddr); |
| 1509 | out_be32(&dr.diu_reg->desc[2], machine_data->dummy_ad->paddr); |
| 1510 | |
| 1511 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) { |
| 1512 | machine_data->fsl_diu_info[i]->fix.smem_start = 0; |
| 1513 | mfbi = machine_data->fsl_diu_info[i]->par; |
| 1514 | mfbi->ad = (struct diu_ad *)((u32)pool.ad.vaddr |
| 1515 | + pool.ad.offset) + i; |
| 1516 | mfbi->ad->paddr = pool.ad.paddr + i * sizeof(struct diu_ad); |
| 1517 | ret = install_fb(machine_data->fsl_diu_info[i]); |
| 1518 | if (ret) { |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1519 | dev_err(&pdev->dev, "could not register fb %d\n", i); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1520 | goto error; |
| 1521 | } |
| 1522 | } |
| 1523 | |
| 1524 | if (request_irq_local(machine_data->irq)) { |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1525 | dev_err(&pdev->dev, "could not claim irq\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1526 | goto error; |
| 1527 | } |
| 1528 | |
Wolfram Sang | 1276551 | 2010-04-06 14:34:52 -0700 | [diff] [blame] | 1529 | sysfs_attr_init(&machine_data->dev_attr.attr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1530 | machine_data->dev_attr.attr.name = "monitor"; |
| 1531 | machine_data->dev_attr.attr.mode = S_IRUGO|S_IWUSR; |
| 1532 | machine_data->dev_attr.show = show_monitor; |
| 1533 | machine_data->dev_attr.store = store_monitor; |
| 1534 | error = device_create_file(machine_data->fsl_diu_info[0]->dev, |
| 1535 | &machine_data->dev_attr); |
| 1536 | if (error) { |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1537 | dev_err(&pdev->dev, "could not create sysfs file %s\n", |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1538 | machine_data->dev_attr.attr.name); |
| 1539 | } |
| 1540 | |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1541 | dev_set_drvdata(&pdev->dev, machine_data); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1542 | return 0; |
| 1543 | |
| 1544 | error: |
| 1545 | for (i = ARRAY_SIZE(machine_data->fsl_diu_info); |
| 1546 | i > 0; i--) |
| 1547 | uninstall_fb(machine_data->fsl_diu_info[i - 1]); |
| 1548 | if (pool.ad.vaddr) |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1549 | free_buf(&pdev->dev, &pool.ad, |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1550 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1551 | if (pool.gamma.vaddr) |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1552 | free_buf(&pdev->dev, &pool.gamma, 768, 32); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1553 | if (pool.cursor.vaddr) |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1554 | free_buf(&pdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1555 | 32); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1556 | if (machine_data->dummy_aoi_virt) |
| 1557 | fsl_diu_free(machine_data->dummy_aoi_virt, 64); |
| 1558 | iounmap(dr.diu_reg); |
| 1559 | |
| 1560 | error2: |
| 1561 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) |
| 1562 | if (machine_data->fsl_diu_info[i]) |
| 1563 | framebuffer_release(machine_data->fsl_diu_info[i]); |
| 1564 | kfree(machine_data); |
| 1565 | |
| 1566 | return ret; |
| 1567 | } |
| 1568 | |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1569 | static int fsl_diu_remove(struct platform_device *pdev) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1570 | { |
| 1571 | struct fsl_diu_data *machine_data; |
| 1572 | int i; |
| 1573 | |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1574 | machine_data = dev_get_drvdata(&pdev->dev); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1575 | disable_lcdc(machine_data->fsl_diu_info[0]); |
| 1576 | free_irq_local(machine_data->irq); |
| 1577 | for (i = ARRAY_SIZE(machine_data->fsl_diu_info); i > 0; i--) |
| 1578 | uninstall_fb(machine_data->fsl_diu_info[i - 1]); |
| 1579 | if (pool.ad.vaddr) |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1580 | free_buf(&pdev->dev, &pool.ad, |
Anton Vorontsov | f379188 | 2009-04-04 22:31:20 +0400 | [diff] [blame] | 1581 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1582 | if (pool.gamma.vaddr) |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1583 | free_buf(&pdev->dev, &pool.gamma, 768, 32); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1584 | if (pool.cursor.vaddr) |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1585 | free_buf(&pdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, 32); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1586 | if (machine_data->dummy_aoi_virt) |
| 1587 | fsl_diu_free(machine_data->dummy_aoi_virt, 64); |
| 1588 | iounmap(dr.diu_reg); |
| 1589 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) |
| 1590 | if (machine_data->fsl_diu_info[i]) |
| 1591 | framebuffer_release(machine_data->fsl_diu_info[i]); |
| 1592 | kfree(machine_data); |
| 1593 | |
| 1594 | return 0; |
| 1595 | } |
| 1596 | |
| 1597 | #ifndef MODULE |
| 1598 | static int __init fsl_diu_setup(char *options) |
| 1599 | { |
| 1600 | char *opt; |
| 1601 | unsigned long val; |
| 1602 | |
| 1603 | if (!options || !*options) |
| 1604 | return 0; |
| 1605 | |
| 1606 | while ((opt = strsep(&options, ",")) != NULL) { |
| 1607 | if (!*opt) |
| 1608 | continue; |
| 1609 | if (!strncmp(opt, "monitor=", 8)) { |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 1610 | monitor_port = fsl_diu_name_to_port(opt + 8); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1611 | } else if (!strncmp(opt, "bpp=", 4)) { |
| 1612 | if (!strict_strtoul(opt + 4, 10, &val)) |
| 1613 | default_bpp = val; |
| 1614 | } else |
| 1615 | fb_mode = opt; |
| 1616 | } |
| 1617 | |
| 1618 | return 0; |
| 1619 | } |
| 1620 | #endif |
| 1621 | |
| 1622 | static struct of_device_id fsl_diu_match[] = { |
Anatolij Gustschin | d24720a | 2010-02-17 07:33:22 -0700 | [diff] [blame] | 1623 | #ifdef CONFIG_PPC_MPC512x |
| 1624 | { |
| 1625 | .compatible = "fsl,mpc5121-diu", |
| 1626 | }, |
| 1627 | #endif |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1628 | { |
| 1629 | .compatible = "fsl,diu", |
| 1630 | }, |
| 1631 | {} |
| 1632 | }; |
| 1633 | MODULE_DEVICE_TABLE(of, fsl_diu_match); |
| 1634 | |
Grant Likely | 28541d0 | 2011-02-22 21:07:43 -0700 | [diff] [blame] | 1635 | static struct platform_driver fsl_diu_driver = { |
Grant Likely | 4018294 | 2010-04-13 16:13:02 -0700 | [diff] [blame] | 1636 | .driver = { |
Timur Tabi | f8c6bf6 | 2011-09-15 16:44:53 -0500 | [diff] [blame] | 1637 | .name = "fsl-diu-fb", |
Grant Likely | 4018294 | 2010-04-13 16:13:02 -0700 | [diff] [blame] | 1638 | .owner = THIS_MODULE, |
| 1639 | .of_match_table = fsl_diu_match, |
| 1640 | }, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1641 | .probe = fsl_diu_probe, |
| 1642 | .remove = fsl_diu_remove, |
| 1643 | .suspend = fsl_diu_suspend, |
| 1644 | .resume = fsl_diu_resume, |
| 1645 | }; |
| 1646 | |
| 1647 | static int __init fsl_diu_init(void) |
| 1648 | { |
| 1649 | #ifdef CONFIG_NOT_COHERENT_CACHE |
| 1650 | struct device_node *np; |
| 1651 | const u32 *prop; |
| 1652 | #endif |
| 1653 | int ret; |
| 1654 | #ifndef MODULE |
| 1655 | char *option; |
| 1656 | |
| 1657 | /* |
| 1658 | * For kernel boot options (in 'video=xxxfb:<options>' format) |
| 1659 | */ |
| 1660 | if (fb_get_options("fslfb", &option)) |
| 1661 | return -ENODEV; |
| 1662 | fsl_diu_setup(option); |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 1663 | #else |
| 1664 | monitor_port = fsl_diu_name_to_port(monitor_string); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1665 | #endif |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1666 | pr_info("Freescale Display Interface Unit (DIU) framebuffer driver\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1667 | |
| 1668 | #ifdef CONFIG_NOT_COHERENT_CACHE |
| 1669 | np = of_find_node_by_type(NULL, "cpu"); |
| 1670 | if (!np) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1671 | pr_err("fsl-diu-fb: can't find 'cpu' device node\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1672 | return -ENODEV; |
| 1673 | } |
| 1674 | |
| 1675 | prop = of_get_property(np, "d-cache-size", NULL); |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1676 | if (prop == NULL) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1677 | pr_err("fsl-diu-fb: missing 'd-cache-size' property' " |
| 1678 | "in 'cpu' node\n"); |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1679 | of_node_put(np); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1680 | return -ENODEV; |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1681 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1682 | |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 1683 | /* |
| 1684 | * Freescale PLRU requires 13/8 times the cache size to do a proper |
| 1685 | * displacement flush |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1686 | */ |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1687 | coherence_data_size = be32_to_cpup(prop) * 13; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1688 | coherence_data_size /= 8; |
| 1689 | |
| 1690 | prop = of_get_property(np, "d-cache-line-size", NULL); |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1691 | if (prop == NULL) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1692 | pr_err("fsl-diu-fb: missing 'd-cache-line-size' property' " |
| 1693 | "in 'cpu' node\n"); |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1694 | of_node_put(np); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1695 | return -ENODEV; |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1696 | } |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1697 | d_cache_line_size = be32_to_cpup(prop); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1698 | |
| 1699 | of_node_put(np); |
| 1700 | coherence_data = vmalloc(coherence_data_size); |
| 1701 | if (!coherence_data) |
| 1702 | return -ENOMEM; |
| 1703 | #endif |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 1704 | |
Grant Likely | 28541d0 | 2011-02-22 21:07:43 -0700 | [diff] [blame] | 1705 | ret = platform_driver_register(&fsl_diu_driver); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1706 | if (ret) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1707 | pr_err("fsl-diu-fb: failed to register platform driver\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1708 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
| 1709 | vfree(coherence_data); |
| 1710 | #endif |
| 1711 | iounmap(dr.diu_reg); |
| 1712 | } |
| 1713 | return ret; |
| 1714 | } |
| 1715 | |
| 1716 | static void __exit fsl_diu_exit(void) |
| 1717 | { |
Grant Likely | 28541d0 | 2011-02-22 21:07:43 -0700 | [diff] [blame] | 1718 | platform_driver_unregister(&fsl_diu_driver); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1719 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
| 1720 | vfree(coherence_data); |
| 1721 | #endif |
| 1722 | } |
| 1723 | |
| 1724 | module_init(fsl_diu_init); |
| 1725 | module_exit(fsl_diu_exit); |
| 1726 | |
| 1727 | MODULE_AUTHOR("York Sun <yorksun@freescale.com>"); |
| 1728 | MODULE_DESCRIPTION("Freescale DIU framebuffer driver"); |
| 1729 | MODULE_LICENSE("GPL"); |
| 1730 | |
| 1731 | module_param_named(mode, fb_mode, charp, 0); |
| 1732 | MODULE_PARM_DESC(mode, |
| 1733 | "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" "); |
| 1734 | module_param_named(bpp, default_bpp, ulong, 0); |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1735 | MODULE_PARM_DESC(bpp, "Specify bit-per-pixel if not specified in 'mode'"); |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 1736 | module_param_named(monitor, monitor_string, charp, 0); |
| 1737 | MODULE_PARM_DESC(monitor, "Specify the monitor port " |
| 1738 | "(\"dvi\", \"lvds\", or \"dlvds\") if supported by the platform"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1739 | |