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> |
Timur Tabi | b715f9f | 2011-09-28 16:19:48 -0500 | [diff] [blame] | 33 | #include <linux/spinlock.h> |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 34 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 35 | #include <sysdev/fsl_soc.h> |
Anatolij Gustschin | 0814a97 | 2010-07-23 04:00:36 +0000 | [diff] [blame] | 36 | #include <linux/fsl-diu-fb.h> |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 37 | #include "edid.h" |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 38 | |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 39 | #define NUM_AOIS 5 /* 1 for plane 0, 2 for planes 1 & 2 each */ |
Timur Tabi | b715f9f | 2011-09-28 16:19:48 -0500 | [diff] [blame] | 40 | |
| 41 | /* HW cursor parameters */ |
| 42 | #define MAX_CURS 32 |
| 43 | |
| 44 | /* INT_STATUS/INT_MASK field descriptions */ |
| 45 | #define INT_VSYNC 0x01 /* Vsync interrupt */ |
| 46 | #define INT_VSYNC_WB 0x02 /* Vsync interrupt for write back operation */ |
| 47 | #define INT_UNDRUN 0x04 /* Under run exception interrupt */ |
| 48 | #define INT_PARERR 0x08 /* Display parameters error interrupt */ |
| 49 | #define INT_LS_BF_VS 0x10 /* Lines before vsync. interrupt */ |
| 50 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 51 | /* |
Timur Tabi | 63cf8df | 2011-09-15 16:44:51 -0500 | [diff] [blame] | 52 | * List of supported video modes |
| 53 | * |
Timur Tabi | 760af8f | 2011-09-28 16:19:50 -0500 | [diff] [blame] | 54 | * The first entry is the default video mode. The remain entries are in |
| 55 | * order if increasing resolution and frequency. The 320x240-60 mode is |
| 56 | * the initial AOI for the second and third planes. |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 57 | */ |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 58 | static struct fb_videomode __devinitdata fsl_diu_mode_db[] = { |
| 59 | { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 60 | .refresh = 60, |
| 61 | .xres = 1024, |
| 62 | .yres = 768, |
| 63 | .pixclock = 15385, |
| 64 | .left_margin = 160, |
| 65 | .right_margin = 24, |
| 66 | .upper_margin = 29, |
| 67 | .lower_margin = 3, |
| 68 | .hsync_len = 136, |
| 69 | .vsync_len = 6, |
| 70 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 71 | .vmode = FB_VMODE_NONINTERLACED |
| 72 | }, |
| 73 | { |
Timur Tabi | 760af8f | 2011-09-28 16:19:50 -0500 | [diff] [blame] | 74 | .refresh = 60, |
| 75 | .xres = 320, |
| 76 | .yres = 240, |
| 77 | .pixclock = 79440, |
| 78 | .left_margin = 16, |
| 79 | .right_margin = 16, |
| 80 | .upper_margin = 16, |
| 81 | .lower_margin = 5, |
| 82 | .hsync_len = 48, |
| 83 | .vsync_len = 1, |
| 84 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 85 | .vmode = FB_VMODE_NONINTERLACED |
| 86 | }, |
| 87 | { |
| 88 | .refresh = 60, |
| 89 | .xres = 640, |
| 90 | .yres = 480, |
| 91 | .pixclock = 39722, |
| 92 | .left_margin = 48, |
| 93 | .right_margin = 16, |
| 94 | .upper_margin = 33, |
| 95 | .lower_margin = 10, |
| 96 | .hsync_len = 96, |
| 97 | .vsync_len = 2, |
| 98 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 99 | .vmode = FB_VMODE_NONINTERLACED |
| 100 | }, |
| 101 | { |
| 102 | .refresh = 72, |
| 103 | .xres = 640, |
| 104 | .yres = 480, |
| 105 | .pixclock = 32052, |
| 106 | .left_margin = 128, |
| 107 | .right_margin = 24, |
| 108 | .upper_margin = 28, |
| 109 | .lower_margin = 9, |
| 110 | .hsync_len = 40, |
| 111 | .vsync_len = 3, |
| 112 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 113 | .vmode = FB_VMODE_NONINTERLACED |
| 114 | }, |
| 115 | { |
| 116 | .refresh = 75, |
| 117 | .xres = 640, |
| 118 | .yres = 480, |
| 119 | .pixclock = 31747, |
| 120 | .left_margin = 120, |
| 121 | .right_margin = 16, |
| 122 | .upper_margin = 16, |
| 123 | .lower_margin = 1, |
| 124 | .hsync_len = 64, |
| 125 | .vsync_len = 3, |
| 126 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 127 | .vmode = FB_VMODE_NONINTERLACED |
| 128 | }, |
| 129 | { |
| 130 | .refresh = 90, |
| 131 | .xres = 640, |
| 132 | .yres = 480, |
| 133 | .pixclock = 25057, |
| 134 | .left_margin = 120, |
| 135 | .right_margin = 32, |
| 136 | .upper_margin = 14, |
| 137 | .lower_margin = 25, |
| 138 | .hsync_len = 40, |
| 139 | .vsync_len = 14, |
| 140 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 141 | .vmode = FB_VMODE_NONINTERLACED |
| 142 | }, |
| 143 | { |
| 144 | .refresh = 100, |
| 145 | .xres = 640, |
| 146 | .yres = 480, |
| 147 | .pixclock = 22272, |
| 148 | .left_margin = 48, |
| 149 | .right_margin = 32, |
| 150 | .upper_margin = 17, |
| 151 | .lower_margin = 22, |
| 152 | .hsync_len = 128, |
| 153 | .vsync_len = 12, |
| 154 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 155 | .vmode = FB_VMODE_NONINTERLACED |
| 156 | }, |
| 157 | { |
| 158 | .refresh = 60, |
| 159 | .xres = 800, |
| 160 | .yres = 480, |
| 161 | .pixclock = 33805, |
| 162 | .left_margin = 96, |
| 163 | .right_margin = 24, |
| 164 | .upper_margin = 10, |
| 165 | .lower_margin = 3, |
| 166 | .hsync_len = 72, |
| 167 | .vsync_len = 7, |
| 168 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 169 | .vmode = FB_VMODE_NONINTERLACED |
| 170 | }, |
| 171 | { |
| 172 | .refresh = 60, |
| 173 | .xres = 800, |
| 174 | .yres = 600, |
| 175 | .pixclock = 25000, |
| 176 | .left_margin = 88, |
| 177 | .right_margin = 40, |
| 178 | .upper_margin = 23, |
| 179 | .lower_margin = 1, |
| 180 | .hsync_len = 128, |
| 181 | .vsync_len = 4, |
| 182 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 183 | .vmode = FB_VMODE_NONINTERLACED |
| 184 | }, |
| 185 | { |
| 186 | .refresh = 60, |
| 187 | .xres = 854, |
| 188 | .yres = 480, |
| 189 | .pixclock = 31518, |
| 190 | .left_margin = 104, |
| 191 | .right_margin = 16, |
| 192 | .upper_margin = 13, |
| 193 | .lower_margin = 1, |
| 194 | .hsync_len = 88, |
| 195 | .vsync_len = 3, |
| 196 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 197 | .vmode = FB_VMODE_NONINTERLACED |
| 198 | }, |
| 199 | { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 200 | .refresh = 70, |
| 201 | .xres = 1024, |
| 202 | .yres = 768, |
| 203 | .pixclock = 16886, |
| 204 | .left_margin = 3, |
| 205 | .right_margin = 3, |
| 206 | .upper_margin = 2, |
| 207 | .lower_margin = 2, |
| 208 | .hsync_len = 40, |
| 209 | .vsync_len = 18, |
| 210 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 211 | .vmode = FB_VMODE_NONINTERLACED |
| 212 | }, |
| 213 | { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 214 | .refresh = 75, |
| 215 | .xres = 1024, |
| 216 | .yres = 768, |
| 217 | .pixclock = 15009, |
| 218 | .left_margin = 3, |
| 219 | .right_margin = 3, |
| 220 | .upper_margin = 2, |
| 221 | .lower_margin = 2, |
| 222 | .hsync_len = 80, |
| 223 | .vsync_len = 32, |
| 224 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 225 | .vmode = FB_VMODE_NONINTERLACED |
| 226 | }, |
| 227 | { |
Timur Tabi | 760af8f | 2011-09-28 16:19:50 -0500 | [diff] [blame] | 228 | .refresh = 60, |
| 229 | .xres = 1280, |
| 230 | .yres = 480, |
| 231 | .pixclock = 18939, |
| 232 | .left_margin = 353, |
| 233 | .right_margin = 47, |
| 234 | .upper_margin = 39, |
| 235 | .lower_margin = 4, |
| 236 | .hsync_len = 8, |
| 237 | .vsync_len = 2, |
| 238 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 239 | .vmode = FB_VMODE_NONINTERLACED |
| 240 | }, |
| 241 | { |
| 242 | .refresh = 60, |
| 243 | .xres = 1280, |
| 244 | .yres = 720, |
| 245 | .pixclock = 13426, |
| 246 | .left_margin = 192, |
| 247 | .right_margin = 64, |
| 248 | .upper_margin = 22, |
| 249 | .lower_margin = 1, |
| 250 | .hsync_len = 136, |
| 251 | .vsync_len = 3, |
| 252 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 253 | .vmode = FB_VMODE_NONINTERLACED |
| 254 | }, |
| 255 | { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 256 | .refresh = 60, |
| 257 | .xres = 1280, |
| 258 | .yres = 1024, |
| 259 | .pixclock = 9375, |
| 260 | .left_margin = 38, |
| 261 | .right_margin = 128, |
| 262 | .upper_margin = 2, |
| 263 | .lower_margin = 7, |
| 264 | .hsync_len = 216, |
| 265 | .vsync_len = 37, |
| 266 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 267 | .vmode = FB_VMODE_NONINTERLACED |
| 268 | }, |
| 269 | { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 270 | .refresh = 70, |
| 271 | .xres = 1280, |
| 272 | .yres = 1024, |
| 273 | .pixclock = 9380, |
| 274 | .left_margin = 6, |
| 275 | .right_margin = 6, |
| 276 | .upper_margin = 4, |
| 277 | .lower_margin = 4, |
| 278 | .hsync_len = 60, |
| 279 | .vsync_len = 94, |
| 280 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 281 | .vmode = FB_VMODE_NONINTERLACED |
| 282 | }, |
| 283 | { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 284 | .refresh = 75, |
| 285 | .xres = 1280, |
| 286 | .yres = 1024, |
| 287 | .pixclock = 9380, |
| 288 | .left_margin = 6, |
| 289 | .right_margin = 6, |
| 290 | .upper_margin = 4, |
| 291 | .lower_margin = 4, |
| 292 | .hsync_len = 60, |
| 293 | .vsync_len = 15, |
| 294 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 295 | .vmode = FB_VMODE_NONINTERLACED |
| 296 | }, |
| 297 | { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 298 | .refresh = 60, |
Timur Tabi | 760af8f | 2011-09-28 16:19:50 -0500 | [diff] [blame] | 299 | .xres = 1920, |
| 300 | .yres = 1080, |
| 301 | .pixclock = 5787, |
| 302 | .left_margin = 328, |
| 303 | .right_margin = 120, |
| 304 | .upper_margin = 34, |
| 305 | .lower_margin = 1, |
| 306 | .hsync_len = 208, |
| 307 | .vsync_len = 3, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 308 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 309 | .vmode = FB_VMODE_NONINTERLACED |
| 310 | }, |
| 311 | }; |
| 312 | |
Timur Tabi | 760af8f | 2011-09-28 16:19:50 -0500 | [diff] [blame] | 313 | static char *fb_mode; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 314 | static unsigned long default_bpp = 32; |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 315 | static enum fsl_diu_monitor_port monitor_port; |
| 316 | static char *monitor_string; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 317 | |
| 318 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
| 319 | static u8 *coherence_data; |
| 320 | static size_t coherence_data_size; |
| 321 | static unsigned int d_cache_line_size; |
| 322 | #endif |
| 323 | |
| 324 | static DEFINE_SPINLOCK(diu_lock); |
| 325 | |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 326 | enum mfb_index { |
| 327 | PLANE0 = 0, /* Plane 0, only one AOI that fills the screen */ |
| 328 | PLANE1_AOI0, /* Plane 1, first AOI */ |
| 329 | PLANE1_AOI1, /* Plane 1, second AOI */ |
| 330 | PLANE2_AOI0, /* Plane 2, first AOI */ |
| 331 | PLANE2_AOI1, /* Plane 2, second AOI */ |
| 332 | }; |
| 333 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 334 | struct mfb_info { |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 335 | enum mfb_index index; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 336 | char *id; |
| 337 | int registered; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 338 | unsigned long pseudo_palette[16]; |
| 339 | struct diu_ad *ad; |
| 340 | int cursor_reset; |
| 341 | unsigned char g_alpha; |
| 342 | unsigned int count; |
| 343 | int x_aoi_d; /* aoi display x offset to physical screen */ |
| 344 | int y_aoi_d; /* aoi display y offset to physical screen */ |
| 345 | struct fsl_diu_data *parent; |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 346 | u8 *edid_data; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 347 | }; |
| 348 | |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 349 | /** |
| 350 | * struct fsl_diu_data - per-DIU data structure |
| 351 | * @dma_addr: DMA address of this structure |
| 352 | * @fsl_diu_info: fb_info objects, one per AOI |
| 353 | * @dev_attr: sysfs structure |
| 354 | * @irq: IRQ |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 355 | * @monitor_port: the monitor port this DIU is connected to |
| 356 | * @diu_reg: pointer to the DIU hardware registers |
| 357 | * @reg_lock: spinlock for register access |
| 358 | * @dummy_aoi: video buffer for the 4x4 32-bit dummy AOI |
| 359 | * dummy_ad: DIU Area Descriptor for the dummy AOI |
| 360 | * @ad[]: Area Descriptors for each real AOI |
| 361 | * @gamma: gamma color table |
| 362 | * @cursor: hardware cursor data |
| 363 | * |
| 364 | * This data structure must be allocated with 32-byte alignment, so that the |
| 365 | * internal fields can be aligned properly. |
| 366 | */ |
| 367 | struct fsl_diu_data { |
| 368 | dma_addr_t dma_addr; |
| 369 | struct fb_info fsl_diu_info[NUM_AOIS]; |
| 370 | struct mfb_info mfb[NUM_AOIS]; |
| 371 | struct device_attribute dev_attr; |
| 372 | unsigned int irq; |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 373 | enum fsl_diu_monitor_port monitor_port; |
| 374 | struct diu __iomem *diu_reg; |
| 375 | spinlock_t reg_lock; |
| 376 | u8 dummy_aoi[4 * 4 * 4]; |
| 377 | struct diu_ad dummy_ad __aligned(8); |
| 378 | struct diu_ad ad[NUM_AOIS] __aligned(8); |
| 379 | u8 gamma[256 * 3] __aligned(32); |
| 380 | u8 cursor[MAX_CURS * MAX_CURS * 2] __aligned(32); |
| 381 | } __aligned(32); |
| 382 | |
| 383 | /* Determine the DMA address of a member of the fsl_diu_data structure */ |
| 384 | #define DMA_ADDR(p, f) ((p)->dma_addr + offsetof(struct fsl_diu_data, f)) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 385 | |
| 386 | static struct mfb_info mfb_template[] = { |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 387 | { |
| 388 | .index = PLANE0, |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 389 | .id = "Panel0", |
| 390 | .registered = 0, |
| 391 | .count = 0, |
| 392 | .x_aoi_d = 0, |
| 393 | .y_aoi_d = 0, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 394 | }, |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 395 | { |
| 396 | .index = PLANE1_AOI0, |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 397 | .id = "Panel1 AOI0", |
| 398 | .registered = 0, |
| 399 | .g_alpha = 0xff, |
| 400 | .count = 0, |
| 401 | .x_aoi_d = 0, |
| 402 | .y_aoi_d = 0, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 403 | }, |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 404 | { |
| 405 | .index = PLANE1_AOI1, |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 406 | .id = "Panel1 AOI1", |
| 407 | .registered = 0, |
| 408 | .g_alpha = 0xff, |
| 409 | .count = 0, |
| 410 | .x_aoi_d = 0, |
| 411 | .y_aoi_d = 480, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 412 | }, |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 413 | { |
| 414 | .index = PLANE2_AOI0, |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 415 | .id = "Panel2 AOI0", |
| 416 | .registered = 0, |
| 417 | .g_alpha = 0xff, |
| 418 | .count = 0, |
| 419 | .x_aoi_d = 640, |
| 420 | .y_aoi_d = 0, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 421 | }, |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 422 | { |
| 423 | .index = PLANE2_AOI1, |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 424 | .id = "Panel2 AOI1", |
| 425 | .registered = 0, |
| 426 | .g_alpha = 0xff, |
| 427 | .count = 0, |
| 428 | .x_aoi_d = 640, |
| 429 | .y_aoi_d = 480, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 430 | }, |
| 431 | }; |
| 432 | |
Timur Tabi | 6b51d51 | 2008-07-23 21:31:39 -0700 | [diff] [blame] | 433 | /** |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 434 | * fsl_diu_name_to_port - convert a port name to a monitor port enum |
| 435 | * |
| 436 | * Takes the name of a monitor port ("dvi", "lvds", or "dlvds") and returns |
| 437 | * the enum fsl_diu_monitor_port that corresponds to that string. |
| 438 | * |
| 439 | * For compatibility with older versions, a number ("0", "1", or "2") is also |
| 440 | * supported. |
| 441 | * |
| 442 | * If the string is unknown, DVI is assumed. |
| 443 | * |
| 444 | * If the particular port is not supported by the platform, another port |
| 445 | * (platform-specific) is chosen instead. |
| 446 | */ |
| 447 | static enum fsl_diu_monitor_port fsl_diu_name_to_port(const char *s) |
| 448 | { |
| 449 | enum fsl_diu_monitor_port port = FSL_DIU_PORT_DVI; |
| 450 | unsigned long val; |
| 451 | |
| 452 | if (s) { |
| 453 | if (!strict_strtoul(s, 10, &val) && (val <= 2)) |
| 454 | port = (enum fsl_diu_monitor_port) val; |
| 455 | else if (strncmp(s, "lvds", 4) == 0) |
| 456 | port = FSL_DIU_PORT_LVDS; |
| 457 | else if (strncmp(s, "dlvds", 5) == 0) |
| 458 | port = FSL_DIU_PORT_DLVDS; |
| 459 | } |
| 460 | |
| 461 | return diu_ops.valid_monitor_port(port); |
| 462 | } |
| 463 | |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 464 | /* |
| 465 | * Workaround for failed writing desc register of planes. |
| 466 | * Needed with MPC5121 DIU rev 2.0 silicon. |
| 467 | */ |
| 468 | void wr_reg_wa(u32 *reg, u32 val) |
| 469 | { |
| 470 | do { |
| 471 | out_be32(reg, val); |
| 472 | } while (in_be32(reg) != val); |
| 473 | } |
| 474 | |
Timur Tabi | 7e47c21 | 2011-09-28 16:19:52 -0500 | [diff] [blame] | 475 | static void fsl_diu_enable_panel(struct fb_info *info) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 476 | { |
| 477 | struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 478 | struct diu_ad *ad = mfbi->ad; |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 479 | struct fsl_diu_data *data = mfbi->parent; |
| 480 | struct diu __iomem *hw = data->diu_reg; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 481 | |
Timur Tabi | 7e47c21 | 2011-09-28 16:19:52 -0500 | [diff] [blame] | 482 | switch (mfbi->index) { |
| 483 | case PLANE0: |
| 484 | if (hw->desc[0] != ad->paddr) |
| 485 | wr_reg_wa(&hw->desc[0], ad->paddr); |
| 486 | break; |
| 487 | case PLANE1_AOI0: |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 488 | cmfbi = &data->mfb[2]; |
Timur Tabi | 7e47c21 | 2011-09-28 16:19:52 -0500 | [diff] [blame] | 489 | if (hw->desc[1] != ad->paddr) { /* AOI0 closed */ |
| 490 | if (cmfbi->count > 0) /* AOI1 open */ |
| 491 | ad->next_ad = |
| 492 | cpu_to_le32(cmfbi->ad->paddr); |
| 493 | else |
| 494 | ad->next_ad = 0; |
| 495 | wr_reg_wa(&hw->desc[1], ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 496 | } |
Timur Tabi | 7e47c21 | 2011-09-28 16:19:52 -0500 | [diff] [blame] | 497 | break; |
| 498 | case PLANE2_AOI0: |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 499 | cmfbi = &data->mfb[4]; |
Timur Tabi | 7e47c21 | 2011-09-28 16:19:52 -0500 | [diff] [blame] | 500 | if (hw->desc[2] != ad->paddr) { /* AOI0 closed */ |
| 501 | if (cmfbi->count > 0) /* AOI1 open */ |
| 502 | ad->next_ad = |
| 503 | cpu_to_le32(cmfbi->ad->paddr); |
| 504 | else |
| 505 | ad->next_ad = 0; |
| 506 | wr_reg_wa(&hw->desc[2], ad->paddr); |
| 507 | } |
| 508 | break; |
| 509 | case PLANE1_AOI1: |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 510 | pmfbi = &data->mfb[1]; |
Timur Tabi | 7e47c21 | 2011-09-28 16:19:52 -0500 | [diff] [blame] | 511 | ad->next_ad = 0; |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 512 | if (hw->desc[1] == data->dummy_ad.paddr) |
Timur Tabi | 7e47c21 | 2011-09-28 16:19:52 -0500 | [diff] [blame] | 513 | wr_reg_wa(&hw->desc[1], ad->paddr); |
| 514 | else /* AOI0 open */ |
| 515 | pmfbi->ad->next_ad = cpu_to_le32(ad->paddr); |
| 516 | break; |
| 517 | case PLANE2_AOI1: |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 518 | pmfbi = &data->mfb[3]; |
Timur Tabi | 7e47c21 | 2011-09-28 16:19:52 -0500 | [diff] [blame] | 519 | ad->next_ad = 0; |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 520 | if (hw->desc[2] == data->dummy_ad.paddr) |
Timur Tabi | 7e47c21 | 2011-09-28 16:19:52 -0500 | [diff] [blame] | 521 | wr_reg_wa(&hw->desc[2], ad->paddr); |
| 522 | else /* AOI0 was open */ |
| 523 | pmfbi->ad->next_ad = cpu_to_le32(ad->paddr); |
| 524 | break; |
| 525 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 526 | } |
| 527 | |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 528 | static void fsl_diu_disable_panel(struct fb_info *info) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 529 | { |
| 530 | struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 531 | struct diu_ad *ad = mfbi->ad; |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 532 | struct fsl_diu_data *data = mfbi->parent; |
| 533 | struct diu __iomem *hw = data->diu_reg; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 534 | |
| 535 | switch (mfbi->index) { |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 536 | case PLANE0: |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 537 | if (hw->desc[0] != data->dummy_ad.paddr) |
| 538 | wr_reg_wa(&hw->desc[0], data->dummy_ad.paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 539 | break; |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 540 | case PLANE1_AOI0: |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 541 | cmfbi = &data->mfb[2]; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 542 | if (cmfbi->count > 0) /* AOI1 is open */ |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 543 | wr_reg_wa(&hw->desc[1], cmfbi->ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 544 | /* move AOI1 to the first */ |
| 545 | else /* AOI1 was closed */ |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 546 | wr_reg_wa(&hw->desc[1], data->dummy_ad.paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 547 | /* close AOI 0 */ |
| 548 | break; |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 549 | case PLANE2_AOI0: |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 550 | cmfbi = &data->mfb[4]; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 551 | if (cmfbi->count > 0) /* AOI1 is open */ |
Anatolij Gustschin | 0d9dab3 | 2010-07-23 04:00:35 +0000 | [diff] [blame] | 552 | wr_reg_wa(&hw->desc[2], cmfbi->ad->paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 553 | /* move AOI1 to the first */ |
| 554 | else /* AOI1 was closed */ |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 555 | wr_reg_wa(&hw->desc[2], data->dummy_ad.paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 556 | /* close AOI 0 */ |
| 557 | break; |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 558 | case PLANE1_AOI1: |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 559 | pmfbi = &data->mfb[1]; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 560 | if (hw->desc[1] != ad->paddr) { |
| 561 | /* AOI1 is not the first in the chain */ |
| 562 | if (pmfbi->count > 0) |
| 563 | /* AOI0 is open, must be the first */ |
| 564 | pmfbi->ad->next_ad = 0; |
| 565 | } else /* AOI1 is the first in the chain */ |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 566 | wr_reg_wa(&hw->desc[1], data->dummy_ad.paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 567 | /* close AOI 1 */ |
| 568 | break; |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 569 | case PLANE2_AOI1: |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 570 | pmfbi = &data->mfb[3]; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 571 | if (hw->desc[2] != ad->paddr) { |
| 572 | /* AOI1 is not the first in the chain */ |
| 573 | if (pmfbi->count > 0) |
| 574 | /* AOI0 is open, must be the first */ |
| 575 | pmfbi->ad->next_ad = 0; |
| 576 | } else /* AOI1 is the first in the chain */ |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 577 | wr_reg_wa(&hw->desc[2], data->dummy_ad.paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 578 | /* close AOI 1 */ |
| 579 | break; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 580 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 581 | } |
| 582 | |
| 583 | static void enable_lcdc(struct fb_info *info) |
| 584 | { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 585 | struct mfb_info *mfbi = info->par; |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 586 | struct fsl_diu_data *data = mfbi->parent; |
| 587 | struct diu __iomem *hw = data->diu_reg; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 588 | |
Timur Tabi | d397e916 | 2011-12-19 16:26:16 -0600 | [diff] [blame] | 589 | out_be32(&hw->diu_mode, MFB_MODE1); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 590 | } |
| 591 | |
| 592 | static void disable_lcdc(struct fb_info *info) |
| 593 | { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 594 | struct mfb_info *mfbi = info->par; |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 595 | struct fsl_diu_data *data = mfbi->parent; |
| 596 | struct diu __iomem *hw = data->diu_reg; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 597 | |
Timur Tabi | d397e916 | 2011-12-19 16:26:16 -0600 | [diff] [blame] | 598 | out_be32(&hw->diu_mode, 0); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 599 | } |
| 600 | |
| 601 | static void adjust_aoi_size_position(struct fb_var_screeninfo *var, |
| 602 | struct fb_info *info) |
| 603 | { |
| 604 | struct mfb_info *lower_aoi_mfbi, *upper_aoi_mfbi, *mfbi = info->par; |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 605 | struct fsl_diu_data *data = mfbi->parent; |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 606 | int available_height, upper_aoi_bottom; |
| 607 | enum mfb_index index = mfbi->index; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 608 | int lower_aoi_is_open, upper_aoi_is_open; |
| 609 | __u32 base_plane_width, base_plane_height, upper_aoi_height; |
| 610 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 611 | base_plane_width = data->fsl_diu_info[0].var.xres; |
| 612 | base_plane_height = data->fsl_diu_info[0].var.yres; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 613 | |
York Sun | fdfaa48 | 2008-08-15 00:40:29 -0700 | [diff] [blame] | 614 | if (mfbi->x_aoi_d < 0) |
| 615 | mfbi->x_aoi_d = 0; |
| 616 | if (mfbi->y_aoi_d < 0) |
| 617 | mfbi->y_aoi_d = 0; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 618 | switch (index) { |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 619 | case PLANE0: |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 620 | if (mfbi->x_aoi_d != 0) |
| 621 | mfbi->x_aoi_d = 0; |
| 622 | if (mfbi->y_aoi_d != 0) |
| 623 | mfbi->y_aoi_d = 0; |
| 624 | break; |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 625 | case PLANE1_AOI0: |
| 626 | case PLANE2_AOI0: |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 627 | lower_aoi_mfbi = data->fsl_diu_info[index+1].par; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 628 | lower_aoi_is_open = lower_aoi_mfbi->count > 0 ? 1 : 0; |
| 629 | if (var->xres > base_plane_width) |
| 630 | var->xres = base_plane_width; |
| 631 | if ((mfbi->x_aoi_d + var->xres) > base_plane_width) |
| 632 | mfbi->x_aoi_d = base_plane_width - var->xres; |
| 633 | |
| 634 | if (lower_aoi_is_open) |
| 635 | available_height = lower_aoi_mfbi->y_aoi_d; |
| 636 | else |
| 637 | available_height = base_plane_height; |
| 638 | if (var->yres > available_height) |
| 639 | var->yres = available_height; |
| 640 | if ((mfbi->y_aoi_d + var->yres) > available_height) |
| 641 | mfbi->y_aoi_d = available_height - var->yres; |
| 642 | break; |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 643 | case PLANE1_AOI1: |
| 644 | case PLANE2_AOI1: |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 645 | upper_aoi_mfbi = data->fsl_diu_info[index-1].par; |
| 646 | upper_aoi_height = data->fsl_diu_info[index-1].var.yres; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 647 | upper_aoi_bottom = upper_aoi_mfbi->y_aoi_d + upper_aoi_height; |
| 648 | upper_aoi_is_open = upper_aoi_mfbi->count > 0 ? 1 : 0; |
| 649 | if (var->xres > base_plane_width) |
| 650 | var->xres = base_plane_width; |
| 651 | if ((mfbi->x_aoi_d + var->xres) > base_plane_width) |
| 652 | mfbi->x_aoi_d = base_plane_width - var->xres; |
| 653 | if (mfbi->y_aoi_d < 0) |
| 654 | mfbi->y_aoi_d = 0; |
| 655 | if (upper_aoi_is_open) { |
| 656 | if (mfbi->y_aoi_d < upper_aoi_bottom) |
| 657 | mfbi->y_aoi_d = upper_aoi_bottom; |
| 658 | available_height = base_plane_height |
| 659 | - upper_aoi_bottom; |
| 660 | } else |
| 661 | available_height = base_plane_height; |
| 662 | if (var->yres > available_height) |
| 663 | var->yres = available_height; |
| 664 | if ((mfbi->y_aoi_d + var->yres) > base_plane_height) |
| 665 | mfbi->y_aoi_d = base_plane_height - var->yres; |
| 666 | break; |
| 667 | } |
| 668 | } |
| 669 | /* |
| 670 | * Checks to see if the hardware supports the state requested by var passed |
| 671 | * in. This function does not alter the hardware state! If the var passed in |
| 672 | * is slightly off by what the hardware can support then we alter the var |
| 673 | * PASSED in to what we can do. If the hardware doesn't support mode change |
| 674 | * a -EINVAL will be returned by the upper layers. |
| 675 | */ |
| 676 | static int fsl_diu_check_var(struct fb_var_screeninfo *var, |
| 677 | struct fb_info *info) |
| 678 | { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 679 | if (var->xres_virtual < var->xres) |
| 680 | var->xres_virtual = var->xres; |
| 681 | if (var->yres_virtual < var->yres) |
| 682 | var->yres_virtual = var->yres; |
| 683 | |
| 684 | if (var->xoffset < 0) |
| 685 | var->xoffset = 0; |
| 686 | |
| 687 | if (var->yoffset < 0) |
| 688 | var->yoffset = 0; |
| 689 | |
| 690 | if (var->xoffset + info->var.xres > info->var.xres_virtual) |
| 691 | var->xoffset = info->var.xres_virtual - info->var.xres; |
| 692 | |
| 693 | if (var->yoffset + info->var.yres > info->var.yres_virtual) |
| 694 | var->yoffset = info->var.yres_virtual - info->var.yres; |
| 695 | |
| 696 | if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) && |
| 697 | (var->bits_per_pixel != 16)) |
| 698 | var->bits_per_pixel = default_bpp; |
| 699 | |
| 700 | switch (var->bits_per_pixel) { |
| 701 | case 16: |
| 702 | var->red.length = 5; |
| 703 | var->red.offset = 11; |
| 704 | var->red.msb_right = 0; |
| 705 | |
| 706 | var->green.length = 6; |
| 707 | var->green.offset = 5; |
| 708 | var->green.msb_right = 0; |
| 709 | |
| 710 | var->blue.length = 5; |
| 711 | var->blue.offset = 0; |
| 712 | var->blue.msb_right = 0; |
| 713 | |
| 714 | var->transp.length = 0; |
| 715 | var->transp.offset = 0; |
| 716 | var->transp.msb_right = 0; |
| 717 | break; |
| 718 | case 24: |
| 719 | var->red.length = 8; |
| 720 | var->red.offset = 0; |
| 721 | var->red.msb_right = 0; |
| 722 | |
| 723 | var->green.length = 8; |
| 724 | var->green.offset = 8; |
| 725 | var->green.msb_right = 0; |
| 726 | |
| 727 | var->blue.length = 8; |
| 728 | var->blue.offset = 16; |
| 729 | var->blue.msb_right = 0; |
| 730 | |
| 731 | var->transp.length = 0; |
| 732 | var->transp.offset = 0; |
| 733 | var->transp.msb_right = 0; |
| 734 | break; |
| 735 | case 32: |
| 736 | var->red.length = 8; |
| 737 | var->red.offset = 16; |
| 738 | var->red.msb_right = 0; |
| 739 | |
| 740 | var->green.length = 8; |
| 741 | var->green.offset = 8; |
| 742 | var->green.msb_right = 0; |
| 743 | |
| 744 | var->blue.length = 8; |
| 745 | var->blue.offset = 0; |
| 746 | var->blue.msb_right = 0; |
| 747 | |
| 748 | var->transp.length = 8; |
| 749 | var->transp.offset = 24; |
| 750 | var->transp.msb_right = 0; |
| 751 | |
| 752 | break; |
| 753 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 754 | |
| 755 | var->height = -1; |
| 756 | var->width = -1; |
| 757 | var->grayscale = 0; |
| 758 | |
| 759 | /* Copy nonstd field to/from sync for fbset usage */ |
| 760 | var->sync |= var->nonstd; |
| 761 | var->nonstd |= var->sync; |
| 762 | |
| 763 | adjust_aoi_size_position(var, info); |
| 764 | return 0; |
| 765 | } |
| 766 | |
| 767 | static void set_fix(struct fb_info *info) |
| 768 | { |
| 769 | struct fb_fix_screeninfo *fix = &info->fix; |
| 770 | struct fb_var_screeninfo *var = &info->var; |
| 771 | struct mfb_info *mfbi = info->par; |
| 772 | |
Timur Tabi | ec02dd2 | 2011-09-15 16:44:54 -0500 | [diff] [blame] | 773 | strncpy(fix->id, mfbi->id, sizeof(fix->id)); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 774 | fix->line_length = var->xres_virtual * var->bits_per_pixel / 8; |
| 775 | fix->type = FB_TYPE_PACKED_PIXELS; |
| 776 | fix->accel = FB_ACCEL_NONE; |
| 777 | fix->visual = FB_VISUAL_TRUECOLOR; |
| 778 | fix->xpanstep = 1; |
| 779 | fix->ypanstep = 1; |
| 780 | } |
| 781 | |
| 782 | static void update_lcdc(struct fb_info *info) |
| 783 | { |
| 784 | struct fb_var_screeninfo *var = &info->var; |
| 785 | struct mfb_info *mfbi = info->par; |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 786 | struct fsl_diu_data *data = mfbi->parent; |
Timur Tabi | 3c755b7 | 2011-10-04 19:36:51 -0500 | [diff] [blame] | 787 | struct diu __iomem *hw; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 788 | int i, j; |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 789 | u8 *gamma_table_base; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 790 | |
| 791 | u32 temp; |
| 792 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 793 | hw = data->diu_reg; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 794 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 795 | diu_ops.set_monitor_port(data->monitor_port); |
| 796 | gamma_table_base = data->gamma; |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 797 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 798 | /* Prep for DIU init - gamma table, cursor table */ |
| 799 | |
| 800 | for (i = 0; i <= 2; i++) |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 801 | for (j = 0; j <= 255; j++) |
| 802 | *gamma_table_base++ = j; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 803 | |
Timur Tabi | e09a8c3 | 2011-12-19 16:26:17 -0600 | [diff] [blame] | 804 | if (diu_ops.set_gamma_table) |
| 805 | diu_ops.set_gamma_table(data->monitor_port, data->gamma); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 806 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 807 | disable_lcdc(info); |
| 808 | |
| 809 | /* Program DIU registers */ |
| 810 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 811 | out_be32(&hw->gamma, DMA_ADDR(data, gamma)); |
| 812 | out_be32(&hw->cursor, DMA_ADDR(data, cursor)); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 813 | |
| 814 | out_be32(&hw->bgnd, 0x007F7F7F); /* BGND */ |
| 815 | out_be32(&hw->bgnd_wb, 0); /* BGND_WB */ |
| 816 | out_be32(&hw->disp_size, (var->yres << 16 | var->xres)); |
| 817 | /* DISP SIZE */ |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 818 | out_be32(&hw->wb_size, 0); /* WB SIZE */ |
| 819 | out_be32(&hw->wb_mem_addr, 0); /* WB MEM ADDR */ |
| 820 | |
| 821 | /* Horizontal and vertical configuration register */ |
| 822 | temp = var->left_margin << 22 | /* BP_H */ |
| 823 | var->hsync_len << 11 | /* PW_H */ |
| 824 | var->right_margin; /* FP_H */ |
| 825 | |
| 826 | out_be32(&hw->hsyn_para, temp); |
| 827 | |
| 828 | temp = var->upper_margin << 22 | /* BP_V */ |
| 829 | var->vsync_len << 11 | /* PW_V */ |
| 830 | var->lower_margin; /* FP_V */ |
| 831 | |
| 832 | out_be32(&hw->vsyn_para, temp); |
| 833 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 834 | diu_ops.set_pixel_clock(var->pixclock); |
| 835 | |
| 836 | out_be32(&hw->syn_pol, 0); /* SYNC SIGNALS POLARITY */ |
| 837 | out_be32(&hw->thresholds, 0x00037800); /* The Thresholds */ |
| 838 | out_be32(&hw->int_status, 0); /* INTERRUPT STATUS */ |
| 839 | out_be32(&hw->plut, 0x01F5F666); |
| 840 | |
| 841 | /* Enable the DIU */ |
| 842 | enable_lcdc(info); |
| 843 | } |
| 844 | |
| 845 | static int map_video_memory(struct fb_info *info) |
| 846 | { |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 847 | u32 smem_len = info->fix.line_length * info->var.yres_virtual; |
Timur Tabi | 05342c0 | 2011-12-19 16:26:18 -0600 | [diff] [blame] | 848 | void *p; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 849 | |
Timur Tabi | 05342c0 | 2011-12-19 16:26:18 -0600 | [diff] [blame] | 850 | p = alloc_pages_exact(smem_len, GFP_DMA | __GFP_ZERO); |
| 851 | if (!p) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 852 | dev_err(info->dev, "unable to allocate fb memory\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 853 | return -ENOMEM; |
| 854 | } |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 855 | mutex_lock(&info->mm_lock); |
Timur Tabi | 05342c0 | 2011-12-19 16:26:18 -0600 | [diff] [blame] | 856 | info->screen_base = p; |
| 857 | info->fix.smem_start = virt_to_phys(info->screen_base); |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 858 | info->fix.smem_len = smem_len; |
| 859 | mutex_unlock(&info->mm_lock); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 860 | info->screen_size = info->fix.smem_len; |
| 861 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 862 | return 0; |
| 863 | } |
| 864 | |
| 865 | static void unmap_video_memory(struct fb_info *info) |
| 866 | { |
Timur Tabi | 05342c0 | 2011-12-19 16:26:18 -0600 | [diff] [blame] | 867 | void *p = info->screen_base; |
| 868 | size_t l = info->fix.smem_len; |
| 869 | |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 870 | mutex_lock(&info->mm_lock); |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 871 | info->screen_base = NULL; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 872 | info->fix.smem_start = 0; |
| 873 | info->fix.smem_len = 0; |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 874 | mutex_unlock(&info->mm_lock); |
Timur Tabi | 05342c0 | 2011-12-19 16:26:18 -0600 | [diff] [blame] | 875 | |
| 876 | if (p) |
| 877 | free_pages_exact(p, l); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 878 | } |
| 879 | |
| 880 | /* |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 881 | * Using the fb_var_screeninfo in fb_info we set the aoi of this |
| 882 | * particular framebuffer. It is a light version of fsl_diu_set_par. |
| 883 | */ |
| 884 | static int fsl_diu_set_aoi(struct fb_info *info) |
| 885 | { |
| 886 | struct fb_var_screeninfo *var = &info->var; |
| 887 | struct mfb_info *mfbi = info->par; |
| 888 | struct diu_ad *ad = mfbi->ad; |
| 889 | |
| 890 | /* AOI should not be greater than display size */ |
| 891 | ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset); |
| 892 | ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d); |
| 893 | return 0; |
| 894 | } |
| 895 | |
Timur Tabi | e09a8c3 | 2011-12-19 16:26:17 -0600 | [diff] [blame] | 896 | /** |
| 897 | * fsl_diu_get_pixel_format: return the pixel format for a given color depth |
| 898 | * |
| 899 | * The pixel format is a 32-bit value that determine which bits in each |
| 900 | * pixel are to be used for each color. This is the default function used |
| 901 | * if the platform does not define its own version. |
| 902 | */ |
| 903 | static u32 fsl_diu_get_pixel_format(unsigned int bits_per_pixel) |
| 904 | { |
| 905 | #define PF_BYTE_F 0x10000000 |
| 906 | #define PF_ALPHA_C_MASK 0x0E000000 |
| 907 | #define PF_ALPHA_C_SHIFT 25 |
| 908 | #define PF_BLUE_C_MASK 0x01800000 |
| 909 | #define PF_BLUE_C_SHIFT 23 |
| 910 | #define PF_GREEN_C_MASK 0x00600000 |
| 911 | #define PF_GREEN_C_SHIFT 21 |
| 912 | #define PF_RED_C_MASK 0x00180000 |
| 913 | #define PF_RED_C_SHIFT 19 |
| 914 | #define PF_PALETTE 0x00040000 |
| 915 | #define PF_PIXEL_S_MASK 0x00030000 |
| 916 | #define PF_PIXEL_S_SHIFT 16 |
| 917 | #define PF_COMP_3_MASK 0x0000F000 |
| 918 | #define PF_COMP_3_SHIFT 12 |
| 919 | #define PF_COMP_2_MASK 0x00000F00 |
| 920 | #define PF_COMP_2_SHIFT 8 |
| 921 | #define PF_COMP_1_MASK 0x000000F0 |
| 922 | #define PF_COMP_1_SHIFT 4 |
| 923 | #define PF_COMP_0_MASK 0x0000000F |
| 924 | #define PF_COMP_0_SHIFT 0 |
| 925 | |
| 926 | #define MAKE_PF(alpha, red, blue, green, size, c0, c1, c2, c3) \ |
| 927 | cpu_to_le32(PF_BYTE_F | (alpha << PF_ALPHA_C_SHIFT) | \ |
| 928 | (blue << PF_BLUE_C_SHIFT) | (green << PF_GREEN_C_SHIFT) | \ |
| 929 | (red << PF_RED_C_SHIFT) | (c3 << PF_COMP_3_SHIFT) | \ |
| 930 | (c2 << PF_COMP_2_SHIFT) | (c1 << PF_COMP_1_SHIFT) | \ |
| 931 | (c0 << PF_COMP_0_SHIFT) | (size << PF_PIXEL_S_SHIFT)) |
| 932 | |
| 933 | switch (bits_per_pixel) { |
| 934 | case 32: |
| 935 | /* 0x88883316 */ |
| 936 | return MAKE_PF(3, 2, 0, 1, 3, 8, 8, 8, 8); |
| 937 | case 24: |
| 938 | /* 0x88082219 */ |
| 939 | return MAKE_PF(4, 0, 1, 2, 2, 0, 8, 8, 8); |
| 940 | case 16: |
| 941 | /* 0x65053118 */ |
| 942 | return MAKE_PF(4, 2, 1, 0, 1, 5, 6, 5, 0); |
| 943 | default: |
| 944 | pr_err("fsl-diu: unsupported color depth %u\n", bits_per_pixel); |
| 945 | return 0; |
| 946 | } |
| 947 | } |
| 948 | |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 949 | /* |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 950 | * Using the fb_var_screeninfo in fb_info we set the resolution of this |
| 951 | * particular framebuffer. This function alters the fb_fix_screeninfo stored |
| 952 | * in fb_info. It does not alter var in fb_info since we are using that |
| 953 | * data. This means we depend on the data in var inside fb_info to be |
| 954 | * supported by the hardware. fsl_diu_check_var is always called before |
| 955 | * fsl_diu_set_par to ensure this. |
| 956 | */ |
| 957 | static int fsl_diu_set_par(struct fb_info *info) |
| 958 | { |
| 959 | unsigned long len; |
| 960 | struct fb_var_screeninfo *var = &info->var; |
| 961 | struct mfb_info *mfbi = info->par; |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 962 | struct fsl_diu_data *data = mfbi->parent; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 963 | struct diu_ad *ad = mfbi->ad; |
Timur Tabi | 3c755b7 | 2011-10-04 19:36:51 -0500 | [diff] [blame] | 964 | struct diu __iomem *hw; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 965 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 966 | hw = data->diu_reg; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 967 | |
| 968 | set_fix(info); |
| 969 | mfbi->cursor_reset = 1; |
| 970 | |
| 971 | len = info->var.yres_virtual * info->fix.line_length; |
| 972 | /* Alloc & dealloc each time resolution/bpp change */ |
| 973 | if (len != info->fix.smem_len) { |
| 974 | if (info->fix.smem_start) |
| 975 | unmap_video_memory(info); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 976 | |
| 977 | /* Memory allocation for framebuffer */ |
| 978 | if (map_video_memory(info)) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 979 | dev_err(info->dev, "unable to allocate fb memory 1\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 980 | return -ENOMEM; |
| 981 | } |
| 982 | } |
| 983 | |
Timur Tabi | e09a8c3 | 2011-12-19 16:26:17 -0600 | [diff] [blame] | 984 | if (diu_ops.get_pixel_format) |
| 985 | ad->pix_fmt = diu_ops.get_pixel_format(data->monitor_port, |
| 986 | var->bits_per_pixel); |
| 987 | else |
| 988 | ad->pix_fmt = fsl_diu_get_pixel_format(var->bits_per_pixel); |
| 989 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 990 | ad->addr = cpu_to_le32(info->fix.smem_start); |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 991 | ad->src_size_g_alpha = cpu_to_le32((var->yres_virtual << 12) | |
| 992 | var->xres_virtual) | mfbi->g_alpha; |
| 993 | /* AOI should not be greater than display size */ |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 994 | ad->aoi_size = cpu_to_le32((var->yres << 16) | var->xres); |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 995 | ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 996 | ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d); |
| 997 | |
| 998 | /* Disable chroma keying function */ |
| 999 | ad->ckmax_r = 0; |
| 1000 | ad->ckmax_g = 0; |
| 1001 | ad->ckmax_b = 0; |
| 1002 | |
| 1003 | ad->ckmin_r = 255; |
| 1004 | ad->ckmin_g = 255; |
| 1005 | ad->ckmin_b = 255; |
| 1006 | |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 1007 | if (mfbi->index == PLANE0) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1008 | update_lcdc(info); |
| 1009 | return 0; |
| 1010 | } |
| 1011 | |
| 1012 | static inline __u32 CNVT_TOHW(__u32 val, __u32 width) |
| 1013 | { |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 1014 | return ((val << width) + 0x7FFF - val) >> 16; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1015 | } |
| 1016 | |
| 1017 | /* |
| 1018 | * Set a single color register. The values supplied have a 16 bit magnitude |
| 1019 | * which needs to be scaled in this function for the hardware. Things to take |
| 1020 | * into consideration are how many color registers, if any, are supported with |
| 1021 | * the current color visual. With truecolor mode no color palettes are |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 1022 | * 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] | 1023 | * pseudo_palette in struct fb_info. For pseudocolor mode we have a limited |
| 1024 | * color palette. |
| 1025 | */ |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 1026 | static int fsl_diu_setcolreg(unsigned int regno, unsigned int red, |
| 1027 | unsigned int green, unsigned int blue, |
| 1028 | unsigned int transp, struct fb_info *info) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1029 | { |
| 1030 | int ret = 1; |
| 1031 | |
| 1032 | /* |
| 1033 | * If greyscale is true, then we convert the RGB value |
| 1034 | * to greyscale no matter what visual we are using. |
| 1035 | */ |
| 1036 | if (info->var.grayscale) |
| 1037 | red = green = blue = (19595 * red + 38470 * green + |
| 1038 | 7471 * blue) >> 16; |
| 1039 | switch (info->fix.visual) { |
| 1040 | case FB_VISUAL_TRUECOLOR: |
| 1041 | /* |
| 1042 | * 16-bit True Colour. We encode the RGB value |
| 1043 | * according to the RGB bitfield information. |
| 1044 | */ |
| 1045 | if (regno < 16) { |
| 1046 | u32 *pal = info->pseudo_palette; |
| 1047 | u32 v; |
| 1048 | |
| 1049 | red = CNVT_TOHW(red, info->var.red.length); |
| 1050 | green = CNVT_TOHW(green, info->var.green.length); |
| 1051 | blue = CNVT_TOHW(blue, info->var.blue.length); |
| 1052 | transp = CNVT_TOHW(transp, info->var.transp.length); |
| 1053 | |
| 1054 | v = (red << info->var.red.offset) | |
| 1055 | (green << info->var.green.offset) | |
| 1056 | (blue << info->var.blue.offset) | |
| 1057 | (transp << info->var.transp.offset); |
| 1058 | |
| 1059 | pal[regno] = v; |
| 1060 | ret = 0; |
| 1061 | } |
| 1062 | break; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1063 | } |
| 1064 | |
| 1065 | return ret; |
| 1066 | } |
| 1067 | |
| 1068 | /* |
| 1069 | * Pan (or wrap, depending on the `vmode' field) the display using the |
| 1070 | * 'xoffset' and 'yoffset' fields of the 'var' structure. If the values |
| 1071 | * don't fit, return -EINVAL. |
| 1072 | */ |
| 1073 | static int fsl_diu_pan_display(struct fb_var_screeninfo *var, |
| 1074 | struct fb_info *info) |
| 1075 | { |
| 1076 | if ((info->var.xoffset == var->xoffset) && |
| 1077 | (info->var.yoffset == var->yoffset)) |
| 1078 | return 0; /* No change, do nothing */ |
| 1079 | |
| 1080 | if (var->xoffset < 0 || var->yoffset < 0 |
| 1081 | || var->xoffset + info->var.xres > info->var.xres_virtual |
| 1082 | || var->yoffset + info->var.yres > info->var.yres_virtual) |
| 1083 | return -EINVAL; |
| 1084 | |
| 1085 | info->var.xoffset = var->xoffset; |
| 1086 | info->var.yoffset = var->yoffset; |
| 1087 | |
| 1088 | if (var->vmode & FB_VMODE_YWRAP) |
| 1089 | info->var.vmode |= FB_VMODE_YWRAP; |
| 1090 | else |
| 1091 | info->var.vmode &= ~FB_VMODE_YWRAP; |
| 1092 | |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 1093 | fsl_diu_set_aoi(info); |
| 1094 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1095 | return 0; |
| 1096 | } |
| 1097 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1098 | static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd, |
| 1099 | unsigned long arg) |
| 1100 | { |
| 1101 | struct mfb_info *mfbi = info->par; |
| 1102 | struct diu_ad *ad = mfbi->ad; |
| 1103 | struct mfb_chroma_key ck; |
| 1104 | unsigned char global_alpha; |
| 1105 | struct aoi_display_offset aoi_d; |
| 1106 | __u32 pix_fmt; |
| 1107 | void __user *buf = (void __user *)arg; |
| 1108 | |
| 1109 | if (!arg) |
| 1110 | return -EINVAL; |
| 1111 | switch (cmd) { |
Timur Tabi | 36b0b1d | 2011-10-04 19:36:44 -0500 | [diff] [blame] | 1112 | case MFB_SET_PIXFMT_OLD: |
| 1113 | dev_warn(info->dev, |
| 1114 | "MFB_SET_PIXFMT value of 0x%08x is deprecated.\n", |
| 1115 | MFB_SET_PIXFMT_OLD); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1116 | case MFB_SET_PIXFMT: |
| 1117 | if (copy_from_user(&pix_fmt, buf, sizeof(pix_fmt))) |
| 1118 | return -EFAULT; |
| 1119 | ad->pix_fmt = pix_fmt; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1120 | break; |
Timur Tabi | 36b0b1d | 2011-10-04 19:36:44 -0500 | [diff] [blame] | 1121 | case MFB_GET_PIXFMT_OLD: |
| 1122 | dev_warn(info->dev, |
| 1123 | "MFB_GET_PIXFMT value of 0x%08x is deprecated.\n", |
| 1124 | MFB_GET_PIXFMT_OLD); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1125 | case MFB_GET_PIXFMT: |
| 1126 | pix_fmt = ad->pix_fmt; |
| 1127 | if (copy_to_user(buf, &pix_fmt, sizeof(pix_fmt))) |
| 1128 | return -EFAULT; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1129 | break; |
| 1130 | case MFB_SET_AOID: |
| 1131 | if (copy_from_user(&aoi_d, buf, sizeof(aoi_d))) |
| 1132 | return -EFAULT; |
| 1133 | mfbi->x_aoi_d = aoi_d.x_aoi_d; |
| 1134 | mfbi->y_aoi_d = aoi_d.y_aoi_d; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1135 | fsl_diu_check_var(&info->var, info); |
York Sun | ae5591e | 2008-08-15 00:40:28 -0700 | [diff] [blame] | 1136 | fsl_diu_set_aoi(info); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1137 | break; |
| 1138 | case MFB_GET_AOID: |
| 1139 | aoi_d.x_aoi_d = mfbi->x_aoi_d; |
| 1140 | aoi_d.y_aoi_d = mfbi->y_aoi_d; |
| 1141 | if (copy_to_user(buf, &aoi_d, sizeof(aoi_d))) |
| 1142 | return -EFAULT; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1143 | break; |
| 1144 | case MFB_GET_ALPHA: |
| 1145 | global_alpha = mfbi->g_alpha; |
| 1146 | if (copy_to_user(buf, &global_alpha, sizeof(global_alpha))) |
| 1147 | return -EFAULT; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1148 | break; |
| 1149 | case MFB_SET_ALPHA: |
| 1150 | /* set panel information */ |
| 1151 | if (copy_from_user(&global_alpha, buf, sizeof(global_alpha))) |
| 1152 | return -EFAULT; |
| 1153 | ad->src_size_g_alpha = (ad->src_size_g_alpha & (~0xff)) | |
| 1154 | (global_alpha & 0xff); |
| 1155 | mfbi->g_alpha = global_alpha; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1156 | break; |
| 1157 | case MFB_SET_CHROMA_KEY: |
| 1158 | /* set panel winformation */ |
| 1159 | if (copy_from_user(&ck, buf, sizeof(ck))) |
| 1160 | return -EFAULT; |
| 1161 | |
| 1162 | if (ck.enable && |
| 1163 | (ck.red_max < ck.red_min || |
| 1164 | ck.green_max < ck.green_min || |
| 1165 | ck.blue_max < ck.blue_min)) |
| 1166 | return -EINVAL; |
| 1167 | |
| 1168 | if (!ck.enable) { |
| 1169 | ad->ckmax_r = 0; |
| 1170 | ad->ckmax_g = 0; |
| 1171 | ad->ckmax_b = 0; |
| 1172 | ad->ckmin_r = 255; |
| 1173 | ad->ckmin_g = 255; |
| 1174 | ad->ckmin_b = 255; |
| 1175 | } else { |
| 1176 | ad->ckmax_r = ck.red_max; |
| 1177 | ad->ckmax_g = ck.green_max; |
| 1178 | ad->ckmax_b = ck.blue_max; |
| 1179 | ad->ckmin_r = ck.red_min; |
| 1180 | ad->ckmin_g = ck.green_min; |
| 1181 | ad->ckmin_b = ck.blue_min; |
| 1182 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1183 | break; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1184 | default: |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1185 | dev_err(info->dev, "unknown ioctl command (0x%08X)\n", cmd); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1186 | return -ENOIOCTLCMD; |
| 1187 | } |
| 1188 | |
| 1189 | return 0; |
| 1190 | } |
| 1191 | |
| 1192 | /* turn on fb if count == 1 |
| 1193 | */ |
| 1194 | static int fsl_diu_open(struct fb_info *info, int user) |
| 1195 | { |
| 1196 | struct mfb_info *mfbi = info->par; |
| 1197 | int res = 0; |
| 1198 | |
Anatolij Gustschin | 4b5006e | 2010-07-23 04:00:37 +0000 | [diff] [blame] | 1199 | /* free boot splash memory on first /dev/fb0 open */ |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 1200 | if ((mfbi->index == PLANE0) && diu_ops.release_bootmem) |
Anatolij Gustschin | 4b5006e | 2010-07-23 04:00:37 +0000 | [diff] [blame] | 1201 | diu_ops.release_bootmem(); |
| 1202 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1203 | spin_lock(&diu_lock); |
| 1204 | mfbi->count++; |
| 1205 | if (mfbi->count == 1) { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1206 | fsl_diu_check_var(&info->var, info); |
| 1207 | res = fsl_diu_set_par(info); |
| 1208 | if (res < 0) |
| 1209 | mfbi->count--; |
Timur Tabi | 7e47c21 | 2011-09-28 16:19:52 -0500 | [diff] [blame] | 1210 | else |
| 1211 | fsl_diu_enable_panel(info); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1212 | } |
| 1213 | |
| 1214 | spin_unlock(&diu_lock); |
| 1215 | return res; |
| 1216 | } |
| 1217 | |
| 1218 | /* turn off fb if count == 0 |
| 1219 | */ |
| 1220 | static int fsl_diu_release(struct fb_info *info, int user) |
| 1221 | { |
| 1222 | struct mfb_info *mfbi = info->par; |
| 1223 | int res = 0; |
| 1224 | |
| 1225 | spin_lock(&diu_lock); |
| 1226 | mfbi->count--; |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 1227 | if (mfbi->count == 0) |
| 1228 | fsl_diu_disable_panel(info); |
| 1229 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1230 | spin_unlock(&diu_lock); |
| 1231 | return res; |
| 1232 | } |
| 1233 | |
| 1234 | static struct fb_ops fsl_diu_ops = { |
| 1235 | .owner = THIS_MODULE, |
| 1236 | .fb_check_var = fsl_diu_check_var, |
| 1237 | .fb_set_par = fsl_diu_set_par, |
| 1238 | .fb_setcolreg = fsl_diu_setcolreg, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1239 | .fb_pan_display = fsl_diu_pan_display, |
| 1240 | .fb_fillrect = cfb_fillrect, |
| 1241 | .fb_copyarea = cfb_copyarea, |
| 1242 | .fb_imageblit = cfb_imageblit, |
| 1243 | .fb_ioctl = fsl_diu_ioctl, |
| 1244 | .fb_open = fsl_diu_open, |
| 1245 | .fb_release = fsl_diu_release, |
| 1246 | }; |
| 1247 | |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 1248 | static int __devinit install_fb(struct fb_info *info) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1249 | { |
| 1250 | int rc; |
| 1251 | struct mfb_info *mfbi = info->par; |
| 1252 | const char *aoi_mode, *init_aoi_mode = "320x240"; |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1253 | struct fb_videomode *db = fsl_diu_mode_db; |
| 1254 | unsigned int dbsize = ARRAY_SIZE(fsl_diu_mode_db); |
| 1255 | int has_default_mode = 1; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1256 | |
Timur Tabi | f934fbd | 2011-12-19 16:26:14 -0600 | [diff] [blame] | 1257 | info->var.activate = FB_ACTIVATE_NOW; |
| 1258 | info->fbops = &fsl_diu_ops; |
Timur Tabi | 934dbee | 2011-12-19 16:26:15 -0600 | [diff] [blame] | 1259 | info->flags = FBINFO_DEFAULT | FBINFO_VIRTFB | FBINFO_PARTIAL_PAN_OK | |
| 1260 | FBINFO_READS_FAST; |
Timur Tabi | f934fbd | 2011-12-19 16:26:14 -0600 | [diff] [blame] | 1261 | info->pseudo_palette = mfbi->pseudo_palette; |
| 1262 | |
| 1263 | rc = fb_alloc_cmap(&info->cmap, 16, 0); |
| 1264 | if (rc) |
| 1265 | return rc; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1266 | |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 1267 | if (mfbi->index == PLANE0) { |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1268 | if (mfbi->edid_data) { |
| 1269 | /* Now build modedb from EDID */ |
| 1270 | fb_edid_to_monspecs(mfbi->edid_data, &info->monspecs); |
| 1271 | fb_videomode_to_modelist(info->monspecs.modedb, |
| 1272 | info->monspecs.modedb_len, |
| 1273 | &info->modelist); |
| 1274 | db = info->monspecs.modedb; |
| 1275 | dbsize = info->monspecs.modedb_len; |
| 1276 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1277 | aoi_mode = fb_mode; |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1278 | } else { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1279 | aoi_mode = init_aoi_mode; |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1280 | } |
Timur Tabi | 63cf8df | 2011-09-15 16:44:51 -0500 | [diff] [blame] | 1281 | rc = fb_find_mode(&info->var, info, aoi_mode, db, dbsize, NULL, |
| 1282 | default_bpp); |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1283 | if (!rc) { |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1284 | /* |
| 1285 | * For plane 0 we continue and look into |
| 1286 | * driver's internal modedb. |
| 1287 | */ |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 1288 | if ((mfbi->index == PLANE0) && mfbi->edid_data) |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1289 | has_default_mode = 0; |
| 1290 | else |
| 1291 | return -EINVAL; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1292 | } |
| 1293 | |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1294 | if (!has_default_mode) { |
| 1295 | 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] | 1296 | ARRAY_SIZE(fsl_diu_mode_db), NULL, default_bpp); |
| 1297 | if (rc) |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1298 | has_default_mode = 1; |
| 1299 | } |
| 1300 | |
| 1301 | /* Still not found, use preferred mode from database if any */ |
| 1302 | if (!has_default_mode && info->monspecs.modedb) { |
| 1303 | struct fb_monspecs *specs = &info->monspecs; |
| 1304 | struct fb_videomode *modedb = &specs->modedb[0]; |
| 1305 | |
| 1306 | /* |
| 1307 | * Get preferred timing. If not found, |
| 1308 | * first mode in database will be used. |
| 1309 | */ |
| 1310 | if (specs->misc & FB_MISC_1ST_DETAIL) { |
| 1311 | int i; |
| 1312 | |
| 1313 | for (i = 0; i < specs->modedb_len; i++) { |
| 1314 | if (specs->modedb[i].flag & FB_MODE_IS_FIRST) { |
| 1315 | modedb = &specs->modedb[i]; |
| 1316 | break; |
| 1317 | } |
| 1318 | } |
| 1319 | } |
| 1320 | |
| 1321 | info->var.bits_per_pixel = default_bpp; |
| 1322 | fb_videomode_to_var(&info->var, modedb); |
| 1323 | } |
| 1324 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1325 | if (fsl_diu_check_var(&info->var, info)) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1326 | dev_err(info->dev, "fsl_diu_check_var failed\n"); |
Timur Tabi | 589c797 | 2011-09-15 16:44:55 -0500 | [diff] [blame] | 1327 | unmap_video_memory(info); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1328 | fb_dealloc_cmap(&info->cmap); |
| 1329 | return -EINVAL; |
| 1330 | } |
| 1331 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1332 | if (register_framebuffer(info) < 0) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1333 | dev_err(info->dev, "register_framebuffer failed\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1334 | unmap_video_memory(info); |
| 1335 | fb_dealloc_cmap(&info->cmap); |
| 1336 | return -EINVAL; |
| 1337 | } |
| 1338 | |
| 1339 | mfbi->registered = 1; |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1340 | dev_info(info->dev, "%s registered successfully\n", mfbi->id); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1341 | |
| 1342 | return 0; |
| 1343 | } |
| 1344 | |
Anton Vorontsov | 05946bc | 2008-07-04 09:59:38 -0700 | [diff] [blame] | 1345 | static void uninstall_fb(struct fb_info *info) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1346 | { |
| 1347 | struct mfb_info *mfbi = info->par; |
| 1348 | |
| 1349 | if (!mfbi->registered) |
| 1350 | return; |
| 1351 | |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 1352 | if (mfbi->index == PLANE0) |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1353 | kfree(mfbi->edid_data); |
| 1354 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1355 | unregister_framebuffer(info); |
| 1356 | unmap_video_memory(info); |
| 1357 | if (&info->cmap) |
| 1358 | fb_dealloc_cmap(&info->cmap); |
| 1359 | |
| 1360 | mfbi->registered = 0; |
| 1361 | } |
| 1362 | |
| 1363 | static irqreturn_t fsl_diu_isr(int irq, void *dev_id) |
| 1364 | { |
Timur Tabi | 3c755b7 | 2011-10-04 19:36:51 -0500 | [diff] [blame] | 1365 | struct diu __iomem *hw = dev_id; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1366 | unsigned int status = in_be32(&hw->int_status); |
| 1367 | |
| 1368 | if (status) { |
| 1369 | /* This is the workaround for underrun */ |
| 1370 | if (status & INT_UNDRUN) { |
| 1371 | out_be32(&hw->diu_mode, 0); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1372 | udelay(1); |
| 1373 | out_be32(&hw->diu_mode, 1); |
| 1374 | } |
| 1375 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
| 1376 | else if (status & INT_VSYNC) { |
| 1377 | unsigned int i; |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 1378 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1379 | for (i = 0; i < coherence_data_size; |
| 1380 | i += d_cache_line_size) |
| 1381 | __asm__ __volatile__ ( |
| 1382 | "dcbz 0, %[input]" |
| 1383 | ::[input]"r"(&coherence_data[i])); |
| 1384 | } |
| 1385 | #endif |
| 1386 | return IRQ_HANDLED; |
| 1387 | } |
| 1388 | return IRQ_NONE; |
| 1389 | } |
| 1390 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1391 | static int request_irq_local(struct fsl_diu_data *data) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1392 | { |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1393 | struct diu __iomem *hw = data->diu_reg; |
Timur Tabi | bada04f | 2011-09-15 16:44:52 -0500 | [diff] [blame] | 1394 | u32 ints; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1395 | int ret; |
| 1396 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1397 | /* Read to clear the status */ |
Timur Tabi | bada04f | 2011-09-15 16:44:52 -0500 | [diff] [blame] | 1398 | in_be32(&hw->int_status); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1399 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1400 | ret = request_irq(data->irq, fsl_diu_isr, 0, "fsl-diu-fb", hw); |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1401 | if (!ret) { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1402 | ints = INT_PARERR | INT_LS_BF_VS; |
| 1403 | #if !defined(CONFIG_NOT_COHERENT_CACHE) |
| 1404 | ints |= INT_VSYNC; |
| 1405 | #endif |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 1406 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1407 | /* Read to clear the status */ |
Timur Tabi | bada04f | 2011-09-15 16:44:52 -0500 | [diff] [blame] | 1408 | in_be32(&hw->int_status); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1409 | out_be32(&hw->int_mask, ints); |
| 1410 | } |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 1411 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1412 | return ret; |
| 1413 | } |
| 1414 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1415 | static void free_irq_local(struct fsl_diu_data *data) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1416 | { |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1417 | struct diu __iomem *hw = data->diu_reg; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1418 | |
| 1419 | /* Disable all LCDC interrupt */ |
| 1420 | out_be32(&hw->int_mask, 0x1f); |
| 1421 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1422 | free_irq(data->irq, NULL); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1423 | } |
| 1424 | |
| 1425 | #ifdef CONFIG_PM |
| 1426 | /* |
| 1427 | * Power management hooks. Note that we won't be called from IRQ context, |
| 1428 | * unlike the blank functions above, so we may sleep. |
| 1429 | */ |
Grant Likely | 2dc1158 | 2010-08-06 09:25:50 -0600 | [diff] [blame] | 1430 | 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] | 1431 | { |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1432 | struct fsl_diu_data *data; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1433 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1434 | data = dev_get_drvdata(&ofdev->dev); |
Michael Neuling | f7f5ef0 | 2012-01-28 19:35:24 +0000 | [diff] [blame] | 1435 | disable_lcdc(data->fsl_diu_info); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1436 | |
| 1437 | return 0; |
| 1438 | } |
| 1439 | |
Grant Likely | 2dc1158 | 2010-08-06 09:25:50 -0600 | [diff] [blame] | 1440 | static int fsl_diu_resume(struct platform_device *ofdev) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1441 | { |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1442 | struct fsl_diu_data *data; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1443 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1444 | data = dev_get_drvdata(&ofdev->dev); |
Michael Neuling | f7f5ef0 | 2012-01-28 19:35:24 +0000 | [diff] [blame] | 1445 | enable_lcdc(data->fsl_diu_info); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1446 | |
| 1447 | return 0; |
| 1448 | } |
| 1449 | |
| 1450 | #else |
| 1451 | #define fsl_diu_suspend NULL |
| 1452 | #define fsl_diu_resume NULL |
| 1453 | #endif /* CONFIG_PM */ |
| 1454 | |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1455 | static ssize_t store_monitor(struct device *device, |
| 1456 | struct device_attribute *attr, const char *buf, size_t count) |
| 1457 | { |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 1458 | enum fsl_diu_monitor_port old_monitor_port; |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1459 | struct fsl_diu_data *data = |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1460 | container_of(attr, struct fsl_diu_data, dev_attr); |
| 1461 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1462 | old_monitor_port = data->monitor_port; |
| 1463 | data->monitor_port = fsl_diu_name_to_port(buf); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1464 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1465 | if (old_monitor_port != data->monitor_port) { |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1466 | /* All AOIs need adjust pixel format |
| 1467 | * fsl_diu_set_par only change the pixsel format here |
| 1468 | * unlikely to fail. */ |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1469 | unsigned int i; |
| 1470 | |
| 1471 | for (i=0; i < NUM_AOIS; i++) |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1472 | fsl_diu_set_par(&data->fsl_diu_info[i]); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1473 | } |
| 1474 | return count; |
| 1475 | } |
| 1476 | |
| 1477 | static ssize_t show_monitor(struct device *device, |
| 1478 | struct device_attribute *attr, char *buf) |
| 1479 | { |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1480 | struct fsl_diu_data *data = |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1481 | container_of(attr, struct fsl_diu_data, dev_attr); |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 1482 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1483 | switch (data->monitor_port) { |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 1484 | case FSL_DIU_PORT_DVI: |
| 1485 | return sprintf(buf, "DVI\n"); |
| 1486 | case FSL_DIU_PORT_LVDS: |
| 1487 | return sprintf(buf, "Single-link LVDS\n"); |
| 1488 | case FSL_DIU_PORT_DLVDS: |
| 1489 | return sprintf(buf, "Dual-link LVDS\n"); |
| 1490 | } |
| 1491 | |
| 1492 | return 0; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1493 | } |
| 1494 | |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1495 | static int __devinit fsl_diu_probe(struct platform_device *pdev) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1496 | { |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1497 | struct device_node *np = pdev->dev.of_node; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1498 | struct mfb_info *mfbi; |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1499 | struct fsl_diu_data *data; |
Anatolij Gustschin | 4b5006e | 2010-07-23 04:00:37 +0000 | [diff] [blame] | 1500 | int diu_mode; |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1501 | dma_addr_t dma_addr; /* DMA addr of fsl_diu_data struct */ |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1502 | unsigned int i; |
| 1503 | int ret; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1504 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1505 | data = dma_alloc_coherent(&pdev->dev, sizeof(struct fsl_diu_data), |
| 1506 | &dma_addr, GFP_DMA | __GFP_ZERO); |
| 1507 | if (!data) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1508 | return -ENOMEM; |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1509 | data->dma_addr = dma_addr; |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1510 | |
| 1511 | /* |
| 1512 | * dma_alloc_coherent() uses a page allocator, so the address is |
| 1513 | * always page-aligned. We need the memory to be 32-byte aligned, |
| 1514 | * so that's good. However, if one day the allocator changes, we |
| 1515 | * need to catch that. It's not worth the effort to handle unaligned |
| 1516 | * alloctions now because it's highly unlikely to ever be a problem. |
| 1517 | */ |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1518 | if ((unsigned long)data & 31) { |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1519 | dev_err(&pdev->dev, "misaligned allocation"); |
| 1520 | ret = -ENOMEM; |
| 1521 | goto error; |
| 1522 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1523 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1524 | spin_lock_init(&data->reg_lock); |
Timur Tabi | 3c755b7 | 2011-10-04 19:36:51 -0500 | [diff] [blame] | 1525 | |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1526 | for (i = 0; i < NUM_AOIS; i++) { |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1527 | struct fb_info *info = &data->fsl_diu_info[i]; |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1528 | |
| 1529 | info->device = &pdev->dev; |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1530 | info->par = &data->mfb[i]; |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1531 | |
| 1532 | /* |
| 1533 | * We store the physical address of the AD in the reserved |
| 1534 | * 'paddr' field of the AD itself. |
| 1535 | */ |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1536 | data->ad[i].paddr = DMA_ADDR(data, ad[i]); |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1537 | |
| 1538 | info->fix.smem_start = 0; |
| 1539 | |
| 1540 | /* Initialize the AOI data structure */ |
| 1541 | mfbi = info->par; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1542 | memcpy(mfbi, &mfb_template[i], sizeof(struct mfb_info)); |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1543 | mfbi->parent = data; |
| 1544 | mfbi->ad = &data->ad[i]; |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1545 | |
Timur Tabi | 2572df9 | 2011-09-28 16:19:51 -0500 | [diff] [blame] | 1546 | if (mfbi->index == PLANE0) { |
Anatolij Gustschin | 8b856f0 | 2010-07-23 04:00:39 +0000 | [diff] [blame] | 1547 | const u8 *prop; |
| 1548 | int len; |
| 1549 | |
| 1550 | /* Get EDID */ |
| 1551 | prop = of_get_property(np, "edid", &len); |
| 1552 | if (prop && len == EDID_LENGTH) |
| 1553 | mfbi->edid_data = kmemdup(prop, EDID_LENGTH, |
| 1554 | GFP_KERNEL); |
| 1555 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1556 | } |
| 1557 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1558 | data->diu_reg = of_iomap(np, 0); |
| 1559 | if (!data->diu_reg) { |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1560 | dev_err(&pdev->dev, "cannot map DIU registers\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1561 | ret = -EFAULT; |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1562 | goto error; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1563 | } |
| 1564 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1565 | diu_mode = in_be32(&data->diu_reg->diu_mode); |
Timur Tabi | c4e5a02 | 2011-09-28 16:19:53 -0500 | [diff] [blame] | 1566 | if (diu_mode == MFB_MODE0) |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1567 | out_be32(&data->diu_reg->diu_mode, 0); /* disable DIU */ |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1568 | |
| 1569 | /* Get the IRQ of the DIU */ |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1570 | data->irq = irq_of_parse_and_map(np, 0); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1571 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1572 | if (!data->irq) { |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1573 | dev_err(&pdev->dev, "could not get DIU IRQ\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1574 | ret = -EINVAL; |
| 1575 | goto error; |
| 1576 | } |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1577 | data->monitor_port = monitor_port; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1578 | |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1579 | /* Initialize the dummy Area Descriptor */ |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1580 | data->dummy_ad.addr = cpu_to_le32(DMA_ADDR(data, dummy_aoi)); |
| 1581 | data->dummy_ad.pix_fmt = 0x88882317; |
| 1582 | data->dummy_ad.src_size_g_alpha = cpu_to_le32((4 << 12) | 4); |
| 1583 | data->dummy_ad.aoi_size = cpu_to_le32((4 << 16) | 2); |
| 1584 | data->dummy_ad.offset_xyi = 0; |
| 1585 | data->dummy_ad.offset_xyd = 0; |
| 1586 | data->dummy_ad.next_ad = 0; |
| 1587 | data->dummy_ad.paddr = DMA_ADDR(data, dummy_ad); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1588 | |
Anatolij Gustschin | 4b5006e | 2010-07-23 04:00:37 +0000 | [diff] [blame] | 1589 | /* |
| 1590 | * Let DIU display splash screen if it was pre-initialized |
| 1591 | * by the bootloader, set dummy area descriptor otherwise. |
| 1592 | */ |
Timur Tabi | c4e5a02 | 2011-09-28 16:19:53 -0500 | [diff] [blame] | 1593 | if (diu_mode == MFB_MODE0) |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1594 | out_be32(&data->diu_reg->desc[0], data->dummy_ad.paddr); |
Anatolij Gustschin | 4b5006e | 2010-07-23 04:00:37 +0000 | [diff] [blame] | 1595 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1596 | out_be32(&data->diu_reg->desc[1], data->dummy_ad.paddr); |
| 1597 | out_be32(&data->diu_reg->desc[2], data->dummy_ad.paddr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1598 | |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1599 | for (i = 0; i < NUM_AOIS; i++) { |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1600 | ret = install_fb(&data->fsl_diu_info[i]); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1601 | if (ret) { |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1602 | dev_err(&pdev->dev, "could not register fb %d\n", i); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1603 | goto error; |
| 1604 | } |
| 1605 | } |
| 1606 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1607 | if (request_irq_local(data)) { |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1608 | dev_err(&pdev->dev, "could not claim irq\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1609 | goto error; |
| 1610 | } |
| 1611 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1612 | sysfs_attr_init(&data->dev_attr.attr); |
| 1613 | data->dev_attr.attr.name = "monitor"; |
| 1614 | data->dev_attr.attr.mode = S_IRUGO|S_IWUSR; |
| 1615 | data->dev_attr.show = show_monitor; |
| 1616 | data->dev_attr.store = store_monitor; |
| 1617 | ret = device_create_file(&pdev->dev, &data->dev_attr); |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1618 | if (ret) { |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1619 | dev_err(&pdev->dev, "could not create sysfs file %s\n", |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1620 | data->dev_attr.attr.name); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1621 | } |
| 1622 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1623 | dev_set_drvdata(&pdev->dev, data); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1624 | return 0; |
| 1625 | |
| 1626 | error: |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1627 | for (i = 0; i < NUM_AOIS; i++) |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1628 | uninstall_fb(&data->fsl_diu_info[i]); |
Timur Tabi | 3f78bbd | 2011-09-15 16:44:56 -0500 | [diff] [blame] | 1629 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1630 | iounmap(data->diu_reg); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1631 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1632 | dma_free_coherent(&pdev->dev, sizeof(struct fsl_diu_data), data, |
| 1633 | data->dma_addr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1634 | |
| 1635 | return ret; |
| 1636 | } |
| 1637 | |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1638 | static int fsl_diu_remove(struct platform_device *pdev) |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1639 | { |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1640 | struct fsl_diu_data *data; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1641 | int i; |
| 1642 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1643 | data = dev_get_drvdata(&pdev->dev); |
| 1644 | disable_lcdc(&data->fsl_diu_info[0]); |
| 1645 | free_irq_local(data); |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1646 | |
| 1647 | for (i = 0; i < NUM_AOIS; i++) |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1648 | uninstall_fb(&data->fsl_diu_info[i]); |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1649 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1650 | iounmap(data->diu_reg); |
Timur Tabi | ddd3d90 | 2011-12-02 17:03:27 -0600 | [diff] [blame] | 1651 | |
Timur Tabi | b779505 | 2011-12-08 17:27:31 -0600 | [diff] [blame] | 1652 | dma_free_coherent(&pdev->dev, sizeof(struct fsl_diu_data), data, |
| 1653 | data->dma_addr); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1654 | |
| 1655 | return 0; |
| 1656 | } |
| 1657 | |
| 1658 | #ifndef MODULE |
| 1659 | static int __init fsl_diu_setup(char *options) |
| 1660 | { |
| 1661 | char *opt; |
| 1662 | unsigned long val; |
| 1663 | |
| 1664 | if (!options || !*options) |
| 1665 | return 0; |
| 1666 | |
| 1667 | while ((opt = strsep(&options, ",")) != NULL) { |
| 1668 | if (!*opt) |
| 1669 | continue; |
| 1670 | if (!strncmp(opt, "monitor=", 8)) { |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 1671 | monitor_port = fsl_diu_name_to_port(opt + 8); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1672 | } else if (!strncmp(opt, "bpp=", 4)) { |
| 1673 | if (!strict_strtoul(opt + 4, 10, &val)) |
| 1674 | default_bpp = val; |
| 1675 | } else |
| 1676 | fb_mode = opt; |
| 1677 | } |
| 1678 | |
| 1679 | return 0; |
| 1680 | } |
| 1681 | #endif |
| 1682 | |
| 1683 | static struct of_device_id fsl_diu_match[] = { |
Anatolij Gustschin | d24720a | 2010-02-17 07:33:22 -0700 | [diff] [blame] | 1684 | #ifdef CONFIG_PPC_MPC512x |
| 1685 | { |
| 1686 | .compatible = "fsl,mpc5121-diu", |
| 1687 | }, |
| 1688 | #endif |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1689 | { |
| 1690 | .compatible = "fsl,diu", |
| 1691 | }, |
| 1692 | {} |
| 1693 | }; |
| 1694 | MODULE_DEVICE_TABLE(of, fsl_diu_match); |
| 1695 | |
Grant Likely | 28541d0 | 2011-02-22 21:07:43 -0700 | [diff] [blame] | 1696 | static struct platform_driver fsl_diu_driver = { |
Grant Likely | 4018294 | 2010-04-13 16:13:02 -0700 | [diff] [blame] | 1697 | .driver = { |
Timur Tabi | f8c6bf6 | 2011-09-15 16:44:53 -0500 | [diff] [blame] | 1698 | .name = "fsl-diu-fb", |
Grant Likely | 4018294 | 2010-04-13 16:13:02 -0700 | [diff] [blame] | 1699 | .owner = THIS_MODULE, |
| 1700 | .of_match_table = fsl_diu_match, |
| 1701 | }, |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1702 | .probe = fsl_diu_probe, |
| 1703 | .remove = fsl_diu_remove, |
| 1704 | .suspend = fsl_diu_suspend, |
| 1705 | .resume = fsl_diu_resume, |
| 1706 | }; |
| 1707 | |
| 1708 | static int __init fsl_diu_init(void) |
| 1709 | { |
| 1710 | #ifdef CONFIG_NOT_COHERENT_CACHE |
| 1711 | struct device_node *np; |
| 1712 | const u32 *prop; |
| 1713 | #endif |
| 1714 | int ret; |
| 1715 | #ifndef MODULE |
| 1716 | char *option; |
| 1717 | |
| 1718 | /* |
| 1719 | * For kernel boot options (in 'video=xxxfb:<options>' format) |
| 1720 | */ |
| 1721 | if (fb_get_options("fslfb", &option)) |
| 1722 | return -ENODEV; |
| 1723 | fsl_diu_setup(option); |
Timur Tabi | 7653aaa | 2011-07-09 15:38:14 -0500 | [diff] [blame] | 1724 | #else |
| 1725 | monitor_port = fsl_diu_name_to_port(monitor_string); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1726 | #endif |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1727 | pr_info("Freescale Display Interface Unit (DIU) framebuffer driver\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1728 | |
| 1729 | #ifdef CONFIG_NOT_COHERENT_CACHE |
| 1730 | np = of_find_node_by_type(NULL, "cpu"); |
| 1731 | if (!np) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1732 | pr_err("fsl-diu-fb: can't find 'cpu' device node\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1733 | return -ENODEV; |
| 1734 | } |
| 1735 | |
| 1736 | prop = of_get_property(np, "d-cache-size", NULL); |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1737 | if (prop == NULL) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1738 | pr_err("fsl-diu-fb: missing 'd-cache-size' property' " |
| 1739 | "in 'cpu' node\n"); |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1740 | of_node_put(np); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1741 | return -ENODEV; |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1742 | } |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1743 | |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 1744 | /* |
| 1745 | * Freescale PLRU requires 13/8 times the cache size to do a proper |
| 1746 | * displacement flush |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1747 | */ |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1748 | coherence_data_size = be32_to_cpup(prop) * 13; |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1749 | coherence_data_size /= 8; |
| 1750 | |
| 1751 | prop = of_get_property(np, "d-cache-line-size", NULL); |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1752 | if (prop == NULL) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1753 | pr_err("fsl-diu-fb: missing 'd-cache-line-size' property' " |
| 1754 | "in 'cpu' node\n"); |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1755 | of_node_put(np); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1756 | return -ENODEV; |
Julia Lawall | 5394ba0 | 2008-08-05 13:01:28 -0700 | [diff] [blame] | 1757 | } |
Timur Tabi | 9e52ba6 | 2011-09-15 16:44:50 -0500 | [diff] [blame] | 1758 | d_cache_line_size = be32_to_cpup(prop); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1759 | |
| 1760 | of_node_put(np); |
| 1761 | coherence_data = vmalloc(coherence_data_size); |
| 1762 | if (!coherence_data) |
| 1763 | return -ENOMEM; |
| 1764 | #endif |
Timur Tabi | 4a85dc8b | 2011-09-15 16:44:46 -0500 | [diff] [blame] | 1765 | |
Grant Likely | 28541d0 | 2011-02-22 21:07:43 -0700 | [diff] [blame] | 1766 | ret = platform_driver_register(&fsl_diu_driver); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1767 | if (ret) { |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1768 | pr_err("fsl-diu-fb: failed to register platform driver\n"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1769 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
| 1770 | vfree(coherence_data); |
| 1771 | #endif |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1772 | } |
| 1773 | return ret; |
| 1774 | } |
| 1775 | |
| 1776 | static void __exit fsl_diu_exit(void) |
| 1777 | { |
Grant Likely | 28541d0 | 2011-02-22 21:07:43 -0700 | [diff] [blame] | 1778 | platform_driver_unregister(&fsl_diu_driver); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1779 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
| 1780 | vfree(coherence_data); |
| 1781 | #endif |
| 1782 | } |
| 1783 | |
| 1784 | module_init(fsl_diu_init); |
| 1785 | module_exit(fsl_diu_exit); |
| 1786 | |
| 1787 | MODULE_AUTHOR("York Sun <yorksun@freescale.com>"); |
| 1788 | MODULE_DESCRIPTION("Freescale DIU framebuffer driver"); |
| 1789 | MODULE_LICENSE("GPL"); |
| 1790 | |
| 1791 | module_param_named(mode, fb_mode, charp, 0); |
| 1792 | MODULE_PARM_DESC(mode, |
| 1793 | "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" "); |
| 1794 | module_param_named(bpp, default_bpp, ulong, 0); |
Timur Tabi | 154152a | 2011-09-15 16:44:47 -0500 | [diff] [blame] | 1795 | 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] | 1796 | module_param_named(monitor, monitor_string, charp, 0); |
| 1797 | MODULE_PARM_DESC(monitor, "Specify the monitor port " |
| 1798 | "(\"dvi\", \"lvds\", or \"dlvds\") if supported by the platform"); |
York Sun | 9b53a9e | 2008-04-28 02:15:34 -0700 | [diff] [blame] | 1799 | |