Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 |
| 3 | * Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de> |
| 4 | * |
| 5 | * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/module.h> |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/platform_device.h> |
| 15 | #include <linux/sched.h> |
| 16 | #include <linux/errno.h> |
| 17 | #include <linux/string.h> |
| 18 | #include <linux/interrupt.h> |
| 19 | #include <linux/slab.h> |
| 20 | #include <linux/fb.h> |
| 21 | #include <linux/delay.h> |
| 22 | #include <linux/init.h> |
| 23 | #include <linux/ioport.h> |
| 24 | #include <linux/dma-mapping.h> |
| 25 | #include <linux/dmaengine.h> |
| 26 | #include <linux/console.h> |
| 27 | #include <linux/clk.h> |
| 28 | #include <linux/mutex.h> |
| 29 | |
Sascha Hauer | 1b346af | 2010-08-16 08:03:04 +0200 | [diff] [blame] | 30 | #include <mach/dma.h> |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 31 | #include <mach/hardware.h> |
| 32 | #include <mach/ipu.h> |
| 33 | #include <mach/mx3fb.h> |
| 34 | |
| 35 | #include <asm/io.h> |
| 36 | #include <asm/uaccess.h> |
| 37 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 38 | #define MX3FB_NAME "mx3_sdc_fb" |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 39 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 40 | #define MX3FB_REG_OFFSET 0xB4 |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 41 | |
| 42 | /* SDC Registers */ |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 43 | #define SDC_COM_CONF (0xB4 - MX3FB_REG_OFFSET) |
| 44 | #define SDC_GW_CTRL (0xB8 - MX3FB_REG_OFFSET) |
| 45 | #define SDC_FG_POS (0xBC - MX3FB_REG_OFFSET) |
| 46 | #define SDC_BG_POS (0xC0 - MX3FB_REG_OFFSET) |
| 47 | #define SDC_CUR_POS (0xC4 - MX3FB_REG_OFFSET) |
| 48 | #define SDC_PWM_CTRL (0xC8 - MX3FB_REG_OFFSET) |
| 49 | #define SDC_CUR_MAP (0xCC - MX3FB_REG_OFFSET) |
| 50 | #define SDC_HOR_CONF (0xD0 - MX3FB_REG_OFFSET) |
| 51 | #define SDC_VER_CONF (0xD4 - MX3FB_REG_OFFSET) |
| 52 | #define SDC_SHARP_CONF_1 (0xD8 - MX3FB_REG_OFFSET) |
| 53 | #define SDC_SHARP_CONF_2 (0xDC - MX3FB_REG_OFFSET) |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 54 | |
| 55 | /* Register bits */ |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 56 | #define SDC_COM_TFT_COLOR 0x00000001UL |
| 57 | #define SDC_COM_FG_EN 0x00000010UL |
| 58 | #define SDC_COM_GWSEL 0x00000020UL |
| 59 | #define SDC_COM_GLB_A 0x00000040UL |
| 60 | #define SDC_COM_KEY_COLOR_G 0x00000080UL |
| 61 | #define SDC_COM_BG_EN 0x00000200UL |
| 62 | #define SDC_COM_SHARP 0x00001000UL |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 63 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 64 | #define SDC_V_SYNC_WIDTH_L 0x00000001UL |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 65 | |
| 66 | /* Display Interface registers */ |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 67 | #define DI_DISP_IF_CONF (0x0124 - MX3FB_REG_OFFSET) |
| 68 | #define DI_DISP_SIG_POL (0x0128 - MX3FB_REG_OFFSET) |
| 69 | #define DI_SER_DISP1_CONF (0x012C - MX3FB_REG_OFFSET) |
| 70 | #define DI_SER_DISP2_CONF (0x0130 - MX3FB_REG_OFFSET) |
| 71 | #define DI_HSP_CLK_PER (0x0134 - MX3FB_REG_OFFSET) |
| 72 | #define DI_DISP0_TIME_CONF_1 (0x0138 - MX3FB_REG_OFFSET) |
| 73 | #define DI_DISP0_TIME_CONF_2 (0x013C - MX3FB_REG_OFFSET) |
| 74 | #define DI_DISP0_TIME_CONF_3 (0x0140 - MX3FB_REG_OFFSET) |
| 75 | #define DI_DISP1_TIME_CONF_1 (0x0144 - MX3FB_REG_OFFSET) |
| 76 | #define DI_DISP1_TIME_CONF_2 (0x0148 - MX3FB_REG_OFFSET) |
| 77 | #define DI_DISP1_TIME_CONF_3 (0x014C - MX3FB_REG_OFFSET) |
| 78 | #define DI_DISP2_TIME_CONF_1 (0x0150 - MX3FB_REG_OFFSET) |
| 79 | #define DI_DISP2_TIME_CONF_2 (0x0154 - MX3FB_REG_OFFSET) |
| 80 | #define DI_DISP2_TIME_CONF_3 (0x0158 - MX3FB_REG_OFFSET) |
| 81 | #define DI_DISP3_TIME_CONF (0x015C - MX3FB_REG_OFFSET) |
| 82 | #define DI_DISP0_DB0_MAP (0x0160 - MX3FB_REG_OFFSET) |
| 83 | #define DI_DISP0_DB1_MAP (0x0164 - MX3FB_REG_OFFSET) |
| 84 | #define DI_DISP0_DB2_MAP (0x0168 - MX3FB_REG_OFFSET) |
| 85 | #define DI_DISP0_CB0_MAP (0x016C - MX3FB_REG_OFFSET) |
| 86 | #define DI_DISP0_CB1_MAP (0x0170 - MX3FB_REG_OFFSET) |
| 87 | #define DI_DISP0_CB2_MAP (0x0174 - MX3FB_REG_OFFSET) |
| 88 | #define DI_DISP1_DB0_MAP (0x0178 - MX3FB_REG_OFFSET) |
| 89 | #define DI_DISP1_DB1_MAP (0x017C - MX3FB_REG_OFFSET) |
| 90 | #define DI_DISP1_DB2_MAP (0x0180 - MX3FB_REG_OFFSET) |
| 91 | #define DI_DISP1_CB0_MAP (0x0184 - MX3FB_REG_OFFSET) |
| 92 | #define DI_DISP1_CB1_MAP (0x0188 - MX3FB_REG_OFFSET) |
| 93 | #define DI_DISP1_CB2_MAP (0x018C - MX3FB_REG_OFFSET) |
| 94 | #define DI_DISP2_DB0_MAP (0x0190 - MX3FB_REG_OFFSET) |
| 95 | #define DI_DISP2_DB1_MAP (0x0194 - MX3FB_REG_OFFSET) |
| 96 | #define DI_DISP2_DB2_MAP (0x0198 - MX3FB_REG_OFFSET) |
| 97 | #define DI_DISP2_CB0_MAP (0x019C - MX3FB_REG_OFFSET) |
| 98 | #define DI_DISP2_CB1_MAP (0x01A0 - MX3FB_REG_OFFSET) |
| 99 | #define DI_DISP2_CB2_MAP (0x01A4 - MX3FB_REG_OFFSET) |
| 100 | #define DI_DISP3_B0_MAP (0x01A8 - MX3FB_REG_OFFSET) |
| 101 | #define DI_DISP3_B1_MAP (0x01AC - MX3FB_REG_OFFSET) |
| 102 | #define DI_DISP3_B2_MAP (0x01B0 - MX3FB_REG_OFFSET) |
| 103 | #define DI_DISP_ACC_CC (0x01B4 - MX3FB_REG_OFFSET) |
| 104 | #define DI_DISP_LLA_CONF (0x01B8 - MX3FB_REG_OFFSET) |
| 105 | #define DI_DISP_LLA_DATA (0x01BC - MX3FB_REG_OFFSET) |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 106 | |
| 107 | /* DI_DISP_SIG_POL bits */ |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 108 | #define DI_D3_VSYNC_POL_SHIFT 28 |
| 109 | #define DI_D3_HSYNC_POL_SHIFT 27 |
| 110 | #define DI_D3_DRDY_SHARP_POL_SHIFT 26 |
| 111 | #define DI_D3_CLK_POL_SHIFT 25 |
| 112 | #define DI_D3_DATA_POL_SHIFT 24 |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 113 | |
| 114 | /* DI_DISP_IF_CONF bits */ |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 115 | #define DI_D3_CLK_IDLE_SHIFT 26 |
| 116 | #define DI_D3_CLK_SEL_SHIFT 25 |
| 117 | #define DI_D3_DATAMSK_SHIFT 24 |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 118 | |
| 119 | enum ipu_panel { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 120 | IPU_PANEL_SHARP_TFT, |
| 121 | IPU_PANEL_TFT, |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 122 | }; |
| 123 | |
| 124 | struct ipu_di_signal_cfg { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 125 | unsigned datamask_en:1; |
| 126 | unsigned clksel_en:1; |
| 127 | unsigned clkidle_en:1; |
| 128 | unsigned data_pol:1; /* true = inverted */ |
| 129 | unsigned clk_pol:1; /* true = rising edge */ |
| 130 | unsigned enable_pol:1; |
| 131 | unsigned Hsync_pol:1; /* true = active high */ |
| 132 | unsigned Vsync_pol:1; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 133 | }; |
| 134 | |
| 135 | static const struct fb_videomode mx3fb_modedb[] = { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 136 | { |
| 137 | /* 240x320 @ 60 Hz */ |
| 138 | .name = "Sharp-QVGA", |
| 139 | .refresh = 60, |
| 140 | .xres = 240, |
| 141 | .yres = 320, |
| 142 | .pixclock = 185925, |
| 143 | .left_margin = 9, |
| 144 | .right_margin = 16, |
| 145 | .upper_margin = 7, |
| 146 | .lower_margin = 9, |
| 147 | .hsync_len = 1, |
| 148 | .vsync_len = 1, |
| 149 | .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_SHARP_MODE | |
| 150 | FB_SYNC_CLK_INVERT | FB_SYNC_DATA_INVERT | |
| 151 | FB_SYNC_CLK_IDLE_EN, |
| 152 | .vmode = FB_VMODE_NONINTERLACED, |
| 153 | .flag = 0, |
| 154 | }, { |
| 155 | /* 240x33 @ 60 Hz */ |
| 156 | .name = "Sharp-CLI", |
| 157 | .refresh = 60, |
| 158 | .xres = 240, |
| 159 | .yres = 33, |
| 160 | .pixclock = 185925, |
| 161 | .left_margin = 9, |
| 162 | .right_margin = 16, |
| 163 | .upper_margin = 7, |
| 164 | .lower_margin = 9 + 287, |
| 165 | .hsync_len = 1, |
| 166 | .vsync_len = 1, |
| 167 | .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_SHARP_MODE | |
| 168 | FB_SYNC_CLK_INVERT | FB_SYNC_DATA_INVERT | |
| 169 | FB_SYNC_CLK_IDLE_EN, |
| 170 | .vmode = FB_VMODE_NONINTERLACED, |
| 171 | .flag = 0, |
| 172 | }, { |
| 173 | /* 640x480 @ 60 Hz */ |
| 174 | .name = "NEC-VGA", |
| 175 | .refresh = 60, |
| 176 | .xres = 640, |
| 177 | .yres = 480, |
| 178 | .pixclock = 38255, |
| 179 | .left_margin = 144, |
| 180 | .right_margin = 0, |
| 181 | .upper_margin = 34, |
| 182 | .lower_margin = 40, |
| 183 | .hsync_len = 1, |
| 184 | .vsync_len = 1, |
| 185 | .sync = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH, |
| 186 | .vmode = FB_VMODE_NONINTERLACED, |
| 187 | .flag = 0, |
| 188 | }, { |
| 189 | /* NTSC TV output */ |
| 190 | .name = "TV-NTSC", |
| 191 | .refresh = 60, |
| 192 | .xres = 640, |
| 193 | .yres = 480, |
| 194 | .pixclock = 37538, |
| 195 | .left_margin = 38, |
| 196 | .right_margin = 858 - 640 - 38 - 3, |
| 197 | .upper_margin = 36, |
| 198 | .lower_margin = 518 - 480 - 36 - 1, |
| 199 | .hsync_len = 3, |
| 200 | .vsync_len = 1, |
| 201 | .sync = 0, |
| 202 | .vmode = FB_VMODE_NONINTERLACED, |
| 203 | .flag = 0, |
| 204 | }, { |
| 205 | /* PAL TV output */ |
| 206 | .name = "TV-PAL", |
| 207 | .refresh = 50, |
| 208 | .xres = 640, |
| 209 | .yres = 480, |
| 210 | .pixclock = 37538, |
| 211 | .left_margin = 38, |
| 212 | .right_margin = 960 - 640 - 38 - 32, |
| 213 | .upper_margin = 32, |
| 214 | .lower_margin = 555 - 480 - 32 - 3, |
| 215 | .hsync_len = 32, |
| 216 | .vsync_len = 3, |
| 217 | .sync = 0, |
| 218 | .vmode = FB_VMODE_NONINTERLACED, |
| 219 | .flag = 0, |
| 220 | }, { |
| 221 | /* TV output VGA mode, 640x480 @ 65 Hz */ |
| 222 | .name = "TV-VGA", |
| 223 | .refresh = 60, |
| 224 | .xres = 640, |
| 225 | .yres = 480, |
| 226 | .pixclock = 40574, |
| 227 | .left_margin = 35, |
| 228 | .right_margin = 45, |
| 229 | .upper_margin = 9, |
| 230 | .lower_margin = 1, |
| 231 | .hsync_len = 46, |
| 232 | .vsync_len = 5, |
| 233 | .sync = 0, |
| 234 | .vmode = FB_VMODE_NONINTERLACED, |
| 235 | .flag = 0, |
| 236 | }, |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 237 | }; |
| 238 | |
| 239 | struct mx3fb_data { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 240 | struct fb_info *fbi; |
| 241 | int backlight_level; |
| 242 | void __iomem *reg_base; |
| 243 | spinlock_t lock; |
| 244 | struct device *dev; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 245 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 246 | uint32_t h_start_width; |
| 247 | uint32_t v_start_width; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 248 | }; |
| 249 | |
| 250 | struct dma_chan_request { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 251 | struct mx3fb_data *mx3fb; |
| 252 | enum ipu_channel id; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 253 | }; |
| 254 | |
| 255 | /* MX3 specific framebuffer information. */ |
| 256 | struct mx3fb_info { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 257 | int blank; |
| 258 | enum ipu_channel ipu_ch; |
| 259 | uint32_t cur_ipu_buf; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 260 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 261 | u32 pseudo_palette[16]; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 262 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 263 | struct completion flip_cmpl; |
| 264 | struct mutex mutex; /* Protects fb-ops */ |
| 265 | struct mx3fb_data *mx3fb; |
| 266 | struct idmac_channel *idmac_channel; |
| 267 | struct dma_async_tx_descriptor *txd; |
| 268 | dma_cookie_t cookie; |
| 269 | struct scatterlist sg[2]; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 270 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 271 | u32 sync; /* preserve var->sync flags */ |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 272 | }; |
| 273 | |
| 274 | static void mx3fb_dma_done(void *); |
| 275 | |
| 276 | /* Used fb-mode and bpp. Can be set on kernel command line, therefore file-static. */ |
| 277 | static const char *fb_mode; |
| 278 | static unsigned long default_bpp = 16; |
| 279 | |
| 280 | static u32 mx3fb_read_reg(struct mx3fb_data *mx3fb, unsigned long reg) |
| 281 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 282 | return __raw_readl(mx3fb->reg_base + reg); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 283 | } |
| 284 | |
| 285 | static void mx3fb_write_reg(struct mx3fb_data *mx3fb, u32 value, unsigned long reg) |
| 286 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 287 | __raw_writel(value, mx3fb->reg_base + reg); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 288 | } |
| 289 | |
| 290 | static const uint32_t di_mappings[] = { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 291 | 0x1600AAAA, 0x00E05555, 0x00070000, 3, /* RGB888 */ |
| 292 | 0x0005000F, 0x000B000F, 0x0011000F, 1, /* RGB666 */ |
| 293 | 0x0011000F, 0x000B000F, 0x0005000F, 1, /* BGR666 */ |
| 294 | 0x0004003F, 0x000A000F, 0x000F003F, 1 /* RGB565 */ |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 295 | }; |
| 296 | |
| 297 | static void sdc_fb_init(struct mx3fb_info *fbi) |
| 298 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 299 | struct mx3fb_data *mx3fb = fbi->mx3fb; |
| 300 | uint32_t reg; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 301 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 302 | reg = mx3fb_read_reg(mx3fb, SDC_COM_CONF); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 303 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 304 | mx3fb_write_reg(mx3fb, reg | SDC_COM_BG_EN, SDC_COM_CONF); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 305 | } |
| 306 | |
| 307 | /* Returns enabled flag before uninit */ |
| 308 | static uint32_t sdc_fb_uninit(struct mx3fb_info *fbi) |
| 309 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 310 | struct mx3fb_data *mx3fb = fbi->mx3fb; |
| 311 | uint32_t reg; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 312 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 313 | reg = mx3fb_read_reg(mx3fb, SDC_COM_CONF); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 314 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 315 | mx3fb_write_reg(mx3fb, reg & ~SDC_COM_BG_EN, SDC_COM_CONF); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 316 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 317 | return reg & SDC_COM_BG_EN; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 318 | } |
| 319 | |
| 320 | static void sdc_enable_channel(struct mx3fb_info *mx3_fbi) |
| 321 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 322 | struct mx3fb_data *mx3fb = mx3_fbi->mx3fb; |
| 323 | struct idmac_channel *ichan = mx3_fbi->idmac_channel; |
| 324 | struct dma_chan *dma_chan = &ichan->dma_chan; |
| 325 | unsigned long flags; |
| 326 | dma_cookie_t cookie; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 327 | |
Alberto Panizzo | b3cb537 | 2010-02-02 13:43:59 -0800 | [diff] [blame] | 328 | if (mx3_fbi->txd) |
| 329 | dev_dbg(mx3fb->dev, "mx3fbi %p, desc %p, sg %p\n", mx3_fbi, |
| 330 | to_tx_desc(mx3_fbi->txd), to_tx_desc(mx3_fbi->txd)->sg); |
| 331 | else |
| 332 | dev_dbg(mx3fb->dev, "mx3fbi %p, txd = NULL\n", mx3_fbi); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 333 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 334 | /* This enables the channel */ |
| 335 | if (mx3_fbi->cookie < 0) { |
| 336 | mx3_fbi->txd = dma_chan->device->device_prep_slave_sg(dma_chan, |
| 337 | &mx3_fbi->sg[0], 1, DMA_TO_DEVICE, DMA_PREP_INTERRUPT); |
| 338 | if (!mx3_fbi->txd) { |
| 339 | dev_err(mx3fb->dev, "Cannot allocate descriptor on %d\n", |
| 340 | dma_chan->chan_id); |
| 341 | return; |
| 342 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 343 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 344 | mx3_fbi->txd->callback_param = mx3_fbi->txd; |
| 345 | mx3_fbi->txd->callback = mx3fb_dma_done; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 346 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 347 | cookie = mx3_fbi->txd->tx_submit(mx3_fbi->txd); |
| 348 | dev_dbg(mx3fb->dev, "%d: Submit %p #%d [%c]\n", __LINE__, |
| 349 | mx3_fbi->txd, cookie, list_empty(&ichan->queue) ? '-' : '+'); |
| 350 | } else { |
| 351 | if (!mx3_fbi->txd || !mx3_fbi->txd->tx_submit) { |
| 352 | dev_err(mx3fb->dev, "Cannot enable channel %d\n", |
| 353 | dma_chan->chan_id); |
| 354 | return; |
| 355 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 356 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 357 | /* Just re-activate the same buffer */ |
| 358 | dma_async_issue_pending(dma_chan); |
| 359 | cookie = mx3_fbi->cookie; |
| 360 | dev_dbg(mx3fb->dev, "%d: Re-submit %p #%d [%c]\n", __LINE__, |
| 361 | mx3_fbi->txd, cookie, list_empty(&ichan->queue) ? '-' : '+'); |
| 362 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 363 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 364 | if (cookie >= 0) { |
| 365 | spin_lock_irqsave(&mx3fb->lock, flags); |
| 366 | sdc_fb_init(mx3_fbi); |
| 367 | mx3_fbi->cookie = cookie; |
| 368 | spin_unlock_irqrestore(&mx3fb->lock, flags); |
| 369 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 370 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 371 | /* |
| 372 | * Attention! Without this msleep the channel keeps generating |
| 373 | * interrupts. Next sdc_set_brightness() is going to be called |
| 374 | * from mx3fb_blank(). |
| 375 | */ |
| 376 | msleep(2); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 377 | } |
| 378 | |
| 379 | static void sdc_disable_channel(struct mx3fb_info *mx3_fbi) |
| 380 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 381 | struct mx3fb_data *mx3fb = mx3_fbi->mx3fb; |
| 382 | uint32_t enabled; |
| 383 | unsigned long flags; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 384 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 385 | spin_lock_irqsave(&mx3fb->lock, flags); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 386 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 387 | enabled = sdc_fb_uninit(mx3_fbi); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 388 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 389 | spin_unlock_irqrestore(&mx3fb->lock, flags); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 390 | |
Linus Walleij | c3635c7 | 2010-03-26 16:44:01 -0700 | [diff] [blame] | 391 | mx3_fbi->txd->chan->device->device_control(mx3_fbi->txd->chan, |
Linus Walleij | 0582763 | 2010-05-17 16:30:42 -0700 | [diff] [blame] | 392 | DMA_TERMINATE_ALL, 0); |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 393 | mx3_fbi->txd = NULL; |
| 394 | mx3_fbi->cookie = -EINVAL; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 395 | } |
| 396 | |
| 397 | /** |
| 398 | * sdc_set_window_pos() - set window position of the respective plane. |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 399 | * @mx3fb: mx3fb context. |
| 400 | * @channel: IPU DMAC channel ID. |
| 401 | * @x_pos: X coordinate relative to the top left corner to place window at. |
| 402 | * @y_pos: Y coordinate relative to the top left corner to place window at. |
| 403 | * @return: 0 on success or negative error code on failure. |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 404 | */ |
| 405 | static int sdc_set_window_pos(struct mx3fb_data *mx3fb, enum ipu_channel channel, |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 406 | int16_t x_pos, int16_t y_pos) |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 407 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 408 | if (channel != IDMAC_SDC_0) |
| 409 | return -EINVAL; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 410 | |
Guennadi Liakhovetski | d88ca815 | 2009-04-06 19:01:05 -0700 | [diff] [blame] | 411 | x_pos += mx3fb->h_start_width; |
| 412 | y_pos += mx3fb->v_start_width; |
| 413 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 414 | mx3fb_write_reg(mx3fb, (x_pos << 16) | y_pos, SDC_BG_POS); |
| 415 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 416 | } |
| 417 | |
| 418 | /** |
| 419 | * sdc_init_panel() - initialize a synchronous LCD panel. |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 420 | * @mx3fb: mx3fb context. |
| 421 | * @panel: panel type. |
| 422 | * @pixel_clk: desired pixel clock frequency in Hz. |
| 423 | * @width: width of panel in pixels. |
| 424 | * @height: height of panel in pixels. |
| 425 | * @pixel_fmt: pixel format of buffer as FOURCC ASCII code. |
| 426 | * @h_start_width: number of pixel clocks between the HSYNC signal pulse |
| 427 | * and the start of valid data. |
| 428 | * @h_sync_width: width of the HSYNC signal in units of pixel clocks. |
| 429 | * @h_end_width: number of pixel clocks between the end of valid data |
| 430 | * and the HSYNC signal for next line. |
| 431 | * @v_start_width: number of lines between the VSYNC signal pulse and the |
| 432 | * start of valid data. |
| 433 | * @v_sync_width: width of the VSYNC signal in units of lines |
| 434 | * @v_end_width: number of lines between the end of valid data and the |
| 435 | * VSYNC signal for next frame. |
| 436 | * @sig: bitfield of signal polarities for LCD interface. |
| 437 | * @return: 0 on success or negative error code on failure. |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 438 | */ |
| 439 | static int sdc_init_panel(struct mx3fb_data *mx3fb, enum ipu_panel panel, |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 440 | uint32_t pixel_clk, |
| 441 | uint16_t width, uint16_t height, |
| 442 | enum pixel_fmt pixel_fmt, |
| 443 | uint16_t h_start_width, uint16_t h_sync_width, |
| 444 | uint16_t h_end_width, uint16_t v_start_width, |
| 445 | uint16_t v_sync_width, uint16_t v_end_width, |
| 446 | struct ipu_di_signal_cfg sig) |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 447 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 448 | unsigned long lock_flags; |
| 449 | uint32_t reg; |
| 450 | uint32_t old_conf; |
| 451 | uint32_t div; |
| 452 | struct clk *ipu_clk; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 453 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 454 | dev_dbg(mx3fb->dev, "panel size = %d x %d", width, height); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 455 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 456 | if (v_sync_width == 0 || h_sync_width == 0) |
| 457 | return -EINVAL; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 458 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 459 | /* Init panel size and blanking periods */ |
| 460 | reg = ((uint32_t) (h_sync_width - 1) << 26) | |
| 461 | ((uint32_t) (width + h_start_width + h_end_width - 1) << 16); |
| 462 | mx3fb_write_reg(mx3fb, reg, SDC_HOR_CONF); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 463 | |
| 464 | #ifdef DEBUG |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 465 | printk(KERN_CONT " hor_conf %x,", reg); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 466 | #endif |
| 467 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 468 | reg = ((uint32_t) (v_sync_width - 1) << 26) | SDC_V_SYNC_WIDTH_L | |
| 469 | ((uint32_t) (height + v_start_width + v_end_width - 1) << 16); |
| 470 | mx3fb_write_reg(mx3fb, reg, SDC_VER_CONF); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 471 | |
| 472 | #ifdef DEBUG |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 473 | printk(KERN_CONT " ver_conf %x\n", reg); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 474 | #endif |
| 475 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 476 | mx3fb->h_start_width = h_start_width; |
| 477 | mx3fb->v_start_width = v_start_width; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 478 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 479 | switch (panel) { |
| 480 | case IPU_PANEL_SHARP_TFT: |
| 481 | mx3fb_write_reg(mx3fb, 0x00FD0102L, SDC_SHARP_CONF_1); |
| 482 | mx3fb_write_reg(mx3fb, 0x00F500F4L, SDC_SHARP_CONF_2); |
| 483 | mx3fb_write_reg(mx3fb, SDC_COM_SHARP | SDC_COM_TFT_COLOR, SDC_COM_CONF); |
| 484 | break; |
| 485 | case IPU_PANEL_TFT: |
| 486 | mx3fb_write_reg(mx3fb, SDC_COM_TFT_COLOR, SDC_COM_CONF); |
| 487 | break; |
| 488 | default: |
| 489 | return -EINVAL; |
| 490 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 491 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 492 | /* Init clocking */ |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 493 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 494 | /* |
| 495 | * Calculate divider: fractional part is 4 bits so simply multiple by |
| 496 | * 2^4 to get fractional part, as long as we stay under ~250MHz and on |
| 497 | * i.MX31 it (HSP_CLK) is <= 178MHz. Currently 128.267MHz |
| 498 | */ |
Russell King | 3879f5d | 2009-03-16 22:28:04 +0000 | [diff] [blame] | 499 | ipu_clk = clk_get(mx3fb->dev, NULL); |
Guennadi Liakhovetski | d88ca815 | 2009-04-06 19:01:05 -0700 | [diff] [blame] | 500 | if (!IS_ERR(ipu_clk)) { |
| 501 | div = clk_get_rate(ipu_clk) * 16 / pixel_clk; |
| 502 | clk_put(ipu_clk); |
| 503 | } else { |
| 504 | div = 0; |
| 505 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 506 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 507 | if (div < 0x40) { /* Divider less than 4 */ |
| 508 | dev_dbg(mx3fb->dev, |
| 509 | "InitPanel() - Pixel clock divider less than 4\n"); |
| 510 | div = 0x40; |
| 511 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 512 | |
Guennadi Liakhovetski | d88ca815 | 2009-04-06 19:01:05 -0700 | [diff] [blame] | 513 | dev_dbg(mx3fb->dev, "pixel clk = %u, divider %u.%u\n", |
| 514 | pixel_clk, div >> 4, (div & 7) * 125); |
| 515 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 516 | spin_lock_irqsave(&mx3fb->lock, lock_flags); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 517 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 518 | /* |
| 519 | * DISP3_IF_CLK_DOWN_WR is half the divider value and 2 fraction bits |
| 520 | * fewer. Subtract 1 extra from DISP3_IF_CLK_DOWN_WR based on timing |
| 521 | * debug. DISP3_IF_CLK_UP_WR is 0 |
| 522 | */ |
| 523 | mx3fb_write_reg(mx3fb, (((div / 8) - 1) << 22) | div, DI_DISP3_TIME_CONF); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 524 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 525 | /* DI settings */ |
| 526 | old_conf = mx3fb_read_reg(mx3fb, DI_DISP_IF_CONF) & 0x78FFFFFF; |
| 527 | old_conf |= sig.datamask_en << DI_D3_DATAMSK_SHIFT | |
Guennadi Liakhovetski | d88ca815 | 2009-04-06 19:01:05 -0700 | [diff] [blame] | 528 | sig.clksel_en << DI_D3_CLK_SEL_SHIFT | |
| 529 | sig.clkidle_en << DI_D3_CLK_IDLE_SHIFT; |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 530 | mx3fb_write_reg(mx3fb, old_conf, DI_DISP_IF_CONF); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 531 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 532 | old_conf = mx3fb_read_reg(mx3fb, DI_DISP_SIG_POL) & 0xE0FFFFFF; |
| 533 | old_conf |= sig.data_pol << DI_D3_DATA_POL_SHIFT | |
Guennadi Liakhovetski | d88ca815 | 2009-04-06 19:01:05 -0700 | [diff] [blame] | 534 | sig.clk_pol << DI_D3_CLK_POL_SHIFT | |
| 535 | sig.enable_pol << DI_D3_DRDY_SHARP_POL_SHIFT | |
| 536 | sig.Hsync_pol << DI_D3_HSYNC_POL_SHIFT | |
| 537 | sig.Vsync_pol << DI_D3_VSYNC_POL_SHIFT; |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 538 | mx3fb_write_reg(mx3fb, old_conf, DI_DISP_SIG_POL); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 539 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 540 | switch (pixel_fmt) { |
| 541 | case IPU_PIX_FMT_RGB24: |
| 542 | mx3fb_write_reg(mx3fb, di_mappings[0], DI_DISP3_B0_MAP); |
| 543 | mx3fb_write_reg(mx3fb, di_mappings[1], DI_DISP3_B1_MAP); |
| 544 | mx3fb_write_reg(mx3fb, di_mappings[2], DI_DISP3_B2_MAP); |
| 545 | mx3fb_write_reg(mx3fb, mx3fb_read_reg(mx3fb, DI_DISP_ACC_CC) | |
| 546 | ((di_mappings[3] - 1) << 12), DI_DISP_ACC_CC); |
| 547 | break; |
| 548 | case IPU_PIX_FMT_RGB666: |
| 549 | mx3fb_write_reg(mx3fb, di_mappings[4], DI_DISP3_B0_MAP); |
| 550 | mx3fb_write_reg(mx3fb, di_mappings[5], DI_DISP3_B1_MAP); |
| 551 | mx3fb_write_reg(mx3fb, di_mappings[6], DI_DISP3_B2_MAP); |
| 552 | mx3fb_write_reg(mx3fb, mx3fb_read_reg(mx3fb, DI_DISP_ACC_CC) | |
| 553 | ((di_mappings[7] - 1) << 12), DI_DISP_ACC_CC); |
| 554 | break; |
| 555 | case IPU_PIX_FMT_BGR666: |
| 556 | mx3fb_write_reg(mx3fb, di_mappings[8], DI_DISP3_B0_MAP); |
| 557 | mx3fb_write_reg(mx3fb, di_mappings[9], DI_DISP3_B1_MAP); |
| 558 | mx3fb_write_reg(mx3fb, di_mappings[10], DI_DISP3_B2_MAP); |
| 559 | mx3fb_write_reg(mx3fb, mx3fb_read_reg(mx3fb, DI_DISP_ACC_CC) | |
| 560 | ((di_mappings[11] - 1) << 12), DI_DISP_ACC_CC); |
| 561 | break; |
| 562 | default: |
| 563 | mx3fb_write_reg(mx3fb, di_mappings[12], DI_DISP3_B0_MAP); |
| 564 | mx3fb_write_reg(mx3fb, di_mappings[13], DI_DISP3_B1_MAP); |
| 565 | mx3fb_write_reg(mx3fb, di_mappings[14], DI_DISP3_B2_MAP); |
| 566 | mx3fb_write_reg(mx3fb, mx3fb_read_reg(mx3fb, DI_DISP_ACC_CC) | |
| 567 | ((di_mappings[15] - 1) << 12), DI_DISP_ACC_CC); |
| 568 | break; |
| 569 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 570 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 571 | spin_unlock_irqrestore(&mx3fb->lock, lock_flags); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 572 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 573 | dev_dbg(mx3fb->dev, "DI_DISP_IF_CONF = 0x%08X\n", |
| 574 | mx3fb_read_reg(mx3fb, DI_DISP_IF_CONF)); |
| 575 | dev_dbg(mx3fb->dev, "DI_DISP_SIG_POL = 0x%08X\n", |
| 576 | mx3fb_read_reg(mx3fb, DI_DISP_SIG_POL)); |
| 577 | dev_dbg(mx3fb->dev, "DI_DISP3_TIME_CONF = 0x%08X\n", |
| 578 | mx3fb_read_reg(mx3fb, DI_DISP3_TIME_CONF)); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 579 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 580 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 581 | } |
| 582 | |
| 583 | /** |
| 584 | * sdc_set_color_key() - set the transparent color key for SDC graphic plane. |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 585 | * @mx3fb: mx3fb context. |
| 586 | * @channel: IPU DMAC channel ID. |
| 587 | * @enable: boolean to enable or disable color keyl. |
| 588 | * @color_key: 24-bit RGB color to use as transparent color key. |
| 589 | * @return: 0 on success or negative error code on failure. |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 590 | */ |
| 591 | static int sdc_set_color_key(struct mx3fb_data *mx3fb, enum ipu_channel channel, |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 592 | bool enable, uint32_t color_key) |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 593 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 594 | uint32_t reg, sdc_conf; |
| 595 | unsigned long lock_flags; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 596 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 597 | spin_lock_irqsave(&mx3fb->lock, lock_flags); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 598 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 599 | sdc_conf = mx3fb_read_reg(mx3fb, SDC_COM_CONF); |
| 600 | if (channel == IDMAC_SDC_0) |
| 601 | sdc_conf &= ~SDC_COM_GWSEL; |
| 602 | else |
| 603 | sdc_conf |= SDC_COM_GWSEL; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 604 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 605 | if (enable) { |
| 606 | reg = mx3fb_read_reg(mx3fb, SDC_GW_CTRL) & 0xFF000000L; |
| 607 | mx3fb_write_reg(mx3fb, reg | (color_key & 0x00FFFFFFL), |
| 608 | SDC_GW_CTRL); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 609 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 610 | sdc_conf |= SDC_COM_KEY_COLOR_G; |
| 611 | } else { |
| 612 | sdc_conf &= ~SDC_COM_KEY_COLOR_G; |
| 613 | } |
| 614 | mx3fb_write_reg(mx3fb, sdc_conf, SDC_COM_CONF); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 615 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 616 | spin_unlock_irqrestore(&mx3fb->lock, lock_flags); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 617 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 618 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 619 | } |
| 620 | |
| 621 | /** |
| 622 | * sdc_set_global_alpha() - set global alpha blending modes. |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 623 | * @mx3fb: mx3fb context. |
| 624 | * @enable: boolean to enable or disable global alpha blending. If disabled, |
| 625 | * per pixel blending is used. |
| 626 | * @alpha: global alpha value. |
| 627 | * @return: 0 on success or negative error code on failure. |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 628 | */ |
| 629 | static int sdc_set_global_alpha(struct mx3fb_data *mx3fb, bool enable, uint8_t alpha) |
| 630 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 631 | uint32_t reg; |
| 632 | unsigned long lock_flags; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 633 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 634 | spin_lock_irqsave(&mx3fb->lock, lock_flags); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 635 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 636 | if (enable) { |
| 637 | reg = mx3fb_read_reg(mx3fb, SDC_GW_CTRL) & 0x00FFFFFFL; |
| 638 | mx3fb_write_reg(mx3fb, reg | ((uint32_t) alpha << 24), SDC_GW_CTRL); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 639 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 640 | reg = mx3fb_read_reg(mx3fb, SDC_COM_CONF); |
| 641 | mx3fb_write_reg(mx3fb, reg | SDC_COM_GLB_A, SDC_COM_CONF); |
| 642 | } else { |
| 643 | reg = mx3fb_read_reg(mx3fb, SDC_COM_CONF); |
| 644 | mx3fb_write_reg(mx3fb, reg & ~SDC_COM_GLB_A, SDC_COM_CONF); |
| 645 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 646 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 647 | spin_unlock_irqrestore(&mx3fb->lock, lock_flags); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 648 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 649 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 650 | } |
| 651 | |
| 652 | static void sdc_set_brightness(struct mx3fb_data *mx3fb, uint8_t value) |
| 653 | { |
Alberto Panizzo | b3cb537 | 2010-02-02 13:43:59 -0800 | [diff] [blame] | 654 | dev_dbg(mx3fb->dev, "%s: value = %d\n", __func__, value); |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 655 | /* This might be board-specific */ |
| 656 | mx3fb_write_reg(mx3fb, 0x03000000UL | value << 16, SDC_PWM_CTRL); |
| 657 | return; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 658 | } |
| 659 | |
| 660 | static uint32_t bpp_to_pixfmt(int bpp) |
| 661 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 662 | uint32_t pixfmt = 0; |
| 663 | switch (bpp) { |
| 664 | case 24: |
| 665 | pixfmt = IPU_PIX_FMT_BGR24; |
| 666 | break; |
| 667 | case 32: |
| 668 | pixfmt = IPU_PIX_FMT_BGR32; |
| 669 | break; |
| 670 | case 16: |
| 671 | pixfmt = IPU_PIX_FMT_RGB565; |
| 672 | break; |
| 673 | } |
| 674 | return pixfmt; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 675 | } |
| 676 | |
| 677 | static int mx3fb_blank(int blank, struct fb_info *fbi); |
Guennadi Liakhovetski | 20de03d | 2009-08-06 15:07:40 -0700 | [diff] [blame] | 678 | static int mx3fb_map_video_memory(struct fb_info *fbi, unsigned int mem_len, |
| 679 | bool lock); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 680 | static int mx3fb_unmap_video_memory(struct fb_info *fbi); |
| 681 | |
| 682 | /** |
| 683 | * mx3fb_set_fix() - set fixed framebuffer parameters from variable settings. |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 684 | * @info: framebuffer information pointer |
| 685 | * @return: 0 on success or negative error code on failure. |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 686 | */ |
| 687 | static int mx3fb_set_fix(struct fb_info *fbi) |
| 688 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 689 | struct fb_fix_screeninfo *fix = &fbi->fix; |
| 690 | struct fb_var_screeninfo *var = &fbi->var; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 691 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 692 | strncpy(fix->id, "DISP3 BG", 8); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 693 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 694 | fix->line_length = var->xres_virtual * var->bits_per_pixel / 8; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 695 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 696 | fix->type = FB_TYPE_PACKED_PIXELS; |
| 697 | fix->accel = FB_ACCEL_NONE; |
| 698 | fix->visual = FB_VISUAL_TRUECOLOR; |
| 699 | fix->xpanstep = 1; |
| 700 | fix->ypanstep = 1; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 701 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 702 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 703 | } |
| 704 | |
| 705 | static void mx3fb_dma_done(void *arg) |
| 706 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 707 | struct idmac_tx_desc *tx_desc = to_tx_desc(arg); |
| 708 | struct dma_chan *chan = tx_desc->txd.chan; |
| 709 | struct idmac_channel *ichannel = to_idmac_chan(chan); |
| 710 | struct mx3fb_data *mx3fb = ichannel->client; |
| 711 | struct mx3fb_info *mx3_fbi = mx3fb->fbi->par; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 712 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 713 | dev_dbg(mx3fb->dev, "irq %d callback\n", ichannel->eof_irq); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 714 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 715 | /* We only need one interrupt, it will be re-enabled as needed */ |
Guennadi Liakhovetski | c8a4fb4 | 2009-05-12 21:41:03 +0200 | [diff] [blame] | 716 | disable_irq_nosync(ichannel->eof_irq); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 717 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 718 | complete(&mx3_fbi->flip_cmpl); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 719 | } |
| 720 | |
Guennadi Liakhovetski | 20de03d | 2009-08-06 15:07:40 -0700 | [diff] [blame] | 721 | static int __set_par(struct fb_info *fbi, bool lock) |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 722 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 723 | u32 mem_len; |
| 724 | struct ipu_di_signal_cfg sig_cfg; |
| 725 | enum ipu_panel mode = IPU_PANEL_TFT; |
| 726 | struct mx3fb_info *mx3_fbi = fbi->par; |
| 727 | struct mx3fb_data *mx3fb = mx3_fbi->mx3fb; |
| 728 | struct idmac_channel *ichan = mx3_fbi->idmac_channel; |
| 729 | struct idmac_video_param *video = &ichan->params.video; |
| 730 | struct scatterlist *sg = mx3_fbi->sg; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 731 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 732 | /* Total cleanup */ |
| 733 | if (mx3_fbi->txd) |
| 734 | sdc_disable_channel(mx3_fbi); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 735 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 736 | mx3fb_set_fix(fbi); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 737 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 738 | mem_len = fbi->var.yres_virtual * fbi->fix.line_length; |
| 739 | if (mem_len > fbi->fix.smem_len) { |
| 740 | if (fbi->fix.smem_start) |
| 741 | mx3fb_unmap_video_memory(fbi); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 742 | |
Guennadi Liakhovetski | 20de03d | 2009-08-06 15:07:40 -0700 | [diff] [blame] | 743 | if (mx3fb_map_video_memory(fbi, mem_len, lock) < 0) |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 744 | return -ENOMEM; |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 745 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 746 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 747 | sg_init_table(&sg[0], 1); |
| 748 | sg_init_table(&sg[1], 1); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 749 | |
Guennadi Liakhovetski | d88ca815 | 2009-04-06 19:01:05 -0700 | [diff] [blame] | 750 | sg_dma_address(&sg[0]) = fbi->fix.smem_start; |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 751 | sg_set_page(&sg[0], virt_to_page(fbi->screen_base), |
| 752 | fbi->fix.smem_len, |
| 753 | offset_in_page(fbi->screen_base)); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 754 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 755 | if (mx3_fbi->ipu_ch == IDMAC_SDC_0) { |
| 756 | memset(&sig_cfg, 0, sizeof(sig_cfg)); |
| 757 | if (fbi->var.sync & FB_SYNC_HOR_HIGH_ACT) |
| 758 | sig_cfg.Hsync_pol = true; |
| 759 | if (fbi->var.sync & FB_SYNC_VERT_HIGH_ACT) |
| 760 | sig_cfg.Vsync_pol = true; |
| 761 | if (fbi->var.sync & FB_SYNC_CLK_INVERT) |
| 762 | sig_cfg.clk_pol = true; |
| 763 | if (fbi->var.sync & FB_SYNC_DATA_INVERT) |
| 764 | sig_cfg.data_pol = true; |
| 765 | if (fbi->var.sync & FB_SYNC_OE_ACT_HIGH) |
| 766 | sig_cfg.enable_pol = true; |
| 767 | if (fbi->var.sync & FB_SYNC_CLK_IDLE_EN) |
| 768 | sig_cfg.clkidle_en = true; |
| 769 | if (fbi->var.sync & FB_SYNC_CLK_SEL_EN) |
| 770 | sig_cfg.clksel_en = true; |
| 771 | if (fbi->var.sync & FB_SYNC_SHARP_MODE) |
| 772 | mode = IPU_PANEL_SHARP_TFT; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 773 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 774 | dev_dbg(fbi->device, "pixclock = %ul Hz\n", |
| 775 | (u32) (PICOS2KHZ(fbi->var.pixclock) * 1000UL)); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 776 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 777 | if (sdc_init_panel(mx3fb, mode, |
| 778 | (PICOS2KHZ(fbi->var.pixclock)) * 1000UL, |
| 779 | fbi->var.xres, fbi->var.yres, |
| 780 | (fbi->var.sync & FB_SYNC_SWAP_RGB) ? |
| 781 | IPU_PIX_FMT_BGR666 : IPU_PIX_FMT_RGB666, |
| 782 | fbi->var.left_margin, |
| 783 | fbi->var.hsync_len, |
| 784 | fbi->var.right_margin + |
| 785 | fbi->var.hsync_len, |
| 786 | fbi->var.upper_margin, |
| 787 | fbi->var.vsync_len, |
| 788 | fbi->var.lower_margin + |
| 789 | fbi->var.vsync_len, sig_cfg) != 0) { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 790 | dev_err(fbi->device, |
| 791 | "mx3fb: Error initializing panel.\n"); |
| 792 | return -EINVAL; |
| 793 | } |
| 794 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 795 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 796 | sdc_set_window_pos(mx3fb, mx3_fbi->ipu_ch, 0, 0); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 797 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 798 | mx3_fbi->cur_ipu_buf = 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 799 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 800 | video->out_pixel_fmt = bpp_to_pixfmt(fbi->var.bits_per_pixel); |
| 801 | video->out_width = fbi->var.xres; |
| 802 | video->out_height = fbi->var.yres; |
| 803 | video->out_stride = fbi->var.xres_virtual; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 804 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 805 | if (mx3_fbi->blank == FB_BLANK_UNBLANK) |
| 806 | sdc_enable_channel(mx3_fbi); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 807 | |
Guennadi Liakhovetski | 20de03d | 2009-08-06 15:07:40 -0700 | [diff] [blame] | 808 | return 0; |
| 809 | } |
| 810 | |
| 811 | /** |
| 812 | * mx3fb_set_par() - set framebuffer parameters and change the operating mode. |
| 813 | * @fbi: framebuffer information pointer. |
| 814 | * @return: 0 on success or negative error code on failure. |
| 815 | */ |
| 816 | static int mx3fb_set_par(struct fb_info *fbi) |
| 817 | { |
| 818 | struct mx3fb_info *mx3_fbi = fbi->par; |
| 819 | struct mx3fb_data *mx3fb = mx3_fbi->mx3fb; |
| 820 | struct idmac_channel *ichan = mx3_fbi->idmac_channel; |
| 821 | int ret; |
| 822 | |
| 823 | dev_dbg(mx3fb->dev, "%s [%c]\n", __func__, list_empty(&ichan->queue) ? '-' : '+'); |
| 824 | |
| 825 | mutex_lock(&mx3_fbi->mutex); |
| 826 | |
| 827 | ret = __set_par(fbi, true); |
| 828 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 829 | mutex_unlock(&mx3_fbi->mutex); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 830 | |
Guennadi Liakhovetski | 20de03d | 2009-08-06 15:07:40 -0700 | [diff] [blame] | 831 | return ret; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 832 | } |
| 833 | |
| 834 | /** |
| 835 | * mx3fb_check_var() - check and adjust framebuffer variable parameters. |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 836 | * @var: framebuffer variable parameters |
| 837 | * @fbi: framebuffer information pointer |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 838 | */ |
| 839 | static int mx3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) |
| 840 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 841 | struct mx3fb_info *mx3_fbi = fbi->par; |
| 842 | u32 vtotal; |
| 843 | u32 htotal; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 844 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 845 | dev_dbg(fbi->device, "%s\n", __func__); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 846 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 847 | if (var->xres_virtual < var->xres) |
| 848 | var->xres_virtual = var->xres; |
| 849 | if (var->yres_virtual < var->yres) |
| 850 | var->yres_virtual = var->yres; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 851 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 852 | if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) && |
| 853 | (var->bits_per_pixel != 16)) |
| 854 | var->bits_per_pixel = default_bpp; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 855 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 856 | switch (var->bits_per_pixel) { |
| 857 | case 16: |
| 858 | var->red.length = 5; |
| 859 | var->red.offset = 11; |
| 860 | var->red.msb_right = 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 861 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 862 | var->green.length = 6; |
| 863 | var->green.offset = 5; |
| 864 | var->green.msb_right = 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 865 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 866 | var->blue.length = 5; |
| 867 | var->blue.offset = 0; |
| 868 | var->blue.msb_right = 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 869 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 870 | var->transp.length = 0; |
| 871 | var->transp.offset = 0; |
| 872 | var->transp.msb_right = 0; |
| 873 | break; |
| 874 | case 24: |
| 875 | var->red.length = 8; |
| 876 | var->red.offset = 16; |
| 877 | var->red.msb_right = 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 878 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 879 | var->green.length = 8; |
| 880 | var->green.offset = 8; |
| 881 | var->green.msb_right = 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 882 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 883 | var->blue.length = 8; |
| 884 | var->blue.offset = 0; |
| 885 | var->blue.msb_right = 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 886 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 887 | var->transp.length = 0; |
| 888 | var->transp.offset = 0; |
| 889 | var->transp.msb_right = 0; |
| 890 | break; |
| 891 | case 32: |
| 892 | var->red.length = 8; |
| 893 | var->red.offset = 16; |
| 894 | var->red.msb_right = 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 895 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 896 | var->green.length = 8; |
| 897 | var->green.offset = 8; |
| 898 | var->green.msb_right = 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 899 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 900 | var->blue.length = 8; |
| 901 | var->blue.offset = 0; |
| 902 | var->blue.msb_right = 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 903 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 904 | var->transp.length = 8; |
| 905 | var->transp.offset = 24; |
| 906 | var->transp.msb_right = 0; |
| 907 | break; |
| 908 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 909 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 910 | if (var->pixclock < 1000) { |
| 911 | htotal = var->xres + var->right_margin + var->hsync_len + |
| 912 | var->left_margin; |
| 913 | vtotal = var->yres + var->lower_margin + var->vsync_len + |
| 914 | var->upper_margin; |
| 915 | var->pixclock = (vtotal * htotal * 6UL) / 100UL; |
| 916 | var->pixclock = KHZ2PICOS(var->pixclock); |
| 917 | dev_dbg(fbi->device, "pixclock set for 60Hz refresh = %u ps\n", |
| 918 | var->pixclock); |
| 919 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 920 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 921 | var->height = -1; |
| 922 | var->width = -1; |
| 923 | var->grayscale = 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 924 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 925 | /* Preserve sync flags */ |
| 926 | var->sync |= mx3_fbi->sync; |
| 927 | mx3_fbi->sync |= var->sync; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 928 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 929 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 930 | } |
| 931 | |
| 932 | static u32 chan_to_field(unsigned int chan, struct fb_bitfield *bf) |
| 933 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 934 | chan &= 0xffff; |
| 935 | chan >>= 16 - bf->length; |
| 936 | return chan << bf->offset; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 937 | } |
| 938 | |
| 939 | static int mx3fb_setcolreg(unsigned int regno, unsigned int red, |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 940 | unsigned int green, unsigned int blue, |
| 941 | unsigned int trans, struct fb_info *fbi) |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 942 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 943 | struct mx3fb_info *mx3_fbi = fbi->par; |
| 944 | u32 val; |
| 945 | int ret = 1; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 946 | |
Guennadi Liakhovetski | d88ca815 | 2009-04-06 19:01:05 -0700 | [diff] [blame] | 947 | dev_dbg(fbi->device, "%s, regno = %u\n", __func__, regno); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 948 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 949 | mutex_lock(&mx3_fbi->mutex); |
| 950 | /* |
| 951 | * If greyscale is true, then we convert the RGB value |
| 952 | * to greyscale no matter what visual we are using. |
| 953 | */ |
| 954 | if (fbi->var.grayscale) |
| 955 | red = green = blue = (19595 * red + 38470 * green + |
| 956 | 7471 * blue) >> 16; |
| 957 | switch (fbi->fix.visual) { |
| 958 | case FB_VISUAL_TRUECOLOR: |
| 959 | /* |
| 960 | * 16-bit True Colour. We encode the RGB value |
| 961 | * according to the RGB bitfield information. |
| 962 | */ |
| 963 | if (regno < 16) { |
| 964 | u32 *pal = fbi->pseudo_palette; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 965 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 966 | val = chan_to_field(red, &fbi->var.red); |
| 967 | val |= chan_to_field(green, &fbi->var.green); |
| 968 | val |= chan_to_field(blue, &fbi->var.blue); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 969 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 970 | pal[regno] = val; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 971 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 972 | ret = 0; |
| 973 | } |
| 974 | break; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 975 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 976 | case FB_VISUAL_STATIC_PSEUDOCOLOR: |
| 977 | case FB_VISUAL_PSEUDOCOLOR: |
| 978 | break; |
| 979 | } |
| 980 | mutex_unlock(&mx3_fbi->mutex); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 981 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 982 | return ret; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 983 | } |
| 984 | |
Guennadi Liakhovetski | 20de03d | 2009-08-06 15:07:40 -0700 | [diff] [blame] | 985 | static void __blank(int blank, struct fb_info *fbi) |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 986 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 987 | struct mx3fb_info *mx3_fbi = fbi->par; |
| 988 | struct mx3fb_data *mx3fb = mx3_fbi->mx3fb; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 989 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 990 | mx3_fbi->blank = blank; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 991 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 992 | switch (blank) { |
| 993 | case FB_BLANK_POWERDOWN: |
| 994 | case FB_BLANK_VSYNC_SUSPEND: |
| 995 | case FB_BLANK_HSYNC_SUSPEND: |
| 996 | case FB_BLANK_NORMAL: |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 997 | sdc_set_brightness(mx3fb, 0); |
Guennadi Liakhovetski | d88ca815 | 2009-04-06 19:01:05 -0700 | [diff] [blame] | 998 | memset((char *)fbi->screen_base, 0, fbi->fix.smem_len); |
| 999 | /* Give LCD time to update - enough for 50 and 60 Hz */ |
| 1000 | msleep(25); |
| 1001 | sdc_disable_channel(mx3_fbi); |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1002 | break; |
| 1003 | case FB_BLANK_UNBLANK: |
| 1004 | sdc_enable_channel(mx3_fbi); |
| 1005 | sdc_set_brightness(mx3fb, mx3fb->backlight_level); |
| 1006 | break; |
| 1007 | } |
Guennadi Liakhovetski | 20de03d | 2009-08-06 15:07:40 -0700 | [diff] [blame] | 1008 | } |
| 1009 | |
| 1010 | /** |
| 1011 | * mx3fb_blank() - blank the display. |
| 1012 | */ |
| 1013 | static int mx3fb_blank(int blank, struct fb_info *fbi) |
| 1014 | { |
| 1015 | struct mx3fb_info *mx3_fbi = fbi->par; |
| 1016 | |
| 1017 | dev_dbg(fbi->device, "%s, blank = %d, base %p, len %u\n", __func__, |
| 1018 | blank, fbi->screen_base, fbi->fix.smem_len); |
| 1019 | |
| 1020 | if (mx3_fbi->blank == blank) |
| 1021 | return 0; |
| 1022 | |
| 1023 | mutex_lock(&mx3_fbi->mutex); |
| 1024 | __blank(blank, fbi); |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1025 | mutex_unlock(&mx3_fbi->mutex); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1026 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1027 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1028 | } |
| 1029 | |
| 1030 | /** |
| 1031 | * mx3fb_pan_display() - pan or wrap the display |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1032 | * @var: variable screen buffer information. |
| 1033 | * @info: framebuffer information pointer. |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1034 | * |
| 1035 | * We look only at xoffset, yoffset and the FB_VMODE_YWRAP flag |
| 1036 | */ |
| 1037 | static int mx3fb_pan_display(struct fb_var_screeninfo *var, |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1038 | struct fb_info *fbi) |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1039 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1040 | struct mx3fb_info *mx3_fbi = fbi->par; |
| 1041 | u32 y_bottom; |
| 1042 | unsigned long base; |
| 1043 | off_t offset; |
| 1044 | dma_cookie_t cookie; |
| 1045 | struct scatterlist *sg = mx3_fbi->sg; |
| 1046 | struct dma_chan *dma_chan = &mx3_fbi->idmac_channel->dma_chan; |
| 1047 | struct dma_async_tx_descriptor *txd; |
| 1048 | int ret; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1049 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1050 | dev_dbg(fbi->device, "%s [%c]\n", __func__, |
| 1051 | list_empty(&mx3_fbi->idmac_channel->queue) ? '-' : '+'); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1052 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1053 | if (var->xoffset > 0) { |
| 1054 | dev_dbg(fbi->device, "x panning not supported\n"); |
| 1055 | return -EINVAL; |
| 1056 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1057 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1058 | if (fbi->var.xoffset == var->xoffset && |
| 1059 | fbi->var.yoffset == var->yoffset) |
| 1060 | return 0; /* No change, do nothing */ |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1061 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1062 | y_bottom = var->yoffset; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1063 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1064 | if (!(var->vmode & FB_VMODE_YWRAP)) |
| 1065 | y_bottom += var->yres; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1066 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1067 | if (y_bottom > fbi->var.yres_virtual) |
| 1068 | return -EINVAL; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1069 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1070 | mutex_lock(&mx3_fbi->mutex); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1071 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1072 | offset = (var->yoffset * var->xres_virtual + var->xoffset) * |
| 1073 | (var->bits_per_pixel / 8); |
| 1074 | base = fbi->fix.smem_start + offset; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1075 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1076 | dev_dbg(fbi->device, "Updating SDC BG buf %d address=0x%08lX\n", |
| 1077 | mx3_fbi->cur_ipu_buf, base); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1078 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1079 | /* |
| 1080 | * We enable the End of Frame interrupt, which will free a tx-descriptor, |
| 1081 | * which we will need for the next device_prep_slave_sg(). The |
| 1082 | * IRQ-handler will disable the IRQ again. |
| 1083 | */ |
| 1084 | init_completion(&mx3_fbi->flip_cmpl); |
| 1085 | enable_irq(mx3_fbi->idmac_channel->eof_irq); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1086 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1087 | ret = wait_for_completion_timeout(&mx3_fbi->flip_cmpl, HZ / 10); |
| 1088 | if (ret <= 0) { |
| 1089 | mutex_unlock(&mx3_fbi->mutex); |
| 1090 | dev_info(fbi->device, "Panning failed due to %s\n", ret < 0 ? |
| 1091 | "user interrupt" : "timeout"); |
Guennadi Liakhovetski | d88ca815 | 2009-04-06 19:01:05 -0700 | [diff] [blame] | 1092 | disable_irq(mx3_fbi->idmac_channel->eof_irq); |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1093 | return ret ? : -ETIMEDOUT; |
| 1094 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1095 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1096 | mx3_fbi->cur_ipu_buf = !mx3_fbi->cur_ipu_buf; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1097 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1098 | sg_dma_address(&sg[mx3_fbi->cur_ipu_buf]) = base; |
| 1099 | sg_set_page(&sg[mx3_fbi->cur_ipu_buf], |
| 1100 | virt_to_page(fbi->screen_base + offset), fbi->fix.smem_len, |
| 1101 | offset_in_page(fbi->screen_base + offset)); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1102 | |
Guennadi Liakhovetski | d88ca815 | 2009-04-06 19:01:05 -0700 | [diff] [blame] | 1103 | if (mx3_fbi->txd) |
| 1104 | async_tx_ack(mx3_fbi->txd); |
| 1105 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1106 | txd = dma_chan->device->device_prep_slave_sg(dma_chan, sg + |
| 1107 | mx3_fbi->cur_ipu_buf, 1, DMA_TO_DEVICE, DMA_PREP_INTERRUPT); |
| 1108 | if (!txd) { |
| 1109 | dev_err(fbi->device, |
| 1110 | "Error preparing a DMA transaction descriptor.\n"); |
| 1111 | mutex_unlock(&mx3_fbi->mutex); |
| 1112 | return -EIO; |
| 1113 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1114 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1115 | txd->callback_param = txd; |
| 1116 | txd->callback = mx3fb_dma_done; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1117 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1118 | /* |
| 1119 | * Emulate original mx3fb behaviour: each new call to idmac_tx_submit() |
| 1120 | * should switch to another buffer |
| 1121 | */ |
| 1122 | cookie = txd->tx_submit(txd); |
| 1123 | dev_dbg(fbi->device, "%d: Submit %p #%d\n", __LINE__, txd, cookie); |
| 1124 | if (cookie < 0) { |
| 1125 | dev_err(fbi->device, |
| 1126 | "Error updating SDC buf %d to address=0x%08lX\n", |
| 1127 | mx3_fbi->cur_ipu_buf, base); |
| 1128 | mutex_unlock(&mx3_fbi->mutex); |
| 1129 | return -EIO; |
| 1130 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1131 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1132 | mx3_fbi->txd = txd; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1133 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1134 | fbi->var.xoffset = var->xoffset; |
| 1135 | fbi->var.yoffset = var->yoffset; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1136 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1137 | if (var->vmode & FB_VMODE_YWRAP) |
| 1138 | fbi->var.vmode |= FB_VMODE_YWRAP; |
| 1139 | else |
| 1140 | fbi->var.vmode &= ~FB_VMODE_YWRAP; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1141 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1142 | mutex_unlock(&mx3_fbi->mutex); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1143 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1144 | dev_dbg(fbi->device, "Update complete\n"); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1145 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1146 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1147 | } |
| 1148 | |
| 1149 | /* |
| 1150 | * This structure contains the pointers to the control functions that are |
| 1151 | * invoked by the core framebuffer driver to perform operations like |
| 1152 | * blitting, rectangle filling, copy regions and cursor definition. |
| 1153 | */ |
| 1154 | static struct fb_ops mx3fb_ops = { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1155 | .owner = THIS_MODULE, |
| 1156 | .fb_set_par = mx3fb_set_par, |
| 1157 | .fb_check_var = mx3fb_check_var, |
| 1158 | .fb_setcolreg = mx3fb_setcolreg, |
| 1159 | .fb_pan_display = mx3fb_pan_display, |
| 1160 | .fb_fillrect = cfb_fillrect, |
| 1161 | .fb_copyarea = cfb_copyarea, |
| 1162 | .fb_imageblit = cfb_imageblit, |
| 1163 | .fb_blank = mx3fb_blank, |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1164 | }; |
| 1165 | |
| 1166 | #ifdef CONFIG_PM |
| 1167 | /* |
| 1168 | * Power management hooks. Note that we won't be called from IRQ context, |
| 1169 | * unlike the blank functions above, so we may sleep. |
| 1170 | */ |
| 1171 | |
| 1172 | /* |
| 1173 | * Suspends the framebuffer and blanks the screen. Power management support |
| 1174 | */ |
| 1175 | static int mx3fb_suspend(struct platform_device *pdev, pm_message_t state) |
| 1176 | { |
Sascha Hauer | b09de42 | 2009-04-08 11:45:47 +0200 | [diff] [blame] | 1177 | struct mx3fb_data *mx3fb = platform_get_drvdata(pdev); |
| 1178 | struct mx3fb_info *mx3_fbi = mx3fb->fbi->par; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1179 | |
Torben Hohn | ac751ef | 2011-01-25 15:07:35 -0800 | [diff] [blame] | 1180 | console_lock(); |
Sascha Hauer | b09de42 | 2009-04-08 11:45:47 +0200 | [diff] [blame] | 1181 | fb_set_suspend(mx3fb->fbi, 1); |
Torben Hohn | ac751ef | 2011-01-25 15:07:35 -0800 | [diff] [blame] | 1182 | console_unlock(); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1183 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1184 | if (mx3_fbi->blank == FB_BLANK_UNBLANK) { |
| 1185 | sdc_disable_channel(mx3_fbi); |
| 1186 | sdc_set_brightness(mx3fb, 0); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1187 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1188 | } |
| 1189 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1190 | } |
| 1191 | |
| 1192 | /* |
| 1193 | * Resumes the framebuffer and unblanks the screen. Power management support |
| 1194 | */ |
| 1195 | static int mx3fb_resume(struct platform_device *pdev) |
| 1196 | { |
Sascha Hauer | b09de42 | 2009-04-08 11:45:47 +0200 | [diff] [blame] | 1197 | struct mx3fb_data *mx3fb = platform_get_drvdata(pdev); |
| 1198 | struct mx3fb_info *mx3_fbi = mx3fb->fbi->par; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1199 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1200 | if (mx3_fbi->blank == FB_BLANK_UNBLANK) { |
| 1201 | sdc_enable_channel(mx3_fbi); |
Sascha Hauer | b09de42 | 2009-04-08 11:45:47 +0200 | [diff] [blame] | 1202 | sdc_set_brightness(mx3fb, mx3fb->backlight_level); |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1203 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1204 | |
Torben Hohn | ac751ef | 2011-01-25 15:07:35 -0800 | [diff] [blame] | 1205 | console_lock(); |
Sascha Hauer | b09de42 | 2009-04-08 11:45:47 +0200 | [diff] [blame] | 1206 | fb_set_suspend(mx3fb->fbi, 0); |
Torben Hohn | ac751ef | 2011-01-25 15:07:35 -0800 | [diff] [blame] | 1207 | console_unlock(); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1208 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1209 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1210 | } |
| 1211 | #else |
| 1212 | #define mx3fb_suspend NULL |
| 1213 | #define mx3fb_resume NULL |
| 1214 | #endif |
| 1215 | |
| 1216 | /* |
| 1217 | * Main framebuffer functions |
| 1218 | */ |
| 1219 | |
| 1220 | /** |
| 1221 | * mx3fb_map_video_memory() - allocates the DRAM memory for the frame buffer. |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1222 | * @fbi: framebuffer information pointer |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 1223 | * @mem_len: length of mapped memory |
Guennadi Liakhovetski | 20de03d | 2009-08-06 15:07:40 -0700 | [diff] [blame] | 1224 | * @lock: do not lock during initialisation |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1225 | * @return: Error code indicating success or failure |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1226 | * |
| 1227 | * This buffer is remapped into a non-cached, non-buffered, memory region to |
| 1228 | * allow palette and pixel writes to occur without flushing the cache. Once this |
| 1229 | * area is remapped, all virtual memory access to the video memory should occur |
| 1230 | * at the new region. |
| 1231 | */ |
Guennadi Liakhovetski | 20de03d | 2009-08-06 15:07:40 -0700 | [diff] [blame] | 1232 | static int mx3fb_map_video_memory(struct fb_info *fbi, unsigned int mem_len, |
| 1233 | bool lock) |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1234 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1235 | int retval = 0; |
| 1236 | dma_addr_t addr; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1237 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1238 | fbi->screen_base = dma_alloc_writecombine(fbi->device, |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 1239 | mem_len, |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1240 | &addr, GFP_DMA); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1241 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1242 | if (!fbi->screen_base) { |
| 1243 | dev_err(fbi->device, "Cannot allocate %u bytes framebuffer memory\n", |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 1244 | mem_len); |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1245 | retval = -EBUSY; |
| 1246 | goto err0; |
| 1247 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1248 | |
Guennadi Liakhovetski | 20de03d | 2009-08-06 15:07:40 -0700 | [diff] [blame] | 1249 | if (lock) |
| 1250 | mutex_lock(&fbi->mm_lock); |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1251 | fbi->fix.smem_start = addr; |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 1252 | fbi->fix.smem_len = mem_len; |
Guennadi Liakhovetski | 20de03d | 2009-08-06 15:07:40 -0700 | [diff] [blame] | 1253 | if (lock) |
| 1254 | mutex_unlock(&fbi->mm_lock); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1255 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1256 | dev_dbg(fbi->device, "allocated fb @ p=0x%08x, v=0x%p, size=%d.\n", |
| 1257 | (uint32_t) fbi->fix.smem_start, fbi->screen_base, fbi->fix.smem_len); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1258 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1259 | fbi->screen_size = fbi->fix.smem_len; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1260 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1261 | /* Clear the screen */ |
| 1262 | memset((char *)fbi->screen_base, 0, fbi->fix.smem_len); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1263 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1264 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1265 | |
| 1266 | err0: |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1267 | fbi->fix.smem_len = 0; |
| 1268 | fbi->fix.smem_start = 0; |
| 1269 | fbi->screen_base = NULL; |
| 1270 | return retval; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1271 | } |
| 1272 | |
| 1273 | /** |
| 1274 | * mx3fb_unmap_video_memory() - de-allocate frame buffer memory. |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1275 | * @fbi: framebuffer information pointer |
| 1276 | * @return: error code indicating success or failure |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1277 | */ |
| 1278 | static int mx3fb_unmap_video_memory(struct fb_info *fbi) |
| 1279 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1280 | dma_free_writecombine(fbi->device, fbi->fix.smem_len, |
| 1281 | fbi->screen_base, fbi->fix.smem_start); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1282 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1283 | fbi->screen_base = 0; |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 1284 | mutex_lock(&fbi->mm_lock); |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1285 | fbi->fix.smem_start = 0; |
| 1286 | fbi->fix.smem_len = 0; |
Krzysztof Helt | 537a1bf | 2009-06-30 11:41:29 -0700 | [diff] [blame] | 1287 | mutex_unlock(&fbi->mm_lock); |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1288 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1289 | } |
| 1290 | |
| 1291 | /** |
| 1292 | * mx3fb_init_fbinfo() - initialize framebuffer information object. |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1293 | * @return: initialized framebuffer structure. |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1294 | */ |
| 1295 | static struct fb_info *mx3fb_init_fbinfo(struct device *dev, struct fb_ops *ops) |
| 1296 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1297 | struct fb_info *fbi; |
| 1298 | struct mx3fb_info *mx3fbi; |
| 1299 | int ret; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1300 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1301 | /* Allocate sufficient memory for the fb structure */ |
| 1302 | fbi = framebuffer_alloc(sizeof(struct mx3fb_info), dev); |
| 1303 | if (!fbi) |
| 1304 | return NULL; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1305 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1306 | mx3fbi = fbi->par; |
| 1307 | mx3fbi->cookie = -EINVAL; |
| 1308 | mx3fbi->cur_ipu_buf = 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1309 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1310 | fbi->var.activate = FB_ACTIVATE_NOW; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1311 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1312 | fbi->fbops = ops; |
| 1313 | fbi->flags = FBINFO_FLAG_DEFAULT; |
| 1314 | fbi->pseudo_palette = mx3fbi->pseudo_palette; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1315 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1316 | mutex_init(&mx3fbi->mutex); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1317 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1318 | /* Allocate colormap */ |
| 1319 | ret = fb_alloc_cmap(&fbi->cmap, 16, 0); |
| 1320 | if (ret < 0) { |
| 1321 | framebuffer_release(fbi); |
| 1322 | return NULL; |
| 1323 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1324 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1325 | return fbi; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1326 | } |
| 1327 | |
| 1328 | static int init_fb_chan(struct mx3fb_data *mx3fb, struct idmac_channel *ichan) |
| 1329 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1330 | struct device *dev = mx3fb->dev; |
| 1331 | struct mx3fb_platform_data *mx3fb_pdata = dev->platform_data; |
| 1332 | const char *name = mx3fb_pdata->name; |
| 1333 | unsigned int irq; |
| 1334 | struct fb_info *fbi; |
| 1335 | struct mx3fb_info *mx3fbi; |
| 1336 | const struct fb_videomode *mode; |
| 1337 | int ret, num_modes; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1338 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1339 | ichan->client = mx3fb; |
| 1340 | irq = ichan->eof_irq; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1341 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1342 | if (ichan->dma_chan.chan_id != IDMAC_SDC_0) |
| 1343 | return -EINVAL; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1344 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1345 | fbi = mx3fb_init_fbinfo(dev, &mx3fb_ops); |
| 1346 | if (!fbi) |
| 1347 | return -ENOMEM; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1348 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1349 | if (!fb_mode) |
| 1350 | fb_mode = name; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1351 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1352 | if (!fb_mode) { |
| 1353 | ret = -EINVAL; |
| 1354 | goto emode; |
| 1355 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1356 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1357 | if (mx3fb_pdata->mode && mx3fb_pdata->num_modes) { |
| 1358 | mode = mx3fb_pdata->mode; |
| 1359 | num_modes = mx3fb_pdata->num_modes; |
| 1360 | } else { |
| 1361 | mode = mx3fb_modedb; |
| 1362 | num_modes = ARRAY_SIZE(mx3fb_modedb); |
| 1363 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1364 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1365 | if (!fb_find_mode(&fbi->var, fbi, fb_mode, mode, |
| 1366 | num_modes, NULL, default_bpp)) { |
| 1367 | ret = -EBUSY; |
| 1368 | goto emode; |
| 1369 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1370 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1371 | fb_videomode_to_modelist(mode, num_modes, &fbi->modelist); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1372 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1373 | /* Default Y virtual size is 2x panel size */ |
| 1374 | fbi->var.yres_virtual = fbi->var.yres * 2; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1375 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1376 | mx3fb->fbi = fbi; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1377 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1378 | /* set Display Interface clock period */ |
| 1379 | mx3fb_write_reg(mx3fb, 0x00100010L, DI_HSP_CLK_PER); |
| 1380 | /* Might need to trigger HSP clock change - see 44.3.3.8.5 */ |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1381 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1382 | sdc_set_brightness(mx3fb, 255); |
| 1383 | sdc_set_global_alpha(mx3fb, true, 0xFF); |
| 1384 | sdc_set_color_key(mx3fb, IDMAC_SDC_0, false, 0); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1385 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1386 | mx3fbi = fbi->par; |
| 1387 | mx3fbi->idmac_channel = ichan; |
| 1388 | mx3fbi->ipu_ch = ichan->dma_chan.chan_id; |
| 1389 | mx3fbi->mx3fb = mx3fb; |
| 1390 | mx3fbi->blank = FB_BLANK_NORMAL; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1391 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1392 | init_completion(&mx3fbi->flip_cmpl); |
| 1393 | disable_irq(ichan->eof_irq); |
| 1394 | dev_dbg(mx3fb->dev, "disabling irq %d\n", ichan->eof_irq); |
Guennadi Liakhovetski | 20de03d | 2009-08-06 15:07:40 -0700 | [diff] [blame] | 1395 | ret = __set_par(fbi, false); |
| 1396 | if (ret < 0) |
| 1397 | goto esetpar; |
| 1398 | |
| 1399 | __blank(FB_BLANK_UNBLANK, fbi); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1400 | |
Sascha Hauer | 2eec8c3 | 2009-03-20 20:27:37 +0100 | [diff] [blame] | 1401 | dev_info(dev, "registered, using mode %s\n", fb_mode); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1402 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1403 | ret = register_framebuffer(fbi); |
| 1404 | if (ret < 0) |
| 1405 | goto erfb; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1406 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1407 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1408 | |
| 1409 | erfb: |
| 1410 | esetpar: |
| 1411 | emode: |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1412 | fb_dealloc_cmap(&fbi->cmap); |
| 1413 | framebuffer_release(fbi); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1414 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1415 | return ret; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1416 | } |
| 1417 | |
| 1418 | static bool chan_filter(struct dma_chan *chan, void *arg) |
| 1419 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1420 | struct dma_chan_request *rq = arg; |
| 1421 | struct device *dev; |
| 1422 | struct mx3fb_platform_data *mx3fb_pdata; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1423 | |
Sascha Hauer | 1b346af | 2010-08-16 08:03:04 +0200 | [diff] [blame] | 1424 | if (!imx_dma_is_ipu(chan)) |
| 1425 | return false; |
| 1426 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1427 | if (!rq) |
| 1428 | return false; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1429 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1430 | dev = rq->mx3fb->dev; |
| 1431 | mx3fb_pdata = dev->platform_data; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1432 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1433 | return rq->id == chan->chan_id && |
| 1434 | mx3fb_pdata->dma_dev == chan->device->dev; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1435 | } |
| 1436 | |
| 1437 | static void release_fbi(struct fb_info *fbi) |
| 1438 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1439 | mx3fb_unmap_video_memory(fbi); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1440 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1441 | fb_dealloc_cmap(&fbi->cmap); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1442 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1443 | unregister_framebuffer(fbi); |
| 1444 | framebuffer_release(fbi); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1445 | } |
| 1446 | |
| 1447 | static int mx3fb_probe(struct platform_device *pdev) |
| 1448 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1449 | struct device *dev = &pdev->dev; |
| 1450 | int ret; |
| 1451 | struct resource *sdc_reg; |
| 1452 | struct mx3fb_data *mx3fb; |
| 1453 | dma_cap_mask_t mask; |
| 1454 | struct dma_chan *chan; |
| 1455 | struct dma_chan_request rq; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1456 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1457 | /* |
| 1458 | * Display Interface (DI) and Synchronous Display Controller (SDC) |
| 1459 | * registers |
| 1460 | */ |
| 1461 | sdc_reg = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 1462 | if (!sdc_reg) |
| 1463 | return -EINVAL; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1464 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1465 | mx3fb = kzalloc(sizeof(*mx3fb), GFP_KERNEL); |
| 1466 | if (!mx3fb) |
| 1467 | return -ENOMEM; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1468 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1469 | spin_lock_init(&mx3fb->lock); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1470 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1471 | mx3fb->reg_base = ioremap(sdc_reg->start, resource_size(sdc_reg)); |
| 1472 | if (!mx3fb->reg_base) { |
| 1473 | ret = -ENOMEM; |
| 1474 | goto eremap; |
| 1475 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1476 | |
Joe Perches | 3b80ffd | 2010-12-13 13:42:21 -0800 | [diff] [blame] | 1477 | pr_debug("Remapped %pR at %p\n", sdc_reg, mx3fb->reg_base); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1478 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1479 | /* IDMAC interface */ |
| 1480 | dmaengine_get(); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1481 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1482 | mx3fb->dev = dev; |
| 1483 | platform_set_drvdata(pdev, mx3fb); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1484 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1485 | rq.mx3fb = mx3fb; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1486 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1487 | dma_cap_zero(mask); |
| 1488 | dma_cap_set(DMA_SLAVE, mask); |
| 1489 | dma_cap_set(DMA_PRIVATE, mask); |
| 1490 | rq.id = IDMAC_SDC_0; |
| 1491 | chan = dma_request_channel(mask, chan_filter, &rq); |
| 1492 | if (!chan) { |
| 1493 | ret = -EBUSY; |
| 1494 | goto ersdc0; |
| 1495 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1496 | |
Alberto Panizzo | b3cb537 | 2010-02-02 13:43:59 -0800 | [diff] [blame] | 1497 | mx3fb->backlight_level = 255; |
| 1498 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1499 | ret = init_fb_chan(mx3fb, to_idmac_chan(chan)); |
| 1500 | if (ret < 0) |
| 1501 | goto eisdc0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1502 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1503 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1504 | |
| 1505 | eisdc0: |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1506 | dma_release_channel(chan); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1507 | ersdc0: |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1508 | dmaengine_put(); |
| 1509 | iounmap(mx3fb->reg_base); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1510 | eremap: |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1511 | kfree(mx3fb); |
| 1512 | dev_err(dev, "mx3fb: failed to register fb\n"); |
| 1513 | return ret; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1514 | } |
| 1515 | |
| 1516 | static int mx3fb_remove(struct platform_device *dev) |
| 1517 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1518 | struct mx3fb_data *mx3fb = platform_get_drvdata(dev); |
| 1519 | struct fb_info *fbi = mx3fb->fbi; |
| 1520 | struct mx3fb_info *mx3_fbi = fbi->par; |
| 1521 | struct dma_chan *chan; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1522 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1523 | chan = &mx3_fbi->idmac_channel->dma_chan; |
| 1524 | release_fbi(fbi); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1525 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1526 | dma_release_channel(chan); |
| 1527 | dmaengine_put(); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1528 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1529 | iounmap(mx3fb->reg_base); |
| 1530 | kfree(mx3fb); |
| 1531 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1532 | } |
| 1533 | |
| 1534 | static struct platform_driver mx3fb_driver = { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1535 | .driver = { |
| 1536 | .name = MX3FB_NAME, |
| 1537 | }, |
| 1538 | .probe = mx3fb_probe, |
| 1539 | .remove = mx3fb_remove, |
| 1540 | .suspend = mx3fb_suspend, |
| 1541 | .resume = mx3fb_resume, |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1542 | }; |
| 1543 | |
| 1544 | /* |
| 1545 | * Parse user specified options (`video=mx3fb:') |
| 1546 | * example: |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1547 | * video=mx3fb:bpp=16 |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1548 | */ |
Guennadi Liakhovetski | d88ca815 | 2009-04-06 19:01:05 -0700 | [diff] [blame] | 1549 | static int __init mx3fb_setup(void) |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1550 | { |
| 1551 | #ifndef MODULE |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1552 | char *opt, *options = NULL; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1553 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1554 | if (fb_get_options("mx3fb", &options)) |
| 1555 | return -ENODEV; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1556 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1557 | if (!options || !*options) |
| 1558 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1559 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1560 | while ((opt = strsep(&options, ",")) != NULL) { |
| 1561 | if (!*opt) |
| 1562 | continue; |
| 1563 | if (!strncmp(opt, "bpp=", 4)) |
| 1564 | default_bpp = simple_strtoul(opt + 4, NULL, 0); |
| 1565 | else |
| 1566 | fb_mode = opt; |
| 1567 | } |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1568 | #endif |
| 1569 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1570 | return 0; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1571 | } |
| 1572 | |
| 1573 | static int __init mx3fb_init(void) |
| 1574 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1575 | int ret = mx3fb_setup(); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1576 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1577 | if (ret < 0) |
| 1578 | return ret; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1579 | |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1580 | ret = platform_driver_register(&mx3fb_driver); |
| 1581 | return ret; |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1582 | } |
| 1583 | |
| 1584 | static void __exit mx3fb_exit(void) |
| 1585 | { |
Guennadi Liakhovetski | 6e1588cb | 2009-02-26 21:34:28 +0100 | [diff] [blame] | 1586 | platform_driver_unregister(&mx3fb_driver); |
Guennadi Liakhovetski | 86528da | 2009-01-21 10:32:34 -0700 | [diff] [blame] | 1587 | } |
| 1588 | |
| 1589 | module_init(mx3fb_init); |
| 1590 | module_exit(mx3fb_exit); |
| 1591 | |
| 1592 | MODULE_AUTHOR("Freescale Semiconductor, Inc."); |
| 1593 | MODULE_DESCRIPTION("MX3 framebuffer driver"); |
| 1594 | MODULE_ALIAS("platform:" MX3FB_NAME); |
| 1595 | MODULE_LICENSE("GPL v2"); |