1 /* include/linux/sm501.h 2 * 3 * Copyright (c) 2006 Simtec Electronics 4 * Ben Dooks <[email protected]> 5 * Vincent Sanders <[email protected]> 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 as published by 9 * the Free Software Foundation; either version 2 of the License 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 21 extern int sm501_unit_power(struct device *dev, 22 unsigned int unit, unsigned int to); 23 24 extern unsigned long sm501_set_clock(struct device *dev, 25 int clksrc, unsigned long freq); 26 27 extern unsigned long sm501_find_clock(struct device *dev, 28 int clksrc, unsigned long req_freq); 29 30 /* sm501_misc_control 31 * 32 * Modify the SM501's MISC_CONTROL register 33 */ 34 35 extern int sm501_misc_control(struct device *dev, 36 unsigned long set, unsigned long clear); 37 38 /* sm501_modify_reg 39 * 40 * Modify a register in the SM501 which may be shared with other 41 * drivers. 42 */ 43 44 extern unsigned long sm501_modify_reg(struct device *dev, 45 unsigned long reg, 46 unsigned long set, 47 unsigned long clear); 48 49 /* sm501_gpio_set 50 * 51 * set the state of the given GPIO line 52 */ 53 54 extern void sm501_gpio_set(struct device *dev, 55 unsigned long gpio, 56 unsigned int to, 57 unsigned int dir); 58 59 /* sm501_gpio_get 60 * 61 * get the state of the given GPIO line 62 */ 63 64 extern unsigned long sm501_gpio_get(struct device *dev, 65 unsigned long gpio); 66 67 68 /* Platform data definitions */ 69 70 #define SM501FB_FLAG_USE_INIT_MODE (1<<0) 71 #define SM501FB_FLAG_DISABLE_AT_EXIT (1<<1) 72 #define SM501FB_FLAG_USE_HWCURSOR (1<<2) 73 #define SM501FB_FLAG_USE_HWACCEL (1<<3) 74 #define SM501FB_FLAG_PANEL_NO_FPEN (1<<4) 75 #define SM501FB_FLAG_PANEL_NO_VBIASEN (1<<5) 76 77 struct sm501_platdata_fbsub { 78 struct fb_videomode *def_mode; 79 unsigned int def_bpp; 80 unsigned long max_mem; 81 unsigned int flags; 82 }; 83 84 enum sm501_fb_routing { 85 SM501_FB_OWN = 0, /* CRT=>CRT, Panel=>Panel */ 86 SM501_FB_CRT_PANEL = 1, /* Panel=>CRT, Panel=>Panel */ 87 }; 88 89 /* sm501_platdata_fb flag field bit definitions */ 90 91 #define SM501_FBPD_SWAP_FB_ENDIAN (1<<0) /* need to endian swap */ 92 93 /* sm501_platdata_fb 94 * 95 * configuration data for the framebuffer driver 96 */ 97 98 struct sm501_platdata_fb { 99 enum sm501_fb_routing fb_route; 100 unsigned int flags; 101 struct sm501_platdata_fbsub *fb_crt; 102 struct sm501_platdata_fbsub *fb_pnl; 103 }; 104 105 /* gpio i2c */ 106 107 struct sm501_platdata_gpio_i2c { 108 unsigned int pin_sda; 109 unsigned int pin_scl; 110 }; 111 112 /* sm501_initdata 113 * 114 * use for initialising values that may not have been setup 115 * before the driver is loaded. 116 */ 117 118 struct sm501_reg_init { 119 unsigned long set; 120 unsigned long mask; 121 }; 122 123 #define SM501_USE_USB_HOST (1<<0) 124 #define SM501_USE_USB_SLAVE (1<<1) 125 #define SM501_USE_SSP0 (1<<2) 126 #define SM501_USE_SSP1 (1<<3) 127 #define SM501_USE_UART0 (1<<4) 128 #define SM501_USE_UART1 (1<<5) 129 #define SM501_USE_FBACCEL (1<<6) 130 #define SM501_USE_AC97 (1<<7) 131 #define SM501_USE_I2S (1<<8) 132 133 #define SM501_USE_ALL (0xffffffff) 134 135 struct sm501_initdata { 136 struct sm501_reg_init gpio_low; 137 struct sm501_reg_init gpio_high; 138 struct sm501_reg_init misc_timing; 139 struct sm501_reg_init misc_control; 140 141 unsigned long devices; 142 unsigned long mclk; /* non-zero to modify */ 143 unsigned long m1xclk; /* non-zero to modify */ 144 }; 145 146 /* sm501_init_gpio 147 * 148 * default gpio settings 149 */ 150 151 struct sm501_init_gpio { 152 struct sm501_reg_init gpio_data_low; 153 struct sm501_reg_init gpio_data_high; 154 struct sm501_reg_init gpio_ddr_low; 155 struct sm501_reg_init gpio_ddr_high; 156 }; 157 158 /* sm501_platdata 159 * 160 * This is passed with the platform device to allow the board 161 * to control the behaviour of the SM501 driver(s) which attach 162 * to the device. 163 * 164 */ 165 166 struct sm501_platdata { 167 struct sm501_initdata *init; 168 struct sm501_init_gpio *init_gpiop; 169 struct sm501_platdata_fb *fb; 170 171 struct sm501_platdata_gpio_i2c *gpio_i2c; 172 unsigned int gpio_i2c_nr; 173 }; 174