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(int clksrc, unsigned long req_freq); 28 29 /* sm501_misc_control 30 * 31 * Modify the SM501's MISC_CONTROL register 32 */ 33 34 extern int sm501_misc_control(struct device *dev, 35 unsigned long set, unsigned long clear); 36 37 /* sm501_modify_reg 38 * 39 * Modify a register in the SM501 which may be shared with other 40 * drivers. 41 */ 42 43 extern unsigned long sm501_modify_reg(struct device *dev, 44 unsigned long reg, 45 unsigned long set, 46 unsigned long clear); 47 48 /* sm501_gpio_set 49 * 50 * set the state of the given GPIO line 51 */ 52 53 extern void sm501_gpio_set(struct device *dev, 54 unsigned long gpio, 55 unsigned int to, 56 unsigned int dir); 57 58 /* sm501_gpio_get 59 * 60 * get the state of the given GPIO line 61 */ 62 63 extern unsigned long sm501_gpio_get(struct device *dev, 64 unsigned long gpio); 65 66 67 /* Platform data definitions */ 68 69 #define SM501FB_FLAG_USE_INIT_MODE (1<<0) 70 #define SM501FB_FLAG_DISABLE_AT_EXIT (1<<1) 71 #define SM501FB_FLAG_USE_HWCURSOR (1<<2) 72 #define SM501FB_FLAG_USE_HWACCEL (1<<3) 73 #define SM501FB_FLAG_PANEL_USE_FPEN (1<<4) 74 #define SM501FB_FLAG_PANEL_USE_VBIASEN (1<<5) 75 76 struct sm501_platdata_fbsub { 77 struct fb_videomode *def_mode; 78 unsigned int def_bpp; 79 unsigned long max_mem; 80 unsigned int flags; 81 }; 82 83 enum sm501_fb_routing { 84 SM501_FB_OWN = 0, /* CRT=>CRT, Panel=>Panel */ 85 SM501_FB_CRT_PANEL = 1, /* Panel=>CRT, Panel=>Panel */ 86 }; 87 88 /* sm501_platdata_fb flag field bit definitions */ 89 90 #define SM501_FBPD_SWAP_FB_ENDIAN (1<<0) /* need to endian swap */ 91 92 /* sm501_platdata_fb 93 * 94 * configuration data for the framebuffer driver 95 */ 96 97 struct sm501_platdata_fb { 98 enum sm501_fb_routing fb_route; 99 unsigned int flags; 100 struct sm501_platdata_fbsub *fb_crt; 101 struct sm501_platdata_fbsub *fb_pnl; 102 }; 103 104 /* gpio i2c */ 105 106 struct sm501_platdata_gpio_i2c { 107 unsigned int pin_sda; 108 unsigned int pin_scl; 109 }; 110 111 /* sm501_initdata 112 * 113 * use for initialising values that may not have been setup 114 * before the driver is loaded. 115 */ 116 117 struct sm501_reg_init { 118 unsigned long set; 119 unsigned long mask; 120 }; 121 122 #define SM501_USE_USB_HOST (1<<0) 123 #define SM501_USE_USB_SLAVE (1<<1) 124 #define SM501_USE_SSP0 (1<<2) 125 #define SM501_USE_SSP1 (1<<3) 126 #define SM501_USE_UART0 (1<<4) 127 #define SM501_USE_UART1 (1<<5) 128 #define SM501_USE_FBACCEL (1<<6) 129 #define SM501_USE_AC97 (1<<7) 130 #define SM501_USE_I2S (1<<8) 131 132 #define SM501_USE_ALL (0xffffffff) 133 134 struct sm501_initdata { 135 struct sm501_reg_init gpio_low; 136 struct sm501_reg_init gpio_high; 137 struct sm501_reg_init misc_timing; 138 struct sm501_reg_init misc_control; 139 140 unsigned long devices; 141 unsigned long mclk; /* non-zero to modify */ 142 unsigned long m1xclk; /* non-zero to modify */ 143 }; 144 145 /* sm501_init_gpio 146 * 147 * default gpio settings 148 */ 149 150 struct sm501_init_gpio { 151 struct sm501_reg_init gpio_data_low; 152 struct sm501_reg_init gpio_data_high; 153 struct sm501_reg_init gpio_ddr_low; 154 struct sm501_reg_init gpio_ddr_high; 155 }; 156 157 /* sm501_platdata 158 * 159 * This is passed with the platform device to allow the board 160 * to control the behaviour of the SM501 driver(s) which attach 161 * to the device. 162 * 163 */ 164 165 struct sm501_platdata { 166 struct sm501_initdata *init; 167 struct sm501_init_gpio *init_gpiop; 168 struct sm501_platdata_fb *fb; 169 170 struct sm501_platdata_gpio_i2c *gpio_i2c; 171 unsigned int gpio_i2c_nr; 172 }; 173