include/linux/sm501.h

   1 /* include/linux/sm501.h
   2  *
   3  * Copyright (c) 2006 Simtec Electronics
   4  *      Ben Dooks <ben@simtec.co.uk>
   5  *      Vincent Sanders <vince@simtec.co.uk>
   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
  74 struct sm501_platdata_fbsub {
  75         struct fb_videomode     *def_mode;
  76         unsigned int             def_bpp;
  77         unsigned long            max_mem;
  78         unsigned int             flags;
  79 };
  80
  81 enum sm501_fb_routing {
  82         SM501_FB_OWN            = 0,    /* CRT=>CRT, Panel=>Panel */
  83         SM501_FB_CRT_PANEL      = 1,    /* Panel=>CRT, Panel=>Panel */
  84 };
  85
  86 /* sm501_platdata_fb flag field bit definitions */
  87
  88 #define SM501_FBPD_SWAP_FB_ENDIAN       (1<<0)  /* need to endian swap */
  89
  90 /* sm501_platdata_fb
  91  *
  92  * configuration data for the framebuffer driver
  93 */
  94
  95 struct sm501_platdata_fb {
  96         enum sm501_fb_routing            fb_route;
  97         unsigned int                     flags;
  98         struct sm501_platdata_fbsub     *fb_crt;
  99         struct sm501_platdata_fbsub     *fb_pnl;
 100 };
 101
 102 /* gpio i2c */
 103
 104 struct sm501_platdata_gpio_i2c {
 105         unsigned int            pin_sda;
 106         unsigned int            pin_scl;
 107 };
 108
 109 /* sm501_initdata
 110  *
 111  * use for initialising values that may not have been setup
 112  * before the driver is loaded.
 113 */
 114
 115 struct sm501_reg_init {
 116         unsigned long           set;
 117         unsigned long           mask;
 118 };
 119
 120 #define SM501_USE_USB_HOST      (1<<0)
 121 #define SM501_USE_USB_SLAVE     (1<<1)
 122 #define SM501_USE_SSP0          (1<<2)
 123 #define SM501_USE_SSP1          (1<<3)
 124 #define SM501_USE_UART0         (1<<4)
 125 #define SM501_USE_UART1         (1<<5)
 126 #define SM501_USE_FBACCEL       (1<<6)
 127 #define SM501_USE_AC97          (1<<7)
 128 #define SM501_USE_I2S           (1<<8)
 129
 130 #define SM501_USE_ALL           (0xffffffff)
 131
 132 struct sm501_initdata {
 133         struct sm501_reg_init   gpio_low;
 134         struct sm501_reg_init   gpio_high;
 135         struct sm501_reg_init   misc_timing;
 136         struct sm501_reg_init   misc_control;
 137
 138         unsigned long           devices;
 139         unsigned long           mclk;           /* non-zero to modify */
 140         unsigned long           m1xclk;         /* non-zero to modify */
 141 };
 142
 143 /* sm501_init_gpio
 144  *
 145  * default gpio settings
 146 */
 147
 148 struct sm501_init_gpio {
 149         struct sm501_reg_init   gpio_data_low;
 150         struct sm501_reg_init   gpio_data_high;
 151         struct sm501_reg_init   gpio_ddr_low;
 152         struct sm501_reg_init   gpio_ddr_high;
 153 };
 154
 155 /* sm501_platdata
 156  *
 157  * This is passed with the platform device to allow the board
 158  * to control the behaviour of the SM501 driver(s) which attach
 159  * to the device.
 160  *
 161 */
 162
 163 struct sm501_platdata {
 164         struct sm501_initdata           *init;
 165         struct sm501_init_gpio          *init_gpiop;
 166         struct sm501_platdata_fb        *fb;
 167
 168         struct sm501_platdata_gpio_i2c  *gpio_i2c;
 169         unsigned int                     gpio_i2c_nr;
 170 };