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(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
  50 /* Platform data definitions */
  51
  52 #define SM501FB_FLAG_USE_INIT_MODE      (1<<0)
  53 #define SM501FB_FLAG_DISABLE_AT_EXIT    (1<<1)
  54 #define SM501FB_FLAG_USE_HWCURSOR       (1<<2)
  55 #define SM501FB_FLAG_USE_HWACCEL        (1<<3)
  56 #define SM501FB_FLAG_PANEL_NO_FPEN      (1<<4)
  57 #define SM501FB_FLAG_PANEL_NO_VBIASEN   (1<<5)
  58 #define SM501FB_FLAG_PANEL_INV_FPEN     (1<<6)
  59 #define SM501FB_FLAG_PANEL_INV_VBIASEN  (1<<7)
  60
  61 struct sm501_platdata_fbsub {
  62         struct fb_videomode     *def_mode;
  63         unsigned int             def_bpp;
  64         unsigned long            max_mem;
  65         unsigned int             flags;
  66 };
  67
  68 enum sm501_fb_routing {
  69         SM501_FB_OWN            = 0,    /* CRT=>CRT, Panel=>Panel */
  70         SM501_FB_CRT_PANEL      = 1,    /* Panel=>CRT, Panel=>Panel */
  71 };
  72
  73 /* sm501_platdata_fb flag field bit definitions */
  74
  75 #define SM501_FBPD_SWAP_FB_ENDIAN       (1<<0)  /* need to endian swap */
  76
  77 /* sm501_platdata_fb
  78  *
  79  * configuration data for the framebuffer driver
  80 */
  81
  82 struct sm501_platdata_fb {
  83         enum sm501_fb_routing            fb_route;
  84         unsigned int                     flags;
  85         struct sm501_platdata_fbsub     *fb_crt;
  86         struct sm501_platdata_fbsub     *fb_pnl;
  87 };
  88
  89 /* gpio i2c
  90  *
  91  * Note, we have to pass in the bus number, as the number used will be
  92  * passed to the i2c-gpio driver's platform_device.id, subsequently used
  93  * to register the i2c bus.
  94 */
  95
  96 struct sm501_platdata_gpio_i2c {
  97         unsigned int            bus_num;
  98         unsigned int            pin_sda;
  99         unsigned int            pin_scl;
 100         int                     udelay;
 101         int                     timeout;
 102 };
 103
 104 /* sm501_initdata
 105  *
 106  * use for initialising values that may not have been setup
 107  * before the driver is loaded.
 108 */
 109
 110 struct sm501_reg_init {
 111         unsigned long           set;
 112         unsigned long           mask;
 113 };
 114
 115 #define SM501_USE_USB_HOST      (1<<0)
 116 #define SM501_USE_USB_SLAVE     (1<<1)
 117 #define SM501_USE_SSP0          (1<<2)
 118 #define SM501_USE_SSP1          (1<<3)
 119 #define SM501_USE_UART0         (1<<4)
 120 #define SM501_USE_UART1         (1<<5)
 121 #define SM501_USE_FBACCEL       (1<<6)
 122 #define SM501_USE_AC97          (1<<7)
 123 #define SM501_USE_I2S           (1<<8)
 124 #define SM501_USE_GPIO          (1<<9)
 125
 126 #define SM501_USE_ALL           (0xffffffff)
 127
 128 struct sm501_initdata {
 129         struct sm501_reg_init   gpio_low;
 130         struct sm501_reg_init   gpio_high;
 131         struct sm501_reg_init   misc_timing;
 132         struct sm501_reg_init   misc_control;
 133
 134         unsigned long           devices;
 135         unsigned long           mclk;           /* non-zero to modify */
 136         unsigned long           m1xclk;         /* non-zero to modify */
 137 };
 138
 139 /* sm501_init_gpio
 140  *
 141  * default gpio settings
 142 */
 143
 144 struct sm501_init_gpio {
 145         struct sm501_reg_init   gpio_data_low;
 146         struct sm501_reg_init   gpio_data_high;
 147         struct sm501_reg_init   gpio_ddr_low;
 148         struct sm501_reg_init   gpio_ddr_high;
 149 };
 150
 151 #define SM501_FLAG_SUSPEND_OFF          (1<<4)
 152
 153 /* sm501_platdata
 154  *
 155  * This is passed with the platform device to allow the board
 156  * to control the behaviour of the SM501 driver(s) which attach
 157  * to the device.
 158  *
 159 */
 160
 161 struct sm501_platdata {
 162         struct sm501_initdata           *init;
 163         struct sm501_init_gpio          *init_gpiop;
 164         struct sm501_platdata_fb        *fb;
 165
 166         int                              flags;
 167         int                              gpio_base;
 168
 169         int     (*get_power)(struct device *dev);
 170         int     (*set_power)(struct device *dev, unsigned int on);
 171
 172         struct sm501_platdata_gpio_i2c  *gpio_i2c;
 173         unsigned int                     gpio_i2c_nr;
 174 };