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 /* 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 };