LXR linux/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
  21extern int sm501_unit_power(struct device *dev,
  22                            unsigned int unit, unsigned int to);
  23
  24extern unsigned long sm501_set_clock(struct device *dev,
  25                                     int clksrc, unsigned long freq);
  26
  27extern 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
  35extern 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
  44extern 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
  61struct 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
  68enum 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
  82struct 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
  96struct 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
 110struct 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
 128struct 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
 144struct 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
 161struct 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};
 175
 176#if defined(CONFIG_PPC32)
 177#define smc501_readl(addr)              ioread32be((addr))
 178#define smc501_writel(val, addr)        iowrite32be((val), (addr))
 179#else
 180#define smc501_readl(addr)              readl(addr)
 181#define smc501_writel(val, addr)        writel(val, addr)
 182#endif
 183