kernel/drivers/staging/sm750fb/ddk750_chip.h

   1 #ifndef DDK750_CHIP_H__
   2 #define DDK750_CHIP_H__
   3 #define DEFAULT_INPUT_CLOCK 14318181 /* Default reference clock */
   4 #ifndef SM750LE_REVISION_ID
   5 #define SM750LE_REVISION_ID ((unsigned char)0xfe)
   6 #endif
   7
   8 #include <linux/io.h>
   9
  10 /* This is all the chips recognized by this library */
  11 typedef enum _logical_chip_type_t {
  12         SM_UNKNOWN,
  13         SM718,
  14         SM750,
  15         SM750LE,
  16 }
  17 logical_chip_type_t;
  18
  19 typedef enum _clock_type_t {
  20         MXCLK_PLL,
  21         PRIMARY_PLL,
  22         SECONDARY_PLL,
  23         VGA0_PLL,
  24         VGA1_PLL,
  25 }
  26 clock_type_t;
  27
  28 typedef struct _pll_value_t {
  29         clock_type_t clockType;
  30         unsigned long inputFreq; /* Input clock frequency to the PLL */
  31
  32         /* Use this when clockType = PANEL_PLL */
  33         unsigned long M;
  34         unsigned long N;
  35         unsigned long OD;
  36         unsigned long POD;
  37 }
  38 pll_value_t;
  39
  40 /* input struct to initChipParam() function */
  41 typedef struct _initchip_param_t {
  42         unsigned short powerMode;    /* Use power mode 0 or 1 */
  43         unsigned short chipClock;    /**
  44                                       * Speed of main chip clock in MHz unit
  45                                       * 0 = keep the current clock setting
  46                                       * Others = the new main chip clock
  47                                       */
  48         unsigned short memClock;     /**
  49                                       * Speed of memory clock in MHz unit
  50                                       * 0 = keep the current clock setting
  51                                       * Others = the new memory clock
  52                                       */
  53         unsigned short masterClock;  /**
  54                                       * Speed of master clock in MHz unit
  55                                       * 0 = keep the current clock setting
  56                                       * Others = the new master clock
  57                                       */
  58         unsigned short setAllEngOff; /**
  59                                       * 0 = leave all engine state untouched.
  60                                       * 1 = make sure they are off: 2D, Overlay,
  61                                       * video alpha, alpha, hardware cursors
  62                                       */
  63         unsigned char resetMemory;   /**
  64                                       * 0 = Do not reset the memory controller
  65                                       * 1 = Reset the memory controller
  66                                       */
  67
  68         /* More initialization parameter can be added if needed */
  69 }
  70 initchip_param_t;
  71
  72 logical_chip_type_t getChipType(void);
  73 unsigned int calcPllValue(unsigned int request, pll_value_t *pll);
  74 unsigned int formatPllReg(pll_value_t *pPLL);
  75 void ddk750_set_mmio(void __iomem *, unsigned short, char);
  76 unsigned int ddk750_getVMSize(void);
  77 int ddk750_initHw(initchip_param_t *);
  78
  79 #endif