device.c

U盘控制器USB97C223的固件代码,对2kPAGE NAND FLASH 有很好的支持.

// Notes:
//   It is safe to call this function from interrupt handlers.
//
// Since:
//   
//------------------------------------------------------------------------------
void dev_common_media_led_on() reentrant using 1
{
  //turn on activity LED if there is any media present and the
  //common media led attribute is set.
  if (g_dev_attr_hl & kbm_attr_hl_gpio1_common_led)
  {
    if ((_mcu_register_rd(x_crd_ps) & (kbm_crd_ps_cf  | 
                                        kbm_crd_ps_sm  |    
                                        kbm_crd_ps_ms  |    
                                        kbm_crd_ps_mmc |    
                                        kbm_crd_ps_sd  )))
    {
      #ifdef k_mcu_97223
      gpio_setbit(1);
      #endif
      #ifdef k_mcu_97210
      gpio_setbit(0);
      #endif
    }
  }
}
//------------------------------------------------------------------------------
// Name: dev_common_media_led_off
//
// Declaration: void dev_common_media_led_off() reentrant using 1
//
// Purpose: turns off GPIO1(USB97C223)/GPIO0(USB97C210) if common media LED
//          attribute bit is set
//
// Arguments:
//   None.
//
// Return:
//   None.
//
// Notes:
//   It is safe to call this function from interrupt handlers.
//
// Since:
//   
//------------------------------------------------------------------------------
void dev_common_media_led_off() reentrant using 1
{
  //turn off activity LED if there is any media present and the
  //common media led attribute is set.
  if (g_dev_attr_hl & kbm_attr_hl_gpio1_common_led)
  {
    if (!(_mcu_register_rd(x_crd_ps) & (kbm_crd_ps_cf  |    
                                        kbm_crd_ps_sm  |    
                                        kbm_crd_ps_ms  |    
                                        kbm_crd_ps_mmc |    
                                        kbm_crd_ps_sd  )))
    {
      #ifdef k_mcu_97223
      gpio_clrbit(1);
      #endif
      #ifdef k_mcu_97210
      gpio_clrbit(0);
      #endif
    }
  }
}
#pragma AREGS
//------------------------------------------------------------------------------
// Name:
//
// Declaration:
//
// Purpose:
//
// Arguments:
//
// Return:
//   None.
//
// Notes:
//
// Since:
//   fmc.10 ver .97
//------------------------------------------------------------------------------
void dev_gpio_power_down() reentrant
{
  // turn off all power to cards, indicator leds, etc
  if (g_dev_attr_lo & kbm_attr_lo_activity_led_gpio_hi_on_spd)
  {
    trace0(0, pwr, 0, "setting the activity led gpio");
    //drive the gpio high
    #ifdef k_mcu_97210
    gpio_setbit(0);
    #endif
    #ifdef k_mcu_97211
    gpio_setbit(0);
    gpio_setbit(1);
    #endif
    #ifdef k_mcu_97223
    gpio_setbit(1);
    #endif
    #ifdef k_mcu_97242
    gpio_setbit(1);
    #endif
  }
  else
  {
    trace0(0, dev, 0, "clearing the activity led gpio");
    //drive the gpio low
    #ifdef k_mcu_97210
    gpio_clrbit(0);
    #endif
    #ifdef k_mcu_97211
    gpio_clrbit(0);
    gpio_clrbit(1);
    #endif
    #ifdef k_mcu_97223
    gpio_clrbit(1);
    #endif
    #ifdef k_mcu_97242
    gpio_clrbit(1);
    #endif
  }
  gpio_clrbit(5);
  _mcu_register_set_bits(x_gpiob_out, kbm_gpio8 |kbm_gpio9 |kbm_gpio10 |kbm_gpio11 |kbm_gpio12 |kbm_gpio13 |kbm_gpio14 |kbm_gpio15);
  #ifdef k_pfm_led
  // turn off the activity/inserted LEDs
  _mcu_register_clr_bits(x_gpiob_out, kbm_gpio12 |kbm_gpio13 |kbm_gpio14 |kbm_gpio15);
  #endif
}
//+-----------------------------------------------------------------------------
// Name:
//   dev_exception
//
// Declaration:
//   void dev_exception(void);
//
// Purpose:
//   Hard error.  Log message to trace fifo and halt.
//
// Arguments:
//   None.
//
// Return:
//   Does not return.No return value.
//
// Since:
//   fmc-1.0
//------------------------------------------------------------------------------
void dev_exception(uint16 ec) reentrant
{
  ec=ec;                          // keep compiler happy for release builds
  TRACE0(1, stk, 0, "** fatal exception **");
  TRACE1(2, stk, 0, "  code:  %04x", ec);
  TRACE1(3, stk, 0, "  thd:   %d", g_tid);
  thread_halt();
}
//------------------------------------------------------------------------------
// Declaration:
//   uint8 dev_rd_most_recent_config(void);
//
// Purpose:
//   Report the most recent value set by a "set_configuration" request.
//
// Arguments:
//   None.
//
// Return:
//   A uint8 representing the most recent usb configuration value.
//------------------------------------------------------------------------------
uint8 dev_rd_most_recent_config() reentrant
{
  return _most_recent_config;
}
//------------------------------------------------------------------------------
// Declaration:
//   void dev_wr_most_recent_config(uint8 cfg);
//
// Purpose:
//   Allow interface managers to clear it before rebooting.
//
// Arguments:
//   None.
//
// Return:
//   A uint8 representing the most recent usb configuration value.
//------------------------------------------------------------------------------
void dev_wr_most_recent_config(uint8 cfg) reentrant
{
  _most_recent_config = cfg;
}
//+-----------------------------------------------------------------------------
// Name:
//   dev_initialize
//
// Declaration:
//   void dev_initialize(void);
//
// Purpose:
//   Called once on POR.  initialize device hardware.
//
// Arguments:
//   None.
//
// Return:
//   None.
//
// Since:
//   fmc-1.0
//------------------------------------------------------------------------------
static void dev_initialize(void) reentrant;
static void dev_initialize() reentrant
{
  trace0(0, dev, 1, "dev_initialize()");
  #ifdef k_mcu_97201
  // setup ATA control register.  clr muxen to select ATA interface.
  _mcu_register_set_bits(x_ata_ctl, kbm_ata_ctl_out_control);
  _mcu_register_clr_bits(x_ata_ctl, kbm_ata_ctl_muxen);
  #endif
  #ifdef k_20x_family
  // initialize test register so proper phy will be controlled
  #ifdef k_rev_c_klsi_phy
  XBYTE[0x3F10] = 0x01;           // rev C klsi phy
  #else
  XBYTE[0x3F10] = 0x00;           // rev A klsi phy
  #endif
  #endif
}
//+-----------------------------------------------------------------------------
// Name:
//   dev_power_up
//
// Declaration:
//   void dev_power_up(void);
//
// Purpose:
//   Called on set-config(1), and resume if configuration is non-zero.
//   Power on the flash media sockets as appropriate.
//
// Arguments:
//   None.
//
// Return:
//   None.
//
// Since:
//   fmc-1.0
//------------------------------------------------------------------------------
static void dev_power_up(void) reentrant;
static void dev_power_up() reentrant
{
  uint8 ps;
  trace0(0, pwr, 1, "dev_power_up()");
  dev_indicate_bus_speed();
  // begin the boot sequence proper
  //if 20X family we are configured run from crystal oscillator now
  #ifdef k_20x_f