device.c

<B>SMSC USB2.0 Flash硬盘驱动源码</B>

  0,                    // alternate interface
  2,                    // number of endpoints
  0x08,                 // usb interface class: mass storage
  0x06,                 // usb interface subclass: scsi
  0x50,                 // interface protocol: BOT (bulk only transport)
  0x00,                 // interface string index
  // endpoint descriptor: bulk out
  k_usb_ndpdscrsz,      // length of descriptor in bytes
  0x05,                 // descriptor type: endpoint
  0x02,                 // endpoint 2, out
  0x02,                 // bulk
  k_fs_maxpktsz,        // max packet size lo
  0x00,                 // max packet size hi
  0x01,                 // polling interval
  // endpoint descriptor: bulk in
  k_usb_ndpdscrsz,      // length of descriptor in bytes
  0x05,                 // descriptor type: endpoint
  0x82,                 // endpoint 2, in
  0x02,                 // bulk
  k_fs_maxpktsz,        // max packet size lo
  0x00,                 // max packet size hi
  0x00,                 // polling interval
  // dfu functional descriptor
  k_dfu_funcdscrsz,     // length of descriptor in bytes
  k_dfu_dscr_typ_functional,  // dfu functional descriptor type
  0x07,                 // manifest, upload, dnload tolerant
  _l(k_dfu_detach_timeout),  // detach timeout lo
  _h(k_dfu_detach_timeout),  // detach timeout hi
  _l(k_dfu_max_xfer_sz),  // max transfer size lo
  _h(k_dfu_max_xfer_sz) // max transfer size hi
};

//------------------------------------------------------------------------------
// high speed other speed configuration descriptor
uint8 code g_hs_oscfg_dscr[] =
{
  k_usb_cfgdscrsz,      // length of descriptor in bytes
  k_usb_dscr_typ_osconfig,  // descriptor type: other speed configuration
  k_usb_cfgdscrsz +
  k_usb_ifcdscrsz +
  k_usb_ndpdscrsz +
#ifdef k_append_dfu_dscr
  k_usb_ndpdscrsz +
  k_dfu_funcdscrsz,     // total length lo
#else
  k_usb_ndpdscrsz,      // total length lo
#endif
  0,                    // total length hi
  1,                    // number of interfaces
  0x01,                 // configuration value
  0x00,                 // index of string descriptor
  0x80,                 // attributes: bus powered, no remote wakeup
//  0xFA,                           // max power: 500ma
  0x31,                 // max power: 98ma
  // interface descriptor: BOT mass storage
  k_usb_ifcdscrsz,      // length of descriptor in bytes
  k_usb_dscr_typ_interface,  // descriptor type: interface
  0,                    // interface number
  0,                    // alternate interface
  2,                    // number of endpoints
  0x08,                 // usb interface class: mass storage
  0x06,                 // usb interface subclass: scsi
  0x50,                 // interface protocol: BOT (bulk only transport)
  0x00,                 // interface string index
  // endpoint descriptor: bulk out
  k_usb_ndpdscrsz,      // length of descriptor in bytes
  0x05,                 // descriptor type: endpoint
  0x02,                 // endpoint 2, out
  0x02,                 // bulk
  _l(k_hs_maxpktsz),    // max packet size lo
  _h(k_hs_maxpktsz),    // max packet size hi
  0x01,                 // polling interval
  // endpoint descriptor: bulk in
  k_usb_ndpdscrsz,      // length of descriptor in bytes
  0x05,                 // descriptor type: endpoint
  0x82,                 // endpoint 2, in
  0x02,                 // bulk
  _l(k_hs_maxpktsz),    // max packet size lo
  _h(k_hs_maxpktsz),    // max packet size hi
  0x00,                 // polling interval
  // dfu functional descriptor
  k_dfu_funcdscrsz,     // length of descriptor in bytes
  k_dfu_dscr_typ_functional,  // dfu functional descriptor type
  0x07,                 // manifest, upload, dnload tolerant
  _l(k_dfu_detach_timeout),  // detach timeout lo
  _h(k_dfu_detach_timeout),  // detach timeout hi
  _l(k_dfu_max_xfer_sz),  // max transfer size lo
  _h(k_dfu_max_xfer_sz) // max transfer size hi
};

//------------------------------------------------------------------------------
// globals
uint8 g_ix_dev_thread;
#define g_ix_mscbot_thread g_ix_dev_thread
#define k_counts_per_sec 100



//------------------------------------------------------------------------------
// nvstore ghost values
xdata uint8 g_inq_vid[k_sz_inq_vid];
xdata uint8 g_inq_pid_hdr[k_sz_inq_pid_hdr];


//variables to store these custom values
uint8 g_blink_interval;
static uint8 _blink_counter;
//just a temp storage so that we will remember the value
xdata uint8 g_nvstore_post_access_blink_secs;
uint8 g_post_access_blink_secs;  //in seconds
bit g_activity_led_idle_bright = k_true;
static uint8 _seconds_counter;

// attribute & global attribute flags
uint8 xdata g_dev_attr_lo;
// uint8 xdata g_dev_attr_hl;
// uint8 xdata g_dev_attr_lh;
// uint8 xdata g_dev_attr_hi;

// locals
static bit _nvstore_data_valid;
static bit _nvstore_insert_vidpid;
static bit _nvstore_insert_bmattrib_and_maxpwr;
static bit _serial_number_valid;
// cannot be located in k_ram_base to k_ram_base+k_flash_sector_sz range.
static xdata uint8  _nvstore_ix _at_ 0x4000;
static xdata uint16 _nvstore_sz _at_ 0x4001;

static void dev_sd_poller(void) reentrant;
#define k_sd_poll_interval 65000
static xdata uint16 _sd_poll_counter = k_sd_poll_interval;

//------------------------------------------------------------------------------
// must store a copy of config so it can be checked after the usbrst arrives
// since on the 20x family the configuration is cleared by hardware.
static uint8 _most_recent_config = 0;

//------------------------------------------------------------------------------
// Name:
//
// Declaration:
//
// Purpose:
//
// Arguments:
//
// Return:
//   None.
//
// Notes:
//   It is safe to call this function from interrupt handlers.
//
// Since:
//   fmc.10 ver .97
//------------------------------------------------------------------------------
void dev_indicate_bus_speed() reentrant
{
  // be sure to validate the nvstore before calling this
  if (g_dev_attr_lo & kbm_attr_lo_gpio5_as_sd_insert)
  {
    gpio_bit_is_input(5);
    return;
  }
  gpio_bit_is_output(5);
  if (sie_is_high_speed())
    gpio_setbit(5);
  else
    gpio_clrbit(5);
}

// these functions must be callable from interupt service routines
#pragma NOAREGS
//------------------------------------------------------------------------------
// Name:
//
// Declaration:
//
// Purpose:
//
// Arguments:
//
// Return:
//   None.
//
// Notes:
//   It is safe to call this function from interrupt handlers.
//   Call during initialization so the direction bits will be correct.
//
// Since:
//   fmc.10 ver .97
//------------------------------------------------------------------------------
void dev_turn_off_activity_indicator() reentrant
{
  #ifdef k_mcu_97210
  gpio_bit_is_output(0);
  #endif

  #ifdef k_mcu_97211
  gpio_bit_is_output(0);
  gpio_bit_is_output(1);
  #endif

  #ifdef k_mcu_97223
  gpio_bit_is_output(1);
  #endif

  #ifdef k_mcu_97242
  gpio_bit_is_output(1);
  #endif



  // no activity, return the led to its idle state as defined in the nvstore
  if (g_activity_led_idle_bright)
  {
    // turn on the led
    #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                  // idle dim
  {
    // turn off the led
    #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
  }
}

//------------------------------------------------------------------------------
// Name:
//
// Declaration:
//
// Purpose:
//
// Arguments:
//
// Return:
//   None.
//
// Notes:
//   It is safe to call this function from interrupt handlers.
//
// Since:
//   fmc.10 ver .97
//------------------------------------------------------------------------------
void dev_toggle_activity_indicator() reentrant
{
  #ifdef k_mcu_97210
  gpio_togglebit(0);
  #endif

  #ifdef k_mcu_97211
  gpio_togglebit(0);
  gpio_togglebit(1);
  #endif

  #ifdef k_mcu_97223
  gpio_togglebit(1);
  #endif

  #ifdef k_mcu_97242
  gpio_togglebit(1);
  #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, dev, 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
  }