// WIZNET5K([spi, pin_cs, pin_rst])
STATIC mp_obj_t wiznet5k_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
// check arguments
mp_arg_check_num(n_args, n_kw, 3, 3, false);
const spi_t *spi = spi_from_mp_obj(args[0]);
mp_hal_pin_obj_t cs = pin_find(args[1]);
mp_hal_pin_obj_t rst = pin_find(args[2]);
// Access the existing object, if it has been constructed with the same hardware interface
if (wiznet5k_obj.base.base.type == &mod_network_nic_type_wiznet5k) {
if (!(wiznet5k_obj.spi == spi && wiznet5k_obj.cs == cs && wiznet5k_obj.rst == rst
&& wiznet5k_obj.netif.flags != 0)) {
wiznet5k_deinit();
}
}
// Init the wiznet5k object
wiznet5k_obj.base.base.type = &mod_network_nic_type_wiznet5k;
wiznet5k_obj.base.poll_callback = wiznet5k_lwip_poll;
wiznet5k_obj.cris_state = 0;
wiznet5k_obj.spi = spi;
wiznet5k_obj.cs = cs;
wiznet5k_obj.rst = rst;
// Return wiznet5k object
return MP_OBJ_FROM_PTR(&wiznet5k_obj);
}
STATIC mp_obj_t pyb_sd_init_helper (pybsd_obj_t *self, const mp_arg_val_t *args) {
// assign the pins
mp_obj_t pins_o = args[0].u_obj;
if (pins_o != mp_const_none) {
mp_obj_t *pins;
if (pins_o == MP_OBJ_NULL) {
// use the default pins
pins = (mp_obj_t *)pyb_sd_def_pin;
} else {
mp_obj_get_array_fixed_n(pins_o, MP_ARRAY_SIZE(pyb_sd_def_pin), &pins);
}
pin_assign_pins_af (pins, MP_ARRAY_SIZE(pyb_sd_def_pin), PIN_TYPE_STD_PU, PIN_FN_SD, 0);
// save the pins clock
self->pin_clk = pin_find(pins[0]);
}
pyb_sd_hw_init (self);
if (sd_disk_init() != 0) {
mp_raise_OSError(MP_EIO);
}
// register it with the sleep module
pyb_sleep_add ((const mp_obj_t)self, (WakeUpCB_t)pyb_sd_hw_init);
return mp_const_none;
}
uint8_t pin_find_peripheral_type (const mp_obj_t pin, uint8_t fn, uint8_t unit) {
pin_obj_t *pin_o = pin_find(pin);
for (int i = 0; i < pin_o->num_afs; i++) {
if (pin_o->af_list[i].fn == fn && pin_o->af_list[i].unit == unit) {
return pin_o->af_list[i].type;
}
}
nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
}
void pin_assign_pins_af (mp_obj_t *pins, uint32_t n_pins, uint32_t pull, uint32_t fn, uint32_t unit) {
for (int i = 0; i < n_pins; i++) {
pin_free_af_from_pins(fn, unit, i);
if (pins[i] != mp_const_none) {
pin_obj_t *pin = pin_find(pins[i]);
pin_config (pin, pin_find_af_index(pin, fn, unit, i), 0, pull, -1, PIN_STRENGTH_2MA);
}
}
}
/// \classmethod \constructor(port)
/// Construct a new DAC object.
///
/// `port` can be a pin object, or an integer (1 or 2).
/// DAC(1) is on pin X5 and DAC(2) is on pin X6.
STATIC mp_obj_t pyb_dac_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
// check arguments
mp_arg_check_num(n_args, n_kw, 1, 1, false);
// get pin/channel to output on
mp_int_t dac_id;
if (MP_OBJ_IS_INT(args[0])) {
dac_id = mp_obj_get_int(args[0]);
} else {
const pin_obj_t *pin = pin_find(args[0]);
if (pin == &pin_A4) {
dac_id = 1;
} else if (pin == &pin_A5) {
dac_id = 2;
} else {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "pin %q does not have DAC capabilities", pin->name));
}
}
pyb_dac_obj_t *dac = m_new_obj(pyb_dac_obj_t);
dac->base.type = &pyb_dac_type;
uint32_t pin;
if (dac_id == 1) {
pin = GPIO_PIN_4;
dac->dac_channel = DAC_CHANNEL_1;
dac->dma_stream = DMA1_Stream5;
} else if (dac_id == 2) {
pin = GPIO_PIN_5;
dac->dac_channel = DAC_CHANNEL_2;
dac->dma_stream = DMA1_Stream6;
} else {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "DAC %d does not exist", dac_id));
}
// GPIO configuration
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.Pin = pin;
GPIO_InitStructure.Mode = GPIO_MODE_ANALOG;
GPIO_InitStructure.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);
// DAC peripheral clock
__DAC_CLK_ENABLE();
// stop anything already going on
HAL_DAC_Stop(&DAC_Handle, dac->dac_channel);
if ((dac->dac_channel == DAC_CHANNEL_1 && DAC_Handle.DMA_Handle1 != NULL)
|| (dac->dac_channel == DAC_CHANNEL_2 && DAC_Handle.DMA_Handle2 != NULL)) {
HAL_DAC_Stop_DMA(&DAC_Handle, dac->dac_channel);
}
dac->state = 0;
// return object
return dac;
}
STATIC mp_obj_t pin_make_new(mp_obj_t self_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
// Run an argument through the mapper and return the result.
pin_obj_t *pin = (pin_obj_t *)pin_find(args[0]);
mp_map_t kw_args;
mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);
pin_obj_init_helper(pin, n_args - 1, args + 1, &kw_args);
return (mp_obj_t)pin;
}
/// \classmethod \constructor(spi, pin_cs, pin_en, pin_irq)
/// Initialise the CC3000 using the given SPI bus and pins and return a CC3k object.
//
// Note: pins were originally hard-coded to:
// PYBv1.0: init(pyb.SPI(2), pyb.Pin.board.Y5, pyb.Pin.board.Y4, pyb.Pin.board.Y3)
// [SPI on Y position; Y6=B13=SCK, Y7=B14=MISO, Y8=B15=MOSI]
//
// STM32F4DISC: init(pyb.SPI(2), pyb.Pin.cpu.A15, pyb.Pin.cpu.B10, pyb.Pin.cpu.B11)
STATIC mp_obj_t cc3k_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
// check arguments
mp_arg_check_num(n_args, n_kw, 4, 4, false);
// set the pins to use
SpiInit(
spi_get_handle(args[0]),
pin_find(args[1]),
pin_find(args[2]),
pin_find(args[3])
);
// initialize and start the module
wlan_init(cc3k_callback, NULL, NULL, NULL,
ReadWlanInterruptPin, SpiResumeSpi, SpiPauseSpi, WriteWlanPin);
if (wlan_start(0) != 0) {
nlr_raise(mp_obj_new_exception_msg(
&mp_type_OSError, "Failed to init wlan module"));
}
// set connection policy. this should be called explicitly by the user
// wlan_ioctl_set_connection_policy(0, 0, 0);
// Mask out all non-required events from the CC3000
wlan_set_event_mask(HCI_EVNT_WLAN_KEEPALIVE|
HCI_EVNT_WLAN_UNSOL_INIT|
HCI_EVNT_WLAN_ASYNC_PING_REPORT|
HCI_EVNT_WLAN_ASYNC_SIMPLE_CONFIG_DONE);
cc3k_obj_t *cc3k = m_new_obj(cc3k_obj_t);
cc3k->base.type = (mp_obj_type_t*)&mod_network_nic_type_cc3k;
// register with network module
mod_network_register_nic(cc3k);
return cc3k;
}
/// \classmethod \constructor(id, ...)
/// Create a new Pin object associated with the id. If additional arguments are given,
/// they are used to initialise the pin. See `init`.
STATIC mp_obj_t pin_make_new(mp_obj_t self_in, uint n_args, uint n_kw, const mp_obj_t *args) {
mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
// Run an argument through the mapper and return the result.
const pin_obj_t *pin = pin_find(args[0]);
if (n_args > 1 || n_kw > 0) {
// pin mode given, so configure this GPIO
mp_map_t kw_args;
mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);
pin_obj_init_helper(pin, n_args - 1, args + 1, &kw_args);
}
return (mp_obj_t)pin;
}
/// \classmethod \constructor(pin)
/// Create an ADC object associated with the given pin.
/// This allows you to then read analog values on that pin.
STATIC mp_obj_t adc_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
// check number of arguments
mp_arg_check_num(n_args, n_kw, 1, 1, false);
// the argument passed is the pin
const pin_obj_t *pin = (pin_obj_t *)pin_find(args[0]);
for (int32_t idx = 0; idx < PYB_ADC_NUM_CHANNELS; idx++) {
if (pin == pyb_adc_obj[idx].pin) {
pyb_adc_obj_t *self = &pyb_adc_obj[idx];
self->base.type = &pyb_adc_type;
pybadc_init (self);
// register it with the sleep module
pybsleep_add ((const mp_obj_t)self, (WakeUpCB_t)pybadc_init);
return self;
}
}
nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments));
}
/// \classmethod \constructor(pin)
/// Create an ADC object associated with the given pin.
/// This allows you to then read analog values on that pin.
STATIC mp_obj_t adc_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
// check number of arguments
mp_arg_check_num(n_args, n_kw, 1, 1, false);
// 1st argument is the pin name
mp_obj_t pin_obj = args[0];
uint32_t channel;
if (MP_OBJ_IS_INT(pin_obj)) {
channel = adc_get_internal_channel(mp_obj_get_int(pin_obj));
} else {
const pin_obj_t *pin = pin_find(pin_obj);
if ((pin->adc_num & PIN_ADC1) == 0) {
// No ADC1 function on that pin
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "pin %q does not have ADC capabilities", pin->name));
}
channel = pin->adc_channel;
}
if (!is_adcx_channel(channel)) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "not a valid ADC Channel: %d", channel));
}
if (ADC_FIRST_GPIO_CHANNEL <= channel && channel <= ADC_LAST_GPIO_CHANNEL) {
// these channels correspond to physical GPIO ports so make sure they exist
if (pin_adc1[channel] == NULL) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
"channel %d not available on this board", channel));
}
}
pyb_obj_adc_t *o = m_new_obj(pyb_obj_adc_t);
memset(o, 0, sizeof(*o));
o->base.type = &pyb_adc_type;
o->pin_name = pin_obj;
o->channel = channel;
adc_init_single(o);
return o;
}
/// \classmethod \constructor(pin)
/// Create an ADC object associated with the given pin.
/// This allows you to then read analog values on that pin.
STATIC mp_obj_t adc_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
// check number of arguments
mp_arg_check_num(n_args, n_kw, 1, 1, false);
// 1st argument is the pin name
mp_obj_t pin_obj = args[0];
uint32_t channel;
if (MP_OBJ_IS_INT(pin_obj)) {
channel = mp_obj_get_int(pin_obj);
} else {
const pin_obj_t *pin = pin_find(pin_obj);
if ((pin->adc_num & PIN_ADC1) == 0) {
// No ADC1 function on that pin
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "pin %s does not have ADC capabilities", qstr_str(pin->name)));
}
channel = pin->adc_channel;
}
if (!IS_ADC_CHANNEL(channel)) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "not a valid ADC Channel: %d", channel));
}
if (pin_adc1[channel] == NULL) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "channel %d not available on this board", channel));
}
pyb_obj_adc_t *o = m_new_obj(pyb_obj_adc_t);
memset(o, 0, sizeof(*o));
o->base.type = &pyb_adc_type;
o->pin_name = pin_obj;
o->channel = channel;
adc_init_single(o);
return o;
}
// Set override_callback_obj to true if you want to unconditionally set the
// callback function.
uint extint_register(mp_obj_t pin_obj, uint32_t mode, uint32_t pull, mp_obj_t callback_obj, bool override_callback_obj) {
const pin_obj_t *pin = NULL;
uint v_line;
if (MP_OBJ_IS_INT(pin_obj)) {
// If an integer is passed in, then use it to identify lines 16 thru 22
// We expect lines 0 thru 15 to be passed in as a pin, so that we can
// get both the port number and line number.
v_line = mp_obj_get_int(pin_obj);
if (v_line < 16) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "ExtInt vector %d < 16, use a Pin object", v_line));
}
if (v_line >= EXTI_NUM_VECTORS) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "ExtInt vector %d >= max of %d", v_line, EXTI_NUM_VECTORS));
}
} else {
pin = pin_find(pin_obj);
v_line = pin->pin;
}
if (mode != GPIO_MODE_IT_RISING &&
mode != GPIO_MODE_IT_FALLING &&
mode != GPIO_MODE_IT_RISING_FALLING &&
mode != GPIO_MODE_EVT_RISING &&
mode != GPIO_MODE_EVT_FALLING &&
mode != GPIO_MODE_EVT_RISING_FALLING) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "invalid ExtInt Mode: %d", mode));
}
if (pull != GPIO_NOPULL &&
pull != GPIO_PULLUP &&
pull != GPIO_PULLDOWN) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "invalid ExtInt Pull: %d", pull));
}
mp_obj_t *cb = &MP_STATE_PORT(pyb_extint_callback)[v_line];
if (!override_callback_obj && *cb != mp_const_none && callback_obj != mp_const_none) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "ExtInt vector %d is already in use", v_line));
}
// We need to update callback atomically, so we disable the line
// before we update anything.
extint_disable(v_line);
*cb = callback_obj;
pyb_extint_mode[v_line] = (mode & 0x00010000) ? // GPIO_MODE_IT == 0x00010000
EXTI_Mode_Interrupt : EXTI_Mode_Event;
if (*cb != mp_const_none) {
mp_hal_gpio_clock_enable(pin->gpio);
GPIO_InitTypeDef exti;
exti.Pin = pin->pin_mask;
exti.Mode = mode;
exti.Pull = pull;
exti.Speed = GPIO_SPEED_FAST;
HAL_GPIO_Init(pin->gpio, &exti);
// Calling HAL_GPIO_Init does an implicit extint_enable
/* Enable and set NVIC Interrupt to the lowest priority */
HAL_NVIC_SetPriority(nvic_irq_channel[v_line], IRQ_PRI_EXTINT, IRQ_SUBPRI_EXTINT);
HAL_NVIC_EnableIRQ(nvic_irq_channel[v_line]);
}
return v_line;
}
