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adafruit_bus_device: Don't transmit STOP condition in write_then_readinto 

Closes #3795
This commit is contained in:
Jeff Epler 2020-12-18 11:13:28 -06:00
parent 8f9cd7075e
commit 6c4df5a8b4
3 changed files with 7 additions and 7 deletions
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8
shared-bindings/adafruit_bus_device/I2CDevice.c
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@ -163,7 +163,7 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_KW(adafruit_bus_device_i2cdevice_readinto_obj, 2,
//| """
//| ...
//|
STATIC void write(adafruit_bus_device_i2cdevice_obj_t *self, mp_obj_t buffer, int32_t start, mp_int_t end) {
STATIC void write(adafruit_bus_device_i2cdevice_obj_t *self, mp_obj_t buffer, int32_t start, mp_int_t end, bool transmit_stop_bit) {
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(buffer, &bufinfo, MP_BUFFER_READ);
@ -173,7 +173,7 @@ STATIC void write(adafruit_bus_device_i2cdevice_obj_t *self, mp_obj_t buffer, in
mp_raise_ValueError(translate("Buffer must be at least length 1"));
}
uint8_t status = common_hal_adafruit_bus_device_i2cdevice_write(MP_OBJ_TO_PTR(self), ((uint8_t*)bufinfo.buf) + start, length);
uint8_t status = common_hal_adafruit_bus_device_i2cdevice_write(MP_OBJ_TO_PTR(self), ((uint8_t*)bufinfo.buf) + start, length, transmit_stop_bit);
if (status != 0) {
mp_raise_OSError(status);
}
@ -191,7 +191,7 @@ STATIC mp_obj_t adafruit_bus_device_i2cdevice_write(size_t n_args, const mp_obj_
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
write(self, args[ARG_buffer].u_obj, args[ARG_start].u_int, args[ARG_end].u_int);
write(self, args[ARG_buffer].u_obj, args[ARG_start].u_int, args[ARG_end].u_int, true);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(adafruit_bus_device_i2cdevice_write_obj, 2, adafruit_bus_device_i2cdevice_write);
@ -233,7 +233,7 @@ STATIC mp_obj_t adafruit_bus_device_i2cdevice_write_then_readinto(size_t n_args,
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
write(self, args[ARG_out_buffer].u_obj, args[ARG_out_start].u_int, args[ARG_out_end].u_int);
write(self, args[ARG_out_buffer].u_obj, args[ARG_out_start].u_int, args[ARG_out_end].u_int, false);
readinto(self, args[ARG_in_buffer].u_obj, args[ARG_in_start].u_int, args[ARG_in_end].u_int);

2
shared-bindings/adafruit_bus_device/I2CDevice.h
View File

@ -45,7 +45,7 @@ extern const mp_obj_type_t adafruit_bus_device_i2cdevice_type;
// Initializes the hardware peripheral.
extern void common_hal_adafruit_bus_device_i2cdevice_construct(adafruit_bus_device_i2cdevice_obj_t *self, busio_i2c_obj_t *i2c, uint8_t device_address);
extern uint8_t common_hal_adafruit_bus_device_i2cdevice_readinto(adafruit_bus_device_i2cdevice_obj_t *self, mp_obj_t buffer, size_t length);
extern uint8_t common_hal_adafruit_bus_device_i2cdevice_write(adafruit_bus_device_i2cdevice_obj_t *self, mp_obj_t buffer, size_t length);
extern uint8_t common_hal_adafruit_bus_device_i2cdevice_write(adafruit_bus_device_i2cdevice_obj_t *self, mp_obj_t buffer, size_t length, bool transmit_stop_bit);
extern void common_hal_adafruit_bus_device_i2cdevice_lock(adafruit_bus_device_i2cdevice_obj_t *self);
extern void common_hal_adafruit_bus_device_i2cdevice_unlock(adafruit_bus_device_i2cdevice_obj_t *self);
extern void common_hal_adafruit_bus_device_i2cdevice_probe_for_device(adafruit_bus_device_i2cdevice_obj_t *self);

4
shared-module/adafruit_bus_device/I2CDevice.c
View File

@ -57,8 +57,8 @@ uint8_t common_hal_adafruit_bus_device_i2cdevice_readinto(adafruit_bus_device_i2
return common_hal_busio_i2c_read(self->i2c, self->device_address, buffer, length);
}
uint8_t common_hal_adafruit_bus_device_i2cdevice_write(adafruit_bus_device_i2cdevice_obj_t *self, mp_obj_t buffer, size_t length) {
return common_hal_busio_i2c_write(self->i2c, self->device_address, buffer, length, true);
uint8_t common_hal_adafruit_bus_device_i2cdevice_write(adafruit_bus_device_i2cdevice_obj_t *self, mp_obj_t buffer, size_t length, bool transmit_stop_bit) {
return common_hal_busio_i2c_write(self->i2c, self->device_address, buffer, length, transmit_stop_bit);
}
void common_hal_adafruit_bus_device_i2cdevice_probe_for_device(adafruit_bus_device_i2cdevice_obj_t *self) {