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zephyr/machine_i2c: Update to support new C-level I2C API.

This commit is contained in:
Damien George 2019-05-08 18:20:19 +10:00
parent bb29bde102
commit 647b27d028
1 changed files with 5 additions and 13 deletions
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18
ports/zephyr/machine_i2c.c
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@ -92,7 +92,7 @@ mp_obj_t machine_hard_i2c_make_new(const mp_obj_type_t *type, size_t n_args, siz
return MP_OBJ_FROM_PTR(self);
}
STATIC int machine_hard_i2c_transfer(mp_obj_base_t *self_in, uint16_t addr, uint8_t *buf, size_t len, bool stop, bool read) {
STATIC int machine_hard_i2c_transfer_single(mp_obj_base_t *self_in, uint16_t addr, size_t len, uint8_t *buf, unsigned int flags) {
machine_hard_i2c_obj_t *self = (machine_hard_i2c_obj_t *)self_in;
struct i2c_msg msg;
int ret;
@ -101,7 +101,7 @@ STATIC int machine_hard_i2c_transfer(mp_obj_base_t *self_in, uint16_t addr, uint
msg.len = len;
msg.flags = 0;
if (read) {
if (flags & MP_MACHINE_I2C_FLAG_READ) {
msg.flags |= I2C_MSG_READ;
} else {
msg.flags |= I2C_MSG_WRITE;
@ -111,7 +111,7 @@ STATIC int machine_hard_i2c_transfer(mp_obj_base_t *self_in, uint16_t addr, uint
msg.flags |= I2C_MSG_RESTART;
}
if (stop) {
if (flags & MP_MACHINE_I2C_FLAG_STOP) {
msg.flags |= I2C_MSG_STOP;
self->restart = false;
} else {
@ -122,17 +122,9 @@ STATIC int machine_hard_i2c_transfer(mp_obj_base_t *self_in, uint16_t addr, uint
return (ret < 0) ? -MP_EIO : len;
}
STATIC int machine_hard_i2c_readfrom(mp_obj_base_t *self_in, uint16_t addr, uint8_t *dest, size_t len, bool stop) {
return machine_hard_i2c_transfer(self_in, addr, dest, len, stop, true);
}
STATIC int machine_hard_i2c_writeto(mp_obj_base_t *self_in, uint16_t addr, const uint8_t *src, size_t len, bool stop) {
return machine_hard_i2c_transfer(self_in, addr, (uint8_t*)src, len, stop, false);
}
STATIC const mp_machine_i2c_p_t machine_hard_i2c_p = {
.readfrom = machine_hard_i2c_readfrom,
.writeto = machine_hard_i2c_writeto,
.transfer = mp_machine_i2c_transfer_adaptor,
.transfer_single = machine_hard_i2c_transfer_single,
};
STATIC const mp_obj_type_t machine_hard_i2c_type = {