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| author | Damien George <damien.p.george@gmail.com> | 2016-02-11 11:41:58 +0000 |
|---|---|---|
| committer | Paul Sokolovsky <pfalcon@users.sourceforge.net> | 2016-03-24 11:07:41 +0200 |
| commit | 7059c8c23c85f91475a40cf9af2563df144b0f64 (patch) | |
| tree | 3add59c37ab0d4e8cceb1043bca697ff3b280ad7 /esp8266 | |
| parent | a1d072df81396349cdb949333e4aad2df1eda306 (diff) | |
| download | micropython-7059c8c23c85f91475a40cf9af2563df144b0f64.tar.gz micropython-7059c8c23c85f91475a40cf9af2563df144b0f64.zip | |
esp8266: Expose pin object as a public structure for use as C pin API.
This is an initial attempt at making a simple C pin API for writing
things like I2C drivers in C.
Diffstat (limited to 'esp8266')
| -rw-r--r-- | esp8266/modpyb.h | 9 | ||||
| -rw-r--r-- | esp8266/modpybpin.c | 16 |
2 files changed, 15 insertions, 10 deletions
diff --git a/esp8266/modpyb.h b/esp8266/modpyb.h index e4eaacbb28..095bc019b8 100644 --- a/esp8266/modpyb.h +++ b/esp8266/modpyb.h @@ -2,6 +2,15 @@ extern const mp_obj_type_t pyb_pin_type; extern const mp_obj_type_t pyb_adc_type; extern const mp_obj_type_t pyb_rtc_type; +typedef struct _pyb_pin_obj_t { + mp_obj_base_t base; + uint16_t pin_id; + uint16_t phys_port; + uint32_t periph; + uint16_t func; +} pyb_pin_obj_t; + uint mp_obj_get_pin(mp_obj_t pin_in); +pyb_pin_obj_t *mp_obj_get_pin_obj(mp_obj_t pin_in); int pin_get(uint pin); void pin_set(uint pin, int value); diff --git a/esp8266/modpybpin.c b/esp8266/modpybpin.c index 90c4a4aeba..63ba410849 100644 --- a/esp8266/modpybpin.c +++ b/esp8266/modpybpin.c @@ -44,14 +44,6 @@ // Removed in SDK 1.1.0 //#define GPIO_PULL_DOWN (2) -typedef struct _pyb_pin_obj_t { - mp_obj_base_t base; - uint16_t pin_id; - uint16_t phys_port; - uint32_t periph; - uint16_t func; -} pyb_pin_obj_t; - STATIC const pyb_pin_obj_t pyb_pin_obj[] = { {{&pyb_pin_type}, 0, 0, PERIPHS_IO_MUX_GPIO0_U, FUNC_GPIO0}, {{&pyb_pin_type}, 1, 1, PERIPHS_IO_MUX_U0TXD_U, FUNC_GPIO1}, @@ -72,12 +64,16 @@ STATIC const pyb_pin_obj_t pyb_pin_obj[] = { STATIC uint8_t pin_mode[16 + 1]; -uint mp_obj_get_pin(mp_obj_t pin_in) { +pyb_pin_obj_t *mp_obj_get_pin_obj(mp_obj_t pin_in) { if (mp_obj_get_type(pin_in) != &pyb_pin_type) { nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, "expecting a pin")); } pyb_pin_obj_t *self = pin_in; - return self->phys_port; + return self; +} + +uint mp_obj_get_pin(mp_obj_t pin_in) { + return mp_obj_get_pin_obj(pin_in)->phys_port; } int pin_get(uint pin) { |