Commit Graph

8 Commits

Author SHA1 Message Date
Jim Mussared 0e7bfc88c6 all: Use mp_obj_malloc everywhere it's applicable.
This replaces occurences of

    foo_t *foo = m_new_obj(foo_t);
    foo->base.type = &foo_type;

with

    foo_t *foo = mp_obj_malloc(foo_t, &foo_type);

Excludes any places where base is a sub-field or when new0/memset is used.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-05-03 22:28:14 +10:00
Damien George 6804a8a891 stm32/machine_i2s: Fix 16-bit stereo i2s_frame_map.
Signed-off-by: Damien George <damien@micropython.org>
2022-03-29 11:44:08 +11:00
Damien George 2a91c8a888 stm32/machine_i2s: Allow I2S.deinit to be called multiple times.
In particular, it is called by the constructor if the instance already
exists.  So if the previous instance was deinit'd then it will be deinit'd
a second time.

Signed-off-by: Damien George <damien@micropython.org>
2022-03-29 11:44:08 +11:00
Damien George c90dfba04c stm32/machine_i2s: Set FullDuplexMode to disabled on F4.
Signed-off-by: Damien George <damien@micropython.org>
2022-03-29 11:44:08 +11:00
MikeTeachman 6d5296e65e stm32,esp32: In machine_i2s, make object reference arrays root pointers.
This change eliminates the risk of the IRQ callback accessing invalid data.
Discussed here:
https://github.com/micropython/micropython/pull/7183#discussion_r660209875

Signed-off-by: Mike Teachman <mike.teachman@gmail.com>
2021-11-13 12:22:42 +11:00
MikeTeachman 0be3b91f11 stm32,esp32: In machine_i2s, send null samples in underflow situations.
Eliminate noise data from being sent to the I2S peripheral when the
transmitted sample stream is stopped.

Signed-off-by: Mike Teachman <mike.teachman@gmail.com>
2021-11-12 16:50:15 +11:00
David Lechner 86371781e9 tools/uncrustify: Force 1 newline at end of file.
To keep things neat and tidy, we ensure that each file has 1 and only 1
newline at the end of each file.

Signed-off-by: David Lechner <david@pybricks.com>
2021-08-31 13:14:45 +10:00
Mike Teachman 8a5bfe44a5 esp32,stm32: Add new machine.I2S class for I2S protocol support.
This commit adds I2S protocol support for the esp32 and stm32 ports, via
a new machine.I2S class.  It builds on the stm32 work of blmorris, #1361.

Features include:
- a consistent I2S API across the esp32 and stm32 ports
- I2S configurations supported:
  - master transmit and master receive
  - 16-bit and 32-bit sample sizes
  - mono and stereo formats
  - sampling frequency
  - 3 modes of operation:
    - blocking
    - non-blocking with callback
    - uasyncio
  - internal ring buffer size can be tuned
- documentation for Pyboards and esp32-based boards
- tested on the following development boards:
  - Pyboard D SF2W
  - Pyboard V1.1
  - ESP32 with SPIRAM
  - ESP32

Signed-off-by: Mike Teachman <mike.teachman@gmail.com>
2021-07-05 23:42:25 +10:00