Commit graph

7 commits

Author SHA1 Message Date
Leandro Pereira
5f22dab17a esp32: Prefix ROM routines with esp32_rom_
Also provide their prototypes in `soc.h`.  This should help
readability, since some ROM functions, with their names as provided by
Espressif, have sometimes the same prefix as Zephyr APIs.

Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2017-10-09 20:53:22 -04:00
Leandro Pereira
095424c416 drivers: gpio: esp32: Configure GPIO drive strength
Configuring an open drain driver is required by the I2C driver,
but the GPIO driver didn't support setting the drive strength.

Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2017-10-09 20:53:22 -04:00
Leandro Pereira
fd25931228 drivers: gpio: esp32: Use PIN_FUNC_GPIO definition from ESP-IDF
PINMUX_FUNC_A is set to 0, which coincides with the GPIO function in
many of the ESP32 pins.  Use PIN_FUNC_GPIO by default inside the
GPIO driver, however, so the correct function is always selected.

Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2017-10-09 20:53:22 -04:00
Leandro Pereira
3d48ce8011 drivers: gpio: esp32: Properly convert interrupt triggering mode
Masks for level- and edge-triggering levels are 0, so the following
check will be always true:

    if ((flags & GPIO_INT_ACTIVE_LOW) == GPIO_INT_ACTIVE_LOW)

Invert the evaluation order, by checking the masks that are not 0
first.

Jira: ZEP-2557
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2017-08-23 10:28:59 -04:00
Leandro Pereira
b4bfdaa31b drivers: gpio: esp32: Declare data struct only for enabled ports
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2017-08-23 10:28:59 -04:00
Leandro Pereira
d52de29fba esp32: Fix redefinition of BIT() macro
Esp-idf defines the BIT macro that is also defined in Zephyr's
misc/util.h.  Fix the issue by including the esp-idf headers first, so
that a check in util.h won't redefine the macro if it's already
defined.

Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2017-08-19 07:50:18 -04:00
Leandro Pereira
c0c79a8041 drivers: gpio: esp32: Add ESP32 GPIO driver
This provides basic GPIO support, with interrupts, and the ability to
read and write to ports on a pin-by-pin basis.

Jira: ZEP-2286
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2017-08-09 12:26:14 -07:00