Squashed 'third_party/pico-sdk/' content from commit 2062372d2
Change-Id: Ic20f199d3ed0ea8d3a6a1bbf513f875ec7500cc6
git-subtree-dir: third_party/pico-sdk
git-subtree-split: 2062372d203b372849d573f252cf7c6dc2800c0a
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/src/host/hardware_gpio/CMakeLists.txt b/src/host/hardware_gpio/CMakeLists.txt
new file mode 100644
index 0000000..1bfb078
--- /dev/null
+++ b/src/host/hardware_gpio/CMakeLists.txt
@@ -0,0 +1 @@
+pico_simple_hardware_target(gpio)
\ No newline at end of file
diff --git a/src/host/hardware_gpio/gpio.c b/src/host/hardware_gpio/gpio.c
new file mode 100644
index 0000000..1cbcbed
--- /dev/null
+++ b/src/host/hardware_gpio/gpio.c
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "hardware/gpio.h"
+
+// todo weak or replace? probably weak
+void gpio_set_function(uint gpio, enum gpio_function fn) {
+
+}
+
+void gpio_pull_up(uint gpio) {
+
+}
+
+void gpio_pull_down(uint gpio) {
+
+}
+
+void gpio_disable_pulls(uint gpio) {
+
+}
+
+void gpio_set_pulls(uint gpio, bool up, bool down) {
+
+}
+
+void gpio_set_irqover(uint gpio, uint value) {
+
+}
+
+void gpio_set_outover(uint gpio, uint value) {
+
+}
+
+void gpio_set_inover(uint gpio, uint value) {
+
+}
+
+void gpio_set_oeover(uint gpio, uint value) {
+
+}
+
+void gpio_set_input_hysteresis_enabled(uint gpio, bool enabled){
+
+}
+
+bool gpio_is_input_hysteresis_enabled(uint gpio){
+ return true;
+}
+
+void gpio_set_slew_rate(uint gpio, enum gpio_slew_rate slew){
+
+}
+
+enum gpio_slew_rate gpio_get_slew_rate(uint gpio){
+ return GPIO_SLEW_RATE_FAST;
+}
+
+void gpio_set_drive_strength(uint gpio, enum gpio_drive_strength drive){
+
+}
+
+enum gpio_drive_strength gpio_get_drive_strength(uint gpio){
+ return GPIO_DRIVE_STRENGTH_4MA;
+}
+
+
+void gpio_set_irq_enabled(uint gpio, uint32_t events, bool enable) {
+
+}
+
+void gpio_acknowledge_irq(uint gpio, uint32_t events) {
+
+}
+
+void gpio_init(uint gpio) {
+
+}
+
+PICO_WEAK_FUNCTION_DEF(gpio_get)
+
+bool PICO_WEAK_FUNCTION_IMPL_NAME(gpio_get)(uint gpio) {
+ return 0;
+}
+
+uint32_t gpio_get_all() {
+ return 0;
+}
+
+void gpio_set_mask(uint32_t mask) {
+
+}
+
+void gpio_clr_mask(uint32_t mask) {
+
+}
+
+void gpio_xor_mask(uint32_t mask) {
+
+}
+
+void gpio_put_masked(uint32_t mask, uint32_t value) {
+
+}
+
+void gpio_put_all(uint32_t value) {
+
+}
+
+void gpio_put(uint gpio, int value) {
+
+}
+
+void gpio_set_dir_out_masked(uint32_t mask) {
+
+}
+
+void gpio_set_dir_in_masked(uint32_t mask) {
+
+}
+
+void gpio_set_dir_masked(uint32_t mask, uint32_t value) {
+
+}
+
+void gpio_set_dir_all_bits(uint32_t value) {
+
+}
+
+void gpio_set_dir(uint gpio, bool out) {
+
+}
+
+void gpio_debug_pins_init() {
+
+}
+
+void gpio_set_input_enabled(uint gpio, bool enable) {
+
+}
+
+void gpio_init_mask(uint gpio_mask) {
+
+}
diff --git a/src/host/hardware_gpio/include/hardware/gpio.h b/src/host/hardware_gpio/include/hardware/gpio.h
new file mode 100644
index 0000000..b2b83a1
--- /dev/null
+++ b/src/host/hardware_gpio/include/hardware/gpio.h
@@ -0,0 +1,174 @@
+/*
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _HARDWARE_GPIO_H_
+#define _HARDWARE_GPIO_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "pico.h"
+
+enum gpio_function {
+ GPIO_FUNC_XIP = 0,
+ GPIO_FUNC_SPI = 1,
+ GPIO_FUNC_UART = 2,
+ GPIO_FUNC_I2C = 3,
+ GPIO_FUNC_PWM = 4,
+ GPIO_FUNC_SIO = 5,
+ GPIO_FUNC_PIO0 = 6,
+ GPIO_FUNC_PIO1 = 7,
+ GPIO_FUNC_GPCK = 8,
+ GPIO_FUNC_USB = 9,
+ GPIO_FUNC_NULL = 0xf,
+};
+
+enum gpio_slew_rate {
+ GPIO_SLEW_RATE_SLOW = 0, ///< Slew rate limiting enabled
+ GPIO_SLEW_RATE_FAST = 1 ///< Slew rate limiting disabled
+};
+
+enum gpio_drive_strength {
+ GPIO_DRIVE_STRENGTH_2MA = 0, ///< 2 mA nominal drive strength
+ GPIO_DRIVE_STRENGTH_4MA = 1, ///< 4 mA nominal drive strength
+ GPIO_DRIVE_STRENGTH_8MA = 2, ///< 8 mA nominal drive strength
+ GPIO_DRIVE_STRENGTH_12MA = 3 ///< 12 mA nominal drive strength
+};
+
+#define GPIO_OUT 1
+#define GPIO_IN 0
+
+#define NUM_BANK0_GPIOS 30
+
+// ----------------------------------------------------------------------------
+// Pad Controls + IO Muxing
+// ----------------------------------------------------------------------------
+// Declarations for gpio.c
+
+void gpio_set_function(uint gpio, enum gpio_function fn);
+
+enum gpio_function gpio_get_function(uint gpio);
+
+void gpio_pull_up(uint gpio);
+
+void gpio_pull_down(uint gpio);
+
+void gpio_disable_pulls(uint gpio);
+
+void gpio_set_pulls(uint gpio, bool up, bool down);
+
+void gpio_set_irqover(uint gpio, uint value);
+
+void gpio_set_outover(uint gpio, uint value);
+
+void gpio_set_inover(uint gpio, uint value);
+
+void gpio_set_oeover(uint gpio, uint value);
+
+void gpio_set_input_enabled(uint gpio, bool enable);
+
+void gpio_set_input_hysteresis_enabled(uint gpio, bool enabled);
+
+bool gpio_is_input_hysteresis_enabled(uint gpio);
+
+void gpio_set_slew_rate(uint gpio, enum gpio_slew_rate slew);
+
+enum gpio_slew_rate gpio_get_slew_rate(uint gpio);
+
+void gpio_set_drive_strength(uint gpio, enum gpio_drive_strength drive);
+
+enum gpio_drive_strength gpio_get_drive_strength(uint gpio);
+
+// Configure a GPIO for direct input/output from software
+void gpio_init(uint gpio);
+
+void gpio_init_mask(uint gpio_mask);
+
+// ----------------------------------------------------------------------------
+// Input
+// ----------------------------------------------------------------------------
+
+// Get the value of a single GPIO
+bool gpio_get(uint gpio);
+
+// Get raw value of all
+uint32_t gpio_get_all();
+
+// ----------------------------------------------------------------------------
+// Output
+// ----------------------------------------------------------------------------
+
+// Drive high every GPIO appearing in mask
+void gpio_set_mask(uint32_t mask);
+
+void gpio_clr_mask(uint32_t mask);
+
+// Toggle every GPIO appearing in mask
+void gpio_xor_mask(uint32_t mask);
+
+
+// For each 1 bit in "mask", drive that pin to the value given by
+// corresponding bit in "value", leaving other pins unchanged.
+// Since this uses the TOGL alias, it is concurrency-safe with e.g. an IRQ
+// bashing different pins from the same core.
+void gpio_put_masked(uint32_t mask, uint32_t value);
+
+// Drive all pins simultaneously
+void gpio_put_all(uint32_t value);
+
+
+// Drive a single GPIO high/low
+void gpio_put(uint gpio, int value);
+
+// ----------------------------------------------------------------------------
+// Direction
+// ----------------------------------------------------------------------------
+
+// Switch all GPIOs in "mask" to output
+void gpio_set_dir_out_masked(uint32_t mask);
+
+// Switch all GPIOs in "mask" to input
+void gpio_set_dir_in_masked(uint32_t mask);
+
+// For each 1 bit in "mask", switch that pin to the direction given by
+// corresponding bit in "value", leaving other pins unchanged.
+// E.g. gpio_set_dir_masked(0x3, 0x2); -> set pin 0 to input, pin 1 to output,
+// simultaneously.
+void gpio_set_dir_masked(uint32_t mask, uint32_t value);
+
+// Set direction of all pins simultaneously.
+// For each bit in value,
+// 1 = out
+// 0 = in
+void gpio_set_dir_all_bits(uint32_t value);
+
+// Set a single GPIO to input/output.
+// true = out
+// 0 = in
+void gpio_set_dir(uint gpio, bool out);
+
+// debugging
+#ifndef PICO_DEBUG_PIN_BASE
+#define PICO_DEBUG_PIN_BASE 19u
+#endif
+
+// note these two macros may only be used once per compilation unit
+#define CU_REGISTER_DEBUG_PINS(p, ...)
+#define CU_SELECT_DEBUG_PINS(x)
+#define DEBUG_PINS_ENABLED(p) false
+
+#define DEBUG_PINS_SET(p, v) ((void)0)
+#define DEBUG_PINS_CLR(p, v) ((void)0)
+#define DEBUG_PINS_XOR(p, v) ((void)0)
+
+void gpio_debug_pins_init();
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif