coil: remove ioexpander

This code uses coil terms we're removing, but we don't use it in
platform/cr50. Remove the code instead of replacing the terms.

BUG=b:175244613
TEST=make buildall -j

Change-Id: Ia5c02c4ba1f81f68a6ab03b9b380143ad8e85330
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2613446
Reviewed-by: Namyoon Woo <namyoon@chromium.org>

4 files changed, 0 insertions, 269 deletions

diff --git a/include/gpio.h b/include/gpio.h
index e1957813e0..d6fc76cec7 100644
--- a/include/gpio.h
+++ b/include/gpio.h
@@ -235,25 +235,6 @@ int gpio_get_default_flags(enum gpio_signal signal);
 void gpio_set_level(enum gpio_signal signal, int value);
 
 /**
- * Set the value of a signal and log to the console.
- *
- * @param channel	Output channel
- * @param signal	Signal to set
- * @param value		New value for signal (0 = low, 1 = high)
- */
-void gpio_set_level_verbose(enum console_channel channel,
-			    enum gpio_signal signal, int value);
-
-/**
- * Set the value of a signal that could be either a local GPIO or an IO
- * expander GPIO.
- *
- * @param signal	GPIO_* or IOEX_* signal to set
- * @param value		New value for signal (0 = low, 1 = high)
- */
-void gpio_or_ioex_set_level(int signal, int value);
-
-/**
  * Reset the GPIO flags and alternate function state
  *
  * This returns the GPIO to it's default state of being a GPIO (not
@@ -339,15 +320,6 @@ void gpio_set_alternate_function(uint32_t port, uint32_t mask,
 int gpio_power_down_module(enum module_id id);
 #endif
 
-/*
- * Check if signal is a valid GPIO signal, and not IO expander (enum
- * ioex_signal) or eSPI virtual wire (enum espi_vw_signal).
- *
- * @param signal	GPIO or IOEX or VW signal
- * @return		1 if signal is GPIO else return 0
- */
-int signal_is_gpio(int signal);
-
 /**
  * Configure a GPIO as wake source on a given condition and enable it, or
  * disable it.
diff --git a/include/gpio_list.h b/include/gpio_list.h
index 37d49a6f97..581310f646 100644
--- a/include/gpio_list.h
+++ b/include/gpio_list.h
@@ -63,68 +63,3 @@ const int gpio_ih_count = ARRAY_SIZE(gpio_irq_handlers);
 	__attribute__((unused, section(".unused"))) = __LINE__;
 #include "gpio.wrap"
 
-#include "ioexpander.h"
-#define IOEX_EXPIN(ioex, port, index) (ioex), (port), BIT(index)
-
-/*
- *  Define the IO expander IO in gpio.inc by the format:
- *    IOEX(name, EXPIN(ioex_port, port, offset), flags)
- *      - name: the name of this IO pin
- *      - EXPIN(ioex, port, offset)
- *         - ioex: the IO expander port (defined in board.c) this IO
- *                 pin belongs to.
- *         - port: the port number in the IO expander chip.
- *         - offset: the bit offset in the port above.
- *      - flags: the same as the flags of GPIO.
- *
- */
-#define IOEX(name, expin, flags) {#name, IOEX_##expin, flags},
-/*
- *  Define the IO expander IO which supports interrupt in gpio.inc by
- *  the format:
- *    IOEX_INT(name, EXPIN(ioex_port, port, offset), flags, handler)
- *      - name: the name of this IO pin
- *      - EXPIN(ioex, port, offset)
- *         - ioex: the IO expander port (defined in board.c) this IO
- *                 pin belongs to.
- *         - port: the port number in the IO expander chip.
- *         - offset: the bit offset in the port above.
- *      - flags: the same as the flags of GPIO.
- *      - handler: the IOEX IO's interrupt handler.
- */
-#define IOEX_INT(name, expin, flags, handler) IOEX(name, expin, flags)
-
-/* IO expander signal list. */
-const struct ioex_info ioex_list[] = {
-	#include "gpio.wrap"
-};
-BUILD_ASSERT(ARRAY_SIZE(ioex_list) == IOEX_COUNT);
-
-/* IO Expander Interrupt Handlers */
-#define IOEX_INT(name, expin, flags, handler) handler,
-void (* const ioex_irq_handlers[])(enum ioex_signal signal) = {
-	#include "gpio.wrap"
-};
-const int ioex_ih_count = ARRAY_SIZE(ioex_irq_handlers);
-/*
- * All IOEX IOs with interrupt handlers must be declared at the top of the
- * IOEX's declaration in the gpio.inc
- * file.
- */
-#define IOEX_INT(name, expin, flags, handler)	\
-	BUILD_ASSERT(IOEX_##name < ARRAY_SIZE(ioex_irq_handlers));
-#include "gpio.wrap"
-
-#define IOEX(name, expin, flags) expin
-#define IOEX_INT(name, expin, flags, handler) expin
-
-/* The compiler will complain if we use the same name twice or the controller
- * number declared is greater or equal to CONFIG_IO_EXPANDER_PORT_COUNT.
- * The linker ignores anything that gets by.
- */
-#define EXPIN(a, b, c...) \
-	static const int _expin_ ## a ## _ ## b ## _ ## c \
-	__attribute__((unused, section(".unused"))) = __LINE__; \
-	BUILD_ASSERT(a < CONFIG_IO_EXPANDER_PORT_COUNT);
-
-#include "gpio.wrap"
diff --git a/include/gpio_signal.h b/include/gpio_signal.h
index 478e83dca5..5d629640c9 100644
--- a/include/gpio_signal.h
+++ b/include/gpio_signal.h
@@ -30,20 +30,4 @@ enum gpio_signal {
 };
 BUILD_ASSERT(GPIO_COUNT < GPIO_LIMIT);
 
-#define IOEX(name, expin, flags) IOEX_##name,
-#define IOEX_INT(name, expin, flags, signal) IOEX_##name,
-
-enum ioex_signal {
-	/* The first valid IOEX signal is 0x1000 */
-	IOEX_SIGNAL_START = GPIO_LIMIT + 1,
-	/* Used to ensure that the first IOEX signal is same as start */
-	__IOEX_PLACEHOLDER = GPIO_LIMIT,
-	#include "gpio.wrap"
-	IOEX_SIGNAL_END,
-	IOEX_LIMIT = 0x1FFF
-};
-BUILD_ASSERT(IOEX_SIGNAL_END < IOEX_LIMIT);
-
-#define IOEX_COUNT (IOEX_SIGNAL_END - IOEX_SIGNAL_START)
-
 #endif /* __CROS_EC_GPIO_SIGNAL_H */
diff --git a/include/ioexpander.h b/include/ioexpander.h
deleted file mode 100644
index 206b0a390c..0000000000
--- a/include/ioexpander.h
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * Copyright 2019 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef __CROS_EC_IOEXPANDER_H
-#define __CROS_EC_IOEXPANDER_H
-
-/* IO expander signal definition structure */
-struct ioex_info {
-	/* Signal name */
-	const char *name;
-
-	/* IO expander port number */
-	uint16_t ioex;
-
-	/* IO port number in IO expander */
-	uint16_t port;
-
-	/* Bitmask on that port (1 << N) */
-	uint32_t mask;
-
-	/* Flags - the same as the GPIO flags */
-	uint32_t flags;
-};
-
-/* Signal information from board.c.  Must match order from enum ioex_signal. */
-extern const struct ioex_info ioex_list[];
-extern void (* const ioex_irq_handlers[])(enum ioex_signal signal);
-extern const int ioex_ih_count;
-
-struct ioexpander_drv {
-	/* Initialize IO expander chip/driver */
-	int (*init)(int ioex);
-	/* Get the current level of the IOEX pin */
-	int (*get_level)(int ioex, int port, int mask, int *val);
-	/* Set the level of the IOEX pin */
-	int (*set_level)(int ioex, int port, int mask, int val);
-	/* Get flags for the IOEX pin */
-	int (*get_flags_by_mask)(int ioex, int port, int mask, int *flags);
-	/* Set flags for the IOEX pin */
-	int (*set_flags_by_mask)(int ioex, int port, int mask, int flags);
-	/* Enable/disable interrupt for the IOEX pin */
-	int (*enable_interrupt)(int ioex, int port, int mask, int enable);
-};
-
-struct ioexpander_config_t {
-	/* Physical I2C port connects to the IO expander chip. */
-	int i2c_host_port;
-	/* I2C slave address */
-	int i2c_slave_addr;
-	/*
-	 * Pointer to the specific IO expander chip's ops defined in
-	 * the struct ioexpander_drv.
-	 */
-	const struct ioexpander_drv *drv;
-};
-
-extern struct ioexpander_config_t ioex_config[];
-
-/*
- * Enable the interrupt for the IOEX signal
- *
- * @param signal	IOEX signal to enable the interrupt
- * @return			EC_SUCCESS if successful, non-zero if error.
- */
-int ioex_enable_interrupt(enum ioex_signal signal);
-
-/*
- * Disable the interrupt for the IOEX signal
- *
- * @param signal	IOEX signal to disable the interrupt
- * @return			EC_SUCCESS if successful, non-zero if error.
- */
-int ioex_disable_interrupt(enum ioex_signal signal);
-
-/*
- * Get flags for the IOEX pin by mask
- *
- * @param ioex		IO expander chip's port number
- * @param port		IO port in the IO expander chip
- * @param mask		Bitmask of the pin on the port above
- * @param flags		Pointer to the keep the flags read
- * @return			EC_SUCCESS if successful, non-zero if error.
- */
-int ioex_get_flags_by_mask(int ioex, int port, int mask, int *flags);
-
-/*
- * Set flags for the IOEX pin by mask
- *
- * @param ioex		IO expander chip's port number
- * @param port		IO port in the IO expander chip
- * @param mask		Bitmask of the pin on the port above
- * @param flags		flags to set
- * @return			EC_SUCCESS if successful, non-zero if error.
- */
-int ioex_set_flags_by_mask(int ioex, int port, int mask, int flags);
-
-/*
- * Get flags for the IOEX signal
- *
- * @param signal	IOEX signal to get flags for
- * @param flags		Pointer to the keep the flags read
- * @return			EC_SUCCESS if successful, non-zero if error.
- */
-int ioex_get_flags(enum ioex_signal signal, int *flags);
-
-/*
- * Set flags for the IOEX signal
- *
- * @param signal	IOEX signal to set flags for
- * @param flags		New flags for the IOEX signal
- * @return			EC_SUCCESS if successful, non-zero if error.
- */
-int ioex_set_flags(enum ioex_signal signal, int flags);
-
-/*
- * Get the current level of the IOEX signal
- *
- * @param signal	IOEX signal to get the level
- * @param val		Pointer to the keep the level read
- * @return			EC_SUCCESS if successful, non-zero if error.
- */
-int ioex_get_level(enum ioex_signal signal, int *val);
-
-/*
- * Set the level of the IOEX signal
- *
- * @param signal	IOEX signal to set the level
- * @param value		New level for the IOEX signal
- * @return			EC_SUCCESS if successful, non-zero if error.
- */
-int ioex_set_level(enum ioex_signal signal, int value);
-
-/*
- * Initialize IO expander chip/driver
- *
- * @param ioex		IO expander chip's port number
- * @return			EC_SUCCESS if successful, non-zero if error.
- */
-int ioex_init(int ioex);
-
-/*
- * Get the name for the IOEX signal
- *
- * @param signal	IOEX signal to get the name
- * @returns name of the given IOEX signal
- */
-const char *ioex_get_name(enum ioex_signal signal);
-
-/*
- * Check if signal is an IO expander signal or GPIO signal.
- *
- * @param signal	GPIO or IOEX signal
- * @return		1 if signal is IOEX else return 0
- */
-int signal_is_ioex(int signal);
-
-#endif /* __CROS_EC_IOEXPANDER_H */