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zephyr/drivers/gpio/gpio_dw.c

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/*
* Copyright (c) 2015 Intel Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <errno.h>
#include <nanokernel.h>
#include <gpio.h>
#include "gpio_dw.h"
#include "gpio_utils.h"
#include <board.h>
#include <sys_io.h>
#include <init.h>
#include <misc/util.h>
#include <misc/__assert.h>
#include <clock_control.h>
#ifdef CONFIG_SHARED_IRQ
#include <shared_irq.h>
#endif
#ifdef CONFIG_IOAPIC
#include <drivers/ioapic.h>
#endif
#ifdef CONFIG_DEVICE_POWER_MANAGEMENT
#include <power.h>
#endif
/*
* ARC architecture configure IP through IO auxiliary registers.
* Other architectures as ARM and x86 configure IP through MMIO registers
*/
#ifdef GPIO_DW_IO_ACCESS
static inline uint32_t dw_read(uint32_t base_addr, uint32_t offset)
{
return sys_in32(base_addr + offset);
}
static inline void dw_write(uint32_t base_addr, uint32_t offset,
uint32_t val)
{
sys_out32(val, base_addr + offset);
}
static void dw_set_bit(uint32_t base_addr, uint32_t offset,
uint32_t bit, uint8_t value)
{
if (!value) {
sys_io_clear_bit(base_addr + offset, bit);
} else {
sys_io_set_bit(base_addr + offset, bit);
}
}
#else
static inline uint32_t dw_read(uint32_t base_addr, uint32_t offset)
{
return sys_read32(base_addr + offset);
}
static inline void dw_write(uint32_t base_addr, uint32_t offset,
uint32_t val)
{
sys_write32(val, base_addr + offset);
}
static void dw_set_bit(uint32_t base_addr, uint32_t offset,
uint32_t bit, uint8_t value)
{
if (!value) {
sys_clear_bit(base_addr + offset, bit);
} else {
sys_set_bit(base_addr + offset, bit);
}
}
#endif
#ifdef CONFIG_GPIO_DW_CLOCK_GATE
static inline void _gpio_dw_clock_config(struct device *port)
{
char *drv = CONFIG_GPIO_DW_CLOCK_GATE_DRV_NAME;
struct device *clk;
clk = device_get_binding(drv);
if (clk) {
struct gpio_dw_runtime *context = port->driver_data;
context->clock = clk;
}
}
static inline void _gpio_dw_clock_on(struct device *port)
{
const struct gpio_dw_config *config = port->config->config_info;
struct gpio_dw_runtime *context = port->driver_data;
clock_control_on(context->clock, config->clock_data);
}
static inline void _gpio_dw_clock_off(struct device *port)
{
const struct gpio_dw_config *config = port->config->config_info;
struct gpio_dw_runtime *context = port->driver_data;
clock_control_off(context->clock, config->clock_data);
}
#else
#define _gpio_dw_clock_config(...)
#define _gpio_dw_clock_on(...)
#define _gpio_dw_clock_off(...)
#endif
#ifdef CONFIG_SOC_QUARK_SE_C1000_SS
static inline void dw_set_both_edges(uint32_t base_addr, uint32_t pin)
{
ARG_UNUSED(base_addr);
ARG_UNUSED(pin);
}
static inline int dw_base_to_block_base(uint32_t base_addr)
{
return base_addr;
}
static inline int dw_interrupt_support(const struct gpio_dw_config *config)
{
ARG_UNUSED(config);
return 1;
}
#else
static inline void dw_set_both_edges(uint32_t base_addr, uint32_t pin)
{
dw_set_bit(base_addr, INT_BOTHEDGE, pin, 1);
}
static inline int dw_base_to_block_base(uint32_t base_addr)
{
return (base_addr & 0xFFFFFFC0);
}
static inline int dw_derive_port_from_base(uint32_t base_addr)
{
uint32_t port = (base_addr & 0x3f) / 12;
return port;
}
static inline int dw_interrupt_support(const struct gpio_dw_config *config)
{
return ((int)(config->irq_num) > 0);
}
#endif
static inline void dw_interrupt_config(struct device *port, int access_op,
uint32_t pin, int flags)
{
struct gpio_dw_runtime *context = port->driver_data;
const struct gpio_dw_config *config = port->config->config_info;
uint32_t base_addr = dw_base_to_block_base(context->base_addr);
uint8_t flag_is_set;
/* set as an input pin */
dw_set_bit(context->base_addr, SWPORTA_DDR, pin, 0);
if (dw_interrupt_support(config)) {
/* level or edge */
flag_is_set = (flags & GPIO_INT_EDGE);
dw_set_bit(base_addr, INTTYPE_LEVEL, pin, flag_is_set);
/* Active low/high */
flag_is_set = (flags & GPIO_INT_ACTIVE_HIGH);
dw_set_bit(base_addr, INT_POLARITY, pin, flag_is_set);
/* both edges */
flag_is_set = (flags & GPIO_INT_DOUBLE_EDGE);
if (flag_is_set) {
dw_set_both_edges(base_addr, pin);
dw_set_bit(base_addr, INTTYPE_LEVEL, pin, flag_is_set);
}
/* use built-in debounce */
flag_is_set = (flags & GPIO_INT_DEBOUNCE);
dw_set_bit(base_addr, PORTA_DEBOUNCE, pin, flag_is_set);
/* Finally enabling interrupt */
dw_set_bit(base_addr, INTEN, pin, 1);
}
}
static inline void dw_pin_config(struct device *port,
uint32_t pin, int flags)
{
struct gpio_dw_runtime *context = port->driver_data;
const struct gpio_dw_config *config = port->config->config_info;
uint32_t base_addr = dw_base_to_block_base(context->base_addr);
uint32_t port_base_addr = context->base_addr;
int interrupt_support = dw_interrupt_support(config);
if (interrupt_support) {
/* clear interrupt enable */
dw_set_bit(base_addr, INTEN, pin, 0);
}
/* set direction */
dw_set_bit(port_base_addr, SWPORTA_DDR, pin, (flags & GPIO_DIR_MASK));
if (interrupt_support && (flags & GPIO_INT)) {
dw_interrupt_config(port, GPIO_ACCESS_BY_PIN, pin, flags);
}
}
static inline void dw_port_config(struct device *port, int flags)
{
const struct gpio_dw_config *config = port->config->config_info;
int i;
for (i = 0; i < config->bits; i++) {
dw_pin_config(port, i, flags);
}
}
static inline int gpio_dw_config(struct device *port, int access_op,
uint32_t pin, int flags)
{
if ((flags & GPIO_INT) && (flags & GPIO_DIR_OUT)) {
return -1;
}
if (GPIO_ACCESS_BY_PIN == access_op) {
dw_pin_config(port, pin, flags);
} else {
dw_port_config(port, flags);
}
return 0;
}
static inline int gpio_dw_write(struct device *port, int access_op,
uint32_t pin, uint32_t value)
{
struct gpio_dw_runtime *context = port->driver_data;
uint32_t base_addr = context->base_addr;
if (GPIO_ACCESS_BY_PIN == access_op) {
dw_set_bit(base_addr, SWPORTA_DR, pin, value);
} else {
dw_write(base_addr, SWPORTA_DR, value);
}
return 0;
}
static inline int gpio_dw_read(struct device *port, int access_op,
uint32_t pin, uint32_t *value)
{
struct gpio_dw_runtime *context = port->driver_data;
uint32_t base_addr = context->base_addr;
#ifndef CONFIG_SOC_QUARK_SE_C1000_SS
uint32_t ext_port = EXT_PORTA;
#endif
#ifdef CONFIG_SOC_QUARK_SE_C1000_SS
*value = dw_read(base_addr, EXT_PORTA);
#else
/* 4-port GPIO implementation translates from base address to port */
switch (dw_derive_port_from_base(base_addr)) {
case 1:
ext_port = EXT_PORTB;
break;
case 2:
ext_port = EXT_PORTC;
break;
case 3:
ext_port = EXT_PORTD;
break;
case 0:
default:
break;
}
*value = dw_read(dw_base_to_block_base(base_addr), ext_port);
#endif
if (GPIO_ACCESS_BY_PIN == access_op) {
*value = !!(*value & BIT(pin));
}
return 0;
}
static inline int gpio_dw_manage_callback(struct device *port,
struct gpio_callback *callback,
bool set)
{
struct gpio_dw_runtime *context = port->driver_data;
_gpio_manage_callback(&context->callbacks, callback, set);
return 0;
}
static inline int gpio_dw_enable_callback(struct device *port, int access_op,
uint32_t pin)
{
const struct gpio_dw_config *config = port->config->config_info;
struct gpio_dw_runtime *context = port->driver_data;
uint32_t base_addr = dw_base_to_block_base(context->base_addr);
if (GPIO_ACCESS_BY_PIN == access_op) {
dw_write(base_addr, PORTA_EOI, BIT(pin));
dw_set_bit(base_addr, INTMASK, pin, 0);
} else {
dw_write(base_addr, PORTA_EOI, BIT_MASK(config->bits));
dw_write(base_addr, INTMASK, 0);
}
return 0;
}
static inline int gpio_dw_disable_callback(struct device *port, int access_op,
uint32_t pin)
{
const struct gpio_dw_config *config = port->config->config_info;
struct gpio_dw_runtime *context = port->driver_data;
uint32_t base_addr = dw_base_to_block_base(context->base_addr);
if (GPIO_ACCESS_BY_PIN == access_op) {
dw_set_bit(base_addr, INTMASK, pin, 1);
} else {
dw_write(base_addr, INTMASK, BIT_MASK(config->bits));
}
return 0;
}
#ifdef CONFIG_DEVICE_POWER_MANAGEMENT
static void gpio_dw_set_power_state(struct device *port, uint32_t power_state)
{
struct gpio_dw_runtime *context = port->driver_data;
context->device_power_state = power_state;
}
static uint32_t gpio_dw_get_power_state(struct device *port)
{
struct gpio_dw_runtime *context = port->driver_data;
return context->device_power_state;
}
static inline int gpio_dw_suspend_port(struct device *port)
{
_gpio_dw_clock_off(port);
gpio_dw_set_power_state(port, DEVICE_PM_SUSPEND_STATE);
return 0;
}
static inline int gpio_dw_resume_from_suspend_port(struct device *port)
{
_gpio_dw_clock_on(port);
gpio_dw_set_power_state(port, DEVICE_PM_ACTIVE_STATE);
return 0;
}
/*
* Implements the driver control management functionality
* the *context may include IN data or/and OUT data
*/
static int gpio_dw_device_ctrl(struct device *port, uint32_t ctrl_command,
void *context)
{
if (ctrl_command == DEVICE_PM_SET_POWER_STATE) {
if (*((uint32_t *)context) == DEVICE_PM_SUSPEND_STATE) {
return gpio_dw_suspend_port(port);
} else if (*((uint32_t *)context) == DEVICE_PM_ACTIVE_STATE) {
return gpio_dw_resume_from_suspend_port(port);
}
} else if (ctrl_command == DEVICE_PM_GET_POWER_STATE) {
*((uint32_t *)context) = gpio_dw_get_power_state(port);
return 0;
}
return 0;
}
#else
#define gpio_dw_set_power_state(...)
#endif
#if defined(CONFIG_SOC_QUARK_SE_C1000) || defined(CONFIG_SOC_QUARK_D2000)
static inline void gpio_dw_unmask_int(uint32_t mask_addr)
{
sys_write32(sys_read32(mask_addr) & INT_UNMASK_IA, mask_addr);
}
#elif CONFIG_SOC_QUARK_SE_C1000_SS
static inline void gpio_dw_unmask_int(uint32_t mask_addr)
{
sys_write32(sys_read32(mask_addr) & INT_ENABLE_ARC, mask_addr);
}
#else
#define gpio_dw_unmask_int(...)
#endif
static void gpio_dw_isr(void *arg)
{
struct device *port = (struct device *)arg;
struct gpio_dw_runtime *context = port->driver_data;
uint32_t base_addr = dw_base_to_block_base(context->base_addr);
uint32_t int_status;
int_status = dw_read(base_addr, INTSTATUS);
#ifdef CONFIG_SHARED_IRQ
/* If using with shared IRQ, this function will be called
* by the shared IRQ driver. So check here if the interrupt
* is coming from the GPIO controller (or somewhere else).
*/
if (!int_status) {
return;
}
#endif
dw_write(base_addr, PORTA_EOI, int_status);
_gpio_fire_callbacks(&context->callbacks, port, int_status);
}
static const struct gpio_driver_api api_funcs = {
.config = gpio_dw_config,
.write = gpio_dw_write,
.read = gpio_dw_read,
.manage_callback = gpio_dw_manage_callback,
.enable_callback = gpio_dw_enable_callback,
.disable_callback = gpio_dw_disable_callback,
};
#ifdef CONFIG_PCI
static inline int gpio_dw_setup(struct device *dev)
{
struct gpio_dw_runtime *context = dev->driver_data;
pci_bus_scan_init();
if (!pci_bus_scan(&context->pci_dev)) {
return 0;
}
#ifdef CONFIG_PCI_ENUMERATION
context->base_addr = context->pci_dev.addr;
#endif
pci_enable_regs(&context->pci_dev);
pci_show(&context->pci_dev);
return 1;
}
#else
#define gpio_dw_setup(_unused_) (1)
#endif /* CONFIG_PCI */
static int gpio_dw_initialize(struct device *port)
{
struct gpio_dw_runtime *context = port->driver_data;
const struct gpio_dw_config *config = port->config->config_info;
uint32_t base_addr;
if (!gpio_dw_setup(port)) {
port->driver_api = NULL;
return -EPERM;
}
if (dw_interrupt_support(config)) {
base_addr = dw_base_to_block_base(context->base_addr);
#ifdef CONFIG_SOC_QUARK_SE_C1000_SS
/* Need to enable clock for GPIO controller */
dw_set_bit(base_addr, INT_CLOCK_SYNC, CLK_ENA_POS, 1);
#endif /* CONFIG_SOC_QUARK_SE_C1000_SS */
/* interrupts in sync with system clock */
dw_set_bit(base_addr, INT_CLOCK_SYNC, LS_SYNC_POS, 1);
_gpio_dw_clock_config(port);
/* mask and disable interrupts */
dw_write(base_addr, INTMASK, ~(0));
dw_write(base_addr, INTEN, 0);
dw_write(base_addr, PORTA_EOI, ~(0));
config->config_func(port);
}
gpio_dw_set_power_state(port, DEVICE_PM_ACTIVE_STATE);
return 0;
}
/* Bindings to the plaform */
#if CONFIG_GPIO_DW_0
static void gpio_config_0_irq(struct device *port);
static const struct gpio_dw_config gpio_config_0 = {
#ifdef CONFIG_GPIO_DW_0_IRQ_DIRECT
.irq_num = GPIO_DW_0_IRQ,
#endif
.bits = GPIO_DW_0_BITS,
.config_func = gpio_config_0_irq,
#ifdef CONFIG_GPIO_DW_0_IRQ_SHARED
.shared_irq_dev_name = CONFIG_GPIO_DW_0_IRQ_SHARED_NAME,
#endif
#ifdef CONFIG_GPIO_DW_CLOCK_GATE
.clock_data = UINT_TO_POINTER(CONFIG_GPIO_DW_0_CLOCK_GATE_SUBSYS),
#endif
};
static struct gpio_dw_runtime gpio_0_runtime = {
.base_addr = GPIO_DW_0_BASE_ADDR,
#if CONFIG_PCI
.pci_dev.class_type = GPIO_DW_PCI_CLASS,
.pci_dev.bus = GPIO_DW_0_PCI_BUS,
.pci_dev.dev = GPIO_DW_0_PCI_DEV,
.pci_dev.vendor_id = GPIO_DW_PCI_VENDOR_ID,
.pci_dev.device_id = GPIO_DW_PCI_DEVICE_ID,
.pci_dev.function = GPIO_DW_0_PCI_FUNCTION,
.pci_dev.bar = GPIO_DW_0_PCI_BAR,
#endif
};
#ifdef CONFIG_DEVICE_POWER_MANAGEMENT
DEVICE_DEFINE(gpio_dw_0, CONFIG_GPIO_DW_0_NAME, gpio_dw_initialize,
gpio_dw_device_ctrl, &gpio_0_runtime, &gpio_config_0,
POST_KERNEL, CONFIG_GPIO_DW_INIT_PRIORITY,
&api_funcs);
#else
DEVICE_AND_API_INIT(gpio_dw_0, CONFIG_GPIO_DW_0_NAME, gpio_dw_initialize,
&gpio_0_runtime, &gpio_config_0,
POST_KERNEL, CONFIG_GPIO_DW_INIT_PRIORITY,
&api_funcs);
#endif
static void gpio_config_0_irq(struct device *port)
{
#if (GPIO_DW_0_IRQ > 0)
const struct gpio_dw_config *config = port->config->config_info;
#ifdef CONFIG_GPIO_DW_0_IRQ_DIRECT
IRQ_CONNECT(GPIO_DW_0_IRQ, CONFIG_GPIO_DW_0_IRQ_PRI, gpio_dw_isr,
DEVICE_GET(gpio_dw_0), GPIO_DW_0_IRQ_FLAGS);
irq_enable(config->irq_num);
#elif defined(CONFIG_GPIO_DW_0_IRQ_SHARED)
struct device *shared_irq_dev;
shared_irq_dev = device_get_binding(config->shared_irq_dev_name);
__ASSERT(shared_irq_dev != NULL,
"Failed to get gpio_dw_0 device binding");
shared_irq_isr_register(shared_irq_dev, (isr_t)gpio_dw_isr, port);
shared_irq_enable(shared_irq_dev, port);
#endif
gpio_dw_unmask_int(GPIO_DW_PORT_0_INT_MASK);
#endif
}
#endif /* CONFIG_GPIO_DW_0 */
#if CONFIG_GPIO_DW_1
static void gpio_config_1_irq(struct device *port);
static const struct gpio_dw_config gpio_dw_config_1 = {
#ifdef CONFIG_GPIO_DW_1_IRQ_DIRECT
.irq_num = GPIO_DW_1_IRQ,
#endif
.bits = GPIO_DW_1_BITS,
.config_func = gpio_config_1_irq,
#ifdef CONFIG_GPIO_DW_1_IRQ_SHARED
.shared_irq_dev_name = CONFIG_GPIO_DW_1_IRQ_SHARED_NAME,
#endif
#ifdef CONFIG_GPIO_DW_CLOCK_GATE
.clock_data = UINT_TO_POINTER(CONFIG_GPIO_DW_1_CLOCK_GATE_SUBSYS),
#endif
};
static struct gpio_dw_runtime gpio_1_runtime = {
.base_addr = GPIO_DW_1_BASE_ADDR,
#if CONFIG_PCI
.pci_dev.class_type = GPIO_DW_PCI_CLASS,
.pci_dev.bus = GPIO_DW_1_PCI_BUS,
.pci_dev.dev = GPIO_DW_1_PCI_DEV,
.pci_dev.vendor_id = GPIO_DW_PCI_VENDOR_ID,
.pci_dev.device_id = GPIO_DW_PCI_DEVICE_ID,
.pci_dev.function = GPIO_DW_1_PCI_FUNCTION,
.pci_dev.bar = GPIO_DW_1_PCI_BAR,
#endif
};
#ifdef CONFIG_DEVICE_POWER_MANAGEMENT
DEVICE_DEFINE(gpio_dw_1, CONFIG_GPIO_DW_1_NAME, gpio_dw_initialize,
gpio_dw_device_ctrl, &gpio_1_runtime, &gpio_dw_config_1,
POST_KERNEL, CONFIG_GPIO_DW_INIT_PRIORITY,
&api_funcs);
#else
DEVICE_AND_API_INIT(gpio_dw_1, CONFIG_GPIO_DW_1_NAME, gpio_dw_initialize,
&gpio_1_runtime, &gpio_dw_config_1,
POST_KERNEL, CONFIG_GPIO_DW_INIT_PRIORITY,
&api_funcs);
#endif
static void gpio_config_1_irq(struct device *port)
{
#if (GPIO_DW_1_IRQ > 0)
const struct gpio_dw_config *config = port->config->config_info;
#ifdef CONFIG_GPIO_DW_1_IRQ_DIRECT
IRQ_CONNECT(GPIO_DW_1_IRQ, CONFIG_GPIO_DW_1_IRQ_PRI, gpio_dw_isr,
DEVICE_GET(gpio_dw_1), GPIO_DW_1_IRQ_FLAGS);
irq_enable(config->irq_num);
#elif defined(CONFIG_GPIO_DW_1_IRQ_SHARED)
struct device *shared_irq_dev;
shared_irq_dev = device_get_binding(config->shared_irq_dev_name);
__ASSERT(shared_irq_dev != NULL,
"Failed to get gpio_dw_1 device binding");
shared_irq_isr_register(shared_irq_dev, (isr_t)gpio_dw_isr, port);
shared_irq_enable(shared_irq_dev, port);
#endif
gpio_dw_unmask_int(GPIO_DW_PORT_1_INT_MASK);
#endif
}
#endif /* CONFIG_GPIO_DW_1 */
#if CONFIG_GPIO_DW_2
static void gpio_config_2_irq(struct device *port);
static const struct gpio_dw_config gpio_dw_config_2 = {
#ifdef CONFIG_GPIO_DW_2_IRQ_DIRECT
.irq_num = GPIO_DW_2_IRQ,
#endif
.bits = GPIO_DW_2_BITS,
.config_func = gpio_config_2_irq,
#ifdef CONFIG_GPIO_DW_2_IRQ_SHARED
.shared_irq_dev_name = CONFIG_GPIO_DW_2_IRQ_SHARED_NAME,
#endif
#ifdef CONFIG_GPIO_DW_CLOCK_GATE
.clock_data = UINT_TO_POINTER(CONFIG_GPIO_DW_2_CLOCK_GATE_SUBSYS),
#endif
};
static struct gpio_dw_runtime gpio_2_runtime = {
.base_addr = GPIO_DW_2_BASE_ADDR,
#if CONFIG_PCI
.pci_dev.class_type = GPIO_DW_PCI_CLASS,
.pci_dev.bus = GPIO_DW_2_PCI_BUS,
.pci_dev.dev = GPIO_DW_2_PCI_DEV,
.pci_dev.vendor_id = GPIO_DW_PCI_VENDOR_ID,
.pci_dev.device_id = GPIO_DW_PCI_DEVICE_ID,
.pci_dev.function = GPIO_DW_2_PCI_FUNCTION,
.pci_dev.bar = GPIO_DW_2_PCI_BAR,
#endif
};
#ifdef CONFIG_DEVICE_POWER_MANAGEMENT
DEVICE_DEFINE(gpio_dw_2, CONFIG_GPIO_DW_2_NAME, gpio_dw_initialize,
gpio_dw_device_ctrl, &gpio_2_runtime, &gpio_dw_config_2,
POST_KERNEL, CONFIG_GPIO_DW_INIT_PRIORITY,
&api_funcs);
#else
DEVICE_AND_API_INIT(gpio_dw_2, CONFIG_GPIO_DW_2_NAME, gpio_dw_initialize,
&gpio_2_runtime, &gpio_dw_config_2,
POST_KERNEL, CONFIG_GPIO_DW_INIT_PRIORITY,
&api_funcs);
#endif
static void gpio_config_2_irq(struct device *port)
{
#if (GPIO_DW_2_IRQ > 0)
const struct gpio_dw_config *config = port->config->config_info;
#ifdef CONFIG_GPIO_DW_2_IRQ_DIRECT
IRQ_CONNECT(GPIO_DW_2_IRQ, CONFIG_GPIO_DW_2_IRQ_PRI, gpio_dw_isr,
DEVICE_GET(gpio_dw_2), GPIO_DW_2_IRQ_FLAGS);
irq_enable(config->irq_num);
#elif defined(CONFIG_GPIO_DW_2_IRQ_SHARED)
struct device *shared_irq_dev;
shared_irq_dev = device_get_binding(config->shared_irq_dev_name);
__ASSERT(shared_irq_dev != NULL,
"Failed to get gpio_dw_2 device binding");
shared_irq_isr_register(shared_irq_dev, (isr_t)gpio_dw_isr, port);
shared_irq_enable(shared_irq_dev, port);
#endif
gpio_dw_unmask_int(GPIO_DW_PORT_2_INT_MASK);
#endif
}
#endif /* CONFIG_GPIO_DW_2 */
#if CONFIG_GPIO_DW_3
static void gpio_config_3_irq(struct device *port);
static const struct gpio_dw_config gpio_dw_config_3 = {
#ifdef CONFIG_GPIO_DW_3_IRQ_DIRECT
.irq_num = GPIO_DW_3_IRQ,
#endif
.bits = GPIO_DW_3_BITS,
.config_func = gpio_config_3_irq,
#ifdef CONFIG_GPIO_DW_3_IRQ_SHARED
.shared_irq_dev_name = CONFIG_GPIO_DW_3_IRQ_SHARED_NAME,
#endif
#ifdef CONFIG_GPIO_DW_CLOCK_GATE
.clock_data = UINT_TO_POINTER(CONFIG_GPIO_DW_3_CLOCK_GATE_SUBSYS),
#endif
};
static struct gpio_dw_runtime gpio_3_runtime = {
.base_addr = GPIO_DW_3_BASE_ADDR,
#if CONFIG_PCI
.pci_dev.class_type = GPIO_DW_PCI_CLASS,
.pci_dev.bus = GPIO_DW_3_PCI_BUS,
.pci_dev.dev = GPIO_DW_3_PCI_DEV,
.pci_dev.vendor_id = GPIO_DW_PCI_VENDOR_ID,
.pci_dev.device_id = GPIO_DW_PCI_DEVICE_ID,
.pci_dev.function = GPIO_DW_3_PCI_FUNCTION,
.pci_dev.bar = GPIO_DW_3_PCI_BAR,
#endif
};
#ifdef CONFIG_DEVICE_POWER_MANAGEMENT
DEVICE_DEFINE(gpio_dw_3, CONFIG_GPIO_DW_3_NAME, gpio_dw_initialize,
gpio_dw_device_ctrl, &gpio_3_runtime, &gpio_dw_config_3,
POST_KERNEL, CONFIG_GPIO_DW_INIT_PRIORITY,
&api_funcs);
#else
DEVICE_AND_API_INIT(gpio_dw_3, CONFIG_GPIO_DW_3_NAME, gpio_dw_initialize,
&gpio_3_runtime, &gpio_dw_config_3,
POST_KERNEL, CONFIG_GPIO_DW_INIT_PRIORITY,
&api_funcs);
#endif
static void gpio_config_3_irq(struct device *port)
{
#if (GPIO_DW_3_IRQ > 0)
const struct gpio_dw_config *config = port->config->config_info;
#ifdef CONFIG_GPIO_DW_3_IRQ_DIRECT
IRQ_CONNECT(GPIO_DW_3_IRQ, CONFIG_GPIO_DW_3_IRQ_PRI, gpio_dw_isr,
DEVICE_GET(gpio_dw_3), GPIO_DW_3_IRQ_FLAGS);
irq_enable(config->irq_num);
#elif defined(CONFIG_GPIO_DW_3_IRQ_SHARED)
struct device *shared_irq_dev;
shared_irq_dev = device_get_binding(config->shared_irq_dev_name);
__ASSERT(shared_irq_dev != NULL,
"Failed to get gpio_dw_3 device binding");
shared_irq_isr_register(shared_irq_dev, (isr_t)gpio_dw_isr, port);
shared_irq_enable(shared_irq_dev, port);
#endif
gpio_dw_unmask_int(GPIO_DW_PORT_3_INT_MASK);
#endif
}
#endif /* CONFIG_GPIO_DW_3 */
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