blob: 5530f257033f55ac7ee688dfa85f145295f315eb [file] [log] [blame]
/*
* Copyright (c) 2019, Nordic Semiconductor
*
* SPDX-License-Identifier: Apache-2.0
*/
#define DT_DRV_COMPAT nordic_nrf_ipc
#include <string.h>
#include <zephyr/drivers/ipm.h>
#include <nrfx_ipc.h>
#include "ipm_nrfx_ipc.h"
#define LOG_LEVEL CONFIG_IPM_LOG_LEVEL
#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(ipm_nrfx_ipc);
struct ipm_nrf_data {
ipm_callback_t callback;
void *user_data;
};
static struct ipm_nrf_data nrfx_ipm_data;
static void gipm_init(void);
static void gipm_send(uint32_t id);
#if IS_ENABLED(CONFIG_IPM_NRF_SINGLE_INSTANCE)
static void nrfx_ipc_handler(uint32_t event_mask, void *p_context)
{
if (nrfx_ipm_data.callback) {
while (event_mask) {
uint8_t event_idx = __CLZ(__RBIT(event_mask));
__ASSERT(event_idx < NRFX_IPC_ID_MAX_VALUE,
"Illegal event_idx: %d", event_idx);
event_mask &= ~BIT(event_idx);
nrfx_ipm_data.callback(DEVICE_DT_INST_GET(0),
nrfx_ipm_data.user_data,
event_idx,
NULL);
}
}
}
static int ipm_nrf_send(const struct device *dev, int wait, uint32_t id,
const void *data, int size)
{
if (id > NRFX_IPC_ID_MAX_VALUE) {
return -EINVAL;
}
if (size > 0) {
LOG_WRN("nRF driver does not support sending data over IPM");
}
gipm_send(id);
return 0;
}
static int ipm_nrf_max_data_size_get(const struct device *dev)
{
ARG_UNUSED(dev);
return 0;
}
static uint32_t ipm_nrf_max_id_val_get(const struct device *dev)
{
ARG_UNUSED(dev);
return NRFX_IPC_ID_MAX_VALUE;
}
static void ipm_nrf_register_callback(const struct device *dev,
ipm_callback_t cb,
void *user_data)
{
nrfx_ipm_data.callback = cb;
nrfx_ipm_data.user_data = user_data;
}
static int ipm_nrf_set_enabled(const struct device *dev, int enable)
{
/* Enable configured channels */
if (enable) {
irq_enable(DT_INST_IRQN(0));
nrfx_ipc_receive_event_group_enable((uint32_t)IPC_EVENT_BITS);
} else {
irq_disable(DT_INST_IRQN(0));
nrfx_ipc_receive_event_group_disable((uint32_t)IPC_EVENT_BITS);
}
return 0;
}
static int ipm_nrf_init(const struct device *dev)
{
gipm_init();
return 0;
}
static const struct ipm_driver_api ipm_nrf_driver_api = {
.send = ipm_nrf_send,
.register_callback = ipm_nrf_register_callback,
.max_data_size_get = ipm_nrf_max_data_size_get,
.max_id_val_get = ipm_nrf_max_id_val_get,
.set_enabled = ipm_nrf_set_enabled
};
DEVICE_DT_INST_DEFINE(0, ipm_nrf_init, NULL, NULL, NULL,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
&ipm_nrf_driver_api);
#else
struct vipm_nrf_data {
ipm_callback_t callback[NRFX_IPC_ID_MAX_VALUE];
void *user_data[NRFX_IPC_ID_MAX_VALUE];
const struct device *ipm_device[NRFX_IPC_ID_MAX_VALUE];
bool ipm_init;
};
static struct vipm_nrf_data nrfx_vipm_data;
static void vipm_dispatcher(uint32_t event_mask, void *p_context)
{
while (event_mask) {
uint8_t event_idx = __CLZ(__RBIT(event_mask));
__ASSERT(event_idx < NRFX_IPC_ID_MAX_VALUE,
"Illegal event_idx: %d", event_idx);
event_mask &= ~BIT(event_idx);
if (nrfx_vipm_data.callback[event_idx] != NULL) {
nrfx_vipm_data.callback[event_idx]
(nrfx_vipm_data.ipm_device[event_idx],
nrfx_vipm_data.user_data[event_idx],
0,
NULL);
}
}
}
static int vipm_nrf_max_data_size_get(const struct device *dev)
{
return ipm_max_data_size_get(dev);
}
static uint32_t vipm_nrf_max_id_val_get(const struct device *dev)
{
ARG_UNUSED(dev);
return 0;
}
static int vipm_nrf_init(const struct device *dev)
{
if (!nrfx_vipm_data.ipm_init) {
gipm_init();
nrfx_vipm_data.ipm_init = true;
}
return 0;
}
#define VIPM_DEVICE_1(_idx) \
static int vipm_nrf_##_idx##_send(const struct device *dev, int wait, \
uint32_t id, const void *data, int size) \
{ \
if (!IS_ENABLED(CONFIG_IPM_MSG_CH_##_idx##_TX)) { \
LOG_ERR("IPM_" #_idx " is RX message channel"); \
return -EINVAL; \
} \
\
if (id > NRFX_IPC_ID_MAX_VALUE) { \
return -EINVAL; \
} \
\
if (id != 0) { \
LOG_WRN("Passing message ID to IPM with" \
"predefined message ID"); \
} \
\
if (size > 0) { \
LOG_WRN("nRF driver does not support" \
"sending data over IPM"); \
} \
\
gipm_send(_idx); \
return 0; \
} \
\
static void vipm_nrf_##_idx##_register_callback(const struct device *dev, \
ipm_callback_t cb, \
void *user_data) \
{ \
if (IS_ENABLED(CONFIG_IPM_MSG_CH_##_idx##_RX)) { \
nrfx_vipm_data.callback[_idx] = cb; \
nrfx_vipm_data.user_data[_idx] = user_data; \
nrfx_vipm_data.ipm_device[_idx] = dev; \
} else { \
LOG_WRN("Trying to register a callback" \
"for TX channel IPM_" #_idx); \
} \
} \
\
static int vipm_nrf_##_idx##_set_enabled(const struct device *dev, int enable)\
{ \
if (!IS_ENABLED(CONFIG_IPM_MSG_CH_##_idx##_RX)) { \
LOG_ERR("IPM_" #_idx " is TX message channel"); \
return -EINVAL; \
} else if (enable) { \
irq_enable(DT_INST_IRQN(0)); \
nrfx_ipc_receive_event_enable(_idx); \
} else if (!enable) { \
nrfx_ipc_receive_event_disable(_idx); \
} \
return 0; \
} \
\
static const struct ipm_driver_api vipm_nrf_##_idx##_driver_api = { \
.send = vipm_nrf_##_idx##_send, \
.register_callback = vipm_nrf_##_idx##_register_callback, \
.max_data_size_get = vipm_nrf_max_data_size_get, \
.max_id_val_get = vipm_nrf_max_id_val_get, \
.set_enabled = vipm_nrf_##_idx##_set_enabled \
}; \
\
DEVICE_DEFINE(vipm_nrf_##_idx, "IPM_"#_idx, \
vipm_nrf_init, NULL, NULL, NULL, \
PRE_KERNEL_2, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT, \
&vipm_nrf_##_idx##_driver_api)
#define VIPM_DEVICE(_idx, _) \
IF_ENABLED(CONFIG_IPM_MSG_CH_##_idx##_ENABLE, (VIPM_DEVICE_1(_idx)))
LISTIFY(NRFX_IPC_ID_MAX_VALUE, VIPM_DEVICE, (;), _);
#endif
static void gipm_init(void)
{
/* Init IPC */
#if IS_ENABLED(CONFIG_IPM_NRF_SINGLE_INSTANCE)
nrfx_ipc_init(0, nrfx_ipc_handler, (void *)&nrfx_ipm_data);
#else
nrfx_ipc_init(0, vipm_dispatcher, (void *)&nrfx_ipm_data);
#endif
IRQ_CONNECT(DT_INST_IRQN(0),
DT_INST_IRQ(0, priority),
nrfx_isr, nrfx_ipc_irq_handler, 0);
/* Set up signals and channels */
nrfx_ipc_config_load(&ipc_cfg);
}
static void gipm_send(uint32_t id)
{
nrfx_ipc_signal(id);
}