michaelh/zephyr
1
0
Fork 0
Code Releases Activity

drivers: can: mcan: let front-end drivers supply message RAM functions

Browse source 
Let the Bosch M_CAN front-end drivers supply their own Message RAM
read/write/clear functions.

This is preparation for supporting per-instance Bosch M_CAN Message RAM
layouts and for accessing Bosch M_CAN IP cores over peripheral busses.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
This commit is contained in:
Henrik Brix Andersen 2023-05-10 22:07:42 +02:00 • committed by Anas Nashif
commit 3ed354eea1
7 changed files with 816 additions and 246 deletions
Download patch file Download diff file Expand all files Collapse all files

41
drivers/can/can_mcux_mcan.c
View file

@ -49,6 +49,31 @@ static int mcux_mcan_write_reg(const struct device *dev, uint16_t reg, uint32_t
return can_mcan_sys_write_reg(mcux_config->base, reg, val);
}
static int mcux_mcan_read_mram(const struct device *dev, uint16_t offset, void *dst, size_t len)
{
struct can_mcan_data *mcan_data = dev->data;
struct mcux_mcan_data *mcux_data = mcan_data->custom;
return can_mcan_sys_read_mram(POINTER_TO_UINT(&mcux_data->msg_ram), offset, dst, len);
}
static int mcux_mcan_write_mram(const struct device *dev, uint16_t offset, const void *src,
size_t len)
{
struct can_mcan_data *mcan_data = dev->data;
struct mcux_mcan_data *mcux_data = mcan_data->custom;
return can_mcan_sys_write_mram(POINTER_TO_UINT(&mcux_data->msg_ram), offset, src, len);
}
static int mcux_mcan_clear_mram(const struct device *dev, uint16_t offset, size_t len)
{
struct can_mcan_data *mcan_data = dev->data;
struct mcux_mcan_data *mcux_data = mcan_data->custom;
return can_mcan_sys_clear_mram(POINTER_TO_UINT(&mcux_data->msg_ram), offset, len);
}
static int mcux_mcan_get_core_clock(const struct device *dev, uint32_t *rate)
{
const struct can_mcan_config *mcan_config = dev->config;
@ -88,7 +113,7 @@ static int mcux_mcan_init(const struct device *dev)
return -EIO;
}
err = can_mcan_configure_message_ram(dev, mrba);
err = can_mcan_configure_mram(dev, mrba, POINTER_TO_UINT(&mcux_data->msg_ram));
if (err != 0) {
return -EIO;
}
@ -170,6 +195,14 @@ static const struct can_driver_api mcux_mcan_driver_api = {
#endif /* CONFIG_CAN_FD_MODE */
};
static const struct can_mcan_ops mcux_mcan_ops = {
.read_reg = mcux_mcan_read_reg,
.write_reg = mcux_mcan_write_reg,
.read_mram = mcux_mcan_read_mram,
.write_mram = mcux_mcan_write_mram,
.clear_mram = mcux_mcan_clear_mram,
};
#define MCUX_MCAN_INIT(n) \
PINCTRL_DT_INST_DEFINE(n); \
\
@ -186,14 +219,12 @@ static const struct can_driver_api mcux_mcan_driver_api = {
\
static const struct can_mcan_config can_mcan_config_##n = \
CAN_MCAN_DT_CONFIG_INST_GET(n, &mcux_mcan_config_##n, \
mcux_mcan_read_reg, \
mcux_mcan_write_reg); \
&mcux_mcan_ops); \
\
static struct mcux_mcan_data mcux_mcan_data_##n; \
\
static struct can_mcan_data can_mcan_data_##n = \
CAN_MCAN_DATA_INITIALIZER(&mcux_mcan_data_##n.msg_ram, \
&mcux_mcan_data_##n); \
CAN_MCAN_DATA_INITIALIZER(&mcux_mcan_data_##n); \
\
DEVICE_DT_INST_DEFINE(n, &mcux_mcan_init, NULL, \
&can_mcan_data_##n, \