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drivers/sensor: iis2iclx: fix multi-instance using new helpers

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This commit simplifies the Device Tree configuration by using
the new helpers introduced in #30536.

In particular:
    - get bus devices with DEVICE_DT_GET
    - get SPI information with SPI_CONFIG_DT_INST

Signed-off-by: Armando Visconti <armando.visconti@st.com>
This commit is contained in:
Armando Visconti 2021-03-04 11:37:36 +01:00 • committed by Anas Nashif
commit de707b6870
4 changed files with 37 additions and 112 deletions
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87
drivers/sensor/iis2iclx/iis2iclx.c
View file

@ -589,17 +589,12 @@ static int iis2iclx_init_chip(const struct device *dev)
static int iis2iclx_init(const struct device *dev)
{
const struct iis2iclx_config * const config = dev->config;
struct iis2iclx_data *data = dev->data;
data->bus = device_get_binding(config->bus_name);
if (!data->bus) {
LOG_DBG("master not found: %s",
config->bus_name);
return -EINVAL;
if (config->bus_init(dev) < 0) {
LOG_ERR("failed to initialize bus");
return -EIO;
}
config->bus_init(dev);
if (iis2iclx_init_chip(dev) < 0) {
LOG_ERR("failed to initialize chip");
return -EIO;
@ -646,45 +641,6 @@ static int iis2iclx_init(const struct device *dev)
* Instantiation macros used when a device is on a SPI bus.
*/
#define IIS2ICLX_HAS_CS(inst) DT_INST_SPI_DEV_HAS_CS_GPIOS(inst)
#define IIS2ICLX_DATA_SPI_CS(inst) \
{ .cs_ctrl = { \
.gpio_pin = DT_INST_SPI_DEV_CS_GPIOS_PIN(inst), \
.gpio_dt_flags = DT_INST_SPI_DEV_CS_GPIOS_FLAGS(inst), \
}, \
}
#define IIS2ICLX_DATA_SPI(inst) \
COND_CODE_1(IIS2ICLX_HAS_CS(inst), \
(IIS2ICLX_DATA_SPI_CS(inst)), \
({}))
#define IIS2ICLX_SPI_CS_PTR(inst) \
COND_CODE_1(IIS2ICLX_HAS_CS(inst), \
(&(iis2iclx_data_##inst.cs_ctrl)), \
(NULL))
#define IIS2ICLX_SPI_CS_LABEL(inst) \
COND_CODE_1(IIS2ICLX_HAS_CS(inst), \
(DT_INST_SPI_DEV_CS_GPIOS_LABEL(inst)), (NULL))
#define IIS2ICLX_SPI_CFG(inst) \
(&(struct iis2iclx_spi_cfg) { \
.spi_conf = { \
.frequency = \
DT_INST_PROP(inst, spi_max_frequency), \
.operation = (SPI_WORD_SET(8) | \
SPI_OP_MODE_MASTER | \
SPI_MODE_CPOL | \
SPI_MODE_CPHA), \
.slave = DT_INST_REG_ADDR(inst), \
.cs = IIS2ICLX_SPI_CS_PTR(inst), \
}, \
.cs_gpios_label = IIS2ICLX_SPI_CS_LABEL(inst), \
})
#ifdef CONFIG_IIS2ICLX_TRIGGER
#define IIS2ICLX_CFG_IRQ(inst) \
.irq_dev_name = DT_INST_GPIO_LABEL(inst, drdy_gpios), \
@ -695,52 +651,51 @@ static int iis2iclx_init(const struct device *dev)
#define IIS2ICLX_CFG_IRQ(inst)
#endif /* CONFIG_IIS2ICLX_TRIGGER */
#define IIS2ICLX_SPI_OPERATION (SPI_WORD_SET(8) | \
SPI_OP_MODE_MASTER | \
SPI_MODE_CPOL | \
SPI_MODE_CPHA) \
#define IIS2ICLX_CONFIG_SPI(inst) \
{ \
.bus_name = DT_INST_BUS_LABEL(inst), \
.bus = DEVICE_DT_GET(DT_INST_BUS(inst)), \
.bus_init = iis2iclx_spi_init, \
.bus_cfg = { .spi_cfg = IIS2ICLX_SPI_CFG(inst) }, \
.bus_cfg.spi_cfg = \
SPI_CONFIG_DT_INST(inst, \
IIS2ICLX_SPI_OPERATION, \
0), \
.odr = DT_INST_PROP(inst, odr), \
.range = DT_INST_PROP(inst, range), \
COND_CODE_1(DT_INST_NODE_HAS_PROP(inst, drdy_gpios), \
(IIS2ICLX_CFG_IRQ(inst)), ()) \
}
#define IIS2ICLX_DEFINE_SPI(inst) \
static struct iis2iclx_data iis2iclx_data_##inst = \
IIS2ICLX_DATA_SPI(inst); \
static const struct iis2iclx_config iis2iclx_config_##inst = \
IIS2ICLX_CONFIG_SPI(inst); \
IIS2ICLX_DEVICE_INIT(inst)
/*
* Instantiation macros used when a device is on an I2C bus.
*/
#define IIS2ICLX_CONFIG_I2C(inst) \
{ \
.bus_name = DT_INST_BUS_LABEL(inst), \
.bus = DEVICE_DT_GET(DT_INST_BUS(inst)), \
.bus_init = iis2iclx_i2c_init, \
.bus_cfg = { .i2c_slv_addr = DT_INST_REG_ADDR(inst), }, \
.bus_cfg.i2c_slv_addr = DT_INST_REG_ADDR(inst), \
.odr = DT_INST_PROP(inst, odr), \
.range = DT_INST_PROP(inst, range), \
COND_CODE_1(DT_INST_NODE_HAS_PROP(inst, drdy_gpios), \
(IIS2ICLX_CFG_IRQ(inst)), ()) \
}
#define IIS2ICLX_DEFINE_I2C(inst) \
static struct iis2iclx_data iis2iclx_data_##inst; \
static const struct iis2iclx_config iis2iclx_config_##inst = \
IIS2ICLX_CONFIG_I2C(inst); \
IIS2ICLX_DEVICE_INIT(inst)
/*
* Main instantiation macro. Use of COND_CODE_1() selects the right
* bus-specific macro at preprocessor time.
*/
#define IIS2ICLX_DEFINE(inst) \
COND_CODE_1(DT_INST_ON_BUS(inst, spi), \
(IIS2ICLX_DEFINE_SPI(inst)), \
(IIS2ICLX_DEFINE_I2C(inst)))
static struct iis2iclx_data iis2iclx_data_##inst; \
static const struct iis2iclx_config iis2iclx_config_##inst = \
COND_CODE_1(DT_INST_ON_BUS(inst, spi), \
(IIS2ICLX_CONFIG_SPI(inst)), \
(IIS2ICLX_CONFIG_I2C(inst))); \
IIS2ICLX_DEVICE_INIT(inst)
DT_INST_FOREACH_STATUS_OKAY(IIS2ICLX_DEFINE)

15
drivers/sensor/iis2iclx/iis2iclx.h
View file

@ -35,25 +35,18 @@
#define SENSOR_DEG2RAD_DOUBLE (SENSOR_PI_DOUBLE / 180)
#define SENSOR_G_DOUBLE (SENSOR_G / 1000000.0)
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi)
struct iis2iclx_spi_cfg {
struct spi_config spi_conf;
const char *cs_gpios_label;
};
#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) */
union iis2iclx_bus_cfg {
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c)
uint16_t i2c_slv_addr;
#endif
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi)
const struct iis2iclx_spi_cfg *spi_cfg;
struct spi_config spi_cfg;
#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) */
};
struct iis2iclx_config {
char *bus_name;
const struct device *bus;
int (*bus_init)(const struct device *dev);
const union iis2iclx_bus_cfg bus_cfg;
uint8_t odr;
@ -119,10 +112,6 @@ struct iis2iclx_data {
struct k_work work;
#endif
#endif /* CONFIG_IIS2ICLX_TRIGGER */
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi)
struct spi_cs_control cs_ctrl;
#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) */
};
int iis2iclx_spi_init(const struct device *dev);

16
drivers/sensor/iis2iclx/iis2iclx_i2c.c
View file

@ -19,23 +19,21 @@
LOG_MODULE_DECLARE(IIS2ICLX, CONFIG_SENSOR_LOG_LEVEL);
static int iis2iclx_i2c_read(struct iis2iclx_data *data, uint8_t reg_addr,
static int iis2iclx_i2c_read(const struct device *dev, uint8_t reg_addr,
uint8_t *value, uint8_t len)
{
const struct device *dev = data->dev;
const struct iis2iclx_config *cfg = dev->config;
return i2c_burst_read(data->bus, cfg->bus_cfg.i2c_slv_addr,
return i2c_burst_read(cfg->bus, cfg->bus_cfg.i2c_slv_addr,
reg_addr, value, len);
}
static int iis2iclx_i2c_write(struct iis2iclx_data *data, uint8_t reg_addr,
static int iis2iclx_i2c_write(const struct device *dev, uint8_t reg_addr,
uint8_t *value, uint8_t len)
{
const struct device *dev = data->dev;
const struct iis2iclx_config *cfg = dev->config;
return i2c_burst_write(data->bus, cfg->bus_cfg.i2c_slv_addr,
return i2c_burst_write(cfg->bus, cfg->bus_cfg.i2c_slv_addr,
reg_addr, value, len);
}
@ -43,11 +41,11 @@ int iis2iclx_i2c_init(const struct device *dev)
{
struct iis2iclx_data *data = dev->data;
data->ctx_i2c.read_reg = (stmdev_read_ptr) iis2iclx_i2c_read,
data->ctx_i2c.write_reg = (stmdev_write_ptr) iis2iclx_i2c_write,
data->ctx_i2c.read_reg = (stmdev_read_ptr) iis2iclx_i2c_read;
data->ctx_i2c.write_reg = (stmdev_write_ptr) iis2iclx_i2c_write;
data->ctx = &data->ctx_i2c;
data->ctx->handle = data;
data->ctx->handle = (void *)dev;
return 0;
}

31
drivers/sensor/iis2iclx/iis2iclx_spi.c
View file

@ -20,12 +20,11 @@
LOG_MODULE_DECLARE(IIS2ICLX, CONFIG_SENSOR_LOG_LEVEL);
static int iis2iclx_spi_read(struct iis2iclx_data *data, uint8_t reg_addr,
static int iis2iclx_spi_read(const struct device *dev, uint8_t reg_addr,
uint8_t *value, uint8_t len)
{
const struct device *dev = data->dev;
const struct iis2iclx_config *cfg = dev->config;
const struct spi_config *spi_cfg = &cfg->bus_cfg.spi_cfg->spi_conf;
const struct spi_config *spi_cfg = &cfg->bus_cfg.spi_cfg;
uint8_t buffer_tx[2] = { reg_addr | IIS2ICLX_SPI_READ, 0 };
const struct spi_buf tx_buf = {
.buf = buffer_tx,
@ -55,19 +54,18 @@ static int iis2iclx_spi_read(struct iis2iclx_data *data, uint8_t reg_addr,
return -EIO;
}
if (spi_transceive(data->bus, spi_cfg, &tx, &rx)) {
if (spi_transceive(cfg->bus, spi_cfg, &tx, &rx)) {
return -EIO;
}
return 0;
}
static int iis2iclx_spi_write(struct iis2iclx_data *data, uint8_t reg_addr,
static int iis2iclx_spi_write(const struct device *dev, uint8_t reg_addr,
uint8_t *value, uint8_t len)
{
const struct device *dev = data->dev;
const struct iis2iclx_config *cfg = dev->config;
const struct spi_config *spi_cfg = &cfg->bus_cfg.spi_cfg->spi_conf;
const struct spi_config *spi_cfg = &cfg->bus_cfg.spi_cfg;
uint8_t buffer_tx[1] = { reg_addr & ~IIS2ICLX_SPI_READ };
const struct spi_buf tx_buf[2] = {
{
@ -89,7 +87,7 @@ static int iis2iclx_spi_write(struct iis2iclx_data *data, uint8_t reg_addr,
return -EIO;
}
if (spi_write(data->bus, spi_cfg, &tx)) {
if (spi_write(cfg->bus, spi_cfg, &tx)) {
return -EIO;
}
@ -99,27 +97,12 @@ static int iis2iclx_spi_write(struct iis2iclx_data *data, uint8_t reg_addr,
int iis2iclx_spi_init(const struct device *dev)
{
struct iis2iclx_data *data = dev->data;
const struct iis2iclx_config *cfg = dev->config;
const struct iis2iclx_spi_cfg *spi_cfg = cfg->bus_cfg.spi_cfg;
data->ctx_spi.read_reg = (stmdev_read_ptr) iis2iclx_spi_read;
data->ctx_spi.write_reg = (stmdev_write_ptr) iis2iclx_spi_write;
data->ctx = &data->ctx_spi;
data->ctx->handle = data;
if (spi_cfg->cs_gpios_label != NULL) {
/* handle SPI CS thru GPIO if it is the case */
data->cs_ctrl.gpio_dev =
device_get_binding(spi_cfg->cs_gpios_label);
if (!data->cs_ctrl.gpio_dev) {
LOG_ERR("Unable to get GPIO SPI CS device");
return -ENODEV;
}
LOG_DBG("SPI GPIO CS configured on %s:%u",
spi_cfg->cs_gpios_label, data->cs_ctrl.gpio_pin);
}
data->ctx->handle = (void *)dev;
return 0;
}