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zephyr/drivers/serial/uart_mcux.c
Andrzej Głąbek 20202902f2 dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig 
These changes were obtained by running a script  created by
Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following
specification:

1. Read the contents of all dts_fixup.h files in Zephyr
2. Check the left-hand side of the #define macros (i.e. the X in
   #define X Y)
3. Check if that name is also the name of a Kconfig option
   3.a If it is, then do nothing
   3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it
       has neither of these two prefixes
4. Replace the use of the changed #define in the code itself
   (.c, .h, .ld)

Additionally, some tweaks had to be added to this script to catch some
of the macros used in the code in a parameterized form, e.g.:
- CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS
- CONFIG_UART_##idx##_TX_PIN
- I2C_SBCON_##_num##_BASE_ADDR
and to prevent adding DT_ prefix to the following symbols:
- FLASH_START
- FLASH_SIZE
- SRAM_START
- SRAM_SIZE
- _ROM_ADDR
- _ROM_SIZE
- _RAM_ADDR
- _RAM_SIZE
which are surprisingly also defined in some dts_fixup.h files.

Finally, some manual corrections had to be done as well:
- name##_IRQ -> DT_##name##_IRQ in uart_stm32.c

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 10:44:42 -06:00

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/*
* Copyright (c) 2017, NXP
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <errno.h>
#include <device.h>
#include <uart.h>
#include <clock_control.h>
#include <fsl_uart.h>
#include <soc.h>
struct uart_mcux_config {
UART_Type *base;
char *clock_name;
clock_control_subsys_t clock_subsys;
u32_t baud_rate;
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
void (*irq_config_func)(struct device *dev);
#endif
};
struct uart_mcux_data {
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
uart_irq_callback_user_data_t callback;
void *cb_data;
#endif
};
static int uart_mcux_poll_in(struct device *dev, unsigned char *c)
{
const struct uart_mcux_config *config = dev->config->config_info;
u32_t flags = UART_GetStatusFlags(config->base);
int ret = -1;
if (flags & kUART_RxDataRegFullFlag) {
*c = UART_ReadByte(config->base);
ret = 0;
}
return ret;
}
static unsigned char uart_mcux_poll_out(struct device *dev, unsigned char c)
{
const struct uart_mcux_config *config = dev->config->config_info;
while (!(UART_GetStatusFlags(config->base) & kUART_TxDataRegEmptyFlag))
;
UART_WriteByte(config->base, c);
return c;
}
static int uart_mcux_err_check(struct device *dev)
{
const struct uart_mcux_config *config = dev->config->config_info;
u32_t flags = UART_GetStatusFlags(config->base);
int err = 0;
if (flags & kUART_RxOverrunFlag) {
err |= UART_ERROR_OVERRUN;
}
if (flags & kUART_ParityErrorFlag) {
err |= UART_ERROR_PARITY;
}
if (flags & kUART_FramingErrorFlag) {
err |= UART_ERROR_FRAMING;
}
UART_ClearStatusFlags(config->base, kUART_RxOverrunFlag |
kUART_ParityErrorFlag |
kUART_FramingErrorFlag);
return err;
}
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static int uart_mcux_fifo_fill(struct device *dev, const u8_t *tx_data,
int len)
{
const struct uart_mcux_config *config = dev->config->config_info;
u8_t num_tx = 0;
while ((len - num_tx > 0) &&
(UART_GetStatusFlags(config->base) & kUART_TxDataRegEmptyFlag)) {
UART_WriteByte(config->base, tx_data[num_tx++]);
}
return num_tx;
}
static int uart_mcux_fifo_read(struct device *dev, u8_t *rx_data,
const int len)
{
const struct uart_mcux_config *config = dev->config->config_info;
u8_t num_rx = 0;
while ((len - num_rx > 0) &&
(UART_GetStatusFlags(config->base) & kUART_RxDataRegFullFlag)) {
rx_data[num_rx++] = UART_ReadByte(config->base);
}
return num_rx;
}
static void uart_mcux_irq_tx_enable(struct device *dev)
{
const struct uart_mcux_config *config = dev->config->config_info;
u32_t mask = kUART_TxDataRegEmptyInterruptEnable;
UART_EnableInterrupts(config->base, mask);
}
static void uart_mcux_irq_tx_disable(struct device *dev)
{
const struct uart_mcux_config *config = dev->config->config_info;
u32_t mask = kUART_TxDataRegEmptyInterruptEnable;
UART_DisableInterrupts(config->base, mask);
}
static int uart_mcux_irq_tx_complete(struct device *dev)
{
const struct uart_mcux_config *config = dev->config->config_info;
u32_t flags = UART_GetStatusFlags(config->base);
return (flags & kUART_TxDataRegEmptyFlag) != 0;
}
static int uart_mcux_irq_tx_ready(struct device *dev)
{
const struct uart_mcux_config *config = dev->config->config_info;
u32_t mask = kUART_TxDataRegEmptyInterruptEnable;
return (UART_GetEnabledInterrupts(config->base) & mask)
&& uart_mcux_irq_tx_complete(dev);
}
static void uart_mcux_irq_rx_enable(struct device *dev)
{
const struct uart_mcux_config *config = dev->config->config_info;
u32_t mask = kUART_RxDataRegFullInterruptEnable;
UART_EnableInterrupts(config->base, mask);
}
static void uart_mcux_irq_rx_disable(struct device *dev)
{
const struct uart_mcux_config *config = dev->config->config_info;
u32_t mask = kUART_RxDataRegFullInterruptEnable;
UART_DisableInterrupts(config->base, mask);
}
static int uart_mcux_irq_rx_full(struct device *dev)
{
const struct uart_mcux_config *config = dev->config->config_info;
u32_t flags = UART_GetStatusFlags(config->base);
return (flags & kUART_RxDataRegFullFlag) != 0;
}
static int uart_mcux_irq_rx_ready(struct device *dev)
{
const struct uart_mcux_config *config = dev->config->config_info;
u32_t mask = kUART_RxDataRegFullInterruptEnable;
return (UART_GetEnabledInterrupts(config->base) & mask)
&& uart_mcux_irq_rx_full(dev);
}
static void uart_mcux_irq_err_enable(struct device *dev)
{
const struct uart_mcux_config *config = dev->config->config_info;
u32_t mask = kUART_NoiseErrorInterruptEnable |
kUART_FramingErrorInterruptEnable |
kUART_ParityErrorInterruptEnable;
UART_EnableInterrupts(config->base, mask);
}
static void uart_mcux_irq_err_disable(struct device *dev)
{
const struct uart_mcux_config *config = dev->config->config_info;
u32_t mask = kUART_NoiseErrorInterruptEnable |
kUART_FramingErrorInterruptEnable |
kUART_ParityErrorInterruptEnable;
UART_DisableInterrupts(config->base, mask);
}
static int uart_mcux_irq_is_pending(struct device *dev)
{
return uart_mcux_irq_tx_ready(dev) || uart_mcux_irq_rx_ready(dev);
}
static int uart_mcux_irq_update(struct device *dev)
{
return 1;
}
static void uart_mcux_irq_callback_set(struct device *dev,
uart_irq_callback_user_data_t cb,
void *cb_data)
{
struct uart_mcux_data *data = dev->driver_data;
data->callback = cb;
data->cb_data = cb_data;
}
static void uart_mcux_isr(void *arg)
{
struct device *dev = arg;
struct uart_mcux_data *data = dev->driver_data;
if (data->callback) {
data->callback(data->cb_data);
}
}
#endif /* CONFIG_UART_INTERRUPT_DRIVEN */
static int uart_mcux_init(struct device *dev)
{
const struct uart_mcux_config *config = dev->config->config_info;
uart_config_t uart_config;
struct device *clock_dev;
u32_t clock_freq;
clock_dev = device_get_binding(config->clock_name);
if (clock_dev == NULL) {
return -EINVAL;
}
if (clock_control_get_rate(clock_dev, config->clock_subsys,
&clock_freq)) {
return -EINVAL;
}
UART_GetDefaultConfig(&uart_config);
uart_config.enableTx = true;
uart_config.enableRx = true;
uart_config.baudRate_Bps = config->baud_rate;
UART_Init(config->base, &uart_config, clock_freq);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
config->irq_config_func(dev);
#endif
return 0;
}
static const struct uart_driver_api uart_mcux_driver_api = {
.poll_in = uart_mcux_poll_in,
.poll_out = uart_mcux_poll_out,
.err_check = uart_mcux_err_check,
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.fifo_fill = uart_mcux_fifo_fill,
.fifo_read = uart_mcux_fifo_read,
.irq_tx_enable = uart_mcux_irq_tx_enable,
.irq_tx_disable = uart_mcux_irq_tx_disable,
.irq_tx_complete = uart_mcux_irq_tx_complete,
.irq_tx_ready = uart_mcux_irq_tx_ready,
.irq_rx_enable = uart_mcux_irq_rx_enable,
.irq_rx_disable = uart_mcux_irq_rx_disable,
.irq_rx_ready = uart_mcux_irq_rx_ready,
.irq_err_enable = uart_mcux_irq_err_enable,
.irq_err_disable = uart_mcux_irq_err_disable,
.irq_is_pending = uart_mcux_irq_is_pending,
.irq_update = uart_mcux_irq_update,
.irq_callback_set = uart_mcux_irq_callback_set,
#endif
};
#ifdef CONFIG_UART_MCUX_0
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_mcux_config_func_0(struct device *dev);
#endif
static const struct uart_mcux_config uart_mcux_0_config = {
.base = UART0,
.clock_name = DT_UART_MCUX_0_CLOCK_NAME,
.clock_subsys = (clock_control_subsys_t)DT_UART_MCUX_0_CLOCK_SUBSYS,
.baud_rate = DT_UART_MCUX_0_BAUD_RATE,
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.irq_config_func = uart_mcux_config_func_0,
#endif
};
static struct uart_mcux_data uart_mcux_0_data;
DEVICE_AND_API_INIT(uart_0, DT_UART_MCUX_0_NAME,
&uart_mcux_init,
&uart_mcux_0_data, &uart_mcux_0_config,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
&uart_mcux_driver_api);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_mcux_config_func_0(struct device *dev)
{
IRQ_CONNECT(DT_UART_MCUX_0_IRQ_STATUS,
DT_UART_MCUX_0_IRQ_STATUS_PRI,
uart_mcux_isr, DEVICE_GET(uart_0), 0);
irq_enable(DT_UART_MCUX_0_IRQ_STATUS);
IRQ_CONNECT(DT_UART_MCUX_0_IRQ_ERROR,
DT_UART_MCUX_0_IRQ_ERROR_PRI,
uart_mcux_isr, DEVICE_GET(uart_0), 0);
irq_enable(DT_UART_MCUX_0_IRQ_ERROR);
}
#endif
#endif /* CONFIG_UART_MCUX_0 */
#ifdef CONFIG_UART_MCUX_1
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_mcux_config_func_1(struct device *dev);
#endif
static const struct uart_mcux_config uart_mcux_1_config = {
.base = UART1,
.clock_name = DT_UART_MCUX_1_CLOCK_NAME,
.clock_subsys = (clock_control_subsys_t)DT_UART_MCUX_1_CLOCK_SUBSYS,
.baud_rate = DT_UART_MCUX_1_BAUD_RATE,
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.irq_config_func = uart_mcux_config_func_1,
#endif
};
static struct uart_mcux_data uart_mcux_1_data;
DEVICE_AND_API_INIT(uart_1, DT_UART_MCUX_1_NAME,
&uart_mcux_init,
&uart_mcux_1_data, &uart_mcux_1_config,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
&uart_mcux_driver_api);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_mcux_config_func_1(struct device *dev)
{
IRQ_CONNECT(DT_UART_MCUX_1_IRQ_STATUS,
DT_UART_MCUX_1_IRQ_STATUS_PRI,
uart_mcux_isr, DEVICE_GET(uart_1), 0);
irq_enable(DT_UART_MCUX_1_IRQ_STATUS);
IRQ_CONNECT(DT_UART_MCUX_1_IRQ_ERROR,
DT_UART_MCUX_1_IRQ_ERROR_PRI,
uart_mcux_isr, DEVICE_GET(uart_1), 0);
irq_enable(DT_UART_MCUX_1_IRQ_ERROR);
}
#endif
#endif /* CONFIG_UART_MCUX_1 */
#ifdef CONFIG_UART_MCUX_2
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_mcux_config_func_2(struct device *dev);
#endif
static const struct uart_mcux_config uart_mcux_2_config = {
.base = UART2,
.clock_name = DT_UART_MCUX_2_CLOCK_NAME,
.clock_subsys = (clock_control_subsys_t)DT_UART_MCUX_2_CLOCK_SUBSYS,
.baud_rate = DT_UART_MCUX_2_BAUD_RATE,
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.irq_config_func = uart_mcux_config_func_2,
#endif
};
static struct uart_mcux_data uart_mcux_2_data;
DEVICE_AND_API_INIT(uart_2, DT_UART_MCUX_2_NAME,
&uart_mcux_init,
&uart_mcux_2_data, &uart_mcux_2_config,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
&uart_mcux_driver_api);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_mcux_config_func_2(struct device *dev)
{
IRQ_CONNECT(DT_UART_MCUX_2_IRQ_STATUS,
DT_UART_MCUX_2_IRQ_STATUS_PRI,
uart_mcux_isr, DEVICE_GET(uart_2), 0);
irq_enable(DT_UART_MCUX_2_IRQ_STATUS);
IRQ_CONNECT(DT_UART_MCUX_2_IRQ_ERROR,
DT_UART_MCUX_2_IRQ_ERROR_PRI,
uart_mcux_isr, DEVICE_GET(uart_2), 0);
irq_enable(DT_UART_MCUX_2_IRQ_ERROR);
}
#endif
#endif /* CONFIG_UART_MCUX_2 */
#ifdef CONFIG_UART_MCUX_3
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_mcux_config_func_3(struct device *dev);
#endif
static const struct uart_mcux_config uart_mcux_3_config = {
.base = UART3,
.clock_name = DT_UART_MCUX_3_CLOCK_NAME,
.clock_subsys = (clock_control_subsys_t)DT_UART_MCUX_3_CLOCK_SUBSYS,
.baud_rate = DT_UART_MCUX_3_BAUD_RATE,
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.irq_config_func = uart_mcux_config_func_3,
#endif
};
static struct uart_mcux_data uart_mcux_3_data;
DEVICE_AND_API_INIT(uart_3, DT_UART_MCUX_3_NAME,
&uart_mcux_init,
&uart_mcux_3_data, &uart_mcux_3_config,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
&uart_mcux_driver_api);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_mcux_config_func_3(struct device *dev)
{
IRQ_CONNECT(DT_UART_MCUX_3_IRQ_STATUS,
DT_UART_MCUX_3_IRQ_STATUS_PRI,
uart_mcux_isr, DEVICE_GET(uart_3), 0);
irq_enable(DT_UART_MCUX_3_IRQ_STATUS);
IRQ_CONNECT(DT_UART_MCUX_3_IRQ_ERROR,
DT_UART_MCUX_3_IRQ_ERROR_PRI,
uart_mcux_isr, DEVICE_GET(uart_3), 0);
irq_enable(DT_UART_MCUX_3_IRQ_ERROR);
}
#endif
#endif /* CONFIG_UART_MCUX_3 */
#ifdef CONFIG_UART_MCUX_4
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_mcux_config_func_4(struct device *dev);
#endif
static const struct uart_mcux_config uart_mcux_4_config = {
.base = UART4,
.clock_name = DT_UART_MCUX_4_CLOCK_NAME,
.clock_subsys = (clock_control_subsys_t)DT_UART_MCUX_4_CLOCK_SUBSYS,
.baud_rate = DT_UART_MCUX_4_BAUD_RATE,
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.irq_config_func = uart_mcux_config_func_4,
#endif
};
static struct uart_mcux_data uart_mcux_4_data;
DEVICE_AND_API_INIT(uart_4, DT_UART_MCUX_4_NAME,
&uart_mcux_init,
&uart_mcux_4_data, &uart_mcux_4_config,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
&uart_mcux_driver_api);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_mcux_config_func_4(struct device *dev)
{
IRQ_CONNECT(DT_UART_MCUX_4_IRQ_STATUS,
DT_UART_MCUX_4_IRQ_STATUS_PRI,
uart_mcux_isr, DEVICE_GET(uart_4), 0);
irq_enable(DT_UART_MCUX_4_IRQ_STATUS);
IRQ_CONNECT(DT_UART_MCUX_4_IRQ_ERROR,
DT_UART_MCUX_4_IRQ_ERROR_PRI,
uart_mcux_isr, DEVICE_GET(uart_4), 0);
irq_enable(DT_UART_MCUX_4_IRQ_ERROR);
}
#endif
#endif /* CONFIG_UART_MCUX_4 */
#ifdef CONFIG_UART_MCUX_5
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_mcux_config_func_5(struct device *dev);
#endif
static const struct uart_mcux_config uart_mcux_5_config = {
.base = UART5,
.clock_name = DT_UART_MCUX_5_CLOCK_NAME,
.clock_subsys = (clock_control_subsys_t)DT_UART_MCUX_5_CLOCK_SUBSYS,
.baud_rate = DT_UART_MCUX_5_BAUD_RATE,
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.irq_config_func = uart_mcux_config_func_5,
#endif
};
static struct uart_mcux_data uart_mcux_5_data;
DEVICE_AND_API_INIT(uart_5, DT_UART_MCUX_5_NAME,
&uart_mcux_init,
&uart_mcux_5_data, &uart_mcux_5_config,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
&uart_mcux_driver_api);
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static void uart_mcux_config_func_5(struct device *dev)
{
IRQ_CONNECT(DT_UART_MCUX_5_IRQ_STATUS,
DT_UART_MCUX_5_IRQ_STATUS_PRI,
uart_mcux_isr, DEVICE_GET(uart_5), 0);
irq_enable(DT_UART_MCUX_5_IRQ_STATUS);
IRQ_CONNECT(DT_UART_MCUX_5_IRQ_ERROR,
DT_UART_MCUX_5_IRQ_ERROR_PRI,
uart_mcux_isr, DEVICE_GET(uart_5), 0);
irq_enable(DT_UART_MCUX_5_IRQ_ERROR);
}
#endif
#endif /* CONFIG_UART_MCUX_5 */
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