| /* |
| * Copyright (c) 2023 TOKITA Hiroshi <tokita.hiroshi@fujitsu.com> |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #define DT_DRV_COMPAT renesas_ra_uart_sci |
| |
| #include <zephyr/drivers/uart.h> |
| #include <zephyr/drivers/clock_control.h> |
| #include <zephyr/drivers/interrupt_controller/intc_ra_icu.h> |
| #include <zephyr/drivers/pinctrl.h> |
| #include <zephyr/irq.h> |
| #include <zephyr/spinlock.h> |
| |
| #include <zephyr/logging/log.h> |
| |
| LOG_MODULE_REGISTER(ra_uart_sci, CONFIG_UART_LOG_LEVEL); |
| |
| enum { |
| UART_RA_INT_RXI, |
| UART_RA_INT_TXI, |
| UART_RA_INT_ERI, |
| NUM_OF_UART_RA_INT, |
| }; |
| |
| struct uart_ra_cfg { |
| mem_addr_t regs; |
| const struct device *clock_dev; |
| clock_control_subsys_t clock_id; |
| const struct pinctrl_dev_config *pcfg; |
| #ifdef CONFIG_UART_INTERRUPT_DRIVEN |
| int (*irq_config_func)(const struct device *dev); |
| #endif |
| }; |
| |
| struct uart_ra_data { |
| struct uart_config current_config; |
| uint32_t clk_rate; |
| struct k_spinlock lock; |
| #ifdef CONFIG_UART_INTERRUPT_DRIVEN |
| uint32_t irqn[NUM_OF_UART_RA_INT]; |
| uart_irq_callback_user_data_t callback; |
| void *cb_data; |
| #endif |
| }; |
| |
| #define REG_MASK(reg) (BIT_MASK(_CONCAT(reg, _LEN)) << _CONCAT(reg, _POS)) |
| |
| /* Registers */ |
| #define SMR 0x00 /*!< Serial Mode Register */ |
| #define BRR 0x01 /*!< Bit Rate Register */ |
| #define SCR 0x02 /*!< Serial Control Register */ |
| #define TDR 0x03 /*!< Transmit Data Register */ |
| #define SSR 0x04 /*!< Serial Status Register */ |
| #define RDR 0x05 /*!< Receive Data Register */ |
| #define SEMR 0x07 /*!< Serial Extended Mode Register */ |
| #define MDDR 0x12 /*!< Modulation Duty Register */ |
| #define LSR 0x18 /*!< Line Status Register */ |
| |
| /* |
| * SMR (Serial Mode Register) |
| * |
| * - CKS[0..2]: Clock Select |
| * - MP[2..3]: Multi-Processor Mode(Valid only in asynchronous mode) |
| * - STOP[3..4]: Stop Bit Length(Valid only in asynchronous mode) |
| * - PM[4..5]: Parity Mode (Valid only when the PE bit is 1) |
| * - PE[5..6]: Parity Enable(Valid only in asynchronous mode) |
| * - CHR[6..7]: Character Length(Valid only in asynchronous mode) |
| * - CM[7..8]: Communication Mode |
| */ |
| #define SMR_CKS_POS (0) |
| #define SMR_CKS_LEN (2) |
| #define SMR_MP_POS (2) |
| #define SMR_MP_LEN (1) |
| #define SMR_STOP_POS (3) |
| #define SMR_STOP_LEN (1) |
| #define SMR_PM_POS (4) |
| #define SMR_PM_LEN (1) |
| #define SMR_PE_POS (5) |
| #define SMR_PE_LEN (1) |
| #define SMR_CHR_POS (6) |
| #define SMR_CHR_LEN (1) |
| #define SMR_CM_POS (7) |
| #define SMR_CM_LEN (1) |
| |
| /** |
| * SCR (Serial Control Register) |
| * |
| * - CKE[0..2]: Clock Enable |
| * - TEIE[2..3]: Transmit End Interrupt Enable |
| * - MPIE[3..4]: Multi-Processor Interrupt Enable (Valid in asynchronous |
| * - RE[4..5]: Receive Enable |
| * - TE[5..6]: Transmit Enable |
| * - RIE[6..7]: Receive Interrupt Enable |
| * - TIE[7..8]: Transmit Interrupt Enable |
| */ |
| #define SCR_CKE_POS (0) |
| #define SCR_CKE_LEN (2) |
| #define SCR_TEIE_POS (2) |
| #define SCR_TEIE_LEN (1) |
| #define SCR_MPIE_POS (3) |
| #define SCR_MPIE_LEN (1) |
| #define SCR_RE_POS (4) |
| #define SCR_RE_LEN (1) |
| #define SCR_TE_POS (5) |
| #define SCR_TE_LEN (1) |
| #define SCR_RIE_POS (6) |
| #define SCR_RIE_LEN (1) |
| #define SCR_TIE_POS (7) |
| #define SCR_TIE_LEN (1) |
| |
| /** |
| * SSR (Serial Status Register) |
| * |
| * - MPBT[0..1]: Multi-Processor Bit Transfer |
| * - MPB[1..2]: Multi-Processor |
| * - TEND[2..3]: Transmit End Flag |
| * - PER[3..4]: Parity Error Flag |
| * - FER[4..5]: Framing Error Flag |
| * - ORER[5..6]: Overrun Error Flag |
| * - RDRF[6..7]: Receive Data Full Flag |
| * - TDRE[7..8]: Transmit Data Empty Flag |
| */ |
| #define SSR_MPBT_POS (0) |
| #define SSR_MPBT_LEN (1) |
| #define SSR_MPB_POS (1) |
| #define SSR_MPB_LEN (1) |
| #define SSR_TEND_POS (2) |
| #define SSR_TEND_LEN (1) |
| #define SSR_PER_POS (3) |
| #define SSR_PER_LEN (1) |
| #define SSR_FER_POS (4) |
| #define SSR_FER_LEN (1) |
| #define SSR_ORER_POS (5) |
| #define SSR_ORER_LEN (1) |
| #define SSR_RDRF_POS (6) |
| #define SSR_RDRF_LEN (1) |
| #define SSR_TDRE_POS (7) |
| #define SSR_TDRE_LEN (1) |
| |
| /** |
| * SEMR (Serial Extended Mode Register) |
| * |
| * - ACS0[0..1]: Asynchronous Mode Clock Source Select |
| * - PADIS[1..2]: Preamble function Disable |
| * - BRME[2..3]: Bit Rate Modulation Enable |
| * - ABCSE[3..4]: Asynchronous Mode Extended Base Clock Select |
| * - ABCS[4..5]: Asynchronous Mode Base Clock Select |
| * - NFEN[5..6]: Digital Noise Filter Function Enable |
| * - BGDM[6..7]: Baud Rate Generator Double-Speed Mode Select |
| * - RXDESEL[7..8]: Asynchronous Start Bit Edge Detection Select |
| */ |
| #define SEMR_ACS0_POS (0) |
| #define SEMR_ACS0_LEN (1) |
| #define SEMR_PADIS_POS (1) |
| #define SEMR_PADIS_LEN (1) |
| #define SEMR_BRME_POS (2) |
| #define SEMR_BRME_LEN (1) |
| #define SEMR_ABCSE_POS (3) |
| #define SEMR_ABCSE_LEN (1) |
| #define SEMR_ABCS_POS (4) |
| #define SEMR_ABCS_LEN (1) |
| #define SEMR_NFEN_POS (5) |
| #define SEMR_NFEN_LEN (1) |
| #define SEMR_BGDM_POS (6) |
| #define SEMR_BGDM_LEN (1) |
| #define SEMR_RXDESEL_POS (7) |
| #define SEMR_RXDESEL_LEN (1) |
| |
| /** |
| * LSR (Line Status Register) |
| * |
| * - ORER[0..1]: Overrun Error Flag |
| * - FNUM[2..7]: Framing Error Count |
| * - PNUM[8..13]: Parity Error Count |
| */ |
| #define LSR_ORER_POS (0) |
| #define LSR_ORER_LEN (1) |
| #define LSR_FNUM_POS (2) |
| #define LSR_FNUM_LEN (5) |
| #define LSR_PNUM_POS (8) |
| #define LSR_PNUM_LEN (5) |
| |
| static uint8_t uart_ra_read_8(const struct device *dev, uint32_t offs) |
| { |
| const struct uart_ra_cfg *config = dev->config; |
| |
| return sys_read8(config->regs + offs); |
| } |
| |
| static void uart_ra_write_8(const struct device *dev, uint32_t offs, uint8_t value) |
| { |
| const struct uart_ra_cfg *config = dev->config; |
| |
| sys_write8(value, config->regs + offs); |
| } |
| |
| static uint16_t uart_ra_read_16(const struct device *dev, uint32_t offs) |
| { |
| const struct uart_ra_cfg *config = dev->config; |
| |
| return sys_read16(config->regs + offs); |
| } |
| |
| static void uart_ra_write_16(const struct device *dev, uint32_t offs, uint16_t value) |
| { |
| const struct uart_ra_cfg *config = dev->config; |
| |
| sys_write16(value, config->regs + offs); |
| } |
| |
| static void uart_ra_set_baudrate(const struct device *dev, uint32_t baud_rate) |
| { |
| struct uart_ra_data *data = dev->data; |
| uint8_t reg_val; |
| |
| reg_val = uart_ra_read_8(dev, SEMR); |
| reg_val |= (REG_MASK(SEMR_BGDM) | REG_MASK(SEMR_ABCS)); |
| reg_val &= ~(REG_MASK(SEMR_BRME) | REG_MASK(SEMR_ABCSE)); |
| uart_ra_write_8(dev, SEMR, reg_val); |
| |
| reg_val = (data->clk_rate / (8 * data->current_config.baudrate)) - 1; |
| uart_ra_write_8(dev, BRR, reg_val); |
| } |
| |
| static int uart_ra_poll_in(const struct device *dev, unsigned char *p_char) |
| { |
| struct uart_ra_data *data = dev->data; |
| int ret = 0; |
| |
| k_spinlock_key_t key = k_spin_lock(&data->lock); |
| |
| /* If interrupts are enabled, return -EINVAL */ |
| if ((uart_ra_read_8(dev, SCR) & REG_MASK(SCR_RIE))) { |
| ret = -EINVAL; |
| goto unlock; |
| } |
| |
| if ((uart_ra_read_8(dev, SSR) & REG_MASK(SSR_RDRF)) == 0) { |
| ret = -1; |
| goto unlock; |
| } |
| |
| *p_char = uart_ra_read_8(dev, RDR); |
| unlock: |
| k_spin_unlock(&data->lock, key); |
| |
| return ret; |
| } |
| |
| static void uart_ra_poll_out(const struct device *dev, unsigned char out_char) |
| { |
| struct uart_ra_data *data = dev->data; |
| uint8_t reg_val; |
| k_spinlock_key_t key = k_spin_lock(&data->lock); |
| |
| while (!(uart_ra_read_8(dev, SSR) & REG_MASK(SSR_TEND)) || |
| !(uart_ra_read_8(dev, SSR) & REG_MASK(SSR_TDRE))) { |
| ; |
| } |
| |
| /* If interrupts are enabled, temporarily disable them */ |
| reg_val = uart_ra_read_8(dev, SCR); |
| uart_ra_write_8(dev, SCR, reg_val & ~REG_MASK(SCR_TIE)); |
| |
| uart_ra_write_8(dev, TDR, out_char); |
| while (!(uart_ra_read_8(dev, SSR) & REG_MASK(SSR_TEND)) || |
| !(uart_ra_read_8(dev, SSR) & REG_MASK(SSR_TDRE))) { |
| ; |
| } |
| |
| uart_ra_write_8(dev, SCR, reg_val); |
| k_spin_unlock(&data->lock, key); |
| } |
| |
| static int uart_ra_err_check(const struct device *dev) |
| { |
| struct uart_ra_data *data = dev->data; |
| |
| uint8_t reg_val; |
| int errors = 0; |
| k_spinlock_key_t key; |
| |
| key = k_spin_lock(&data->lock); |
| reg_val = uart_ra_read_8(dev, SSR); |
| |
| if (reg_val & REG_MASK(SSR_PER)) { |
| errors |= UART_ERROR_PARITY; |
| } |
| |
| if (reg_val & REG_MASK(SSR_FER)) { |
| errors |= UART_ERROR_FRAMING; |
| } |
| |
| if (reg_val & REG_MASK(SSR_ORER)) { |
| errors |= UART_ERROR_OVERRUN; |
| } |
| |
| reg_val &= ~(REG_MASK(SSR_PER) | REG_MASK(SSR_FER) | REG_MASK(SSR_ORER)); |
| uart_ra_write_8(dev, SSR, reg_val); |
| |
| k_spin_unlock(&data->lock, key); |
| |
| return errors; |
| } |
| |
| static int uart_ra_configure(const struct device *dev, const struct uart_config *cfg) |
| { |
| struct uart_ra_data *data = dev->data; |
| |
| uint16_t reg_val; |
| k_spinlock_key_t key; |
| |
| if (cfg->parity != UART_CFG_PARITY_NONE || cfg->stop_bits != UART_CFG_STOP_BITS_1 || |
| cfg->data_bits != UART_CFG_DATA_BITS_8 || cfg->flow_ctrl != UART_CFG_FLOW_CTRL_NONE) { |
| return -ENOTSUP; |
| } |
| |
| key = k_spin_lock(&data->lock); |
| |
| /* Disable Transmit and Receive */ |
| reg_val = uart_ra_read_8(dev, SCR); |
| reg_val &= ~(REG_MASK(SCR_TE) | REG_MASK(SCR_RE)); |
| uart_ra_write_8(dev, SCR, reg_val); |
| |
| /* Resetting Errors Registers */ |
| reg_val = uart_ra_read_8(dev, SSR); |
| reg_val &= ~(REG_MASK(SSR_PER) | REG_MASK(SSR_FER) | REG_MASK(SSR_ORER) | |
| REG_MASK(SSR_RDRF) | REG_MASK(SSR_TDRE)); |
| uart_ra_write_8(dev, SSR, reg_val); |
| |
| reg_val = uart_ra_read_16(dev, LSR); |
| reg_val &= ~(REG_MASK(LSR_ORER)); |
| uart_ra_write_16(dev, LSR, reg_val); |
| |
| /* Select internal clock */ |
| reg_val = uart_ra_read_8(dev, SCR); |
| reg_val &= ~(REG_MASK(SCR_CKE)); |
| uart_ra_write_8(dev, SCR, reg_val); |
| |
| /* Serial Configuration (8N1) & Clock divider selection */ |
| reg_val = uart_ra_read_8(dev, SMR); |
| reg_val &= ~(REG_MASK(SMR_CM) | REG_MASK(SMR_CHR) | REG_MASK(SMR_PE) | REG_MASK(SMR_PM) | |
| REG_MASK(SMR_STOP) | REG_MASK(SMR_CKS)); |
| uart_ra_write_8(dev, SMR, reg_val); |
| |
| /* Set baudrate */ |
| uart_ra_set_baudrate(dev, cfg->baudrate); |
| |
| /* Enable Transmit & Receive + disable Interrupts */ |
| reg_val = uart_ra_read_8(dev, SCR); |
| reg_val |= (REG_MASK(SCR_TE) | REG_MASK(SCR_RE)); |
| reg_val &= |
| ~(REG_MASK(SCR_TIE) | REG_MASK(SCR_RIE) | REG_MASK(SCR_MPIE) | REG_MASK(SCR_TEIE)); |
| uart_ra_write_8(dev, SCR, reg_val); |
| |
| data->current_config = *cfg; |
| |
| k_spin_unlock(&data->lock, key); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_UART_USE_RUNTIME_CONFIGURE |
| static int uart_ra_config_get(const struct device *dev, struct uart_config *cfg) |
| { |
| struct uart_ra_data *data = dev->data; |
| |
| *cfg = data->current_config; |
| |
| return 0; |
| } |
| #endif /* CONFIG_UART_USE_RUNTIME_CONFIGURE */ |
| |
| static int uart_ra_init(const struct device *dev) |
| { |
| const struct uart_ra_cfg *config = dev->config; |
| struct uart_ra_data *data = dev->data; |
| int ret; |
| |
| /* Configure dt provided device signals when available */ |
| ret = pinctrl_apply_state(config->pcfg, PINCTRL_STATE_DEFAULT); |
| if (ret < 0) { |
| return ret; |
| } |
| |
| if (!device_is_ready(config->clock_dev)) { |
| return -ENODEV; |
| } |
| |
| ret = clock_control_on(config->clock_dev, config->clock_id); |
| if (ret < 0) { |
| return ret; |
| } |
| |
| ret = clock_control_get_rate(config->clock_dev, config->clock_id, &data->clk_rate); |
| if (ret < 0) { |
| return ret; |
| } |
| |
| ret = uart_ra_configure(dev, &data->current_config); |
| if (ret != 0) { |
| return ret; |
| } |
| |
| #ifdef CONFIG_UART_INTERRUPT_DRIVEN |
| ret = config->irq_config_func(dev); |
| if (ret != 0) { |
| return ret; |
| } |
| #endif |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_UART_INTERRUPT_DRIVEN |
| |
| static bool uart_ra_irq_is_enabled(const struct device *dev, uint32_t irq) |
| { |
| return uart_ra_read_8(dev, SCR) & irq; |
| } |
| |
| static int uart_ra_fifo_fill(const struct device *dev, const uint8_t *tx_data, int len) |
| { |
| struct uart_ra_data *data = dev->data; |
| uint8_t reg_val; |
| k_spinlock_key_t key; |
| |
| if (len <= 0 || tx_data == NULL) { |
| return 0; |
| } |
| |
| key = k_spin_lock(&data->lock); |
| reg_val = uart_ra_read_8(dev, SCR); |
| reg_val &= ~(REG_MASK(SCR_TIE)); |
| uart_ra_write_8(dev, SCR, reg_val); |
| |
| uart_ra_write_8(dev, TDR, tx_data[0]); |
| |
| reg_val |= REG_MASK(SCR_TIE); |
| uart_ra_write_8(dev, SCR, reg_val); |
| |
| k_spin_unlock(&data->lock, key); |
| |
| return 1; |
| } |
| |
| static int uart_ra_fifo_read(const struct device *dev, uint8_t *rx_data, const int size) |
| { |
| uint8_t data; |
| |
| if (size <= 0) { |
| return 0; |
| } |
| |
| if ((uart_ra_read_8(dev, SSR) & REG_MASK(SSR_RDRF)) == 0) { |
| return 0; |
| } |
| |
| data = uart_ra_read_8(dev, RDR); |
| |
| if (rx_data) { |
| rx_data[0] = data; |
| } |
| |
| return 1; |
| } |
| |
| static void uart_ra_irq_tx_enable(const struct device *dev) |
| { |
| struct uart_ra_data *data = dev->data; |
| k_spinlock_key_t key; |
| uint16_t reg_val; |
| |
| key = k_spin_lock(&data->lock); |
| |
| reg_val = uart_ra_read_8(dev, SCR); |
| reg_val |= (REG_MASK(SCR_TIE)); |
| uart_ra_write_8(dev, SCR, reg_val); |
| |
| irq_enable(data->irqn[UART_RA_INT_TXI]); |
| |
| k_spin_unlock(&data->lock, key); |
| } |
| |
| static void uart_ra_irq_tx_disable(const struct device *dev) |
| { |
| struct uart_ra_data *data = dev->data; |
| k_spinlock_key_t key; |
| uint16_t reg_val; |
| |
| key = k_spin_lock(&data->lock); |
| |
| reg_val = uart_ra_read_8(dev, SCR); |
| reg_val &= ~(REG_MASK(SCR_TIE)); |
| uart_ra_write_8(dev, SCR, reg_val); |
| |
| irq_disable(data->irqn[UART_RA_INT_TXI]); |
| |
| k_spin_unlock(&data->lock, key); |
| } |
| |
| static int uart_ra_irq_tx_ready(const struct device *dev) |
| { |
| const uint8_t reg_val = uart_ra_read_8(dev, SSR); |
| const uint8_t mask = REG_MASK(SSR_TEND) & REG_MASK(SSR_TDRE); |
| |
| return (reg_val & mask) == mask; |
| } |
| |
| static void uart_ra_irq_rx_enable(const struct device *dev) |
| { |
| struct uart_ra_data *data = dev->data; |
| k_spinlock_key_t key; |
| uint16_t reg_val; |
| |
| key = k_spin_lock(&data->lock); |
| |
| reg_val = uart_ra_read_8(dev, SCR); |
| reg_val |= REG_MASK(SCR_RIE); |
| uart_ra_write_8(dev, SCR, reg_val); |
| |
| irq_enable(data->irqn[UART_RA_INT_RXI]); |
| |
| k_spin_unlock(&data->lock, key); |
| } |
| |
| static void uart_ra_irq_rx_disable(const struct device *dev) |
| { |
| struct uart_ra_data *data = dev->data; |
| k_spinlock_key_t key; |
| uint16_t reg_val; |
| |
| key = k_spin_lock(&data->lock); |
| |
| reg_val = uart_ra_read_8(dev, SCR); |
| reg_val &= ~REG_MASK(SCR_RIE); |
| uart_ra_write_8(dev, SCR, reg_val); |
| |
| irq_disable(data->irqn[UART_RA_INT_RXI]); |
| |
| k_spin_unlock(&data->lock, key); |
| } |
| |
| static int uart_ra_irq_rx_ready(const struct device *dev) |
| { |
| return !!(uart_ra_read_8(dev, SSR) & REG_MASK(SSR_RDRF)); |
| } |
| |
| static void uart_ra_irq_err_enable(const struct device *dev) |
| { |
| struct uart_ra_data *data = dev->data; |
| |
| irq_enable(data->irqn[UART_RA_INT_ERI]); |
| } |
| |
| static void uart_ra_irq_err_disable(const struct device *dev) |
| { |
| struct uart_ra_data *data = dev->data; |
| |
| irq_disable(data->irqn[UART_RA_INT_ERI]); |
| } |
| |
| static int uart_ra_irq_is_pending(const struct device *dev) |
| { |
| return (uart_ra_irq_rx_ready(dev) && uart_ra_irq_is_enabled(dev, REG_MASK(SCR_RIE))) || |
| (uart_ra_irq_tx_ready(dev) && uart_ra_irq_is_enabled(dev, REG_MASK(SCR_TIE))); |
| } |
| |
| static int uart_ra_irq_update(const struct device *dev) |
| { |
| return 1; |
| } |
| |
| static void uart_ra_irq_callback_set(const struct device *dev, uart_irq_callback_user_data_t cb, |
| void *cb_data) |
| { |
| struct uart_ra_data *data = dev->data; |
| |
| data->callback = cb; |
| data->cb_data = cb_data; |
| } |
| |
| /** |
| * @brief Interrupt service routine. |
| * |
| * This simply calls the callback function, if one exists. |
| * |
| * @param arg Argument to ISR. |
| */ |
| static inline void uart_ra_isr(const struct device *dev) |
| { |
| struct uart_ra_data *data = dev->data; |
| |
| if (data->callback) { |
| data->callback(dev, data->cb_data); |
| } |
| } |
| |
| static void uart_ra_isr_rxi(const void *param) |
| { |
| const struct device *dev = param; |
| struct uart_ra_data *data = dev->data; |
| |
| uart_ra_isr(dev); |
| ra_icu_clear_int_flag(data->irqn[UART_RA_INT_RXI]); |
| } |
| |
| static void uart_ra_isr_txi(const void *param) |
| { |
| const struct device *dev = param; |
| struct uart_ra_data *data = dev->data; |
| |
| uart_ra_isr(dev); |
| ra_icu_clear_int_flag(data->irqn[UART_RA_INT_TXI]); |
| } |
| |
| static void uart_ra_isr_eri(const void *param) |
| { |
| const struct device *dev = param; |
| struct uart_ra_data *data = dev->data; |
| |
| uart_ra_isr(dev); |
| ra_icu_clear_int_flag(data->irqn[UART_RA_INT_ERI]); |
| } |
| |
| #endif /* CONFIG_UART_INTERRUPT_DRIVEN */ |
| |
| static const struct uart_driver_api uart_ra_driver_api = { |
| .poll_in = uart_ra_poll_in, |
| .poll_out = uart_ra_poll_out, |
| .err_check = uart_ra_err_check, |
| #ifdef CONFIG_UART_USE_RUNTIME_CONFIGURE |
| .configure = uart_ra_configure, |
| .config_get = uart_ra_config_get, |
| #endif |
| #ifdef CONFIG_UART_INTERRUPT_DRIVEN |
| .fifo_fill = uart_ra_fifo_fill, |
| .fifo_read = uart_ra_fifo_read, |
| .irq_tx_enable = uart_ra_irq_tx_enable, |
| .irq_tx_disable = uart_ra_irq_tx_disable, |
| .irq_tx_ready = uart_ra_irq_tx_ready, |
| .irq_rx_enable = uart_ra_irq_rx_enable, |
| .irq_rx_disable = uart_ra_irq_rx_disable, |
| .irq_rx_ready = uart_ra_irq_rx_ready, |
| .irq_err_enable = uart_ra_irq_err_enable, |
| .irq_err_disable = uart_ra_irq_err_disable, |
| .irq_is_pending = uart_ra_irq_is_pending, |
| .irq_update = uart_ra_irq_update, |
| .irq_callback_set = uart_ra_irq_callback_set, |
| #endif /* CONFIG_UART_INTERRUPT_DRIVEN */ |
| }; |
| |
| /* Device Instantiation */ |
| #define UART_RA_INIT_CFG(n) \ |
| PINCTRL_DT_DEFINE(DT_INST_PARENT(n)); \ |
| static const struct uart_ra_cfg uart_ra_cfg_##n = { \ |
| .regs = DT_REG_ADDR(DT_INST_PARENT(n)), \ |
| .clock_dev = DEVICE_DT_GET(DT_CLOCKS_CTLR(DT_INST_PARENT(n))), \ |
| .clock_id = \ |
| (clock_control_subsys_t)DT_CLOCKS_CELL_BY_IDX(DT_INST_PARENT(n), 0, id), \ |
| .pcfg = PINCTRL_DT_DEV_CONFIG_GET(DT_INST_PARENT(n)), \ |
| IF_ENABLED(CONFIG_UART_INTERRUPT_DRIVEN, ( \ |
| .irq_config_func = irq_config_func_##n, \ |
| )) \ |
| } |
| |
| #ifdef CONFIG_UART_INTERRUPT_DRIVEN |
| |
| #define RA_IRQ_CONNECT_DYNAMIC(n, name, dev, isr) \ |
| ra_icu_irq_connect_dynamic(DT_IRQ_BY_NAME(DT_INST_PARENT(n), name, irq), \ |
| DT_IRQ_BY_NAME(DT_INST_PARENT(n), name, priority), isr, dev, \ |
| DT_IRQ_BY_NAME(DT_INST_PARENT(n), name, flags)); |
| |
| #define RA_IRQ_DISCONNECT_DYNAMIC(n, name, dev, isr) \ |
| ra_icu_irq_disconnect_dynamic(irqn, 0, NULL, NULL, 0) |
| |
| #define UART_RA_CONFIG_FUNC(n) \ |
| static int irq_config_func_##n(const struct device *dev) \ |
| { \ |
| struct uart_ra_data *data = dev->data; \ |
| int irqn; \ |
| \ |
| irqn = RA_IRQ_CONNECT_DYNAMIC(n, rxi, dev, uart_ra_isr_rxi); \ |
| if (irqn < 0) { \ |
| return irqn; \ |
| } \ |
| data->irqn[UART_RA_INT_RXI] = irqn; \ |
| irqn = RA_IRQ_CONNECT_DYNAMIC(n, txi, dev, uart_ra_isr_txi); \ |
| if (irqn < 0) { \ |
| goto err_txi; \ |
| } \ |
| data->irqn[UART_RA_INT_TXI] = irqn; \ |
| irqn = RA_IRQ_CONNECT_DYNAMIC(n, eri, dev, uart_ra_isr_eri); \ |
| if (irqn < 0) { \ |
| goto err_eri; \ |
| } \ |
| data->irqn[UART_RA_INT_ERI] = irqn; \ |
| return 0; \ |
| \ |
| err_eri: \ |
| RA_IRQ_DISCONNECT_DYNAMIC(data->irq[UART_RA_INT_TXI], eri, dev, uart_ra_isr_eri); \ |
| err_txi: \ |
| RA_IRQ_DISCONNECT_DYNAMIC(data->irq[UART_RA_INT_RXI], txi, dev, uart_ra_isr_txi); \ |
| \ |
| return irqn; \ |
| } |
| #else |
| #define UART_RA_CONFIG_FUNC(n) |
| #endif |
| |
| #define UART_RA_INIT(n) \ |
| UART_RA_CONFIG_FUNC(n) \ |
| UART_RA_INIT_CFG(n); \ |
| \ |
| static struct uart_ra_data uart_ra_data_##n = { \ |
| .current_config = { \ |
| .baudrate = DT_INST_PROP(n, current_speed), \ |
| .parity = UART_CFG_PARITY_NONE, \ |
| .stop_bits = UART_CFG_STOP_BITS_1, \ |
| .data_bits = UART_CFG_DATA_BITS_8, \ |
| .flow_ctrl = UART_CFG_FLOW_CTRL_NONE, \ |
| }, \ |
| }; \ |
| \ |
| DEVICE_DT_INST_DEFINE(n, uart_ra_init, NULL, &uart_ra_data_##n, &uart_ra_cfg_##n, \ |
| PRE_KERNEL_1, CONFIG_SERIAL_INIT_PRIORITY, &uart_ra_driver_api); |
| |
| DT_INST_FOREACH_STATUS_OKAY(UART_RA_INIT) |
