From 50c8cbe1d50d39911848c180bf9fd1fa0fddd89c Mon Sep 17 00:00:00 2001 From: Grissiom Date: Wed, 29 May 2013 17:26:34 +0800 Subject: [PATCH] rm48x50: now it has console --- bsp/rm48x50/application/application.c | 7 +- bsp/rm48x50/drivers/board.c | 19 +-- bsp/rm48x50/drivers/drv_uart.h | 6 + bsp/rm48x50/drivers/uart.c | 204 ++++++++++++++++++++++++++ bsp/rm48x50/rtconfig.h | 2 +- 5 files changed, 226 insertions(+), 12 deletions(-) create mode 100644 bsp/rm48x50/drivers/drv_uart.h create mode 100644 bsp/rm48x50/drivers/uart.c diff --git a/bsp/rm48x50/application/application.c b/bsp/rm48x50/application/application.c index 8df987ac06..fe3d34bf81 100644 --- a/bsp/rm48x50/application/application.c +++ b/bsp/rm48x50/application/application.c @@ -28,11 +28,14 @@ static rt_uint8_t user_thread_stack[512]; static struct rt_thread user_thread; static void user_thread_entry(void *p) { + int i; + gioSetDirection(hetPORT1, 0xFFFFFFFF); - for(;;) + + for(i = 0; ;i++) { + rt_kprintf("loop %d\n", i); gioSetBit(hetPORT1, 17, gioGetBit(hetPORT1, 17) ^ 1); - /* Taggle HET[1] with timer tick */ /*sciSendByte(scilinREG, 'b');*/ rt_thread_delay(100); /*sciSendByte(scilinREG, 'a');*/ diff --git a/bsp/rm48x50/drivers/board.c b/bsp/rm48x50/drivers/board.c index 2cd1f9ceb5..2ff930ce11 100644 --- a/bsp/rm48x50/drivers/board.c +++ b/bsp/rm48x50/drivers/board.c @@ -1,7 +1,7 @@ /* * File : board.c * This file is part of RT-Thread RTOS - * COPYRIGHT (C) 2006, RT-Thread Develop Team + * COPYRIGHT (C) 2013, RT-Thread Develop Team * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at @@ -9,7 +9,7 @@ * * Change Logs: * Date Author Notes - * 2008-12-11 xuxinming first version + * 2013-05-27 Grissiom port to RM48x50 */ #include @@ -17,11 +17,12 @@ #include "sys_common.h" #include "system.h" -#include "sci.h" #include "rti.h" #include "board.h" +#include "drv_uart.h" + #define RTI_INT_VEC 6 void rt_timer_handler(int vector, void* param) @@ -30,17 +31,17 @@ void rt_timer_handler(int vector, void* param) rt_tick_increase(); } -/** - * This function will init LPC2478 board - */ void rt_hw_board_init(void) { - sciInit(); rtiInit(); - rtiStartCounter(rtiCOUNTER_BLOCK1); - rtiEnableNotification(rtiNOTIFICATION_COMPARE3); rt_hw_interrupt_install(RTI_INT_VEC, rt_timer_handler, RT_NULL, "tick"); rt_hw_interrupt_umask(RTI_INT_VEC); + + rtiStartCounter(rtiCOUNTER_BLOCK1); + rtiEnableNotification(rtiNOTIFICATION_COMPARE3); + + rt_hw_uart_init(); + rt_console_set_device(RT_CONSOLE_DEVICE_NAME); } diff --git a/bsp/rm48x50/drivers/drv_uart.h b/bsp/rm48x50/drivers/drv_uart.h new file mode 100644 index 0000000000..8bfa1489e5 --- /dev/null +++ b/bsp/rm48x50/drivers/drv_uart.h @@ -0,0 +1,6 @@ +#ifndef DRV_UART_H +#define DRV_UART_H + +void rt_hw_uart_init(void); + +#endif /* end of include guard: DRV_UART_H */ diff --git a/bsp/rm48x50/drivers/uart.c b/bsp/rm48x50/drivers/uart.c new file mode 100644 index 0000000000..ced1cb7c75 --- /dev/null +++ b/bsp/rm48x50/drivers/uart.c @@ -0,0 +1,204 @@ +/* + * File : uart.c + * This file is part of RT-Thread RTOS + * COPYRIGHT (C) 2013, RT-Thread Develop Team + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://openlab.rt-thread.com/license/LICENSE + * + * Change Logs: + * Date Author Notes + * 2013-05-27 Grissiom port to RM48x50 + */ + +/* welcome, if you open this file, you may want to see uart driver code. + * However, TI call it Serial Communication Interface(SCI) and all the low + * level API is prefixed by "sci". To avoid messive renaming, I want to keep + * with TI and call all the things SCI. You could safely substitude the word + * "sci" with "uart". Enjoy. */ + +#include +#include +#include + +#include + +/* bring from sci.h */ +enum sciIntFlags +{ + SCI_FE_INT = 0x04000000U, /* framing error */ + SCI_OE_INT = 0x02000000U, /* overrun error */ + SCI_PE_INT = 0x01000000U, /* parity error */ + SCI_RX_INT = 0x00000200U, /* receive buffer ready */ + SCI_TX_INT = 0x00000100U, /* transmit buffer ready */ + SCI_WAKE_INT = 0x00000002U, /* wakeup */ + SCI_BREAK_INT = 0x00000001U /* break detect */ +}; + +/* LIN1 High level interrupt. Change this if you set a different channel in + * HALCoGen. */ +#define SCI_INT_VEC 13 + +#define VCLK_HZ 100000000L + +static rt_err_t _configure(struct rt_serial_device *serial, struct serial_configure *cfg) +{ + /** - global control 1 */ + rt_uint32_t gcr1 = (1U << 25U) /* enable transmit */ + | (1U << 24U) /* enable receive */ + | (1U << 5U) /* internal clock (device has no clock pin) */ + | (1U << 1U); /* asynchronous timing mode */ + if (cfg->stop_bits == STOP_BITS_2) + gcr1 |= (1U << 4U); /* number of stop bits */ + else if (cfg->stop_bits != STOP_BITS_1) + return -RT_ERROR; + + if (cfg->parity == PARITY_EVEN) + { + gcr1 |= (1U << 3U) | (1U << 2U); + } + else if (cfg->parity == PARITY_ODD) + { + gcr1 |= (0U << 3U) | (1U << 2U); + } + + /** - bring SCI out of reset */ + scilinREG->GCR0 = 1U; + + /** - Disable all interrupts */ + scilinREG->CLRINT = 0xFFFFFFFFU; + scilinREG->CLRINTLVL = 0xFFFFFFFFU; + + scilinREG->GCR1 = gcr1; + + /** - set baudrate */ + scilinREG->BRS = VCLK_HZ/16/cfg->baud_rate - 1; /* baudrate */ + + /** - transmission length */ + scilinREG->FORMAT = cfg->data_bits - 1; /* length */ + + /** - set SCI pins functional mode */ + scilinREG->FUN = (1U << 2U) /* tx pin */ + | (1U << 1U) /* rx pin */ + | (0U); /* clk pin */ + + /** - set SCI pins default output value */ + scilinREG->DOUT = (0U << 2U) /* tx pin */ + | (0U << 1U) /* rx pin */ + | (0U); /* clk pin */ + + /** - set SCI pins output direction */ + scilinREG->DIR = (0U << 2U) /* tx pin */ + | (0U << 1U) /* rx pin */ + | (0U); /* clk pin */ + + /** - set SCI pins open drain enable */ + scilinREG->ODR = (0U << 2U) /* tx pin */ + | (0U << 1U) /* rx pin */ + | (0U); /* clk pin */ + + /** - set SCI pins pullup/pulldown enable */ + scilinREG->PD = (0U << 2U) /* tx pin */ + | (0U << 1U) /* rx pin */ + | (0U); /* clk pin */ + + /** - set SCI pins pullup/pulldown select */ + scilinREG->PSL = (1U << 2U) /* tx pin */ + | (1U << 1U) /* rx pin */ + | (1U); /* clk pin */ + + /** - set interrupt level */ + scilinREG->SETINTLVL = (0U << 26U) /* Framing error */ + | (0U << 25U) /* Overrun error */ + | (0U << 24U) /* Parity error */ + | (0U << 9U) /* Receive */ + | (0U << 8U) /* Transmit */ + | (0U << 1U) /* Wakeup */ + | (0U); /* Break detect */ + + /** - set interrupt enable */ + scilinREG->SETINT = (0U << 26U) /* Framing error */ + | (0U << 25U) /* Overrun error */ + | (0U << 24U) /* Parity error */ + | (1U << 9U) /* Receive */ + | (0U << 1U) /* Wakeup */ + | (0U); /* Break detect */ + + /** - Finaly start SCILIN */ + scilinREG->GCR1 |= (1U << 7U); + + return RT_EOK; +} + +static rt_err_t _control(struct rt_serial_device *serial, int cmd, void *arg) +{ + sciBASE_t *sci = (sciBASE_t*)serial->parent.user_data; + + switch (cmd) + { + case RT_DEVICE_CTRL_CLR_INT: + /* disable rx irq */ + sci->CLRINT = SCI_RX_INT; + break; + case RT_DEVICE_CTRL_SET_INT: + /* enable rx irq */ + sci->SETINT = SCI_RX_INT; + break; + } + + return RT_EOK; +} + +static int _putc(struct rt_serial_device *serial, char c) +{ + sciBASE_t *sci = (sciBASE_t*)serial->parent.user_data; + while ((sci->FLR & SCI_TX_INT) == 0U) + ; + sci->TD = c; + return 1; +} + +static int _getc(struct rt_serial_device *serial) +{ + sciBASE_t *sci = (sciBASE_t*)serial->parent.user_data; + if (sci->FLR & (1<<9)) + return (sci->RD & 0x000000FFU); + else + return -1; +} + +static const struct rt_uart_ops _sci_ops = +{ + _configure, + _control, + _putc, + _getc, +}; + +static struct rt_serial_device _sci2_serial; +static struct serial_ringbuffer _sci2_int_rx; + +void rt_hw_uart_init(void) +{ + struct serial_configure config; + + /* fake configuration */ + config.baud_rate = BAUD_RATE_115200; + config.bit_order = BIT_ORDER_LSB; + config.data_bits = DATA_BITS_8; + config.parity = PARITY_NONE; + config.stop_bits = STOP_BITS_1; + config.invert = NRZ_NORMAL; + + _sci2_serial.ops = &_sci_ops; + _sci2_serial.int_rx = &_sci2_int_rx; + _sci2_serial.config = config; + + rt_hw_serial_register(&_sci2_serial, "sci2", + RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM, + (void*)scilinREG); + + rt_hw_interrupt_install(SCI_INT_VEC, rt_hw_serial_isr, &_sci2_serial, "sci2"); + rt_hw_interrupt_umask(SCI_INT_VEC); +} diff --git a/bsp/rm48x50/rtconfig.h b/bsp/rm48x50/rtconfig.h index 2efd82ae68..abc3711e50 100644 --- a/bsp/rm48x50/rtconfig.h +++ b/bsp/rm48x50/rtconfig.h @@ -79,7 +79,7 @@ // #define RT_CONSOLEBUF_SIZE 128 // -#define RT_CONSOLE_DEVICE_NAME "uart0" +#define RT_CONSOLE_DEVICE_NAME "sci2" // //