diff options
Diffstat (limited to 'bsps/bfin/TLL6527M/console/console.c')
-rw-r--r-- | bsps/bfin/TLL6527M/console/console.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/bsps/bfin/TLL6527M/console/console.c b/bsps/bfin/TLL6527M/console/console.c new file mode 100644 index 0000000000..1871bdbb9d --- /dev/null +++ b/bsps/bfin/TLL6527M/console/console.c @@ -0,0 +1,181 @@ +/** + *@file console.c + * + *@brief + * - This file implements uart console for TLL6527M. TLL6527M has BF527 with + * second uart (uart-1) connected to the console. + * + * Target: TLL6527v1-0 + * Compiler: + * + * COPYRIGHT (c) 2010 by ECE Northeastern University. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license + * + * @author Rohan Kangralkar, ECE, Northeastern University + * (kangralkar.r@husky.neu.edu) + * + * LastChange: + */ + +#include <rtems.h> +#include <rtems/libio.h> +#include <bsp.h> +#include <rtems/bspIo.h> +#include <rtems/console.h> + +#include <bsp/interrupt.h> +#include <libcpu/uart.h> + +/*************************************************** +LOCAL DEFINES + ***************************************************/ + + +/*************************************************** +STATIC GLOBALS + ***************************************************/ +/** + * Declaration of UART + */ +static bfin_uart_channel_t channels[] = { + {"/dev/console", + UART1_BASE_ADDRESS, + DMA10_BASE_ADDRESS, + DMA11_BASE_ADDRESS, + CONSOLE_USE_INTERRUPTS, + UART_USE_DMA, + CONSOLE_BAUDRATE, + NULL, + 0, + 0} +}; + +/** + * Over all configuration + */ +static bfin_uart_config_t config = { + SCLK, + sizeof(channels) / sizeof(channels[0]), + channels +}; + + +#if CONSOLE_USE_INTERRUPTS +/** + * The Rx and Tx isr will get the same argument + * The isr will have to find if it was the rx that caused the interrupt or + * the tx + */ +static bfin_isr_t bfinUARTISRs[] = { +#if UART_USE_DMA + /* For First uart */ + {IRQ_DMA10_UART1_RX, bfinUart_rxDmaIsr, (void *)&channels[0], 0}, + {IRQ_DMA11_UART1_TX, bfinUart_txDmaIsr, (void *)&channels[0], 0}, + /* For second uart */ +#else + /* For First uart */ + {IRQ_DMA10_UART1_RX, bfinUart_rxIsr, &channels[0], 0}, + {IRQ_DMA11_UART1_TX, bfinUart_txIsr, &channels[0], 0}, + /* For second uart */ +#endif +}; +#endif + + +static void TLL6527_BSP_output_char(char c) { + + bfin_uart_poll_write(0, c); +} + +static int TLL6527_BSP_poll_char(void) { + + return bfin_uart_poll_read(0); +} + +BSP_output_char_function_type BSP_output_char = TLL6527_BSP_output_char; +BSP_polling_getchar_function_type BSP_poll_char = TLL6527_BSP_poll_char; + + + +rtems_device_driver console_close(rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg) { + + return rtems_termios_close(arg); +} + +rtems_device_driver console_read(rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg) { + + return rtems_termios_read(arg); +} + +rtems_device_driver console_write(rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg) { + + return rtems_termios_write(arg); +} + +rtems_device_driver console_control(rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg) { + + return rtems_termios_ioctl(arg); +} + + + +/* + * Open entry point + */ +rtems_device_driver console_open(rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg) { + + return bfin_uart_open(major, minor, arg); +} + + + +/** + * + * This routine initializes the console IO driver. + * + * Parameters + * @param major major number + * @param minor minor number + * + * Output parameters: NONE + * + * @return void + */ +rtems_device_driver console_initialize(rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg) { + rtems_status_code status = RTEMS_NOT_DEFINED; +#if CONSOLE_USE_INTERRUPTS + int i = 0; +#endif + + status = bfin_uart_initialize(major, &config); + if (status != RTEMS_SUCCESSFUL) { + rtems_fatal_error_occurred(status); + } + +#if CONSOLE_USE_INTERRUPTS + for (i = 0; i < sizeof(bfinUARTISRs) / sizeof(bfinUARTISRs[0]); i++) { + bfin_interrupt_register(&bfinUARTISRs[i]); +#if INTERRUPT_USE_TABLE +#else + bfin_interrupt_enable(&bfinUARTISRs[i], 1); +#endif + } +#endif + + return RTEMS_SUCCESSFUL; +} |