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Diffstat (limited to 'c/src/lib/libbsp/powerpc/virtex/console/consolelite.c')
-rw-r--r--c/src/lib/libbsp/powerpc/virtex/console/consolelite.c425
1 files changed, 0 insertions, 425 deletions
diff --git a/c/src/lib/libbsp/powerpc/virtex/console/consolelite.c b/c/src/lib/libbsp/powerpc/virtex/console/consolelite.c
deleted file mode 100644
index 4d0b2db17f..0000000000
--- a/c/src/lib/libbsp/powerpc/virtex/console/consolelite.c
+++ /dev/null
@@ -1,425 +0,0 @@
-/*
- * This file contains the console driver for the xilinx uart lite.
- *
- * Author: Keith Robertson <kjrobert@alumni.uwaterloo.ca>
- * COPYRIGHT (c) 2005 by Linn Products Ltd, Scotland.
- *
- * Derived from libbsp/no_cpu/no_bsp/console.c and therefore also:
- *
- * COPYRIGHT (c) 1989-1999.
- * On-Line Applications Research Corporation (OAR).
- *
- * 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/LICENSE.
- *
- */
-
-#include <assert.h>
-
-#include <rtems.h>
-#include <rtems/libio.h>
-#include <bsp/irq.h>
-
-#include <bsp.h>
-#include <libchip/serial.h>
-#include <libchip/sersupp.h>
-
-#include RTEMS_XPARAMETERS_H
-
-/* Status Register Masks */
-#define PARITY_ERROR 0x80 /* Parity Error */
-#define FRAME_ERROR 0x40 /* Frame Error */
-#define OVERRUN_ERROR 0x20 /* Overrun Error */
-#define STATUS_REG_ERROR_MASK ( PARITY_ERROR | FRAME_ERROR | OVERRUN_ERROR )
-
-#define INTR_ENABLED 0x10 /* Interrupts are enabled */
-#define TX_FIFO_FULL 0x08 /* Transmit FIFO is full */
-#define TX_FIFO_EMPTY 0x04 /* Transmit FIFO is empty */
-#define RX_FIFO_FULL 0x02 /* Receive FIFO is full */
-#define RX_FIFO_VALID_DATA 0x01 /* Receive FIFO has valid data */
-/* Control Register Masks*/
-#define ENABLE_INTR 0x10 /* Enable interrupts */
-#define RST_RX_FIFO 0x02 /* Reset and clear RX FIFO */
-#define RST_TX_FIFO 0x01 /* Reset and clear TX FIFO */
-
-/* General Defines */
-#define TX_FIFO_SIZE 16
-#define RX_FIFO_SIZE 16
-
-
-
-
-#define RECV_REG 0
-#define TRAN_REG 4
-#define STAT_REG 8
-#define CTRL_REG 12
-
-
-
-RTEMS_INLINE_ROUTINE uint32_t xlite_uart_control(uint32_t base)
-{
- uint32_t c = *((volatile uint32_t*)(base+CTRL_REG));
- return c;
-}
-
-
-RTEMS_INLINE_ROUTINE uint32_t xlite_uart_status(uint32_t base)
-{
- uint32_t c = *((volatile uint32_t*)(base+STAT_REG));
- return c;
-}
-
-
-RTEMS_INLINE_ROUTINE uint32_t xlite_uart_read(uint32_t base)
-{
- uint32_t c = *((volatile uint32_t*)(base+RECV_REG));
- return c;
-}
-
-
-RTEMS_INLINE_ROUTINE void xlite_uart_write(uint32_t base, char ch)
-{
- *(volatile uint32_t*)(base+TRAN_REG) = (uint32_t)ch;
- return;
-}
-
-
-
-static int xlite_write_char(uint32_t base, char ch)
-{
- uint32_t retrycount= 0, idler, status;
-
- while( ((status = xlite_uart_status(base)) & TX_FIFO_FULL) != 0 )
- {
- ++retrycount;
-
- /* uart tx is busy */
- if( retrycount == 0x4000 )
- {
- /* retrycount is arbitrary- just make it big enough so the uart is sure to be timed out before it trips */
- return -1;
- }
-
- /* spin for a bit so we can sample the register rather than
- * continually reading it */
- for( idler= 0; idler < 0x2000; idler++);
- }
-
- xlite_uart_write(base, ch);
-
- return 1;
-}
-
-static void xlite_init(int minor )
-{
- /* Nothing to do */
-}
-
-#if VIRTEX_CONSOLE_USE_INTERRUPTS
-static void xlite_interrupt_handler(void *arg)
-{
- int minor = (int) arg;
- const console_tbl *ct = Console_Port_Tbl[minor];
- console_data *cd = &Console_Port_Data[minor];
- uint32_t base = ct->ulCtrlPort1;
- uint32_t status = xlite_uart_status(base);
-
- while ((status & RX_FIFO_VALID_DATA) != 0) {
- char c = (char) xlite_uart_read(base);
-
- rtems_termios_enqueue_raw_characters(cd->termios_data, &c, 1);
-
- status = xlite_uart_status(base);
- }
-
- if (cd->bActive) {
- rtems_termios_dequeue_characters(cd->termios_data, 1);
- }
-}
-#endif /* VIRTEX_CONSOLE_USE_INTERRUPTS */
-
-static int xlite_open(
- int major,
- int minor,
- void *arg
-)
-{
- const console_tbl *ct = Console_Port_Tbl[minor];
- uint32_t base = ct->ulCtrlPort1;
-#if VIRTEX_CONSOLE_USE_INTERRUPTS
- rtems_status_code sc;
-#endif /* VIRTEX_CONSOLE_USE_INTERRUPTS */
-
- /* clear status register */
- *((volatile uint32_t*)(base+STAT_REG)) = 0;
-
- /* clear control register; reset fifos */
- *((volatile uint32_t*)(base+CTRL_REG)) = RST_RX_FIFO | RST_TX_FIFO;
-
-#if VIRTEX_CONSOLE_USE_INTERRUPTS
- *((volatile uint32_t*)(base+CTRL_REG)) = ENABLE_INTR;
-
- sc = rtems_interrupt_handler_install(
- ct->ulIntVector,
- "xlite",
- RTEMS_INTERRUPT_UNIQUE,
- xlite_interrupt_handler,
- (void *) minor
- );
- assert(sc == RTEMS_SUCCESSFUL);
-#endif /* VIRTEX_CONSOLE_USE_INTERRUPTS */
-
- return 0;
-}
-
-static int xlite_close(
- int major,
- int minor,
- void *arg
-)
-{
- const console_tbl *ct = Console_Port_Tbl[minor];
- uint32_t base = ct->ulCtrlPort1;
-#if VIRTEX_CONSOLE_USE_INTERRUPTS
- rtems_status_code sc;
-#endif /* VIRTEX_CONSOLE_USE_INTERRUPTS */
-
- *((volatile uint32_t*)(base+CTRL_REG)) = 0;
-
-#if VIRTEX_CONSOLE_USE_INTERRUPTS
- sc = rtems_interrupt_handler_remove(
- ct->ulIntVector,
- xlite_interrupt_handler,
- (void *) minor
- );
- assert(sc == RTEMS_SUCCESSFUL);
-#endif /* VIRTEX_CONSOLE_USE_INTERRUPTS */
-
- return 0;
-}
-
-
-
-static int xlite_read_polled (int minor )
-{
- uint32_t base = Console_Port_Tbl[minor]->ulCtrlPort1;
-
- unsigned int status = xlite_uart_status(base);
-
- if(status & RX_FIFO_VALID_DATA)
- return (int)xlite_uart_read(base);
- else
- return -1;
-}
-
-#if VIRTEX_CONSOLE_USE_INTERRUPTS
-
-static ssize_t xlite_write_interrupt_driven(
- int minor,
- const char *buf,
- size_t len
-)
-{
- console_data *cd = &Console_Port_Data[minor];
-
- if (len > 0) {
- const console_tbl *ct = Console_Port_Tbl[minor];
- uint32_t base = ct->ulCtrlPort1;
-
- xlite_uart_write(base, buf[0]);
-
- cd->bActive = true;
- } else {
- cd->bActive = false;
- }
-
- return 0;
-}
-
-#else /* VIRTEX_CONSOLE_USE_INTERRUPTS */
-
-static ssize_t xlite_write_buffer_polled(
- int minor,
- const char *buf,
- size_t len
-)
-{
- uint32_t base = Console_Port_Tbl[minor]->ulCtrlPort1;
- int nwrite = 0;
-
- /*
- * poll each byte in the string out of the port.
- */
- while (nwrite < len)
- {
- if( xlite_write_char(base, *buf++) < 0 ) break;
- nwrite++;
- }
-
- /*
- * return the number of bytes written.
- */
- return nwrite;
-}
-
-#endif /* VIRTEX_CONSOLE_USE_INTERRUPTS */
-
-static void xlite_write_char_polled(
- int minor,
- char c
-)
-{
- uint32_t base = Console_Port_Tbl[minor]->ulCtrlPort1;
- xlite_write_char(base, c);
- return;
-}
-
-static int xlite_set_attributes(int minor, const struct termios *t)
-{
- return RTEMS_SUCCESSFUL;
-}
-
-
-
-
-
-
-
-static const console_fns xlite_fns_polled =
-{
- .deviceProbe = libchip_serial_default_probe,
- .deviceFirstOpen = xlite_open,
- .deviceLastClose = xlite_close,
- .deviceRead = xlite_read_polled,
- .deviceInitialize = xlite_init,
- .deviceWritePolled = xlite_write_char_polled,
- .deviceSetAttributes = xlite_set_attributes,
-#if VIRTEX_CONSOLE_USE_INTERRUPTS
- .deviceWrite = xlite_write_interrupt_driven,
- .deviceOutputUsesInterrupts = true
-#else /* VIRTEX_CONSOLE_USE_INTERRUPTS */
- .deviceWrite = xlite_write_buffer_polled,
- .deviceOutputUsesInterrupts = false
-#endif /* VIRTEX_CONSOLE_USE_INTERRUPTS */
-};
-
-
-
-
-
-
-/*
-** Set ulCtrlPort1 to the base address of each UART Lite instance. Set in vhdl model.
-*/
-
-
-console_tbl Console_Configuration_Ports[] = {
-{
- "/dev/ttyS0", /* sDeviceName */
- SERIAL_CUSTOM, /* deviceType */
- &xlite_fns_polled, /* pDeviceFns */
- NULL, /* deviceProbe, assume it is there */
- NULL, /* pDeviceFlow */
- 16, /* ulMargin */
- 8, /* ulHysteresis */
- (void *) NULL, /* NULL */ /* pDeviceParams */
- STDIN_BASEADDRESS, /* ulCtrlPort1 */
- 0, /* ulCtrlPort2 */
- 0, /* ulDataPort */
- NULL, /* getRegister */
- NULL, /* setRegister */
- NULL, /* unused */ /* getData */
- NULL, /* unused */ /* setData */
- 0, /* ulClock */
- #ifdef XPAR_XPS_INTC_0_RS232_UART_INTERRUPT_INTR
- .ulIntVector = XPAR_XPS_INTC_0_RS232_UART_INTERRUPT_INTR
- #else
- .ulIntVector = 0
- #endif
-},
-#ifdef XPAR_UARTLITE_1_BASEADDR
-{
- "/dev/ttyS1", /* sDeviceName */
- SERIAL_CUSTOM, /* deviceType */
- &xlite_fns_polled, /* pDeviceFns */
- NULL, /* deviceProbe, assume it is there */
- NULL, /* pDeviceFlow */
- 16, /* ulMargin */
- 8, /* ulHysteresis */
- (void *) NULL, /* NULL */ /* pDeviceParams */
- XPAR_UARTLITE_1_BASEADDR, /* ulCtrlPort1 */
- 0, /* ulCtrlPort2 */
- 0, /* ulDataPort */
- NULL, /* getRegister */
- NULL, /* setRegister */
- NULL, /* unused */ /* getData */
- NULL, /* unused */ /* setData */
- 0, /* ulClock */
- 0 /* ulIntVector -- base for port */
-},
-#endif
-#ifdef XPAR_UARTLITE_2_BASEADDR
-{
- "/dev/ttyS2", /* sDeviceName */
- SERIAL_CUSTOM, /* deviceType */
- &xlite_fns_polled, /* pDeviceFns */
- NULL, /* deviceProbe, assume it is there */
- NULL, /* pDeviceFlow */
- 16, /* ulMargin */
- 8, /* ulHysteresis */
- (void *) NULL, /* NULL */ /* pDeviceParams */
- XPAR_UARTLITE_2_BASEADDR, /* ulCtrlPort1 */
- 0, /* ulCtrlPort2 */
- 0, /* ulDataPort */
- NULL, /* getRegister */
- NULL, /* setRegister */
- NULL, /* unused */ /* getData */
- NULL, /* unused */ /* setData */
- 0, /* ulClock */
- 0 /* ulIntVector -- base for port */
-},
-#endif
-#ifdef XPAR_UARTLITE_2_BASEADDR
-{
- "/dev/ttyS3", /* sDeviceName */
- SERIAL_CUSTOM, /* deviceType */
- &xlite_fns_polled, /* pDeviceFns */
- NULL, /* deviceProbe, assume it is there */
- NULL, /* pDeviceFlow */
- 16, /* ulMargin */
- 8, /* ulHysteresis */
- (void *) NULL, /* NULL */ /* pDeviceParams */
- XPAR_UARTLITE_3_BASEADDR, /* ulCtrlPort1 */
- 0, /* ulCtrlPort2 */
- 0, /* ulDataPort */
- NULL, /* getRegister */
- NULL, /* setRegister */
- NULL, /* unused */ /* getData */
- NULL, /* unused */ /* setData */
- 0, /* ulClock */
- 0 /* ulIntVector -- base for port */
-}
-#endif
-};
-
-unsigned long Console_Configuration_Count =
- RTEMS_ARRAY_SIZE(Console_Configuration_Ports);
-
-
-#include <rtems/bspIo.h>
-
-static void outputChar(char ch)
-{
- xlite_write_char_polled( 0, ch );
-}
-
-static int inputChar(void)
-{
- return xlite_read_polled(0);
-}
-
-BSP_output_char_function_type BSP_output_char = outputChar;
-BSP_polling_getchar_function_type BSP_poll_char = inputChar;
-
-
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