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/openrisc/trunk/rtos/ecos-2.0/packages/devs/serial/sparclite/sleb/v2_0/src
- from Rev 27 to Rev 174
- ↔ Reverse comparison
Rev 27 → Rev 174
/sleb_sdtr.c
0,0 → 1,401
//========================================================================== |
// |
// io/serial/sparclite/sleb_sdtr.c |
// |
// Serial I/O interface module for SPARClite Eval Board (SLEB) |
// |
//========================================================================== |
//####ECOSGPLCOPYRIGHTBEGIN#### |
// ------------------------------------------- |
// This file is part of eCos, the Embedded Configurable Operating System. |
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. |
// |
// eCos is free software; you can redistribute it and/or modify it under |
// the terms of the GNU General Public License as published by the Free |
// Software Foundation; either version 2 or (at your option) any later version. |
// |
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY |
// WARRANTY; without even the implied warranty of MERCHANTABILITY or |
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
// for more details. |
// |
// You should have received a copy of the GNU General Public License along |
// with eCos; if not, write to the Free Software Foundation, Inc., |
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
// |
// As a special exception, if other files instantiate templates or use macros |
// or inline functions from this file, or you compile this file and link it |
// with other works to produce a work based on this file, this file does not |
// by itself cause the resulting work to be covered by the GNU General Public |
// License. However the source code for this file must still be made available |
// in accordance with section (3) of the GNU General Public License. |
// |
// This exception does not invalidate any other reasons why a work based on |
// this file might be covered by the GNU General Public License. |
// |
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. |
// at http://sources.redhat.com/ecos/ecos-license/ |
// ------------------------------------------- |
//####ECOSGPLCOPYRIGHTEND#### |
//========================================================================== |
//#####DESCRIPTIONBEGIN#### |
// |
// Author(s): gthomas |
// Contributors: gthomas |
// Date: 1999-02-04 |
// Purpose: SLEB serial I/O module |
// Description: |
// |
//####DESCRIPTIONEND#### |
// |
//========================================================================== |
|
#include <pkgconf/io.h> |
#include <pkgconf/io_serial.h> |
#include <cyg/io/io.h> |
#include <cyg/hal/hal_intr.h> |
#include <cyg/io/devtab.h> |
#include <cyg/io/serial.h> |
|
#ifdef CYGPKG_IO_SERIAL_SPARCLITE_SLEB |
|
#include "sleb_sdtr.h" |
|
extern void diag_printf(const char *fmt, ...); |
|
#define BUFSIZE 128 |
|
typedef struct sleb_sdtr_info { |
CYG_ADDRWORD base; |
CYG_WORD tx_int_num; |
CYG_WORD rx_int_num; |
cyg_interrupt tx_serial_interrupt; |
cyg_handle_t tx_serial_interrupt_handle; |
cyg_interrupt rx_serial_interrupt; |
cyg_handle_t rx_serial_interrupt_handle; |
cyg_uint8 cmd_reg; |
bool xmit_enabled; |
} sleb_sdtr_info; |
|
static bool sleb_sdtr_init(struct cyg_devtab_entry *tab); |
static bool sleb_sdtr_putc(serial_channel *chan, unsigned char c); |
static Cyg_ErrNo sleb_sdtr_lookup(struct cyg_devtab_entry **tab, |
struct cyg_devtab_entry *sub_tab, |
const char *name); |
static unsigned char sleb_sdtr_getc(serial_channel *chan); |
static Cyg_ErrNo sleb_sdtr_set_config(serial_channel *chan, cyg_uint32 key, |
const void *xbuf, cyg_uint32 *len); |
static void sleb_sdtr_start_xmit(serial_channel *chan); |
static void sleb_sdtr_stop_xmit(serial_channel *chan); |
|
static cyg_uint32 sleb_sdtr_tx_ISR(cyg_vector_t vector, cyg_addrword_t data); |
static void sleb_sdtr_tx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data); |
static cyg_uint32 sleb_sdtr_rx_ISR(cyg_vector_t vector, cyg_addrword_t data); |
static void sleb_sdtr_rx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data); |
|
static SERIAL_FUNS(sleb_sdtr_funs, |
sleb_sdtr_putc, |
sleb_sdtr_getc, |
sleb_sdtr_set_config, |
sleb_sdtr_start_xmit, |
sleb_sdtr_stop_xmit |
); |
|
#ifdef CYGPKG_IO_SERIAL_SPARCLITE_SLEB_CON1 |
static sleb_sdtr_info sleb_sdtr_info0 = {SLEB_SDTR0_BASE, SLEB_SDTR0_TX_INT, SLEB_SDTR0_RX_INT}; |
#if CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON1_BUFSIZE > 0 |
static unsigned char sleb_sdtr_out_buf0[CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON1_BUFSIZE]; |
static unsigned char sleb_sdtr_in_buf0[CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON1_BUFSIZE]; |
|
static SERIAL_CHANNEL_USING_INTERRUPTS(sleb_sdtr_channel0, |
sleb_sdtr_funs, |
sleb_sdtr_info0, |
CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON1_BAUD), |
CYG_SERIAL_STOP_DEFAULT, |
CYG_SERIAL_PARITY_DEFAULT, |
CYG_SERIAL_WORD_LENGTH_DEFAULT, |
CYG_SERIAL_FLAGS_DEFAULT, |
&sleb_sdtr_out_buf0[0], sizeof(sleb_sdtr_out_buf0), |
&sleb_sdtr_in_buf0[0], sizeof(sleb_sdtr_in_buf0) |
); |
#else |
static SERIAL_CHANNEL(sleb_sdtr_channel0, |
sleb_sdtr_funs, |
sleb_sdtr_info0, |
CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON1_BAUD), |
CYG_SERIAL_STOP_DEFAULT, |
CYG_SERIAL_PARITY_DEFAULT, |
CYG_SERIAL_WORD_LENGTH_DEFAULT, |
CYG_SERIAL_FLAGS_DEFAULT |
); |
#endif |
|
DEVTAB_ENTRY(sleb_sdtr_io0, |
CYGDAT_IO_SERIAL_SPARCLITE_SLEB_CON1_NAME, |
0, // Does not depend on a lower level interface |
&cyg_io_serial_devio, |
sleb_sdtr_init, |
sleb_sdtr_lookup, // Serial driver may need initializing |
&sleb_sdtr_channel0 |
); |
#endif // CYGPKG_IO_SERIAL_SPARCLITE_SLEB_CON1 |
|
#ifdef CYGPKG_IO_SERIAL_SPARCLITE_SLEB_CON2 |
static sleb_sdtr_info sleb_sdtr_info1 = {SLEB_SDTR1_BASE, SLEB_SDTR1_TX_INT, SLEB_SDTR1_RX_INT}; |
#if CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON2_BUFSIZE > 0 |
static unsigned char sleb_sdtr_out_buf1[CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON2_BUFSIZE]; |
static unsigned char sleb_sdtr_in_buf1[CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON2_BUFSIZE]; |
|
static SERIAL_CHANNEL_USING_INTERRUPTS(sleb_sdtr_channel1, |
sleb_sdtr_funs, |
sleb_sdtr_info1, |
CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON2_BAUD), |
CYG_SERIAL_STOP_DEFAULT, |
CYG_SERIAL_PARITY_DEFAULT, |
CYG_SERIAL_WORD_LENGTH_DEFAULT, |
CYG_SERIAL_FLAGS_DEFAULT, |
&sleb_sdtr_out_buf1[0], sizeof(sleb_sdtr_out_buf1), |
&sleb_sdtr_in_buf1[0], sizeof(sleb_sdtr_in_buf1) |
); |
#else |
static SERIAL_CHANNEL(sleb_sdtr_channel1, |
sleb_sdtr_funs, |
sleb_sdtr_info1, |
CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON2_BAUD), |
CYG_SERIAL_STOP_DEFAULT, |
CYG_SERIAL_PARITY_DEFAULT, |
CYG_SERIAL_WORD_LENGTH_DEFAULT, |
CYG_SERIAL_FLAGS_DEFAULT |
); |
#endif |
|
DEVTAB_ENTRY(sleb_sdtr_io1, |
CYGDAT_IO_SERIAL_SPARCLITE_SLEB_CON2_NAME, |
0, // Does not depend on a lower level interface |
&cyg_io_serial_devio, |
sleb_sdtr_init, |
sleb_sdtr_lookup, // Serial driver may need initializing |
&sleb_sdtr_channel1 |
); |
#endif // CYGPKG_IO_SERIAL_SPARCLITE_SLEB_CON2 |
|
// Internal function to actually configure the hardware to desired baud rate, etc. |
static bool |
sleb_sdtr_config_port(serial_channel *chan, cyg_serial_info_t *new_config, bool init) |
{ |
sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv; |
CYG_ADDRWORD port = sdtr_chan->base; |
cyg_int32 baud_divisor; |
cyg_int32 clk, tval; |
unsigned char mode; |
#if 0 |
if ((new_config->baud < CYGNUM_SERIAL_BAUD_MIN) || (new_config->baud > CYGNUM_SERIAL_BAUD_MAX)) |
return false; // Invalid baud rate |
#endif |
baud_divisor = select_baud[new_config->baud]; |
if (baud_divisor == 0) |
return false; // Unsupported baud rate |
// Reset the port |
HAL_SPARC_86940_WRITE(SDTR_CONTROL(port), SDTR_CMD_RST); |
// Write the mode |
mode = SDTR_MODE_MODE_ASYNC16 | |
select_word_length[new_config->word_length - CYGNUM_SERIAL_WORD_LENGTH_5] | |
select_stop_bits[new_config->stop] | |
select_parity[new_config->parity]; |
HAL_SPARC_86940_WRITE(SDTR_CONTROL(port), mode); |
// Set baud rate clock. |
// ***** CAUTION! Both ports use the same time, thus they must both run at the same baud rate! |
clk = *SLEB_CLOCK_SWITCH; // Compute board speed |
if (clk & 0x80) clk = 10; |
clk = (clk & 0x3F) * 1000000; // in MHz |
tval = (clk / (baud_divisor * 32)) - 1; |
HAL_SPARC_86940_WRITE(SLEB_TIMER3_RELOAD, tval); |
// Set up control register |
sdtr_chan->cmd_reg = SDTR_CMD_RTS | SDTR_CMD_DTR | SDTR_CMD_TxEN; |
#ifdef CYGPKG_IO_SERIAL_SPARCLITE_SLEB_CON1 |
// Cygmon needs the receiver |
if ((chan->out_cbuf.len != 0) || (chan == &sleb_sdtr_channel0)) { |
#else |
if (chan->out_cbuf.len != 0) { |
#endif |
sdtr_chan->cmd_reg |= SDTR_CMD_RxEN; |
} |
if (init) { |
sdtr_chan->xmit_enabled = false; |
} |
HAL_SPARC_86940_WRITE(SDTR_CONTROL(port), sdtr_chan->cmd_reg); |
if (new_config != &chan->config) |
chan->config = *new_config; |
return true; |
} |
|
// Function to initialize the device. Called at bootstrap time. |
static bool |
sleb_sdtr_init(struct cyg_devtab_entry *tab) |
{ |
serial_channel *chan = (serial_channel *)tab->priv; |
sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv; |
#ifdef CYGDBG_IO_INIT |
diag_printf("SLEB SERIAL init - dev: %x.%d.%d\n", sdtr_chan->base, sdtr_chan->tx_int_num, sdtr_chan->rx_int_num); |
#endif |
(chan->callbacks->serial_init)(chan); // Really only required for interrupt driven devices |
if (chan->out_cbuf.len != 0) { |
cyg_drv_interrupt_create(sdtr_chan->tx_int_num, |
99, // Priority - unused |
(cyg_addrword_t)chan, // Data item passed to interrupt handler |
sleb_sdtr_tx_ISR, |
sleb_sdtr_tx_DSR, |
&sdtr_chan->tx_serial_interrupt_handle, |
&sdtr_chan->tx_serial_interrupt); |
cyg_drv_interrupt_attach(sdtr_chan->tx_serial_interrupt_handle); |
cyg_drv_interrupt_mask(sdtr_chan->tx_int_num); |
cyg_drv_interrupt_create(sdtr_chan->rx_int_num, |
99, // Priority - unused |
(cyg_addrword_t)chan, // Data item passed to interrupt handler |
sleb_sdtr_rx_ISR, |
sleb_sdtr_rx_DSR, |
&sdtr_chan->rx_serial_interrupt_handle, |
&sdtr_chan->rx_serial_interrupt); |
cyg_drv_interrupt_attach(sdtr_chan->rx_serial_interrupt_handle); |
cyg_drv_interrupt_unmask(sdtr_chan->rx_int_num); |
} |
sleb_sdtr_config_port(chan, &chan->config, true); |
return true; |
} |
|
// This routine is called when the device is "looked" up (i.e. attached) |
static Cyg_ErrNo |
sleb_sdtr_lookup(struct cyg_devtab_entry **tab, |
struct cyg_devtab_entry *sub_tab, |
const char *name) |
{ |
serial_channel *chan = (serial_channel *)(*tab)->priv; |
(chan->callbacks->serial_init)(chan); // Really only required for interrupt driven devices |
return ENOERR; |
} |
|
// Send a character to the device output buffer. |
// Return 'true' if character is sent to device |
static bool |
sleb_sdtr_putc(serial_channel *chan, unsigned char c) |
{ |
sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv; |
CYG_ADDRWORD port = sdtr_chan->base; |
cyg_uint8 status; |
HAL_SPARC_86940_READ(SDTR_STATUS(port), status); |
if (status & SDTR_STAT_TxRDY) { |
// Transmit buffer is empty |
HAL_SPARC_86940_WRITE(SDTR_TXDATA(port), c); |
return true; |
} else { |
// No space |
return false; |
} |
} |
|
// Fetch a character from the device input buffer, waiting if necessary |
static unsigned char |
sleb_sdtr_getc(serial_channel *chan) |
{ |
unsigned char c; |
sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv; |
CYG_ADDRWORD port = sdtr_chan->base; |
cyg_uint8 status; |
HAL_SPARC_86940_READ(SDTR_STATUS(port), status); |
while ((status & SDTR_STAT_RxRDY) == 0) |
HAL_SPARC_86940_READ(SDTR_STATUS(port), status); // Wait for char |
HAL_SPARC_86940_READ(SDTR_RXDATA(port), c); |
return c; |
} |
|
// Set up the device characteristics; baud rate, etc. |
static Cyg_ErrNo |
sleb_sdtr_set_config(serial_channel *chan, cyg_uint32 key, |
const void *xbuf, cyg_uint32 *len) |
{ |
switch (key) { |
case CYG_IO_SET_CONFIG_SERIAL_INFO: |
{ |
cyg_serial_info_t *config = (cyg_serial_info_t *)xbuf; |
if ( *len < sizeof(cyg_serial_info_t) ) { |
return -EINVAL; |
} |
*len = sizeof(cyg_serial_info_t); |
if ( true != sleb_sdtr_config_port(chan, config, false) ) |
return -EINVAL; |
} |
break; |
default: |
return -EINVAL; |
} |
return ENOERR; |
} |
|
// Enable the transmitter on the device |
static void |
sleb_sdtr_start_xmit(serial_channel *chan) |
{ |
sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv; |
sdtr_chan->xmit_enabled = true; |
cyg_drv_interrupt_unmask(sdtr_chan->tx_int_num); |
} |
|
// Disable the transmitter on the device |
static void |
sleb_sdtr_stop_xmit(serial_channel *chan) |
{ |
sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv; |
cyg_drv_interrupt_mask(sdtr_chan->tx_int_num); |
sdtr_chan->xmit_enabled = false; |
} |
|
// Serial I/O - low level interrupt handler (ISR) |
static cyg_uint32 |
sleb_sdtr_tx_ISR(cyg_vector_t vector, cyg_addrword_t data) |
{ |
serial_channel *chan = (serial_channel *)data; |
sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv; |
cyg_drv_interrupt_mask(sdtr_chan->tx_int_num); |
cyg_drv_interrupt_acknowledge(sdtr_chan->tx_int_num); |
return CYG_ISR_CALL_DSR; // Cause DSR to be run |
} |
|
// Serial I/O - high level interrupt handler (DSR) |
static void |
sleb_sdtr_tx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data) |
{ |
serial_channel *chan = (serial_channel *)data; |
sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv; |
(chan->callbacks->xmt_char)(chan); |
if (sdtr_chan->xmit_enabled) |
cyg_drv_interrupt_unmask(sdtr_chan->tx_int_num); |
} |
|
// Serial I/O - low level interrupt handler (ISR) |
static cyg_uint32 |
sleb_sdtr_rx_ISR(cyg_vector_t vector, cyg_addrword_t data) |
{ |
serial_channel *chan = (serial_channel *)data; |
sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv; |
cyg_drv_interrupt_mask(sdtr_chan->rx_int_num); |
return CYG_ISR_CALL_DSR; // Cause DSR to be run |
} |
|
// Serial I/O - high level interrupt handler (DSR) |
static void |
sleb_sdtr_rx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data) |
{ |
serial_channel *chan = (serial_channel *)data; |
sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv; |
CYG_ADDRWORD port = sdtr_chan->base; |
cyg_uint8 status, c; |
HAL_SPARC_86940_READ(SDTR_STATUS(port), status); |
if ((status & SDTR_STAT_RxRDY) != 0) { |
HAL_SPARC_86940_READ(SDTR_RXDATA(port), c); |
(chan->callbacks->rcv_char)(chan, c); |
} |
cyg_drv_interrupt_acknowledge(sdtr_chan->rx_int_num); |
cyg_drv_interrupt_unmask(sdtr_chan->rx_int_num); |
} |
|
#endif // CYGPKG_IO_SERIAL_SPARCLITE_SLEB |
/sleb_sdtr.h
0,0 → 1,167
#ifndef CYGONCE_SLEB_SDTR_H |
#define CYGONCE_SLEB_SDTR_H |
//========================================================================== |
// |
// io/serial/sparclite/sleb_sdtr.c |
// |
// Serial I/O interface module for SPARClite Eval Board (SLEB) |
// |
//========================================================================== |
//####ECOSGPLCOPYRIGHTBEGIN#### |
// ------------------------------------------- |
// This file is part of eCos, the Embedded Configurable Operating System. |
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. |
// |
// eCos is free software; you can redistribute it and/or modify it under |
// the terms of the GNU General Public License as published by the Free |
// Software Foundation; either version 2 or (at your option) any later version. |
// |
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY |
// WARRANTY; without even the implied warranty of MERCHANTABILITY or |
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
// for more details. |
// |
// You should have received a copy of the GNU General Public License along |
// with eCos; if not, write to the Free Software Foundation, Inc., |
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
// |
// As a special exception, if other files instantiate templates or use macros |
// or inline functions from this file, or you compile this file and link it |
// with other works to produce a work based on this file, this file does not |
// by itself cause the resulting work to be covered by the GNU General Public |
// License. However the source code for this file must still be made available |
// in accordance with section (3) of the GNU General Public License. |
// |
// This exception does not invalidate any other reasons why a work based on |
// this file might be covered by the GNU General Public License. |
// |
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. |
// at http://sources.redhat.com/ecos/ecos-license/ |
// ------------------------------------------- |
//####ECOSGPLCOPYRIGHTEND#### |
//========================================================================== |
//#####DESCRIPTIONBEGIN#### |
// |
// Author(s): gthomas |
// Contributors: gthomas |
// Date: 1999-02-04 |
// Purpose: SLEB serial I/O module |
// Description: |
// |
//####DESCRIPTIONEND#### |
// |
//========================================================================== |
|
#include <cyg/hal/hal_io.h> // For I/O macros |
|
#define reg(n) ((n)*4) |
|
// SDTR Registers |
#define SDTR_TXDATA(base) base+reg(0) |
#define SDTR_RXDATA(base) base+reg(0) |
#define SDTR_STATUS(base) base+reg(1) |
#define SDTR_CONTROL(base) base+reg(1) |
|
// Mode register |
#define SDTR_MODE_MODE_MASK 0x03 // Mode selection bits (mask) |
#define SDTR_MODE_MODE_SYNC 0x00 // Synchronous mode |
#define SDTR_MODE_MODE_ASYNC1 0x01 // Async - clock/1 |
#define SDTR_MODE_MODE_ASYNC16 0x02 // Async - clock/16 |
#define SDTR_MODE_MODE_ASYNC64 0x03 // Async - clock/64 |
#define SDTR_MODE_DTB_MASK 0x0C // Number of data bits (mask) |
#define SDTR_MODE_DTB_5 0x00 // 5 bits / char |
#define SDTR_MODE_DTB_6 0x04 // 6 bits / char |
#define SDTR_MODE_DTB_7 0x08 // 7 bits / char |
#define SDTR_MODE_DTB_8 0x0C // 8 bits / char |
#define SDTR_MODE_PARITY_MASK 0x30 // Parity modes (mask) |
#define SDTR_MODE_PARITY_ENABLE 0x10 // Enable parity |
#define SDTR_MODE_PARITY_NONE 0x00 // No parity (parity disabled) |
#define SDTR_MODE_PARITY_ODD 0x00 // Odd parity |
#define SDTR_MODE_PARITY_EVEN 0x20 // Even parity |
#define SDTR_MODE_STOP_BITS_MASK 0xC0 // Number of stop bits (mask) |
#define SDTR_MODE_STOP_BITS_1 0x40 // 1 stop bit |
#define SDTR_MODE_STOP_BITS_1_5 0x80 // 1.5 stop bits |
#define SDTR_MODE_STOP_BITS_2 0xC0 // 2 stop bits |
|
// Command register |
#define SDTR_CMD_TxEN 0x01 // Enable transmitter |
#define SDTR_CMD_DTR 0x02 // Assert DTR |
#define SDTR_CMD_RxEN 0x04 // Enable receiver |
#define SDTR_CMD_BREAK 0x08 // Send break |
#define SDTR_CMD_EFR 0x10 // Error flag reset |
#define SDTR_CMD_RTS 0x20 // Assert RTS |
#define SDTR_CMD_RST 0x40 // Internal RESET |
#define SDTR_CMD_EHM 0x80 // Enable Hunt mode |
|
// Status register |
#define SDTR_STAT_TxRDY 0x01 // Transmitter ready |
#define SDTR_STAT_RxRDY 0x02 // Receiver ready |
#define SDTR_STAT_TxEMP 0x04 // Transmitter empty |
#define SDTR_STAT_PERR 0x08 // Parity error |
#define SDTR_STAT_OERR 0x10 // Overrun error |
#define SDTR_STAT_FERR 0x20 // Framing error |
#define SDTR_STAT_SYBRK 0x40 // Break |
#define SDTR_STAT_DSR 0x80 // State of DSR signal |
|
// Offsets to standard SDTR elements |
#define SLEB_SDTR0_BASE (8*4) |
#define SLEB_SDTR0_TX_INT 9 |
#define SLEB_SDTR0_RX_INT 10 |
#define SLEB_SDTR1_BASE (12*4) |
#define SLEB_SDTR1_TX_INT 6 |
#define SLEB_SDTR1_RX_INT 7 |
#define SLEB_TIMER3_CONTROL reg(29) |
#define SLEB_TIMER3_RELOAD reg(30) |
|
// On-board switch, used to determine baud rate |
#define SLEB_CLOCK_SWITCH (volatile unsigned char *)0x01000003 |
|
static unsigned char select_word_length[] = { |
SDTR_MODE_DTB_5, // 5 bits / word (char) |
SDTR_MODE_DTB_6, |
SDTR_MODE_DTB_7, |
SDTR_MODE_DTB_8 |
}; |
|
static unsigned char select_stop_bits[] = { |
0, |
SDTR_MODE_STOP_BITS_1, // 1 stop bit |
SDTR_MODE_STOP_BITS_1_5, // 1.5 stop bit |
SDTR_MODE_STOP_BITS_2 // 2 stop bits |
}; |
|
static unsigned char select_parity[] = { |
SDTR_MODE_PARITY_NONE, // No parity |
SDTR_MODE_PARITY_ENABLE|SDTR_MODE_PARITY_EVEN, // Even parity |
SDTR_MODE_PARITY_ENABLE|SDTR_MODE_PARITY_ODD, // ODD parity |
0xFF, // Mark parity |
0xFF, // Space parity |
}; |
|
static cyg_int32 select_baud[] = { |
0, // Unused |
50, // 50 |
75, // 75 |
110, // 110 |
0, // 134.5 |
150, // 150 |
200, // 200 |
300, // 300 |
600, // 600 |
1200, // 1200 |
1800, // 1800 |
2400, // 2400 |
3600, // 3600 |
4800, // 4800 |
7200, // 7200 |
9600, // 9600 |
14400, // 14400 |
19200, // 19200 |
38400, // 38400 |
57600, // 57600 |
115200, // 115200 |
230400, // 230400 |
}; |
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#endif // CYGONCE_SLEB_SDTR_H |
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