//==========================================================================////      io/serial/arm/e7t_serial.c////      ARM AEB-2 Serial I/O Interface Module (interrupt driven)////==========================================================================//####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):    Lars.Lindqvist@combitechsystems.com// Contributors: jlarmour// Date:         2001-10-19// Purpose:      ARM AEB-2 Serial I/O Interface Module (interrupt driven)// Description:////####DESCRIPTIONEND####//// ====================================================================#include <pkgconf/system.h>#include <pkgconf/io_serial.h>#include <pkgconf/io.h>#include <cyg/io/io.h>#include <cyg/hal/hal_intr.h>#include <cyg/io/devtab.h>#include <cyg/io/serial.h>#include <cyg/io/serialio.h>#include <cyg/infra/diag.h>#ifdef CYGPKG_IO_SERIAL_ARM_E7T#include "e7t_serial.h"typedef struct e7t_serial_info {    CYG_ADDRWORD   base;    CYG_WORD       tx_int_num;    CYG_WORD       rx_int_num;    cyg_interrupt  serial_tx_interrupt;    cyg_interrupt  serial_rx_interrupt;    cyg_handle_t   serial_tx_interrupt_handle;    cyg_handle_t   serial_rx_interrupt_handle;    bool           tx_enabled;} e7t_serial_info;static bool e7t_serial_init(struct cyg_devtab_entry *tab);static bool e7t_serial_putc(serial_channel *chan, unsigned char c);static Cyg_ErrNo e7t_serial_lookup(struct cyg_devtab_entry **tab,                                    struct cyg_devtab_entry *sub_tab,                                   const char *name);static unsigned char e7t_serial_getc(serial_channel *chan);static Cyg_ErrNo e7t_serial_set_config(serial_channel *chan,                                        cyg_uint32 key,                                       const void *xbuf, cyg_uint32 *len);static void e7t_serial_start_xmit(serial_channel *chan);static void e7t_serial_stop_xmit(serial_channel *chan);static cyg_uint32 e7t_serial_tx_ISR(cyg_vector_t vector, cyg_addrword_t data);static void       e7t_serial_tx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data);static cyg_uint32 e7t_serial_rx_ISR(cyg_vector_t vector, cyg_addrword_t data);static void       e7t_serial_rx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data);static SERIAL_FUNS(e7t_serial_funs,                    e7t_serial_putc,                    e7t_serial_getc,                   e7t_serial_set_config,                   e7t_serial_start_xmit,                   e7t_serial_stop_xmit    );#ifdef CYGPKG_IO_SERIAL_ARM_E7T_SERIAL0static e7t_serial_info e7t_serial_info0 = {0x07FFd000,                                            CYGNUM_HAL_INTERRUPT_UART0_TX,                                           CYGNUM_HAL_INTERRUPT_UART0_RX};#if CYGNUM_IO_SERIAL_ARM_E7T_SERIAL0_BUFSIZE > 0static unsigned char e7t_serial_out_buf0[CYGNUM_IO_SERIAL_ARM_E7T_SERIAL0_BUFSIZE];static unsigned char e7t_serial_in_buf0[CYGNUM_IO_SERIAL_ARM_E7T_SERIAL0_BUFSIZE];static SERIAL_CHANNEL_USING_INTERRUPTS(e7t_serial_channel0,                                       e7t_serial_funs,                                        e7t_serial_info0,                                       CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_E7T_SERIAL0_BAUD),                                       CYG_SERIAL_STOP_DEFAULT,                                       CYG_SERIAL_PARITY_DEFAULT,                                       CYG_SERIAL_WORD_LENGTH_DEFAULT,                                       CYG_SERIAL_FLAGS_DEFAULT,                                       &e7t_serial_out_buf0[0], sizeof(e7t_serial_out_buf0),                                       &e7t_serial_in_buf0[0], sizeof(e7t_serial_in_buf0)    );#else static SERIAL_CHANNEL(e7t_serial_channel0,                      e7t_serial_funs,                       e7t_serial_info0,                      CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_E7T_SERIAL0_BAUD),                      CYG_SERIAL_STOP_DEFAULT,                      CYG_SERIAL_PARITY_DEFAULT,                      CYG_SERIAL_WORD_LENGTH_DEFAULT,                      CYG_SERIAL_FLAGS_DEFAULT    );#endifDEVTAB_ENTRY(e7t_serial_io0,              CYGDAT_IO_SERIAL_ARM_E7T_SERIAL0_NAME,             0,                     // Does not depend on a lower level interface             &cyg_io_serial_devio,              e7t_serial_init,              e7t_serial_lookup,     // Serial driver may need initializing             &e7t_serial_channel0    );#endif //  CYGPKG_IO_SERIAL_ARM_E7T_SERIAL0#ifdef CYGPKG_IO_SERIAL_ARM_E7T_SERIAL1static e7t_serial_info e7t_serial_info1 = {0x07FFe000,                                           CYGNUM_HAL_INTERRUPT_UART1_TX,                                           CYGNUM_HAL_INTERRUPT_UART1_RX};#if CYGNUM_IO_SERIAL_ARM_E7T_SERIAL1_BUFSIZE > 0static unsigned char e7t_serial_out_buf1[CYGNUM_IO_SERIAL_ARM_E7T_SERIAL1_BUFSIZE];static unsigned char e7t_serial_in_buf1[CYGNUM_IO_SERIAL_ARM_E7T_SERIAL1_BUFSIZE];static SERIAL_CHANNEL_USING_INTERRUPTS(e7t_serial_channel1,                                       e7t_serial_funs,                                        e7t_serial_info1,                                       CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_E7T_SERIAL1_BAUD),                                       CYG_SERIAL_STOP_DEFAULT,                                       CYG_SERIAL_PARITY_DEFAULT,                                       CYG_SERIAL_WORD_LENGTH_DEFAULT,                                       CYG_SERIAL_FLAGS_DEFAULT,                                       &e7t_serial_out_buf1[0], sizeof(e7t_serial_out_buf1),                                       &e7t_serial_in_buf1[0], sizeof(e7t_serial_in_buf1)    );#elsestatic SERIAL_CHANNEL(e7t_serial_channel1,                      e7t_serial_funs,                       e7t_serial_info1,                      CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_E7T_SERIAL1_BAUD),                      CYG_SERIAL_STOP_DEFAULT,                      CYG_SERIAL_PARITY_DEFAULT,                      CYG_SERIAL_WORD_LENGTH_DEFAULT,                      CYG_SERIAL_FLAGS_DEFAULT    );#endifDEVTAB_ENTRY(e7t_serial_io1,              CYGDAT_IO_SERIAL_ARM_E7T_SERIAL1_NAME,             0,                     // Does not depend on a lower level interface             &cyg_io_serial_devio,              e7t_serial_init,              e7t_serial_lookup,     // Serial driver may need initializing             &e7t_serial_channel1    );#endif //  CYGPKG_IO_SERIAL_ARM_E7T_SERIAL1// Internal function to actually configure the hardware to desired baud rate, etc.static boole7t_serial_config_port(serial_channel *chan, cyg_serial_info_t *new_config, bool init){  e7t_serial_info *e7t_chan = (e7t_serial_info *)chan->dev_priv;