serial_pnx8xxx.h

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/*
 * Embedded Alley Solutions, [email protected].
 *
 * This program 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 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef _LINUX_SERIAL_PNX8XXX_H
#define _LINUX_SERIAL_PNX8XXX_H

#include <linux/serial_core.h>

#define PNX8XXX_NR_PORTS    2

struct pnx8xxx_port {
    struct uart_port    port;
    struct timer_list   timer;
    unsigned int        old_status;
};

/* register offsets */
#define PNX8XXX_LCR     0
#define PNX8XXX_MCR     0x004
#define PNX8XXX_BAUD        0x008
#define PNX8XXX_CFG     0x00c
#define PNX8XXX_FIFO        0x028
#define PNX8XXX_ISTAT       0xfe0
#define PNX8XXX_IEN     0xfe4
#define PNX8XXX_ICLR        0xfe8
#define PNX8XXX_ISET        0xfec
#define PNX8XXX_PD      0xff4
#define PNX8XXX_MID     0xffc

#define PNX8XXX_UART_LCR_TXBREAK    (1<<30)
#define PNX8XXX_UART_LCR_PAREVN     0x10000000
#define PNX8XXX_UART_LCR_PAREN      0x08000000
#define PNX8XXX_UART_LCR_2STOPB     0x04000000
#define PNX8XXX_UART_LCR_8BIT       0x01000000
#define PNX8XXX_UART_LCR_TX_RST     0x00040000
#define PNX8XXX_UART_LCR_RX_RST     0x00020000
#define PNX8XXX_UART_LCR_RX_NEXT    0x00010000

#define PNX8XXX_UART_MCR_SCR        0xFF000000
#define PNX8XXX_UART_MCR_DCD        0x00800000
#define PNX8XXX_UART_MCR_CTS        0x00100000
#define PNX8XXX_UART_MCR_LOOP       0x00000010
#define PNX8XXX_UART_MCR_RTS        0x00000002
#define PNX8XXX_UART_MCR_DTR        0x00000001

#define PNX8XXX_UART_INT_TX     0x00000080
#define PNX8XXX_UART_INT_EMPTY      0x00000040
#define PNX8XXX_UART_INT_RCVTO      0x00000020
#define PNX8XXX_UART_INT_RX     0x00000010
#define PNX8XXX_UART_INT_RXOVRN     0x00000008
#define PNX8XXX_UART_INT_FRERR      0x00000004
#define PNX8XXX_UART_INT_BREAK      0x00000002
#define PNX8XXX_UART_INT_PARITY     0x00000001
#define PNX8XXX_UART_INT_ALLRX      0x0000003F
#define PNX8XXX_UART_INT_ALLTX      0x000000C0

#define PNX8XXX_UART_FIFO_TXFIFO    0x001F0000
#define PNX8XXX_UART_FIFO_TXFIFO_STA    (0x1f<<16)
#define PNX8XXX_UART_FIFO_RXBRK     0x00008000
#define PNX8XXX_UART_FIFO_RXFE      0x00004000
#define PNX8XXX_UART_FIFO_RXPAR     0x00002000
#define PNX8XXX_UART_FIFO_RXFIFO    0x00001F00
#define PNX8XXX_UART_FIFO_RBRTHR    0x000000FF

#endif