2008-02-07 15:59:03 -07:00
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/*
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* spcp8x5 USB to serial adaptor driver
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*
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* Copyright (C) 2006 Linxb (xubin.lin@worldplus.com.cn)
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* Copyright (C) 2006 S1 Corp.
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*
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* Original driver for 2.6.10 pl2303 driver by
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* Greg Kroah-Hartman (greg@kroah.com)
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* Changes for 2.6.20 by Harald Klein <hari@vt100.at>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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*
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*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/tty.h>
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#include <linux/tty_driver.h>
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#include <linux/tty_flip.h>
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#include <linux/module.h>
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#include <linux/spinlock.h>
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#include <linux/usb.h>
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#include <linux/usb/serial.h>
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/* Version Information */
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#define DRIVER_VERSION "v0.04"
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#define DRIVER_DESC "SPCP8x5 USB to serial adaptor driver"
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static int debug;
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#define SPCP8x5_007_VID 0x04FC
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#define SPCP8x5_007_PID 0x0201
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#define SPCP8x5_008_VID 0x04fc
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#define SPCP8x5_008_PID 0x0235
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#define SPCP8x5_PHILIPS_VID 0x0471
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#define SPCP8x5_PHILIPS_PID 0x081e
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#define SPCP8x5_INTERMATIC_VID 0x04FC
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#define SPCP8x5_INTERMATIC_PID 0x0204
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#define SPCP8x5_835_VID 0x04fc
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#define SPCP8x5_835_PID 0x0231
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static struct usb_device_id id_table [] = {
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{ USB_DEVICE(SPCP8x5_PHILIPS_VID , SPCP8x5_PHILIPS_PID)},
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{ USB_DEVICE(SPCP8x5_INTERMATIC_VID, SPCP8x5_INTERMATIC_PID)},
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{ USB_DEVICE(SPCP8x5_835_VID, SPCP8x5_835_PID)},
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{ USB_DEVICE(SPCP8x5_008_VID, SPCP8x5_008_PID)},
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{ USB_DEVICE(SPCP8x5_007_VID, SPCP8x5_007_PID)},
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{ } /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(usb, id_table);
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struct spcp8x5_usb_ctrl_arg {
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u8 type;
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u8 cmd;
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u8 cmd_type;
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u16 value;
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u16 index;
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u16 length;
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};
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/* wait 30s before close */
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#define SPCP8x5_CLOSING_WAIT (30*HZ)
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#define SPCP8x5_BUF_SIZE 1024
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/* spcp8x5 spec register define */
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#define MCR_CONTROL_LINE_RTS 0x02
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#define MCR_CONTROL_LINE_DTR 0x01
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#define MCR_DTR 0x01
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#define MCR_RTS 0x02
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#define MSR_STATUS_LINE_DCD 0x80
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#define MSR_STATUS_LINE_RI 0x40
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#define MSR_STATUS_LINE_DSR 0x20
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#define MSR_STATUS_LINE_CTS 0x10
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/* verdor command here , we should define myself */
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#define SET_DEFAULT 0x40
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#define SET_DEFAULT_TYPE 0x20
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#define SET_UART_FORMAT 0x40
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#define SET_UART_FORMAT_TYPE 0x21
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#define SET_UART_FORMAT_SIZE_5 0x00
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#define SET_UART_FORMAT_SIZE_6 0x01
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#define SET_UART_FORMAT_SIZE_7 0x02
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#define SET_UART_FORMAT_SIZE_8 0x03
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#define SET_UART_FORMAT_STOP_1 0x00
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#define SET_UART_FORMAT_STOP_2 0x04
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#define SET_UART_FORMAT_PAR_NONE 0x00
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#define SET_UART_FORMAT_PAR_ODD 0x10
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#define SET_UART_FORMAT_PAR_EVEN 0x30
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#define SET_UART_FORMAT_PAR_MASK 0xD0
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#define SET_UART_FORMAT_PAR_SPACE 0x90
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#define GET_UART_STATUS_TYPE 0xc0
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#define GET_UART_STATUS 0x22
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#define GET_UART_STATUS_MSR 0x06
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#define SET_UART_STATUS 0x40
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#define SET_UART_STATUS_TYPE 0x23
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#define SET_UART_STATUS_MCR 0x0004
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#define SET_UART_STATUS_MCR_DTR 0x01
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#define SET_UART_STATUS_MCR_RTS 0x02
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#define SET_UART_STATUS_MCR_LOOP 0x10
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#define SET_WORKING_MODE 0x40
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#define SET_WORKING_MODE_TYPE 0x24
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#define SET_WORKING_MODE_U2C 0x00
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#define SET_WORKING_MODE_RS485 0x01
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#define SET_WORKING_MODE_PDMA 0x02
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#define SET_WORKING_MODE_SPP 0x03
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#define SET_FLOWCTL_CHAR 0x40
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#define SET_FLOWCTL_CHAR_TYPE 0x25
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#define GET_VERSION 0xc0
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#define GET_VERSION_TYPE 0x26
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#define SET_REGISTER 0x40
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#define SET_REGISTER_TYPE 0x27
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#define GET_REGISTER 0xc0
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#define GET_REGISTER_TYPE 0x28
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#define SET_RAM 0x40
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#define SET_RAM_TYPE 0x31
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#define GET_RAM 0xc0
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#define GET_RAM_TYPE 0x32
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/* how come ??? */
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#define UART_STATE 0x08
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#define UART_STATE_TRANSIENT_MASK 0x74
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#define UART_DCD 0x01
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#define UART_DSR 0x02
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#define UART_BREAK_ERROR 0x04
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#define UART_RING 0x08
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#define UART_FRAME_ERROR 0x10
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#define UART_PARITY_ERROR 0x20
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#define UART_OVERRUN_ERROR 0x40
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#define UART_CTS 0x80
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enum spcp8x5_type {
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SPCP825_007_TYPE,
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SPCP825_008_TYPE,
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SPCP825_PHILIP_TYPE,
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SPCP825_INTERMATIC_TYPE,
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SPCP835_TYPE,
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};
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/* 1st in 1st out buffer 4 driver */
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struct ringbuf {
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unsigned int buf_size;
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char *buf_buf;
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char *buf_get;
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char *buf_put;
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};
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/* alloc the ring buf and alloc the buffer itself */
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static inline struct ringbuf *alloc_ringbuf(unsigned int size)
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{
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struct ringbuf *pb;
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if (size == 0)
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return NULL;
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pb = kmalloc(sizeof(*pb), GFP_KERNEL);
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if (pb == NULL)
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return NULL;
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pb->buf_buf = kmalloc(size, GFP_KERNEL);
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if (pb->buf_buf == NULL) {
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kfree(pb);
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return NULL;
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}
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pb->buf_size = size;
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pb->buf_get = pb->buf_put = pb->buf_buf;
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return pb;
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}
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/* free the ring buf and the buffer itself */
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static inline void free_ringbuf(struct ringbuf *pb)
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{
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if (pb != NULL) {
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kfree(pb->buf_buf);
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kfree(pb);
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}
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}
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/* clear pipo , juest repoint the pointer here */
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static inline void clear_ringbuf(struct ringbuf *pb)
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{
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if (pb != NULL)
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pb->buf_get = pb->buf_put;
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}
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/* get the number of data in the pipo */
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static inline unsigned int ringbuf_avail_data(struct ringbuf *pb)
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{
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if (pb == NULL)
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return 0;
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2008-07-22 04:15:08 -06:00
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return (pb->buf_size + pb->buf_put - pb->buf_get) % pb->buf_size;
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2008-02-07 15:59:03 -07:00
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}
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/* get the number of space in the pipo */
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static inline unsigned int ringbuf_avail_space(struct ringbuf *pb)
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{
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if (pb == NULL)
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return 0;
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2008-07-22 04:15:08 -06:00
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return (pb->buf_size + pb->buf_get - pb->buf_put - 1) % pb->buf_size;
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2008-02-07 15:59:03 -07:00
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}
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/* put count data into pipo */
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static unsigned int put_ringbuf(struct ringbuf *pb, const char *buf,
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unsigned int count)
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{
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unsigned int len;
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if (pb == NULL)
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return 0;
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len = ringbuf_avail_space(pb);
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if (count > len)
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count = len;
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if (count == 0)
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return 0;
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len = pb->buf_buf + pb->buf_size - pb->buf_put;
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if (count > len) {
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memcpy(pb->buf_put, buf, len);
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memcpy(pb->buf_buf, buf+len, count - len);
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pb->buf_put = pb->buf_buf + count - len;
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} else {
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memcpy(pb->buf_put, buf, count);
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if (count < len)
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pb->buf_put += count;
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else /* count == len */
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pb->buf_put = pb->buf_buf;
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}
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return count;
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}
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/* get count data from pipo */
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static unsigned int get_ringbuf(struct ringbuf *pb, char *buf,
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unsigned int count)
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{
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unsigned int len;
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if (pb == NULL || buf == NULL)
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return 0;
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len = ringbuf_avail_data(pb);
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if (count > len)
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count = len;
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if (count == 0)
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return 0;
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len = pb->buf_buf + pb->buf_size - pb->buf_get;
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if (count > len) {
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memcpy(buf, pb->buf_get, len);
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memcpy(buf+len, pb->buf_buf, count - len);
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pb->buf_get = pb->buf_buf + count - len;
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} else {
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memcpy(buf, pb->buf_get, count);
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if (count < len)
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pb->buf_get += count;
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else /* count == len */
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pb->buf_get = pb->buf_buf;
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}
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return count;
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}
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static struct usb_driver spcp8x5_driver = {
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.name = "spcp8x5",
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.probe = usb_serial_probe,
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.disconnect = usb_serial_disconnect,
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.id_table = id_table,
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.no_dynamic_id = 1,
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};
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struct spcp8x5_private {
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spinlock_t lock;
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struct ringbuf *buf;
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int write_urb_in_use;
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enum spcp8x5_type type;
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wait_queue_head_t delta_msr_wait;
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u8 line_control;
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u8 line_status;
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u8 termios_initialized;
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};
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/* desc : when device plug in,this function would be called.
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* thanks to usb_serial subsystem,then do almost every things for us. And what
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* we should do just alloc the buffer */
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static int spcp8x5_startup(struct usb_serial *serial)
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{
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struct spcp8x5_private *priv;
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int i;
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enum spcp8x5_type type = SPCP825_007_TYPE;
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2008-04-28 00:00:16 -06:00
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u16 product = le16_to_cpu(serial->dev->descriptor.idProduct);
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2008-02-07 15:59:03 -07:00
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2008-04-28 00:00:16 -06:00
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if (product == 0x0201)
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2008-02-07 15:59:03 -07:00
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type = SPCP825_007_TYPE;
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2008-04-28 00:00:16 -06:00
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else if (product == 0x0231)
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2008-02-07 15:59:03 -07:00
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type = SPCP835_TYPE;
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2008-04-28 00:00:16 -06:00
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else if (product == 0x0235)
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2008-02-07 15:59:03 -07:00
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type = SPCP825_008_TYPE;
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2008-04-28 00:00:16 -06:00
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else if (product == 0x0204)
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2008-02-07 15:59:03 -07:00
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type = SPCP825_INTERMATIC_TYPE;
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2008-04-28 00:00:16 -06:00
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else if (product == 0x0471 &&
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serial->dev->descriptor.idVendor == cpu_to_le16(0x081e))
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2008-02-07 15:59:03 -07:00
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type = SPCP825_PHILIP_TYPE;
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dev_dbg(&serial->dev->dev, "device type = %d\n", (int)type);
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for (i = 0; i < serial->num_ports; ++i) {
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priv = kzalloc(sizeof(struct spcp8x5_private), GFP_KERNEL);
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if (!priv)
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goto cleanup;
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spin_lock_init(&priv->lock);
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priv->buf = alloc_ringbuf(SPCP8x5_BUF_SIZE);
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if (priv->buf == NULL)
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goto cleanup2;
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init_waitqueue_head(&priv->delta_msr_wait);
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priv->type = type;
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usb_set_serial_port_data(serial->port[i] , priv);
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}
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return 0;
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cleanup2:
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kfree(priv);
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cleanup:
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for (--i; i >= 0; --i) {
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priv = usb_get_serial_port_data(serial->port[i]);
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free_ringbuf(priv->buf);
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kfree(priv);
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usb_set_serial_port_data(serial->port[i] , NULL);
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}
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return -ENOMEM;
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}
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/* call when the device plug out. free all the memory alloced by probe */
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|
|
static void spcp8x5_shutdown(struct usb_serial *serial)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
struct spcp8x5_private *priv;
|
|
|
|
|
|
|
|
for (i = 0; i < serial->num_ports; i++) {
|
|
|
|
priv = usb_get_serial_port_data(serial->port[i]);
|
|
|
|
if (priv) {
|
|
|
|
free_ringbuf(priv->buf);
|
|
|
|
kfree(priv);
|
|
|
|
usb_set_serial_port_data(serial->port[i] , NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* set the modem control line of the device.
|
|
|
|
* NOTE spcp825-007 not supported this */
|
|
|
|
static int spcp8x5_set_ctrlLine(struct usb_device *dev, u8 value,
|
|
|
|
enum spcp8x5_type type)
|
|
|
|
{
|
|
|
|
int retval;
|
|
|
|
u8 mcr = 0 ;
|
|
|
|
|
|
|
|
if (type == SPCP825_007_TYPE)
|
|
|
|
return -EPERM;
|
|
|
|
|
|
|
|
mcr = (unsigned short)value;
|
|
|
|
retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
|
|
|
SET_UART_STATUS_TYPE, SET_UART_STATUS,
|
|
|
|
mcr, 0x04, NULL, 0, 100);
|
|
|
|
if (retval != 0)
|
|
|
|
dev_dbg(&dev->dev, "usb_control_msg return %#x\n", retval);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* get the modem status register of the device
|
|
|
|
* NOTE spcp825-007 not supported this */
|
|
|
|
static int spcp8x5_get_msr(struct usb_device *dev, u8 *status,
|
|
|
|
enum spcp8x5_type type)
|
|
|
|
{
|
|
|
|
u8 *status_buffer;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
/* I return Permited not support here but seem inval device
|
|
|
|
* is more fix */
|
|
|
|
if (type == SPCP825_007_TYPE)
|
|
|
|
return -EPERM;
|
|
|
|
if (status == NULL)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
status_buffer = kmalloc(1, GFP_KERNEL);
|
|
|
|
if (!status_buffer)
|
|
|
|
return -ENOMEM;
|
|
|
|
status_buffer[0] = status[0];
|
|
|
|
|
|
|
|
ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
|
|
|
|
GET_UART_STATUS, GET_UART_STATUS_TYPE,
|
|
|
|
0, GET_UART_STATUS_MSR, status_buffer, 1, 100);
|
|
|
|
if (ret < 0)
|
|
|
|
dev_dbg(&dev->dev, "Get MSR = 0x%p failed (error = %d)",
|
|
|
|
status_buffer, ret);
|
|
|
|
|
|
|
|
dev_dbg(&dev->dev, "0xc0:0x22:0:6 %d - 0x%p ", ret, status_buffer);
|
|
|
|
status[0] = status_buffer[0];
|
|
|
|
kfree(status_buffer);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* select the work mode.
|
|
|
|
* NOTE this function not supported by spcp825-007 */
|
|
|
|
static void spcp8x5_set_workMode(struct usb_device *dev, u16 value,
|
|
|
|
u16 index, enum spcp8x5_type type)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
/* I return Permited not support here but seem inval device
|
|
|
|
* is more fix */
|
|
|
|
if (type == SPCP825_007_TYPE)
|
|
|
|
return;
|
|
|
|
|
|
|
|
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
|
|
|
SET_WORKING_MODE_TYPE, SET_WORKING_MODE,
|
|
|
|
value, index, NULL, 0, 100);
|
|
|
|
dev_dbg(&dev->dev, "value = %#x , index = %#x\n", value, index);
|
|
|
|
if (ret < 0)
|
|
|
|
dev_dbg(&dev->dev,
|
|
|
|
"RTSCTS usb_control_msg(enable flowctrl) = %d\n", ret);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* close the serial port. We should wait for data sending to device 1st and
|
|
|
|
* then kill all urb. */
|
2008-07-22 04:09:07 -06:00
|
|
|
static void spcp8x5_close(struct tty_struct *tty,
|
|
|
|
struct usb_serial_port *port, struct file *filp)
|
2008-02-07 15:59:03 -07:00
|
|
|
{
|
|
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
|
|
unsigned long flags;
|
|
|
|
unsigned int c_cflag;
|
|
|
|
int bps;
|
|
|
|
long timeout;
|
|
|
|
wait_queue_t wait;
|
|
|
|
int result;
|
|
|
|
|
|
|
|
dbg("%s - port %d", __func__, port->number);
|
|
|
|
|
|
|
|
/* wait for data to drain from the buffer */
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
timeout = SPCP8x5_CLOSING_WAIT;
|
|
|
|
init_waitqueue_entry(&wait, current);
|
2008-07-22 04:09:07 -06:00
|
|
|
add_wait_queue(&tty->write_wait, &wait);
|
2008-02-07 15:59:03 -07:00
|
|
|
for (;;) {
|
|
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
|
|
if (ringbuf_avail_data(priv->buf) == 0 ||
|
|
|
|
timeout == 0 || signal_pending(current))
|
|
|
|
break;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
timeout = schedule_timeout(timeout);
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
}
|
|
|
|
set_current_state(TASK_RUNNING);
|
2008-07-22 04:09:07 -06:00
|
|
|
remove_wait_queue(&tty->write_wait, &wait);
|
2008-02-07 15:59:03 -07:00
|
|
|
|
|
|
|
/* clear out any remaining data in the buffer */
|
|
|
|
clear_ringbuf(priv->buf);
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
|
|
|
|
/* wait for characters to drain from the device (this is long enough
|
|
|
|
* for the entire all byte spcp8x5 hardware buffer to drain with no
|
|
|
|
* flow control for data rates of 1200 bps or more, for lower rates we
|
|
|
|
* should really know how much data is in the buffer to compute a delay
|
|
|
|
* that is not unnecessarily long) */
|
2008-07-22 04:09:07 -06:00
|
|
|
bps = tty_get_baud_rate(tty);
|
2008-02-07 15:59:03 -07:00
|
|
|
if (bps > 1200)
|
|
|
|
timeout = max((HZ*2560) / bps, HZ/10);
|
|
|
|
else
|
|
|
|
timeout = 2*HZ;
|
|
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
|
|
schedule_timeout(timeout);
|
|
|
|
|
|
|
|
/* clear control lines */
|
2008-07-22 04:09:07 -06:00
|
|
|
if (tty) {
|
|
|
|
c_cflag = tty->termios->c_cflag;
|
2008-02-07 15:59:03 -07:00
|
|
|
if (c_cflag & HUPCL) {
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
priv->line_control = 0;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
spcp8x5_set_ctrlLine(port->serial->dev, 0 , priv->type);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* kill urb */
|
|
|
|
if (port->write_urb != NULL) {
|
|
|
|
result = usb_unlink_urb(port->write_urb);
|
|
|
|
if (result)
|
|
|
|
dev_dbg(&port->dev,
|
|
|
|
"usb_unlink_urb(write_urb) = %d\n", result);
|
|
|
|
}
|
|
|
|
result = usb_unlink_urb(port->read_urb);
|
|
|
|
if (result)
|
|
|
|
dev_dbg(&port->dev, "usb_unlink_urb(read_urb) = %d\n", result);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* set the serial param for transfer. we should check if we really need to
|
2008-07-22 04:09:07 -06:00
|
|
|
* transfer. if we set flow control we should do this too. */
|
|
|
|
static void spcp8x5_set_termios(struct tty_struct *tty,
|
|
|
|
struct usb_serial_port *port, struct ktermios *old_termios)
|
2008-02-07 15:59:03 -07:00
|
|
|
{
|
|
|
|
struct usb_serial *serial = port->serial;
|
|
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
|
|
unsigned long flags;
|
2008-07-22 04:09:07 -06:00
|
|
|
unsigned int cflag = tty->termios->c_cflag;
|
2008-02-07 15:59:03 -07:00
|
|
|
unsigned int old_cflag = old_termios->c_cflag;
|
|
|
|
unsigned short uartdata;
|
|
|
|
unsigned char buf[2] = {0, 0};
|
|
|
|
int baud;
|
|
|
|
int i;
|
|
|
|
u8 control;
|
|
|
|
|
|
|
|
/* for the 1st time call this function */
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
if (!priv->termios_initialized) {
|
2008-07-22 04:09:07 -06:00
|
|
|
*(tty->termios) = tty_std_termios;
|
|
|
|
tty->termios->c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL;
|
|
|
|
tty->termios->c_ispeed = 115200;
|
|
|
|
tty->termios->c_ospeed = 115200;
|
2008-02-07 15:59:03 -07:00
|
|
|
priv->termios_initialized = 1;
|
|
|
|
}
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
|
|
|
|
/* check that they really want us to change something */
|
2008-07-22 04:09:07 -06:00
|
|
|
if (!tty_termios_hw_change(tty->termios, old_termios))
|
2008-02-07 15:59:03 -07:00
|
|
|
return;
|
|
|
|
|
|
|
|
/* set DTR/RTS active */
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
control = priv->line_control;
|
|
|
|
if ((old_cflag & CBAUD) == B0) {
|
|
|
|
priv->line_control |= MCR_DTR;
|
|
|
|
if (!(old_cflag & CRTSCTS))
|
|
|
|
priv->line_control |= MCR_RTS;
|
|
|
|
}
|
|
|
|
if (control != priv->line_control) {
|
|
|
|
control = priv->line_control;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
spcp8x5_set_ctrlLine(serial->dev, control , priv->type);
|
|
|
|
} else {
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Set Baud Rate */
|
2008-07-22 04:09:07 -06:00
|
|
|
baud = tty_get_baud_rate(tty);;
|
2008-02-07 15:59:03 -07:00
|
|
|
switch (baud) {
|
|
|
|
case 300: buf[0] = 0x00; break;
|
|
|
|
case 600: buf[0] = 0x01; break;
|
|
|
|
case 1200: buf[0] = 0x02; break;
|
|
|
|
case 2400: buf[0] = 0x03; break;
|
|
|
|
case 4800: buf[0] = 0x04; break;
|
|
|
|
case 9600: buf[0] = 0x05; break;
|
|
|
|
case 19200: buf[0] = 0x07; break;
|
|
|
|
case 38400: buf[0] = 0x09; break;
|
|
|
|
case 57600: buf[0] = 0x0a; break;
|
|
|
|
case 115200: buf[0] = 0x0b; break;
|
|
|
|
case 230400: buf[0] = 0x0c; break;
|
|
|
|
case 460800: buf[0] = 0x0d; break;
|
|
|
|
case 921600: buf[0] = 0x0e; break;
|
|
|
|
/* case 1200000: buf[0] = 0x0f; break; */
|
|
|
|
/* case 2400000: buf[0] = 0x10; break; */
|
|
|
|
case 3000000: buf[0] = 0x11; break;
|
|
|
|
/* case 6000000: buf[0] = 0x12; break; */
|
|
|
|
case 0:
|
|
|
|
case 1000000:
|
|
|
|
buf[0] = 0x0b; break;
|
|
|
|
default:
|
|
|
|
err("spcp825 driver does not support the baudrate "
|
|
|
|
"requested, using default of 9600.");
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Set Data Length : 00:5bit, 01:6bit, 10:7bit, 11:8bit */
|
|
|
|
if (cflag & CSIZE) {
|
|
|
|
switch (cflag & CSIZE) {
|
|
|
|
case CS5:
|
|
|
|
buf[1] |= SET_UART_FORMAT_SIZE_5;
|
|
|
|
break;
|
|
|
|
case CS6:
|
|
|
|
buf[1] |= SET_UART_FORMAT_SIZE_6;
|
|
|
|
break;
|
|
|
|
case CS7:
|
|
|
|
buf[1] |= SET_UART_FORMAT_SIZE_7;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
case CS8:
|
|
|
|
buf[1] |= SET_UART_FORMAT_SIZE_8;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Set Stop bit2 : 0:1bit 1:2bit */
|
|
|
|
buf[1] |= (cflag & CSTOPB) ? SET_UART_FORMAT_STOP_2 :
|
|
|
|
SET_UART_FORMAT_STOP_1;
|
|
|
|
|
|
|
|
/* Set Parity bit3-4 01:Odd 11:Even */
|
|
|
|
if (cflag & PARENB) {
|
|
|
|
buf[1] |= (cflag & PARODD) ?
|
|
|
|
SET_UART_FORMAT_PAR_ODD : SET_UART_FORMAT_PAR_EVEN ;
|
|
|
|
} else
|
|
|
|
buf[1] |= SET_UART_FORMAT_PAR_NONE;
|
|
|
|
|
|
|
|
uartdata = buf[0] | buf[1]<<8;
|
|
|
|
|
|
|
|
i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
|
|
|
|
SET_UART_FORMAT_TYPE, SET_UART_FORMAT,
|
|
|
|
uartdata, 0, NULL, 0, 100);
|
|
|
|
if (i < 0)
|
|
|
|
err("Set UART format %#x failed (error = %d)", uartdata, i);
|
|
|
|
dbg("0x21:0x40:0:0 %d\n", i);
|
|
|
|
|
|
|
|
if (cflag & CRTSCTS) {
|
|
|
|
/* enable hardware flow control */
|
|
|
|
spcp8x5_set_workMode(serial->dev, 0x000a,
|
|
|
|
SET_WORKING_MODE_U2C, priv->type);
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* open the serial port. do some usb system call. set termios and get the line
|
|
|
|
* status of the device. then submit the read urb */
|
2008-07-22 04:09:07 -06:00
|
|
|
static int spcp8x5_open(struct tty_struct *tty,
|
|
|
|
struct usb_serial_port *port, struct file *filp)
|
2008-02-07 15:59:03 -07:00
|
|
|
{
|
|
|
|
struct ktermios tmp_termios;
|
|
|
|
struct usb_serial *serial = port->serial;
|
|
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
|
|
int ret;
|
|
|
|
unsigned long flags;
|
|
|
|
u8 status = 0x30;
|
|
|
|
/* status 0x30 means DSR and CTS = 1 other CDC RI and delta = 0 */
|
|
|
|
|
|
|
|
dbg("%s - port %d", __func__, port->number);
|
|
|
|
|
|
|
|
usb_clear_halt(serial->dev, port->write_urb->pipe);
|
|
|
|
usb_clear_halt(serial->dev, port->read_urb->pipe);
|
|
|
|
|
|
|
|
ret = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
|
|
|
|
0x09, 0x00,
|
|
|
|
0x01, 0x00, NULL, 0x00, 100);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
2008-07-22 04:09:07 -06:00
|
|
|
if (tty && (tty->termios->c_cflag & CBAUD))
|
2008-02-07 15:59:03 -07:00
|
|
|
priv->line_control = MCR_DTR | MCR_RTS;
|
|
|
|
else
|
|
|
|
priv->line_control = 0;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
|
|
|
|
spcp8x5_set_ctrlLine(serial->dev, priv->line_control , priv->type);
|
|
|
|
|
|
|
|
/* Setup termios */
|
2008-07-22 04:09:07 -06:00
|
|
|
if (tty)
|
|
|
|
spcp8x5_set_termios(tty, port, &tmp_termios);
|
2008-02-07 15:59:03 -07:00
|
|
|
|
|
|
|
spcp8x5_get_msr(serial->dev, &status, priv->type);
|
|
|
|
|
|
|
|
/* may be we should update uart status here but now we did not do */
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
priv->line_status = status & 0xf0 ;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
|
|
|
|
/* FIXME: need to assert RTS and DTR if CRTSCTS off */
|
|
|
|
|
|
|
|
dbg("%s - submitting read urb", __func__);
|
|
|
|
port->read_urb->dev = serial->dev;
|
|
|
|
ret = usb_submit_urb(port->read_urb, GFP_KERNEL);
|
|
|
|
if (ret) {
|
2008-07-22 04:09:07 -06:00
|
|
|
spcp8x5_close(tty, port, NULL);
|
2008-02-07 15:59:03 -07:00
|
|
|
return -EPROTO;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* bulk read call back function. check the status of the urb. if transfer
|
|
|
|
* failed return. then update the status and the tty send data to tty subsys.
|
|
|
|
* submit urb again.
|
|
|
|
*/
|
|
|
|
static void spcp8x5_read_bulk_callback(struct urb *urb)
|
|
|
|
{
|
|
|
|
struct usb_serial_port *port = urb->context;
|
|
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
|
|
struct tty_struct *tty;
|
|
|
|
unsigned char *data = urb->transfer_buffer;
|
|
|
|
unsigned long flags;
|
|
|
|
int i;
|
|
|
|
int result;
|
|
|
|
u8 status = 0;
|
|
|
|
char tty_flag;
|
|
|
|
|
|
|
|
dev_dbg(&port->dev, "start, urb->status = %d, "
|
|
|
|
"urb->actual_length = %d\n,", urb->status, urb->actual_length);
|
|
|
|
|
|
|
|
/* check the urb status */
|
|
|
|
if (urb->status) {
|
2008-07-22 04:09:07 -06:00
|
|
|
if (!port->port.count)
|
2008-02-07 15:59:03 -07:00
|
|
|
return;
|
|
|
|
if (urb->status == -EPROTO) {
|
|
|
|
/* spcp8x5 mysteriously fails with -EPROTO */
|
|
|
|
/* reschedule the read */
|
|
|
|
urb->status = 0;
|
|
|
|
urb->dev = port->serial->dev;
|
|
|
|
result = usb_submit_urb(urb , GFP_ATOMIC);
|
|
|
|
if (result)
|
|
|
|
dev_dbg(&port->dev,
|
|
|
|
"failed submitting read urb %d\n",
|
|
|
|
result);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
dev_dbg(&port->dev, "unable to handle the error, exiting.\n");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* get tty_flag from status */
|
|
|
|
tty_flag = TTY_NORMAL;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
status = priv->line_status;
|
|
|
|
priv->line_status &= ~UART_STATE_TRANSIENT_MASK;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
/* wake up the wait for termios */
|
|
|
|
wake_up_interruptible(&priv->delta_msr_wait);
|
|
|
|
|
|
|
|
/* break takes precedence over parity, which takes precedence over
|
|
|
|
* framing errors */
|
|
|
|
if (status & UART_BREAK_ERROR)
|
|
|
|
tty_flag = TTY_BREAK;
|
|
|
|
else if (status & UART_PARITY_ERROR)
|
|
|
|
tty_flag = TTY_PARITY;
|
|
|
|
else if (status & UART_FRAME_ERROR)
|
|
|
|
tty_flag = TTY_FRAME;
|
|
|
|
dev_dbg(&port->dev, "tty_flag = %d\n", tty_flag);
|
|
|
|
|
2008-07-22 04:09:07 -06:00
|
|
|
tty = port->port.tty;
|
2008-02-07 15:59:03 -07:00
|
|
|
if (tty && urb->actual_length) {
|
|
|
|
tty_buffer_request_room(tty, urb->actual_length + 1);
|
|
|
|
/* overrun is special, not associated with a char */
|
|
|
|
if (status & UART_OVERRUN_ERROR)
|
|
|
|
tty_insert_flip_char(tty, 0, TTY_OVERRUN);
|
|
|
|
for (i = 0; i < urb->actual_length; ++i)
|
|
|
|
tty_insert_flip_char(tty, data[i], tty_flag);
|
|
|
|
tty_flip_buffer_push(tty);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Schedule the next read _if_ we are still open */
|
2008-07-22 04:09:07 -06:00
|
|
|
if (port->port.count) {
|
2008-02-07 15:59:03 -07:00
|
|
|
urb->dev = port->serial->dev;
|
|
|
|
result = usb_submit_urb(urb , GFP_ATOMIC);
|
|
|
|
if (result)
|
|
|
|
dev_dbg(&port->dev, "failed submitting read urb %d\n",
|
|
|
|
result);
|
|
|
|
}
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* get data from ring buffer and then write to usb bus */
|
|
|
|
static void spcp8x5_send(struct usb_serial_port *port)
|
|
|
|
{
|
|
|
|
int count, result;
|
|
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
|
|
|
|
if (priv->write_urb_in_use) {
|
|
|
|
dev_dbg(&port->dev, "write urb still used\n");
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* send the 1st urb for writting */
|
|
|
|
memset(port->write_urb->transfer_buffer , 0x00 , port->bulk_out_size);
|
|
|
|
count = get_ringbuf(priv->buf, port->write_urb->transfer_buffer,
|
|
|
|
port->bulk_out_size);
|
|
|
|
|
|
|
|
if (count == 0) {
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* update the urb status */
|
|
|
|
priv->write_urb_in_use = 1;
|
|
|
|
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
|
|
|
|
port->write_urb->transfer_buffer_length = count;
|
|
|
|
port->write_urb->dev = port->serial->dev;
|
|
|
|
|
|
|
|
result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
|
|
|
|
if (result) {
|
|
|
|
dev_dbg(&port->dev, "failed submitting write urb, error %d\n",
|
|
|
|
result);
|
|
|
|
priv->write_urb_in_use = 0;
|
|
|
|
/* TODO: reschedule spcp8x5_send */
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
schedule_work(&port->work);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* this is the call back function for write urb. NOTE we should not sleep in
|
|
|
|
* this routine. check the urb return code and then submit the write urb again
|
|
|
|
* to hold the write loop */
|
|
|
|
static void spcp8x5_write_bulk_callback(struct urb *urb)
|
|
|
|
{
|
|
|
|
struct usb_serial_port *port = urb->context;
|
|
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
|
|
int result;
|
|
|
|
|
|
|
|
switch (urb->status) {
|
|
|
|
case 0:
|
|
|
|
/* success */
|
|
|
|
break;
|
|
|
|
case -ECONNRESET:
|
|
|
|
case -ENOENT:
|
|
|
|
case -ESHUTDOWN:
|
|
|
|
/* this urb is terminated, clean up */
|
|
|
|
dev_dbg(&port->dev, "urb shutting down with status: %d\n",
|
|
|
|
urb->status);
|
|
|
|
priv->write_urb_in_use = 0;
|
|
|
|
return;
|
|
|
|
default:
|
|
|
|
/* error in the urb, so we have to resubmit it */
|
|
|
|
dbg("%s - Overflow in write", __func__);
|
|
|
|
dbg("%s - nonzero write bulk status received: %d",
|
|
|
|
__func__, urb->status);
|
|
|
|
port->write_urb->transfer_buffer_length = 1;
|
|
|
|
port->write_urb->dev = port->serial->dev;
|
|
|
|
result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
|
|
|
|
if (result)
|
|
|
|
dev_dbg(&port->dev,
|
|
|
|
"failed resubmitting write urb %d\n", result);
|
|
|
|
else
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
priv->write_urb_in_use = 0;
|
|
|
|
|
|
|
|
/* send any buffered data */
|
|
|
|
spcp8x5_send(port);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* write data to ring buffer. and then start the write transfer */
|
2008-07-22 04:09:07 -06:00
|
|
|
static int spcp8x5_write(struct tty_struct *tty, struct usb_serial_port *port,
|
2008-02-07 15:59:03 -07:00
|
|
|
const unsigned char *buf, int count)
|
|
|
|
{
|
|
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
dev_dbg(&port->dev, "%d bytes\n", count);
|
|
|
|
|
|
|
|
if (!count)
|
|
|
|
return count;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
count = put_ringbuf(priv->buf, buf, count);
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
|
|
|
|
spcp8x5_send(port);
|
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int spcp8x5_wait_modem_info(struct usb_serial_port *port,
|
|
|
|
unsigned int arg)
|
|
|
|
{
|
|
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
|
|
unsigned long flags;
|
|
|
|
unsigned int prevstatus;
|
|
|
|
unsigned int status;
|
|
|
|
unsigned int changed;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
prevstatus = priv->line_status;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
|
|
|
|
while (1) {
|
|
|
|
/* wake up in bulk read */
|
|
|
|
interruptible_sleep_on(&priv->delta_msr_wait);
|
|
|
|
|
|
|
|
/* see if a signal did it */
|
|
|
|
if (signal_pending(current))
|
|
|
|
return -ERESTARTSYS;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
status = priv->line_status;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
|
|
|
|
changed = prevstatus^status;
|
|
|
|
|
|
|
|
if (((arg & TIOCM_RNG) && (changed & MSR_STATUS_LINE_RI)) ||
|
|
|
|
((arg & TIOCM_DSR) && (changed & MSR_STATUS_LINE_DSR)) ||
|
|
|
|
((arg & TIOCM_CD) && (changed & MSR_STATUS_LINE_DCD)) ||
|
|
|
|
((arg & TIOCM_CTS) && (changed & MSR_STATUS_LINE_CTS)))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
prevstatus = status;
|
|
|
|
}
|
|
|
|
/* NOTREACHED */
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-07-22 04:09:07 -06:00
|
|
|
static int spcp8x5_ioctl(struct tty_struct *tty, struct file *file,
|
2008-02-07 15:59:03 -07:00
|
|
|
unsigned int cmd, unsigned long arg)
|
|
|
|
{
|
2008-07-22 04:09:07 -06:00
|
|
|
struct usb_serial_port *port = tty->driver_data;
|
2008-02-07 15:59:03 -07:00
|
|
|
dbg("%s (%d) cmd = 0x%04x", __func__, port->number, cmd);
|
|
|
|
|
|
|
|
switch (cmd) {
|
|
|
|
case TIOCMIWAIT:
|
|
|
|
dbg("%s (%d) TIOCMIWAIT", __func__, port->number);
|
|
|
|
return spcp8x5_wait_modem_info(port, arg);
|
|
|
|
|
|
|
|
default:
|
|
|
|
dbg("%s not supported = 0x%04x", __func__, cmd);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return -ENOIOCTLCMD;
|
|
|
|
}
|
|
|
|
|
2008-07-22 04:09:07 -06:00
|
|
|
static int spcp8x5_tiocmset(struct tty_struct *tty, struct file *file,
|
2008-02-07 15:59:03 -07:00
|
|
|
unsigned int set, unsigned int clear)
|
|
|
|
{
|
2008-07-22 04:09:07 -06:00
|
|
|
struct usb_serial_port *port = tty->driver_data;
|
2008-02-07 15:59:03 -07:00
|
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
|
|
unsigned long flags;
|
|
|
|
u8 control;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
if (set & TIOCM_RTS)
|
|
|
|
priv->line_control |= MCR_RTS;
|
|
|
|
if (set & TIOCM_DTR)
|
|
|
|
priv->line_control |= MCR_DTR;
|
|
|
|
if (clear & TIOCM_RTS)
|
|
|
|
priv->line_control &= ~MCR_RTS;
|
|
|
|
if (clear & TIOCM_DTR)
|
|
|
|
priv->line_control &= ~MCR_DTR;
|
|
|
|
control = priv->line_control;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
|
|
|
|
return spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type);
|
|
|
|
}
|
|
|
|
|
2008-07-22 04:09:07 -06:00
|
|
|
static int spcp8x5_tiocmget(struct tty_struct *tty, struct file *file)
|
2008-02-07 15:59:03 -07:00
|
|
|
{
|
2008-07-22 04:09:07 -06:00
|
|
|
struct usb_serial_port *port = tty->driver_data;
|
2008-02-07 15:59:03 -07:00
|
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
|
|
unsigned long flags;
|
|
|
|
unsigned int mcr;
|
|
|
|
unsigned int status;
|
|
|
|
unsigned int result;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
mcr = priv->line_control;
|
|
|
|
status = priv->line_status;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
|
|
|
|
result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0)
|
|
|
|
| ((mcr & MCR_RTS) ? TIOCM_RTS : 0)
|
|
|
|
| ((status & MSR_STATUS_LINE_CTS) ? TIOCM_CTS : 0)
|
|
|
|
| ((status & MSR_STATUS_LINE_DSR) ? TIOCM_DSR : 0)
|
|
|
|
| ((status & MSR_STATUS_LINE_RI) ? TIOCM_RI : 0)
|
|
|
|
| ((status & MSR_STATUS_LINE_DCD) ? TIOCM_CD : 0);
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* get the avail space room in ring buffer */
|
2008-07-22 04:09:07 -06:00
|
|
|
static int spcp8x5_write_room(struct tty_struct *tty)
|
2008-02-07 15:59:03 -07:00
|
|
|
{
|
2008-07-22 04:09:07 -06:00
|
|
|
struct usb_serial_port *port = tty->driver_data;
|
2008-02-07 15:59:03 -07:00
|
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
|
|
int room = 0;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
room = ringbuf_avail_space(priv->buf);
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
|
|
|
|
return room;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* get the number of avail data in write ring buffer */
|
2008-07-22 04:09:07 -06:00
|
|
|
static int spcp8x5_chars_in_buffer(struct tty_struct *tty)
|
2008-02-07 15:59:03 -07:00
|
|
|
{
|
2008-07-22 04:09:07 -06:00
|
|
|
struct usb_serial_port *port = tty->driver_data;
|
2008-02-07 15:59:03 -07:00
|
|
|
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
|
|
|
|
int chars = 0;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
chars = ringbuf_avail_data(priv->buf);
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
|
|
|
|
return chars;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* All of the device info needed for the spcp8x5 SIO serial converter */
|
|
|
|
static struct usb_serial_driver spcp8x5_device = {
|
|
|
|
.driver = {
|
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.name = "SPCP8x5",
|
|
|
|
},
|
|
|
|
.id_table = id_table,
|
|
|
|
.num_ports = 1,
|
|
|
|
.open = spcp8x5_open,
|
|
|
|
.close = spcp8x5_close,
|
|
|
|
.write = spcp8x5_write,
|
|
|
|
.set_termios = spcp8x5_set_termios,
|
|
|
|
.ioctl = spcp8x5_ioctl,
|
|
|
|
.tiocmget = spcp8x5_tiocmget,
|
|
|
|
.tiocmset = spcp8x5_tiocmset,
|
|
|
|
.write_room = spcp8x5_write_room,
|
|
|
|
.read_bulk_callback = spcp8x5_read_bulk_callback,
|
|
|
|
.write_bulk_callback = spcp8x5_write_bulk_callback,
|
|
|
|
.chars_in_buffer = spcp8x5_chars_in_buffer,
|
|
|
|
.attach = spcp8x5_startup,
|
|
|
|
.shutdown = spcp8x5_shutdown,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int __init spcp8x5_init(void)
|
|
|
|
{
|
|
|
|
int retval;
|
|
|
|
retval = usb_serial_register(&spcp8x5_device);
|
|
|
|
if (retval)
|
|
|
|
goto failed_usb_serial_register;
|
|
|
|
retval = usb_register(&spcp8x5_driver);
|
|
|
|
if (retval)
|
|
|
|
goto failed_usb_register;
|
|
|
|
info(DRIVER_DESC " " DRIVER_VERSION);
|
|
|
|
return 0;
|
|
|
|
failed_usb_register:
|
|
|
|
usb_serial_deregister(&spcp8x5_device);
|
|
|
|
failed_usb_serial_register:
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit spcp8x5_exit(void)
|
|
|
|
{
|
|
|
|
usb_deregister(&spcp8x5_driver);
|
|
|
|
usb_serial_deregister(&spcp8x5_device);
|
|
|
|
}
|
|
|
|
|
|
|
|
module_init(spcp8x5_init);
|
|
|
|
module_exit(spcp8x5_exit);
|
|
|
|
|
|
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
|
|
MODULE_VERSION(DRIVER_VERSION);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
|
|
|
|
module_param(debug, bool, S_IRUGO | S_IWUSR);
|
|
|
|
MODULE_PARM_DESC(debug, "Debug enabled or not");
|