--- /dev/null
+26a27
+> #include <linux/moduleparam.h>
+29,48d29
+<
+< #if LINUX26
+<
+< #include <linux/moduleparam.h>
+< #define DEV_ERR(dev,format,arg...) dev_err(dev,format, ## arg)
+< #define USB_KILL_URB usb_kill_urb
+<
+< #else /* !LINUX26 */
+<
+< #ifdef CONFIG_USB_SERIAL_DEBUG
+< static int debug = 1;
+< #else
+< static int debug;
+< #endif
+<
+< #define DEV_ERR(dev,format,arg...) err(format, ## arg)
+< #define USB_KILL_URB usb_unlink_urb
+<
+< #endif /* LINUX26 */
+<
+54,55c35,36
+< #define DRIVER_VERSION "v0.10"
+< #define DRIVER_DESC "Silicon Labs CP2101/CP2102/CP2103 RS232 serial adaptor driver"
+---
+> #define DRIVER_VERSION "v0.05"
+> #define DRIVER_DESC "Silicon Labs CP2101/CP2102 RS232 serial adaptor driver"
+60c41
+< static int cp2101_open(struct usb_serial_port*, struct file*);
+---
+> static int cp2101_open(struct usb_serial_port*, struct file*);
+64a46,48
+> static int cp2101_tiocmget (struct usb_serial_port *, struct file *);
+> static int cp2101_tiocmset (struct usb_serial_port *, struct file *,
+> unsigned int, unsigned int);
+66c50
+< static int cp2101_startup (struct usb_serial *);
+---
+> static int cp2101_startup (struct usb_serial *);
+68,70c52
+< static int cp2101_ioctl (struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg);
+< static int cp2101_tiocmget (struct usb_serial_port *, struct file *);
+< static int cp2101_tiocmset (struct usb_serial_port *, struct file *, unsigned int, unsigned int);
+---
+>
+74a57
+> { USB_DEVICE(0x0FCF, 0x1003) }, /* Dynastream ANT development board */
+76a60,61
+> { USB_DEVICE(0x10C4, 0x80F6) }, /* Suunto sports instrument */
+> { USB_DEVICE(0x10A6, 0xAA26) }, /* Knock-off DCU-11 cable */
+77a63
+> { USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */
+83d68
+< #if LINUX26
+86c71
+< .name = "CP2101",
+---
+> .name = "cp2101",
+91,92d75
+< #define USB_SUBMIT_URB_ATOMIC(_x_) usb_submit_urb(_x_ , GFP_ATOMIC)
+< #define USB_SUBMIT_URB_KERNEL(_x_) usb_submit_urb(_x_ , GFP_KERNEL)
+94,103c77,82
+< #else /* LINUX26 */
+<
+< #define USB_SUBMIT_URB_ATOMIC(_x_) usb_submit_urb(_x_)
+< #define USB_SUBMIT_URB_KERNEL(_x_) usb_submit_urb(_x_)
+< #endif
+<
+< static struct usb_serial_device_type cp2101_device = {
+< .owner = THIS_MODULE,
+< .name = "CP2101/CP2102/CP2103 USB to UART Bridge",
+< .id_table = id_table,
+---
+> static struct usb_serial_driver cp2101_device = {
+> .driver = {
+> .owner = THIS_MODULE,
+> .name = "cp2101",
+> },
+> .id_table = id_table,
+107,111c86,89
+< .num_ports = 1,
+< .open = cp2101_open,
+< .close = cp2101_close,
+< .ioctl = cp2101_ioctl, /* GLA, Added backport */
+< .break_ctl = cp2101_break_ctl,
+---
+> .num_ports = 1,
+> .open = cp2101_open,
+> .close = cp2101_close,
+> .break_ctl = cp2101_break_ctl,
+113,120c91,94
+< .shutdown = cp2101_shutdown,
+< #if LINUX26
+< .tiocmget = cp2101_tiocmget,
+< .tiocmset = cp2101_tiocmset,
+< .attach = cp2101_startup
+< #else
+< .startup = cp2101_startup
+< #endif
+---
+> .tiocmget = cp2101_tiocmget,
+> .tiocmset = cp2101_tiocmset,
+> .attach = cp2101_startup,
+> .shutdown = cp2101_shutdown,
+128,134c102,108
+< #define CP2101_UART 0x00 /* Enable / Disable */
+< #define CP2101_BAUDRATE 0x01 /* (BAUD_RATE_GEN_FREQ / baudrate) */
+< #define CP2101_BITS 0x03 /* 0x(0)(databits)(parity)(stopbits) */
+< #define CP2101_BREAK 0x05 /* On / Off */
+< #define CP2101_CONTROL 0x07 /* Flow control line states */
+< #define CP2101_MODEMCTL 0x13 /* Modem controls */
+< #define CP2101_CONFIG_6 0x19 /* 6 bytes of config data ??? */
+---
+> #define CP2101_UART 0x00 /* Enable / Disable */
+> #define CP2101_BAUDRATE 0x01 /* (BAUD_RATE_GEN_FREQ / baudrate) */
+> #define CP2101_BITS 0x03 /* 0x(0)(databits)(parity)(stopbits) */
+> #define CP2101_BREAK 0x05 /* On / Off */
+> #define CP2101_CONTROL 0x07 /* Flow control line states */
+> #define CP2101_MODEMCTL 0x13 /* Modem controls */
+> #define CP2101_CONFIG_6 0x19 /* 6 bytes of config data ??? */
+137,138c111,112
+< #define UART_ENABLE 0x0001
+< #define UART_DISABLE 0x0000
+---
+> #define UART_ENABLE 0x0001
+> #define UART_DISABLE 0x0000
+141c115
+< #define BAUD_RATE_GEN_FREQ 0x384000
+---
+> #define BAUD_RATE_GEN_FREQ 0x384000
+144,161c118,135
+< #define BITS_DATA_MASK 0x0f00
+< #define BITS_DATA_5 0x0500
+< #define BITS_DATA_6 0x0600
+< #define BITS_DATA_7 0x0700
+< #define BITS_DATA_8 0x0800
+< #define BITS_DATA_9 0x0900
+<
+< #define BITS_PARITY_MASK 0x00f0
+< #define BITS_PARITY_NONE 0x0000
+< #define BITS_PARITY_ODD 0x0010
+< #define BITS_PARITY_EVEN 0x0020
+< #define BITS_PARITY_MARK 0x0030
+< #define BITS_PARITY_SPACE 0x0040
+<
+< #define BITS_STOP_MASK 0x000f
+< #define BITS_STOP_1 0x0000
+< #define BITS_STOP_1_5 0x0001
+< #define BITS_STOP_2 0x0002
+---
+> #define BITS_DATA_MASK 0X0f00
+> #define BITS_DATA_5 0X0500
+> #define BITS_DATA_6 0X0600
+> #define BITS_DATA_7 0X0700
+> #define BITS_DATA_8 0X0800
+> #define BITS_DATA_9 0X0900
+>
+> #define BITS_PARITY_MASK 0x00f0
+> #define BITS_PARITY_NONE 0x0000
+> #define BITS_PARITY_ODD 0x0010
+> #define BITS_PARITY_EVEN 0x0020
+> #define BITS_PARITY_MARK 0x0030
+> #define BITS_PARITY_SPACE 0x0040
+>
+> #define BITS_STOP_MASK 0x000f
+> #define BITS_STOP_1 0x0000
+> #define BITS_STOP_1_5 0x0001
+> #define BITS_STOP_2 0x0002
+164,165c138,139
+< #define BREAK_ON 0x0000
+< #define BREAK_OFF 0x0001
+---
+> #define BREAK_ON 0x0000
+> #define BREAK_OFF 0x0001
+168,175c142,149
+< #define CONTROL_DTR 0x0001
+< #define CONTROL_RTS 0x0002
+< #define CONTROL_CTS 0x0010
+< #define CONTROL_DSR 0x0020
+< #define CONTROL_RING 0x0040
+< #define CONTROL_DCD 0x0080
+< #define CONTROL_WRITE_DTR 0x0100
+< #define CONTROL_WRITE_RTS 0x0200
+---
+> #define CONTROL_DTR 0x0001
+> #define CONTROL_RTS 0x0002
+> #define CONTROL_CTS 0x0010
+> #define CONTROL_DSR 0x0020
+> #define CONTROL_RING 0x0040
+> #define CONTROL_DCD 0x0080
+> #define CONTROL_WRITE_DTR 0x0100
+> #define CONTROL_WRITE_RTS 0x0200
+198c172
+< DEV_ERR(&port->dev,"%s - out of memory.\n", __FUNCTION__);
+---
+> dev_err(&port->dev, "%s - out of memory.\n", __FUNCTION__);
+206,215c180,182
+< result = usb_control_msg (
+< serial->dev,
+< usb_rcvctrlpipe (serial->dev, 0),
+< request,
+< REQTYPE_DEVICE_TO_HOST,
+< 0x0000,
+< 0,
+< buf,
+< size,
+< 300);
+---
+> result = usb_control_msg (serial->dev,usb_rcvctrlpipe (serial->dev, 0),
+> request, REQTYPE_DEVICE_TO_HOST, 0x0000,
+> 0, buf, size, 300);
+218c185,186
+< for (i=0; i<length; i++) data[i] = le32_to_cpu(buf[i]);
+---
+> for (i=0; i<length; i++)
+> data[i] = le32_to_cpu(buf[i]);
+223c191
+< DEV_ERR(&port->dev,"%s - Unable to send config request, "
+---
+> dev_err(&port->dev, "%s - Unable to send config request, "
+250c218
+< DEV_ERR(&port->dev,"%s - out of memory.\n",
+---
+> dev_err(&port->dev, "%s - out of memory.\n",
+256c224,225
+< for (i = 0; i < length; i++) buf[i] = cpu_to_le32(data[i]);
+---
+> for (i = 0; i < length; i++)
+> buf[i] = cpu_to_le32(data[i]);
+259,268c228,231
+< result = usb_control_msg (
+< serial->dev,
+< usb_sndctrlpipe(serial->dev, 0),
+< request,
+< REQTYPE_HOST_TO_DEVICE,
+< 0x0000,
+< 0,
+< buf,
+< size,
+< 300);
+---
+> result = usb_control_msg (serial->dev,
+> usb_sndctrlpipe(serial->dev, 0),
+> request, REQTYPE_HOST_TO_DEVICE, 0x0000,
+> 0, buf, size, 300);
+270,279c233,236
+< result = usb_control_msg (
+< serial->dev,
+< usb_sndctrlpipe(serial->dev, 0),
+< request,
+< REQTYPE_HOST_TO_DEVICE,
+< data[0],
+< 0,
+< NULL,
+< 0,
+< 300);
+---
+> result = usb_control_msg (serial->dev,
+> usb_sndctrlpipe(serial->dev, 0),
+> request, REQTYPE_HOST_TO_DEVICE, data[0],
+> 0, NULL, 0, 300);
+285c242
+< DEV_ERR(&port->dev,"%s - Unable to send request, "
+---
+> dev_err(&port->dev, "%s - Unable to send request, "
+292,301c249,252
+< result = usb_control_msg (
+< serial->dev,
+< usb_sndctrlpipe(serial->dev, 0),
+< request,
+< REQTYPE_HOST_TO_DEVICE,
+< data[0],
+< 0,
+< NULL,
+< 0,
+< 300);
+---
+> result = usb_control_msg (serial->dev,
+> usb_sndctrlpipe(serial->dev, 0),
+> request, REQTYPE_HOST_TO_DEVICE, data[0],
+> 0, NULL, 0, 300);
+324c275
+< DEV_ERR(&port->dev, "%s - Unable to enable UART\n",
+---
+> dev_err(&port->dev, "%s - Unable to enable UART\n",
+337c288
+< result = USB_SUBMIT_URB_KERNEL(port->read_urb);
+---
+> result = usb_submit_urb(port->read_urb, GFP_KERNEL);
+339c290
+< DEV_ERR(&port->dev, "%s - failed resubmitting read urb, "
+---
+> dev_err(&port->dev, "%s - failed resubmitting read urb, "
+359c310
+< if (serial != NULL && serial->dev) {
+---
+> if (serial->dev) {
+362c313
+< USB_KILL_URB(port->write_urb);
+---
+> usb_kill_urb(port->write_urb);
+364c315
+< USB_KILL_URB(port->read_urb);
+---
+> usb_kill_urb(port->read_urb);
+366,374d316
+<
+< #if LINUX26
+< kfree (usb_get_serial_port_data(port));
+< usb_set_serial_port_data(port, NULL);
+< #else
+< /*TODOGLA: port.private maybe?
+< Nobody is using that at the moement in this driver*/
+< #endif
+<
+383,384c325,326
+< USB_KILL_URB(port->write_urb);
+< USB_KILL_URB(port->read_urb);
+---
+> usb_kill_urb(port->write_urb);
+> usb_kill_urb(port->read_urb);
+615c557
+< DEV_ERR(&port->dev, "cp2101 driver does not "
+---
+> dev_err(&port->dev, "cp2101 driver does not "
+625c567
+< DEV_ERR(&port->dev, "Baud rate requested not "
+---
+> dev_err(&port->dev, "Baud rate requested not "
+656c598
+< DEV_ERR(&port->dev, "cp2101 driver does not "
+---
+> dev_err(&port->dev, "cp2101 driver does not "
+663c605
+< DEV_ERR(&port->dev,"Number of data bits requested "
+---
+> dev_err(&port->dev, "Number of data bits requested "
+680c622
+< DEV_ERR(&port->dev,"Parity mode not supported "
+---
+> dev_err(&port->dev, "Parity mode not supported "
+695c637
+< DEV_ERR(&port->dev,"Number of stop bits requested "
+---
+> dev_err(&port->dev, "Number of stop bits requested "
+789,827d730
+< static int cp2101_ioctl (struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg)
+< {
+< dbg("%s (%d) cmd = 0x%04x", __FUNCTION__, port->number, cmd);
+<
+< switch (cmd) {
+<
+< #if !LINUX26
+< case TIOCMGET:
+< {
+< int result = cp2101_tiocmget(port, file);
+< if (copy_to_user(&arg, &result, sizeof(int)))
+< return -EFAULT;
+< }
+< break;
+<
+< case TIOCMSET:
+< case TIOCMBIS:
+<
+< case TIOCMBIC:
+< {
+< int val = 0;
+<
+< if (copy_from_user(&val, &arg, sizeof(int)))
+< return -EFAULT;
+<
+< if(cp2101_tiocmset(port, file, cmd==TIOCMBIC?0:val, cmd==TIOCMBIC?val:0))
+< return -EFAULT;
+< }
+< break;
+< #endif
+<
+< default:
+< dbg("%s not supported = 0x%04x", __FUNCTION__, cmd);
+< break;
+< }
+<
+< return -ENOIOCTLCMD;
+< }
+<
+843d745
+< #if LINUX26
+845,847d746
+< #else
+< cp2101_cleanup(&serial->port[i]);
+< #endif
+859,860c758
+< #if LINUX26
+< retval = usb_register(&cp2101_driver);
+---
+> retval = usb_register(&cp2101_driver);
+866c764
+< #endif
+---
+>
+874d771
+< #if LINUX26
+876d772
+< #endif
+883a780
+> MODULE_VERSION(DRIVER_VERSION);
+886,887d782
+< #if LINUX26
+< MODULE_VERSION(DRIVER_VERSION);
+889,891d783
+< #else
+< MODULE_PARM(debug, "i");
+< #endif
--- /dev/null
+/*
+ * Silicon Laboratories CP2101/CP2102/CP2103 USB to RS232 serial adaptor driver
+ *
+ * Copyright (C) 2005 Craig Shelley (craig@microtron.org.uk)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * Support to set flow control line levels using TIOCMGET and TIOCMSET
+ * thanks to Karl Hiramoto karl@hiramoto.org. RTSCTS hardware flow
+ * control thanks to Munir Nassar nassarmu@real-time.com
+ *
+ * Outstanding Issues:
+ * Buffers are not flushed when the port is opened.
+ * Multiple calls to write() may fail with "Resource temporarily unavailable"
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/version.h>
+#include <asm/uaccess.h>
+
+#ifndef KERNEL_VERSION
+#define KERNEL_VERSION(a,b,c) ((a)*65536 + (b)*256 + (c))
+#endif
+
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,0)
+#ifdef LINUX26
+#undef LINUX26
+#endif
+#define LINUX26
+#endif
+
+#ifdef LINUX26
+
+#include <linux/moduleparam.h>
+#define DEV_ERR(dev,format,arg...) dev_err(dev,format, ## arg)
+#define USB_KILL_URB usb_kill_urb
+
+#else /* !LINUX26 */
+
+#ifdef CONFIG_USB_SERIAL_DEBUG
+ static int debug = 1;
+#else
+ static int debug;
+#endif
+
+#define DEV_ERR(dev,format,arg...) err(format, ## arg)
+#define USB_KILL_URB usb_unlink_urb
+
+#endif /* LINUX26 */
+
+#include "usb-serial.h"
+
+/*
+ * Version Information
+ * RJM: updated to 0.11 for 2.6.15 and later kernels
+ */
+#define DRIVER_VERSION "v0.11"
+#define DRIVER_DESC "Silicon Labs CP2101/CP2102/CP2103 RS232 serial adaptor driver"
+
+/*
+ * Function Prototypes
+ */
+static int cp2101_open(struct usb_serial_port*, struct file*);
+static void cp2101_cleanup(struct usb_serial_port*);
+static void cp2101_close(struct usb_serial_port*, struct file*);
+static void cp2101_get_termios(struct usb_serial_port*);
+static void cp2101_set_termios(struct usb_serial_port*, struct termios*);
+static void cp2101_break_ctl(struct usb_serial_port*, int);
+static int cp2101_startup (struct usb_serial *);
+static void cp2101_shutdown(struct usb_serial*);
+static int cp2101_ioctl (struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg);
+static int cp2101_tiocmget (struct usb_serial_port *, struct file *);
+static int cp2101_tiocmset (struct usb_serial_port *, struct file *, unsigned int, unsigned int);
+
+static int debug;
+
+static struct usb_device_id id_table [] = {
+ { USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
+ { USB_DEVICE(0x10C4, 0x80CA) }, /* Degree Controls Inc */
+ { USB_DEVICE(0x10AB, 0x10C5) }, /* Siemens MC60 Cable */
+ { } /* Terminating Entry */
+};
+
+MODULE_DEVICE_TABLE (usb, id_table);
+
+#ifdef LINUX26
+static struct usb_driver cp2101_driver = {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15)
+ .owner = THIS_MODULE,
+#endif
+ .name = "CP2101",
+ .probe = usb_serial_probe,
+ .disconnect = usb_serial_disconnect,
+ .id_table = id_table,
+};
+#define USB_SUBMIT_URB_ATOMIC(_x_) usb_submit_urb(_x_ , GFP_ATOMIC)
+#define USB_SUBMIT_URB_KERNEL(_x_) usb_submit_urb(_x_ , GFP_KERNEL)
+
+#else /* LINUX26 */
+
+#define USB_SUBMIT_URB_ATOMIC(_x_) usb_submit_urb(_x_)
+#define USB_SUBMIT_URB_KERNEL(_x_) usb_submit_urb(_x_)
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)
+static struct usb_serial_driver cp2101_device = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "cp2101",
+ },
+#else
+static struct usb_serial_device_type cp2101_device = {
+ .owner = THIS_MODULE,
+ .name = "CP2101/CP2102/CP2103 USB to UART Bridge",
+#endif
+ .id_table = id_table,
+ .num_interrupt_in = 0,
+ .num_bulk_in = 0,
+ .num_bulk_out = 0,
+ .num_ports = 1,
+ .open = cp2101_open,
+ .close = cp2101_close,
+ .ioctl = cp2101_ioctl, /* GLA, Added backport */
+ .break_ctl = cp2101_break_ctl,
+ .set_termios = cp2101_set_termios,
+#ifdef LINUX26
+ .tiocmget = cp2101_tiocmget,
+ .tiocmset = cp2101_tiocmset,
+ .attach = cp2101_startup,
+#else
+ .startup = cp2101_startup,
+#endif
+ .shutdown = cp2101_shutdown
+};
+
+/* Config request types */
+#define REQTYPE_HOST_TO_DEVICE 0x41
+#define REQTYPE_DEVICE_TO_HOST 0xc1
+
+/* Config SET requests. To GET, add 1 to the request number */
+#define CP2101_UART 0x00 /* Enable / Disable */
+#define CP2101_BAUDRATE 0x01 /* (BAUD_RATE_GEN_FREQ / baudrate) */
+#define CP2101_BITS 0x03 /* 0x(0)(databits)(parity)(stopbits) */
+#define CP2101_BREAK 0x05 /* On / Off */
+#define CP2101_CONTROL 0x07 /* Flow control line states */
+#define CP2101_MODEMCTL 0x13 /* Modem controls */
+#define CP2101_CONFIG_6 0x19 /* 6 bytes of config data ??? */
+
+/* CP2101_UART */
+#define UART_ENABLE 0x0001
+#define UART_DISABLE 0x0000
+
+/* CP2101_BAUDRATE */
+#define BAUD_RATE_GEN_FREQ 0x384000
+
+/* CP2101_BITS */
+#define BITS_DATA_MASK 0x0f00
+#define BITS_DATA_5 0x0500
+#define BITS_DATA_6 0x0600
+#define BITS_DATA_7 0x0700
+#define BITS_DATA_8 0x0800
+#define BITS_DATA_9 0x0900
+
+#define BITS_PARITY_MASK 0x00f0
+#define BITS_PARITY_NONE 0x0000
+#define BITS_PARITY_ODD 0x0010
+#define BITS_PARITY_EVEN 0x0020
+#define BITS_PARITY_MARK 0x0030
+#define BITS_PARITY_SPACE 0x0040
+
+#define BITS_STOP_MASK 0x000f
+#define BITS_STOP_1 0x0000
+#define BITS_STOP_1_5 0x0001
+#define BITS_STOP_2 0x0002
+
+/* CP2101_BREAK */
+#define BREAK_ON 0x0000
+#define BREAK_OFF 0x0001
+
+/* CP2101_CONTROL */
+#define CONTROL_DTR 0x0001
+#define CONTROL_RTS 0x0002
+#define CONTROL_CTS 0x0010
+#define CONTROL_DSR 0x0020
+#define CONTROL_RING 0x0040
+#define CONTROL_DCD 0x0080
+#define CONTROL_WRITE_DTR 0x0100
+#define CONTROL_WRITE_RTS 0x0200
+
+/*
+ * cp2101_get_config
+ * Reads from the CP2101 configuration registers
+ * 'size' is specified in bytes.
+ * 'data' is a pointer to a pre-allocated array of integers large
+ * enough to hold 'size' bytes (with 4 bytes to each integer)
+ */
+static int cp2101_get_config(struct usb_serial_port* port, u8 request,
+ unsigned int *data, int size)
+{
+ struct usb_serial *serial = port->serial;
+ u32 *buf;
+ int result, i, length;
+
+ /* Number of integers required to contain the array */
+ length = (((size - 1) | 3) + 1)/4;
+
+ buf = kmalloc (length * sizeof(u32), GFP_KERNEL);
+ memset(buf, 0, length * sizeof(u32));
+
+ if (!buf) {
+ DEV_ERR(&port->dev,"%s - out of memory.\n", __FUNCTION__);
+ return -ENOMEM;
+ }
+
+ /* For get requests, the request number must be incremented */
+ request++;
+
+ /* Issue the request, attempting to read 'size' bytes */
+ result = usb_control_msg (
+ serial->dev,
+ usb_rcvctrlpipe (serial->dev, 0),
+ request,
+ REQTYPE_DEVICE_TO_HOST,
+ 0x0000,
+ 0,
+ buf,
+ size,
+ 300);
+
+ /* Convert data into an array of integers */
+ for (i=0; i<length; i++) data[i] = le32_to_cpu(buf[i]);
+
+ kfree(buf);
+
+ if (result != size) {
+ DEV_ERR(&port->dev,"%s - Unable to send config request, "
+ "request=0x%x size=%d result=%d\n",
+ __FUNCTION__, request, size, result);
+ return -EPROTO;
+ }
+
+ return 0;
+}
+
+/*
+ * cp2101_set_config
+ * Writes to the CP2101 configuration registers
+ * Values less than 16 bits wide are sent directly
+ * 'size' is specified in bytes.
+ */
+static int cp2101_set_config(struct usb_serial_port* port, u8 request,
+ unsigned int *data, int size)
+{
+ struct usb_serial *serial = port->serial;
+ u32 *buf;
+ int result, i, length;
+
+ /* Number of integers required to contain the array */
+ length = (((size - 1) | 3) + 1)/4;
+
+ buf = kmalloc(length * sizeof(u32), GFP_KERNEL);
+ if (!buf) {
+ DEV_ERR(&port->dev,"%s - out of memory.\n",
+ __FUNCTION__);
+ return -ENOMEM;
+ }
+
+ /* Array of integers into bytes */
+ for (i = 0; i < length; i++) buf[i] = cpu_to_le32(data[i]);
+
+ if (size > 2) {
+ result = usb_control_msg (
+ serial->dev,
+ usb_sndctrlpipe(serial->dev, 0),
+ request,
+ REQTYPE_HOST_TO_DEVICE,
+ 0x0000,
+ 0,
+ buf,
+ size,
+ 300);
+ } else {
+ result = usb_control_msg (
+ serial->dev,
+ usb_sndctrlpipe(serial->dev, 0),
+ request,
+ REQTYPE_HOST_TO_DEVICE,
+ data[0],
+ 0,
+ NULL,
+ 0,
+ 300);
+ }
+
+ kfree(buf);
+
+ if ((size > 2 && result != size) || result < 0) {
+ DEV_ERR(&port->dev,"%s - Unable to send request, "
+ "request=0x%x size=%d result=%d\n",
+ __FUNCTION__, request, size, result);
+ return -EPROTO;
+ }
+
+ /* Single data value */
+ result = usb_control_msg (
+ serial->dev,
+ usb_sndctrlpipe(serial->dev, 0),
+ request,
+ REQTYPE_HOST_TO_DEVICE,
+ data[0],
+ 0,
+ NULL,
+ 0,
+ 300);
+ return 0;
+}
+
+/*
+ * cp2101_set_config_single
+ * Convenience function for calling cp2101_set_config on single data values
+ * without requiring an integer pointer
+ */
+static inline int cp2101_set_config_single(struct usb_serial_port* port,
+ u8 request, unsigned int data)
+{
+ return cp2101_set_config(port, request, &data, 2);
+}
+
+static int cp2101_open (struct usb_serial_port *port, struct file *filp)
+{
+ struct usb_serial *serial = port->serial;
+ int result;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (cp2101_set_config_single(port, CP2101_UART, UART_ENABLE)) {
+ DEV_ERR(&port->dev, "%s - Unable to enable UART\n",
+ __FUNCTION__);
+ return -EPROTO;
+ }
+
+ /* Start reading from the device */
+ usb_fill_bulk_urb (port->read_urb, serial->dev,
+ usb_rcvbulkpipe(serial->dev,
+ port->bulk_in_endpointAddress),
+ port->read_urb->transfer_buffer,
+ port->read_urb->transfer_buffer_length,
+ serial->type->read_bulk_callback,
+ port);
+ result = USB_SUBMIT_URB_KERNEL(port->read_urb);
+ if (result) {
+ DEV_ERR(&port->dev, "%s - failed resubmitting read urb, "
+ "error %d\n", __FUNCTION__, result);
+ return result;
+ }
+
+ /* Configure the termios structure */
+ cp2101_get_termios(port);
+
+ /* Set the DTR and RTS pins low */
+ cp2101_tiocmset(port, NULL, TIOCM_DTR | TIOCM_RTS, 0);
+
+ return 0;
+}
+
+static void cp2101_cleanup (struct usb_serial_port *port)
+{
+ struct usb_serial *serial = port->serial;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (serial != NULL && serial->dev) {
+ /* shutdown any bulk reads that might be going on */
+ if (serial->num_bulk_out)
+ USB_KILL_URB(port->write_urb);
+ if (serial->num_bulk_in)
+ USB_KILL_URB(port->read_urb);
+ }
+
+#ifdef LINUX26
+ kfree (usb_get_serial_port_data(port));
+ usb_set_serial_port_data(port, NULL);
+#else
+ /*TODOGLA: port.private maybe?
+ Nobody is using that at the moement in this driver*/
+#endif
+
+}
+
+static void cp2101_close (struct usb_serial_port *port, struct file * filp)
+{
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ /* shutdown our urbs */
+ dbg("%s - shutting down urbs", __FUNCTION__);
+ USB_KILL_URB(port->write_urb);
+ USB_KILL_URB(port->read_urb);
+
+ cp2101_set_config_single(port, CP2101_UART, UART_DISABLE);
+}
+
+/*
+ * cp2101_get_termios
+ * Reads the baud rate, data bits, parity, stop bits and flow control mode
+ * from the device, corrects any unsupported values, and configures the
+ * termios structure to reflect the state of the device
+ */
+static void cp2101_get_termios (struct usb_serial_port *port)
+{
+ unsigned int cflag, modem_ctl[4];
+ int baud;
+ int bits;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if ((!port->tty) || (!port->tty->termios)) {
+ dbg("%s - no tty structures", __FUNCTION__);
+ return;
+ }
+ cflag = port->tty->termios->c_cflag;
+
+ cp2101_get_config(port, CP2101_BAUDRATE, &baud, 2);
+ /* Convert to baudrate */
+ if (baud)
+ baud = BAUD_RATE_GEN_FREQ / baud;
+
+ dbg("%s - baud rate = %d", __FUNCTION__, baud);
+ cflag &= ~CBAUD;
+ switch (baud) {
+ /*
+ * The baud rates which are commented out below
+ * appear to be supported by the device
+ * but are non-standard
+ */
+ case 600: cflag |= B600; break;
+ case 1200: cflag |= B1200; break;
+ case 1800: cflag |= B1800; break;
+ case 2400: cflag |= B2400; break;
+ case 4800: cflag |= B4800; break;
+ /*case 7200: cflag |= B7200; break;*/
+ case 9600: cflag |= B9600; break;
+ /*case 14400: cflag |= B14400; break;*/
+ case 19200: cflag |= B19200; break;
+ /*case 28800: cflag |= B28800; break;*/
+ case 38400: cflag |= B38400; break;
+ /*case 55854: cflag |= B55054; break;*/
+ case 57600: cflag |= B57600; break;
+ case 115200: cflag |= B115200; break;
+ /*case 127117: cflag |= B127117; break;*/
+ case 230400: cflag |= B230400; break;
+ case 460800: cflag |= B460800; break;
+ case 921600: cflag |= B921600; break;
+ /*case 3686400: cflag |= B3686400; break;*/
+ default:
+ dbg("%s - Baud rate is not supported, "
+ "using 9600 baud", __FUNCTION__);
+ cflag |= B9600;
+ cp2101_set_config_single(port, CP2101_BAUDRATE,
+ (BAUD_RATE_GEN_FREQ/9600));
+ break;
+ }
+
+ cp2101_get_config(port, CP2101_BITS, &bits, 2);
+ cflag &= ~CSIZE;
+ switch(bits & BITS_DATA_MASK) {
+ case BITS_DATA_5:
+ dbg("%s - data bits = 5", __FUNCTION__);
+ cflag |= CS5;
+ break;
+ case BITS_DATA_6:
+ dbg("%s - data bits = 6", __FUNCTION__);
+ cflag |= CS6;
+ break;
+ case BITS_DATA_7:
+ dbg("%s - data bits = 7", __FUNCTION__);
+ cflag |= CS7;
+ break;
+ case BITS_DATA_8:
+ dbg("%s - data bits = 8", __FUNCTION__);
+ cflag |= CS8;
+ break;
+ case BITS_DATA_9:
+ dbg("%s - data bits = 9 (not supported, "
+ "using 8 data bits)", __FUNCTION__);
+ cflag |= CS8;
+ bits &= ~BITS_DATA_MASK;
+ bits |= BITS_DATA_8;
+ cp2101_set_config(port, CP2101_BITS, &bits, 2);
+ break;
+ default:
+ dbg("%s - Unknown number of data bits, "
+ "using 8", __FUNCTION__);
+ cflag |= CS8;
+ bits &= ~BITS_DATA_MASK;
+ bits |= BITS_DATA_8;
+ cp2101_set_config(port, CP2101_BITS, &bits, 2);
+ break;
+ }
+
+ switch(bits & BITS_PARITY_MASK) {
+ case BITS_PARITY_NONE:
+ dbg("%s - parity = NONE", __FUNCTION__);
+ cflag &= ~PARENB;
+ break;
+ case BITS_PARITY_ODD:
+ dbg("%s - parity = ODD", __FUNCTION__);
+ cflag |= (PARENB|PARODD);
+ break;
+ case BITS_PARITY_EVEN:
+ dbg("%s - parity = EVEN", __FUNCTION__);
+ cflag &= ~PARODD;
+ cflag |= PARENB;
+ break;
+ case BITS_PARITY_MARK:
+ dbg("%s - parity = MARK (not supported, "
+ "disabling parity)", __FUNCTION__);
+ cflag &= ~PARENB;
+ bits &= ~BITS_PARITY_MASK;
+ cp2101_set_config(port, CP2101_BITS, &bits, 2);
+ break;
+ case BITS_PARITY_SPACE:
+ dbg("%s - parity = SPACE (not supported, "
+ "disabling parity)", __FUNCTION__);
+ cflag &= ~PARENB;
+ bits &= ~BITS_PARITY_MASK;
+ cp2101_set_config(port, CP2101_BITS, &bits, 2);
+ break;
+ default:
+ dbg("%s - Unknown parity mode, "
+ "disabling parity", __FUNCTION__);
+ cflag &= ~PARENB;
+ bits &= ~BITS_PARITY_MASK;
+ cp2101_set_config(port, CP2101_BITS, &bits, 2);
+ break;
+ }
+
+ cflag &= ~CSTOPB;
+ switch(bits & BITS_STOP_MASK) {
+ case BITS_STOP_1:
+ dbg("%s - stop bits = 1", __FUNCTION__);
+ break;
+ case BITS_STOP_1_5:
+ dbg("%s - stop bits = 1.5 (not supported, "
+ "using 1 stop bit)", __FUNCTION__);
+ bits &= ~BITS_STOP_MASK;
+ cp2101_set_config(port, CP2101_BITS, &bits, 2);
+ break;
+ case BITS_STOP_2:
+ dbg("%s - stop bits = 2", __FUNCTION__);
+ cflag |= CSTOPB;
+ break;
+ default:
+ dbg("%s - Unknown number of stop bits, "
+ "using 1 stop bit", __FUNCTION__);
+ bits &= ~BITS_STOP_MASK;
+ cp2101_set_config(port, CP2101_BITS, &bits, 2);
+ break;
+ }
+
+ cp2101_get_config(port, CP2101_MODEMCTL, modem_ctl, 16);
+ if (modem_ctl[0] & 0x0008) {
+ dbg("%s - flow control = CRTSCTS", __FUNCTION__);
+ cflag |= CRTSCTS;
+ } else {
+ dbg("%s - flow control = NONE", __FUNCTION__);
+ cflag &= ~CRTSCTS;
+ }
+
+ port->tty->termios->c_cflag = cflag;
+}
+
+static void cp2101_set_termios (struct usb_serial_port *port,
+ struct termios *old_termios)
+{
+ unsigned int cflag, old_cflag=0;
+ int baud=0, bits;
+ unsigned int modem_ctl[4];
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if ((!port->tty) || (!port->tty->termios)) {
+ dbg("%s - no tty structures", __FUNCTION__);
+ return;
+ }
+ cflag = port->tty->termios->c_cflag;
+
+ /* Check that they really want us to change something */
+ if (old_termios) {
+ if ((cflag == old_termios->c_cflag) &&
+ (RELEVANT_IFLAG(port->tty->termios->c_iflag)
+ == RELEVANT_IFLAG(old_termios->c_iflag))) {
+ dbg("%s - nothing to change...", __FUNCTION__);
+ return;
+ }
+
+ old_cflag = old_termios->c_cflag;
+ }
+
+ /* If the baud rate is to be updated*/
+ if ((cflag & CBAUD) != (old_cflag & CBAUD)) {
+ switch (cflag & CBAUD) {
+ /*
+ * The baud rates which are commented out below
+ * appear to be supported by the device
+ * but are non-standard
+ */
+ case B0: baud = 0; break;
+ case B600: baud = 600; break;
+ case B1200: baud = 1200; break;
+ case B1800: baud = 1800; break;
+ case B2400: baud = 2400; break;
+ case B4800: baud = 4800; break;
+ /*case B7200: baud = 7200; break;*/
+ case B9600: baud = 9600; break;
+ /*ase B14400: baud = 14400; break;*/
+ case B19200: baud = 19200; break;
+ /*case B28800: baud = 28800; break;*/
+ case B38400: baud = 38400; break;
+ /*case B55854: baud = 55054; break;*/
+ case B57600: baud = 57600; break;
+ case B115200: baud = 115200; break;
+ /*case B127117: baud = 127117; break;*/
+ case B230400: baud = 230400; break;
+ case B460800: baud = 460800; break;
+ case B921600: baud = 921600; break;
+ /*case B3686400: baud = 3686400; break;*/
+ default:
+ DEV_ERR(&port->dev, "cp2101 driver does not "
+ "support the baudrate requested\n");
+ break;
+ }
+
+ if (baud) {
+ dbg("%s - Setting baud rate to %d baud", __FUNCTION__,
+ baud);
+ if (cp2101_set_config_single(port, CP2101_BAUDRATE,
+ (BAUD_RATE_GEN_FREQ / baud)))
+ DEV_ERR(&port->dev, "Baud rate requested not "
+ "supported by device\n");
+ }
+ }
+
+ /* If the number of data bits is to be updated */
+ if ((cflag & CSIZE) != (old_cflag & CSIZE)) {
+ cp2101_get_config(port, CP2101_BITS, &bits, 2);
+ bits &= ~BITS_DATA_MASK;
+ switch (cflag & CSIZE) {
+ case CS5:
+ bits |= BITS_DATA_5;
+ dbg("%s - data bits = 5", __FUNCTION__);
+ break;
+ case CS6:
+ bits |= BITS_DATA_6;
+ dbg("%s - data bits = 6", __FUNCTION__);
+ break;
+ case CS7:
+ bits |= BITS_DATA_7;
+ dbg("%s - data bits = 7", __FUNCTION__);
+ break;
+ case CS8:
+ bits |= BITS_DATA_8;
+ dbg("%s - data bits = 8", __FUNCTION__);
+ break;
+ /*case CS9:
+ bits |= BITS_DATA_9;
+ dbg("%s - data bits = 9", __FUNCTION__);
+ break;*/
+ default:
+ DEV_ERR(&port->dev, "cp2101 driver does not "
+ "support the number of bits requested,"
+ " using 8 bit mode\n");
+ bits |= BITS_DATA_8;
+ break;
+ }
+ if (cp2101_set_config(port, CP2101_BITS, &bits, 2))
+ DEV_ERR(&port->dev,"Number of data bits requested "
+ "not supported by device\n");
+ }
+
+ if ((cflag & (PARENB|PARODD)) != (old_cflag & (PARENB|PARODD))) {
+ cp2101_get_config(port, CP2101_BITS, &bits, 2);
+ bits &= ~BITS_PARITY_MASK;
+ if (cflag & PARENB) {
+ if (cflag & PARODD) {
+ bits |= BITS_PARITY_ODD;
+ dbg("%s - parity = ODD", __FUNCTION__);
+ } else {
+ bits |= BITS_PARITY_EVEN;
+ dbg("%s - parity = EVEN", __FUNCTION__);
+ }
+ }
+ if (cp2101_set_config(port, CP2101_BITS, &bits, 2))
+ DEV_ERR(&port->dev,"Parity mode not supported "
+ "by device\n");
+ }
+
+ if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) {
+ cp2101_get_config(port, CP2101_BITS, &bits, 2);
+ bits &= ~BITS_STOP_MASK;
+ if (cflag & CSTOPB) {
+ bits |= BITS_STOP_2;
+ dbg("%s - stop bits = 2", __FUNCTION__);
+ } else {
+ bits |= BITS_STOP_1;
+ dbg("%s - stop bits = 1", __FUNCTION__);
+ }
+ if (cp2101_set_config(port, CP2101_BITS, &bits, 2))
+ DEV_ERR(&port->dev,"Number of stop bits requested "
+ "not supported by device\n");
+ }
+
+ if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) {
+ cp2101_get_config(port, CP2101_MODEMCTL, modem_ctl, 16);
+ dbg("%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x",
+ __FUNCTION__, modem_ctl[0], modem_ctl[1],
+ modem_ctl[2], modem_ctl[3]);
+
+ if (cflag & CRTSCTS) {
+ modem_ctl[0] &= ~0x7B;
+ modem_ctl[0] |= 0x09;
+ modem_ctl[1] = 0x80;
+ dbg("%s - flow control = CRTSCTS", __FUNCTION__);
+ } else {
+ modem_ctl[0] &= ~0x7B;
+ modem_ctl[0] |= 0x01;
+ modem_ctl[1] |= 0x40;
+ dbg("%s - flow control = NONE", __FUNCTION__);
+ }
+
+ dbg("%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x",
+ __FUNCTION__, modem_ctl[0], modem_ctl[1],
+ modem_ctl[2], modem_ctl[3]);
+ cp2101_set_config(port, CP2101_MODEMCTL, modem_ctl, 16);
+ }
+
+}
+
+static int cp2101_tiocmset (struct usb_serial_port *port, struct file *file,
+ unsigned int set, unsigned int clear)
+{
+ int control = 0;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (set & TIOCM_RTS) {
+ control |= CONTROL_RTS;
+ control |= CONTROL_WRITE_RTS;
+ }
+ if (set & TIOCM_DTR) {
+ control |= CONTROL_DTR;
+ control |= CONTROL_WRITE_DTR;
+ }
+ if (clear & TIOCM_RTS) {
+ control &= ~CONTROL_RTS;
+ control |= CONTROL_WRITE_RTS;
+ }
+ if (clear & TIOCM_DTR) {
+ control &= ~CONTROL_DTR;
+ control |= CONTROL_WRITE_DTR;
+ }
+
+ dbg("%s - control = 0x%.4x", __FUNCTION__, control);
+
+ return cp2101_set_config(port, CP2101_CONTROL, &control, 2);
+
+}
+
+static int cp2101_tiocmget (struct usb_serial_port *port, struct file *file)
+{
+ int control, result;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ cp2101_get_config(port, CP2101_CONTROL, &control, 1);
+
+ result = ((control & CONTROL_DTR) ? TIOCM_DTR : 0)
+ |((control & CONTROL_RTS) ? TIOCM_RTS : 0)
+ |((control & CONTROL_CTS) ? TIOCM_CTS : 0)
+ |((control & CONTROL_DSR) ? TIOCM_DSR : 0)
+ |((control & CONTROL_RING)? TIOCM_RI : 0)
+ |((control & CONTROL_DCD) ? TIOCM_CD : 0);
+
+ dbg("%s - control = 0x%.2x", __FUNCTION__, control);
+
+ return result;
+}
+
+static void cp2101_break_ctl (struct usb_serial_port *port, int break_state)
+{
+ int state;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+ if (break_state == 0)
+ state = BREAK_OFF;
+ else
+ state = BREAK_ON;
+ dbg("%s - turning break %s", __FUNCTION__,
+ state==BREAK_OFF ? "off" : "on");
+ cp2101_set_config(port, CP2101_BREAK, &state, 2);
+}
+
+static int cp2101_ioctl (struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg)
+{
+ dbg("%s (%d) cmd = 0x%04x", __FUNCTION__, port->number, cmd);
+
+ switch (cmd) {
+
+#ifndef LINUX26
+ case TIOCMGET:
+ {
+ int result = cp2101_tiocmget(port, file);
+ if (copy_to_user(&arg, &result, sizeof(int)))
+ return -EFAULT;
+ }
+ break;
+
+ case TIOCMSET:
+ case TIOCMBIS:
+
+ case TIOCMBIC:
+ {
+ int val = 0;
+
+ if (copy_from_user(&val, &arg, sizeof(int)))
+ return -EFAULT;
+
+ if(cp2101_tiocmset(port, file, cmd==TIOCMBIC?0:val, cmd==TIOCMBIC?val:0))
+ return -EFAULT;
+ }
+ break;
+#endif
+
+ default:
+ dbg("%s not supported = 0x%04x", __FUNCTION__, cmd);
+ break;
+ }
+
+ return -ENOIOCTLCMD;
+}
+
+static int cp2101_startup (struct usb_serial *serial)
+{
+ /* CP2101 buffers behave strangely unless device is reset */
+ usb_reset_device(serial->dev);
+ return 0;
+}
+
+static void cp2101_shutdown (struct usb_serial *serial)
+{
+ int i;
+
+ dbg("%s", __FUNCTION__);
+
+ /* Stop reads and writes on all ports */
+ for (i=0; i < serial->num_ports; ++i) {
+#ifdef LINUX26
+ cp2101_cleanup(serial->port[i]);
+#else
+ cp2101_cleanup(&serial->port[i]);
+#endif
+ }
+}
+
+static int __init cp2101_init (void)
+{
+ int retval;
+
+ retval = usb_serial_register(&cp2101_device);
+ if (retval)
+ return retval; /* Failed to register */
+
+#ifdef LINUX26
+ retval = usb_register(&cp2101_driver);
+ if (retval) {
+ /* Failed to register */
+ usb_serial_deregister(&cp2101_device);
+ return retval;
+ }
+#endif
+ /* Success */
+ info(DRIVER_DESC " " DRIVER_VERSION);
+ return 0;
+}
+
+static void __exit cp2101_exit (void)
+{
+#ifdef LINUX26
+ usb_deregister (&cp2101_driver);
+#endif
+ usb_serial_deregister (&cp2101_device);
+}
+
+module_init(cp2101_init);
+module_exit(cp2101_exit);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#ifdef LINUX26
+MODULE_VERSION(DRIVER_VERSION);
+module_param(debug, bool, S_IRUGO | S_IWUSR);
+#else
+MODULE_PARM(debug, "i");
+#endif
+MODULE_PARM_DESC(debug, "Enable verbose debugging messages");
projects / cp210x.git / commitdiff