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@@ -1,1409 +0,0 @@
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-/*
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- USB Driver for Sierra Wireless
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-
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- Copyright (C) 2006, 2007, 2008 Kevin Lloyd <[email protected]>,
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-
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- Copyright (C) 2008 - 2011 Elina Pasheva, Matthew Safar, Rory Filer
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- <[email protected]>
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-
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- IMPORTANT DISCLAIMER: This driver is not commercially supported by
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- Sierra Wireless. Use at your own risk.
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-
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- This driver is free software; you can redistribute it and/or modify
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- it under the terms of Version 2 of the GNU General Public License as
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- published by the Free Software Foundation.
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-
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- Portions based on the option driver by Matthias Urlichs <[email protected]>
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- Whom based his on the Keyspan driver by Hugh Blemings <[email protected]>
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-*/
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-/* Uncomment to log function calls */
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-/*#define DEBUG*/
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-/* Uncomment to force power level set to auto when attaching a device */
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-/*#define POWER_LEVEL_AUTO*/
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-
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-/* Sierra driver - kernel 3.0 */
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-#define DRIVER_VERSION "v.1.7.40"
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-#define DRIVER_AUTHOR "Kevin Lloyd, Elina Pasheva, Matthew Safar, Rory Filer"
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-#define DRIVER_DESC "USB Driver for Sierra Wireless USB modems"
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-
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-#include <linux/kernel.h>
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-#include <linux/jiffies.h>
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-#include <linux/errno.h>
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-#include <linux/tty.h>
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-#include <linux/slab.h>
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-#include <linux/tty_flip.h>
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-#include <linux/module.h>
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-#include <linux/usb.h>
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-#include <linux/usb/serial.h>
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-#include <asm/unaligned.h>
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-
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-#define SWIMS_USB_REQUEST_SetPower 0x00
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-#define SWIMS_USB_REQUEST_GetFwAttr 0x06
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-#define SWIMS_USB_REQUEST_SetNmea 0x07
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-#define USB_REQUEST_TYPE_CLASS 0xA1
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-#define USB_REQUEST_IFACE 0x20
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-
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-#define N_IN_URB_HM 8
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-#define N_OUT_URB_HM 64
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-#define N_IN_URB 4
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-#define N_OUT_URB 4
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-#define IN_BUFLEN 4096
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-
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-#define MAX_TRANSFER (PAGE_SIZE - 512)
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-/* MAX_TRANSFER is chosen so that the VM is not stressed by
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- allocations > PAGE_SIZE and the number of packets in a page
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- is an integer 512 is the largest possible packet on EHCI */
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-
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-#define SWI_FW_ATTR_PM_MASK 0x02
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-/* PORTION_LEN defines the length of device attribute buffer */
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-#define PORTION_LEN 4096
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-
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-static int debug;
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-static int nmea;
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-
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-/* sysfs attributes */
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-static int sierra_create_sysfs_attrs(struct usb_serial_port *port);
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-static int sierra_remove_sysfs_attrs(struct usb_serial_port *port);
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-
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-/* Used in interface blacklisting */
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-struct sierra_iface_info {
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- const u32 infolen; /* number of interface numbers on blacklist */
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- const u8 *ifaceinfo; /* pointer to the array holding the numbers */
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-};
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-
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-/* per interface statistics */
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-struct sierra_intf_stats {
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- atomic_t rx_bytes; /* received bytes */
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- atomic_t indat_cb_cnt; /* indat callback count */
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- atomic_t indat_cb_fail; /* indat cb with error */
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-
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- atomic_t tx_bytes; /* transmitted bytes */
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- atomic_t write_cnt; /* no. of writes */
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- atomic_t write_err; /* no. of failed writes */
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-
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- atomic_t delayed_writes; /* no. of delayed writes */
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- atomic_t delayed_write_err; /* no. of delayed write errs */
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-
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- atomic_t outdat_cb_cnt; /* outdat callback count */
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- atomic_t outdat_cb_fail; /* outdat cb with error */
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-
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-};
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-
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-struct sierra_intf_private {
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- spinlock_t susp_lock;
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- unsigned int suspended:1;
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- int in_flight;
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-
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- struct sierra_intf_stats stats;
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-};
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-
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-static int sierra_set_power_state(struct usb_device *udev, __u16 swiState)
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-{
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- int result;
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- dev_dbg(&udev->dev, "%s\n", __func__);
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- result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
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- SWIMS_USB_REQUEST_SetPower, /* __u8 request */
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- USB_TYPE_VENDOR, /* __u8 request type */
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- swiState, /* __u16 value */
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- 0, /* __u16 index */
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- NULL, /* void *data */
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- 0, /* __u16 size */
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- USB_CTRL_SET_TIMEOUT); /* int timeout */
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- return result;
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-}
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-
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-static int sierra_vsc_set_nmea(struct usb_device *udev, __u16 enable)
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-{
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- int result;
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- dev_dbg(&udev->dev, "%s\n", __func__);
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- result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
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- SWIMS_USB_REQUEST_SetNmea, /* __u8 request */
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- USB_TYPE_VENDOR, /* __u8 request type */
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- enable, /* __u16 value */
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- 0x0000, /* __u16 index */
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- NULL, /* void *data */
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- 0, /* __u16 size */
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- USB_CTRL_SET_TIMEOUT); /* int timeout */
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- return result;
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-}
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-
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-static int sierra_get_fw_attr(struct usb_device *udev, u16 *data)
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-{
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- int result;
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- u16 *attrdata;
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-
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- dev_dbg(&udev->dev, "%s\n", __func__);
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-
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- attrdata = kmalloc(sizeof(*attrdata), GFP_KERNEL);
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- if (!attrdata)
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- return -ENOMEM;
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-
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- result = usb_control_msg(udev,
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- usb_rcvctrlpipe(udev, 0),
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- SWIMS_USB_REQUEST_GetFwAttr, /* __u8 request*/
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- USB_TYPE_VENDOR | USB_DIR_IN, /* request type*/
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- 0x0000, /* __u16 value */
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- 0x0000, /* __u16 index */
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- attrdata, /* void *data */
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- sizeof(*attrdata), /* _u16 size */
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- USB_CTRL_SET_TIMEOUT); /* in timeout */
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-
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- if (result < 0) {
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- kfree(attrdata);
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- return -EIO;
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- }
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-
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- *data = *attrdata;
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-
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- kfree(attrdata);
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- return result;
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-}
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-
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-static int sierra_calc_num_ports(struct usb_serial *serial)
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-{
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- int num_ports = 0;
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- u8 ifnum, numendpoints;
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-
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- dev_dbg(&serial->dev->dev, "%s\n", __func__);
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-
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- ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
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- numendpoints = serial->interface->cur_altsetting->desc.bNumEndpoints;
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-
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- /* Dummy interface present on some SKUs should be ignored */
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- if (ifnum == 0x99)
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- num_ports = 0;
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- else if (numendpoints <= 3)
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- num_ports = 1;
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- else
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- num_ports = (numendpoints-1)/2;
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- return num_ports;
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-}
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-
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-static int is_blacklisted(const u8 ifnum,
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- const struct sierra_iface_info *blacklist)
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-{
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- const u8 *info;
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- int i;
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-
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- if (blacklist) {
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- info = blacklist->ifaceinfo;
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-
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- for (i = 0; i < blacklist->infolen; i++) {
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- if (info[i] == ifnum)
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- return 1;
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- }
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- }
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- return 0;
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-}
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-
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-static int is_himemory(const u8 ifnum,
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- const struct sierra_iface_info *himemorylist)
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-{
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- const u8 *info;
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- int i;
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-
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- if (himemorylist) {
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- info = himemorylist->ifaceinfo;
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-
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- for (i=0; i < himemorylist->infolen; i++) {
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- if (info[i] == ifnum)
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- return 1;
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- }
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- }
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- return 0;
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-}
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-
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-static int sierra_calc_interface(struct usb_serial *serial)
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-{
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- int interface;
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- struct usb_interface *p_interface;
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- struct usb_host_interface *p_host_interface;
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-
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- /* Get the interface structure pointer from the serial struct */
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- p_interface = serial->interface;
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-
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- /* Get a pointer to the host interface structure */
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- p_host_interface = p_interface->cur_altsetting;
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-
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- /* read the interface descriptor for this active altsetting
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- * to find out the interface number we are on */
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- interface = p_host_interface->desc.bInterfaceNumber;
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-
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- return interface;
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-}
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-
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-static int sierra_probe(struct usb_serial *serial,
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- const struct usb_device_id *id)
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-{
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- int result = 0;
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- struct usb_device *udev;
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- struct sierra_intf_private *intfdata;
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- u8 ifnum;
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-
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- udev = serial->dev;
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- dev_dbg(&udev->dev, "%s\n", __func__);
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-
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- ifnum = sierra_calc_interface(serial);
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- /*
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- * If this interface supports more than 1 alternate
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- * select the 2nd one
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- */
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- if (serial->interface->num_altsetting == 2) {
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- dev_dbg(&udev->dev, "Selecting alt setting for interface %d\n",
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- ifnum);
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- /* We know the alternate setting is for composite USB interface
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- * modems
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- */
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- usb_set_interface(udev, ifnum, 1);
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- }
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-
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- /* ifnum could have changed - by calling usb_set_interface */
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- ifnum = sierra_calc_interface(serial);
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-
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- if (is_blacklisted(ifnum,
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- (struct sierra_iface_info *)id->driver_info)) {
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- dev_dbg(&serial->dev->dev,
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- "Ignoring blacklisted interface #%d\n", ifnum);
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- return -ENODEV;
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- }
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-
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- intfdata = serial->private = kzalloc(sizeof(struct sierra_intf_private),
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- GFP_KERNEL);
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- if (!intfdata)
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- return -ENOMEM;
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- spin_lock_init(&intfdata->susp_lock);
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-
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- return result;
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-}
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-
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-/* interfaces with higher memory requirements */
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-static const u8 hi_memory_typeA_ifaces[] = { 0, 2 };
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-static const struct sierra_iface_info typeA_interface_list = {
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- .infolen = ARRAY_SIZE(hi_memory_typeA_ifaces),
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- .ifaceinfo = hi_memory_typeA_ifaces,
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-};
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-
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-static const u8 hi_memory_typeB_ifaces[] = { 3, 4, 5, 6 };
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-static const struct sierra_iface_info typeB_interface_list = {
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- .infolen = ARRAY_SIZE(hi_memory_typeB_ifaces),
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- .ifaceinfo = hi_memory_typeB_ifaces,
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-};
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-
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-/* 'blacklist' of interfaces not served by this driver */
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-static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11 };
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-static const struct sierra_iface_info direct_ip_interface_blacklist = {
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- .infolen = ARRAY_SIZE( direct_ip_non_serial_ifaces ),
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- .ifaceinfo = direct_ip_non_serial_ifaces,
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-};
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-
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-static const struct usb_device_id id_table [] = {
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- { USB_DEVICE(0x0F3D, 0x0112) }, /* Airprime/Sierra PC 5220 */
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- { USB_DEVICE(0x03F0, 0x1B1D) }, /* HP ev2200 a.k.a MC5720 */
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- { USB_DEVICE(0x03F0, 0x1E1D) }, /* HP hs2300 a.k.a MC8775 */
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- { USB_DEVICE(0x03F0, 0x211D) }, /* HP ev2210 a.k.a MC5725 */
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-
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- { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
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- { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
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- { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
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- { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
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- { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */
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- { USB_DEVICE(0x1199, 0x0022) }, /* Sierra Wireless EM5725 */
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- { USB_DEVICE(0x1199, 0x0024) }, /* Sierra Wireless MC5727 */
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- { USB_DEVICE(0x1199, 0x0224) }, /* Sierra Wireless MC5727 */
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- { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
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- { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
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- { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
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- { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */
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- { USB_DEVICE(0x1199, 0x0301) }, /* Sierra Wireless USB Dongle 250U/3G */
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- /* Sierra Wireless MC5728 */
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- { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0400, 0xFF, 0xFF, 0xFF) },
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-
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- /* Sierra Wireless C597 */
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- { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0023, 0xFF, 0xFF, 0xFF) },
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- /* Sierra Wireless T598 */
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- { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x0025, 0xFF, 0xFF, 0xFF) },
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- { USB_DEVICE(0x1199, 0x0026) }, /* Sierra Wireless T11 */
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- { USB_DEVICE(0x1199, 0x0027) }, /* Sierra Wireless AC402 */
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- { USB_DEVICE(0x1199, 0x0028) }, /* Sierra Wireless MC5728 */
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- { USB_DEVICE(0x114F, 0x6000) }, /* Sierra Wireless Q26 Elite */
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-
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- { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
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- { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
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- { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
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- { USB_DEVICE(0x1199, 0x6805) }, /* Sierra Wireless MC8765 */
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- { USB_DEVICE(0x1199, 0x6808) }, /* Sierra Wireless MC8755 */
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- { USB_DEVICE(0x1199, 0x6809) }, /* Sierra Wireless MC8765 */
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- { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */
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- { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 */
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- { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */
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- { USB_DEVICE(0x1199, 0x6816) }, /* Sierra Wireless MC8775 */
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- { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
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- { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */
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- { USB_DEVICE(0x1199, 0x6822) }, /* Sierra Wireless AirCard 875E */
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- { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780 */
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- { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781 */
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- { USB_DEVICE(0x1199, 0x6834) }, /* Sierra Wireless MC8780 */
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- { USB_DEVICE(0x1199, 0x6835) }, /* Sierra Wireless MC8781 */
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- { USB_DEVICE(0x1199, 0x6838) }, /* Sierra Wireless MC8780 */
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- { USB_DEVICE(0x1199, 0x6839) }, /* Sierra Wireless MC8781 */
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- { USB_DEVICE(0x1199, 0x683A) }, /* Sierra Wireless MC8785 */
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- { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite */
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- /* Sierra Wireless MC8790, MC8791, MC8792 Composite */
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- { USB_DEVICE(0x1199, 0x683C) },
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- { USB_DEVICE(0x1199, 0x683D) }, /* Sierra Wireless MC8791 Composite */
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- /* Sierra Wireless MC8790, MC8791, MC8792 */
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- { USB_DEVICE(0x1199, 0x683E) },
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- { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */
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- { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */
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- { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */
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- { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */
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- { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */
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- { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */
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- { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */
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|
|
- { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */
|
|
|
- /* Sierra Wireless C885 */
|
|
|
- { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)},
|
|
|
- /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */
|
|
|
- { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6890, 0xFF, 0xFF, 0xFF)},
|
|
|
- /* Sierra Wireless C22/C33 */
|
|
|
- { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6891, 0xFF, 0xFF, 0xFF)},
|
|
|
- /* Sierra Wireless HSPA Non-Composite Device */
|
|
|
- { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)},
|
|
|
- { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */
|
|
|
- /* Sierra Wireless Direct IP modems */
|
|
|
- { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x68A3, 0xFF, 0xFF, 0xFF),
|
|
|
- .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
|
|
|
- },
|
|
|
- /* AT&T Direct IP modems */
|
|
|
- { USB_DEVICE_AND_INTERFACE_INFO(0x0F3D, 0x68A3, 0xFF, 0xFF, 0xFF),
|
|
|
- .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
|
|
|
- },
|
|
|
- /* Sierra Wireless Direct IP LTE modems */
|
|
|
- { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x68AA, 0xFF, 0xFF, 0xFF),
|
|
|
- .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
|
|
|
- },
|
|
|
- /* AT&T Direct IP LTE modems */
|
|
|
- { USB_DEVICE_AND_INTERFACE_INFO(0x0F3D, 0x68AA, 0xFF, 0xFF, 0xFF),
|
|
|
- .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
|
|
|
- },
|
|
|
- /* Wireless 5720 VZW Mobile Broadband (EVDO Rev-A) Minicard GPS Port */
|
|
|
- { USB_DEVICE(0x413C, 0x8133) },
|
|
|
-
|
|
|
- { }
|
|
|
-};
|
|
|
-MODULE_DEVICE_TABLE(usb, id_table);
|
|
|
-
|
|
|
-/* per port private data */
|
|
|
-struct sierra_port_private {
|
|
|
- spinlock_t lock; /* lock the structure */
|
|
|
- int outstanding_urbs; /* number of out urbs in flight */
|
|
|
-
|
|
|
- struct usb_anchor active;
|
|
|
- struct usb_anchor delayed;
|
|
|
-
|
|
|
- int num_out_urbs;
|
|
|
- int num_in_urbs;
|
|
|
- /* Input endpoints and buffers for this port */
|
|
|
- struct urb *in_urbs[N_IN_URB_HM];
|
|
|
-
|
|
|
- /* Settings for the port */
|
|
|
- int rts_state; /* Handshaking pins (outputs) */
|
|
|
- int dtr_state;
|
|
|
- int cts_state; /* Handshaking pins (inputs) */
|
|
|
- int dsr_state;
|
|
|
- int dcd_state;
|
|
|
- int ri_state;
|
|
|
- unsigned int opened:1;
|
|
|
-};
|
|
|
-
|
|
|
-static int sierra_send_setup(struct usb_serial_port *port)
|
|
|
-{
|
|
|
- struct usb_serial *serial = port->serial;
|
|
|
- struct sierra_port_private *portdata = usb_get_serial_port_data(port);
|
|
|
- __u16 interface = 0;
|
|
|
- int val = 0;
|
|
|
- int do_send = 0;
|
|
|
- int retval;
|
|
|
-
|
|
|
- dev_dbg(&port->dev, "%s\n", __func__);
|
|
|
-
|
|
|
- if (portdata->dtr_state)
|
|
|
- val |= 0x01;
|
|
|
- if (portdata->rts_state)
|
|
|
- val |= 0x02;
|
|
|
-
|
|
|
- /* If composite device then properly report interface */
|
|
|
- if (serial->num_ports == 1) {
|
|
|
- interface = sierra_calc_interface(serial);
|
|
|
- /* Control message is sent only to interfaces with
|
|
|
- * interrupt_in endpoints
|
|
|
- */
|
|
|
- if (port->interrupt_in_urb) {
|
|
|
- /* send control message */
|
|
|
- do_send = 1;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- /* Otherwise the need to do non-composite mapping */
|
|
|
- else {
|
|
|
- if (port->bulk_out_endpointAddress == 2)
|
|
|
- interface = 0;
|
|
|
- else if (port->bulk_out_endpointAddress == 4)
|
|
|
- interface = 1;
|
|
|
- else if (port->bulk_out_endpointAddress == 5)
|
|
|
- interface = 2;
|
|
|
-
|
|
|
- do_send = 1;
|
|
|
- }
|
|
|
- if (!do_send)
|
|
|
- return 0;
|
|
|
-
|
|
|
- usb_autopm_get_interface(serial->interface);
|
|
|
- retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
|
|
|
- 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT);
|
|
|
- usb_autopm_put_interface(serial->interface);
|
|
|
-
|
|
|
- return retval;
|
|
|
-}
|
|
|
-
|
|
|
-static void sierra_set_termios(struct tty_struct *tty,
|
|
|
- struct usb_serial_port *port, struct ktermios *old_termios)
|
|
|
-{
|
|
|
- dev_dbg(&port->dev, "%s\n", __func__);
|
|
|
- tty_termios_copy_hw(tty->termios, old_termios);
|
|
|
- sierra_send_setup(port);
|
|
|
-}
|
|
|
-
|
|
|
-static int sierra_tiocmget(struct tty_struct *tty)
|
|
|
-{
|
|
|
- struct usb_serial_port *port = tty->driver_data;
|
|
|
- unsigned int value;
|
|
|
- struct sierra_port_private *portdata;
|
|
|
-
|
|
|
- dev_dbg(&port->dev, "%s\n", __func__);
|
|
|
- portdata = usb_get_serial_port_data(port);
|
|
|
-
|
|
|
- value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
|
|
|
- ((portdata->dtr_state) ? TIOCM_DTR : 0) |
|
|
|
- ((portdata->cts_state) ? TIOCM_CTS : 0) |
|
|
|
- ((portdata->dsr_state) ? TIOCM_DSR : 0) |
|
|
|
- ((portdata->dcd_state) ? TIOCM_CAR : 0) |
|
|
|
- ((portdata->ri_state) ? TIOCM_RNG : 0);
|
|
|
-
|
|
|
- return value;
|
|
|
-}
|
|
|
-
|
|
|
-static int sierra_tiocmset(struct tty_struct *tty,
|
|
|
- unsigned int set, unsigned int clear)
|
|
|
-{
|
|
|
- struct usb_serial_port *port = tty->driver_data;
|
|
|
- struct sierra_port_private *portdata;
|
|
|
-
|
|
|
- portdata = usb_get_serial_port_data(port);
|
|
|
-
|
|
|
- if (set & TIOCM_RTS)
|
|
|
- portdata->rts_state = 1;
|
|
|
- if (set & TIOCM_DTR)
|
|
|
- portdata->dtr_state = 1;
|
|
|
-
|
|
|
- if (clear & TIOCM_RTS)
|
|
|
- portdata->rts_state = 0;
|
|
|
- if (clear & TIOCM_DTR)
|
|
|
- portdata->dtr_state = 0;
|
|
|
- return sierra_send_setup(port);
|
|
|
-}
|
|
|
-
|
|
|
-static void sierra_release_urb(struct urb *urb)
|
|
|
-{
|
|
|
- struct usb_serial_port *port;
|
|
|
- if (urb) {
|
|
|
- port = urb->context;
|
|
|
- dev_dbg(&port->dev, "%s: %p\n", __func__, urb);
|
|
|
- usb_free_urb(urb);
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-/* Sysfs Attributes */
|
|
|
-
|
|
|
-static ssize_t show_suspend_status(struct device *dev,
|
|
|
- struct device_attribute *attr, char *buf)
|
|
|
-{
|
|
|
- struct usb_serial_port *port;
|
|
|
- struct sierra_port_private *portdata;
|
|
|
- struct sierra_intf_private *intfdata;
|
|
|
- unsigned long flags;
|
|
|
- unsigned int flag_suspended = 0;
|
|
|
-
|
|
|
- port = to_usb_serial_port(dev);
|
|
|
- portdata = usb_get_serial_port_data(port);
|
|
|
- intfdata = port->serial->private;
|
|
|
-
|
|
|
- spin_lock_irqsave(&intfdata->susp_lock, flags);
|
|
|
- flag_suspended = intfdata->suspended;
|
|
|
- spin_unlock_irqrestore(&intfdata->susp_lock, flags);
|
|
|
-
|
|
|
- return snprintf(buf, PORTION_LEN, "%i\n", flag_suspended);
|
|
|
-}
|
|
|
-
|
|
|
-static ssize_t show_stats(struct device *dev,
|
|
|
- struct device_attribute *attr, char *buf)
|
|
|
-{
|
|
|
- struct usb_serial_port *port;
|
|
|
- struct sierra_intf_private *intfdata;
|
|
|
-
|
|
|
- port = to_usb_serial_port(dev);
|
|
|
- intfdata = port->serial->private;
|
|
|
-
|
|
|
- return snprintf(buf, PORTION_LEN,
|
|
|
- "rx: %i B\tindat: %i\tindat err: %i\n"
|
|
|
- "tx: %i B\toutdat: %i\toutdat err: %i\n"
|
|
|
- "writes: %i\t\twrite err: %i\n"
|
|
|
- "delayed writes: %i\tdelayed write err: %i\n",
|
|
|
- atomic_read(&intfdata->stats.rx_bytes), atomic_read(&intfdata->stats.indat_cb_cnt), atomic_read(&intfdata->stats.indat_cb_fail),
|
|
|
- atomic_read(&intfdata->stats.tx_bytes), atomic_read(&intfdata->stats.outdat_cb_cnt), atomic_read(&intfdata->stats.outdat_cb_fail),
|
|
|
- atomic_read(&intfdata->stats.write_cnt), atomic_read(&intfdata->stats.write_err),
|
|
|
- atomic_read(&intfdata->stats.delayed_writes), atomic_read(&intfdata->stats.delayed_write_err)
|
|
|
- );
|
|
|
-}
|
|
|
-
|
|
|
-/* Read only suspend status */
|
|
|
-static DEVICE_ATTR(suspend_status, S_IWUSR | S_IRUGO, show_suspend_status,
|
|
|
- NULL);
|
|
|
-
|
|
|
-/* Read only statistics */
|
|
|
-static DEVICE_ATTR(stats, S_IWUSR | S_IRUGO, show_stats, NULL);
|
|
|
-
|
|
|
-static int sierra_create_sysfs_attrs(struct usb_serial_port *port)
|
|
|
-{
|
|
|
- int result = 0;
|
|
|
-
|
|
|
- result = device_create_file(&port->dev, &dev_attr_stats);
|
|
|
- if (unlikely (result < 0))
|
|
|
- return result;
|
|
|
- return device_create_file(&port->dev, &dev_attr_suspend_status);
|
|
|
-}
|
|
|
-
|
|
|
-static int sierra_remove_sysfs_attrs(struct usb_serial_port *port)
|
|
|
-{
|
|
|
- device_remove_file(&port->dev, &dev_attr_stats);
|
|
|
- device_remove_file(&port->dev, &dev_attr_suspend_status);
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static void sierra_outdat_callback(struct urb *urb)
|
|
|
-{
|
|
|
- struct usb_serial_port *port = urb->context;
|
|
|
- struct sierra_port_private *portdata = usb_get_serial_port_data(port);
|
|
|
- struct sierra_intf_private *intfdata;
|
|
|
- int status = urb->status;
|
|
|
-
|
|
|
- dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number);
|
|
|
- intfdata = port->serial->private;
|
|
|
-
|
|
|
- usb_autopm_put_interface_async(port->serial->interface);
|
|
|
-
|
|
|
- atomic_inc(&intfdata->stats.outdat_cb_cnt);
|
|
|
-
|
|
|
- if (status) {
|
|
|
- dev_dbg(&port->dev, "%s - nonzero write bulk status "
|
|
|
- "received: %d\n", __func__, status);
|
|
|
- atomic_inc(&intfdata->stats.outdat_cb_fail);
|
|
|
- }
|
|
|
-
|
|
|
- spin_lock(&portdata->lock);
|
|
|
- --portdata->outstanding_urbs;
|
|
|
- spin_unlock(&portdata->lock);
|
|
|
-
|
|
|
- spin_lock(&intfdata->susp_lock);
|
|
|
- --intfdata->in_flight;
|
|
|
- spin_unlock(&intfdata->susp_lock);
|
|
|
-
|
|
|
- usb_serial_port_softint(port);
|
|
|
-}
|
|
|
-
|
|
|
-/* Write */
|
|
|
-static int sierra_write(struct tty_struct *tty,
|
|
|
- struct usb_serial_port *port,
|
|
|
- const unsigned char *buf, int count)
|
|
|
-{
|
|
|
- struct sierra_port_private *portdata = usb_get_serial_port_data(port);
|
|
|
- struct sierra_intf_private *intfdata;
|
|
|
- struct usb_serial *serial = port->serial;
|
|
|
- unsigned long flags;
|
|
|
- unsigned char *buffer;
|
|
|
- struct urb *urb;
|
|
|
- size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER);
|
|
|
- int retval = 0;
|
|
|
-
|
|
|
- /* verify that we actually have some data to write */
|
|
|
- if (count == 0)
|
|
|
- return 0;
|
|
|
-
|
|
|
- dev_dbg(&port->dev, "%s: write (%zu bytes)\n", __func__, writesize);
|
|
|
-
|
|
|
- intfdata = serial->private;
|
|
|
-
|
|
|
- spin_lock_irqsave(&portdata->lock, flags);
|
|
|
- if (portdata->outstanding_urbs > portdata->num_out_urbs) {
|
|
|
- spin_unlock_irqrestore(&portdata->lock, flags);
|
|
|
- dev_dbg(&port->dev, "%s - write limit hit\n", __func__);
|
|
|
- return 0;
|
|
|
- }
|
|
|
- portdata->outstanding_urbs++;
|
|
|
- spin_unlock_irqrestore(&portdata->lock, flags);
|
|
|
-
|
|
|
- retval = usb_autopm_get_interface_async(serial->interface);
|
|
|
- if (unlikely(retval < 0)) {
|
|
|
- spin_lock_irqsave(&portdata->lock, flags);
|
|
|
- portdata->outstanding_urbs--;
|
|
|
- spin_unlock_irqrestore(&portdata->lock, flags);
|
|
|
- return retval;
|
|
|
- }
|
|
|
-
|
|
|
- buffer = kmalloc(writesize, GFP_ATOMIC);
|
|
|
- if (!buffer) {
|
|
|
- dev_err(&port->dev, "out of memory\n");
|
|
|
- spin_lock_irqsave(&portdata->lock, flags);
|
|
|
- --portdata->outstanding_urbs;
|
|
|
- spin_unlock_irqrestore(&portdata->lock, flags);
|
|
|
- usb_autopm_put_interface_async(serial->interface);
|
|
|
- return -ENOMEM;
|
|
|
- }
|
|
|
-
|
|
|
- urb = usb_alloc_urb(0, GFP_ATOMIC);
|
|
|
- if (!urb) {
|
|
|
- dev_err(&port->dev, "no more free urbs\n");
|
|
|
- kfree(buffer);
|
|
|
- spin_lock_irqsave(&portdata->lock, flags);
|
|
|
- --portdata->outstanding_urbs;
|
|
|
- spin_unlock_irqrestore(&portdata->lock, flags);
|
|
|
- usb_autopm_put_interface_async(serial->interface);
|
|
|
- return -ENOMEM;
|
|
|
- }
|
|
|
-
|
|
|
- memcpy(buffer, buf, writesize);
|
|
|
-
|
|
|
- usb_serial_debug_data(debug, &port->dev, __func__, writesize, buffer);
|
|
|
-
|
|
|
- usb_fill_bulk_urb(urb, serial->dev,
|
|
|
- usb_sndbulkpipe(serial->dev,
|
|
|
- port->bulk_out_endpointAddress),
|
|
|
- buffer, writesize, sierra_outdat_callback, port);
|
|
|
-
|
|
|
- /* Handle the need to send a zero length packet and release the
|
|
|
- * transfer buffer
|
|
|
- */
|
|
|
- urb->transfer_flags |= (URB_ZERO_PACKET | URB_FREE_BUFFER);
|
|
|
-
|
|
|
- spin_lock_irqsave(&intfdata->susp_lock, flags);
|
|
|
-
|
|
|
- if (intfdata->suspended) {
|
|
|
- usb_anchor_urb(urb, &portdata->delayed);
|
|
|
- spin_unlock_irqrestore(&intfdata->susp_lock, flags);
|
|
|
- /* release our reference to this urb, the USB core will
|
|
|
- * eventually free it entirely */
|
|
|
- usb_free_urb(urb);
|
|
|
- return writesize;
|
|
|
- }
|
|
|
- usb_anchor_urb(urb, &portdata->active);
|
|
|
-
|
|
|
- /* send it down the pipe */
|
|
|
- retval = usb_submit_urb(urb, GFP_ATOMIC);
|
|
|
- if (retval) {
|
|
|
- usb_unanchor_urb(urb);
|
|
|
- spin_unlock_irqrestore(&intfdata->susp_lock, flags);
|
|
|
-
|
|
|
- dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed "
|
|
|
- "with status = %d\n", __func__, retval);
|
|
|
- usb_free_urb(urb);
|
|
|
- spin_lock_irqsave(&portdata->lock, flags);
|
|
|
- --portdata->outstanding_urbs;
|
|
|
- spin_unlock_irqrestore(&portdata->lock, flags);
|
|
|
- usb_autopm_put_interface_async(serial->interface);
|
|
|
- atomic_inc(&intfdata->stats.write_err);
|
|
|
- return retval;
|
|
|
- } else {
|
|
|
- intfdata->in_flight++;
|
|
|
- spin_unlock_irqrestore(&intfdata->susp_lock, flags);
|
|
|
- atomic_inc(&intfdata->stats.write_cnt);
|
|
|
- atomic_add(writesize, &intfdata->stats.tx_bytes);
|
|
|
- }
|
|
|
- /* release our reference to this urb, the USB core will eventually
|
|
|
- * free it entirely */
|
|
|
- usb_free_urb(urb);
|
|
|
-
|
|
|
- return writesize;
|
|
|
-}
|
|
|
-
|
|
|
-static void sierra_indat_callback(struct urb *urb)
|
|
|
-{
|
|
|
- int err;
|
|
|
- int endpoint;
|
|
|
- struct usb_serial_port *port = urb->context;
|
|
|
- struct tty_struct *tty;
|
|
|
- struct sierra_intf_private *intfdata;
|
|
|
- unsigned char *data = urb->transfer_buffer;
|
|
|
- int status = urb->status;
|
|
|
-
|
|
|
- endpoint = usb_pipeendpoint(urb->pipe);
|
|
|
-
|
|
|
- dev_dbg(&port->dev, "%s: %p\n", __func__, urb);
|
|
|
-
|
|
|
- intfdata = port->serial->private;
|
|
|
-
|
|
|
- atomic_inc(&intfdata->stats.indat_cb_cnt); /* indat calls */
|
|
|
-
|
|
|
- if (status) {
|
|
|
- dev_dbg(&port->dev, "%s: nonzero status: %d on"
|
|
|
- " endpoint %02x\n", __func__, status, endpoint);
|
|
|
- atomic_inc(&intfdata->stats.indat_cb_fail); /* indat fails */
|
|
|
- } else {
|
|
|
- if (urb->actual_length) {
|
|
|
- tty = tty_port_tty_get(&port->port);
|
|
|
- if (tty) {
|
|
|
- tty_insert_flip_string(tty, data,
|
|
|
- urb->actual_length);
|
|
|
- tty_flip_buffer_push(tty);
|
|
|
-
|
|
|
- tty_kref_put(tty);
|
|
|
- /* tty invalid after this point */
|
|
|
- /* rx'd bytes */
|
|
|
- atomic_add(urb->actual_length,
|
|
|
- &intfdata->stats.rx_bytes);
|
|
|
- usb_serial_debug_data(debug, &port->dev,
|
|
|
- __func__, urb->actual_length, data);
|
|
|
- }
|
|
|
- } else {
|
|
|
- dev_dbg(&port->dev, "%s: empty read urb"
|
|
|
- " received\n", __func__);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- /* Resubmit urb so we continue receiving */
|
|
|
- if (status != -ESHUTDOWN && status != -ENOENT && status != -ENODEV) {
|
|
|
- usb_mark_last_busy(port->serial->dev);
|
|
|
- err = usb_submit_urb(urb, GFP_ATOMIC);
|
|
|
- if (err && err != -ENODEV)
|
|
|
- dev_err(&port->dev, "resubmit read urb failed."
|
|
|
- "(%d)\n", err);
|
|
|
- }
|
|
|
-
|
|
|
- return;
|
|
|
-}
|
|
|
-
|
|
|
-static void sierra_instat_callback(struct urb *urb)
|
|
|
-{
|
|
|
- int err;
|
|
|
- int status = urb->status;
|
|
|
- struct usb_serial_port *port = urb->context;
|
|
|
- struct sierra_port_private *portdata = usb_get_serial_port_data(port);
|
|
|
- struct usb_serial *serial = port->serial;
|
|
|
-
|
|
|
- dev_dbg(&port->dev, "%s: %p\n", __func__, urb);
|
|
|
-
|
|
|
- if (status == 0) {
|
|
|
- struct usb_ctrlrequest *req_pkt =
|
|
|
- (struct usb_ctrlrequest *)urb->transfer_buffer;
|
|
|
-
|
|
|
- const u16 *sigp = (u16 *)(req_pkt + 1);
|
|
|
- /* usb_ctrlrequest we parsed is followed by two bytes of data
|
|
|
- * make sure we received that many bytes
|
|
|
- */
|
|
|
- if (urb->actual_length >= sizeof(*req_pkt) + sizeof(*sigp) &&
|
|
|
- req_pkt->bRequestType == USB_REQUEST_TYPE_CLASS &&
|
|
|
- req_pkt->bRequest == USB_REQUEST_IFACE) {
|
|
|
- int old_dcd_state;
|
|
|
- const u16 signals = get_unaligned_le16(sigp);
|
|
|
- struct tty_struct *tty;
|
|
|
-
|
|
|
- dev_dbg(&port->dev, "%s: signal 0x%x\n", __func__,
|
|
|
- signals);
|
|
|
-
|
|
|
- old_dcd_state = portdata->dcd_state;
|
|
|
- /* Note: CTS from modem is in reverse logic! */
|
|
|
- portdata->cts_state = ((signals & 0x100) ? 0 : 1);
|
|
|
- portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
|
|
|
- portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
|
|
|
- portdata->ri_state = ((signals & 0x08) ? 1 : 0);
|
|
|
-
|
|
|
- tty = tty_port_tty_get(&port->port);
|
|
|
- if (tty && !C_CLOCAL(tty) &&
|
|
|
- old_dcd_state && !portdata->dcd_state)
|
|
|
- tty_hangup(tty);
|
|
|
- tty_kref_put(tty);
|
|
|
- } else {
|
|
|
- /* dump the data we don't understand to log */
|
|
|
- usb_serial_debug_data(1, &port->dev, __func__,
|
|
|
- urb->actual_length, urb->transfer_buffer);
|
|
|
- }
|
|
|
- } else
|
|
|
- dev_dbg(&port->dev, "%s: error %d\n", __func__, status);
|
|
|
-
|
|
|
- /* Resubmit urb so we continue receiving IRQ data */
|
|
|
- if (status != -ESHUTDOWN && status != -ENOENT && status != -ENODEV) {
|
|
|
- usb_mark_last_busy(serial->dev);
|
|
|
- urb->dev = serial->dev;
|
|
|
- err = usb_submit_urb(urb, GFP_ATOMIC);
|
|
|
- if (err && err != -ENODEV)
|
|
|
- dev_err(&port->dev, "%s: resubmit intr urb "
|
|
|
- "failed. (%d)\n", __func__, err);
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-static int sierra_write_room(struct tty_struct *tty)
|
|
|
-{
|
|
|
- struct usb_serial_port *port = tty->driver_data;
|
|
|
- struct sierra_port_private *portdata = usb_get_serial_port_data(port);
|
|
|
- unsigned long flags;
|
|
|
- int retval;
|
|
|
-
|
|
|
- dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number);
|
|
|
-
|
|
|
- /* try to give a good number back based on if we have any free urbs at
|
|
|
- * this point in time */
|
|
|
- retval = MAX_TRANSFER;
|
|
|
-
|
|
|
- spin_lock_irqsave(&portdata->lock, flags);
|
|
|
- if (portdata->outstanding_urbs >= portdata->num_out_urbs) {
|
|
|
- retval = 0;
|
|
|
- }
|
|
|
- spin_unlock_irqrestore(&portdata->lock, flags);
|
|
|
-
|
|
|
- return retval;
|
|
|
-}
|
|
|
-
|
|
|
-static void sierra_stop_rx_urbs(struct usb_serial_port *port)
|
|
|
-{
|
|
|
- int i;
|
|
|
- struct sierra_port_private *portdata = usb_get_serial_port_data(port);
|
|
|
-
|
|
|
- for (i = 0; i < portdata->num_in_urbs; i++)
|
|
|
- usb_kill_urb(portdata->in_urbs[i]);
|
|
|
-
|
|
|
- usb_kill_urb(port->interrupt_in_urb);
|
|
|
-}
|
|
|
-
|
|
|
-static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags)
|
|
|
-{
|
|
|
- int ok_cnt;
|
|
|
- int err = -EINVAL;
|
|
|
- int i;
|
|
|
- struct urb *urb;
|
|
|
- struct sierra_port_private *portdata = usb_get_serial_port_data(port);
|
|
|
-
|
|
|
- ok_cnt = 0;
|
|
|
- for (i = 0; i < portdata->num_in_urbs; i++) {
|
|
|
- urb = portdata->in_urbs[i];
|
|
|
- if (!urb)
|
|
|
- continue;
|
|
|
- urb->transfer_flags |= URB_FREE_BUFFER;
|
|
|
- err = usb_submit_urb(urb, mem_flags);
|
|
|
- if (err) {
|
|
|
- dev_err(&port->dev, "%s: submit urb failed: %d\n",
|
|
|
- __func__, err);
|
|
|
- } else {
|
|
|
- ok_cnt++;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if (ok_cnt && port->interrupt_in_urb) {
|
|
|
- err = usb_submit_urb(port->interrupt_in_urb, mem_flags);
|
|
|
- if (err) {
|
|
|
- dev_err(&port->dev, "%s: submit intr urb failed: %d\n",
|
|
|
- __func__, err);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if (ok_cnt > 0) /* at least one rx urb submitted */
|
|
|
- return 0;
|
|
|
- else
|
|
|
- return err;
|
|
|
-}
|
|
|
-
|
|
|
-static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint,
|
|
|
- int dir, void *ctx, int len,
|
|
|
- gfp_t mem_flags,
|
|
|
- usb_complete_t callback)
|
|
|
-{
|
|
|
- struct urb *urb;
|
|
|
- u8 *buf;
|
|
|
-
|
|
|
- if (endpoint == -1)
|
|
|
- return NULL;
|
|
|
-
|
|
|
- urb = usb_alloc_urb(0, mem_flags);
|
|
|
- if (urb == NULL) {
|
|
|
- dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n",
|
|
|
- __func__, endpoint);
|
|
|
- return NULL;
|
|
|
- }
|
|
|
-
|
|
|
- buf = kmalloc(len, mem_flags);
|
|
|
- if (buf) {
|
|
|
- /* Fill URB using supplied data */
|
|
|
- usb_fill_bulk_urb(urb, serial->dev,
|
|
|
- usb_sndbulkpipe(serial->dev, endpoint) | dir,
|
|
|
- buf, len, callback, ctx);
|
|
|
-
|
|
|
- /* debug */
|
|
|
- dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__,
|
|
|
- dir == USB_DIR_IN ? 'i' : 'o', urb, buf);
|
|
|
- } else {
|
|
|
- dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__,
|
|
|
- dir == USB_DIR_IN ? 'i' : 'o', urb, buf);
|
|
|
-
|
|
|
- sierra_release_urb(urb);
|
|
|
- urb = NULL;
|
|
|
- }
|
|
|
-
|
|
|
- return urb;
|
|
|
-}
|
|
|
-static void sierra_close(struct usb_serial_port *port)
|
|
|
-{
|
|
|
- int i;
|
|
|
- struct urb *urb;
|
|
|
- struct usb_serial *serial = port->serial;
|
|
|
- struct sierra_port_private *portdata;
|
|
|
- struct sierra_intf_private *intfdata = port->serial->private;
|
|
|
-
|
|
|
- dev_dbg(&port->dev, "%s\n", __func__);
|
|
|
- portdata = usb_get_serial_port_data(port);
|
|
|
-
|
|
|
- portdata->rts_state = 0;
|
|
|
- portdata->dtr_state = 0;
|
|
|
-
|
|
|
- usb_autopm_get_interface(serial->interface);
|
|
|
-
|
|
|
- if (serial->dev) {
|
|
|
- mutex_lock(&serial->disc_mutex);
|
|
|
- if (!serial->disconnected)
|
|
|
- sierra_send_setup(port);
|
|
|
- mutex_unlock(&serial->disc_mutex);
|
|
|
- spin_lock_irq(&intfdata->susp_lock);
|
|
|
- portdata->opened = 0;
|
|
|
- spin_unlock_irq(&intfdata->susp_lock);
|
|
|
-
|
|
|
- /* Stop reading urbs */
|
|
|
- sierra_stop_rx_urbs(port);
|
|
|
- /* .. and release them */
|
|
|
- for (i = 0; i < portdata->num_in_urbs; i++) {
|
|
|
- sierra_release_urb(portdata->in_urbs[i]);
|
|
|
- portdata->in_urbs[i] = NULL;
|
|
|
- }
|
|
|
- while((urb = usb_get_from_anchor(&portdata->delayed))) {
|
|
|
- sierra_release_urb(urb);
|
|
|
- usb_autopm_put_interface(serial->interface);
|
|
|
- }
|
|
|
- /* wait for active to finish */
|
|
|
- usb_wait_anchor_empty_timeout(&portdata->active, 500);
|
|
|
- usb_kill_anchored_urbs(&portdata->active);
|
|
|
-
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port)
|
|
|
-{
|
|
|
- struct sierra_port_private *portdata;
|
|
|
- struct usb_serial *serial = port->serial;
|
|
|
- struct sierra_intf_private *intfdata = serial->private;
|
|
|
- int i;
|
|
|
- int err;
|
|
|
- int endpoint;
|
|
|
- struct urb *urb;
|
|
|
-
|
|
|
- portdata = usb_get_serial_port_data(port);
|
|
|
-
|
|
|
- dev_dbg(&port->dev, "%s\n", __func__);
|
|
|
-
|
|
|
- /* Set some sane defaults */
|
|
|
- portdata->rts_state = 1;
|
|
|
- portdata->dtr_state = 1;
|
|
|
-
|
|
|
-
|
|
|
- endpoint = port->bulk_in_endpointAddress;
|
|
|
- for (i = 0; i < portdata->num_in_urbs; i++) {
|
|
|
- urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port,
|
|
|
- IN_BUFLEN, GFP_KERNEL,
|
|
|
- sierra_indat_callback);
|
|
|
- portdata->in_urbs[i] = urb;
|
|
|
- }
|
|
|
- /* clear halt condition */
|
|
|
- usb_clear_halt(serial->dev,
|
|
|
- usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN);
|
|
|
-
|
|
|
- /* reset outstanding out urbs counter */
|
|
|
- spin_lock_irq(&portdata->lock);
|
|
|
- portdata->outstanding_urbs = 0;
|
|
|
- spin_unlock_irq(&portdata->lock);
|
|
|
-
|
|
|
- err = sierra_submit_rx_urbs(port, GFP_KERNEL);
|
|
|
- if (err) {
|
|
|
- /* do everything as in close() but do not call close() because
|
|
|
- * usbserial calls sierra_open() with mutex taken;
|
|
|
- * then if we call sierra_close() inside sierra_open() we
|
|
|
- * violate 'no nested mutexes' kernel condition
|
|
|
- */
|
|
|
- portdata->rts_state = 0;
|
|
|
- portdata->dtr_state = 0;
|
|
|
- usb_autopm_get_interface(serial->interface);
|
|
|
- /* Stop reading urbs */
|
|
|
- sierra_stop_rx_urbs(port);
|
|
|
- /* .. and release them */
|
|
|
- for (i = 0; i < portdata->num_in_urbs; i++) {
|
|
|
- sierra_release_urb(portdata->in_urbs[i]);
|
|
|
- portdata->in_urbs[i] = NULL;
|
|
|
- }
|
|
|
- while((urb = usb_get_from_anchor(&portdata->delayed))) {
|
|
|
- sierra_release_urb(urb);
|
|
|
- usb_autopm_put_interface(serial->interface);
|
|
|
- }
|
|
|
- /* wait for active to finish */
|
|
|
- usb_wait_anchor_empty_timeout(&portdata->active, 500);
|
|
|
- usb_kill_anchored_urbs(&portdata->active);
|
|
|
- /* restore balance for autopm */
|
|
|
- usb_autopm_put_interface(serial->interface);
|
|
|
- return err;
|
|
|
- }
|
|
|
- sierra_send_setup(port);
|
|
|
-
|
|
|
- spin_lock_irq(&intfdata->susp_lock);
|
|
|
- portdata->opened = 1;
|
|
|
- spin_unlock_irq(&intfdata->susp_lock);
|
|
|
- usb_autopm_put_interface(serial->interface);
|
|
|
-
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static void sierra_dtr_rts(struct usb_serial_port *port, int on)
|
|
|
-{
|
|
|
- struct usb_serial *serial = port->serial;
|
|
|
- struct sierra_port_private *portdata;
|
|
|
-
|
|
|
- portdata = usb_get_serial_port_data(port);
|
|
|
- portdata->rts_state = on;
|
|
|
- portdata->dtr_state = on;
|
|
|
-
|
|
|
- if (serial->dev) {
|
|
|
- mutex_lock(&serial->disc_mutex);
|
|
|
- if (!serial->disconnected)
|
|
|
- sierra_send_setup(port);
|
|
|
- mutex_unlock(&serial->disc_mutex);
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-static int sierra_startup(struct usb_serial *serial)
|
|
|
-{
|
|
|
- struct usb_serial_port *port = NULL;
|
|
|
- struct sierra_port_private *portdata = NULL;
|
|
|
- struct sierra_iface_info *himemoryp = NULL;
|
|
|
- int i;
|
|
|
- u8 ifnum;
|
|
|
- u16 fw_attr;
|
|
|
- int result;
|
|
|
-
|
|
|
- dev_dbg(&serial->dev->dev, "%s\n", __func__);
|
|
|
-
|
|
|
- /* Set Device mode to D0 */
|
|
|
- sierra_set_power_state(serial->dev, 0x0000);
|
|
|
-
|
|
|
- /* Check NMEA and set */
|
|
|
- if (nmea)
|
|
|
- sierra_vsc_set_nmea(serial->dev, 1);
|
|
|
-
|
|
|
- if (serial->num_ports) {
|
|
|
- /* Note: One big piece of memory is allocated for all ports
|
|
|
- * private data in one shot. This memory is split into equal
|
|
|
- * pieces for each port.
|
|
|
- */
|
|
|
- portdata = (struct sierra_port_private *)kzalloc
|
|
|
- (sizeof(*portdata) * serial->num_ports, GFP_KERNEL);
|
|
|
- if (!portdata) {
|
|
|
- dev_dbg(&serial->dev->dev, "%s: No memory!\n", __func__);
|
|
|
- return -ENOMEM;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- /* Now setup per port private data */
|
|
|
- for (i = 0; i < serial->num_ports; i++, portdata++) {
|
|
|
- port = serial->port[i];
|
|
|
- /* Initialize selected members of private data because these
|
|
|
- * may be referred to right away */
|
|
|
- spin_lock_init(&portdata->lock);
|
|
|
- init_usb_anchor(&portdata->active);
|
|
|
- init_usb_anchor(&portdata->delayed);
|
|
|
-
|
|
|
- portdata->cts_state = 1;
|
|
|
-
|
|
|
- ifnum = i;
|
|
|
- /* Assume low memory requirements */
|
|
|
- portdata->num_out_urbs = N_OUT_URB;
|
|
|
- portdata->num_in_urbs = N_IN_URB;
|
|
|
-
|
|
|
- /* Determine actual memory requirements */
|
|
|
- if (serial->num_ports == 1) {
|
|
|
- /* Get interface number for composite device */
|
|
|
- ifnum = sierra_calc_interface(serial);
|
|
|
- himemoryp =
|
|
|
- (struct sierra_iface_info *)&typeB_interface_list;
|
|
|
- if (is_himemory(ifnum, himemoryp)) {
|
|
|
- portdata->num_out_urbs = N_OUT_URB_HM;
|
|
|
- portdata->num_in_urbs = N_IN_URB_HM;
|
|
|
- }
|
|
|
- }
|
|
|
- else {
|
|
|
- himemoryp =
|
|
|
- (struct sierra_iface_info *)&typeA_interface_list;
|
|
|
- if (is_himemory(i, himemoryp)) {
|
|
|
- portdata->num_out_urbs = N_OUT_URB_HM;
|
|
|
- portdata->num_in_urbs = N_IN_URB_HM;
|
|
|
- }
|
|
|
- }
|
|
|
- dev_dbg(&serial->dev->dev,
|
|
|
- "Memory usage (urbs) interface #%d, in=%d, out=%d\n",
|
|
|
- ifnum,portdata->num_in_urbs, portdata->num_out_urbs );
|
|
|
- /* Set the port private data pointer */
|
|
|
- usb_set_serial_port_data(port, portdata);
|
|
|
- }
|
|
|
- serial->interface->needs_remote_wakeup = 1;
|
|
|
-
|
|
|
- result = sierra_get_fw_attr(serial->dev, &fw_attr);
|
|
|
- if (result == sizeof(fw_attr) && (fw_attr & SWI_FW_ATTR_PM_MASK) ) {
|
|
|
- dev_info(&serial->dev->dev,
|
|
|
- "APM supported, enabling autosuspend.\n");
|
|
|
-/*******************************************************************************
|
|
|
- * If you want the default /sys/bus/usb/devices/.../.../power/level to be forced
|
|
|
- * to auto, the following needs to be compiled in.
|
|
|
- */
|
|
|
-#ifdef POWER_LEVEL_AUTO
|
|
|
- /* make power level default be 'auto' */
|
|
|
- usb_enable_autosuspend(serial->dev);
|
|
|
-#endif
|
|
|
- } else {
|
|
|
- usb_disable_autosuspend(serial->dev);
|
|
|
- }
|
|
|
-
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static void sierra_release(struct usb_serial *serial)
|
|
|
-{
|
|
|
- int i;
|
|
|
- struct usb_serial_port *port;
|
|
|
- struct sierra_intf_private *intfdata = serial->private;
|
|
|
-
|
|
|
- dev_dbg(&serial->dev->dev, "%s\n", __func__);
|
|
|
-
|
|
|
- if (serial->num_ports > 0) {
|
|
|
- port = serial->port[0];
|
|
|
- if (port)
|
|
|
- /* Note: The entire piece of memory that was allocated
|
|
|
- * in the startup routine can be released by passing
|
|
|
- * a pointer to the beginning of the piece.
|
|
|
- * This address corresponds to the address of the chunk
|
|
|
- * that was given to port 0.
|
|
|
- */
|
|
|
- kfree(usb_get_serial_port_data(port));
|
|
|
- }
|
|
|
-
|
|
|
- for (i = 0; i < serial->num_ports; ++i) {
|
|
|
- port = serial->port[i];
|
|
|
- if (!port)
|
|
|
- continue;
|
|
|
- usb_set_serial_port_data(port, NULL);
|
|
|
- }
|
|
|
- kfree(intfdata);
|
|
|
-}
|
|
|
-
|
|
|
-#ifdef CONFIG_PM
|
|
|
-static void stop_read_write_urbs(struct usb_serial *serial)
|
|
|
-{
|
|
|
- int i;
|
|
|
- struct usb_serial_port *port;
|
|
|
- struct sierra_port_private *portdata;
|
|
|
-
|
|
|
- /* Stop reading/writing urbs */
|
|
|
- for (i = 0; i < serial->num_ports; ++i) {
|
|
|
- port = serial->port[i];
|
|
|
- portdata = usb_get_serial_port_data(port);
|
|
|
- sierra_stop_rx_urbs(port);
|
|
|
- usb_kill_anchored_urbs(&portdata->active);
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-static int sierra_suspend(struct usb_serial *serial, pm_message_t message)
|
|
|
-{
|
|
|
- struct sierra_intf_private *intfdata;
|
|
|
-
|
|
|
- dev_dbg(&serial->dev->dev, "%s\n", __func__);
|
|
|
-
|
|
|
- intfdata = serial->private;
|
|
|
- spin_lock_irq(&intfdata->susp_lock);
|
|
|
-
|
|
|
- if (message.event & PM_EVENT_AUTO) {
|
|
|
- if (intfdata->in_flight) {
|
|
|
- spin_unlock_irq(&intfdata->susp_lock);
|
|
|
- return -EBUSY;
|
|
|
- }
|
|
|
- }
|
|
|
- intfdata->suspended = 1;
|
|
|
- spin_unlock_irq(&intfdata->susp_lock);
|
|
|
-
|
|
|
- stop_read_write_urbs(serial);
|
|
|
-
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static int sierra_resume(struct usb_serial *serial)
|
|
|
-{
|
|
|
- struct usb_serial_port *port;
|
|
|
- struct sierra_intf_private *intfdata = serial->private;
|
|
|
- struct sierra_port_private *portdata;
|
|
|
- struct urb *urb;
|
|
|
- int ec = 0;
|
|
|
- int i, err;
|
|
|
- int len;
|
|
|
- int failed_submits;
|
|
|
-
|
|
|
- dev_dbg(&serial->dev->dev, "%s\n", __func__);
|
|
|
-
|
|
|
- spin_lock_irq(&intfdata->susp_lock);
|
|
|
- for (i = 0; i < serial->num_ports; i++) {
|
|
|
- port = serial->port[i];
|
|
|
- portdata = usb_get_serial_port_data(port);
|
|
|
- failed_submits = 0;
|
|
|
- while ((urb = usb_get_from_anchor(&portdata->delayed))) {
|
|
|
- usb_anchor_urb(urb, &portdata->active);
|
|
|
- intfdata->in_flight++;
|
|
|
- len = urb->transfer_buffer_length;
|
|
|
- err = usb_submit_urb(urb, GFP_ATOMIC);
|
|
|
- if (err < 0) {
|
|
|
- intfdata->in_flight--;
|
|
|
- usb_unanchor_urb(urb);
|
|
|
- failed_submits++;
|
|
|
- atomic_inc(&intfdata->stats.delayed_write_err);
|
|
|
- /* fix pm_usage_cnt */
|
|
|
- usb_autopm_put_interface_async(
|
|
|
- port->serial->interface);
|
|
|
- } else {
|
|
|
- atomic_inc(&intfdata->stats.delayed_writes);
|
|
|
- atomic_add(len, &intfdata->stats.tx_bytes);
|
|
|
- }
|
|
|
- /* release urb - usb_get_from_anchor increased kref */
|
|
|
- usb_free_urb(urb);
|
|
|
- }
|
|
|
-
|
|
|
- if (portdata->opened) {
|
|
|
- err = sierra_submit_rx_urbs(port, GFP_ATOMIC);
|
|
|
- if (err)
|
|
|
- ec++;
|
|
|
- }
|
|
|
- if (failed_submits) {
|
|
|
- /* fix outstanding_urbs counter */
|
|
|
- spin_lock(&portdata->lock); /* assuming irq disabled */
|
|
|
- portdata->outstanding_urbs -= failed_submits;
|
|
|
- spin_unlock(&portdata->lock);
|
|
|
- /* unblock a writer */
|
|
|
- usb_serial_port_softint(port);
|
|
|
- }
|
|
|
- }
|
|
|
- intfdata->suspended = 0;
|
|
|
- spin_unlock_irq(&intfdata->susp_lock);
|
|
|
-
|
|
|
- return ec ? -EIO : 0;
|
|
|
-}
|
|
|
-#else
|
|
|
-#define sierra_suspend NULL
|
|
|
-#define sierra_resume NULL
|
|
|
-#endif
|
|
|
-
|
|
|
-static int sierra_reset_resume(struct usb_interface *intf)
|
|
|
-{
|
|
|
- struct usb_serial *serial = usb_get_intfdata(intf);
|
|
|
- dev_err(&serial->dev->dev, "%s\n", __func__);
|
|
|
- return usb_serial_resume(intf);
|
|
|
-}
|
|
|
-
|
|
|
-static struct usb_driver sierra_driver = {
|
|
|
- .name = "sierra",
|
|
|
- .probe = usb_serial_probe,
|
|
|
- .disconnect = usb_serial_disconnect,
|
|
|
- .suspend = usb_serial_suspend,
|
|
|
- .resume = usb_serial_resume,
|
|
|
- .reset_resume = sierra_reset_resume,
|
|
|
- .id_table = id_table,
|
|
|
-
|
|
|
- .no_dynamic_id = 1,
|
|
|
- .supports_autosuspend = 1,
|
|
|
-};
|
|
|
-
|
|
|
-
|
|
|
-static struct usb_serial_driver sierra_device = {
|
|
|
- .driver = {
|
|
|
- .owner = THIS_MODULE,
|
|
|
- .name = "sierra",
|
|
|
- },
|
|
|
- .description = "Sierra USB modem",
|
|
|
- .id_table = id_table,
|
|
|
- .usb_driver = &sierra_driver,
|
|
|
- .calc_num_ports = sierra_calc_num_ports,
|
|
|
- .probe = sierra_probe,
|
|
|
- .open = sierra_open,
|
|
|
- .close = sierra_close,
|
|
|
- .dtr_rts = sierra_dtr_rts,
|
|
|
- .write = sierra_write,
|
|
|
- .write_room = sierra_write_room,
|
|
|
- .set_termios = sierra_set_termios,
|
|
|
- .tiocmget = sierra_tiocmget,
|
|
|
- .tiocmset = sierra_tiocmset,
|
|
|
- .attach = sierra_startup,
|
|
|
- .release = sierra_release,
|
|
|
- .port_probe = sierra_create_sysfs_attrs,
|
|
|
- .port_remove = sierra_remove_sysfs_attrs,
|
|
|
- .suspend = sierra_suspend,
|
|
|
- .resume = sierra_resume,
|
|
|
- .read_int_callback = sierra_instat_callback,
|
|
|
-
|
|
|
-};
|
|
|
-
|
|
|
-/* Functions used by new usb-serial code. */
|
|
|
-static int __init sierra_init(void)
|
|
|
-{
|
|
|
- int retval;
|
|
|
- retval = usb_serial_register(&sierra_device);
|
|
|
- if (retval)
|
|
|
- goto failed_device_register;
|
|
|
-
|
|
|
- retval = usb_register(&sierra_driver);
|
|
|
- if (retval)
|
|
|
- goto failed_driver_register;
|
|
|
-
|
|
|
- printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
|
|
|
- DRIVER_DESC "\n");
|
|
|
-
|
|
|
- return 0;
|
|
|
-
|
|
|
-failed_driver_register:
|
|
|
- usb_serial_deregister(&sierra_device);
|
|
|
-failed_device_register:
|
|
|
- return retval;
|
|
|
-}
|
|
|
-
|
|
|
-static void __exit sierra_exit(void)
|
|
|
-{
|
|
|
- usb_deregister(&sierra_driver);
|
|
|
- usb_serial_deregister(&sierra_device);
|
|
|
-}
|
|
|
-
|
|
|
-module_init(sierra_init);
|
|
|
-module_exit(sierra_exit);
|
|
|
-
|
|
|
-MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
|
-MODULE_DESCRIPTION(DRIVER_DESC);
|
|
|
-MODULE_VERSION(DRIVER_VERSION);
|
|
|
-MODULE_LICENSE("GPL");
|
|
|
-
|
|
|
-module_param(nmea, bool, S_IRUGO | S_IWUSR);
|
|
|
-MODULE_PARM_DESC(nmea, "NMEA streaming");
|
|
|
-
|
|
|
-module_param(debug, bool, S_IRUGO | S_IWUSR);
|
|
|
-MODULE_PARM_DESC(debug, "Debug messages");
|
Felix Fietkau