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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-08-27 18:03:32 +0300
committerDavid S. Miller <davem@davemloft.net>2017-08-29 02:42:57 +0300
commit6c391ff758eb9f41e11c6143fd5bdb3b3324bf9f (patch)
tree95ee8f47eacb698ecb3de600e73f07bde3f0d404 /drivers/net/irda/ksdazzle-sir.c
parent1ca163afb6fd569b6efdc221954177cba5a02cbc (diff)
downloadlinux-6c391ff758eb9f41e11c6143fd5bdb3b3324bf9f.tar.xz
irda: move drivers/net/irda to drivers/staging/irda/drivers
Move the irda drivers from drivers/net/irda/ to drivers/staging/irda/drivers as they will be deleted in a future kernel release. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/irda/ksdazzle-sir.c')
-rw-r--r--drivers/net/irda/ksdazzle-sir.c813
1 files changed, 0 insertions, 813 deletions
diff --git a/drivers/net/irda/ksdazzle-sir.c b/drivers/net/irda/ksdazzle-sir.c
deleted file mode 100644
index d2a0755df596..000000000000
--- a/drivers/net/irda/ksdazzle-sir.c
+++ /dev/null
@@ -1,813 +0,0 @@
-/*****************************************************************************
-*
-* Filename: ksdazzle.c
-* Version: 0.1.2
-* Description: Irda KingSun Dazzle USB Dongle
-* Status: Experimental
-* Author: Alex Villacís Lasso <a_villacis@palosanto.com>
-*
-* Based on stir4200, mcs7780, kingsun-sir drivers.
-*
-* This program is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License as published by
-* the Free Software Foundation; either version 2 of the License.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-* GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with this program; if not, write to the Free Software
-* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*
-*****************************************************************************/
-
-/*
- * Following is my most current (2007-07-26) understanding of how the Kingsun
- * 07D0:4100 dongle (sometimes known as the MA-660) is supposed to work. This
- * information was deduced by examining the USB traffic captured with USBSnoopy
- * from the WinXP driver. Feel free to update here as more of the dongle is
- * known.
- *
- * General: This dongle exposes one interface with two interrupt endpoints, one
- * IN and one OUT. In this regard, it is similar to what the Kingsun/Donshine
- * dongle (07c0:4200) exposes. Traffic is raw and needs to be wrapped and
- * unwrapped manually as in stir4200, kingsun-sir, and ks959-sir.
- *
- * Transmission: To transmit an IrDA frame, it is necessary to wrap it, then
- * split it into multiple segments of up to 7 bytes each, and transmit each in
- * sequence. It seems that sending a single big block (like kingsun-sir does)
- * won't work with this dongle. Each segment needs to be prefixed with a value
- * equal to (unsigned char)0xF8 + <number of bytes in segment>, inside a payload
- * of exactly 8 bytes. For example, a segment of 1 byte gets prefixed by 0xF9,
- * and one of 7 bytes gets prefixed by 0xFF. The bytes at the end of the
- * payload, not considered by the prefix, are ignored (set to 0 by this
- * implementation).
- *
- * Reception: To receive data, the driver must poll the dongle regularly (like
- * kingsun-sir.c) with interrupt URBs. If data is available, it will be returned
- * in payloads from 0 to 8 bytes long. When concatenated, these payloads form
- * a raw IrDA stream that needs to be unwrapped as in stir4200 and kingsun-sir
- *
- * Speed change: To change the speed of the dongle, the driver prepares a
- * control URB with the following as a setup packet:
- * bRequestType USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE
- * bRequest 0x09
- * wValue 0x0200
- * wIndex 0x0001
- * wLength 0x0008 (length of the payload)
- * The payload is a 8-byte record, apparently identical to the one used in
- * drivers/usb/serial/cypress_m8.c to change speed:
- * __u32 baudSpeed;
- * unsigned int dataBits : 2; // 0 - 5 bits 3 - 8 bits
- * unsigned int : 1;
- * unsigned int stopBits : 1;
- * unsigned int parityEnable : 1;
- * unsigned int parityType : 1;
- * unsigned int : 1;
- * unsigned int reset : 1;
- * unsigned char reserved[3]; // set to 0
- *
- * For now only SIR speeds have been observed with this dongle. Therefore,
- * nothing is known on what changes (if any) must be done to frame wrapping /
- * unwrapping for higher than SIR speeds. This driver assumes no change is
- * necessary and announces support for all the way to 115200 bps.
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/usb.h>
-#include <linux/device.h>
-#include <linux/crc32.h>
-
-#include <asm/unaligned.h>
-#include <asm/byteorder.h>
-#include <linux/uaccess.h>
-
-#include <net/irda/irda.h>
-#include <net/irda/wrapper.h>
-#include <net/irda/crc.h>
-
-#define KSDAZZLE_VENDOR_ID 0x07d0
-#define KSDAZZLE_PRODUCT_ID 0x4100
-
-/* These are the currently known USB ids */
-static const struct usb_device_id dongles[] = {
- /* KingSun Co,Ltd IrDA/USB Bridge */
- {USB_DEVICE(KSDAZZLE_VENDOR_ID, KSDAZZLE_PRODUCT_ID)},
- {}
-};
-
-MODULE_DEVICE_TABLE(usb, dongles);
-
-#define KINGSUN_MTT 0x07
-#define KINGSUN_REQ_RECV 0x01
-#define KINGSUN_REQ_SEND 0x09
-
-#define KINGSUN_SND_FIFO_SIZE 2048 /* Max packet we can send */
-#define KINGSUN_RCV_MAX 2048 /* Max transfer we can receive */
-
-struct ksdazzle_speedparams {
- __le32 baudrate; /* baud rate, little endian */
- __u8 flags;
- __u8 reserved[3];
-} __packed;
-
-#define KS_DATA_5_BITS 0x00
-#define KS_DATA_6_BITS 0x01
-#define KS_DATA_7_BITS 0x02
-#define KS_DATA_8_BITS 0x03
-
-#define KS_STOP_BITS_1 0x00
-#define KS_STOP_BITS_2 0x08
-
-#define KS_PAR_DISABLE 0x00
-#define KS_PAR_EVEN 0x10
-#define KS_PAR_ODD 0x30
-#define KS_RESET 0x80
-
-#define KINGSUN_EP_IN 0
-#define KINGSUN_EP_OUT 1
-
-struct ksdazzle_cb {
- struct usb_device *usbdev; /* init: probe_irda */
- struct net_device *netdev; /* network layer */
- struct irlap_cb *irlap; /* The link layer we are binded to */
-
- struct qos_info qos;
-
- struct urb *tx_urb;
- __u8 *tx_buf_clear;
- unsigned int tx_buf_clear_used;
- unsigned int tx_buf_clear_sent;
- __u8 tx_payload[8];
-
- struct urb *rx_urb;
- __u8 *rx_buf;
- iobuff_t rx_unwrap_buff;
-
- struct usb_ctrlrequest *speed_setuprequest;
- struct urb *speed_urb;
- struct ksdazzle_speedparams speedparams;
- unsigned int new_speed;
-
- __u8 ep_in;
- __u8 ep_out;
-
- spinlock_t lock;
- int receiving;
-};
-
-/* Callback transmission routine */
-static void ksdazzle_speed_irq(struct urb *urb)
-{
- /* unlink, shutdown, unplug, other nasties */
- if (urb->status != 0)
- dev_err(&urb->dev->dev,
- "ksdazzle_speed_irq: urb asynchronously failed - %d\n",
- urb->status);
-}
-
-/* Send a control request to change speed of the dongle */
-static int ksdazzle_change_speed(struct ksdazzle_cb *kingsun, unsigned speed)
-{
- static unsigned int supported_speeds[] = { 2400, 9600, 19200, 38400,
- 57600, 115200, 576000, 1152000, 4000000, 0
- };
- int err;
- unsigned int i;
-
- if (kingsun->speed_setuprequest == NULL || kingsun->speed_urb == NULL)
- return -ENOMEM;
-
- /* Check that requested speed is among the supported ones */
- for (i = 0; supported_speeds[i] && supported_speeds[i] != speed; i++) ;
- if (supported_speeds[i] == 0)
- return -EOPNOTSUPP;
-
- memset(&(kingsun->speedparams), 0, sizeof(struct ksdazzle_speedparams));
- kingsun->speedparams.baudrate = cpu_to_le32(speed);
- kingsun->speedparams.flags = KS_DATA_8_BITS;
-
- /* speed_setuprequest pre-filled in ksdazzle_probe */
- usb_fill_control_urb(kingsun->speed_urb, kingsun->usbdev,
- usb_sndctrlpipe(kingsun->usbdev, 0),
- (unsigned char *)kingsun->speed_setuprequest,
- &(kingsun->speedparams),
- sizeof(struct ksdazzle_speedparams),
- ksdazzle_speed_irq, kingsun);
- kingsun->speed_urb->status = 0;
- err = usb_submit_urb(kingsun->speed_urb, GFP_ATOMIC);
-
- return err;
-}
-
-/* Submit one fragment of an IrDA frame to the dongle */
-static void ksdazzle_send_irq(struct urb *urb);
-static int ksdazzle_submit_tx_fragment(struct ksdazzle_cb *kingsun)
-{
- unsigned int wraplen;
- int ret;
-
- /* We can send at most 7 bytes of payload at a time */
- wraplen = 7;
- if (wraplen > kingsun->tx_buf_clear_used)
- wraplen = kingsun->tx_buf_clear_used;
-
- /* Prepare payload prefix with used length */
- memset(kingsun->tx_payload, 0, 8);
- kingsun->tx_payload[0] = (unsigned char)0xf8 + wraplen;
- memcpy(kingsun->tx_payload + 1, kingsun->tx_buf_clear, wraplen);
-
- usb_fill_int_urb(kingsun->tx_urb, kingsun->usbdev,
- usb_sndintpipe(kingsun->usbdev, kingsun->ep_out),
- kingsun->tx_payload, 8, ksdazzle_send_irq, kingsun, 1);
- kingsun->tx_urb->status = 0;
- ret = usb_submit_urb(kingsun->tx_urb, GFP_ATOMIC);
-
- /* Remember how much data was sent, in order to update at callback */
- kingsun->tx_buf_clear_sent = (ret == 0) ? wraplen : 0;
- return ret;
-}
-
-/* Callback transmission routine */
-static void ksdazzle_send_irq(struct urb *urb)
-{
- struct ksdazzle_cb *kingsun = urb->context;
- struct net_device *netdev = kingsun->netdev;
- int ret = 0;
-
- /* in process of stopping, just drop data */
- if (!netif_running(kingsun->netdev)) {
- dev_err(&kingsun->usbdev->dev,
- "ksdazzle_send_irq: Network not running!\n");
- return;
- }
-
- /* unlink, shutdown, unplug, other nasties */
- if (urb->status != 0) {
- dev_err(&kingsun->usbdev->dev,
- "ksdazzle_send_irq: urb asynchronously failed - %d\n",
- urb->status);
- return;
- }
-
- if (kingsun->tx_buf_clear_used > 0) {
- /* Update data remaining to be sent */
- if (kingsun->tx_buf_clear_sent < kingsun->tx_buf_clear_used) {
- memmove(kingsun->tx_buf_clear,
- kingsun->tx_buf_clear +
- kingsun->tx_buf_clear_sent,
- kingsun->tx_buf_clear_used -
- kingsun->tx_buf_clear_sent);
- }
- kingsun->tx_buf_clear_used -= kingsun->tx_buf_clear_sent;
- kingsun->tx_buf_clear_sent = 0;
-
- if (kingsun->tx_buf_clear_used > 0) {
- /* There is more data to be sent */
- if ((ret = ksdazzle_submit_tx_fragment(kingsun)) != 0) {
- dev_err(&kingsun->usbdev->dev,
- "ksdazzle_send_irq: failed tx_urb submit: %d\n",
- ret);
- switch (ret) {
- case -ENODEV:
- case -EPIPE:
- break;
- default:
- netdev->stats.tx_errors++;
- netif_start_queue(netdev);
- }
- }
- } else {
- /* All data sent, send next speed && wake network queue */
- if (kingsun->new_speed != -1 &&
- cpu_to_le32(kingsun->new_speed) !=
- kingsun->speedparams.baudrate)
- ksdazzle_change_speed(kingsun,
- kingsun->new_speed);
-
- netif_wake_queue(netdev);
- }
- }
-}
-
-/*
- * Called from net/core when new frame is available.
- */
-static netdev_tx_t ksdazzle_hard_xmit(struct sk_buff *skb,
- struct net_device *netdev)
-{
- struct ksdazzle_cb *kingsun;
- unsigned int wraplen;
- int ret = 0;
-
- netif_stop_queue(netdev);
-
- /* the IRDA wrapping routines don't deal with non linear skb */
- SKB_LINEAR_ASSERT(skb);
-
- kingsun = netdev_priv(netdev);
-
- spin_lock(&kingsun->lock);
- kingsun->new_speed = irda_get_next_speed(skb);
-
- /* Append data to the end of whatever data remains to be transmitted */
- wraplen =
- async_wrap_skb(skb, kingsun->tx_buf_clear, KINGSUN_SND_FIFO_SIZE);
- kingsun->tx_buf_clear_used = wraplen;
-
- if ((ret = ksdazzle_submit_tx_fragment(kingsun)) != 0) {
- dev_err(&kingsun->usbdev->dev,
- "ksdazzle_hard_xmit: failed tx_urb submit: %d\n", ret);
- switch (ret) {
- case -ENODEV:
- case -EPIPE:
- break;
- default:
- netdev->stats.tx_errors++;
- netif_start_queue(netdev);
- }
- } else {
- netdev->stats.tx_packets++;
- netdev->stats.tx_bytes += skb->len;
-
- }
-
- dev_kfree_skb(skb);
- spin_unlock(&kingsun->lock);
-
- return NETDEV_TX_OK;
-}
-
-/* Receive callback function */
-static void ksdazzle_rcv_irq(struct urb *urb)
-{
- struct ksdazzle_cb *kingsun = urb->context;
- struct net_device *netdev = kingsun->netdev;
-
- /* in process of stopping, just drop data */
- if (!netif_running(netdev)) {
- kingsun->receiving = 0;
- return;
- }
-
- /* unlink, shutdown, unplug, other nasties */
- if (urb->status != 0) {
- dev_err(&kingsun->usbdev->dev,
- "ksdazzle_rcv_irq: urb asynchronously failed - %d\n",
- urb->status);
- kingsun->receiving = 0;
- return;
- }
-
- if (urb->actual_length > 0) {
- __u8 *bytes = urb->transfer_buffer;
- unsigned int i;
-
- for (i = 0; i < urb->actual_length; i++) {
- async_unwrap_char(netdev, &netdev->stats,
- &kingsun->rx_unwrap_buff, bytes[i]);
- }
- kingsun->receiving =
- (kingsun->rx_unwrap_buff.state != OUTSIDE_FRAME) ? 1 : 0;
- }
-
- /* This urb has already been filled in ksdazzle_net_open. It is assumed that
- urb keeps the pointer to the payload buffer.
- */
- urb->status = 0;
- usb_submit_urb(urb, GFP_ATOMIC);
-}
-
-/*
- * Function ksdazzle_net_open (dev)
- *
- * Network device is taken up. Usually this is done by "ifconfig irda0 up"
- */
-static int ksdazzle_net_open(struct net_device *netdev)
-{
- struct ksdazzle_cb *kingsun = netdev_priv(netdev);
- int err = -ENOMEM;
- char hwname[16];
-
- /* At this point, urbs are NULL, and skb is NULL (see ksdazzle_probe) */
- kingsun->receiving = 0;
-
- /* Initialize for SIR to copy data directly into skb. */
- kingsun->rx_unwrap_buff.in_frame = FALSE;
- kingsun->rx_unwrap_buff.state = OUTSIDE_FRAME;
- kingsun->rx_unwrap_buff.truesize = IRDA_SKB_MAX_MTU;
- kingsun->rx_unwrap_buff.skb = dev_alloc_skb(IRDA_SKB_MAX_MTU);
- if (!kingsun->rx_unwrap_buff.skb)
- goto free_mem;
-
- skb_reserve(kingsun->rx_unwrap_buff.skb, 1);
- kingsun->rx_unwrap_buff.head = kingsun->rx_unwrap_buff.skb->data;
-
- kingsun->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!kingsun->rx_urb)
- goto free_mem;
-
- kingsun->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!kingsun->tx_urb)
- goto free_mem;
-
- kingsun->speed_urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!kingsun->speed_urb)
- goto free_mem;
-
- /* Initialize speed for dongle */
- kingsun->new_speed = 9600;
- err = ksdazzle_change_speed(kingsun, 9600);
- if (err < 0)
- goto free_mem;
-
- /*
- * Now that everything should be initialized properly,
- * Open new IrLAP layer instance to take care of us...
- */
- sprintf(hwname, "usb#%d", kingsun->usbdev->devnum);
- kingsun->irlap = irlap_open(netdev, &kingsun->qos, hwname);
- if (!kingsun->irlap) {
- err = -ENOMEM;
- dev_err(&kingsun->usbdev->dev, "irlap_open failed\n");
- goto free_mem;
- }
-
- /* Start reception. */
- usb_fill_int_urb(kingsun->rx_urb, kingsun->usbdev,
- usb_rcvintpipe(kingsun->usbdev, kingsun->ep_in),
- kingsun->rx_buf, KINGSUN_RCV_MAX, ksdazzle_rcv_irq,
- kingsun, 1);
- kingsun->rx_urb->status = 0;
- err = usb_submit_urb(kingsun->rx_urb, GFP_KERNEL);
- if (err) {
- dev_err(&kingsun->usbdev->dev, "first urb-submit failed: %d\n", err);
- goto close_irlap;
- }
-
- netif_start_queue(netdev);
-
- /* Situation at this point:
- - all work buffers allocated
- - urbs allocated and ready to fill
- - max rx packet known (in max_rx)
- - unwrap state machine initialized, in state outside of any frame
- - receive request in progress
- - IrLAP layer started, about to hand over packets to send
- */
-
- return 0;
-
- close_irlap:
- irlap_close(kingsun->irlap);
- free_mem:
- usb_free_urb(kingsun->speed_urb);
- kingsun->speed_urb = NULL;
- usb_free_urb(kingsun->tx_urb);
- kingsun->tx_urb = NULL;
- usb_free_urb(kingsun->rx_urb);
- kingsun->rx_urb = NULL;
- if (kingsun->rx_unwrap_buff.skb) {
- kfree_skb(kingsun->rx_unwrap_buff.skb);
- kingsun->rx_unwrap_buff.skb = NULL;
- kingsun->rx_unwrap_buff.head = NULL;
- }
- return err;
-}
-
-/*
- * Function ksdazzle_net_close (dev)
- *
- * Network device is taken down. Usually this is done by
- * "ifconfig irda0 down"
- */
-static int ksdazzle_net_close(struct net_device *netdev)
-{
- struct ksdazzle_cb *kingsun = netdev_priv(netdev);
-
- /* Stop transmit processing */
- netif_stop_queue(netdev);
-
- /* Mop up receive && transmit urb's */
- usb_kill_urb(kingsun->tx_urb);
- usb_free_urb(kingsun->tx_urb);
- kingsun->tx_urb = NULL;
-
- usb_kill_urb(kingsun->speed_urb);
- usb_free_urb(kingsun->speed_urb);
- kingsun->speed_urb = NULL;
-
- usb_kill_urb(kingsun->rx_urb);
- usb_free_urb(kingsun->rx_urb);
- kingsun->rx_urb = NULL;
-
- kfree_skb(kingsun->rx_unwrap_buff.skb);
- kingsun->rx_unwrap_buff.skb = NULL;
- kingsun->rx_unwrap_buff.head = NULL;
- kingsun->rx_unwrap_buff.in_frame = FALSE;
- kingsun->rx_unwrap_buff.state = OUTSIDE_FRAME;
- kingsun->receiving = 0;
-
- /* Stop and remove instance of IrLAP */
- irlap_close(kingsun->irlap);
-
- kingsun->irlap = NULL;
-
- return 0;
-}
-
-/*
- * IOCTLs : Extra out-of-band network commands...
- */
-static int ksdazzle_net_ioctl(struct net_device *netdev, struct ifreq *rq,
- int cmd)
-{
- struct if_irda_req *irq = (struct if_irda_req *)rq;
- struct ksdazzle_cb *kingsun = netdev_priv(netdev);
- int ret = 0;
-
- switch (cmd) {
- case SIOCSBANDWIDTH: /* Set bandwidth */
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- /* Check if the device is still there */
- if (netif_device_present(kingsun->netdev))
- return ksdazzle_change_speed(kingsun,
- irq->ifr_baudrate);
- break;
-
- case SIOCSMEDIABUSY: /* Set media busy */
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- /* Check if the IrDA stack is still there */
- if (netif_running(kingsun->netdev))
- irda_device_set_media_busy(kingsun->netdev, TRUE);
- break;
-
- case SIOCGRECEIVING:
- /* Only approximately true */
- irq->ifr_receiving = kingsun->receiving;
- break;
-
- default:
- ret = -EOPNOTSUPP;
- }
-
- return ret;
-}
-
-static const struct net_device_ops ksdazzle_ops = {
- .ndo_start_xmit = ksdazzle_hard_xmit,
- .ndo_open = ksdazzle_net_open,
- .ndo_stop = ksdazzle_net_close,
- .ndo_do_ioctl = ksdazzle_net_ioctl,
-};
-
-/*
- * This routine is called by the USB subsystem for each new device
- * in the system. We need to check if the device is ours, and in
- * this case start handling it.
- */
-static int ksdazzle_probe(struct usb_interface *intf,
- const struct usb_device_id *id)
-{
- struct usb_host_interface *interface;
- struct usb_endpoint_descriptor *endpoint;
-
- struct usb_device *dev = interface_to_usbdev(intf);
- struct ksdazzle_cb *kingsun = NULL;
- struct net_device *net = NULL;
- int ret = -ENOMEM;
- int pipe, maxp_in, maxp_out;
- __u8 ep_in;
- __u8 ep_out;
-
- /* Check that there really are two interrupt endpoints. Check based on the
- one in drivers/usb/input/usbmouse.c
- */
- interface = intf->cur_altsetting;
- if (interface->desc.bNumEndpoints != 2) {
- dev_err(&intf->dev, "ksdazzle: expected 2 endpoints, found %d\n",
- interface->desc.bNumEndpoints);
- return -ENODEV;
- }
- endpoint = &interface->endpoint[KINGSUN_EP_IN].desc;
- if (!usb_endpoint_is_int_in(endpoint)) {
- dev_err(&intf->dev,
- "ksdazzle: endpoint 0 is not interrupt IN\n");
- return -ENODEV;
- }
-
- ep_in = endpoint->bEndpointAddress;
- pipe = usb_rcvintpipe(dev, ep_in);
- maxp_in = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
- if (maxp_in > 255 || maxp_in <= 1) {
- dev_err(&intf->dev,
- "ksdazzle: endpoint 0 has max packet size %d not in range [2..255]\n",
- maxp_in);
- return -ENODEV;
- }
-
- endpoint = &interface->endpoint[KINGSUN_EP_OUT].desc;
- if (!usb_endpoint_is_int_out(endpoint)) {
- dev_err(&intf->dev,
- "ksdazzle: endpoint 1 is not interrupt OUT\n");
- return -ENODEV;
- }
-
- ep_out = endpoint->bEndpointAddress;
- pipe = usb_sndintpipe(dev, ep_out);
- maxp_out = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
-
- /* Allocate network device container. */
- net = alloc_irdadev(sizeof(*kingsun));
- if (!net)
- goto err_out1;
-
- SET_NETDEV_DEV(net, &intf->dev);
- kingsun = netdev_priv(net);
- kingsun->netdev = net;
- kingsun->usbdev = dev;
- kingsun->ep_in = ep_in;
- kingsun->ep_out = ep_out;
- kingsun->irlap = NULL;
- kingsun->tx_urb = NULL;
- kingsun->tx_buf_clear = NULL;
- kingsun->tx_buf_clear_used = 0;
- kingsun->tx_buf_clear_sent = 0;
-
- kingsun->rx_urb = NULL;
- kingsun->rx_buf = NULL;
- kingsun->rx_unwrap_buff.in_frame = FALSE;
- kingsun->rx_unwrap_buff.state = OUTSIDE_FRAME;
- kingsun->rx_unwrap_buff.skb = NULL;
- kingsun->receiving = 0;
- spin_lock_init(&kingsun->lock);
-
- kingsun->speed_setuprequest = NULL;
- kingsun->speed_urb = NULL;
- kingsun->speedparams.baudrate = 0;
-
- /* Allocate input buffer */
- kingsun->rx_buf = kmalloc(KINGSUN_RCV_MAX, GFP_KERNEL);
- if (!kingsun->rx_buf)
- goto free_mem;
-
- /* Allocate output buffer */
- kingsun->tx_buf_clear = kmalloc(KINGSUN_SND_FIFO_SIZE, GFP_KERNEL);
- if (!kingsun->tx_buf_clear)
- goto free_mem;
-
- /* Allocate and initialize speed setup packet */
- kingsun->speed_setuprequest =
- kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL);
- if (!kingsun->speed_setuprequest)
- goto free_mem;
- kingsun->speed_setuprequest->bRequestType =
- USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
- kingsun->speed_setuprequest->bRequest = KINGSUN_REQ_SEND;
- kingsun->speed_setuprequest->wValue = cpu_to_le16(0x0200);
- kingsun->speed_setuprequest->wIndex = cpu_to_le16(0x0001);
- kingsun->speed_setuprequest->wLength =
- cpu_to_le16(sizeof(struct ksdazzle_speedparams));
-
- printk(KERN_INFO "KingSun/Dazzle IRDA/USB found at address %d, "
- "Vendor: %x, Product: %x\n",
- dev->devnum, le16_to_cpu(dev->descriptor.idVendor),
- le16_to_cpu(dev->descriptor.idProduct));
-
- /* Initialize QoS for this device */
- irda_init_max_qos_capabilies(&kingsun->qos);
-
- /* Baud rates known to be supported. Please uncomment if devices (other
- than a SonyEriccson K300 phone) can be shown to support higher speeds
- with this dongle.
- */
- kingsun->qos.baud_rate.bits =
- IR_2400 | IR_9600 | IR_19200 | IR_38400 | IR_57600 | IR_115200;
- kingsun->qos.min_turn_time.bits &= KINGSUN_MTT;
- irda_qos_bits_to_value(&kingsun->qos);
-
- /* Override the network functions we need to use */
- net->netdev_ops = &ksdazzle_ops;
-
- ret = register_netdev(net);
- if (ret != 0)
- goto free_mem;
-
- dev_info(&net->dev, "IrDA: Registered KingSun/Dazzle device %s\n",
- net->name);
-
- usb_set_intfdata(intf, kingsun);
-
- /* Situation at this point:
- - all work buffers allocated
- - setup requests pre-filled
- - urbs not allocated, set to NULL
- - max rx packet known (is KINGSUN_FIFO_SIZE)
- - unwrap state machine (partially) initialized, but skb == NULL
- */
-
- return 0;
-
- free_mem:
- kfree(kingsun->speed_setuprequest);
- kfree(kingsun->tx_buf_clear);
- kfree(kingsun->rx_buf);
- free_netdev(net);
- err_out1:
- return ret;
-}
-
-/*
- * The current device is removed, the USB layer tell us to shut it down...
- */
-static void ksdazzle_disconnect(struct usb_interface *intf)
-{
- struct ksdazzle_cb *kingsun = usb_get_intfdata(intf);
-
- if (!kingsun)
- return;
-
- unregister_netdev(kingsun->netdev);
-
- /* Mop up receive && transmit urb's */
- usb_kill_urb(kingsun->speed_urb);
- usb_free_urb(kingsun->speed_urb);
- kingsun->speed_urb = NULL;
-
- usb_kill_urb(kingsun->tx_urb);
- usb_free_urb(kingsun->tx_urb);
- kingsun->tx_urb = NULL;
-
- usb_kill_urb(kingsun->rx_urb);
- usb_free_urb(kingsun->rx_urb);
- kingsun->rx_urb = NULL;
-
- kfree(kingsun->speed_setuprequest);
- kfree(kingsun->tx_buf_clear);
- kfree(kingsun->rx_buf);
- free_netdev(kingsun->netdev);
-
- usb_set_intfdata(intf, NULL);
-}
-
-#ifdef CONFIG_PM
-/* USB suspend, so power off the transmitter/receiver */
-static int ksdazzle_suspend(struct usb_interface *intf, pm_message_t message)
-{
- struct ksdazzle_cb *kingsun = usb_get_intfdata(intf);
-
- netif_device_detach(kingsun->netdev);
- if (kingsun->speed_urb != NULL)
- usb_kill_urb(kingsun->speed_urb);
- if (kingsun->tx_urb != NULL)
- usb_kill_urb(kingsun->tx_urb);
- if (kingsun->rx_urb != NULL)
- usb_kill_urb(kingsun->rx_urb);
- return 0;
-}
-
-/* Coming out of suspend, so reset hardware */
-static int ksdazzle_resume(struct usb_interface *intf)
-{
- struct ksdazzle_cb *kingsun = usb_get_intfdata(intf);
-
- if (kingsun->rx_urb != NULL) {
- /* Setup request already filled in ksdazzle_probe */
- usb_submit_urb(kingsun->rx_urb, GFP_KERNEL);
- }
- netif_device_attach(kingsun->netdev);
-
- return 0;
-}
-#endif
-
-/*
- * USB device callbacks
- */
-static struct usb_driver irda_driver = {
- .name = "ksdazzle-sir",
- .probe = ksdazzle_probe,
- .disconnect = ksdazzle_disconnect,
- .id_table = dongles,
-#ifdef CONFIG_PM
- .suspend = ksdazzle_suspend,
- .resume = ksdazzle_resume,
-#endif
-};
-
-module_usb_driver(irda_driver);
-
-MODULE_AUTHOR("Alex Villacís Lasso <a_villacis@palosanto.com>");
-MODULE_DESCRIPTION("IrDA-USB Dongle Driver for KingSun Dazzle");
-MODULE_LICENSE("GPL");