|
|
@@ -0,0 +1,2196 @@
|
|
|
+/* hfcsusb.c
|
|
|
+ * mISDN driver for Colognechip HFC-S USB chip
|
|
|
+ *
|
|
|
+ * Copyright 2001 by Peter Sprenger (sprenger@moving-bytes.de)
|
|
|
+ * Copyright 2008 by Martin Bachem (info@bachem-it.com)
|
|
|
+ *
|
|
|
+ * 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, or (at your option)
|
|
|
+ * any later version.
|
|
|
+ *
|
|
|
+ * This program is distributed in the hope that it will be useful,
|
|
|
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
+ * GNU General Public License for more details.
|
|
|
+ *
|
|
|
+ * You should have received a copy of the GNU General Public License
|
|
|
+ * along with this program; if not, write to the Free Software
|
|
|
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
+ *
|
|
|
+ *
|
|
|
+ * module params
|
|
|
+ * debug=<n>, default=0, with n=0xHHHHGGGG
|
|
|
+ * H - l1 driver flags described in hfcsusb.h
|
|
|
+ * G - common mISDN debug flags described at mISDNhw.h
|
|
|
+ *
|
|
|
+ * poll=<n>, default 128
|
|
|
+ * n : burst size of PH_DATA_IND at transparent rx data
|
|
|
+ *
|
|
|
+ */
|
|
|
+
|
|
|
+#include <linux/module.h>
|
|
|
+#include <linux/delay.h>
|
|
|
+#include <linux/usb.h>
|
|
|
+#include <linux/mISDNhw.h>
|
|
|
+#include "hfcsusb.h"
|
|
|
+
|
|
|
+const char *hfcsusb_rev = "Revision: 0.3.3 (socket), 2008-11-05";
|
|
|
+
|
|
|
+static unsigned int debug;
|
|
|
+static int poll = DEFAULT_TRANSP_BURST_SZ;
|
|
|
+
|
|
|
+static LIST_HEAD(HFClist);
|
|
|
+static DEFINE_RWLOCK(HFClock);
|
|
|
+
|
|
|
+
|
|
|
+MODULE_AUTHOR("Martin Bachem");
|
|
|
+MODULE_LICENSE("GPL");
|
|
|
+module_param(debug, uint, S_IRUGO | S_IWUSR);
|
|
|
+module_param(poll, int, 0);
|
|
|
+
|
|
|
+static int hfcsusb_cnt;
|
|
|
+
|
|
|
+/* some function prototypes */
|
|
|
+static void hfcsusb_ph_command(struct hfcsusb *hw, u_char command);
|
|
|
+static void release_hw(struct hfcsusb *hw);
|
|
|
+static void reset_hfcsusb(struct hfcsusb *hw);
|
|
|
+static void setPortMode(struct hfcsusb *hw);
|
|
|
+static void hfcsusb_start_endpoint(struct hfcsusb *hw, int channel);
|
|
|
+static void hfcsusb_stop_endpoint(struct hfcsusb *hw, int channel);
|
|
|
+static int hfcsusb_setup_bch(struct bchannel *bch, int protocol);
|
|
|
+static void deactivate_bchannel(struct bchannel *bch);
|
|
|
+static void hfcsusb_ph_info(struct hfcsusb *hw);
|
|
|
+
|
|
|
+/* start next background transfer for control channel */
|
|
|
+static void
|
|
|
+ctrl_start_transfer(struct hfcsusb *hw)
|
|
|
+{
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
|
|
|
+
|
|
|
+ if (hw->ctrl_cnt) {
|
|
|
+ hw->ctrl_urb->pipe = hw->ctrl_out_pipe;
|
|
|
+ hw->ctrl_urb->setup_packet = (u_char *)&hw->ctrl_write;
|
|
|
+ hw->ctrl_urb->transfer_buffer = NULL;
|
|
|
+ hw->ctrl_urb->transfer_buffer_length = 0;
|
|
|
+ hw->ctrl_write.wIndex =
|
|
|
+ cpu_to_le16(hw->ctrl_buff[hw->ctrl_out_idx].hfcs_reg);
|
|
|
+ hw->ctrl_write.wValue =
|
|
|
+ cpu_to_le16(hw->ctrl_buff[hw->ctrl_out_idx].reg_val);
|
|
|
+
|
|
|
+ usb_submit_urb(hw->ctrl_urb, GFP_ATOMIC);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * queue a control transfer request to write HFC-S USB
|
|
|
+ * chip register using CTRL resuest queue
|
|
|
+ */
|
|
|
+static int write_reg(struct hfcsusb *hw, __u8 reg, __u8 val)
|
|
|
+{
|
|
|
+ struct ctrl_buf *buf;
|
|
|
+
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s reg(0x%02x) val(0x%02x)\n",
|
|
|
+ hw->name, __func__, reg, val);
|
|
|
+
|
|
|
+ spin_lock(&hw->ctrl_lock);
|
|
|
+ if (hw->ctrl_cnt >= HFC_CTRL_BUFSIZE)
|
|
|
+ return 1;
|
|
|
+ buf = &hw->ctrl_buff[hw->ctrl_in_idx];
|
|
|
+ buf->hfcs_reg = reg;
|
|
|
+ buf->reg_val = val;
|
|
|
+ if (++hw->ctrl_in_idx >= HFC_CTRL_BUFSIZE)
|
|
|
+ hw->ctrl_in_idx = 0;
|
|
|
+ if (++hw->ctrl_cnt == 1)
|
|
|
+ ctrl_start_transfer(hw);
|
|
|
+ spin_unlock(&hw->ctrl_lock);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/* control completion routine handling background control cmds */
|
|
|
+static void
|
|
|
+ctrl_complete(struct urb *urb)
|
|
|
+{
|
|
|
+ struct hfcsusb *hw = (struct hfcsusb *) urb->context;
|
|
|
+ struct ctrl_buf *buf;
|
|
|
+
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
|
|
|
+
|
|
|
+ urb->dev = hw->dev;
|
|
|
+ if (hw->ctrl_cnt) {
|
|
|
+ buf = &hw->ctrl_buff[hw->ctrl_out_idx];
|
|
|
+ hw->ctrl_cnt--; /* decrement actual count */
|
|
|
+ if (++hw->ctrl_out_idx >= HFC_CTRL_BUFSIZE)
|
|
|
+ hw->ctrl_out_idx = 0; /* pointer wrap */
|
|
|
+
|
|
|
+ ctrl_start_transfer(hw); /* start next transfer */
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/* handle LED bits */
|
|
|
+static void
|
|
|
+set_led_bit(struct hfcsusb *hw, signed short led_bits, int set_on)
|
|
|
+{
|
|
|
+ if (set_on) {
|
|
|
+ if (led_bits < 0)
|
|
|
+ hw->led_state &= ~abs(led_bits);
|
|
|
+ else
|
|
|
+ hw->led_state |= led_bits;
|
|
|
+ } else {
|
|
|
+ if (led_bits < 0)
|
|
|
+ hw->led_state |= abs(led_bits);
|
|
|
+ else
|
|
|
+ hw->led_state &= ~led_bits;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/* handle LED requests */
|
|
|
+static void
|
|
|
+handle_led(struct hfcsusb *hw, int event)
|
|
|
+{
|
|
|
+ struct hfcsusb_vdata *driver_info = (struct hfcsusb_vdata *)
|
|
|
+ hfcsusb_idtab[hw->vend_idx].driver_info;
|
|
|
+ __u8 tmpled;
|
|
|
+
|
|
|
+ if (driver_info->led_scheme == LED_OFF)
|
|
|
+ return;
|
|
|
+ tmpled = hw->led_state;
|
|
|
+
|
|
|
+ switch (event) {
|
|
|
+ case LED_POWER_ON:
|
|
|
+ set_led_bit(hw, driver_info->led_bits[0], 1);
|
|
|
+ set_led_bit(hw, driver_info->led_bits[1], 0);
|
|
|
+ set_led_bit(hw, driver_info->led_bits[2], 0);
|
|
|
+ set_led_bit(hw, driver_info->led_bits[3], 0);
|
|
|
+ break;
|
|
|
+ case LED_POWER_OFF:
|
|
|
+ set_led_bit(hw, driver_info->led_bits[0], 0);
|
|
|
+ set_led_bit(hw, driver_info->led_bits[1], 0);
|
|
|
+ set_led_bit(hw, driver_info->led_bits[2], 0);
|
|
|
+ set_led_bit(hw, driver_info->led_bits[3], 0);
|
|
|
+ break;
|
|
|
+ case LED_S0_ON:
|
|
|
+ set_led_bit(hw, driver_info->led_bits[1], 1);
|
|
|
+ break;
|
|
|
+ case LED_S0_OFF:
|
|
|
+ set_led_bit(hw, driver_info->led_bits[1], 0);
|
|
|
+ break;
|
|
|
+ case LED_B1_ON:
|
|
|
+ set_led_bit(hw, driver_info->led_bits[2], 1);
|
|
|
+ break;
|
|
|
+ case LED_B1_OFF:
|
|
|
+ set_led_bit(hw, driver_info->led_bits[2], 0);
|
|
|
+ break;
|
|
|
+ case LED_B2_ON:
|
|
|
+ set_led_bit(hw, driver_info->led_bits[3], 1);
|
|
|
+ break;
|
|
|
+ case LED_B2_OFF:
|
|
|
+ set_led_bit(hw, driver_info->led_bits[3], 0);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (hw->led_state != tmpled) {
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s reg(0x%02x) val(x%02x)\n",
|
|
|
+ hw->name, __func__,
|
|
|
+ HFCUSB_P_DATA, hw->led_state);
|
|
|
+
|
|
|
+ write_reg(hw, HFCUSB_P_DATA, hw->led_state);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * Layer2 -> Layer 1 Bchannel data
|
|
|
+ */
|
|
|
+static int
|
|
|
+hfcusb_l2l1B(struct mISDNchannel *ch, struct sk_buff *skb)
|
|
|
+{
|
|
|
+ struct bchannel *bch = container_of(ch, struct bchannel, ch);
|
|
|
+ struct hfcsusb *hw = bch->hw;
|
|
|
+ int ret = -EINVAL;
|
|
|
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
|
|
|
+ u_long flags;
|
|
|
+
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
|
|
|
+
|
|
|
+ switch (hh->prim) {
|
|
|
+ case PH_DATA_REQ:
|
|
|
+ spin_lock_irqsave(&hw->lock, flags);
|
|
|
+ ret = bchannel_senddata(bch, skb);
|
|
|
+ spin_unlock_irqrestore(&hw->lock, flags);
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s PH_DATA_REQ ret(%i)\n",
|
|
|
+ hw->name, __func__, ret);
|
|
|
+ if (ret > 0) {
|
|
|
+ /*
|
|
|
+ * other l1 drivers don't send early confirms on
|
|
|
+ * transp data, but hfcsusb does because tx_next
|
|
|
+ * skb is needed in tx_iso_complete()
|
|
|
+ */
|
|
|
+ queue_ch_frame(ch, PH_DATA_CNF, hh->id, NULL);
|
|
|
+ ret = 0;
|
|
|
+ }
|
|
|
+ return ret;
|
|
|
+ case PH_ACTIVATE_REQ:
|
|
|
+ if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags)) {
|
|
|
+ hfcsusb_start_endpoint(hw, bch->nr);
|
|
|
+ ret = hfcsusb_setup_bch(bch, ch->protocol);
|
|
|
+ } else
|
|
|
+ ret = 0;
|
|
|
+ if (!ret)
|
|
|
+ _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY,
|
|
|
+ 0, NULL, GFP_KERNEL);
|
|
|
+ break;
|
|
|
+ case PH_DEACTIVATE_REQ:
|
|
|
+ deactivate_bchannel(bch);
|
|
|
+ _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY,
|
|
|
+ 0, NULL, GFP_KERNEL);
|
|
|
+ ret = 0;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ if (!ret)
|
|
|
+ dev_kfree_skb(skb);
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * send full D/B channel status information
|
|
|
+ * as MPH_INFORMATION_IND
|
|
|
+ */
|
|
|
+static void
|
|
|
+hfcsusb_ph_info(struct hfcsusb *hw)
|
|
|
+{
|
|
|
+ struct ph_info *phi;
|
|
|
+ struct dchannel *dch = &hw->dch;
|
|
|
+ int i;
|
|
|
+
|
|
|
+ phi = kzalloc(sizeof(struct ph_info) +
|
|
|
+ dch->dev.nrbchan * sizeof(struct ph_info_ch), GFP_ATOMIC);
|
|
|
+ phi->dch.ch.protocol = hw->protocol;
|
|
|
+ phi->dch.ch.Flags = dch->Flags;
|
|
|
+ phi->dch.state = dch->state;
|
|
|
+ phi->dch.num_bch = dch->dev.nrbchan;
|
|
|
+ for (i = 0; i < dch->dev.nrbchan; i++) {
|
|
|
+ phi->bch[i].protocol = hw->bch[i].ch.protocol;
|
|
|
+ phi->bch[i].Flags = hw->bch[i].Flags;
|
|
|
+ }
|
|
|
+ _queue_data(&dch->dev.D, MPH_INFORMATION_IND, MISDN_ID_ANY,
|
|
|
+ sizeof(struct ph_info_dch) + dch->dev.nrbchan *
|
|
|
+ sizeof(struct ph_info_ch), phi, GFP_ATOMIC);
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * Layer2 -> Layer 1 Dchannel data
|
|
|
+ */
|
|
|
+static int
|
|
|
+hfcusb_l2l1D(struct mISDNchannel *ch, struct sk_buff *skb)
|
|
|
+{
|
|
|
+ struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
|
|
|
+ struct dchannel *dch = container_of(dev, struct dchannel, dev);
|
|
|
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
|
|
|
+ struct hfcsusb *hw = dch->hw;
|
|
|
+ int ret = -EINVAL;
|
|
|
+ u_long flags;
|
|
|
+
|
|
|
+ switch (hh->prim) {
|
|
|
+ case PH_DATA_REQ:
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s: PH_DATA_REQ\n",
|
|
|
+ hw->name, __func__);
|
|
|
+
|
|
|
+ spin_lock_irqsave(&hw->lock, flags);
|
|
|
+ ret = dchannel_senddata(dch, skb);
|
|
|
+ spin_unlock_irqrestore(&hw->lock, flags);
|
|
|
+ if (ret > 0) {
|
|
|
+ ret = 0;
|
|
|
+ queue_ch_frame(ch, PH_DATA_CNF, hh->id, NULL);
|
|
|
+ }
|
|
|
+ break;
|
|
|
+
|
|
|
+ case PH_ACTIVATE_REQ:
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s: PH_ACTIVATE_REQ %s\n",
|
|
|
+ hw->name, __func__,
|
|
|
+ (hw->protocol == ISDN_P_NT_S0) ? "NT" : "TE");
|
|
|
+
|
|
|
+ if (hw->protocol == ISDN_P_NT_S0) {
|
|
|
+ ret = 0;
|
|
|
+ if (test_bit(FLG_ACTIVE, &dch->Flags)) {
|
|
|
+ _queue_data(&dch->dev.D,
|
|
|
+ PH_ACTIVATE_IND, MISDN_ID_ANY, 0,
|
|
|
+ NULL, GFP_ATOMIC);
|
|
|
+ } else {
|
|
|
+ hfcsusb_ph_command(hw,
|
|
|
+ HFC_L1_ACTIVATE_NT);
|
|
|
+ test_and_set_bit(FLG_L2_ACTIVATED,
|
|
|
+ &dch->Flags);
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ hfcsusb_ph_command(hw, HFC_L1_ACTIVATE_TE);
|
|
|
+ ret = l1_event(dch->l1, hh->prim);
|
|
|
+ }
|
|
|
+ break;
|
|
|
+
|
|
|
+ case PH_DEACTIVATE_REQ:
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s: PH_DEACTIVATE_REQ\n",
|
|
|
+ hw->name, __func__);
|
|
|
+ test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags);
|
|
|
+
|
|
|
+ if (hw->protocol == ISDN_P_NT_S0) {
|
|
|
+ hfcsusb_ph_command(hw, HFC_L1_DEACTIVATE_NT);
|
|
|
+ spin_lock_irqsave(&hw->lock, flags);
|
|
|
+ skb_queue_purge(&dch->squeue);
|
|
|
+ if (dch->tx_skb) {
|
|
|
+ dev_kfree_skb(dch->tx_skb);
|
|
|
+ dch->tx_skb = NULL;
|
|
|
+ }
|
|
|
+ dch->tx_idx = 0;
|
|
|
+ if (dch->rx_skb) {
|
|
|
+ dev_kfree_skb(dch->rx_skb);
|
|
|
+ dch->rx_skb = NULL;
|
|
|
+ }
|
|
|
+ test_and_clear_bit(FLG_TX_BUSY, &dch->Flags);
|
|
|
+ spin_unlock_irqrestore(&hw->lock, flags);
|
|
|
+#ifdef FIXME
|
|
|
+ if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags))
|
|
|
+ dchannel_sched_event(&hc->dch, D_CLEARBUSY);
|
|
|
+#endif
|
|
|
+ ret = 0;
|
|
|
+ } else
|
|
|
+ ret = l1_event(dch->l1, hh->prim);
|
|
|
+ break;
|
|
|
+ case MPH_INFORMATION_REQ:
|
|
|
+ hfcsusb_ph_info(hw);
|
|
|
+ ret = 0;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * Layer 1 callback function
|
|
|
+ */
|
|
|
+static int
|
|
|
+hfc_l1callback(struct dchannel *dch, u_int cmd)
|
|
|
+{
|
|
|
+ struct hfcsusb *hw = dch->hw;
|
|
|
+
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s cmd 0x%x\n",
|
|
|
+ hw->name, __func__, cmd);
|
|
|
+
|
|
|
+ switch (cmd) {
|
|
|
+ case INFO3_P8:
|
|
|
+ case INFO3_P10:
|
|
|
+ case HW_RESET_REQ:
|
|
|
+ case HW_POWERUP_REQ:
|
|
|
+ break;
|
|
|
+
|
|
|
+ case HW_DEACT_REQ:
|
|
|
+ skb_queue_purge(&dch->squeue);
|
|
|
+ if (dch->tx_skb) {
|
|
|
+ dev_kfree_skb(dch->tx_skb);
|
|
|
+ dch->tx_skb = NULL;
|
|
|
+ }
|
|
|
+ dch->tx_idx = 0;
|
|
|
+ if (dch->rx_skb) {
|
|
|
+ dev_kfree_skb(dch->rx_skb);
|
|
|
+ dch->rx_skb = NULL;
|
|
|
+ }
|
|
|
+ test_and_clear_bit(FLG_TX_BUSY, &dch->Flags);
|
|
|
+ break;
|
|
|
+ case PH_ACTIVATE_IND:
|
|
|
+ test_and_set_bit(FLG_ACTIVE, &dch->Flags);
|
|
|
+ _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
|
|
|
+ GFP_ATOMIC);
|
|
|
+ break;
|
|
|
+ case PH_DEACTIVATE_IND:
|
|
|
+ test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
|
|
|
+ _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
|
|
|
+ GFP_ATOMIC);
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ if (dch->debug & DEBUG_HW)
|
|
|
+ printk(KERN_DEBUG "%s: %s: unknown cmd %x\n",
|
|
|
+ hw->name, __func__, cmd);
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+ hfcsusb_ph_info(hw);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+open_dchannel(struct hfcsusb *hw, struct mISDNchannel *ch,
|
|
|
+ struct channel_req *rq)
|
|
|
+{
|
|
|
+ int err = 0;
|
|
|
+
|
|
|
+ if (debug & DEBUG_HW_OPEN)
|
|
|
+ printk(KERN_DEBUG "%s: %s: dev(%d) open addr(%i) from %p\n",
|
|
|
+ hw->name, __func__, hw->dch.dev.id, rq->adr.channel,
|
|
|
+ __builtin_return_address(0));
|
|
|
+ if (rq->protocol == ISDN_P_NONE)
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+ test_and_clear_bit(FLG_ACTIVE, &hw->dch.Flags);
|
|
|
+ test_and_clear_bit(FLG_ACTIVE, &hw->ech.Flags);
|
|
|
+ hfcsusb_start_endpoint(hw, HFC_CHAN_D);
|
|
|
+
|
|
|
+ /* E-Channel logging */
|
|
|
+ if (rq->adr.channel == 1) {
|
|
|
+ if (hw->fifos[HFCUSB_PCM_RX].pipe) {
|
|
|
+ hfcsusb_start_endpoint(hw, HFC_CHAN_E);
|
|
|
+ set_bit(FLG_ACTIVE, &hw->ech.Flags);
|
|
|
+ _queue_data(&hw->ech.dev.D, PH_ACTIVATE_IND,
|
|
|
+ MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
|
|
|
+ } else
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!hw->initdone) {
|
|
|
+ hw->protocol = rq->protocol;
|
|
|
+ if (rq->protocol == ISDN_P_TE_S0) {
|
|
|
+ err = create_l1(&hw->dch, hfc_l1callback);
|
|
|
+ if (err)
|
|
|
+ return err;
|
|
|
+ }
|
|
|
+ setPortMode(hw);
|
|
|
+ ch->protocol = rq->protocol;
|
|
|
+ hw->initdone = 1;
|
|
|
+ } else {
|
|
|
+ if (rq->protocol != ch->protocol)
|
|
|
+ return -EPROTONOSUPPORT;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (((ch->protocol == ISDN_P_NT_S0) && (hw->dch.state == 3)) ||
|
|
|
+ ((ch->protocol == ISDN_P_TE_S0) && (hw->dch.state == 7)))
|
|
|
+ _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY,
|
|
|
+ 0, NULL, GFP_KERNEL);
|
|
|
+ rq->ch = ch;
|
|
|
+ if (!try_module_get(THIS_MODULE))
|
|
|
+ printk(KERN_WARNING "%s: %s: cannot get module\n",
|
|
|
+ hw->name, __func__);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+open_bchannel(struct hfcsusb *hw, struct channel_req *rq)
|
|
|
+{
|
|
|
+ struct bchannel *bch;
|
|
|
+
|
|
|
+ if (rq->adr.channel > 2)
|
|
|
+ return -EINVAL;
|
|
|
+ if (rq->protocol == ISDN_P_NONE)
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s B%i\n",
|
|
|
+ hw->name, __func__, rq->adr.channel);
|
|
|
+
|
|
|
+ bch = &hw->bch[rq->adr.channel - 1];
|
|
|
+ if (test_and_set_bit(FLG_OPEN, &bch->Flags))
|
|
|
+ return -EBUSY; /* b-channel can be only open once */
|
|
|
+ test_and_clear_bit(FLG_FILLEMPTY, &bch->Flags);
|
|
|
+ bch->ch.protocol = rq->protocol;
|
|
|
+ rq->ch = &bch->ch;
|
|
|
+
|
|
|
+ /* start USB endpoint for bchannel */
|
|
|
+ if (rq->adr.channel == 1)
|
|
|
+ hfcsusb_start_endpoint(hw, HFC_CHAN_B1);
|
|
|
+ else
|
|
|
+ hfcsusb_start_endpoint(hw, HFC_CHAN_B2);
|
|
|
+
|
|
|
+ if (!try_module_get(THIS_MODULE))
|
|
|
+ printk(KERN_WARNING "%s: %s:cannot get module\n",
|
|
|
+ hw->name, __func__);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+channel_ctrl(struct hfcsusb *hw, struct mISDN_ctrl_req *cq)
|
|
|
+{
|
|
|
+ int ret = 0;
|
|
|
+
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s op(0x%x) channel(0x%x)\n",
|
|
|
+ hw->name, __func__, (cq->op), (cq->channel));
|
|
|
+
|
|
|
+ switch (cq->op) {
|
|
|
+ case MISDN_CTRL_GETOP:
|
|
|
+ cq->op = MISDN_CTRL_LOOP | MISDN_CTRL_CONNECT |
|
|
|
+ MISDN_CTRL_DISCONNECT;
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ printk(KERN_WARNING "%s: %s: unknown Op %x\n",
|
|
|
+ hw->name, __func__, cq->op);
|
|
|
+ ret = -EINVAL;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * device control function
|
|
|
+ */
|
|
|
+static int
|
|
|
+hfc_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
|
|
|
+{
|
|
|
+ struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
|
|
|
+ struct dchannel *dch = container_of(dev, struct dchannel, dev);
|
|
|
+ struct hfcsusb *hw = dch->hw;
|
|
|
+ struct channel_req *rq;
|
|
|
+ int err = 0;
|
|
|
+
|
|
|
+ if (dch->debug & DEBUG_HW)
|
|
|
+ printk(KERN_DEBUG "%s: %s: cmd:%x %p\n",
|
|
|
+ hw->name, __func__, cmd, arg);
|
|
|
+ switch (cmd) {
|
|
|
+ case OPEN_CHANNEL:
|
|
|
+ rq = arg;
|
|
|
+ if ((rq->protocol == ISDN_P_TE_S0) ||
|
|
|
+ (rq->protocol == ISDN_P_NT_S0))
|
|
|
+ err = open_dchannel(hw, ch, rq);
|
|
|
+ else
|
|
|
+ err = open_bchannel(hw, rq);
|
|
|
+ if (!err)
|
|
|
+ hw->open++;
|
|
|
+ break;
|
|
|
+ case CLOSE_CHANNEL:
|
|
|
+ hw->open--;
|
|
|
+ if (debug & DEBUG_HW_OPEN)
|
|
|
+ printk(KERN_DEBUG
|
|
|
+ "%s: %s: dev(%d) close from %p (open %d)\n",
|
|
|
+ hw->name, __func__, hw->dch.dev.id,
|
|
|
+ __builtin_return_address(0), hw->open);
|
|
|
+ if (!hw->open) {
|
|
|
+ hfcsusb_stop_endpoint(hw, HFC_CHAN_D);
|
|
|
+ if (hw->fifos[HFCUSB_PCM_RX].pipe)
|
|
|
+ hfcsusb_stop_endpoint(hw, HFC_CHAN_E);
|
|
|
+ handle_led(hw, LED_POWER_ON);
|
|
|
+ }
|
|
|
+ module_put(THIS_MODULE);
|
|
|
+ break;
|
|
|
+ case CONTROL_CHANNEL:
|
|
|
+ err = channel_ctrl(hw, arg);
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ if (dch->debug & DEBUG_HW)
|
|
|
+ printk(KERN_DEBUG "%s: %s: unknown command %x\n",
|
|
|
+ hw->name, __func__, cmd);
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * S0 TE state change event handler
|
|
|
+ */
|
|
|
+static void
|
|
|
+ph_state_te(struct dchannel *dch)
|
|
|
+{
|
|
|
+ struct hfcsusb *hw = dch->hw;
|
|
|
+
|
|
|
+ if (debug & DEBUG_HW) {
|
|
|
+ if (dch->state <= HFC_MAX_TE_LAYER1_STATE)
|
|
|
+ printk(KERN_DEBUG "%s: %s: %s\n", hw->name, __func__,
|
|
|
+ HFC_TE_LAYER1_STATES[dch->state]);
|
|
|
+ else
|
|
|
+ printk(KERN_DEBUG "%s: %s: TE F%d\n",
|
|
|
+ hw->name, __func__, dch->state);
|
|
|
+ }
|
|
|
+
|
|
|
+ switch (dch->state) {
|
|
|
+ case 0:
|
|
|
+ l1_event(dch->l1, HW_RESET_IND);
|
|
|
+ break;
|
|
|
+ case 3:
|
|
|
+ l1_event(dch->l1, HW_DEACT_IND);
|
|
|
+ break;
|
|
|
+ case 5:
|
|
|
+ case 8:
|
|
|
+ l1_event(dch->l1, ANYSIGNAL);
|
|
|
+ break;
|
|
|
+ case 6:
|
|
|
+ l1_event(dch->l1, INFO2);
|
|
|
+ break;
|
|
|
+ case 7:
|
|
|
+ l1_event(dch->l1, INFO4_P8);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ if (dch->state == 7)
|
|
|
+ handle_led(hw, LED_S0_ON);
|
|
|
+ else
|
|
|
+ handle_led(hw, LED_S0_OFF);
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * S0 NT state change event handler
|
|
|
+ */
|
|
|
+static void
|
|
|
+ph_state_nt(struct dchannel *dch)
|
|
|
+{
|
|
|
+ struct hfcsusb *hw = dch->hw;
|
|
|
+
|
|
|
+ if (debug & DEBUG_HW) {
|
|
|
+ if (dch->state <= HFC_MAX_NT_LAYER1_STATE)
|
|
|
+ printk(KERN_DEBUG "%s: %s: %s\n",
|
|
|
+ hw->name, __func__,
|
|
|
+ HFC_NT_LAYER1_STATES[dch->state]);
|
|
|
+
|
|
|
+ else
|
|
|
+ printk(KERN_INFO DRIVER_NAME "%s: %s: NT G%d\n",
|
|
|
+ hw->name, __func__, dch->state);
|
|
|
+ }
|
|
|
+
|
|
|
+ switch (dch->state) {
|
|
|
+ case (1):
|
|
|
+ test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
|
|
|
+ test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags);
|
|
|
+ hw->nt_timer = 0;
|
|
|
+ hw->timers &= ~NT_ACTIVATION_TIMER;
|
|
|
+ handle_led(hw, LED_S0_OFF);
|
|
|
+ break;
|
|
|
+
|
|
|
+ case (2):
|
|
|
+ if (hw->nt_timer < 0) {
|
|
|
+ hw->nt_timer = 0;
|
|
|
+ hw->timers &= ~NT_ACTIVATION_TIMER;
|
|
|
+ hfcsusb_ph_command(dch->hw, HFC_L1_DEACTIVATE_NT);
|
|
|
+ } else {
|
|
|
+ hw->timers |= NT_ACTIVATION_TIMER;
|
|
|
+ hw->nt_timer = NT_T1_COUNT;
|
|
|
+ /* allow G2 -> G3 transition */
|
|
|
+ write_reg(hw, HFCUSB_STATES, 2 | HFCUSB_NT_G2_G3);
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ case (3):
|
|
|
+ hw->nt_timer = 0;
|
|
|
+ hw->timers &= ~NT_ACTIVATION_TIMER;
|
|
|
+ test_and_set_bit(FLG_ACTIVE, &dch->Flags);
|
|
|
+ _queue_data(&dch->dev.D, PH_ACTIVATE_IND,
|
|
|
+ MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
|
|
|
+ handle_led(hw, LED_S0_ON);
|
|
|
+ break;
|
|
|
+ case (4):
|
|
|
+ hw->nt_timer = 0;
|
|
|
+ hw->timers &= ~NT_ACTIVATION_TIMER;
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ hfcsusb_ph_info(hw);
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+ph_state(struct dchannel *dch)
|
|
|
+{
|
|
|
+ struct hfcsusb *hw = dch->hw;
|
|
|
+
|
|
|
+ if (hw->protocol == ISDN_P_NT_S0)
|
|
|
+ ph_state_nt(dch);
|
|
|
+ else if (hw->protocol == ISDN_P_TE_S0)
|
|
|
+ ph_state_te(dch);
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * disable/enable BChannel for desired protocoll
|
|
|
+ */
|
|
|
+static int
|
|
|
+hfcsusb_setup_bch(struct bchannel *bch, int protocol)
|
|
|
+{
|
|
|
+ struct hfcsusb *hw = bch->hw;
|
|
|
+ __u8 conhdlc, sctrl, sctrl_r;
|
|
|
+
|
|
|
+ if (debug & DEBUG_HW)
|
|
|
+ printk(KERN_DEBUG "%s: %s: protocol %x-->%x B%d\n",
|
|
|
+ hw->name, __func__, bch->state, protocol,
|
|
|
+ bch->nr);
|
|
|
+
|
|
|
+ /* setup val for CON_HDLC */
|
|
|
+ conhdlc = 0;
|
|
|
+ if (protocol > ISDN_P_NONE)
|
|
|
+ conhdlc = 8; /* enable FIFO */
|
|
|
+
|
|
|
+ switch (protocol) {
|
|
|
+ case (-1): /* used for init */
|
|
|
+ bch->state = -1;
|
|
|
+ /* fall trough */
|
|
|
+ case (ISDN_P_NONE):
|
|
|
+ if (bch->state == ISDN_P_NONE)
|
|
|
+ return 0; /* already in idle state */
|
|
|
+ bch->state = ISDN_P_NONE;
|
|
|
+ clear_bit(FLG_HDLC, &bch->Flags);
|
|
|
+ clear_bit(FLG_TRANSPARENT, &bch->Flags);
|
|
|
+ break;
|
|
|
+ case (ISDN_P_B_RAW):
|
|
|
+ conhdlc |= 2;
|
|
|
+ bch->state = protocol;
|
|
|
+ set_bit(FLG_TRANSPARENT, &bch->Flags);
|
|
|
+ break;
|
|
|
+ case (ISDN_P_B_HDLC):
|
|
|
+ bch->state = protocol;
|
|
|
+ set_bit(FLG_HDLC, &bch->Flags);
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ if (debug & DEBUG_HW)
|
|
|
+ printk(KERN_DEBUG "%s: %s: prot not known %x\n",
|
|
|
+ hw->name, __func__, protocol);
|
|
|
+ return -ENOPROTOOPT;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (protocol >= ISDN_P_NONE) {
|
|
|
+ write_reg(hw, HFCUSB_FIFO, (bch->nr == 1) ? 0 : 2);
|
|
|
+ write_reg(hw, HFCUSB_CON_HDLC, conhdlc);
|
|
|
+ write_reg(hw, HFCUSB_INC_RES_F, 2);
|
|
|
+ write_reg(hw, HFCUSB_FIFO, (bch->nr == 1) ? 1 : 3);
|
|
|
+ write_reg(hw, HFCUSB_CON_HDLC, conhdlc);
|
|
|
+ write_reg(hw, HFCUSB_INC_RES_F, 2);
|
|
|
+
|
|
|
+ sctrl = 0x40 + ((hw->protocol == ISDN_P_TE_S0) ? 0x00 : 0x04);
|
|
|
+ sctrl_r = 0x0;
|
|
|
+ if (test_bit(FLG_ACTIVE, &hw->bch[0].Flags)) {
|
|
|
+ sctrl |= 1;
|
|
|
+ sctrl_r |= 1;
|
|
|
+ }
|
|
|
+ if (test_bit(FLG_ACTIVE, &hw->bch[1].Flags)) {
|
|
|
+ sctrl |= 2;
|
|
|
+ sctrl_r |= 2;
|
|
|
+ }
|
|
|
+ write_reg(hw, HFCUSB_SCTRL, sctrl);
|
|
|
+ write_reg(hw, HFCUSB_SCTRL_R, sctrl_r);
|
|
|
+
|
|
|
+ if (protocol > ISDN_P_NONE)
|
|
|
+ handle_led(hw, (bch->nr == 1) ? LED_B1_ON : LED_B2_ON);
|
|
|
+ else
|
|
|
+ handle_led(hw, (bch->nr == 1) ? LED_B1_OFF :
|
|
|
+ LED_B2_OFF);
|
|
|
+ }
|
|
|
+ hfcsusb_ph_info(hw);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+hfcsusb_ph_command(struct hfcsusb *hw, u_char command)
|
|
|
+{
|
|
|
+ if (debug & DEBUG_HW)
|
|
|
+ printk(KERN_DEBUG "%s: %s: %x\n",
|
|
|
+ hw->name, __func__, command);
|
|
|
+
|
|
|
+ switch (command) {
|
|
|
+ case HFC_L1_ACTIVATE_TE:
|
|
|
+ /* force sending sending INFO1 */
|
|
|
+ write_reg(hw, HFCUSB_STATES, 0x14);
|
|
|
+ /* start l1 activation */
|
|
|
+ write_reg(hw, HFCUSB_STATES, 0x04);
|
|
|
+ break;
|
|
|
+
|
|
|
+ case HFC_L1_FORCE_DEACTIVATE_TE:
|
|
|
+ write_reg(hw, HFCUSB_STATES, 0x10);
|
|
|
+ write_reg(hw, HFCUSB_STATES, 0x03);
|
|
|
+ break;
|
|
|
+
|
|
|
+ case HFC_L1_ACTIVATE_NT:
|
|
|
+ if (hw->dch.state == 3)
|
|
|
+ _queue_data(&hw->dch.dev.D, PH_ACTIVATE_IND,
|
|
|
+ MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
|
|
|
+ else
|
|
|
+ write_reg(hw, HFCUSB_STATES, HFCUSB_ACTIVATE |
|
|
|
+ HFCUSB_DO_ACTION | HFCUSB_NT_G2_G3);
|
|
|
+ break;
|
|
|
+
|
|
|
+ case HFC_L1_DEACTIVATE_NT:
|
|
|
+ write_reg(hw, HFCUSB_STATES,
|
|
|
+ HFCUSB_DO_ACTION);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * Layer 1 B-channel hardware access
|
|
|
+ */
|
|
|
+static int
|
|
|
+channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq)
|
|
|
+{
|
|
|
+ int ret = 0;
|
|
|
+
|
|
|
+ switch (cq->op) {
|
|
|
+ case MISDN_CTRL_GETOP:
|
|
|
+ cq->op = MISDN_CTRL_FILL_EMPTY;
|
|
|
+ break;
|
|
|
+ case MISDN_CTRL_FILL_EMPTY: /* fill fifo, if empty */
|
|
|
+ test_and_set_bit(FLG_FILLEMPTY, &bch->Flags);
|
|
|
+ if (debug & DEBUG_HW_OPEN)
|
|
|
+ printk(KERN_DEBUG "%s: FILL_EMPTY request (nr=%d "
|
|
|
+ "off=%d)\n", __func__, bch->nr, !!cq->p1);
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ printk(KERN_WARNING "%s: unknown Op %x\n", __func__, cq->op);
|
|
|
+ ret = -EINVAL;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+/* collect data from incoming interrupt or isochron USB data */
|
|
|
+static void
|
|
|
+hfcsusb_rx_frame(struct usb_fifo *fifo, __u8 *data, unsigned int len,
|
|
|
+ int finish)
|
|
|
+{
|
|
|
+ struct hfcsusb *hw = fifo->hw;
|
|
|
+ struct sk_buff *rx_skb = NULL;
|
|
|
+ int maxlen = 0;
|
|
|
+ int fifon = fifo->fifonum;
|
|
|
+ int i;
|
|
|
+ int hdlc = 0;
|
|
|
+
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s: fifo(%i) len(%i) "
|
|
|
+ "dch(%p) bch(%p) ech(%p)\n",
|
|
|
+ hw->name, __func__, fifon, len,
|
|
|
+ fifo->dch, fifo->bch, fifo->ech);
|
|
|
+
|
|
|
+ if (!len)
|
|
|
+ return;
|
|
|
+
|
|
|
+ if ((!!fifo->dch + !!fifo->bch + !!fifo->ech) != 1) {
|
|
|
+ printk(KERN_DEBUG "%s: %s: undefined channel\n",
|
|
|
+ hw->name, __func__);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ spin_lock(&hw->lock);
|
|
|
+ if (fifo->dch) {
|
|
|
+ rx_skb = fifo->dch->rx_skb;
|
|
|
+ maxlen = fifo->dch->maxlen;
|
|
|
+ hdlc = 1;
|
|
|
+ }
|
|
|
+ if (fifo->bch) {
|
|
|
+ rx_skb = fifo->bch->rx_skb;
|
|
|
+ maxlen = fifo->bch->maxlen;
|
|
|
+ hdlc = test_bit(FLG_HDLC, &fifo->bch->Flags);
|
|
|
+ }
|
|
|
+ if (fifo->ech) {
|
|
|
+ rx_skb = fifo->ech->rx_skb;
|
|
|
+ maxlen = fifo->ech->maxlen;
|
|
|
+ hdlc = 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!rx_skb) {
|
|
|
+ rx_skb = mI_alloc_skb(maxlen, GFP_ATOMIC);
|
|
|
+ if (rx_skb) {
|
|
|
+ if (fifo->dch)
|
|
|
+ fifo->dch->rx_skb = rx_skb;
|
|
|
+ if (fifo->bch)
|
|
|
+ fifo->bch->rx_skb = rx_skb;
|
|
|
+ if (fifo->ech)
|
|
|
+ fifo->ech->rx_skb = rx_skb;
|
|
|
+ skb_trim(rx_skb, 0);
|
|
|
+ } else {
|
|
|
+ printk(KERN_DEBUG "%s: %s: No mem for rx_skb\n",
|
|
|
+ hw->name, __func__);
|
|
|
+ spin_unlock(&hw->lock);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (fifo->dch || fifo->ech) {
|
|
|
+ /* D/E-Channel SKB range check */
|
|
|
+ if ((rx_skb->len + len) >= MAX_DFRAME_LEN_L1) {
|
|
|
+ printk(KERN_DEBUG "%s: %s: sbk mem exceeded "
|
|
|
+ "for fifo(%d) HFCUSB_D_RX\n",
|
|
|
+ hw->name, __func__, fifon);
|
|
|
+ skb_trim(rx_skb, 0);
|
|
|
+ spin_unlock(&hw->lock);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ } else if (fifo->bch) {
|
|
|
+ /* B-Channel SKB range check */
|
|
|
+ if ((rx_skb->len + len) >= (MAX_BCH_SIZE + 3)) {
|
|
|
+ printk(KERN_DEBUG "%s: %s: sbk mem exceeded "
|
|
|
+ "for fifo(%d) HFCUSB_B_RX\n",
|
|
|
+ hw->name, __func__, fifon);
|
|
|
+ skb_trim(rx_skb, 0);
|
|
|
+ spin_unlock(&hw->lock);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ memcpy(skb_put(rx_skb, len), data, len);
|
|
|
+
|
|
|
+ if (hdlc) {
|
|
|
+ /* we have a complete hdlc packet */
|
|
|
+ if (finish) {
|
|
|
+ if ((rx_skb->len > 3) &&
|
|
|
+ (!(rx_skb->data[rx_skb->len - 1]))) {
|
|
|
+ if (debug & DBG_HFC_FIFO_VERBOSE) {
|
|
|
+ printk(KERN_DEBUG "%s: %s: fifon(%i)"
|
|
|
+ " new RX len(%i): ",
|
|
|
+ hw->name, __func__, fifon,
|
|
|
+ rx_skb->len);
|
|
|
+ i = 0;
|
|
|
+ while (i < rx_skb->len)
|
|
|
+ printk("%02x ",
|
|
|
+ rx_skb->data[i++]);
|
|
|
+ printk("\n");
|
|
|
+ }
|
|
|
+
|
|
|
+ /* remove CRC & status */
|
|
|
+ skb_trim(rx_skb, rx_skb->len - 3);
|
|
|
+
|
|
|
+ if (fifo->dch)
|
|
|
+ recv_Dchannel(fifo->dch);
|
|
|
+ if (fifo->bch)
|
|
|
+ recv_Bchannel(fifo->bch);
|
|
|
+ if (fifo->ech)
|
|
|
+ recv_Echannel(fifo->ech,
|
|
|
+ &hw->dch);
|
|
|
+ } else {
|
|
|
+ if (debug & DBG_HFC_FIFO_VERBOSE) {
|
|
|
+ printk(KERN_DEBUG
|
|
|
+ "%s: CRC or minlen ERROR fifon(%i) "
|
|
|
+ "RX len(%i): ",
|
|
|
+ hw->name, fifon, rx_skb->len);
|
|
|
+ i = 0;
|
|
|
+ while (i < rx_skb->len)
|
|
|
+ printk("%02x ",
|
|
|
+ rx_skb->data[i++]);
|
|
|
+ printk("\n");
|
|
|
+ }
|
|
|
+ skb_trim(rx_skb, 0);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ /* deliver transparent data to layer2 */
|
|
|
+ if (rx_skb->len >= poll)
|
|
|
+ recv_Bchannel(fifo->bch);
|
|
|
+ }
|
|
|
+ spin_unlock(&hw->lock);
|
|
|
+}
|
|
|
+
|
|
|
+void
|
|
|
+fill_isoc_urb(struct urb *urb, struct usb_device *dev, unsigned int pipe,
|
|
|
+ void *buf, int num_packets, int packet_size, int interval,
|
|
|
+ usb_complete_t complete, void *context)
|
|
|
+{
|
|
|
+ int k;
|
|
|
+
|
|
|
+ usb_fill_bulk_urb(urb, dev, pipe, buf, packet_size * num_packets,
|
|
|
+ complete, context);
|
|
|
+
|
|
|
+ urb->number_of_packets = num_packets;
|
|
|
+ urb->transfer_flags = URB_ISO_ASAP;
|
|
|
+ urb->actual_length = 0;
|
|
|
+ urb->interval = interval;
|
|
|
+
|
|
|
+ for (k = 0; k < num_packets; k++) {
|
|
|
+ urb->iso_frame_desc[k].offset = packet_size * k;
|
|
|
+ urb->iso_frame_desc[k].length = packet_size;
|
|
|
+ urb->iso_frame_desc[k].actual_length = 0;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/* receive completion routine for all ISO tx fifos */
|
|
|
+static void
|
|
|
+rx_iso_complete(struct urb *urb)
|
|
|
+{
|
|
|
+ struct iso_urb *context_iso_urb = (struct iso_urb *) urb->context;
|
|
|
+ struct usb_fifo *fifo = context_iso_urb->owner_fifo;
|
|
|
+ struct hfcsusb *hw = fifo->hw;
|
|
|
+ int k, len, errcode, offset, num_isoc_packets, fifon, maxlen,
|
|
|
+ status, iso_status, i;
|
|
|
+ __u8 *buf;
|
|
|
+ static __u8 eof[8];
|
|
|
+ __u8 s0_state;
|
|
|
+
|
|
|
+ fifon = fifo->fifonum;
|
|
|
+ status = urb->status;
|
|
|
+
|
|
|
+ spin_lock(&hw->lock);
|
|
|
+ if (fifo->stop_gracefull) {
|
|
|
+ fifo->stop_gracefull = 0;
|
|
|
+ fifo->active = 0;
|
|
|
+ spin_unlock(&hw->lock);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ spin_unlock(&hw->lock);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * ISO transfer only partially completed,
|
|
|
+ * look at individual frame status for details
|
|
|
+ */
|
|
|
+ if (status == -EXDEV) {
|
|
|
+ if (debug & DEBUG_HW)
|
|
|
+ printk(KERN_DEBUG "%s: %s: with -EXDEV "
|
|
|
+ "urb->status %d, fifonum %d\n",
|
|
|
+ hw->name, __func__, status, fifon);
|
|
|
+
|
|
|
+ /* clear status, so go on with ISO transfers */
|
|
|
+ status = 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ s0_state = 0;
|
|
|
+ if (fifo->active && !status) {
|
|
|
+ num_isoc_packets = iso_packets[fifon];
|
|
|
+ maxlen = fifo->usb_packet_maxlen;
|
|
|
+
|
|
|
+ for (k = 0; k < num_isoc_packets; ++k) {
|
|
|
+ len = urb->iso_frame_desc[k].actual_length;
|
|
|
+ offset = urb->iso_frame_desc[k].offset;
|
|
|
+ buf = context_iso_urb->buffer + offset;
|
|
|
+ iso_status = urb->iso_frame_desc[k].status;
|
|
|
+
|
|
|
+ if (iso_status && (debug & DBG_HFC_FIFO_VERBOSE)) {
|
|
|
+ printk(KERN_DEBUG "%s: %s: "
|
|
|
+ "ISO packet %i, status: %i\n",
|
|
|
+ hw->name, __func__, k, iso_status);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* USB data log for every D ISO in */
|
|
|
+ if ((fifon == HFCUSB_D_RX) &&
|
|
|
+ (debug & DBG_HFC_USB_VERBOSE)) {
|
|
|
+ printk(KERN_DEBUG
|
|
|
+ "%s: %s: %d (%d/%d) len(%d) ",
|
|
|
+ hw->name, __func__, urb->start_frame,
|
|
|
+ k, num_isoc_packets-1,
|
|
|
+ len);
|
|
|
+ for (i = 0; i < len; i++)
|
|
|
+ printk("%x ", buf[i]);
|
|
|
+ printk("\n");
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!iso_status) {
|
|
|
+ if (fifo->last_urblen != maxlen) {
|
|
|
+ /*
|
|
|
+ * save fifo fill-level threshold bits
|
|
|
+ * to use them later in TX ISO URB
|
|
|
+ * completions
|
|
|
+ */
|
|
|
+ hw->threshold_mask = buf[1];
|
|
|
+
|
|
|
+ if (fifon == HFCUSB_D_RX)
|
|
|
+ s0_state = (buf[0] >> 4);
|
|
|
+
|
|
|
+ eof[fifon] = buf[0] & 1;
|
|
|
+ if (len > 2)
|
|
|
+ hfcsusb_rx_frame(fifo, buf + 2,
|
|
|
+ len - 2, (len < maxlen)
|
|
|
+ ? eof[fifon] : 0);
|
|
|
+ } else
|
|
|
+ hfcsusb_rx_frame(fifo, buf, len,
|
|
|
+ (len < maxlen) ?
|
|
|
+ eof[fifon] : 0);
|
|
|
+ fifo->last_urblen = len;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* signal S0 layer1 state change */
|
|
|
+ if ((s0_state) && (hw->initdone) &&
|
|
|
+ (s0_state != hw->dch.state)) {
|
|
|
+ hw->dch.state = s0_state;
|
|
|
+ schedule_event(&hw->dch, FLG_PHCHANGE);
|
|
|
+ }
|
|
|
+
|
|
|
+ fill_isoc_urb(urb, fifo->hw->dev, fifo->pipe,
|
|
|
+ context_iso_urb->buffer, num_isoc_packets,
|
|
|
+ fifo->usb_packet_maxlen, fifo->intervall,
|
|
|
+ (usb_complete_t)rx_iso_complete, urb->context);
|
|
|
+ errcode = usb_submit_urb(urb, GFP_ATOMIC);
|
|
|
+ if (errcode < 0) {
|
|
|
+ if (debug & DEBUG_HW)
|
|
|
+ printk(KERN_DEBUG "%s: %s: error submitting "
|
|
|
+ "ISO URB: %d\n",
|
|
|
+ hw->name, __func__, errcode);
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ if (status && (debug & DBG_HFC_URB_INFO))
|
|
|
+ printk(KERN_DEBUG "%s: %s: rx_iso_complete : "
|
|
|
+ "urb->status %d, fifonum %d\n",
|
|
|
+ hw->name, __func__, status, fifon);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/* receive completion routine for all interrupt rx fifos */
|
|
|
+static void
|
|
|
+rx_int_complete(struct urb *urb)
|
|
|
+{
|
|
|
+ int len, status, i;
|
|
|
+ __u8 *buf, maxlen, fifon;
|
|
|
+ struct usb_fifo *fifo = (struct usb_fifo *) urb->context;
|
|
|
+ struct hfcsusb *hw = fifo->hw;
|
|
|
+ static __u8 eof[8];
|
|
|
+
|
|
|
+ spin_lock(&hw->lock);
|
|
|
+ if (fifo->stop_gracefull) {
|
|
|
+ fifo->stop_gracefull = 0;
|
|
|
+ fifo->active = 0;
|
|
|
+ spin_unlock(&hw->lock);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ spin_unlock(&hw->lock);
|
|
|
+
|
|
|
+ fifon = fifo->fifonum;
|
|
|
+ if ((!fifo->active) || (urb->status)) {
|
|
|
+ if (debug & DBG_HFC_URB_ERROR)
|
|
|
+ printk(KERN_DEBUG
|
|
|
+ "%s: %s: RX-Fifo %i is going down (%i)\n",
|
|
|
+ hw->name, __func__, fifon, urb->status);
|
|
|
+
|
|
|
+ fifo->urb->interval = 0; /* cancel automatic rescheduling */
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ len = urb->actual_length;
|
|
|
+ buf = fifo->buffer;
|
|
|
+ maxlen = fifo->usb_packet_maxlen;
|
|
|
+
|
|
|
+ /* USB data log for every D INT in */
|
|
|
+ if ((fifon == HFCUSB_D_RX) && (debug & DBG_HFC_USB_VERBOSE)) {
|
|
|
+ printk(KERN_DEBUG "%s: %s: D RX INT len(%d) ",
|
|
|
+ hw->name, __func__, len);
|
|
|
+ for (i = 0; i < len; i++)
|
|
|
+ printk("%02x ", buf[i]);
|
|
|
+ printk("\n");
|
|
|
+ }
|
|
|
+
|
|
|
+ if (fifo->last_urblen != fifo->usb_packet_maxlen) {
|
|
|
+ /* the threshold mask is in the 2nd status byte */
|
|
|
+ hw->threshold_mask = buf[1];
|
|
|
+
|
|
|
+ /* signal S0 layer1 state change */
|
|
|
+ if (hw->initdone && ((buf[0] >> 4) != hw->dch.state)) {
|
|
|
+ hw->dch.state = (buf[0] >> 4);
|
|
|
+ schedule_event(&hw->dch, FLG_PHCHANGE);
|
|
|
+ }
|
|
|
+
|
|
|
+ eof[fifon] = buf[0] & 1;
|
|
|
+ /* if we have more than the 2 status bytes -> collect data */
|
|
|
+ if (len > 2)
|
|
|
+ hfcsusb_rx_frame(fifo, buf + 2,
|
|
|
+ urb->actual_length - 2,
|
|
|
+ (len < maxlen) ? eof[fifon] : 0);
|
|
|
+ } else {
|
|
|
+ hfcsusb_rx_frame(fifo, buf, urb->actual_length,
|
|
|
+ (len < maxlen) ? eof[fifon] : 0);
|
|
|
+ }
|
|
|
+ fifo->last_urblen = urb->actual_length;
|
|
|
+
|
|
|
+ status = usb_submit_urb(urb, GFP_ATOMIC);
|
|
|
+ if (status) {
|
|
|
+ if (debug & DEBUG_HW)
|
|
|
+ printk(KERN_DEBUG "%s: %s: error resubmitting USB\n",
|
|
|
+ hw->name, __func__);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/* transmit completion routine for all ISO tx fifos */
|
|
|
+static void
|
|
|
+tx_iso_complete(struct urb *urb)
|
|
|
+{
|
|
|
+ struct iso_urb *context_iso_urb = (struct iso_urb *) urb->context;
|
|
|
+ struct usb_fifo *fifo = context_iso_urb->owner_fifo;
|
|
|
+ struct hfcsusb *hw = fifo->hw;
|
|
|
+ struct sk_buff *tx_skb;
|
|
|
+ int k, tx_offset, num_isoc_packets, sink, remain, current_len,
|
|
|
+ errcode, hdlc, i;
|
|
|
+ int *tx_idx;
|
|
|
+ int frame_complete, fifon, status;
|
|
|
+ __u8 threshbit;
|
|
|
+
|
|
|
+ spin_lock(&hw->lock);
|
|
|
+ if (fifo->stop_gracefull) {
|
|
|
+ fifo->stop_gracefull = 0;
|
|
|
+ fifo->active = 0;
|
|
|
+ spin_unlock(&hw->lock);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (fifo->dch) {
|
|
|
+ tx_skb = fifo->dch->tx_skb;
|
|
|
+ tx_idx = &fifo->dch->tx_idx;
|
|
|
+ hdlc = 1;
|
|
|
+ } else if (fifo->bch) {
|
|
|
+ tx_skb = fifo->bch->tx_skb;
|
|
|
+ tx_idx = &fifo->bch->tx_idx;
|
|
|
+ hdlc = test_bit(FLG_HDLC, &fifo->bch->Flags);
|
|
|
+ } else {
|
|
|
+ printk(KERN_DEBUG "%s: %s: neither BCH nor DCH\n",
|
|
|
+ hw->name, __func__);
|
|
|
+ spin_unlock(&hw->lock);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ fifon = fifo->fifonum;
|
|
|
+ status = urb->status;
|
|
|
+
|
|
|
+ tx_offset = 0;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * ISO transfer only partially completed,
|
|
|
+ * look at individual frame status for details
|
|
|
+ */
|
|
|
+ if (status == -EXDEV) {
|
|
|
+ if (debug & DBG_HFC_URB_ERROR)
|
|
|
+ printk(KERN_DEBUG "%s: %s: "
|
|
|
+ "-EXDEV (%i) fifon (%d)\n",
|
|
|
+ hw->name, __func__, status, fifon);
|
|
|
+
|
|
|
+ /* clear status, so go on with ISO transfers */
|
|
|
+ status = 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (fifo->active && !status) {
|
|
|
+ /* is FifoFull-threshold set for our channel? */
|
|
|
+ threshbit = (hw->threshold_mask & (1 << fifon));
|
|
|
+ num_isoc_packets = iso_packets[fifon];
|
|
|
+
|
|
|
+ /* predict dataflow to avoid fifo overflow */
|
|
|
+ if (fifon >= HFCUSB_D_TX)
|
|
|
+ sink = (threshbit) ? SINK_DMIN : SINK_DMAX;
|
|
|
+ else
|
|
|
+ sink = (threshbit) ? SINK_MIN : SINK_MAX;
|
|
|
+ fill_isoc_urb(urb, fifo->hw->dev, fifo->pipe,
|
|
|
+ context_iso_urb->buffer, num_isoc_packets,
|
|
|
+ fifo->usb_packet_maxlen, fifo->intervall,
|
|
|
+ (usb_complete_t)tx_iso_complete, urb->context);
|
|
|
+ memset(context_iso_urb->buffer, 0,
|
|
|
+ sizeof(context_iso_urb->buffer));
|
|
|
+ frame_complete = 0;
|
|
|
+
|
|
|
+ for (k = 0; k < num_isoc_packets; ++k) {
|
|
|
+ /* analyze tx success of previous ISO packets */
|
|
|
+ if (debug & DBG_HFC_URB_ERROR) {
|
|
|
+ errcode = urb->iso_frame_desc[k].status;
|
|
|
+ if (errcode) {
|
|
|
+ printk(KERN_DEBUG "%s: %s: "
|
|
|
+ "ISO packet %i, status: %i\n",
|
|
|
+ hw->name, __func__, k, errcode);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Generate next ISO Packets */
|
|
|
+ if (tx_skb)
|
|
|
+ remain = tx_skb->len - *tx_idx;
|
|
|
+ else
|
|
|
+ remain = 0;
|
|
|
+
|
|
|
+ if (remain > 0) {
|
|
|
+ fifo->bit_line -= sink;
|
|
|
+ current_len = (0 - fifo->bit_line) / 8;
|
|
|
+ if (current_len > 14)
|
|
|
+ current_len = 14;
|
|
|
+ if (current_len < 0)
|
|
|
+ current_len = 0;
|
|
|
+ if (remain < current_len)
|
|
|
+ current_len = remain;
|
|
|
+
|
|
|
+ /* how much bit do we put on the line? */
|
|
|
+ fifo->bit_line += current_len * 8;
|
|
|
+
|
|
|
+ context_iso_urb->buffer[tx_offset] = 0;
|
|
|
+ if (current_len == remain) {
|
|
|
+ if (hdlc) {
|
|
|
+ /* signal frame completion */
|
|
|
+ context_iso_urb->
|
|
|
+ buffer[tx_offset] = 1;
|
|
|
+ /* add 2 byte flags and 16bit
|
|
|
+ * CRC at end of ISDN frame */
|
|
|
+ fifo->bit_line += 32;
|
|
|
+ }
|
|
|
+ frame_complete = 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* copy tx data to iso-urb buffer */
|
|
|
+ memcpy(context_iso_urb->buffer + tx_offset + 1,
|
|
|
+ (tx_skb->data + *tx_idx), current_len);
|
|
|
+ *tx_idx += current_len;
|
|
|
+
|
|
|
+ urb->iso_frame_desc[k].offset = tx_offset;
|
|
|
+ urb->iso_frame_desc[k].length = current_len + 1;
|
|
|
+
|
|
|
+ /* USB data log for every D ISO out */
|
|
|
+ if ((fifon == HFCUSB_D_RX) &&
|
|
|
+ (debug & DBG_HFC_USB_VERBOSE)) {
|
|
|
+ printk(KERN_DEBUG
|
|
|
+ "%s: %s (%d/%d) offs(%d) len(%d) ",
|
|
|
+ hw->name, __func__,
|
|
|
+ k, num_isoc_packets-1,
|
|
|
+ urb->iso_frame_desc[k].offset,
|
|
|
+ urb->iso_frame_desc[k].length);
|
|
|
+
|
|
|
+ for (i = urb->iso_frame_desc[k].offset;
|
|
|
+ i < (urb->iso_frame_desc[k].offset
|
|
|
+ + urb->iso_frame_desc[k].length);
|
|
|
+ i++)
|
|
|
+ printk("%x ",
|
|
|
+ context_iso_urb->buffer[i]);
|
|
|
+
|
|
|
+ printk(" skb->len(%i) tx-idx(%d)\n",
|
|
|
+ tx_skb->len, *tx_idx);
|
|
|
+ }
|
|
|
+
|
|
|
+ tx_offset += (current_len + 1);
|
|
|
+ } else {
|
|
|
+ urb->iso_frame_desc[k].offset = tx_offset++;
|
|
|
+ urb->iso_frame_desc[k].length = 1;
|
|
|
+ /* we lower data margin every msec */
|
|
|
+ fifo->bit_line -= sink;
|
|
|
+ if (fifo->bit_line < BITLINE_INF)
|
|
|
+ fifo->bit_line = BITLINE_INF;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (frame_complete) {
|
|
|
+ frame_complete = 0;
|
|
|
+
|
|
|
+ if (debug & DBG_HFC_FIFO_VERBOSE) {
|
|
|
+ printk(KERN_DEBUG "%s: %s: "
|
|
|
+ "fifon(%i) new TX len(%i): ",
|
|
|
+ hw->name, __func__,
|
|
|
+ fifon, tx_skb->len);
|
|
|
+ i = 0;
|
|
|
+ while (i < tx_skb->len)
|
|
|
+ printk("%02x ",
|
|
|
+ tx_skb->data[i++]);
|
|
|
+ printk("\n");
|
|
|
+ }
|
|
|
+
|
|
|
+ dev_kfree_skb(tx_skb);
|
|
|
+ tx_skb = NULL;
|
|
|
+ if (fifo->dch && get_next_dframe(fifo->dch))
|
|
|
+ tx_skb = fifo->dch->tx_skb;
|
|
|
+ else if (fifo->bch &&
|
|
|
+ get_next_bframe(fifo->bch)) {
|
|
|
+ if (test_bit(FLG_TRANSPARENT,
|
|
|
+ &fifo->bch->Flags))
|
|
|
+ confirm_Bsend(fifo->bch);
|
|
|
+ tx_skb = fifo->bch->tx_skb;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ errcode = usb_submit_urb(urb, GFP_ATOMIC);
|
|
|
+ if (errcode < 0) {
|
|
|
+ if (debug & DEBUG_HW)
|
|
|
+ printk(KERN_DEBUG
|
|
|
+ "%s: %s: error submitting ISO URB: %d \n",
|
|
|
+ hw->name, __func__, errcode);
|
|
|
+ }
|
|
|
+
|
|
|
+ /*
|
|
|
+ * abuse DChannel tx iso completion to trigger NT mode state
|
|
|
+ * changes tx_iso_complete is assumed to be called every
|
|
|
+ * fifo->intervall (ms)
|
|
|
+ */
|
|
|
+ if ((fifon == HFCUSB_D_TX) && (hw->protocol == ISDN_P_NT_S0)
|
|
|
+ && (hw->timers & NT_ACTIVATION_TIMER)) {
|
|
|
+ if ((--hw->nt_timer) < 0)
|
|
|
+ schedule_event(&hw->dch, FLG_PHCHANGE);
|
|
|
+ }
|
|
|
+
|
|
|
+ } else {
|
|
|
+ if (status && (debug & DBG_HFC_URB_ERROR))
|
|
|
+ printk(KERN_DEBUG "%s: %s: urb->status %s (%i)"
|
|
|
+ "fifonum=%d\n",
|
|
|
+ hw->name, __func__,
|
|
|
+ symbolic(urb_errlist, status), status, fifon);
|
|
|
+ }
|
|
|
+ spin_unlock(&hw->lock);
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * allocs urbs and start isoc transfer with two pending urbs to avoid
|
|
|
+ * gaps in the transfer chain
|
|
|
+ */
|
|
|
+static int
|
|
|
+start_isoc_chain(struct usb_fifo *fifo, int num_packets_per_urb,
|
|
|
+ usb_complete_t complete, int packet_size)
|
|
|
+{
|
|
|
+ struct hfcsusb *hw = fifo->hw;
|
|
|
+ int i, k, errcode;
|
|
|
+
|
|
|
+ if (debug)
|
|
|
+ printk(KERN_DEBUG "%s: %s: fifo %i\n",
|
|
|
+ hw->name, __func__, fifo->fifonum);
|
|
|
+
|
|
|
+ /* allocate Memory for Iso out Urbs */
|
|
|
+ for (i = 0; i < 2; i++) {
|
|
|
+ if (!(fifo->iso[i].urb)) {
|
|
|
+ fifo->iso[i].urb =
|
|
|
+ usb_alloc_urb(num_packets_per_urb, GFP_KERNEL);
|
|
|
+ if (!(fifo->iso[i].urb)) {
|
|
|
+ printk(KERN_DEBUG
|
|
|
+ "%s: %s: alloc urb for fifo %i failed",
|
|
|
+ hw->name, __func__, fifo->fifonum);
|
|
|
+ }
|
|
|
+ fifo->iso[i].owner_fifo = (struct usb_fifo *) fifo;
|
|
|
+ fifo->iso[i].indx = i;
|
|
|
+
|
|
|
+ /* Init the first iso */
|
|
|
+ if (ISO_BUFFER_SIZE >=
|
|
|
+ (fifo->usb_packet_maxlen *
|
|
|
+ num_packets_per_urb)) {
|
|
|
+ fill_isoc_urb(fifo->iso[i].urb,
|
|
|
+ fifo->hw->dev, fifo->pipe,
|
|
|
+ fifo->iso[i].buffer,
|
|
|
+ num_packets_per_urb,
|
|
|
+ fifo->usb_packet_maxlen,
|
|
|
+ fifo->intervall, complete,
|
|
|
+ &fifo->iso[i]);
|
|
|
+ memset(fifo->iso[i].buffer, 0,
|
|
|
+ sizeof(fifo->iso[i].buffer));
|
|
|
+
|
|
|
+ for (k = 0; k < num_packets_per_urb; k++) {
|
|
|
+ fifo->iso[i].urb->
|
|
|
+ iso_frame_desc[k].offset =
|
|
|
+ k * packet_size;
|
|
|
+ fifo->iso[i].urb->
|
|
|
+ iso_frame_desc[k].length =
|
|
|
+ packet_size;
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ printk(KERN_DEBUG
|
|
|
+ "%s: %s: ISO Buffer size to small!\n",
|
|
|
+ hw->name, __func__);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ fifo->bit_line = BITLINE_INF;
|
|
|
+
|
|
|
+ errcode = usb_submit_urb(fifo->iso[i].urb, GFP_KERNEL);
|
|
|
+ fifo->active = (errcode >= 0) ? 1 : 0;
|
|
|
+ fifo->stop_gracefull = 0;
|
|
|
+ if (errcode < 0) {
|
|
|
+ printk(KERN_DEBUG "%s: %s: %s URB nr:%d\n",
|
|
|
+ hw->name, __func__,
|
|
|
+ symbolic(urb_errlist, errcode), i);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return fifo->active;
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+stop_iso_gracefull(struct usb_fifo *fifo)
|
|
|
+{
|
|
|
+ struct hfcsusb *hw = fifo->hw;
|
|
|
+ int i, timeout;
|
|
|
+ u_long flags;
|
|
|
+
|
|
|
+ for (i = 0; i < 2; i++) {
|
|
|
+ spin_lock_irqsave(&hw->lock, flags);
|
|
|
+ if (debug)
|
|
|
+ printk(KERN_DEBUG "%s: %s for fifo %i.%i\n",
|
|
|
+ hw->name, __func__, fifo->fifonum, i);
|
|
|
+ fifo->stop_gracefull = 1;
|
|
|
+ spin_unlock_irqrestore(&hw->lock, flags);
|
|
|
+ }
|
|
|
+
|
|
|
+ for (i = 0; i < 2; i++) {
|
|
|
+ timeout = 3;
|
|
|
+ while (fifo->stop_gracefull && timeout--)
|
|
|
+ schedule_timeout_interruptible((HZ/1000)*16);
|
|
|
+ if (debug && fifo->stop_gracefull)
|
|
|
+ printk(KERN_DEBUG "%s: ERROR %s for fifo %i.%i\n",
|
|
|
+ hw->name, __func__, fifo->fifonum, i);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+stop_int_gracefull(struct usb_fifo *fifo)
|
|
|
+{
|
|
|
+ struct hfcsusb *hw = fifo->hw;
|
|
|
+ int timeout;
|
|
|
+ u_long flags;
|
|
|
+
|
|
|
+ spin_lock_irqsave(&hw->lock, flags);
|
|
|
+ if (debug)
|
|
|
+ printk(KERN_DEBUG "%s: %s for fifo %i\n",
|
|
|
+ hw->name, __func__, fifo->fifonum);
|
|
|
+ fifo->stop_gracefull = 1;
|
|
|
+ spin_unlock_irqrestore(&hw->lock, flags);
|
|
|
+
|
|
|
+ timeout = 3;
|
|
|
+ while (fifo->stop_gracefull && timeout--)
|
|
|
+ schedule_timeout_interruptible((HZ/1000)*3);
|
|
|
+ if (debug && fifo->stop_gracefull)
|
|
|
+ printk(KERN_DEBUG "%s: ERROR %s for fifo %i\n",
|
|
|
+ hw->name, __func__, fifo->fifonum);
|
|
|
+}
|
|
|
+
|
|
|
+/* start the interrupt transfer for the given fifo */
|
|
|
+static void
|
|
|
+start_int_fifo(struct usb_fifo *fifo)
|
|
|
+{
|
|
|
+ struct hfcsusb *hw = fifo->hw;
|
|
|
+ int errcode;
|
|
|
+
|
|
|
+ if (debug)
|
|
|
+ printk(KERN_DEBUG "%s: %s: INT IN fifo:%d\n",
|
|
|
+ hw->name, __func__, fifo->fifonum);
|
|
|
+
|
|
|
+ if (!fifo->urb) {
|
|
|
+ fifo->urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
|
+ if (!fifo->urb)
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ usb_fill_int_urb(fifo->urb, fifo->hw->dev, fifo->pipe,
|
|
|
+ fifo->buffer, fifo->usb_packet_maxlen,
|
|
|
+ (usb_complete_t)rx_int_complete, fifo, fifo->intervall);
|
|
|
+ fifo->active = 1;
|
|
|
+ fifo->stop_gracefull = 0;
|
|
|
+ errcode = usb_submit_urb(fifo->urb, GFP_KERNEL);
|
|
|
+ if (errcode) {
|
|
|
+ printk(KERN_DEBUG "%s: %s: submit URB: status:%i\n",
|
|
|
+ hw->name, __func__, errcode);
|
|
|
+ fifo->active = 0;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+setPortMode(struct hfcsusb *hw)
|
|
|
+{
|
|
|
+ if (debug & DEBUG_HW)
|
|
|
+ printk(KERN_DEBUG "%s: %s %s\n", hw->name, __func__,
|
|
|
+ (hw->protocol == ISDN_P_TE_S0) ? "TE" : "NT");
|
|
|
+
|
|
|
+ if (hw->protocol == ISDN_P_TE_S0) {
|
|
|
+ write_reg(hw, HFCUSB_SCTRL, 0x40);
|
|
|
+ write_reg(hw, HFCUSB_SCTRL_E, 0x00);
|
|
|
+ write_reg(hw, HFCUSB_CLKDEL, CLKDEL_TE);
|
|
|
+ write_reg(hw, HFCUSB_STATES, 3 | 0x10);
|
|
|
+ write_reg(hw, HFCUSB_STATES, 3);
|
|
|
+ } else {
|
|
|
+ write_reg(hw, HFCUSB_SCTRL, 0x44);
|
|
|
+ write_reg(hw, HFCUSB_SCTRL_E, 0x09);
|
|
|
+ write_reg(hw, HFCUSB_CLKDEL, CLKDEL_NT);
|
|
|
+ write_reg(hw, HFCUSB_STATES, 1 | 0x10);
|
|
|
+ write_reg(hw, HFCUSB_STATES, 1);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+reset_hfcsusb(struct hfcsusb *hw)
|
|
|
+{
|
|
|
+ struct usb_fifo *fifo;
|
|
|
+ int i;
|
|
|
+
|
|
|
+ if (debug & DEBUG_HW)
|
|
|
+ printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
|
|
|
+
|
|
|
+ /* do Chip reset */
|
|
|
+ write_reg(hw, HFCUSB_CIRM, 8);
|
|
|
+
|
|
|
+ /* aux = output, reset off */
|
|
|
+ write_reg(hw, HFCUSB_CIRM, 0x10);
|
|
|
+
|
|
|
+ /* set USB_SIZE to match the wMaxPacketSize for INT or BULK transfers */
|
|
|
+ write_reg(hw, HFCUSB_USB_SIZE, (hw->packet_size / 8) |
|
|
|
+ ((hw->packet_size / 8) << 4));
|
|
|
+
|
|
|
+ /* set USB_SIZE_I to match the the wMaxPacketSize for ISO transfers */
|
|
|
+ write_reg(hw, HFCUSB_USB_SIZE_I, hw->iso_packet_size);
|
|
|
+
|
|
|
+ /* enable PCM/GCI master mode */
|
|
|
+ write_reg(hw, HFCUSB_MST_MODE1, 0); /* set default values */
|
|
|
+ write_reg(hw, HFCUSB_MST_MODE0, 1); /* enable master mode */
|
|
|
+
|
|
|
+ /* init the fifos */
|
|
|
+ write_reg(hw, HFCUSB_F_THRES,
|
|
|
+ (HFCUSB_TX_THRESHOLD / 8) | ((HFCUSB_RX_THRESHOLD / 8) << 4));
|
|
|
+
|
|
|
+ fifo = hw->fifos;
|
|
|
+ for (i = 0; i < HFCUSB_NUM_FIFOS; i++) {
|
|
|
+ write_reg(hw, HFCUSB_FIFO, i); /* select the desired fifo */
|
|
|
+ fifo[i].max_size =
|
|
|
+ (i <= HFCUSB_B2_RX) ? MAX_BCH_SIZE : MAX_DFRAME_LEN;
|
|
|
+ fifo[i].last_urblen = 0;
|
|
|
+
|
|
|
+ /* set 2 bit for D- & E-channel */
|
|
|
+ write_reg(hw, HFCUSB_HDLC_PAR, ((i <= HFCUSB_B2_RX) ? 0 : 2));
|
|
|
+
|
|
|
+ /* enable all fifos */
|
|
|
+ if (i == HFCUSB_D_TX)
|
|
|
+ write_reg(hw, HFCUSB_CON_HDLC,
|
|
|
+ (hw->protocol == ISDN_P_NT_S0) ? 0x08 : 0x09);
|
|
|
+ else
|
|
|
+ write_reg(hw, HFCUSB_CON_HDLC, 0x08);
|
|
|
+ write_reg(hw, HFCUSB_INC_RES_F, 2); /* reset the fifo */
|
|
|
+ }
|
|
|
+
|
|
|
+ write_reg(hw, HFCUSB_SCTRL_R, 0); /* disable both B receivers */
|
|
|
+ handle_led(hw, LED_POWER_ON);
|
|
|
+}
|
|
|
+
|
|
|
+/* start USB data pipes dependand on device's endpoint configuration */
|
|
|
+static void
|
|
|
+hfcsusb_start_endpoint(struct hfcsusb *hw, int channel)
|
|
|
+{
|
|
|
+ /* quick check if endpoint already running */
|
|
|
+ if ((channel == HFC_CHAN_D) && (hw->fifos[HFCUSB_D_RX].active))
|
|
|
+ return;
|
|
|
+ if ((channel == HFC_CHAN_B1) && (hw->fifos[HFCUSB_B1_RX].active))
|
|
|
+ return;
|
|
|
+ if ((channel == HFC_CHAN_B2) && (hw->fifos[HFCUSB_B2_RX].active))
|
|
|
+ return;
|
|
|
+ if ((channel == HFC_CHAN_E) && (hw->fifos[HFCUSB_PCM_RX].active))
|
|
|
+ return;
|
|
|
+
|
|
|
+ /* start rx endpoints using USB INT IN method */
|
|
|
+ if (hw->cfg_used == CNF_3INT3ISO || hw->cfg_used == CNF_4INT3ISO)
|
|
|
+ start_int_fifo(hw->fifos + channel*2 + 1);
|
|
|
+
|
|
|
+ /* start rx endpoints using USB ISO IN method */
|
|
|
+ if (hw->cfg_used == CNF_3ISO3ISO || hw->cfg_used == CNF_4ISO3ISO) {
|
|
|
+ switch (channel) {
|
|
|
+ case HFC_CHAN_D:
|
|
|
+ start_isoc_chain(hw->fifos + HFCUSB_D_RX,
|
|
|
+ ISOC_PACKETS_D,
|
|
|
+ (usb_complete_t)rx_iso_complete,
|
|
|
+ 16);
|
|
|
+ break;
|
|
|
+ case HFC_CHAN_E:
|
|
|
+ start_isoc_chain(hw->fifos + HFCUSB_PCM_RX,
|
|
|
+ ISOC_PACKETS_D,
|
|
|
+ (usb_complete_t)rx_iso_complete,
|
|
|
+ 16);
|
|
|
+ break;
|
|
|
+ case HFC_CHAN_B1:
|
|
|
+ start_isoc_chain(hw->fifos + HFCUSB_B1_RX,
|
|
|
+ ISOC_PACKETS_B,
|
|
|
+ (usb_complete_t)rx_iso_complete,
|
|
|
+ 16);
|
|
|
+ break;
|
|
|
+ case HFC_CHAN_B2:
|
|
|
+ start_isoc_chain(hw->fifos + HFCUSB_B2_RX,
|
|
|
+ ISOC_PACKETS_B,
|
|
|
+ (usb_complete_t)rx_iso_complete,
|
|
|
+ 16);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* start tx endpoints using USB ISO OUT method */
|
|
|
+ switch (channel) {
|
|
|
+ case HFC_CHAN_D:
|
|
|
+ start_isoc_chain(hw->fifos + HFCUSB_D_TX,
|
|
|
+ ISOC_PACKETS_B,
|
|
|
+ (usb_complete_t)tx_iso_complete, 1);
|
|
|
+ break;
|
|
|
+ case HFC_CHAN_B1:
|
|
|
+ start_isoc_chain(hw->fifos + HFCUSB_B1_TX,
|
|
|
+ ISOC_PACKETS_D,
|
|
|
+ (usb_complete_t)tx_iso_complete, 1);
|
|
|
+ break;
|
|
|
+ case HFC_CHAN_B2:
|
|
|
+ start_isoc_chain(hw->fifos + HFCUSB_B2_TX,
|
|
|
+ ISOC_PACKETS_B,
|
|
|
+ (usb_complete_t)tx_iso_complete, 1);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/* stop USB data pipes dependand on device's endpoint configuration */
|
|
|
+static void
|
|
|
+hfcsusb_stop_endpoint(struct hfcsusb *hw, int channel)
|
|
|
+{
|
|
|
+ /* quick check if endpoint currently running */
|
|
|
+ if ((channel == HFC_CHAN_D) && (!hw->fifos[HFCUSB_D_RX].active))
|
|
|
+ return;
|
|
|
+ if ((channel == HFC_CHAN_B1) && (!hw->fifos[HFCUSB_B1_RX].active))
|
|
|
+ return;
|
|
|
+ if ((channel == HFC_CHAN_B2) && (!hw->fifos[HFCUSB_B2_RX].active))
|
|
|
+ return;
|
|
|
+ if ((channel == HFC_CHAN_E) && (!hw->fifos[HFCUSB_PCM_RX].active))
|
|
|
+ return;
|
|
|
+
|
|
|
+ /* rx endpoints using USB INT IN method */
|
|
|
+ if (hw->cfg_used == CNF_3INT3ISO || hw->cfg_used == CNF_4INT3ISO)
|
|
|
+ stop_int_gracefull(hw->fifos + channel*2 + 1);
|
|
|
+
|
|
|
+ /* rx endpoints using USB ISO IN method */
|
|
|
+ if (hw->cfg_used == CNF_3ISO3ISO || hw->cfg_used == CNF_4ISO3ISO)
|
|
|
+ stop_iso_gracefull(hw->fifos + channel*2 + 1);
|
|
|
+
|
|
|
+ /* tx endpoints using USB ISO OUT method */
|
|
|
+ if (channel != HFC_CHAN_E)
|
|
|
+ stop_iso_gracefull(hw->fifos + channel*2);
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/* Hardware Initialization */
|
|
|
+int
|
|
|
+setup_hfcsusb(struct hfcsusb *hw)
|
|
|
+{
|
|
|
+ int err;
|
|
|
+ u_char b;
|
|
|
+
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
|
|
|
+
|
|
|
+ /* check the chip id */
|
|
|
+ if (read_reg_atomic(hw, HFCUSB_CHIP_ID, &b) != 1) {
|
|
|
+ printk(KERN_DEBUG "%s: %s: cannot read chip id\n",
|
|
|
+ hw->name, __func__);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ if (b != HFCUSB_CHIPID) {
|
|
|
+ printk(KERN_DEBUG "%s: %s: Invalid chip id 0x%02x\n",
|
|
|
+ hw->name, __func__, b);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* first set the needed config, interface and alternate */
|
|
|
+ err = usb_set_interface(hw->dev, hw->if_used, hw->alt_used);
|
|
|
+
|
|
|
+ hw->led_state = 0;
|
|
|
+
|
|
|
+ /* init the background machinery for control requests */
|
|
|
+ hw->ctrl_read.bRequestType = 0xc0;
|
|
|
+ hw->ctrl_read.bRequest = 1;
|
|
|
+ hw->ctrl_read.wLength = cpu_to_le16(1);
|
|
|
+ hw->ctrl_write.bRequestType = 0x40;
|
|
|
+ hw->ctrl_write.bRequest = 0;
|
|
|
+ hw->ctrl_write.wLength = 0;
|
|
|
+ usb_fill_control_urb(hw->ctrl_urb, hw->dev, hw->ctrl_out_pipe,
|
|
|
+ (u_char *)&hw->ctrl_write, NULL, 0,
|
|
|
+ (usb_complete_t)ctrl_complete, hw);
|
|
|
+
|
|
|
+ reset_hfcsusb(hw);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+release_hw(struct hfcsusb *hw)
|
|
|
+{
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * stop all endpoints gracefully
|
|
|
+ * TODO: mISDN_core should generate CLOSE_CHANNEL
|
|
|
+ * signals after calling mISDN_unregister_device()
|
|
|
+ */
|
|
|
+ hfcsusb_stop_endpoint(hw, HFC_CHAN_D);
|
|
|
+ hfcsusb_stop_endpoint(hw, HFC_CHAN_B1);
|
|
|
+ hfcsusb_stop_endpoint(hw, HFC_CHAN_B2);
|
|
|
+ if (hw->fifos[HFCUSB_PCM_RX].pipe)
|
|
|
+ hfcsusb_stop_endpoint(hw, HFC_CHAN_E);
|
|
|
+ if (hw->protocol == ISDN_P_TE_S0)
|
|
|
+ l1_event(hw->dch.l1, CLOSE_CHANNEL);
|
|
|
+
|
|
|
+ mISDN_unregister_device(&hw->dch.dev);
|
|
|
+ mISDN_freebchannel(&hw->bch[1]);
|
|
|
+ mISDN_freebchannel(&hw->bch[0]);
|
|
|
+ mISDN_freedchannel(&hw->dch);
|
|
|
+
|
|
|
+ if (hw->ctrl_urb) {
|
|
|
+ usb_kill_urb(hw->ctrl_urb);
|
|
|
+ usb_free_urb(hw->ctrl_urb);
|
|
|
+ hw->ctrl_urb = NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (hw->intf)
|
|
|
+ usb_set_intfdata(hw->intf, NULL);
|
|
|
+ list_del(&hw->list);
|
|
|
+ kfree(hw);
|
|
|
+ hw = NULL;
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+deactivate_bchannel(struct bchannel *bch)
|
|
|
+{
|
|
|
+ struct hfcsusb *hw = bch->hw;
|
|
|
+ u_long flags;
|
|
|
+
|
|
|
+ if (bch->debug & DEBUG_HW)
|
|
|
+ printk(KERN_DEBUG "%s: %s: bch->nr(%i)\n",
|
|
|
+ hw->name, __func__, bch->nr);
|
|
|
+
|
|
|
+ spin_lock_irqsave(&hw->lock, flags);
|
|
|
+ if (test_and_clear_bit(FLG_TX_NEXT, &bch->Flags)) {
|
|
|
+ dev_kfree_skb(bch->next_skb);
|
|
|
+ bch->next_skb = NULL;
|
|
|
+ }
|
|
|
+ if (bch->tx_skb) {
|
|
|
+ dev_kfree_skb(bch->tx_skb);
|
|
|
+ bch->tx_skb = NULL;
|
|
|
+ }
|
|
|
+ bch->tx_idx = 0;
|
|
|
+ if (bch->rx_skb) {
|
|
|
+ dev_kfree_skb(bch->rx_skb);
|
|
|
+ bch->rx_skb = NULL;
|
|
|
+ }
|
|
|
+ clear_bit(FLG_ACTIVE, &bch->Flags);
|
|
|
+ clear_bit(FLG_TX_BUSY, &bch->Flags);
|
|
|
+ spin_unlock_irqrestore(&hw->lock, flags);
|
|
|
+ hfcsusb_setup_bch(bch, ISDN_P_NONE);
|
|
|
+ hfcsusb_stop_endpoint(hw, bch->nr);
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * Layer 1 B-channel hardware access
|
|
|
+ */
|
|
|
+static int
|
|
|
+hfc_bctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
|
|
|
+{
|
|
|
+ struct bchannel *bch = container_of(ch, struct bchannel, ch);
|
|
|
+ int ret = -EINVAL;
|
|
|
+
|
|
|
+ if (bch->debug & DEBUG_HW)
|
|
|
+ printk(KERN_DEBUG "%s: cmd:%x %p\n", __func__, cmd, arg);
|
|
|
+
|
|
|
+ switch (cmd) {
|
|
|
+ case HW_TESTRX_RAW:
|
|
|
+ case HW_TESTRX_HDLC:
|
|
|
+ case HW_TESTRX_OFF:
|
|
|
+ ret = -EINVAL;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case CLOSE_CHANNEL:
|
|
|
+ test_and_clear_bit(FLG_OPEN, &bch->Flags);
|
|
|
+ if (test_bit(FLG_ACTIVE, &bch->Flags))
|
|
|
+ deactivate_bchannel(bch);
|
|
|
+ ch->protocol = ISDN_P_NONE;
|
|
|
+ ch->peer = NULL;
|
|
|
+ module_put(THIS_MODULE);
|
|
|
+ ret = 0;
|
|
|
+ break;
|
|
|
+ case CONTROL_CHANNEL:
|
|
|
+ ret = channel_bctrl(bch, arg);
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ printk(KERN_WARNING "%s: unknown prim(%x)\n",
|
|
|
+ __func__, cmd);
|
|
|
+ }
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+setup_instance(struct hfcsusb *hw, struct device *parent)
|
|
|
+{
|
|
|
+ u_long flags;
|
|
|
+ int err, i;
|
|
|
+
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
|
|
|
+
|
|
|
+ spin_lock_init(&hw->ctrl_lock);
|
|
|
+ spin_lock_init(&hw->lock);
|
|
|
+
|
|
|
+ mISDN_initdchannel(&hw->dch, MAX_DFRAME_LEN_L1, ph_state);
|
|
|
+ hw->dch.debug = debug & 0xFFFF;
|
|
|
+ hw->dch.hw = hw;
|
|
|
+ hw->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0) | (1 << ISDN_P_NT_S0);
|
|
|
+ hw->dch.dev.D.send = hfcusb_l2l1D;
|
|
|
+ hw->dch.dev.D.ctrl = hfc_dctrl;
|
|
|
+
|
|
|
+ /* enable E-Channel logging */
|
|
|
+ if (hw->fifos[HFCUSB_PCM_RX].pipe)
|
|
|
+ mISDN_initdchannel(&hw->ech, MAX_DFRAME_LEN_L1, NULL);
|
|
|
+
|
|
|
+ hw->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
|
|
|
+ (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK));
|
|
|
+ hw->dch.dev.nrbchan = 2;
|
|
|
+ for (i = 0; i < 2; i++) {
|
|
|
+ hw->bch[i].nr = i + 1;
|
|
|
+ set_channelmap(i + 1, hw->dch.dev.channelmap);
|
|
|
+ hw->bch[i].debug = debug;
|
|
|
+ mISDN_initbchannel(&hw->bch[i], MAX_DATA_MEM);
|
|
|
+ hw->bch[i].hw = hw;
|
|
|
+ hw->bch[i].ch.send = hfcusb_l2l1B;
|
|
|
+ hw->bch[i].ch.ctrl = hfc_bctrl;
|
|
|
+ hw->bch[i].ch.nr = i + 1;
|
|
|
+ list_add(&hw->bch[i].ch.list, &hw->dch.dev.bchannels);
|
|
|
+ }
|
|
|
+
|
|
|
+ hw->fifos[HFCUSB_B1_TX].bch = &hw->bch[0];
|
|
|
+ hw->fifos[HFCUSB_B1_RX].bch = &hw->bch[0];
|
|
|
+ hw->fifos[HFCUSB_B2_TX].bch = &hw->bch[1];
|
|
|
+ hw->fifos[HFCUSB_B2_RX].bch = &hw->bch[1];
|
|
|
+ hw->fifos[HFCUSB_D_TX].dch = &hw->dch;
|
|
|
+ hw->fifos[HFCUSB_D_RX].dch = &hw->dch;
|
|
|
+ hw->fifos[HFCUSB_PCM_RX].ech = &hw->ech;
|
|
|
+ hw->fifos[HFCUSB_PCM_TX].ech = &hw->ech;
|
|
|
+
|
|
|
+ err = setup_hfcsusb(hw);
|
|
|
+ if (err)
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ snprintf(hw->name, MISDN_MAX_IDLEN - 1, "%s.%d", DRIVER_NAME,
|
|
|
+ hfcsusb_cnt + 1);
|
|
|
+ printk(KERN_INFO "%s: registered as '%s'\n",
|
|
|
+ DRIVER_NAME, hw->name);
|
|
|
+
|
|
|
+ err = mISDN_register_device(&hw->dch.dev, parent, hw->name);
|
|
|
+ if (err)
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ hfcsusb_cnt++;
|
|
|
+ write_lock_irqsave(&HFClock, flags);
|
|
|
+ list_add_tail(&hw->list, &HFClist);
|
|
|
+ write_unlock_irqrestore(&HFClock, flags);
|
|
|
+ return 0;
|
|
|
+
|
|
|
+out:
|
|
|
+ mISDN_freebchannel(&hw->bch[1]);
|
|
|
+ mISDN_freebchannel(&hw->bch[0]);
|
|
|
+ mISDN_freedchannel(&hw->dch);
|
|
|
+ kfree(hw);
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+hfcsusb_probe(struct usb_interface *intf, const struct usb_device_id *id)
|
|
|
+{
|
|
|
+ struct hfcsusb *hw;
|
|
|
+ struct usb_device *dev = interface_to_usbdev(intf);
|
|
|
+ struct usb_host_interface *iface = intf->cur_altsetting;
|
|
|
+ struct usb_host_interface *iface_used = NULL;
|
|
|
+ struct usb_host_endpoint *ep;
|
|
|
+ struct hfcsusb_vdata *driver_info;
|
|
|
+ int ifnum = iface->desc.bInterfaceNumber, i, idx, alt_idx,
|
|
|
+ probe_alt_setting, vend_idx, cfg_used, *vcf, attr, cfg_found,
|
|
|
+ ep_addr, cmptbl[16], small_match, iso_packet_size, packet_size,
|
|
|
+ alt_used = 0;
|
|
|
+
|
|
|
+ vend_idx = 0xffff;
|
|
|
+ for (i = 0; hfcsusb_idtab[i].idVendor; i++) {
|
|
|
+ if ((le16_to_cpu(dev->descriptor.idVendor)
|
|
|
+ == hfcsusb_idtab[i].idVendor) &&
|
|
|
+ (le16_to_cpu(dev->descriptor.idProduct)
|
|
|
+ == hfcsusb_idtab[i].idProduct)) {
|
|
|
+ vend_idx = i;
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ printk(KERN_DEBUG
|
|
|
+ "%s: interface(%d) actalt(%d) minor(%d) vend_idx(%d)\n",
|
|
|
+ __func__, ifnum, iface->desc.bAlternateSetting,
|
|
|
+ intf->minor, vend_idx);
|
|
|
+
|
|
|
+ if (vend_idx == 0xffff) {
|
|
|
+ printk(KERN_WARNING
|
|
|
+ "%s: no valid vendor found in USB descriptor\n",
|
|
|
+ __func__);
|
|
|
+ return -EIO;
|
|
|
+ }
|
|
|
+ /* if vendor and product ID is OK, start probing alternate settings */
|
|
|
+ alt_idx = 0;
|
|
|
+ small_match = -1;
|
|
|
+
|
|
|
+ /* default settings */
|
|
|
+ iso_packet_size = 16;
|
|
|
+ packet_size = 64;
|
|
|
+
|
|
|
+ while (alt_idx < intf->num_altsetting) {
|
|
|
+ iface = intf->altsetting + alt_idx;
|
|
|
+ probe_alt_setting = iface->desc.bAlternateSetting;
|
|
|
+ cfg_used = 0;
|
|
|
+
|
|
|
+ while (validconf[cfg_used][0]) {
|
|
|
+ cfg_found = 1;
|
|
|
+ vcf = validconf[cfg_used];
|
|
|
+ ep = iface->endpoint;
|
|
|
+ memcpy(cmptbl, vcf, 16 * sizeof(int));
|
|
|
+
|
|
|
+ /* check for all endpoints in this alternate setting */
|
|
|
+ for (i = 0; i < iface->desc.bNumEndpoints; i++) {
|
|
|
+ ep_addr = ep->desc.bEndpointAddress;
|
|
|
+
|
|
|
+ /* get endpoint base */
|
|
|
+ idx = ((ep_addr & 0x7f) - 1) * 2;
|
|
|
+ if (ep_addr & 0x80)
|
|
|
+ idx++;
|
|
|
+ attr = ep->desc.bmAttributes;
|
|
|
+
|
|
|
+ if (cmptbl[idx] != EP_NOP) {
|
|
|
+ if (cmptbl[idx] == EP_NUL)
|
|
|
+ cfg_found = 0;
|
|
|
+ if (attr == USB_ENDPOINT_XFER_INT
|
|
|
+ && cmptbl[idx] == EP_INT)
|
|
|
+ cmptbl[idx] = EP_NUL;
|
|
|
+ if (attr == USB_ENDPOINT_XFER_BULK
|
|
|
+ && cmptbl[idx] == EP_BLK)
|
|
|
+ cmptbl[idx] = EP_NUL;
|
|
|
+ if (attr == USB_ENDPOINT_XFER_ISOC
|
|
|
+ && cmptbl[idx] == EP_ISO)
|
|
|
+ cmptbl[idx] = EP_NUL;
|
|
|
+
|
|
|
+ if (attr == USB_ENDPOINT_XFER_INT &&
|
|
|
+ ep->desc.bInterval < vcf[17]) {
|
|
|
+ cfg_found = 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ ep++;
|
|
|
+ }
|
|
|
+
|
|
|
+ for (i = 0; i < 16; i++)
|
|
|
+ if (cmptbl[i] != EP_NOP && cmptbl[i] != EP_NUL)
|
|
|
+ cfg_found = 0;
|
|
|
+
|
|
|
+ if (cfg_found) {
|
|
|
+ if (small_match < cfg_used) {
|
|
|
+ small_match = cfg_used;
|
|
|
+ alt_used = probe_alt_setting;
|
|
|
+ iface_used = iface;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ cfg_used++;
|
|
|
+ }
|
|
|
+ alt_idx++;
|
|
|
+ } /* (alt_idx < intf->num_altsetting) */
|
|
|
+
|
|
|
+ /* not found a valid USB Ta Endpoint config */
|
|
|
+ if (small_match == -1)
|
|
|
+ return -EIO;
|
|
|
+
|
|
|
+ iface = iface_used;
|
|
|
+ hw = kzalloc(sizeof(struct hfcsusb), GFP_KERNEL);
|
|
|
+ if (!hw)
|
|
|
+ return -ENOMEM; /* got no mem */
|
|
|
+ snprintf(hw->name, MISDN_MAX_IDLEN - 1, "%s", DRIVER_NAME);
|
|
|
+
|
|
|
+ ep = iface->endpoint;
|
|
|
+ vcf = validconf[small_match];
|
|
|
+
|
|
|
+ for (i = 0; i < iface->desc.bNumEndpoints; i++) {
|
|
|
+ struct usb_fifo *f;
|
|
|
+
|
|
|
+ ep_addr = ep->desc.bEndpointAddress;
|
|
|
+ /* get endpoint base */
|
|
|
+ idx = ((ep_addr & 0x7f) - 1) * 2;
|
|
|
+ if (ep_addr & 0x80)
|
|
|
+ idx++;
|
|
|
+ f = &hw->fifos[idx & 7];
|
|
|
+
|
|
|
+ /* init Endpoints */
|
|
|
+ if (vcf[idx] == EP_NOP || vcf[idx] == EP_NUL) {
|
|
|
+ ep++;
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ switch (ep->desc.bmAttributes) {
|
|
|
+ case USB_ENDPOINT_XFER_INT:
|
|
|
+ f->pipe = usb_rcvintpipe(dev,
|
|
|
+ ep->desc.bEndpointAddress);
|
|
|
+ f->usb_transfer_mode = USB_INT;
|
|
|
+ packet_size = le16_to_cpu(ep->desc.wMaxPacketSize);
|
|
|
+ break;
|
|
|
+ case USB_ENDPOINT_XFER_BULK:
|
|
|
+ if (ep_addr & 0x80)
|
|
|
+ f->pipe = usb_rcvbulkpipe(dev,
|
|
|
+ ep->desc.bEndpointAddress);
|
|
|
+ else
|
|
|
+ f->pipe = usb_sndbulkpipe(dev,
|
|
|
+ ep->desc.bEndpointAddress);
|
|
|
+ f->usb_transfer_mode = USB_BULK;
|
|
|
+ packet_size = le16_to_cpu(ep->desc.wMaxPacketSize);
|
|
|
+ break;
|
|
|
+ case USB_ENDPOINT_XFER_ISOC:
|
|
|
+ if (ep_addr & 0x80)
|
|
|
+ f->pipe = usb_rcvisocpipe(dev,
|
|
|
+ ep->desc.bEndpointAddress);
|
|
|
+ else
|
|
|
+ f->pipe = usb_sndisocpipe(dev,
|
|
|
+ ep->desc.bEndpointAddress);
|
|
|
+ f->usb_transfer_mode = USB_ISOC;
|
|
|
+ iso_packet_size = le16_to_cpu(ep->desc.wMaxPacketSize);
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ f->pipe = 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (f->pipe) {
|
|
|
+ f->fifonum = idx & 7;
|
|
|
+ f->hw = hw;
|
|
|
+ f->usb_packet_maxlen =
|
|
|
+ le16_to_cpu(ep->desc.wMaxPacketSize);
|
|
|
+ f->intervall = ep->desc.bInterval;
|
|
|
+ }
|
|
|
+ ep++;
|
|
|
+ }
|
|
|
+ hw->dev = dev; /* save device */
|
|
|
+ hw->if_used = ifnum; /* save used interface */
|
|
|
+ hw->alt_used = alt_used; /* and alternate config */
|
|
|
+ hw->ctrl_paksize = dev->descriptor.bMaxPacketSize0; /* control size */
|
|
|
+ hw->cfg_used = vcf[16]; /* store used config */
|
|
|
+ hw->vend_idx = vend_idx; /* store found vendor */
|
|
|
+ hw->packet_size = packet_size;
|
|
|
+ hw->iso_packet_size = iso_packet_size;
|
|
|
+
|
|
|
+ /* create the control pipes needed for register access */
|
|
|
+ hw->ctrl_in_pipe = usb_rcvctrlpipe(hw->dev, 0);
|
|
|
+ hw->ctrl_out_pipe = usb_sndctrlpipe(hw->dev, 0);
|
|
|
+ hw->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
|
+
|
|
|
+ driver_info =
|
|
|
+ (struct hfcsusb_vdata *)hfcsusb_idtab[vend_idx].driver_info;
|
|
|
+ printk(KERN_DEBUG "%s: %s: detected \"%s\" (%s, if=%d alt=%d)\n",
|
|
|
+ hw->name, __func__, driver_info->vend_name,
|
|
|
+ conf_str[small_match], ifnum, alt_used);
|
|
|
+
|
|
|
+ if (setup_instance(hw, dev->dev.parent))
|
|
|
+ return -EIO;
|
|
|
+
|
|
|
+ hw->intf = intf;
|
|
|
+ usb_set_intfdata(hw->intf, hw);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/* function called when an active device is removed */
|
|
|
+static void
|
|
|
+hfcsusb_disconnect(struct usb_interface *intf)
|
|
|
+{
|
|
|
+ struct hfcsusb *hw = usb_get_intfdata(intf);
|
|
|
+ struct hfcsusb *next;
|
|
|
+ int cnt = 0;
|
|
|
+
|
|
|
+ printk(KERN_INFO "%s: device disconnected\n", hw->name);
|
|
|
+
|
|
|
+ handle_led(hw, LED_POWER_OFF);
|
|
|
+ release_hw(hw);
|
|
|
+
|
|
|
+ list_for_each_entry_safe(hw, next, &HFClist, list)
|
|
|
+ cnt++;
|
|
|
+ if (!cnt)
|
|
|
+ hfcsusb_cnt = 0;
|
|
|
+
|
|
|
+ usb_set_intfdata(intf, NULL);
|
|
|
+}
|
|
|
+
|
|
|
+static struct usb_driver hfcsusb_drv = {
|
|
|
+ .name = DRIVER_NAME,
|
|
|
+ .id_table = hfcsusb_idtab,
|
|
|
+ .probe = hfcsusb_probe,
|
|
|
+ .disconnect = hfcsusb_disconnect,
|
|
|
+};
|
|
|
+
|
|
|
+static int __init
|
|
|
+hfcsusb_init(void)
|
|
|
+{
|
|
|
+ printk(KERN_INFO DRIVER_NAME " driver Rev. %s debug(0x%x) poll(%i)\n",
|
|
|
+ hfcsusb_rev, debug, poll);
|
|
|
+
|
|
|
+ if (usb_register(&hfcsusb_drv)) {
|
|
|
+ printk(KERN_INFO DRIVER_NAME
|
|
|
+ ": Unable to register hfcsusb module at usb stack\n");
|
|
|
+ return -ENODEV;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static void __exit
|
|
|
+hfcsusb_cleanup(void)
|
|
|
+{
|
|
|
+ if (debug & DBG_HFC_CALL_TRACE)
|
|
|
+ printk(KERN_INFO DRIVER_NAME ": %s\n", __func__);
|
|
|
+
|
|
|
+ /* unregister Hardware */
|
|
|
+ usb_deregister(&hfcsusb_drv); /* release our driver */
|
|
|
+}
|
|
|
+
|
|
|
+module_init(hfcsusb_init);
|
|
|
+module_exit(hfcsusb_cleanup);
|
Linus Torvalds