gigaset: prepare for CAPI implementation
Reorganize the code of the Gigaset driver, moving all isdn4linux dependencies to the source file i4l.c so that it can be replaced by a file capi.c interfacing to Kernel CAPI instead. Impact: refactoring, no functional change Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
Цей коміт міститься в:
Tilman Schmidt
зафіксовано
David S. Miller
David S. Miller
джерело
7ecc59c1b7
коміт
088ec0cc96
@@ -14,6 +14,9 @@
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*/
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#include "gigaset.h"
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#include <linux/isdnif.h>
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#define HW_HDR_LEN 2 /* Header size used to store ack info */
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/* == Handling of I4L IO =====================================================*/
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@@ -95,6 +98,7 @@ static int writebuf_from_LL(int driverID, int channel, int ack,
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*/
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void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb)
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{
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isdn_if *iif = bcs->cs->iif;
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unsigned len;
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isdn_ctrl response;
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@@ -114,71 +118,177 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb)
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response.command = ISDN_STAT_BSENT;
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response.arg = bcs->channel;
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response.parm.length = len;
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bcs->cs->iif.statcallb(&response);
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iif->statcallb(&response);
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}
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}
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EXPORT_SYMBOL_GPL(gigaset_skb_sent);
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/**
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* gigaset_skb_rcvd() - pass received skb to LL
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* @bcs: B channel descriptor structure.
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* @skb: received data.
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*
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* Called by hardware module {bas,ser,usb}_gigaset when user data has
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* been successfully received, for passing to the LL.
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* Warning: skb must not be accessed anymore!
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*/
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void gigaset_skb_rcvd(struct bc_state *bcs, struct sk_buff *skb)
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{
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isdn_if *iif = bcs->cs->iif;
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iif->rcvcallb_skb(bcs->cs->myid, bcs->channel, skb);
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bcs->trans_down++;
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}
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EXPORT_SYMBOL_GPL(gigaset_skb_rcvd);
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/**
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* gigaset_isdn_rcv_err() - signal receive error
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* @bcs: B channel descriptor structure.
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*
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* Called by hardware module {bas,ser,usb}_gigaset when a receive error
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* has occurred, for signalling to the LL.
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*/
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void gigaset_isdn_rcv_err(struct bc_state *bcs)
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{
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isdn_if *iif = bcs->cs->iif;
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isdn_ctrl response;
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/* if currently ignoring packets, just count down */
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if (bcs->ignore) {
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bcs->ignore--;
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return;
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}
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/* update statistics */
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bcs->corrupted++;
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/* error -> LL */
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gig_dbg(DEBUG_CMD, "sending L1ERR");
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response.driver = bcs->cs->myid;
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response.command = ISDN_STAT_L1ERR;
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response.arg = bcs->channel;
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response.parm.errcode = ISDN_STAT_L1ERR_RECV;
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iif->statcallb(&response);
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}
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EXPORT_SYMBOL_GPL(gigaset_isdn_rcv_err);
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/* This function will be called by LL to send commands
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* NOTE: LL ignores the returned value, for commands other than ISDN_CMD_IOCTL,
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* so don't put too much effort into it.
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*/
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static int command_from_LL(isdn_ctrl *cntrl)
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{
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struct cardstate *cs = gigaset_get_cs_by_id(cntrl->driver);
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struct cardstate *cs;
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struct bc_state *bcs;
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int retval = 0;
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struct setup_parm *sp;
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char **commands;
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int ch;
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int i;
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size_t l;
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gigaset_debugdrivers();
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if (!cs) {
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gig_dbg(DEBUG_CMD, "driver: %d, command: %d, arg: 0x%lx",
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cntrl->driver, cntrl->command, cntrl->arg);
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cs = gigaset_get_cs_by_id(cntrl->driver);
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if (cs == NULL) {
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pr_err("%s: invalid driver ID (%d)\n", __func__, cntrl->driver);
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return -ENODEV;
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}
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ch = cntrl->arg & 0xff;
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switch (cntrl->command) {
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case ISDN_CMD_IOCTL:
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gig_dbg(DEBUG_ANY, "ISDN_CMD_IOCTL (driver: %d, arg: %ld)",
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cntrl->driver, cntrl->arg);
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dev_warn(cs->dev, "ISDN_CMD_IOCTL not supported\n");
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return -EINVAL;
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case ISDN_CMD_DIAL:
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gig_dbg(DEBUG_ANY,
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"ISDN_CMD_DIAL (driver: %d, ch: %ld, "
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"phone: %s, ownmsn: %s, si1: %d, si2: %d)",
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cntrl->driver, cntrl->arg,
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"ISDN_CMD_DIAL (phone: %s, msn: %s, si1: %d, si2: %d)",
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cntrl->parm.setup.phone, cntrl->parm.setup.eazmsn,
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cntrl->parm.setup.si1, cntrl->parm.setup.si2);
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if (cntrl->arg >= cs->channels) {
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if (ch >= cs->channels) {
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dev_err(cs->dev,
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"ISDN_CMD_DIAL: invalid channel (%d)\n",
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(int) cntrl->arg);
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"ISDN_CMD_DIAL: invalid channel (%d)\n", ch);
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return -EINVAL;
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}
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bcs = cs->bcs + cntrl->arg;
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bcs = cs->bcs + ch;
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if (!gigaset_get_channel(bcs)) {
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dev_err(cs->dev, "ISDN_CMD_DIAL: channel not free\n");
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return -EBUSY;
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}
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sp = kmalloc(sizeof *sp, GFP_ATOMIC);
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if (!sp) {
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commands = kzalloc(AT_NUM*(sizeof *commands), GFP_ATOMIC);
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if (!commands) {
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gigaset_free_channel(bcs);
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dev_err(cs->dev, "ISDN_CMD_DIAL: out of memory\n");
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return -ENOMEM;
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}
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*sp = cntrl->parm.setup;
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if (!gigaset_add_event(cs, &bcs->at_state, EV_DIAL, sp,
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l = 3 + strlen(cntrl->parm.setup.phone);
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commands[AT_DIAL] = kmalloc(l, GFP_ATOMIC);
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if (!commands[AT_DIAL])
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goto oom;
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if (cntrl->parm.setup.phone[0] == '*' &&
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cntrl->parm.setup.phone[1] == '*') {
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/* internal call: translate ** prefix to CTP value */
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commands[AT_TYPE] = kstrdup("^SCTP=0\r", GFP_ATOMIC);
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if (!commands[AT_TYPE])
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goto oom;
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snprintf(commands[AT_DIAL], l,
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"D%s\r", cntrl->parm.setup.phone+2);
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} else {
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commands[AT_TYPE] = kstrdup("^SCTP=1\r", GFP_ATOMIC);
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if (!commands[AT_TYPE])
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goto oom;
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snprintf(commands[AT_DIAL], l,
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"D%s\r", cntrl->parm.setup.phone);
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}
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l = strlen(cntrl->parm.setup.eazmsn);
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if (l) {
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l += 8;
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commands[AT_MSN] = kmalloc(l, GFP_ATOMIC);
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if (!commands[AT_MSN])
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goto oom;
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snprintf(commands[AT_MSN], l, "^SMSN=%s\r",
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cntrl->parm.setup.eazmsn);
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}
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switch (cntrl->parm.setup.si1) {
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case 1: /* audio */
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/* BC = 9090A3: 3.1 kHz audio, A-law */
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commands[AT_BC] = kstrdup("^SBC=9090A3\r", GFP_ATOMIC);
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if (!commands[AT_BC])
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goto oom;
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break;
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case 7: /* data */
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default: /* hope the app knows what it is doing */
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/* BC = 8890: unrestricted digital information */
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commands[AT_BC] = kstrdup("^SBC=8890\r", GFP_ATOMIC);
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if (!commands[AT_BC])
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goto oom;
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}
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/* ToDo: other si1 values, inspect si2, set HLC/LLC */
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commands[AT_PROTO] = kmalloc(9, GFP_ATOMIC);
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if (!commands[AT_PROTO])
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goto oom;
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snprintf(commands[AT_PROTO], 9, "^SBPR=%u\r", bcs->proto2);
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commands[AT_ISO] = kmalloc(9, GFP_ATOMIC);
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if (!commands[AT_ISO])
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goto oom;
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snprintf(commands[AT_ISO], 9, "^SISO=%u\r",
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(unsigned) bcs->channel + 1);
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if (!gigaset_add_event(cs, &bcs->at_state, EV_DIAL, commands,
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bcs->at_state.seq_index, NULL)) {
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//FIXME what should we do?
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kfree(sp);
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for (i = 0; i < AT_NUM; ++i)
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kfree(commands[i]);
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kfree(commands);
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gigaset_free_channel(bcs);
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return -ENOMEM;
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}
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@@ -186,93 +296,83 @@ static int command_from_LL(isdn_ctrl *cntrl)
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gig_dbg(DEBUG_CMD, "scheduling DIAL");
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gigaset_schedule_event(cs);
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break;
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case ISDN_CMD_ACCEPTD: //FIXME
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gig_dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTD");
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if (cntrl->arg >= cs->channels) {
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case ISDN_CMD_ACCEPTD:
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if (ch >= cs->channels) {
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dev_err(cs->dev,
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"ISDN_CMD_ACCEPTD: invalid channel (%d)\n",
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(int) cntrl->arg);
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"ISDN_CMD_ACCEPTD: invalid channel (%d)\n", ch);
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return -EINVAL;
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}
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if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg].at_state,
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EV_ACCEPT, NULL, 0, NULL)) {
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//FIXME what should we do?
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bcs = cs->bcs + ch;
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if (!gigaset_add_event(cs, &bcs->at_state,
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EV_ACCEPT, NULL, 0, NULL))
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return -ENOMEM;
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}
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gig_dbg(DEBUG_CMD, "scheduling ACCEPT");
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gigaset_schedule_event(cs);
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break;
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case ISDN_CMD_ACCEPTB:
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gig_dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTB");
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break;
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case ISDN_CMD_HANGUP:
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gig_dbg(DEBUG_ANY, "ISDN_CMD_HANGUP (ch: %d)",
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(int) cntrl->arg);
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if (cntrl->arg >= cs->channels) {
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if (ch >= cs->channels) {
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dev_err(cs->dev,
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"ISDN_CMD_HANGUP: invalid channel (%d)\n",
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(int) cntrl->arg);
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"ISDN_CMD_HANGUP: invalid channel (%d)\n", ch);
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return -EINVAL;
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}
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if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg].at_state,
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EV_HUP, NULL, 0, NULL)) {
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//FIXME what should we do?
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bcs = cs->bcs + ch;
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if (!gigaset_add_event(cs, &bcs->at_state,
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EV_HUP, NULL, 0, NULL))
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return -ENOMEM;
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}
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||||
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gig_dbg(DEBUG_CMD, "scheduling HUP");
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gigaset_schedule_event(cs);
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|
||||
break;
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case ISDN_CMD_CLREAZ: /* Do not signal incoming signals */ //FIXME
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gig_dbg(DEBUG_ANY, "ISDN_CMD_CLREAZ");
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case ISDN_CMD_CLREAZ: /* Do not signal incoming signals */
|
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dev_info(cs->dev, "ignoring ISDN_CMD_CLREAZ\n");
|
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break;
|
||||
case ISDN_CMD_SETEAZ: /* Signal incoming calls for given MSN */ //FIXME
|
||||
gig_dbg(DEBUG_ANY,
|
||||
"ISDN_CMD_SETEAZ (id: %d, ch: %ld, number: %s)",
|
||||
cntrl->driver, cntrl->arg, cntrl->parm.num);
|
||||
case ISDN_CMD_SETEAZ: /* Signal incoming calls for given MSN */
|
||||
dev_info(cs->dev, "ignoring ISDN_CMD_SETEAZ (%s)\n",
|
||||
cntrl->parm.num);
|
||||
break;
|
||||
case ISDN_CMD_SETL2: /* Set L2 to given protocol */
|
||||
gig_dbg(DEBUG_ANY, "ISDN_CMD_SETL2 (ch: %ld, proto: %lx)",
|
||||
cntrl->arg & 0xff, (cntrl->arg >> 8));
|
||||
|
||||
if ((cntrl->arg & 0xff) >= cs->channels) {
|
||||
if (ch >= cs->channels) {
|
||||
dev_err(cs->dev,
|
||||
"ISDN_CMD_SETL2: invalid channel (%d)\n",
|
||||
(int) cntrl->arg & 0xff);
|
||||
"ISDN_CMD_SETL2: invalid channel (%d)\n", ch);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg & 0xff].at_state,
|
||||
EV_PROTO_L2, NULL, cntrl->arg >> 8,
|
||||
NULL)) {
|
||||
//FIXME what should we do?
|
||||
return -ENOMEM;
|
||||
bcs = cs->bcs + ch;
|
||||
if (bcs->chstate & CHS_D_UP) {
|
||||
dev_err(cs->dev,
|
||||
"ISDN_CMD_SETL2: channel active (%d)\n", ch);
|
||||
return -EINVAL;
|
||||
}
|
||||
switch (cntrl->arg >> 8) {
|
||||
case ISDN_PROTO_L2_HDLC:
|
||||
gig_dbg(DEBUG_CMD, "ISDN_CMD_SETL2: setting L2_HDLC");
|
||||
bcs->proto2 = L2_HDLC;
|
||||
break;
|
||||
case ISDN_PROTO_L2_TRANS:
|
||||
gig_dbg(DEBUG_CMD, "ISDN_CMD_SETL2: setting L2_VOICE");
|
||||
bcs->proto2 = L2_VOICE;
|
||||
break;
|
||||
default:
|
||||
dev_err(cs->dev,
|
||||
"ISDN_CMD_SETL2: unsupported protocol (%lu)\n",
|
||||
cntrl->arg >> 8);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
gig_dbg(DEBUG_CMD, "scheduling PROTO_L2");
|
||||
gigaset_schedule_event(cs);
|
||||
break;
|
||||
case ISDN_CMD_SETL3: /* Set L3 to given protocol */
|
||||
gig_dbg(DEBUG_ANY, "ISDN_CMD_SETL3 (ch: %ld, proto: %lx)",
|
||||
cntrl->arg & 0xff, (cntrl->arg >> 8));
|
||||
|
||||
if ((cntrl->arg & 0xff) >= cs->channels) {
|
||||
if (ch >= cs->channels) {
|
||||
dev_err(cs->dev,
|
||||
"ISDN_CMD_SETL3: invalid channel (%d)\n",
|
||||
(int) cntrl->arg & 0xff);
|
||||
"ISDN_CMD_SETL3: invalid channel (%d)\n", ch);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (cntrl->arg >> 8 != ISDN_PROTO_L3_TRANS) {
|
||||
dev_err(cs->dev,
|
||||
"ISDN_CMD_SETL3: invalid protocol %lu\n",
|
||||
"ISDN_CMD_SETL3: unsupported protocol (%lu)\n",
|
||||
cntrl->arg >> 8);
|
||||
return -EINVAL;
|
||||
}
|
||||
@@ -324,149 +424,34 @@ static int command_from_LL(isdn_ctrl *cntrl)
|
||||
}
|
||||
|
||||
return retval;
|
||||
|
||||
oom:
|
||||
dev_err(bcs->cs->dev, "out of memory\n");
|
||||
for (i = 0; i < AT_NUM; ++i)
|
||||
kfree(commands[i]);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
void gigaset_i4l_cmd(struct cardstate *cs, int cmd)
|
||||
static void gigaset_i4l_cmd(struct cardstate *cs, int cmd)
|
||||
{
|
||||
isdn_if *iif = cs->iif;
|
||||
isdn_ctrl command;
|
||||
|
||||
command.driver = cs->myid;
|
||||
command.command = cmd;
|
||||
command.arg = 0;
|
||||
cs->iif.statcallb(&command);
|
||||
iif->statcallb(&command);
|
||||
}
|
||||
|
||||
void gigaset_i4l_channel_cmd(struct bc_state *bcs, int cmd)
|
||||
static void gigaset_i4l_channel_cmd(struct bc_state *bcs, int cmd)
|
||||
{
|
||||
isdn_if *iif = bcs->cs->iif;
|
||||
isdn_ctrl command;
|
||||
|
||||
command.driver = bcs->cs->myid;
|
||||
command.command = cmd;
|
||||
command.arg = bcs->channel;
|
||||
bcs->cs->iif.statcallb(&command);
|
||||
}
|
||||
|
||||
int gigaset_isdn_setup_dial(struct at_state_t *at_state, void *data)
|
||||
{
|
||||
struct bc_state *bcs = at_state->bcs;
|
||||
unsigned proto;
|
||||
const char *bc;
|
||||
size_t length[AT_NUM];
|
||||
size_t l;
|
||||
int i;
|
||||
struct setup_parm *sp = data;
|
||||
|
||||
switch (bcs->proto2) {
|
||||
case ISDN_PROTO_L2_HDLC:
|
||||
proto = 1; /* 0: Bitsynchron, 1: HDLC, 2: voice */
|
||||
break;
|
||||
case ISDN_PROTO_L2_TRANS:
|
||||
proto = 2; /* 0: Bitsynchron, 1: HDLC, 2: voice */
|
||||
break;
|
||||
default:
|
||||
dev_err(bcs->cs->dev, "%s: invalid L2 protocol: %u\n",
|
||||
__func__, bcs->proto2);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
switch (sp->si1) {
|
||||
case 1: /* audio */
|
||||
bc = "9090A3"; /* 3.1 kHz audio, A-law */
|
||||
break;
|
||||
case 7: /* data */
|
||||
default: /* hope the app knows what it is doing */
|
||||
bc = "8890"; /* unrestricted digital information */
|
||||
}
|
||||
//FIXME add missing si1 values from 1TR6, inspect si2, set HLC/LLC
|
||||
|
||||
length[AT_DIAL ] = 1 + strlen(sp->phone) + 1 + 1;
|
||||
l = strlen(sp->eazmsn);
|
||||
length[AT_MSN ] = l ? 6 + l + 1 + 1 : 0;
|
||||
length[AT_BC ] = 5 + strlen(bc) + 1 + 1;
|
||||
length[AT_PROTO] = 6 + 1 + 1 + 1; /* proto: 1 character */
|
||||
length[AT_ISO ] = 6 + 1 + 1 + 1; /* channel: 1 character */
|
||||
length[AT_TYPE ] = 6 + 1 + 1 + 1; /* call type: 1 character */
|
||||
length[AT_HLC ] = 0;
|
||||
|
||||
for (i = 0; i < AT_NUM; ++i) {
|
||||
kfree(bcs->commands[i]);
|
||||
bcs->commands[i] = NULL;
|
||||
if (length[i] &&
|
||||
!(bcs->commands[i] = kmalloc(length[i], GFP_ATOMIC))) {
|
||||
dev_err(bcs->cs->dev, "out of memory\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
}
|
||||
|
||||
/* type = 1: extern, 0: intern, 2: recall, 3: door, 4: centrex */
|
||||
if (sp->phone[0] == '*' && sp->phone[1] == '*') {
|
||||
/* internal call: translate ** prefix to CTP value */
|
||||
snprintf(bcs->commands[AT_DIAL], length[AT_DIAL],
|
||||
"D%s\r", sp->phone+2);
|
||||
strncpy(bcs->commands[AT_TYPE], "^SCTP=0\r", length[AT_TYPE]);
|
||||
} else {
|
||||
snprintf(bcs->commands[AT_DIAL], length[AT_DIAL],
|
||||
"D%s\r", sp->phone);
|
||||
strncpy(bcs->commands[AT_TYPE], "^SCTP=1\r", length[AT_TYPE]);
|
||||
}
|
||||
|
||||
if (bcs->commands[AT_MSN])
|
||||
snprintf(bcs->commands[AT_MSN], length[AT_MSN],
|
||||
"^SMSN=%s\r", sp->eazmsn);
|
||||
snprintf(bcs->commands[AT_BC ], length[AT_BC ],
|
||||
"^SBC=%s\r", bc);
|
||||
snprintf(bcs->commands[AT_PROTO], length[AT_PROTO],
|
||||
"^SBPR=%u\r", proto);
|
||||
snprintf(bcs->commands[AT_ISO ], length[AT_ISO ],
|
||||
"^SISO=%u\r", (unsigned)bcs->channel + 1);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int gigaset_isdn_setup_accept(struct at_state_t *at_state)
|
||||
{
|
||||
unsigned proto;
|
||||
size_t length[AT_NUM];
|
||||
int i;
|
||||
struct bc_state *bcs = at_state->bcs;
|
||||
|
||||
switch (bcs->proto2) {
|
||||
case ISDN_PROTO_L2_HDLC:
|
||||
proto = 1; /* 0: Bitsynchron, 1: HDLC, 2: voice */
|
||||
break;
|
||||
case ISDN_PROTO_L2_TRANS:
|
||||
proto = 2; /* 0: Bitsynchron, 1: HDLC, 2: voice */
|
||||
break;
|
||||
default:
|
||||
dev_err(at_state->cs->dev, "%s: invalid protocol: %u\n",
|
||||
__func__, bcs->proto2);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
length[AT_DIAL ] = 0;
|
||||
length[AT_MSN ] = 0;
|
||||
length[AT_BC ] = 0;
|
||||
length[AT_PROTO] = 6 + 1 + 1 + 1; /* proto: 1 character */
|
||||
length[AT_ISO ] = 6 + 1 + 1 + 1; /* channel: 1 character */
|
||||
length[AT_TYPE ] = 0;
|
||||
length[AT_HLC ] = 0;
|
||||
|
||||
for (i = 0; i < AT_NUM; ++i) {
|
||||
kfree(bcs->commands[i]);
|
||||
bcs->commands[i] = NULL;
|
||||
if (length[i] &&
|
||||
!(bcs->commands[i] = kmalloc(length[i], GFP_ATOMIC))) {
|
||||
dev_err(at_state->cs->dev, "out of memory\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
}
|
||||
|
||||
snprintf(bcs->commands[AT_PROTO], length[AT_PROTO],
|
||||
"^SBPR=%u\r", proto);
|
||||
snprintf(bcs->commands[AT_ISO ], length[AT_ISO ],
|
||||
"^SISO=%u\r", (unsigned) bcs->channel + 1);
|
||||
|
||||
return 0;
|
||||
iif->statcallb(&command);
|
||||
}
|
||||
|
||||
/**
|
||||
@@ -482,6 +467,7 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
|
||||
{
|
||||
struct cardstate *cs = at_state->cs;
|
||||
struct bc_state *bcs = at_state->bcs;
|
||||
isdn_if *iif = cs->iif;
|
||||
isdn_ctrl response;
|
||||
int retval;
|
||||
|
||||
@@ -531,7 +517,7 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
|
||||
response.arg = bcs->channel; //FIXME
|
||||
}
|
||||
response.driver = cs->myid;
|
||||
retval = cs->iif.statcallb(&response);
|
||||
retval = iif->statcallb(&response);
|
||||
gig_dbg(DEBUG_CMD, "Response: %d", retval);
|
||||
switch (retval) {
|
||||
case 0: /* no takers */
|
||||
@@ -560,16 +546,109 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
|
||||
}
|
||||
}
|
||||
|
||||
/* Set Callback function pointer */
|
||||
int gigaset_register_to_LL(struct cardstate *cs, const char *isdnid)
|
||||
/**
|
||||
* gigaset_isdn_connD() - signal D channel connect
|
||||
* @bcs: B channel descriptor structure.
|
||||
*
|
||||
* Called by main module to notify the LL that the D channel connection has
|
||||
* been established.
|
||||
*/
|
||||
void gigaset_isdn_connD(struct bc_state *bcs)
|
||||
{
|
||||
isdn_if *iif = &cs->iif;
|
||||
gig_dbg(DEBUG_CMD, "sending DCONN");
|
||||
gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DCONN);
|
||||
}
|
||||
|
||||
gig_dbg(DEBUG_ANY, "Register driver capabilities to LL");
|
||||
/**
|
||||
* gigaset_isdn_hupD() - signal D channel hangup
|
||||
* @bcs: B channel descriptor structure.
|
||||
*
|
||||
* Called by main module to notify the LL that the D channel connection has
|
||||
* been shut down.
|
||||
*/
|
||||
void gigaset_isdn_hupD(struct bc_state *bcs)
|
||||
{
|
||||
gig_dbg(DEBUG_CMD, "sending DHUP");
|
||||
gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DHUP);
|
||||
}
|
||||
|
||||
/**
|
||||
* gigaset_isdn_connB() - signal B channel connect
|
||||
* @bcs: B channel descriptor structure.
|
||||
*
|
||||
* Called by main module to notify the LL that the B channel connection has
|
||||
* been established.
|
||||
*/
|
||||
void gigaset_isdn_connB(struct bc_state *bcs)
|
||||
{
|
||||
gig_dbg(DEBUG_CMD, "sending BCONN");
|
||||
gigaset_i4l_channel_cmd(bcs, ISDN_STAT_BCONN);
|
||||
}
|
||||
|
||||
/**
|
||||
* gigaset_isdn_hupB() - signal B channel hangup
|
||||
* @bcs: B channel descriptor structure.
|
||||
*
|
||||
* Called by main module to notify the LL that the B channel connection has
|
||||
* been shut down.
|
||||
*/
|
||||
void gigaset_isdn_hupB(struct bc_state *bcs)
|
||||
{
|
||||
gig_dbg(DEBUG_CMD, "sending BHUP");
|
||||
gigaset_i4l_channel_cmd(bcs, ISDN_STAT_BHUP);
|
||||
}
|
||||
|
||||
/**
|
||||
* gigaset_isdn_start() - signal device availability
|
||||
* @cs: device descriptor structure.
|
||||
*
|
||||
* Called by main module to notify the LL that the device is available for
|
||||
* use.
|
||||
*/
|
||||
void gigaset_isdn_start(struct cardstate *cs)
|
||||
{
|
||||
gig_dbg(DEBUG_CMD, "sending RUN");
|
||||
gigaset_i4l_cmd(cs, ISDN_STAT_RUN);
|
||||
}
|
||||
|
||||
/**
|
||||
* gigaset_isdn_stop() - signal device unavailability
|
||||
* @cs: device descriptor structure.
|
||||
*
|
||||
* Called by main module to notify the LL that the device is no longer
|
||||
* available for use.
|
||||
*/
|
||||
void gigaset_isdn_stop(struct cardstate *cs)
|
||||
{
|
||||
gig_dbg(DEBUG_CMD, "sending STOP");
|
||||
gigaset_i4l_cmd(cs, ISDN_STAT_STOP);
|
||||
}
|
||||
|
||||
/**
|
||||
* gigaset_isdn_register() - register to LL
|
||||
* @cs: device descriptor structure.
|
||||
* @isdnid: device name.
|
||||
*
|
||||
* Called by main module to register the device with the LL.
|
||||
*
|
||||
* Return value: 1 for success, 0 for failure
|
||||
*/
|
||||
int gigaset_isdn_register(struct cardstate *cs, const char *isdnid)
|
||||
{
|
||||
isdn_if *iif;
|
||||
|
||||
pr_info("ISDN4Linux interface\n");
|
||||
|
||||
iif = kmalloc(sizeof *iif, GFP_KERNEL);
|
||||
if (!iif) {
|
||||
pr_err("out of memory\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (snprintf(iif->id, sizeof iif->id, "%s_%u", isdnid, cs->minor_index)
|
||||
>= sizeof iif->id) {
|
||||
pr_err("ID too long: %s\n", isdnid);
|
||||
kfree(iif);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@@ -593,9 +672,26 @@ int gigaset_register_to_LL(struct cardstate *cs, const char *isdnid)
|
||||
|
||||
if (!register_isdn(iif)) {
|
||||
pr_err("register_isdn failed\n");
|
||||
kfree(iif);
|
||||
return 0;
|
||||
}
|
||||
|
||||
cs->iif = iif;
|
||||
cs->myid = iif->channels; /* Set my device id */
|
||||
cs->hw_hdr_len = HW_HDR_LEN;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/**
|
||||
* gigaset_isdn_unregister() - unregister from LL
|
||||
* @cs: device descriptor structure.
|
||||
*
|
||||
* Called by main module to unregister the device from the LL.
|
||||
*/
|
||||
void gigaset_isdn_unregister(struct cardstate *cs)
|
||||
{
|
||||
gig_dbg(DEBUG_CMD, "sending UNLOAD");
|
||||
gigaset_i4l_cmd(cs, ISDN_STAT_UNLOAD);
|
||||
kfree(cs->iif);
|
||||
cs->iif = NULL;
|
||||
}
|
||||
|
||||
Посилання в новій задачі
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