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path: root/drivers/isdn/sc/command.c
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Diffstat (limited to 'drivers/isdn/sc/command.c')
-rw-r--r--drivers/isdn/sc/command.c363
1 files changed, 363 insertions, 0 deletions
diff --git a/drivers/isdn/sc/command.c b/drivers/isdn/sc/command.c
new file mode 100644
index 000000000..4a4e66152
--- /dev/null
+++ b/drivers/isdn/sc/command.c
@@ -0,0 +1,363 @@
+/* $Id: command.c,v 1.4.10.1 2001/09/23 22:24:59 kai Exp $
+ *
+ * Copyright (C) 1996 SpellCaster Telecommunications Inc.
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ * For more information, please contact gpl-info@spellcast.com or write:
+ *
+ * SpellCaster Telecommunications Inc.
+ * 5621 Finch Avenue East, Unit #3
+ * Scarborough, Ontario Canada
+ * M1B 2T9
+ * +1 (416) 297-8565
+ * +1 (416) 297-6433 Facsimile
+ */
+
+#include <linux/module.h>
+#include "includes.h" /* This must be first */
+#include "hardware.h"
+#include "message.h"
+#include "card.h"
+#include "scioc.h"
+
+static int dial(int card, unsigned long channel, setup_parm setup);
+static int hangup(int card, unsigned long channel);
+static int answer(int card, unsigned long channel);
+static int clreaz(int card, unsigned long channel);
+static int seteaz(int card, unsigned long channel, char *);
+static int setl2(int card, unsigned long arg);
+static int setl3(int card, unsigned long arg);
+static int acceptb(int card, unsigned long channel);
+
+#ifdef DEBUG
+/*
+ * Translate command codes to strings
+ */
+static char *commands[] = { "ISDN_CMD_IOCTL",
+ "ISDN_CMD_DIAL",
+ "ISDN_CMD_ACCEPTB",
+ "ISDN_CMD_ACCEPTB",
+ "ISDN_CMD_HANGUP",
+ "ISDN_CMD_CLREAZ",
+ "ISDN_CMD_SETEAZ",
+ NULL,
+ NULL,
+ NULL,
+ "ISDN_CMD_SETL2",
+ NULL,
+ "ISDN_CMD_SETL3",
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL, };
+
+/*
+ * Translates ISDN4Linux protocol codes to strings for debug messages
+ */
+static char *l3protos[] = { "ISDN_PROTO_L3_TRANS" };
+static char *l2protos[] = { "ISDN_PROTO_L2_X75I",
+ "ISDN_PROTO_L2_X75UI",
+ "ISDN_PROTO_L2_X75BUI",
+ "ISDN_PROTO_L2_HDLC",
+ "ISDN_PROTO_L2_TRANS" };
+#endif
+
+int get_card_from_id(int driver)
+{
+ int i;
+
+ for (i = 0; i < cinst; i++) {
+ if (sc_adapter[i]->driverId == driver)
+ return i;
+ }
+ return -ENODEV;
+}
+
+/*
+ * command
+ */
+
+int command(isdn_ctrl *cmd)
+{
+ int card;
+
+ card = get_card_from_id(cmd->driver);
+ if (!IS_VALID_CARD(card)) {
+ pr_debug("Invalid param: %d is not a valid card id\n", card);
+ return -ENODEV;
+ }
+
+ /*
+ * Dispatch the command
+ */
+ switch (cmd->command) {
+ case ISDN_CMD_IOCTL:
+ {
+ unsigned long cmdptr;
+ scs_ioctl ioc;
+
+ memcpy(&cmdptr, cmd->parm.num, sizeof(unsigned long));
+ if (copy_from_user(&ioc, (scs_ioctl __user *)cmdptr,
+ sizeof(scs_ioctl))) {
+ pr_debug("%s: Failed to verify user space 0x%lx\n",
+ sc_adapter[card]->devicename, cmdptr);
+ return -EFAULT;
+ }
+ return sc_ioctl(card, &ioc);
+ }
+ case ISDN_CMD_DIAL:
+ return dial(card, cmd->arg, cmd->parm.setup);
+ case ISDN_CMD_HANGUP:
+ return hangup(card, cmd->arg);
+ case ISDN_CMD_ACCEPTD:
+ return answer(card, cmd->arg);
+ case ISDN_CMD_ACCEPTB:
+ return acceptb(card, cmd->arg);
+ case ISDN_CMD_CLREAZ:
+ return clreaz(card, cmd->arg);
+ case ISDN_CMD_SETEAZ:
+ return seteaz(card, cmd->arg, cmd->parm.num);
+ case ISDN_CMD_SETL2:
+ return setl2(card, cmd->arg);
+ case ISDN_CMD_SETL3:
+ return setl3(card, cmd->arg);
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+/*
+ * start the onboard firmware
+ */
+int startproc(int card)
+{
+ int status;
+
+ if (!IS_VALID_CARD(card)) {
+ pr_debug("Invalid param: %d is not a valid card id\n", card);
+ return -ENODEV;
+ }
+
+ /*
+ * send start msg
+ */
+ status = sendmessage(card, CMPID, cmReqType2,
+ cmReqClass0,
+ cmReqStartProc,
+ 0, 0, NULL);
+ pr_debug("%s: Sent startProc\n", sc_adapter[card]->devicename);
+
+ return status;
+}
+
+
+/*
+ * Dials the number passed in
+ */
+static int dial(int card, unsigned long channel, setup_parm setup)
+{
+ int status;
+ char Phone[48];
+
+ if (!IS_VALID_CARD(card)) {
+ pr_debug("Invalid param: %d is not a valid card id\n", card);
+ return -ENODEV;
+ }
+
+ /*extract ISDN number to dial from eaz/msn string*/
+ strcpy(Phone, setup.phone);
+
+ /*send the connection message*/
+ status = sendmessage(card, CEPID, ceReqTypePhy,
+ ceReqClass1,
+ ceReqPhyConnect,
+ (unsigned char)channel + 1,
+ strlen(Phone),
+ (unsigned int *)Phone);
+
+ pr_debug("%s: Dialing %s on channel %lu\n",
+ sc_adapter[card]->devicename, Phone, channel + 1);
+
+ return status;
+}
+
+/*
+ * Answer an incoming call
+ */
+static int answer(int card, unsigned long channel)
+{
+ if (!IS_VALID_CARD(card)) {
+ pr_debug("Invalid param: %d is not a valid card id\n", card);
+ return -ENODEV;
+ }
+
+ if (setup_buffers(card, channel + 1)) {
+ hangup(card, channel + 1);
+ return -ENOBUFS;
+ }
+
+ indicate_status(card, ISDN_STAT_BCONN, channel, NULL);
+ pr_debug("%s: Answered incoming call on channel %lu\n",
+ sc_adapter[card]->devicename, channel + 1);
+ return 0;
+}
+
+/*
+ * Hangup up the call on specified channel
+ */
+static int hangup(int card, unsigned long channel)
+{
+ int status;
+
+ if (!IS_VALID_CARD(card)) {
+ pr_debug("Invalid param: %d is not a valid card id\n", card);
+ return -ENODEV;
+ }
+
+ status = sendmessage(card, CEPID, ceReqTypePhy,
+ ceReqClass1,
+ ceReqPhyDisconnect,
+ (unsigned char)channel + 1,
+ 0,
+ NULL);
+ pr_debug("%s: Sent HANGUP message to channel %lu\n",
+ sc_adapter[card]->devicename, channel + 1);
+ return status;
+}
+
+/*
+ * Set the layer 2 protocol (X.25, HDLC, Raw)
+ */
+static int setl2(int card, unsigned long arg)
+{
+ int status = 0;
+ int protocol, channel;
+
+ if (!IS_VALID_CARD(card)) {
+ pr_debug("Invalid param: %d is not a valid card id\n", card);
+ return -ENODEV;
+ }
+ protocol = arg >> 8;
+ channel = arg & 0xff;
+ sc_adapter[card]->channel[channel].l2_proto = protocol;
+
+ /*
+ * check that the adapter is also set to the correct protocol
+ */
+ pr_debug("%s: Sending GetFrameFormat for channel %d\n",
+ sc_adapter[card]->devicename, channel + 1);
+ status = sendmessage(card, CEPID, ceReqTypeCall,
+ ceReqClass0,
+ ceReqCallGetFrameFormat,
+ (unsigned char)channel + 1,
+ 1,
+ (unsigned int *)protocol);
+ if (status)
+ return status;
+ return 0;
+}
+
+/*
+ * Set the layer 3 protocol
+ */
+static int setl3(int card, unsigned long channel)
+{
+ int protocol = channel >> 8;
+
+ if (!IS_VALID_CARD(card)) {
+ pr_debug("Invalid param: %d is not a valid card id\n", card);
+ return -ENODEV;
+ }
+
+ sc_adapter[card]->channel[channel].l3_proto = protocol;
+ return 0;
+}
+
+static int acceptb(int card, unsigned long channel)
+{
+ if (!IS_VALID_CARD(card)) {
+ pr_debug("Invalid param: %d is not a valid card id\n", card);
+ return -ENODEV;
+ }
+
+ if (setup_buffers(card, channel + 1))
+ {
+ hangup(card, channel + 1);
+ return -ENOBUFS;
+ }
+
+ pr_debug("%s: B-Channel connection accepted on channel %lu\n",
+ sc_adapter[card]->devicename, channel + 1);
+ indicate_status(card, ISDN_STAT_BCONN, channel, NULL);
+ return 0;
+}
+
+static int clreaz(int card, unsigned long arg)
+{
+ if (!IS_VALID_CARD(card)) {
+ pr_debug("Invalid param: %d is not a valid card id\n", card);
+ return -ENODEV;
+ }
+
+ strcpy(sc_adapter[card]->channel[arg].eazlist, "");
+ sc_adapter[card]->channel[arg].eazclear = 1;
+ pr_debug("%s: EAZ List cleared for channel %lu\n",
+ sc_adapter[card]->devicename, arg + 1);
+ return 0;
+}
+
+static int seteaz(int card, unsigned long arg, char *num)
+{
+ if (!IS_VALID_CARD(card)) {
+ pr_debug("Invalid param: %d is not a valid card id\n", card);
+ return -ENODEV;
+ }
+
+ strcpy(sc_adapter[card]->channel[arg].eazlist, num);
+ sc_adapter[card]->channel[arg].eazclear = 0;
+ pr_debug("%s: EAZ list for channel %lu set to: %s\n",
+ sc_adapter[card]->devicename, arg + 1,
+ sc_adapter[card]->channel[arg].eazlist);
+ return 0;
+}
+
+int reset(int card)
+{
+ unsigned long flags;
+
+ if (!IS_VALID_CARD(card)) {
+ pr_debug("Invalid param: %d is not a valid card id\n", card);
+ return -ENODEV;
+ }
+
+ indicate_status(card, ISDN_STAT_STOP, 0, NULL);
+
+ if (sc_adapter[card]->EngineUp) {
+ del_timer(&sc_adapter[card]->stat_timer);
+ }
+
+ sc_adapter[card]->EngineUp = 0;
+
+ spin_lock_irqsave(&sc_adapter[card]->lock, flags);
+ init_timer(&sc_adapter[card]->reset_timer);
+ sc_adapter[card]->reset_timer.function = sc_check_reset;
+ sc_adapter[card]->reset_timer.data = card;
+ sc_adapter[card]->reset_timer.expires = jiffies + CHECKRESET_TIME;
+ add_timer(&sc_adapter[card]->reset_timer);
+ spin_unlock_irqrestore(&sc_adapter[card]->lock, flags);
+
+ outb(0x1, sc_adapter[card]->ioport[SFT_RESET]);
+
+ pr_debug("%s: Adapter Reset\n", sc_adapter[card]->devicename);
+ return 0;
+}
+
+void flushreadfifo(int card)
+{
+ while (inb(sc_adapter[card]->ioport[FIFO_STATUS]) & RF_HAS_DATA)
+ inb(sc_adapter[card]->ioport[FIFO_READ]);
+}
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