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path: root/drivers/isdn/hisax/elsa_ser.c
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Diffstat (limited to 'drivers/isdn/hisax/elsa_ser.c')
-rw-r--r--drivers/isdn/hisax/elsa_ser.c659
1 files changed, 0 insertions, 659 deletions
diff --git a/drivers/isdn/hisax/elsa_ser.c b/drivers/isdn/hisax/elsa_ser.c
deleted file mode 100644
index 999effd7a276..000000000000
--- a/drivers/isdn/hisax/elsa_ser.c
+++ /dev/null
@@ -1,659 +0,0 @@
-/* $Id: elsa_ser.c,v 2.14.2.3 2004/02/11 13:21:33 keil Exp $
- *
- * stuff for the serial modem on ELSA cards
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- *
- */
-
-#include <linux/serial.h>
-#include <linux/serial_reg.h>
-#include <linux/slab.h>
-
-#define MAX_MODEM_BUF 256
-#define WAKEUP_CHARS (MAX_MODEM_BUF / 2)
-#define RS_ISR_PASS_LIMIT 256
-#define BASE_BAUD (1843200 / 16)
-
-//#define SERIAL_DEBUG_OPEN 1
-//#define SERIAL_DEBUG_INTR 1
-//#define SERIAL_DEBUG_FLOW 1
-#undef SERIAL_DEBUG_OPEN
-#undef SERIAL_DEBUG_INTR
-#undef SERIAL_DEBUG_FLOW
-#undef SERIAL_DEBUG_REG
-//#define SERIAL_DEBUG_REG 1
-
-#ifdef SERIAL_DEBUG_REG
-static u_char deb[32];
-const char *ModemIn[] = {"RBR", "IER", "IIR", "LCR", "MCR", "LSR", "MSR", "SCR"};
-const char *ModemOut[] = {"THR", "IER", "FCR", "LCR", "MCR", "LSR", "MSR", "SCR"};
-#endif
-
-static char *MInit_1 = "AT&F&C1E0&D2\r\0";
-static char *MInit_2 = "ATL2M1S64=13\r\0";
-static char *MInit_3 = "AT+FCLASS=0\r\0";
-static char *MInit_4 = "ATV1S2=128X1\r\0";
-static char *MInit_5 = "AT\\V8\\N3\r\0";
-static char *MInit_6 = "ATL0M0&G0%E1\r\0";
-static char *MInit_7 = "AT%L1%M0%C3\r\0";
-
-static char *MInit_speed28800 = "AT%G0%B28800\r\0";
-
-static char *MInit_dialout = "ATs7=60 x1 d\r\0";
-static char *MInit_dialin = "ATs7=60 x1 a\r\0";
-
-
-static inline unsigned int serial_in(struct IsdnCardState *cs, int offset)
-{
-#ifdef SERIAL_DEBUG_REG
- u_int val = inb(cs->hw.elsa.base + 8 + offset);
- debugl1(cs, "in %s %02x", ModemIn[offset], val);
- return (val);
-#else
- return inb(cs->hw.elsa.base + 8 + offset);
-#endif
-}
-
-static inline unsigned int serial_inp(struct IsdnCardState *cs, int offset)
-{
-#ifdef SERIAL_DEBUG_REG
-#ifdef ELSA_SERIAL_NOPAUSE_IO
- u_int val = inb(cs->hw.elsa.base + 8 + offset);
- debugl1(cs, "inp %s %02x", ModemIn[offset], val);
-#else
- u_int val = inb_p(cs->hw.elsa.base + 8 + offset);
- debugl1(cs, "inP %s %02x", ModemIn[offset], val);
-#endif
- return (val);
-#else
-#ifdef ELSA_SERIAL_NOPAUSE_IO
- return inb(cs->hw.elsa.base + 8 + offset);
-#else
- return inb_p(cs->hw.elsa.base + 8 + offset);
-#endif
-#endif
-}
-
-static inline void serial_out(struct IsdnCardState *cs, int offset, int value)
-{
-#ifdef SERIAL_DEBUG_REG
- debugl1(cs, "out %s %02x", ModemOut[offset], value);
-#endif
- outb(value, cs->hw.elsa.base + 8 + offset);
-}
-
-static inline void serial_outp(struct IsdnCardState *cs, int offset,
- int value)
-{
-#ifdef SERIAL_DEBUG_REG
-#ifdef ELSA_SERIAL_NOPAUSE_IO
- debugl1(cs, "outp %s %02x", ModemOut[offset], value);
-#else
- debugl1(cs, "outP %s %02x", ModemOut[offset], value);
-#endif
-#endif
-#ifdef ELSA_SERIAL_NOPAUSE_IO
- outb(value, cs->hw.elsa.base + 8 + offset);
-#else
- outb_p(value, cs->hw.elsa.base + 8 + offset);
-#endif
-}
-
-/*
- * This routine is called to set the UART divisor registers to match
- * the specified baud rate for a serial port.
- */
-static void change_speed(struct IsdnCardState *cs, int baud)
-{
- int quot = 0, baud_base;
- unsigned cval, fcr = 0;
-
-
- /* byte size and parity */
- cval = 0x03;
- /* Determine divisor based on baud rate */
- baud_base = BASE_BAUD;
- quot = baud_base / baud;
- /* If the quotient is ever zero, default to 9600 bps */
- if (!quot)
- quot = baud_base / 9600;
-
- /* Set up FIFO's */
- if ((baud_base / quot) < 2400)
- fcr = UART_FCR_ENABLE_FIFO | UART_FCR_TRIGGER_1;
- else
- fcr = UART_FCR_ENABLE_FIFO | UART_FCR_TRIGGER_8;
- serial_outp(cs, UART_FCR, fcr);
- /* CTS flow control flag and modem status interrupts */
- cs->hw.elsa.IER &= ~UART_IER_MSI;
- cs->hw.elsa.IER |= UART_IER_MSI;
- serial_outp(cs, UART_IER, cs->hw.elsa.IER);
-
- debugl1(cs, "modem quot=0x%x", quot);
- serial_outp(cs, UART_LCR, cval | UART_LCR_DLAB);/* set DLAB */
- serial_outp(cs, UART_DLL, quot & 0xff); /* LS of divisor */
- serial_outp(cs, UART_DLM, quot >> 8); /* MS of divisor */
- serial_outp(cs, UART_LCR, cval); /* reset DLAB */
- serial_inp(cs, UART_RX);
-}
-
-static int mstartup(struct IsdnCardState *cs)
-{
- int retval = 0;
-
- /*
- * Clear the FIFO buffers and disable them
- * (they will be reenabled in change_speed())
- */
- serial_outp(cs, UART_FCR, (UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT));
-
- /*
- * At this point there's no way the LSR could still be 0xFF;
- * if it is, then bail out, because there's likely no UART
- * here.
- */
- if (serial_inp(cs, UART_LSR) == 0xff) {
- retval = -ENODEV;
- goto errout;
- }
-
- /*
- * Clear the interrupt registers.
- */
- (void) serial_inp(cs, UART_RX);
- (void) serial_inp(cs, UART_IIR);
- (void) serial_inp(cs, UART_MSR);
-
- /*
- * Now, initialize the UART
- */
- serial_outp(cs, UART_LCR, UART_LCR_WLEN8); /* reset DLAB */
-
- cs->hw.elsa.MCR = 0;
- cs->hw.elsa.MCR = UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2;
- serial_outp(cs, UART_MCR, cs->hw.elsa.MCR);
-
- /*
- * Finally, enable interrupts
- */
- cs->hw.elsa.IER = UART_IER_MSI | UART_IER_RLSI | UART_IER_RDI;
- serial_outp(cs, UART_IER, cs->hw.elsa.IER); /* enable interrupts */
-
- /*
- * And clear the interrupt registers again for luck.
- */
- (void)serial_inp(cs, UART_LSR);
- (void)serial_inp(cs, UART_RX);
- (void)serial_inp(cs, UART_IIR);
- (void)serial_inp(cs, UART_MSR);
-
- cs->hw.elsa.transcnt = cs->hw.elsa.transp = 0;
- cs->hw.elsa.rcvcnt = cs->hw.elsa.rcvp = 0;
-
- /*
- * and set the speed of the serial port
- */
- change_speed(cs, BASE_BAUD);
- cs->hw.elsa.MFlag = 1;
-errout:
- return retval;
-}
-
-/*
- * This routine will shutdown a serial port; interrupts are disabled, and
- * DTR is dropped if the hangup on close termio flag is on.
- */
-static void mshutdown(struct IsdnCardState *cs)
-{
-
-#ifdef SERIAL_DEBUG_OPEN
- printk(KERN_DEBUG"Shutting down serial ....");
-#endif
-
- /*
- * clear delta_msr_wait queue to avoid mem leaks: we may free the irq
- * here so the queue might never be waken up
- */
-
- cs->hw.elsa.IER = 0;
- serial_outp(cs, UART_IER, 0x00); /* disable all intrs */
- cs->hw.elsa.MCR &= ~UART_MCR_OUT2;
-
- /* disable break condition */
- serial_outp(cs, UART_LCR, serial_inp(cs, UART_LCR) & ~UART_LCR_SBC);
-
- cs->hw.elsa.MCR &= ~(UART_MCR_DTR | UART_MCR_RTS);
- serial_outp(cs, UART_MCR, cs->hw.elsa.MCR);
-
- /* disable FIFO's */
- serial_outp(cs, UART_FCR, (UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT));
- serial_inp(cs, UART_RX); /* read data port to reset things */
-
-#ifdef SERIAL_DEBUG_OPEN
- printk(" done\n");
-#endif
-}
-
-static inline int
-write_modem(struct BCState *bcs) {
- int ret = 0;
- struct IsdnCardState *cs = bcs->cs;
- int count, len, fp;
-
- if (!bcs->tx_skb)
- return 0;
- if (bcs->tx_skb->len <= 0)
- return 0;
- len = bcs->tx_skb->len;
- if (len > MAX_MODEM_BUF - cs->hw.elsa.transcnt)
- len = MAX_MODEM_BUF - cs->hw.elsa.transcnt;
- fp = cs->hw.elsa.transcnt + cs->hw.elsa.transp;
- fp &= (MAX_MODEM_BUF - 1);
- count = len;
- if (count > MAX_MODEM_BUF - fp) {
- count = MAX_MODEM_BUF - fp;
- skb_copy_from_linear_data(bcs->tx_skb,
- cs->hw.elsa.transbuf + fp, count);
- skb_pull(bcs->tx_skb, count);
- cs->hw.elsa.transcnt += count;
- ret = count;
- count = len - count;
- fp = 0;
- }
- skb_copy_from_linear_data(bcs->tx_skb,
- cs->hw.elsa.transbuf + fp, count);
- skb_pull(bcs->tx_skb, count);
- cs->hw.elsa.transcnt += count;
- ret += count;
-
- if (cs->hw.elsa.transcnt &&
- !(cs->hw.elsa.IER & UART_IER_THRI)) {
- cs->hw.elsa.IER |= UART_IER_THRI;
- serial_outp(cs, UART_IER, cs->hw.elsa.IER);
- }
- return (ret);
-}
-
-static inline void
-modem_fill(struct BCState *bcs) {
-
- if (bcs->tx_skb) {
- if (bcs->tx_skb->len) {
- write_modem(bcs);
- return;
- } else {
- if (test_bit(FLG_LLI_L1WAKEUP, &bcs->st->lli.flag) &&
- (PACKET_NOACK != bcs->tx_skb->pkt_type)) {
- u_long flags;
- spin_lock_irqsave(&bcs->aclock, flags);
- bcs->ackcnt += bcs->hw.hscx.count;
- spin_unlock_irqrestore(&bcs->aclock, flags);
- schedule_event(bcs, B_ACKPENDING);
- }
- dev_kfree_skb_any(bcs->tx_skb);
- bcs->tx_skb = NULL;
- }
- }
- if ((bcs->tx_skb = skb_dequeue(&bcs->squeue))) {
- bcs->hw.hscx.count = 0;
- test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
- write_modem(bcs);
- } else {
- test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
- schedule_event(bcs, B_XMTBUFREADY);
- }
-}
-
-static inline void receive_chars(struct IsdnCardState *cs,
- int *status)
-{
- unsigned char ch;
- struct sk_buff *skb;
-
- do {
- ch = serial_in(cs, UART_RX);
- if (cs->hw.elsa.rcvcnt >= MAX_MODEM_BUF)
- break;
- cs->hw.elsa.rcvbuf[cs->hw.elsa.rcvcnt++] = ch;
-#ifdef SERIAL_DEBUG_INTR
- printk("DR%02x:%02x...", ch, *status);
-#endif
- if (*status & (UART_LSR_BI | UART_LSR_PE |
- UART_LSR_FE | UART_LSR_OE)) {
-
-#ifdef SERIAL_DEBUG_INTR
- printk("handling exept....");
-#endif
- }
- *status = serial_inp(cs, UART_LSR);
- } while (*status & UART_LSR_DR);
- if (cs->hw.elsa.MFlag == 2) {
- if (!(skb = dev_alloc_skb(cs->hw.elsa.rcvcnt)))
- printk(KERN_WARNING "ElsaSER: receive out of memory\n");
- else {
- skb_put_data(skb, cs->hw.elsa.rcvbuf,
- cs->hw.elsa.rcvcnt);
- skb_queue_tail(&cs->hw.elsa.bcs->rqueue, skb);
- }
- schedule_event(cs->hw.elsa.bcs, B_RCVBUFREADY);
- } else {
- char tmp[128];
- char *t = tmp;
-
- t += sprintf(t, "modem read cnt %d", cs->hw.elsa.rcvcnt);
- QuickHex(t, cs->hw.elsa.rcvbuf, cs->hw.elsa.rcvcnt);
- debugl1(cs, "%s", tmp);
- }
- cs->hw.elsa.rcvcnt = 0;
-}
-
-static inline void transmit_chars(struct IsdnCardState *cs, int *intr_done)
-{
- int count;
-
- debugl1(cs, "transmit_chars: p(%x) cnt(%x)", cs->hw.elsa.transp,
- cs->hw.elsa.transcnt);
-
- if (cs->hw.elsa.transcnt <= 0) {
- cs->hw.elsa.IER &= ~UART_IER_THRI;
- serial_out(cs, UART_IER, cs->hw.elsa.IER);
- return;
- }
- count = 16;
- do {
- serial_outp(cs, UART_TX, cs->hw.elsa.transbuf[cs->hw.elsa.transp++]);
- if (cs->hw.elsa.transp >= MAX_MODEM_BUF)
- cs->hw.elsa.transp = 0;
- if (--cs->hw.elsa.transcnt <= 0)
- break;
- } while (--count > 0);
- if ((cs->hw.elsa.transcnt < WAKEUP_CHARS) && (cs->hw.elsa.MFlag == 2))
- modem_fill(cs->hw.elsa.bcs);
-
-#ifdef SERIAL_DEBUG_INTR
- printk("THRE...");
-#endif
- if (intr_done)
- *intr_done = 0;
- if (cs->hw.elsa.transcnt <= 0) {
- cs->hw.elsa.IER &= ~UART_IER_THRI;
- serial_outp(cs, UART_IER, cs->hw.elsa.IER);
- }
-}
-
-
-static void rs_interrupt_elsa(struct IsdnCardState *cs)
-{
- int status, iir, msr;
- int pass_counter = 0;
-
-#ifdef SERIAL_DEBUG_INTR
- printk(KERN_DEBUG "rs_interrupt_single(%d)...", cs->irq);
-#endif
-
- do {
- status = serial_inp(cs, UART_LSR);
- debugl1(cs, "rs LSR %02x", status);
-#ifdef SERIAL_DEBUG_INTR
- printk("status = %x...", status);
-#endif
- if (status & UART_LSR_DR)
- receive_chars(cs, &status);
- if (status & UART_LSR_THRE)
- transmit_chars(cs, NULL);
- if (pass_counter++ > RS_ISR_PASS_LIMIT) {
- printk("rs_single loop break.\n");
- break;
- }
- iir = serial_inp(cs, UART_IIR);
- debugl1(cs, "rs IIR %02x", iir);
- if ((iir & 0xf) == 0) {
- msr = serial_inp(cs, UART_MSR);
- debugl1(cs, "rs MSR %02x", msr);
- }
- } while (!(iir & UART_IIR_NO_INT));
-#ifdef SERIAL_DEBUG_INTR
- printk("end.\n");
-#endif
-}
-
-extern int open_hscxstate(struct IsdnCardState *cs, struct BCState *bcs);
-extern void modehscx(struct BCState *bcs, int mode, int bc);
-extern void hscx_l2l1(struct PStack *st, int pr, void *arg);
-
-static void
-close_elsastate(struct BCState *bcs)
-{
- modehscx(bcs, 0, bcs->channel);
- if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
- if (bcs->hw.hscx.rcvbuf) {
- if (bcs->mode != L1_MODE_MODEM)
- kfree(bcs->hw.hscx.rcvbuf);
- bcs->hw.hscx.rcvbuf = NULL;
- }
- skb_queue_purge(&bcs->rqueue);
- skb_queue_purge(&bcs->squeue);
- if (bcs->tx_skb) {
- dev_kfree_skb_any(bcs->tx_skb);
- bcs->tx_skb = NULL;
- test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
- }
- }
-}
-
-static void
-modem_write_cmd(struct IsdnCardState *cs, u_char *buf, int len) {
- int count, fp;
- u_char *msg = buf;
-
- if (!len)
- return;
- if (len > (MAX_MODEM_BUF - cs->hw.elsa.transcnt)) {
- return;
- }
- fp = cs->hw.elsa.transcnt + cs->hw.elsa.transp;
- fp &= (MAX_MODEM_BUF - 1);
- count = len;
- if (count > MAX_MODEM_BUF - fp) {
- count = MAX_MODEM_BUF - fp;
- memcpy(cs->hw.elsa.transbuf + fp, msg, count);
- cs->hw.elsa.transcnt += count;
- msg += count;
- count = len - count;
- fp = 0;
- }
- memcpy(cs->hw.elsa.transbuf + fp, msg, count);
- cs->hw.elsa.transcnt += count;
- if (cs->hw.elsa.transcnt &&
- !(cs->hw.elsa.IER & UART_IER_THRI)) {
- cs->hw.elsa.IER |= UART_IER_THRI;
- serial_outp(cs, UART_IER, cs->hw.elsa.IER);
- }
-}
-
-static void
-modem_set_init(struct IsdnCardState *cs) {
- int timeout;
-
-#define RCV_DELAY 20
- modem_write_cmd(cs, MInit_1, strlen(MInit_1));
- timeout = 1000;
- while (timeout-- && cs->hw.elsa.transcnt)
- udelay(1000);
- debugl1(cs, "msi tout=%d", timeout);
- mdelay(RCV_DELAY);
- modem_write_cmd(cs, MInit_2, strlen(MInit_2));
- timeout = 1000;
- while (timeout-- && cs->hw.elsa.transcnt)
- udelay(1000);
- debugl1(cs, "msi tout=%d", timeout);
- mdelay(RCV_DELAY);
- modem_write_cmd(cs, MInit_3, strlen(MInit_3));
- timeout = 1000;
- while (timeout-- && cs->hw.elsa.transcnt)
- udelay(1000);
- debugl1(cs, "msi tout=%d", timeout);
- mdelay(RCV_DELAY);
- modem_write_cmd(cs, MInit_4, strlen(MInit_4));
- timeout = 1000;
- while (timeout-- && cs->hw.elsa.transcnt)
- udelay(1000);
- debugl1(cs, "msi tout=%d", timeout);
- mdelay(RCV_DELAY);
- modem_write_cmd(cs, MInit_5, strlen(MInit_5));
- timeout = 1000;
- while (timeout-- && cs->hw.elsa.transcnt)
- udelay(1000);
- debugl1(cs, "msi tout=%d", timeout);
- mdelay(RCV_DELAY);
- modem_write_cmd(cs, MInit_6, strlen(MInit_6));
- timeout = 1000;
- while (timeout-- && cs->hw.elsa.transcnt)
- udelay(1000);
- debugl1(cs, "msi tout=%d", timeout);
- mdelay(RCV_DELAY);
- modem_write_cmd(cs, MInit_7, strlen(MInit_7));
- timeout = 1000;
- while (timeout-- && cs->hw.elsa.transcnt)
- udelay(1000);
- debugl1(cs, "msi tout=%d", timeout);
- mdelay(RCV_DELAY);
-}
-
-static void
-modem_set_dial(struct IsdnCardState *cs, int outgoing) {
- int timeout;
-#define RCV_DELAY 20
-
- modem_write_cmd(cs, MInit_speed28800, strlen(MInit_speed28800));
- timeout = 1000;
- while (timeout-- && cs->hw.elsa.transcnt)
- udelay(1000);
- debugl1(cs, "msi tout=%d", timeout);
- mdelay(RCV_DELAY);
- if (outgoing)
- modem_write_cmd(cs, MInit_dialout, strlen(MInit_dialout));
- else
- modem_write_cmd(cs, MInit_dialin, strlen(MInit_dialin));
- timeout = 1000;
- while (timeout-- && cs->hw.elsa.transcnt)
- udelay(1000);
- debugl1(cs, "msi tout=%d", timeout);
- mdelay(RCV_DELAY);
-}
-
-static void
-modem_l2l1(struct PStack *st, int pr, void *arg)
-{
- struct BCState *bcs = st->l1.bcs;
- struct sk_buff *skb = arg;
- u_long flags;
-
- if (pr == (PH_DATA | REQUEST)) {
- spin_lock_irqsave(&bcs->cs->lock, flags);
- if (bcs->tx_skb) {
- skb_queue_tail(&bcs->squeue, skb);
- } else {
- bcs->tx_skb = skb;
- test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
- bcs->hw.hscx.count = 0;
- write_modem(bcs);
- }
- spin_unlock_irqrestore(&bcs->cs->lock, flags);
- } else if (pr == (PH_ACTIVATE | REQUEST)) {
- test_and_set_bit(BC_FLG_ACTIV, &bcs->Flag);
- st->l1.l1l2(st, PH_ACTIVATE | CONFIRM, NULL);
- set_arcofi(bcs->cs, st->l1.bc);
- mstartup(bcs->cs);
- modem_set_dial(bcs->cs, test_bit(FLG_ORIG, &st->l2.flag));
- bcs->cs->hw.elsa.MFlag = 2;
- } else if (pr == (PH_DEACTIVATE | REQUEST)) {
- test_and_clear_bit(BC_FLG_ACTIV, &bcs->Flag);
- bcs->cs->dc.isac.arcofi_bc = st->l1.bc;
- arcofi_fsm(bcs->cs, ARCOFI_START, &ARCOFI_XOP_0);
- wait_event_interruptible(bcs->cs->dc.isac.arcofi_wait,
- bcs->cs->dc.isac.arcofi_state == ARCOFI_NOP);
- bcs->cs->hw.elsa.MFlag = 1;
- } else {
- printk(KERN_WARNING "ElsaSer: unknown pr %x\n", pr);
- }
-}
-
-static int
-setstack_elsa(struct PStack *st, struct BCState *bcs)
-{
-
- bcs->channel = st->l1.bc;
- switch (st->l1.mode) {
- case L1_MODE_HDLC:
- case L1_MODE_TRANS:
- if (open_hscxstate(st->l1.hardware, bcs))
- return (-1);
- st->l2.l2l1 = hscx_l2l1;
- break;
- case L1_MODE_MODEM:
- bcs->mode = L1_MODE_MODEM;
- if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) {
- bcs->hw.hscx.rcvbuf = bcs->cs->hw.elsa.rcvbuf;
- skb_queue_head_init(&bcs->rqueue);
- skb_queue_head_init(&bcs->squeue);
- }
- bcs->tx_skb = NULL;
- test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
- bcs->event = 0;
- bcs->hw.hscx.rcvidx = 0;
- bcs->tx_cnt = 0;
- bcs->cs->hw.elsa.bcs = bcs;
- st->l2.l2l1 = modem_l2l1;
- break;
- }
- st->l1.bcs = bcs;
- setstack_manager(st);
- bcs->st = st;
- setstack_l1_B(st);
- return (0);
-}
-
-static void
-init_modem(struct IsdnCardState *cs) {
-
- cs->bcs[0].BC_SetStack = setstack_elsa;
- cs->bcs[1].BC_SetStack = setstack_elsa;
- cs->bcs[0].BC_Close = close_elsastate;
- cs->bcs[1].BC_Close = close_elsastate;
- if (!(cs->hw.elsa.rcvbuf = kmalloc(MAX_MODEM_BUF,
- GFP_ATOMIC))) {
- printk(KERN_WARNING
- "Elsa: No modem mem hw.elsa.rcvbuf\n");
- return;
- }
- if (!(cs->hw.elsa.transbuf = kmalloc(MAX_MODEM_BUF,
- GFP_ATOMIC))) {
- printk(KERN_WARNING
- "Elsa: No modem mem hw.elsa.transbuf\n");
- kfree(cs->hw.elsa.rcvbuf);
- cs->hw.elsa.rcvbuf = NULL;
- return;
- }
- if (mstartup(cs)) {
- printk(KERN_WARNING "Elsa: problem startup modem\n");
- }
- modem_set_init(cs);
-}
-
-static void
-release_modem(struct IsdnCardState *cs) {
-
- cs->hw.elsa.MFlag = 0;
- if (cs->hw.elsa.transbuf) {
- if (cs->hw.elsa.rcvbuf) {
- mshutdown(cs);
- kfree(cs->hw.elsa.rcvbuf);
- cs->hw.elsa.rcvbuf = NULL;
- }
- kfree(cs->hw.elsa.transbuf);
- cs->hw.elsa.transbuf = NULL;
- }
-}
generated by cgit (git 2.34.1) at 2024-05-07 00:37:34 +0000