Release 4.7 drivers/isdn/hisax/hfc_2bs0.c

/* $Id: hfc_2bs0.c,v 1.20.2.6 2004/02/11 13:21:33 keil Exp $
 *
 * specific routines for CCD's HFC 2BS0
 *
 * Author       Karsten Keil
 * Copyright    by Karsten Keil      <keil@isdn4linux.de>
 *
 * This software may be used and distributed according to the terms
 * of the GNU General Public License, incorporated herein by reference.
 *
 */

#include <linux/init.h>
#include "hisax.h"
#include "hfc_2bs0.h"
#include "isac.h"
#include "isdnl1.h"
#include <linux/interrupt.h>
#include <linux/slab.h>


static inline int

WaitForBusy(struct IsdnCardState *cs)
{
	int to = 130;
	u_char val;

	while (!(cs->BC_Read_Reg(cs, HFC_STATUS, 0) & HFC_BUSY) && to) {
		val = cs->BC_Read_Reg(cs, HFC_DATA, HFC_CIP | HFC_F2 |
				      (cs->hw.hfc.cip & 3));
		udelay(1);
		to--;
	}
	if (!to) {
		printk(KERN_WARNING "HiSax: %s timeout\n", __func__);
		return (0);
	} else
		return (to);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
93
90.29%
1
33.33%
andrew morton
andrew morton
7
6.80%
1
33.33%
julia lawall
julia lawall
3
2.91%
1
33.33%
Total
103
100.00%
3
100.00%


static inline int

WaitNoBusy(struct IsdnCardState *cs)
{
	int to = 125;

	while ((cs->BC_Read_Reg(cs, HFC_STATUS, 0) & HFC_BUSY) && to) {
		udelay(1);
		to--;
	}
	if (!to) {
		printk(KERN_WARNING "HiSax: waitforBusy timeout\n");
		return (0);
	} else
		return (to);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
67
95.71%
1
50.00%
andrew morton
andrew morton
3
4.29%
1
50.00%
Total
70
100.00%
2
100.00%


static int

GetFreeFifoBytes(struct BCState *bcs)
{
	int s;

	if (bcs->hw.hfc.f1 == bcs->hw.hfc.f2)
		return (bcs->cs->hw.hfc.fifosize);
	s = bcs->hw.hfc.send[bcs->hw.hfc.f1] - bcs->hw.hfc.send[bcs->hw.hfc.f2];
	if (s <= 0)
		s += bcs->cs->hw.hfc.fifosize;
	s = bcs->cs->hw.hfc.fifosize - s;
	return (s);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
117
99.15%
1
50.00%
adrian bunk
adrian bunk
1
0.85%
1
50.00%
Total
118
100.00%
2
100.00%


static int

ReadZReg(struct BCState *bcs, u_char reg)
{
	int val;

	WaitNoBusy(bcs->cs);
	val = 256 * bcs->cs->BC_Read_Reg(bcs->cs, HFC_DATA, reg | HFC_CIP | HFC_Z_HIGH);
	WaitNoBusy(bcs->cs);
	val += bcs->cs->BC_Read_Reg(bcs->cs, HFC_DATA, reg | HFC_CIP | HFC_Z_LOW);
	return (val);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
68
85.00%
1
33.33%
andrew morton
andrew morton
11
13.75%
1
33.33%
adrian bunk
adrian bunk
1
1.25%
1
33.33%
Total
80
100.00%
3
100.00%


static void

hfc_clear_fifo(struct BCState *bcs)
{
	struct IsdnCardState *cs = bcs->cs;
	int idx, cnt;
	int rcnt, z1, z2;
	u_char cip, f1, f2;

	if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
		debugl1(cs, "hfc_clear_fifo");
	cip = HFC_CIP | HFC_F1 | HFC_REC | HFC_CHANNEL(bcs->channel);
	if ((cip & 0xc3) != (cs->hw.hfc.cip & 0xc3)) {
		cs->BC_Write_Reg(cs, HFC_STATUS, cip, cip);
		WaitForBusy(cs);
	}
	WaitNoBusy(cs);
	f1 = cs->BC_Read_Reg(cs, HFC_DATA, cip);
	cip = HFC_CIP | HFC_F2 | HFC_REC | HFC_CHANNEL(bcs->channel);
	WaitNoBusy(cs);
	f2 = cs->BC_Read_Reg(cs, HFC_DATA, cip);
	z1 = ReadZReg(bcs, HFC_Z1 | HFC_REC | HFC_CHANNEL(bcs->channel));
	z2 = ReadZReg(bcs, HFC_Z2 | HFC_REC | HFC_CHANNEL(bcs->channel));
	cnt = 32;
	while (((f1 != f2) || (z1 != z2)) && cnt--) {
		if (cs->debug & L1_DEB_HSCX)
			debugl1(cs, "hfc clear %d f1(%d) f2(%d)",
				bcs->channel, f1, f2);
		rcnt = z1 - z2;
		if (rcnt < 0)
			rcnt += cs->hw.hfc.fifosize;
		if (rcnt)
			rcnt++;
		if (cs->debug & L1_DEB_HSCX)
			debugl1(cs, "hfc clear %d z1(%x) z2(%x) cnt(%d)",
				bcs->channel, z1, z2, rcnt);
		cip = HFC_CIP | HFC_FIFO_OUT | HFC_REC | HFC_CHANNEL(bcs->channel);
		idx = 0;
		while ((idx < rcnt) && WaitNoBusy(cs)) {
			cs->BC_Read_Reg(cs, HFC_DATA_NODEB, cip);
			idx++;
		}
		if (f1 != f2) {
			WaitNoBusy(cs);
			cs->BC_Read_Reg(cs, HFC_DATA, HFC_CIP | HFC_F2_INC | HFC_REC |
					HFC_CHANNEL(bcs->channel));
			WaitForBusy(cs);
		}
		cip = HFC_CIP | HFC_F1 | HFC_REC | HFC_CHANNEL(bcs->channel);
		WaitNoBusy(cs);
		f1 = cs->BC_Read_Reg(cs, HFC_DATA, cip);
		cip = HFC_CIP | HFC_F2 | HFC_REC | HFC_CHANNEL(bcs->channel);
		WaitNoBusy(cs);
		f2 = cs->BC_Read_Reg(cs, HFC_DATA, cip);
		z1 = ReadZReg(bcs, HFC_Z1 | HFC_REC | HFC_CHANNEL(bcs->channel));
		z2 = ReadZReg(bcs, HFC_Z2 | HFC_REC | HFC_CHANNEL(bcs->channel));
	}
	return;
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
478
95.60%
2
66.67%
andrew morton
andrew morton
22
4.40%
1
33.33%
Total
500
100.00%
3
100.00%


static struct sk_buff
*

hfc_empty_fifo(struct BCState *bcs, int count)
{
	u_char *ptr;
	struct sk_buff *skb;
	struct IsdnCardState *cs = bcs->cs;
	int idx;
	int chksum;
	u_char stat, cip;

	if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
		debugl1(cs, "hfc_empty_fifo");
	idx = 0;
	if (count > HSCX_BUFMAX + 3) {
		if (cs->debug & L1_DEB_WARN)
			debugl1(cs, "hfc_empty_fifo: incoming packet too large");
		cip = HFC_CIP | HFC_FIFO_OUT | HFC_REC | HFC_CHANNEL(bcs->channel);
		while ((idx++ < count) && WaitNoBusy(cs))
			cs->BC_Read_Reg(cs, HFC_DATA_NODEB, cip);
		WaitNoBusy(cs);
		stat = cs->BC_Read_Reg(cs, HFC_DATA, HFC_CIP | HFC_F2_INC | HFC_REC |
				       HFC_CHANNEL(bcs->channel));
		WaitForBusy(cs);
		return (NULL);
	}
	if ((count < 4) && (bcs->mode != L1_MODE_TRANS)) {
		if (cs->debug & L1_DEB_WARN)
			debugl1(cs, "hfc_empty_fifo: incoming packet too small");
		cip = HFC_CIP | HFC_FIFO_OUT | HFC_REC | HFC_CHANNEL(bcs->channel);
		while ((idx++ < count) && WaitNoBusy(cs))
			cs->BC_Read_Reg(cs, HFC_DATA_NODEB, cip);
		WaitNoBusy(cs);
		stat = cs->BC_Read_Reg(cs, HFC_DATA, HFC_CIP | HFC_F2_INC | HFC_REC |
				       HFC_CHANNEL(bcs->channel));
		WaitForBusy(cs);
#ifdef ERROR_STATISTIC
		bcs->err_inv++;
#endif
		return (NULL);
	}
	if (bcs->mode == L1_MODE_TRANS)
		count -= 1;
	else
		count -= 3;
	if (!(skb = dev_alloc_skb(count)))
		printk(KERN_WARNING "HFC: receive out of memory\n");
	else {
		ptr = skb_put(skb, count);
		idx = 0;
		cip = HFC_CIP | HFC_FIFO_OUT | HFC_REC | HFC_CHANNEL(bcs->channel);
		while ((idx < count) && WaitNoBusy(cs)) {
			*ptr++ = cs->BC_Read_Reg(cs, HFC_DATA_NODEB, cip);
			idx++;
		}
		if (idx != count) {
			debugl1(cs, "RFIFO BUSY error");
			printk(KERN_WARNING "HFC FIFO channel %d BUSY Error\n", bcs->channel);
			dev_kfree_skb_any(skb);
			if (bcs->mode != L1_MODE_TRANS) {
				WaitNoBusy(cs);
				stat = cs->BC_Read_Reg(cs, HFC_DATA, HFC_CIP | HFC_F2_INC | HFC_REC |
						       HFC_CHANNEL(bcs->channel));
				WaitForBusy(cs);
			}
			return (NULL);
		}
		if (bcs->mode != L1_MODE_TRANS) {
			WaitNoBusy(cs);
			chksum = (cs->BC_Read_Reg(cs, HFC_DATA, cip) << 8);
			WaitNoBusy(cs);
			chksum += cs->BC_Read_Reg(cs, HFC_DATA, cip);
			WaitNoBusy(cs);
			stat = cs->BC_Read_Reg(cs, HFC_DATA, cip);
			if (cs->debug & L1_DEB_HSCX)
				debugl1(cs, "hfc_empty_fifo %d chksum %x stat %x",
					bcs->channel, chksum, stat);
			if (stat) {
				debugl1(cs, "FIFO CRC error");
				dev_kfree_skb_any(skb);
				skb = NULL;
#ifdef ERROR_STATISTIC
				bcs->err_crc++;
#endif
			}
			WaitNoBusy(cs);
			stat = cs->BC_Read_Reg(cs, HFC_DATA, HFC_CIP | HFC_F2_INC | HFC_REC |
					       HFC_CHANNEL(bcs->channel));
			WaitForBusy(cs);
		}
	}
	return (skb);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
609
95.01%
5
83.33%
andrew morton
andrew morton
32
4.99%
1
16.67%
Total
641
100.00%
6
100.00%


static void

hfc_fill_fifo(struct BCState *bcs)
{
	struct IsdnCardState *cs = bcs->cs;
	int idx, fcnt;
	int count;
	int z1, z2;
	u_char cip;

	if (!bcs->tx_skb)
		return;
	if (bcs->tx_skb->len <= 0)
		return;

	cip = HFC_CIP | HFC_F1 | HFC_SEND | HFC_CHANNEL(bcs->channel);
	if ((cip & 0xc3) != (cs->hw.hfc.cip & 0xc3)) {
		cs->BC_Write_Reg(cs, HFC_STATUS, cip, cip);
		WaitForBusy(cs);
	}
	WaitNoBusy(cs);
	if (bcs->mode != L1_MODE_TRANS) {
		bcs->hw.hfc.f1 = cs->BC_Read_Reg(cs, HFC_DATA, cip);
		cip = HFC_CIP | HFC_F2 | HFC_SEND | HFC_CHANNEL(bcs->channel);
		WaitNoBusy(cs);
		bcs->hw.hfc.f2 = cs->BC_Read_Reg(cs, HFC_DATA, cip);
		bcs->hw.hfc.send[bcs->hw.hfc.f1] = ReadZReg(bcs, HFC_Z1 | HFC_SEND | HFC_CHANNEL(bcs->channel));
		if (cs->debug & L1_DEB_HSCX)
			debugl1(cs, "hfc_fill_fifo %d f1(%d) f2(%d) z1(%x)",
				bcs->channel, bcs->hw.hfc.f1, bcs->hw.hfc.f2,
				bcs->hw.hfc.send[bcs->hw.hfc.f1]);
		fcnt = bcs->hw.hfc.f1 - bcs->hw.hfc.f2;
		if (fcnt < 0)
			fcnt += 32;
		if (fcnt > 30) {
			if (cs->debug & L1_DEB_HSCX)
				debugl1(cs, "hfc_fill_fifo more as 30 frames");
			return;
		}
		count = GetFreeFifoBytes(bcs);
	}
	else {
		WaitForBusy(cs);
		z1 = ReadZReg(bcs, HFC_Z1 | HFC_REC | HFC_CHANNEL(bcs->channel));
		z2 = ReadZReg(bcs, HFC_Z2 | HFC_REC | HFC_CHANNEL(bcs->channel));
		count = z1 - z2;
		if (count < 0)
			count += cs->hw.hfc.fifosize;
	} /* L1_MODE_TRANS */
	if (cs->debug & L1_DEB_HSCX)
		debugl1(cs, "hfc_fill_fifo %d count(%u/%d)",
			bcs->channel, bcs->tx_skb->len,
			count);
	if (count < bcs->tx_skb->len) {
		if (cs->debug & L1_DEB_HSCX)
			debugl1(cs, "hfc_fill_fifo no fifo mem");
		return;
	}
	cip = HFC_CIP | HFC_FIFO_IN | HFC_SEND | HFC_CHANNEL(bcs->channel);
	idx = 0;
	while ((idx < bcs->tx_skb->len) && WaitNoBusy(cs))
		cs->BC_Write_Reg(cs, HFC_DATA_NODEB, cip, bcs->tx_skb->data[idx++]);
	if (idx != bcs->tx_skb->len) {
		debugl1(cs, "FIFO Send BUSY error");
		printk(KERN_WARNING "HFC S FIFO channel %d BUSY Error\n", bcs->channel);
	} else {
		count =  bcs->tx_skb->len;
		bcs->tx_cnt -= count;
		if (PACKET_NOACK == bcs->tx_skb->pkt_type)
			count = -1;
		dev_kfree_skb_any(bcs->tx_skb);
		bcs->tx_skb = NULL;
		if (bcs->mode != L1_MODE_TRANS) {
			WaitForBusy(cs);
			WaitNoBusy(cs);
			cs->BC_Read_Reg(cs, HFC_DATA, HFC_CIP | HFC_F1_INC | HFC_SEND | HFC_CHANNEL(bcs->channel));
		}
		if (test_bit(FLG_LLI_L1WAKEUP, &bcs->st->lli.flag) &&
		    (count >= 0)) {
			u_long	flags;
			spin_lock_irqsave(&bcs->aclock, flags);
			bcs->ackcnt += count;
			spin_unlock_irqrestore(&bcs->aclock, flags);
			schedule_event(bcs, B_ACKPENDING);
		}
		test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
	}
	return;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
601
86.72%
3
37.50%
andrew morton
andrew morton
88
12.70%
2
25.00%
karsten keil
karsten keil
2
0.29%
1
12.50%
kai germaschewski
kai germaschewski
1
0.14%
1
12.50%
joe perches
joe perches
1
0.14%
1
12.50%
Total
693
100.00%
8
100.00%


void

main_irq_hfc(struct BCState *bcs)
{
	struct IsdnCardState *cs = bcs->cs;
	int z1, z2, rcnt;
	u_char f1, f2, cip;
	int receive, transmit, count = 5;
	struct sk_buff *skb;

Begin:
	count--;
	cip = HFC_CIP | HFC_F1 | HFC_REC | HFC_CHANNEL(bcs->channel);
	if ((cip & 0xc3) != (cs->hw.hfc.cip & 0xc3)) {
		cs->BC_Write_Reg(cs, HFC_STATUS, cip, cip);
		WaitForBusy(cs);
	}
	WaitNoBusy(cs);
	receive = 0;
	if (bcs->mode == L1_MODE_HDLC) {
		f1 = cs->BC_Read_Reg(cs, HFC_DATA, cip);
		cip = HFC_CIP | HFC_F2 | HFC_REC | HFC_CHANNEL(bcs->channel);
		WaitNoBusy(cs);
		f2 = cs->BC_Read_Reg(cs, HFC_DATA, cip);
		if (f1 != f2) {
			if (cs->debug & L1_DEB_HSCX)
				debugl1(cs, "hfc rec %d f1(%d) f2(%d)",
					bcs->channel, f1, f2);
			receive = 1;
		}
	}
	if (receive || (bcs->mode == L1_MODE_TRANS)) {
		WaitForBusy(cs);
		z1 = ReadZReg(bcs, HFC_Z1 | HFC_REC | HFC_CHANNEL(bcs->channel));
		z2 = ReadZReg(bcs, HFC_Z2 | HFC_REC | HFC_CHANNEL(bcs->channel));
		rcnt = z1 - z2;
		if (rcnt < 0)
			rcnt += cs->hw.hfc.fifosize;
		if ((bcs->mode == L1_MODE_HDLC) || (rcnt)) {
			rcnt++;
			if (cs->debug & L1_DEB_HSCX)
				debugl1(cs, "hfc rec %d z1(%x) z2(%x) cnt(%d)",
					bcs->channel, z1, z2, rcnt);
			/*              sti(); */
			if ((skb = hfc_empty_fifo(bcs, rcnt))) {
				skb_queue_tail(&bcs->rqueue, skb);
				schedule_event(bcs, B_RCVBUFREADY);
			}
		}
		receive = 1;
	}
	if (bcs->tx_skb) {
		transmit = 1;
		test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
		hfc_fill_fifo(bcs);
		if (test_bit(BC_FLG_BUSY, &bcs->Flag))
			transmit = 0;
	} else {
		if ((bcs->tx_skb = skb_dequeue(&bcs->squeue))) {
			transmit = 1;
			test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
			hfc_fill_fifo(bcs);
			if (test_bit(BC_FLG_BUSY, &bcs->Flag))
				transmit = 0;
		} else {
			transmit = 0;
			schedule_event(bcs, B_XMTBUFREADY);
		}
	}
	if ((receive || transmit) && count)
		goto Begin;
	return;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
479
97.36%
3
75.00%
andrew morton
andrew morton
13
2.64%
1
25.00%
Total
492
100.00%
4
100.00%


static void

mode_hfc(struct BCState *bcs, int mode, int bc)
{
	struct IsdnCardState *cs = bcs->cs;

	if (cs->debug & L1_DEB_HSCX)
		debugl1(cs, "HFC 2BS0 mode %d bchan %d/%d",
			mode, bc, bcs->channel);
	bcs->mode = mode;
	bcs->channel = bc;

	switch (mode) {
	case (L1_MODE_NULL):
		if (bc) {
			cs->hw.hfc.ctmt &= ~1;
			cs->hw.hfc.isac_spcr &= ~0x03;
		}
		else {
			cs->hw.hfc.ctmt &= ~2;
			cs->hw.hfc.isac_spcr &= ~0x0c;
		}
		break;
	case (L1_MODE_TRANS):
		cs->hw.hfc.ctmt &= ~(1 << bc); /* set HDLC mode */
		cs->BC_Write_Reg(cs, HFC_STATUS, cs->hw.hfc.ctmt, cs->hw.hfc.ctmt);
		hfc_clear_fifo(bcs); /* complete fifo clear */
		if (bc) {
			cs->hw.hfc.ctmt |= 1;
			cs->hw.hfc.isac_spcr &= ~0x03;
			cs->hw.hfc.isac_spcr |= 0x02;
		} else {
			cs->hw.hfc.ctmt |= 2;
			cs->hw.hfc.isac_spcr &= ~0x0c;
			cs->hw.hfc.isac_spcr |= 0x08;
		}
		break;
	case (L1_MODE_HDLC):
		if (bc) {
			cs->hw.hfc.ctmt &= ~1;
			cs->hw.hfc.isac_spcr &= ~0x03;
			cs->hw.hfc.isac_spcr |= 0x02;
		} else {
			cs->hw.hfc.ctmt &= ~2;
			cs->hw.hfc.isac_spcr &= ~0x0c;
			cs->hw.hfc.isac_spcr |= 0x08;
		}
		break;
	}
	cs->BC_Write_Reg(cs, HFC_STATUS, cs->hw.hfc.ctmt, cs->hw.hfc.ctmt);
	cs->writeisac(cs, ISAC_SPCR, cs->hw.hfc.isac_spcr);
	if (mode == L1_MODE_HDLC)
		hfc_clear_fifo(bcs);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
374
97.91%
3
60.00%
andrew morton
andrew morton
7
1.83%
1
20.00%
adrian bunk
adrian bunk
1
0.26%
1
20.00%
Total
382
100.00%
5
100.00%


static void

hfc_l2l1(struct PStack *st, int pr, void *arg)
{
	struct BCState	*bcs = st->l1.bcs;
	struct sk_buff	*skb = arg;
	u_long		flags;

	switch (pr) {
	case (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->cs->BC_Send_Data(bcs);
		}
		spin_unlock_irqrestore(&bcs->cs->lock, flags);
		break;
	case (PH_PULL | INDICATION):
		spin_lock_irqsave(&bcs->cs->lock, flags);
		if (bcs->tx_skb) {
			printk(KERN_WARNING "hfc_l2l1: this shouldn't happen\n");
		} else {
			test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
			bcs->tx_skb = skb;
			bcs->cs->BC_Send_Data(bcs);
		}
		spin_unlock_irqrestore(&bcs->cs->lock, flags);
		break;
	case (PH_PULL | REQUEST):
		if (!bcs->tx_skb) {
			test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
			st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
		} else
			test_and_set_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
		break;
	case (PH_ACTIVATE | REQUEST):
		spin_lock_irqsave(&bcs->cs->lock, flags);
		test_and_set_bit(BC_FLG_ACTIV, &bcs->Flag);
		mode_hfc(bcs, st->l1.mode, st->l1.bc);
		spin_unlock_irqrestore(&bcs->cs->lock, flags);
		l1_msg_b(st, pr, arg);
		break;
	case (PH_DEACTIVATE | REQUEST):
		l1_msg_b(st, pr, arg);
		break;
	case (PH_DEACTIVATE | CONFIRM):
		spin_lock_irqsave(&bcs->cs->lock, flags);
		test_and_clear_bit(BC_FLG_ACTIV, &bcs->Flag);
		test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
		mode_hfc(bcs, 0, st->l1.bc);
		spin_unlock_irqrestore(&bcs->cs->lock, flags);
		st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL);
		break;
	}
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
andrew morton
andrew morton
234
55.85%
1
25.00%
pre-git
pre-git
184
43.91%
2
50.00%
kai germaschewski
kai germaschewski
1
0.24%
1
25.00%
Total
419
100.00%
4
100.00%


static void

close_hfcstate(struct BCState *bcs)
{
	mode_hfc(bcs, 0, bcs->channel);
	if (test_bit(BC_FLG_INIT, &bcs->Flag)) {
		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);
		}
	}
	test_and_clear_bit(BC_FLG_INIT, &bcs->Flag);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
90
96.77%
3
60.00%
linus torvalds
linus torvalds
2
2.15%
1
20.00%
adrian bunk
adrian bunk
1
1.08%
1
20.00%
Total
93
100.00%
5
100.00%


static int

open_hfcstate(struct IsdnCardState *cs, struct BCState *bcs)
{
	if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) {
		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->tx_cnt = 0;
	return (0);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
80
100.00%
2
100.00%
Total
80
100.00%
2
100.00%


static int

setstack_hfc(struct PStack *st, struct BCState *bcs)
{
	bcs->channel = st->l1.bc;
	if (open_hfcstate(st->l1.hardware, bcs))
		return (-1);
	st->l1.bcs = bcs;
	st->l2.l2l1 = hfc_l2l1;
	setstack_manager(st);
	bcs->st = st;
	setstack_l1_B(st);
	return (0);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
80
97.56%
2
50.00%
adrian bunk
adrian bunk
1
1.22%
1
25.00%
andrew morton
andrew morton
1
1.22%
1
25.00%
Total
82
100.00%
4
100.00%


static void

init_send(struct BCState *bcs)
{
	int i;

	if (!(bcs->hw.hfc.send = kmalloc(32 * sizeof(unsigned int), GFP_ATOMIC))) {
		printk(KERN_WARNING
		       "HiSax: No memory for hfc.send\n");
		return;
	}
	for (i = 0; i < 32; i++)
		bcs->hw.hfc.send[i] = 0x1fff;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
74
98.67%
2
66.67%
adrian bunk
adrian bunk
1
1.33%
1
33.33%
Total
75
100.00%
3
100.00%


void

inithfc(struct IsdnCardState *cs)
{
	init_send(&cs->bcs[0]);
	init_send(&cs->bcs[1]);
	cs->BC_Send_Data = &hfc_fill_fifo;
	cs->bcs[0].BC_SetStack = setstack_hfc;
	cs->bcs[1].BC_SetStack = setstack_hfc;
	cs->bcs[0].BC_Close = close_hfcstate;
	cs->bcs[1].BC_Close = close_hfcstate;
	mode_hfc(cs->bcs, 0, 0);
	mode_hfc(cs->bcs + 1, 0, 0);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
61
57.01%
2
66.67%
andrew morton
andrew morton
46
42.99%
1
33.33%
Total
107
100.00%
3
100.00%


void

releasehfc(struct IsdnCardState *cs)
{
	kfree(cs->bcs[0].hw.hfc.send);
	cs->bcs[0].hw.hfc.send = NULL;
	kfree(cs->bcs[1].hw.hfc.send);
	cs->bcs[1].hw.hfc.send = NULL;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
72
100.00%
1
100.00%
Total
72
100.00%
1
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
3545
87.99%
6
35.29%
andrew morton
andrew morton
464
11.52%
2
11.76%
adrian bunk
adrian bunk
6
0.15%
1
5.88%
julia lawall
julia lawall
3
0.07%
1
5.88%
tejun heo
tejun heo
3
0.07%
1
5.88%
joe perches
joe perches
2
0.05%
2
11.76%
linus torvalds
linus torvalds
2
0.05%
1
5.88%
kai germaschewski
kai germaschewski
2
0.05%
2
11.76%
karsten keil
karsten keil
2
0.05%
1
5.88%
Total
4029
100.00%
17
100.00%
  
Directory: drivers/isdn/hisax

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.