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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [isdn/] [hisax/] [hscx_irq.c] - Blame information for rev 1777

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/* $Id: hscx_irq.c,v 1.1 2005-12-20 10:17:01 jcastillo Exp $
 
 * hscx_irq.c     low level b-channel stuff for Siemens HSCX
 *
 * Author     Karsten Keil (keil@isdn4linux.de)
 *
 * This is an include file for fast inline IRQ stuff
 *
 * $Log: not supported by cvs2svn $
 * Revision 1.1.1.1  2001/09/10 07:44:18  simons
 * Initial import
 *
 * Revision 1.1.1.1  2001/07/02 17:58:32  simons
 * Initial revision
 *
 * Revision 1.5.2.5  1998/11/03 00:06:39  keil
 * certification related changes
 * fixed logging for smaller stack use
 *
 * Revision 1.5.2.4  1998/09/27 13:06:16  keil
 * Apply most changes from 2.1.X (HiSax 3.1)
 *
 * Revision 1.5.2.3  1998/06/24 14:43:56  keil
 * Fix recovery of TX IRQ loss
 *
 * Revision 1.5.2.2  1998/05/27 18:05:36  keil
 * HiSax 3.0
 *
 * Revision 1.5.2.1  1997/10/17 22:10:46  keil
 * new files on 2.0
 *
 * Revision 1.4  1997/08/15 17:48:02  keil
 * cosmetic
 *
 * Revision 1.3  1997/07/27 21:38:36  keil
 * new B-channel interface
 *
 * Revision 1.2  1997/06/26 11:16:19  keil
 * first version
 *
 *
 */
 
 
static inline void
waitforCEC(struct IsdnCardState *cs, int hscx)
{
        int to = 50;
 
        while ((READHSCX(cs, hscx, HSCX_STAR) & 0x04) && to) {
                udelay(1);
                to--;
        }
        if (!to)
                printk(KERN_WARNING "HiSax: waitforCEC timeout\n");
}
 
 
static inline void
waitforXFW(struct IsdnCardState *cs, int hscx)
{
        int to = 50;
 
        while ((!(READHSCX(cs, hscx, HSCX_STAR) & 0x44) == 0x40) && to) {
                udelay(1);
                to--;
        }
        if (!to)
                printk(KERN_WARNING "HiSax: waitforXFW timeout\n");
}
 
static inline void
WriteHSCXCMDR(struct IsdnCardState *cs, int hscx, u_char data)
{
        long flags;
 
        save_flags(flags);
        cli();
        waitforCEC(cs, hscx);
        WRITEHSCX(cs, hscx, HSCX_CMDR, data);
        restore_flags(flags);
}
 
 
 
static void
hscx_empty_fifo(struct BCState *bcs, int count)
{
        u_char *ptr;
        struct IsdnCardState *cs = bcs->cs;
        long flags;
 
        if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
                debugl1(cs, "hscx_empty_fifo");
 
        if (bcs->hw.hscx.rcvidx + count > HSCX_BUFMAX) {
                if (cs->debug & L1_DEB_WARN)
                        debugl1(cs, "hscx_empty_fifo: incoming packet too large");
                WriteHSCXCMDR(cs, bcs->hw.hscx.hscx, 0x80);
                bcs->hw.hscx.rcvidx = 0;
                return;
        }
        ptr = bcs->hw.hscx.rcvbuf + bcs->hw.hscx.rcvidx;
        bcs->hw.hscx.rcvidx += count;
        save_flags(flags);
        cli();
        READHSCXFIFO(cs, bcs->hw.hscx.hscx, ptr, count);
        WriteHSCXCMDR(cs, bcs->hw.hscx.hscx, 0x80);
        restore_flags(flags);
        if (cs->debug & L1_DEB_HSCX_FIFO) {
                char *t = bcs->blog;
 
                t += sprintf(t, "hscx_empty_fifo %c cnt %d",
                             bcs->hw.hscx.hscx ? 'B' : 'A', count);
                QuickHex(t, ptr, count);
                debugl1(cs, bcs->blog);
        }
}
 
static void
hscx_fill_fifo(struct BCState *bcs)
{
        struct IsdnCardState *cs = bcs->cs;
        int more, count;
        int fifo_size = test_bit(HW_IPAC, &cs->HW_Flags)? 64: 32;
        u_char *ptr;
        long flags;
 
 
        if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
                debugl1(cs, "hscx_fill_fifo");
 
        if (!bcs->tx_skb)
                return;
        if (bcs->tx_skb->len <= 0)
                return;
 
        more = (bcs->mode == L1_MODE_TRANS) ? 1 : 0;
        if (bcs->tx_skb->len > fifo_size) {
                more = !0;
                count = fifo_size;
        } else
                count = bcs->tx_skb->len;
 
        waitforXFW(cs, bcs->hw.hscx.hscx);
        save_flags(flags);
        cli();
        ptr = bcs->tx_skb->data;
        skb_pull(bcs->tx_skb, count);
        bcs->tx_cnt -= count;
        bcs->hw.hscx.count += count;
        WRITEHSCXFIFO(cs, bcs->hw.hscx.hscx, ptr, count);
        WriteHSCXCMDR(cs, bcs->hw.hscx.hscx, more ? 0x8 : 0xa);
        restore_flags(flags);
        if (cs->debug & L1_DEB_HSCX_FIFO) {
                char *t = bcs->blog;
 
                t += sprintf(t, "hscx_fill_fifo %c cnt %d",
                             bcs->hw.hscx.hscx ? 'B' : 'A', count);
                QuickHex(t, ptr, count);
                debugl1(cs, bcs->blog);
        }
}
 
static inline void
hscx_interrupt(struct IsdnCardState *cs, u_char val, u_char hscx)
{
        u_char r;
        struct BCState *bcs = cs->bcs + hscx;
        struct sk_buff *skb;
        int fifo_size = test_bit(HW_IPAC, &cs->HW_Flags)? 64: 32;
        int count;
 
        if (!test_bit(BC_FLG_INIT, &bcs->Flag))
                return;
 
        if (val & 0x80) {       /* RME */
                r = READHSCX(cs, hscx, HSCX_RSTA);
                if ((r & 0xf0) != 0xa0) {
                        if (!(r & 0x80))
                                if (cs->debug & L1_DEB_WARN)
                                        debugl1(cs, "HSCX invalid frame");
                        if ((r & 0x40) && bcs->mode)
                                if (cs->debug & L1_DEB_WARN)
                                        debugl1(cs, "HSCX RDO mode=%d",
                                                bcs->mode);
                        if (!(r & 0x20))
                                if (cs->debug & L1_DEB_WARN)
                                        debugl1(cs, "HSCX CRC error");
                        WriteHSCXCMDR(cs, hscx, 0x80);
                } else {
                        count = READHSCX(cs, hscx, HSCX_RBCL) & (
                                test_bit(HW_IPAC, &cs->HW_Flags)? 0x3f: 0x1f);
                        if (count == 0)
                                count = fifo_size;
                        hscx_empty_fifo(bcs, count);
                        if ((count = bcs->hw.hscx.rcvidx - 1) > 0) {
                                if (cs->debug & L1_DEB_HSCX_FIFO)
                                        debugl1(cs, "HX Frame %d", count);
                                if (!(skb = dev_alloc_skb(count)))
                                        printk(KERN_WARNING "HSCX: receive out of memory\n");
                                else {
                                        SET_SKB_FREE(skb);
                                        memcpy(skb_put(skb, count), bcs->hw.hscx.rcvbuf, count);
                                        skb_queue_tail(&bcs->rqueue, skb);
                                }
                        }
                }
                bcs->hw.hscx.rcvidx = 0;
                hscx_sched_event(bcs, B_RCVBUFREADY);
        }
        if (val & 0x40) {       /* RPF */
                hscx_empty_fifo(bcs, fifo_size);
                if (bcs->mode == L1_MODE_TRANS) {
                        /* receive audio data */
                        if (!(skb = dev_alloc_skb(fifo_size)))
                                printk(KERN_WARNING "HiSax: receive out of memory\n");
                        else {
                                SET_SKB_FREE(skb);
                                memcpy(skb_put(skb, fifo_size), bcs->hw.hscx.rcvbuf, fifo_size);
                                skb_queue_tail(&bcs->rqueue, skb);
                        }
                        bcs->hw.hscx.rcvidx = 0;
                        hscx_sched_event(bcs, B_RCVBUFREADY);
                }
        }
        if (val & 0x10) {       /* XPR */
                if (bcs->tx_skb) {
                        if (bcs->tx_skb->len) {
                                hscx_fill_fifo(bcs);
                                return;
                        } else {
                                if (bcs->st->lli.l1writewakeup &&
                                        (PACKET_NOACK != bcs->tx_skb->pkt_type))
                                        bcs->st->lli.l1writewakeup(bcs->st, bcs->hw.hscx.count);
                                dev_kfree_skb(bcs->tx_skb, FREE_WRITE);
                                bcs->hw.hscx.count = 0;
                                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);
                        hscx_fill_fifo(bcs);
                } else {
                        test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
                        hscx_sched_event(bcs, B_XMTBUFREADY);
                }
        }
}
 
static inline void
hscx_int_main(struct IsdnCardState *cs, u_char val)
{
 
        u_char exval;
        struct BCState *bcs;
 
        if (val & 0x01) {
                bcs = cs->bcs + 1;
                exval = READHSCX(cs, 1, HSCX_EXIR);
                if (exval & 0x40) {
                        if (bcs->mode == 1)
                                hscx_fill_fifo(bcs);
                        else {
                                /* Here we lost an TX interrupt, so
                                   * restart transmitting the whole frame.
                                 */
                                if (bcs->tx_skb) {
                                        skb_push(bcs->tx_skb, bcs->hw.hscx.count);
                                        bcs->tx_cnt += bcs->hw.hscx.count;
                                        bcs->hw.hscx.count = 0;
                                }
                                WriteHSCXCMDR(cs, bcs->hw.hscx.hscx, 0x01);
                                if (cs->debug & L1_DEB_WARN)
                                        debugl1(cs, "HSCX B EXIR %x Lost TX", exval);
                        }
                } else if (cs->debug & L1_DEB_HSCX)
                        debugl1(cs, "HSCX B EXIR %x", exval);
        }
        if (val & 0xf8) {
                if (cs->debug & L1_DEB_HSCX)
                        debugl1(cs, "HSCX B interrupt %x", val);
                hscx_interrupt(cs, val, 1);
        }
        if (val & 0x02) {
                bcs = cs->bcs;
                exval = READHSCX(cs, 0, HSCX_EXIR);
                if (exval & 0x40) {
                        if (bcs->mode == L1_MODE_TRANS)
                                hscx_fill_fifo(bcs);
                        else {
                                /* Here we lost an TX interrupt, so
                                   * restart transmitting the whole frame.
                                 */
                                if (bcs->tx_skb) {
                                        skb_push(bcs->tx_skb, bcs->hw.hscx.count);
                                        bcs->tx_cnt += bcs->hw.hscx.count;
                                        bcs->hw.hscx.count = 0;
                                }
                                WriteHSCXCMDR(cs, bcs->hw.hscx.hscx, 0x01);
                                if (cs->debug & L1_DEB_WARN)
                                        debugl1(cs, "HSCX A EXIR %x Lost TX", exval);
                        }
                } else if (cs->debug & L1_DEB_HSCX)
                        debugl1(cs, "HSCX A EXIR %x", exval);
        }
        if (val & 0x04) {
                exval = READHSCX(cs, 0, HSCX_ISTA);
                if (cs->debug & L1_DEB_HSCX)
                        debugl1(cs, "HSCX A interrupt %x", exval);
                hscx_interrupt(cs, exval, 0);
        }
}

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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [isdn/] [hisax/] [hscx_irq.c] - Blame information for rev 1777

Line No.	Rev	Author	Line
1	1626	jcastillo	`/* $Id: hscx_irq.c,v 1.1 2005-12-20 10:17:01 jcastillo Exp $`
2
3			`* hscx_irq.c low level b-channel stuff for Siemens HSCX`
4			`*`
5			`* Author Karsten Keil (keil@isdn4linux.de)`
6			`*`
7			`* This is an include file for fast inline IRQ stuff`
8			`*`
9			`* $Log: not supported by cvs2svn $`
10			`* Revision 1.1.1.1 2001/09/10 07:44:18 simons`
11			`* Initial import`
12			`*`
13			`* Revision 1.1.1.1 2001/07/02 17:58:32 simons`
14			`* Initial revision`
15			`*`
16			`* Revision 1.5.2.5 1998/11/03 00:06:39 keil`
17			`* certification related changes`
18			`* fixed logging for smaller stack use`
19			`*`
20			`* Revision 1.5.2.4 1998/09/27 13:06:16 keil`
21			`* Apply most changes from 2.1.X (HiSax 3.1)`
22			`*`
23			`* Revision 1.5.2.3 1998/06/24 14:43:56 keil`
24			`* Fix recovery of TX IRQ loss`
25			`*`
26			`* Revision 1.5.2.2 1998/05/27 18:05:36 keil`
27			`* HiSax 3.0`
28			`*`
29			`* Revision 1.5.2.1 1997/10/17 22:10:46 keil`
30			`* new files on 2.0`
31			`*`
32			`* Revision 1.4 1997/08/15 17:48:02 keil`
33			`* cosmetic`
34			`*`
35			`* Revision 1.3 1997/07/27 21:38:36 keil`
36			`* new B-channel interface`
37			`*`
38			`* Revision 1.2 1997/06/26 11:16:19 keil`
39			`* first version`
40			`*`
41			`*`
42			`*/`
43
44
45			`static inline void`
46			`waitforCEC(struct IsdnCardState *cs, int hscx)`
47			`{`
48			`int to = 50;`
49
50			`while ((READHSCX(cs, hscx, HSCX_STAR) & 0x04) && to) {`
51			`udelay(1);`
52			`to--;`
53			`}`
54			`if (!to)`
55			`printk(KERN_WARNING "HiSax: waitforCEC timeout\n");`
56			`}`
57
58
59			`static inline void`
60			`waitforXFW(struct IsdnCardState *cs, int hscx)`
61			`{`
62			`int to = 50;`
63
64			`while ((!(READHSCX(cs, hscx, HSCX_STAR) & 0x44) == 0x40) && to) {`
65			`udelay(1);`
66			`to--;`
67			`}`
68			`if (!to)`
69			`printk(KERN_WARNING "HiSax: waitforXFW timeout\n");`
70			`}`
71
72			`static inline void`
73			`WriteHSCXCMDR(struct IsdnCardState *cs, int hscx, u_char data)`
74			`{`
75			`long flags;`
76
77			`save_flags(flags);`
78			`cli();`
79			`waitforCEC(cs, hscx);`
80			`WRITEHSCX(cs, hscx, HSCX_CMDR, data);`
81			`restore_flags(flags);`
82			`}`
83
84
85
86			`static void`
87			`hscx_empty_fifo(struct BCState *bcs, int count)`
88			`{`
89			`u_char *ptr;`
90			`struct IsdnCardState *cs = bcs->cs;`
91			`long flags;`
92
93			`if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))`
94			`debugl1(cs, "hscx_empty_fifo");`
95
96			`if (bcs->hw.hscx.rcvidx + count > HSCX_BUFMAX) {`
97			`if (cs->debug & L1_DEB_WARN)`
98			`debugl1(cs, "hscx_empty_fifo: incoming packet too large");`
99			`WriteHSCXCMDR(cs, bcs->hw.hscx.hscx, 0x80);`
100			`bcs->hw.hscx.rcvidx = 0;`
101			`return;`
102			`}`
103			`ptr = bcs->hw.hscx.rcvbuf + bcs->hw.hscx.rcvidx;`
104			`bcs->hw.hscx.rcvidx += count;`
105			`save_flags(flags);`
106			`cli();`
107			`READHSCXFIFO(cs, bcs->hw.hscx.hscx, ptr, count);`
108			`WriteHSCXCMDR(cs, bcs->hw.hscx.hscx, 0x80);`
109			`restore_flags(flags);`
110			`if (cs->debug & L1_DEB_HSCX_FIFO) {`
111			`char *t = bcs->blog;`
112
113			`t += sprintf(t, "hscx_empty_fifo %c cnt %d",`
114			`bcs->hw.hscx.hscx ? 'B' : 'A', count);`
115			`QuickHex(t, ptr, count);`
116			`debugl1(cs, bcs->blog);`
117			`}`
118			`}`
119
120			`static void`
121			`hscx_fill_fifo(struct BCState *bcs)`
122			`{`
123			`struct IsdnCardState *cs = bcs->cs;`
124			`int more, count;`
125			`int fifo_size = test_bit(HW_IPAC, &cs->HW_Flags)? 64: 32;`
126			`u_char *ptr;`
127			`long flags;`
128
129
130			`if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))`
131			`debugl1(cs, "hscx_fill_fifo");`
132
133			`if (!bcs->tx_skb)`
134			`return;`
135			`if (bcs->tx_skb->len <= 0)`
136			`return;`
137
138			`more = (bcs->mode == L1_MODE_TRANS) ? 1 : 0;`
139			`if (bcs->tx_skb->len > fifo_size) {`
140			`more = !0;`
141			`count = fifo_size;`
142			`} else`
143			`count = bcs->tx_skb->len;`
144
145			`waitforXFW(cs, bcs->hw.hscx.hscx);`
146			`save_flags(flags);`
147			`cli();`
148			`ptr = bcs->tx_skb->data;`
149			`skb_pull(bcs->tx_skb, count);`
150			`bcs->tx_cnt -= count;`
151			`bcs->hw.hscx.count += count;`
152			`WRITEHSCXFIFO(cs, bcs->hw.hscx.hscx, ptr, count);`
153			`WriteHSCXCMDR(cs, bcs->hw.hscx.hscx, more ? 0x8 : 0xa);`
154			`restore_flags(flags);`
155			`if (cs->debug & L1_DEB_HSCX_FIFO) {`
156			`char *t = bcs->blog;`
157
158			`t += sprintf(t, "hscx_fill_fifo %c cnt %d",`
159			`bcs->hw.hscx.hscx ? 'B' : 'A', count);`
160			`QuickHex(t, ptr, count);`
161			`debugl1(cs, bcs->blog);`
162			`}`
163			`}`
164
165			`static inline void`
166			`hscx_interrupt(struct IsdnCardState *cs, u_char val, u_char hscx)`
167			`{`
168			`u_char r;`
169			`struct BCState *bcs = cs->bcs + hscx;`
170			`struct sk_buff *skb;`
171			`int fifo_size = test_bit(HW_IPAC, &cs->HW_Flags)? 64: 32;`
172			`int count;`
173
174			`if (!test_bit(BC_FLG_INIT, &bcs->Flag))`
175			`return;`
176
177			`if (val & 0x80) { /* RME */`
178			`r = READHSCX(cs, hscx, HSCX_RSTA);`
179			`if ((r & 0xf0) != 0xa0) {`
180			`if (!(r & 0x80))`
181			`if (cs->debug & L1_DEB_WARN)`
182			`debugl1(cs, "HSCX invalid frame");`
183			`if ((r & 0x40) && bcs->mode)`
184			`if (cs->debug & L1_DEB_WARN)`
185			`debugl1(cs, "HSCX RDO mode=%d",`
186			`bcs->mode);`
187			`if (!(r & 0x20))`
188			`if (cs->debug & L1_DEB_WARN)`
189			`debugl1(cs, "HSCX CRC error");`
190			`WriteHSCXCMDR(cs, hscx, 0x80);`
191			`} else {`
192			`count = READHSCX(cs, hscx, HSCX_RBCL) & (`
193			`test_bit(HW_IPAC, &cs->HW_Flags)? 0x3f: 0x1f);`
194			`if (count == 0)`
195			`count = fifo_size;`
196			`hscx_empty_fifo(bcs, count);`
197			`if ((count = bcs->hw.hscx.rcvidx - 1) > 0) {`
198			`if (cs->debug & L1_DEB_HSCX_FIFO)`
199			`debugl1(cs, "HX Frame %d", count);`
200			`if (!(skb = dev_alloc_skb(count)))`
201			`printk(KERN_WARNING "HSCX: receive out of memory\n");`
202			`else {`
203			`SET_SKB_FREE(skb);`
204			`memcpy(skb_put(skb, count), bcs->hw.hscx.rcvbuf, count);`
205			`skb_queue_tail(&bcs->rqueue, skb);`
206			`}`
207			`}`
208			`}`
209			`bcs->hw.hscx.rcvidx = 0;`
210			`hscx_sched_event(bcs, B_RCVBUFREADY);`
211			`}`
212			`if (val & 0x40) { /* RPF */`
213			`hscx_empty_fifo(bcs, fifo_size);`
214			`if (bcs->mode == L1_MODE_TRANS) {`
215			`/* receive audio data */`
216			`if (!(skb = dev_alloc_skb(fifo_size)))`
217			`printk(KERN_WARNING "HiSax: receive out of memory\n");`
218			`else {`
219			`SET_SKB_FREE(skb);`
220			`memcpy(skb_put(skb, fifo_size), bcs->hw.hscx.rcvbuf, fifo_size);`
221			`skb_queue_tail(&bcs->rqueue, skb);`
222			`}`
223			`bcs->hw.hscx.rcvidx = 0;`
224			`hscx_sched_event(bcs, B_RCVBUFREADY);`
225			`}`
226			`}`
227			`if (val & 0x10) { /* XPR */`
228			`if (bcs->tx_skb) {`
229			`if (bcs->tx_skb->len) {`
230			`hscx_fill_fifo(bcs);`
231			`return;`
232			`} else {`
233			`if (bcs->st->lli.l1writewakeup &&`
234			`(PACKET_NOACK != bcs->tx_skb->pkt_type))`
235			`bcs->st->lli.l1writewakeup(bcs->st, bcs->hw.hscx.count);`
236			`dev_kfree_skb(bcs->tx_skb, FREE_WRITE);`
237			`bcs->hw.hscx.count = 0;`
238			`bcs->tx_skb = NULL;`
239			`}`
240			`}`
241			`if ((bcs->tx_skb = skb_dequeue(&bcs->squeue))) {`
242			`bcs->hw.hscx.count = 0;`
243			`test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);`
244			`hscx_fill_fifo(bcs);`
245			`} else {`
246			`test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);`
247			`hscx_sched_event(bcs, B_XMTBUFREADY);`
248			`}`
249			`}`
250			`}`
251
252			`static inline void`
253			`hscx_int_main(struct IsdnCardState *cs, u_char val)`
254			`{`
255
256			`u_char exval;`
257			`struct BCState *bcs;`
258
259			`if (val & 0x01) {`
260			`bcs = cs->bcs + 1;`
261			`exval = READHSCX(cs, 1, HSCX_EXIR);`
262			`if (exval & 0x40) {`
263			`if (bcs->mode == 1)`
264			`hscx_fill_fifo(bcs);`
265			`else {`
266			`/* Here we lost an TX interrupt, so`
267			`* restart transmitting the whole frame.`
268			`*/`
269			`if (bcs->tx_skb) {`
270			`skb_push(bcs->tx_skb, bcs->hw.hscx.count);`
271			`bcs->tx_cnt += bcs->hw.hscx.count;`
272			`bcs->hw.hscx.count = 0;`
273			`}`
274			`WriteHSCXCMDR(cs, bcs->hw.hscx.hscx, 0x01);`
275			`if (cs->debug & L1_DEB_WARN)`
276			`debugl1(cs, "HSCX B EXIR %x Lost TX", exval);`
277			`}`
278			`} else if (cs->debug & L1_DEB_HSCX)`
279			`debugl1(cs, "HSCX B EXIR %x", exval);`
280			`}`
281			`if (val & 0xf8) {`
282			`if (cs->debug & L1_DEB_HSCX)`
283			`debugl1(cs, "HSCX B interrupt %x", val);`
284			`hscx_interrupt(cs, val, 1);`
285			`}`
286			`if (val & 0x02) {`
287			`bcs = cs->bcs;`
288			`exval = READHSCX(cs, 0, HSCX_EXIR);`
289			`if (exval & 0x40) {`
290			`if (bcs->mode == L1_MODE_TRANS)`
291			`hscx_fill_fifo(bcs);`
292			`else {`
293			`/* Here we lost an TX interrupt, so`
294			`* restart transmitting the whole frame.`
295			`*/`
296			`if (bcs->tx_skb) {`
297			`skb_push(bcs->tx_skb, bcs->hw.hscx.count);`
298			`bcs->tx_cnt += bcs->hw.hscx.count;`
299			`bcs->hw.hscx.count = 0;`
300			`}`
301			`WriteHSCXCMDR(cs, bcs->hw.hscx.hscx, 0x01);`
302			`if (cs->debug & L1_DEB_WARN)`
303			`debugl1(cs, "HSCX A EXIR %x Lost TX", exval);`
304			`}`
305			`} else if (cs->debug & L1_DEB_HSCX)`
306			`debugl1(cs, "HSCX A EXIR %x", exval);`
307			`}`
308			`if (val & 0x04) {`
309			`exval = READHSCX(cs, 0, HSCX_ISTA);`
310			`if (cs->debug & L1_DEB_HSCX)`
311			`debugl1(cs, "HSCX A interrupt %x", exval);`
312			`hscx_interrupt(cs, exval, 0);`
313			`}`
314			`}`