1 /* $Id: hfcscard.c,v 1.10.2.4 2004/01/14 16:04:48 keil Exp $
2  *
3  * low level stuff for hfcs based cards (Teles3c, ACER P10)
4  *
5  * Author       Karsten Keil
6  * Copyright    by Karsten Keil      <keil@isdn4linux.de>
7  *
8  * This software may be used and distributed according to the terms
9  * of the GNU General Public License, incorporated herein by reference.
10  *
11  */
12 
13 #include <linux/init.h>
14 #include <linux/isapnp.h>
15 #include "hisax.h"
16 #include "hfc_2bds0.h"
17 #include "isdnl1.h"
18 
19 static const char *hfcs_revision = "$Revision: 1.10.2.4 $";
20 
21 static irqreturn_t
hfcs_interrupt(int intno,void * dev_id)22 hfcs_interrupt(int intno, void *dev_id)
23 {
24 	struct IsdnCardState *cs = dev_id;
25 	u_char val, stat;
26 	u_long flags;
27 
28 	spin_lock_irqsave(&cs->lock, flags);
29 	if ((HFCD_ANYINT | HFCD_BUSY_NBUSY) &
30 	    (stat = cs->BC_Read_Reg(cs, HFCD_DATA, HFCD_STAT))) {
31 		val = cs->BC_Read_Reg(cs, HFCD_DATA, HFCD_INT_S1);
32 		if (cs->debug & L1_DEB_ISAC)
33 			debugl1(cs, "HFCS: stat(%02x) s1(%02x)", stat, val);
34 		hfc2bds0_interrupt(cs, val);
35 	} else {
36 		if (cs->debug & L1_DEB_ISAC)
37 			debugl1(cs, "HFCS: irq_no_irq stat(%02x)", stat);
38 	}
39 	spin_unlock_irqrestore(&cs->lock, flags);
40 	return IRQ_HANDLED;
41 }
42 
43 static void
hfcs_Timer(struct timer_list * t)44 hfcs_Timer(struct timer_list *t)
45 {
46 	struct IsdnCardState *cs = from_timer(cs, t, hw.hfcD.timer);
47 	cs->hw.hfcD.timer.expires = jiffies + 75;
48 	/* WD RESET */
49 /*	WriteReg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt | 0x80);
50 	add_timer(&cs->hw.hfcD.timer);
51 */
52 }
53 
54 static void
release_io_hfcs(struct IsdnCardState * cs)55 release_io_hfcs(struct IsdnCardState *cs)
56 {
57 	release2bds0(cs);
58 	del_timer(&cs->hw.hfcD.timer);
59 	if (cs->hw.hfcD.addr)
60 		release_region(cs->hw.hfcD.addr, 2);
61 }
62 
63 static void
reset_hfcs(struct IsdnCardState * cs)64 reset_hfcs(struct IsdnCardState *cs)
65 {
66 	printk(KERN_INFO "HFCS: resetting card\n");
67 	cs->hw.hfcD.cirm = HFCD_RESET;
68 	if (cs->typ == ISDN_CTYPE_TELES3C)
69 		cs->hw.hfcD.cirm |= HFCD_MEM8K;
70 	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm);	/* Reset On */
71 	mdelay(10);
72 	cs->hw.hfcD.cirm = 0;
73 	if (cs->typ == ISDN_CTYPE_TELES3C)
74 		cs->hw.hfcD.cirm |= HFCD_MEM8K;
75 	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm);	/* Reset Off */
76 	mdelay(10);
77 	if (cs->typ == ISDN_CTYPE_TELES3C)
78 		cs->hw.hfcD.cirm |= HFCD_INTB;
79 	else if (cs->typ == ISDN_CTYPE_ACERP10)
80 		cs->hw.hfcD.cirm |= HFCD_INTA;
81 	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm);
82 	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CLKDEL, 0x0e);
83 	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_TEST, HFCD_AUTO_AWAKE); /* S/T Auto awake */
84 	cs->hw.hfcD.ctmt = HFCD_TIM25 | HFCD_AUTO_TIMER;
85 	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt);
86 	cs->hw.hfcD.int_m2 = HFCD_IRQ_ENABLE;
87 	cs->hw.hfcD.int_m1 = HFCD_INTS_B1TRANS | HFCD_INTS_B2TRANS |
88 		HFCD_INTS_DTRANS | HFCD_INTS_B1REC | HFCD_INTS_B2REC |
89 		HFCD_INTS_DREC | HFCD_INTS_L1STATE;
90 	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_INT_M1, cs->hw.hfcD.int_m1);
91 	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_INT_M2, cs->hw.hfcD.int_m2);
92 	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_STATES, HFCD_LOAD_STATE | 2); /* HFC ST 2 */
93 	udelay(10);
94 	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_STATES, 2); /* HFC ST 2 */
95 	cs->hw.hfcD.mst_m = HFCD_MASTER;
96 	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_MST_MODE, cs->hw.hfcD.mst_m); /* HFC Master */
97 	cs->hw.hfcD.sctrl = 0;
98 	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_SCTRL, cs->hw.hfcD.sctrl);
99 }
100 
101 static int
hfcs_card_msg(struct IsdnCardState * cs,int mt,void * arg)102 hfcs_card_msg(struct IsdnCardState *cs, int mt, void *arg)
103 {
104 	u_long flags;
105 	int delay;
106 
107 	if (cs->debug & L1_DEB_ISAC)
108 		debugl1(cs, "HFCS: card_msg %x", mt);
109 	switch (mt) {
110 	case CARD_RESET:
111 		spin_lock_irqsave(&cs->lock, flags);
112 		reset_hfcs(cs);
113 		spin_unlock_irqrestore(&cs->lock, flags);
114 		return (0);
115 	case CARD_RELEASE:
116 		release_io_hfcs(cs);
117 		return (0);
118 	case CARD_INIT:
119 		delay = (75 * HZ) / 100 + 1;
120 		mod_timer(&cs->hw.hfcD.timer, jiffies + delay);
121 		spin_lock_irqsave(&cs->lock, flags);
122 		reset_hfcs(cs);
123 		init2bds0(cs);
124 		spin_unlock_irqrestore(&cs->lock, flags);
125 		delay = (80 * HZ) / 1000 + 1;
126 		msleep(80);
127 		spin_lock_irqsave(&cs->lock, flags);
128 		cs->hw.hfcD.ctmt |= HFCD_TIM800;
129 		cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt);
130 		cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_MST_MODE, cs->hw.hfcD.mst_m);
131 		spin_unlock_irqrestore(&cs->lock, flags);
132 		return (0);
133 	case CARD_TEST:
134 		return (0);
135 	}
136 	return (0);
137 }
138 
139 #ifdef __ISAPNP__
140 static struct isapnp_device_id hfc_ids[] = {
141 	{ ISAPNP_VENDOR('A', 'N', 'X'), ISAPNP_FUNCTION(0x1114),
142 	  ISAPNP_VENDOR('A', 'N', 'X'), ISAPNP_FUNCTION(0x1114),
143 	  (unsigned long) "Acer P10" },
144 	{ ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0002),
145 	  ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0002),
146 	  (unsigned long) "Billion 2" },
147 	{ ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0001),
148 	  ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0001),
149 	  (unsigned long) "Billion 1" },
150 	{ ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x7410),
151 	  ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x7410),
152 	  (unsigned long) "IStar PnP" },
153 	{ ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2610),
154 	  ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2610),
155 	  (unsigned long) "Teles 16.3c" },
156 	{ ISAPNP_VENDOR('S', 'F', 'M'), ISAPNP_FUNCTION(0x0001),
157 	  ISAPNP_VENDOR('S', 'F', 'M'), ISAPNP_FUNCTION(0x0001),
158 	  (unsigned long) "Tornado Tipa C" },
159 	{ ISAPNP_VENDOR('K', 'Y', 'E'), ISAPNP_FUNCTION(0x0001),
160 	  ISAPNP_VENDOR('K', 'Y', 'E'), ISAPNP_FUNCTION(0x0001),
161 	  (unsigned long) "Genius Speed Surfer" },
162 	{ 0, }
163 };
164 
165 static struct isapnp_device_id *ipid = &hfc_ids[0];
166 static struct pnp_card *pnp_c = NULL;
167 #endif
168 
setup_hfcs(struct IsdnCard * card)169 int setup_hfcs(struct IsdnCard *card)
170 {
171 	struct IsdnCardState *cs = card->cs;
172 	char tmp[64];
173 
174 	strcpy(tmp, hfcs_revision);
175 	printk(KERN_INFO "HiSax: HFC-S driver Rev. %s\n", HiSax_getrev(tmp));
176 
177 #ifdef __ISAPNP__
178 	if (!card->para[1] && isapnp_present()) {
179 		struct pnp_dev *pnp_d;
180 		while (ipid->card_vendor) {
181 			if ((pnp_c = pnp_find_card(ipid->card_vendor,
182 						   ipid->card_device, pnp_c))) {
183 				pnp_d = NULL;
184 				if ((pnp_d = pnp_find_dev(pnp_c,
185 							  ipid->vendor, ipid->function, pnp_d))) {
186 					int err;
187 
188 					printk(KERN_INFO "HiSax: %s detected\n",
189 					       (char *)ipid->driver_data);
190 					pnp_disable_dev(pnp_d);
191 					err = pnp_activate_dev(pnp_d);
192 					if (err < 0) {
193 						printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
194 						       __func__, err);
195 						return (0);
196 					}
197 					card->para[1] = pnp_port_start(pnp_d, 0);
198 					card->para[0] = pnp_irq(pnp_d, 0);
199 					if (card->para[0] == -1 || !card->para[1]) {
200 						printk(KERN_ERR "HFC PnP:some resources are missing %ld/%lx\n",
201 						       card->para[0], card->para[1]);
202 						pnp_disable_dev(pnp_d);
203 						return (0);
204 					}
205 					break;
206 				} else {
207 					printk(KERN_ERR "HFC PnP: PnP error card found, no device\n");
208 				}
209 			}
210 			ipid++;
211 			pnp_c = NULL;
212 		}
213 		if (!ipid->card_vendor) {
214 			printk(KERN_INFO "HFC PnP: no ISAPnP card found\n");
215 			return (0);
216 		}
217 	}
218 #endif
219 	cs->hw.hfcD.addr = card->para[1] & 0xfffe;
220 	cs->irq = card->para[0];
221 	cs->hw.hfcD.cip = 0;
222 	cs->hw.hfcD.int_s1 = 0;
223 	cs->hw.hfcD.send = NULL;
224 	cs->bcs[0].hw.hfc.send = NULL;
225 	cs->bcs[1].hw.hfc.send = NULL;
226 	cs->hw.hfcD.dfifosize = 512;
227 	cs->dc.hfcd.ph_state = 0;
228 	cs->hw.hfcD.fifo = 255;
229 	if (cs->typ == ISDN_CTYPE_TELES3C) {
230 		cs->hw.hfcD.bfifosize = 1024 + 512;
231 	} else if (cs->typ == ISDN_CTYPE_ACERP10) {
232 		cs->hw.hfcD.bfifosize = 7 * 1024 + 512;
233 	} else
234 		return (0);
235 	if (!request_region(cs->hw.hfcD.addr, 2, "HFCS isdn")) {
236 		printk(KERN_WARNING
237 		       "HiSax: %s config port %x-%x already in use\n",
238 		       CardType[card->typ],
239 		       cs->hw.hfcD.addr,
240 		       cs->hw.hfcD.addr + 2);
241 		return (0);
242 	}
243 	printk(KERN_INFO
244 	       "HFCS: defined at 0x%x IRQ %d HZ %d\n",
245 	       cs->hw.hfcD.addr,
246 	       cs->irq, HZ);
247 	if (cs->typ == ISDN_CTYPE_TELES3C) {
248 		/* Teles 16.3c IO ADR is 0x200 | YY0U (YY Bit 15/14 address) */
249 		outb(0x00, cs->hw.hfcD.addr);
250 		outb(0x56, cs->hw.hfcD.addr | 1);
251 	} else if (cs->typ == ISDN_CTYPE_ACERP10) {
252 		/* Acer P10 IO ADR is 0x300 */
253 		outb(0x00, cs->hw.hfcD.addr);
254 		outb(0x57, cs->hw.hfcD.addr | 1);
255 	}
256 	set_cs_func(cs);
257 	timer_setup(&cs->hw.hfcD.timer, hfcs_Timer, 0);
258 	cs->cardmsg = &hfcs_card_msg;
259 	cs->irq_func = &hfcs_interrupt;
260 	return (1);
261 }
262