11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* $Id: hscx.c,v 1.24.2.4 2004/01/24 20:47:23 keil Exp $ 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * HSCX specific routines 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Author Karsten Keil 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright by Karsten Keil <keil@isdn4linux.de> 7475be4d85a274d0961593db41cf85689db1d583cJoe Perches * 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This software may be used and distributed according to the terms 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of the GNU General Public License, incorporated herein by reference. 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "hisax.h" 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "hscx.h" 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "isac.h" 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "isdnl1.h" 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 195a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *HSCXVer[] = 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{"A1", "?1", "A2", "?3", "A3", "V2.1", "?6", "?7", 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "?8", "?9", "?10", "?11", "?12", "?13", "?14", "???"}; 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsHscxVersion(struct IsdnCardState *cs, char *s) 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int verA, verB; 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds verA = cs->BC_Read_Reg(cs, 0, HSCX_VSTR) & 0xf; 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds verB = cs->BC_Read_Reg(cs, 1, HSCX_VSTR) & 0xf; 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s HSCX version A: %s B: %s\n", s, 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds HSCXVer[verA], HSCXVer[verB]); 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((verA == 0) | (verA == 0xf) | (verB == 0) | (verB == 0xf)) 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (1); 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodehscx(struct BCState *bcs, int mode, int bc) 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct IsdnCardState *cs = bcs->cs; 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int hscx = bcs->hw.hscx.hscx; 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cs->debug & L1_DEB_HSCX) 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds debugl1(cs, "hscx %c mode %d ichan %d", 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 'A' + hscx, mode, bc); 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bcs->mode = mode; 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bcs->channel = bc; 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_XAD1, 0xFF); 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_XAD2, 0xFF); 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_RAH2, 0xFF); 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_XBCH, 0x0); 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_RLCR, 0x0); 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_CCR1, 57475be4d85a274d0961593db41cf85689db1d583cJoe Perches test_bit(HW_IPAC, &cs->HW_Flags) ? 0x82 : 0x85); 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_CCR2, 0x30); 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_XCCR, 7); 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_RCCR, 7); 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Switch IOM 1 SSI */ 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (test_bit(HW_IOM1, &cs->HW_Flags) && (hscx == 0)) 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bc = 1 - bc; 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bc == 0) { 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_TSAX, 68475be4d85a274d0961593db41cf85689db1d583cJoe Perches test_bit(HW_IOM1, &cs->HW_Flags) ? 0x7 : bcs->hw.hscx.tsaxr0); 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_TSAR, 70475be4d85a274d0961593db41cf85689db1d583cJoe Perches test_bit(HW_IOM1, &cs->HW_Flags) ? 0x7 : bcs->hw.hscx.tsaxr0); 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_TSAX, bcs->hw.hscx.tsaxr1); 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_TSAR, bcs->hw.hscx.tsaxr1); 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (mode) { 76475be4d85a274d0961593db41cf85689db1d583cJoe Perches case (L1_MODE_NULL): 77475be4d85a274d0961593db41cf85689db1d583cJoe Perches cs->BC_Write_Reg(cs, hscx, HSCX_TSAX, 0x1f); 78475be4d85a274d0961593db41cf85689db1d583cJoe Perches cs->BC_Write_Reg(cs, hscx, HSCX_TSAR, 0x1f); 79475be4d85a274d0961593db41cf85689db1d583cJoe Perches cs->BC_Write_Reg(cs, hscx, HSCX_MODE, 0x84); 80475be4d85a274d0961593db41cf85689db1d583cJoe Perches break; 81475be4d85a274d0961593db41cf85689db1d583cJoe Perches case (L1_MODE_TRANS): 82475be4d85a274d0961593db41cf85689db1d583cJoe Perches cs->BC_Write_Reg(cs, hscx, HSCX_MODE, 0xe4); 83475be4d85a274d0961593db41cf85689db1d583cJoe Perches break; 84475be4d85a274d0961593db41cf85689db1d583cJoe Perches case (L1_MODE_HDLC): 85475be4d85a274d0961593db41cf85689db1d583cJoe Perches cs->BC_Write_Reg(cs, hscx, HSCX_CCR1, 86475be4d85a274d0961593db41cf85689db1d583cJoe Perches test_bit(HW_IPAC, &cs->HW_Flags) ? 0x8a : 0x8d); 87475be4d85a274d0961593db41cf85689db1d583cJoe Perches cs->BC_Write_Reg(cs, hscx, HSCX_MODE, 0x8c); 88475be4d85a274d0961593db41cf85689db1d583cJoe Perches break; 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (mode) 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_CMDR, 0x41); 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, hscx, HSCX_ISTA, 0x00); 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldshscx_l2l1(struct PStack *st, int pr, void *arg) 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct BCState *bcs = st->l1.bcs; 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u_long flags; 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skb = arg; 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (pr) { 103475be4d85a274d0961593db41cf85689db1d583cJoe Perches case (PH_DATA | REQUEST): 104475be4d85a274d0961593db41cf85689db1d583cJoe Perches spin_lock_irqsave(&bcs->cs->lock, flags); 105475be4d85a274d0961593db41cf85689db1d583cJoe Perches if (bcs->tx_skb) { 106475be4d85a274d0961593db41cf85689db1d583cJoe Perches skb_queue_tail(&bcs->squeue, skb); 107475be4d85a274d0961593db41cf85689db1d583cJoe Perches } else { 108475be4d85a274d0961593db41cf85689db1d583cJoe Perches bcs->tx_skb = skb; 109475be4d85a274d0961593db41cf85689db1d583cJoe Perches test_and_set_bit(BC_FLG_BUSY, &bcs->Flag); 110475be4d85a274d0961593db41cf85689db1d583cJoe Perches bcs->hw.hscx.count = 0; 111475be4d85a274d0961593db41cf85689db1d583cJoe Perches bcs->cs->BC_Send_Data(bcs); 112475be4d85a274d0961593db41cf85689db1d583cJoe Perches } 113475be4d85a274d0961593db41cf85689db1d583cJoe Perches spin_unlock_irqrestore(&bcs->cs->lock, flags); 114475be4d85a274d0961593db41cf85689db1d583cJoe Perches break; 115475be4d85a274d0961593db41cf85689db1d583cJoe Perches case (PH_PULL | INDICATION): 116475be4d85a274d0961593db41cf85689db1d583cJoe Perches spin_lock_irqsave(&bcs->cs->lock, flags); 117475be4d85a274d0961593db41cf85689db1d583cJoe Perches if (bcs->tx_skb) { 118475be4d85a274d0961593db41cf85689db1d583cJoe Perches printk(KERN_WARNING "hscx_l2l1: this shouldn't happen\n"); 119475be4d85a274d0961593db41cf85689db1d583cJoe Perches } else { 120475be4d85a274d0961593db41cf85689db1d583cJoe Perches test_and_set_bit(BC_FLG_BUSY, &bcs->Flag); 121475be4d85a274d0961593db41cf85689db1d583cJoe Perches bcs->tx_skb = skb; 122475be4d85a274d0961593db41cf85689db1d583cJoe Perches bcs->hw.hscx.count = 0; 123475be4d85a274d0961593db41cf85689db1d583cJoe Perches bcs->cs->BC_Send_Data(bcs); 124475be4d85a274d0961593db41cf85689db1d583cJoe Perches } 125475be4d85a274d0961593db41cf85689db1d583cJoe Perches spin_unlock_irqrestore(&bcs->cs->lock, flags); 126475be4d85a274d0961593db41cf85689db1d583cJoe Perches break; 127475be4d85a274d0961593db41cf85689db1d583cJoe Perches case (PH_PULL | REQUEST): 128475be4d85a274d0961593db41cf85689db1d583cJoe Perches if (!bcs->tx_skb) { 129475be4d85a274d0961593db41cf85689db1d583cJoe Perches test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags); 130475be4d85a274d0961593db41cf85689db1d583cJoe Perches st->l1.l1l2(st, PH_PULL | CONFIRM, NULL); 131475be4d85a274d0961593db41cf85689db1d583cJoe Perches } else 132475be4d85a274d0961593db41cf85689db1d583cJoe Perches test_and_set_bit(FLG_L1_PULL_REQ, &st->l1.Flags); 133475be4d85a274d0961593db41cf85689db1d583cJoe Perches break; 134475be4d85a274d0961593db41cf85689db1d583cJoe Perches case (PH_ACTIVATE | REQUEST): 135475be4d85a274d0961593db41cf85689db1d583cJoe Perches spin_lock_irqsave(&bcs->cs->lock, flags); 136475be4d85a274d0961593db41cf85689db1d583cJoe Perches test_and_set_bit(BC_FLG_ACTIV, &bcs->Flag); 137475be4d85a274d0961593db41cf85689db1d583cJoe Perches modehscx(bcs, st->l1.mode, st->l1.bc); 138475be4d85a274d0961593db41cf85689db1d583cJoe Perches spin_unlock_irqrestore(&bcs->cs->lock, flags); 139475be4d85a274d0961593db41cf85689db1d583cJoe Perches l1_msg_b(st, pr, arg); 140475be4d85a274d0961593db41cf85689db1d583cJoe Perches break; 141475be4d85a274d0961593db41cf85689db1d583cJoe Perches case (PH_DEACTIVATE | REQUEST): 142475be4d85a274d0961593db41cf85689db1d583cJoe Perches l1_msg_b(st, pr, arg); 143475be4d85a274d0961593db41cf85689db1d583cJoe Perches break; 144475be4d85a274d0961593db41cf85689db1d583cJoe Perches case (PH_DEACTIVATE | CONFIRM): 145475be4d85a274d0961593db41cf85689db1d583cJoe Perches spin_lock_irqsave(&bcs->cs->lock, flags); 146475be4d85a274d0961593db41cf85689db1d583cJoe Perches test_and_clear_bit(BC_FLG_ACTIV, &bcs->Flag); 147475be4d85a274d0961593db41cf85689db1d583cJoe Perches test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag); 148475be4d85a274d0961593db41cf85689db1d583cJoe Perches modehscx(bcs, 0, st->l1.bc); 149475be4d85a274d0961593db41cf85689db1d583cJoe Perches spin_unlock_irqrestore(&bcs->cs->lock, flags); 150475be4d85a274d0961593db41cf85689db1d583cJoe Perches st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL); 151475be4d85a274d0961593db41cf85689db1d583cJoe Perches break; 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 155672c3fd9069e5a138f9d4afc9aeb5aa34aacce32Adrian Bunkstatic void 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsclose_hscxstate(struct BCState *bcs) 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds modehscx(bcs, 0, bcs->channel); 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) { 1603c7208f253571ee5f157b98f0e315b5172afe092Jesper Juhl kfree(bcs->hw.hscx.rcvbuf); 1613c7208f253571ee5f157b98f0e315b5172afe092Jesper Juhl bcs->hw.hscx.rcvbuf = NULL; 1623c7208f253571ee5f157b98f0e315b5172afe092Jesper Juhl kfree(bcs->blog); 1633c7208f253571ee5f157b98f0e315b5172afe092Jesper Juhl bcs->blog = NULL; 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb_queue_purge(&bcs->rqueue); 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb_queue_purge(&bcs->squeue); 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bcs->tx_skb) { 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb_any(bcs->tx_skb); 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bcs->tx_skb = NULL; 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag); 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsopen_hscxstate(struct IsdnCardState *cs, struct BCState *bcs) 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) { 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(bcs->hw.hscx.rcvbuf = kmalloc(HSCX_BUFMAX, GFP_ATOMIC))) { 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_WARNING 180475be4d85a274d0961593db41cf85689db1d583cJoe Perches "HiSax: No memory for hscx.rcvbuf\n"); 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds test_and_clear_bit(BC_FLG_INIT, &bcs->Flag); 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (1); 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(bcs->blog = kmalloc(MAX_BLOG_SPACE, GFP_ATOMIC))) { 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_WARNING 186475be4d85a274d0961593db41cf85689db1d583cJoe Perches "HiSax: No memory for bcs->blog\n"); 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds test_and_clear_bit(BC_FLG_INIT, &bcs->Flag); 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(bcs->hw.hscx.rcvbuf); 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bcs->hw.hscx.rcvbuf = NULL; 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (2); 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb_queue_head_init(&bcs->rqueue); 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds skb_queue_head_init(&bcs->squeue); 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bcs->tx_skb = NULL; 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag); 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bcs->event = 0; 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bcs->hw.hscx.rcvidx = 0; 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bcs->tx_cnt = 0; 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 203672c3fd9069e5a138f9d4afc9aeb5aa34aacce32Adrian Bunkstatic int 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldssetstack_hscx(struct PStack *st, struct BCState *bcs) 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bcs->channel = st->l1.bc; 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (open_hscxstate(st->l1.hardware, bcs)) 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (-1); 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds st->l1.bcs = bcs; 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds st->l2.l2l1 = hscx_l2l1; 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setstack_manager(st); 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bcs->st = st; 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setstack_l1_B(st); 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (0); 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsclear_pending_hscx_ints(struct IsdnCardState *cs) 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val, eval; 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = cs->BC_Read_Reg(cs, 1, HSCX_ISTA); 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds debugl1(cs, "HSCX B ISTA %x", val); 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val & 0x01) { 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds eval = cs->BC_Read_Reg(cs, 1, HSCX_EXIR); 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds debugl1(cs, "HSCX B EXIR %x", eval); 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val & 0x02) { 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds eval = cs->BC_Read_Reg(cs, 0, HSCX_EXIR); 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds debugl1(cs, "HSCX A EXIR %x", eval); 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = cs->BC_Read_Reg(cs, 0, HSCX_ISTA); 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds debugl1(cs, "HSCX A ISTA %x", val); 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = cs->BC_Read_Reg(cs, 1, HSCX_STAR); 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds debugl1(cs, "HSCX B STAR %x", val); 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = cs->BC_Read_Reg(cs, 0, HSCX_STAR); 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds debugl1(cs, "HSCX A STAR %x", val); 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* disable all IRQ */ 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, 0, HSCX_MASK, 0xFF); 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, 1, HSCX_MASK, 0xFF); 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsinithscx(struct IsdnCardState *cs) 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->bcs[0].BC_SetStack = setstack_hscx; 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->bcs[1].BC_SetStack = setstack_hscx; 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->bcs[0].BC_Close = close_hscxstate; 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->bcs[1].BC_Close = close_hscxstate; 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->bcs[0].hw.hscx.hscx = 0; 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->bcs[1].hw.hscx.hscx = 1; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->bcs[0].hw.hscx.tsaxr0 = 0x2f; 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->bcs[0].hw.hscx.tsaxr1 = 3; 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->bcs[1].hw.hscx.tsaxr0 = 0x2f; 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->bcs[1].hw.hscx.tsaxr1 = 3; 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds modehscx(cs->bcs, 0, 0); 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds modehscx(cs->bcs + 1, 0, 0); 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsinithscxisac(struct IsdnCardState *cs, int part) 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (part & 1) { 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_pending_isac_ints(cs); 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_pending_hscx_ints(cs); 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds initisac(cs); 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds inithscx(cs); 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (part & 2) { 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Reenable all IRQ */ 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->writeisac(cs, ISAC_MASK, 0); 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, 0, HSCX_MASK, 0); 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->BC_Write_Reg(cs, 1, HSCX_MASK, 0); 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* RESET Receiver and Transmitter */ 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cs->writeisac(cs, ISAC_CMDR, 0x41); 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 278