diff options
Diffstat (limited to 'drivers/isdn/hisax/hscx.c')
| -rw-r--r-- | drivers/isdn/hisax/hscx.c | 277 |
1 files changed, 0 insertions, 277 deletions
diff --git a/drivers/isdn/hisax/hscx.c b/drivers/isdn/hisax/hscx.c deleted file mode 100644 index 3e305fec0ed9..000000000000 --- a/drivers/isdn/hisax/hscx.c +++ /dev/null @@ -1,277 +0,0 @@ -/* $Id: hscx.c,v 1.24.2.4 2004/01/24 20:47:23 keil Exp $ - * - * HSCX specific routines - * - * 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 "hscx.h" -#include "isac.h" -#include "isdnl1.h" -#include <linux/interrupt.h> -#include <linux/slab.h> - -static char *HSCXVer[] = -{"A1", "?1", "A2", "?3", "A3", "V2.1", "?6", "?7", - "?8", "?9", "?10", "?11", "?12", "?13", "?14", "???"}; - -int -HscxVersion(struct IsdnCardState *cs, char *s) -{ - int verA, verB; - - verA = cs->BC_Read_Reg(cs, 0, HSCX_VSTR) & 0xf; - verB = cs->BC_Read_Reg(cs, 1, HSCX_VSTR) & 0xf; - printk(KERN_INFO "%s HSCX version A: %s B: %s\n", s, - HSCXVer[verA], HSCXVer[verB]); - if ((verA == 0) | (verA == 0xf) | (verB == 0) | (verB == 0xf)) - return (1); - else - return (0); -} - -void -modehscx(struct BCState *bcs, int mode, int bc) -{ - struct IsdnCardState *cs = bcs->cs; - int hscx = bcs->hw.hscx.hscx; - - if (cs->debug & L1_DEB_HSCX) - debugl1(cs, "hscx %c mode %d ichan %d", - 'A' + hscx, mode, bc); - bcs->mode = mode; - bcs->channel = bc; - cs->BC_Write_Reg(cs, hscx, HSCX_XAD1, 0xFF); - cs->BC_Write_Reg(cs, hscx, HSCX_XAD2, 0xFF); - cs->BC_Write_Reg(cs, hscx, HSCX_RAH2, 0xFF); - cs->BC_Write_Reg(cs, hscx, HSCX_XBCH, 0x0); - cs->BC_Write_Reg(cs, hscx, HSCX_RLCR, 0x0); - cs->BC_Write_Reg(cs, hscx, HSCX_CCR1, - test_bit(HW_IPAC, &cs->HW_Flags) ? 0x82 : 0x85); - cs->BC_Write_Reg(cs, hscx, HSCX_CCR2, 0x30); - cs->BC_Write_Reg(cs, hscx, HSCX_XCCR, 7); - cs->BC_Write_Reg(cs, hscx, HSCX_RCCR, 7); - - /* Switch IOM 1 SSI */ - if (test_bit(HW_IOM1, &cs->HW_Flags) && (hscx == 0)) - bc = 1 - bc; - - if (bc == 0) { - cs->BC_Write_Reg(cs, hscx, HSCX_TSAX, - test_bit(HW_IOM1, &cs->HW_Flags) ? 0x7 : bcs->hw.hscx.tsaxr0); - cs->BC_Write_Reg(cs, hscx, HSCX_TSAR, - test_bit(HW_IOM1, &cs->HW_Flags) ? 0x7 : bcs->hw.hscx.tsaxr0); - } else { - cs->BC_Write_Reg(cs, hscx, HSCX_TSAX, bcs->hw.hscx.tsaxr1); - cs->BC_Write_Reg(cs, hscx, HSCX_TSAR, bcs->hw.hscx.tsaxr1); - } - switch (mode) { - case (L1_MODE_NULL): - cs->BC_Write_Reg(cs, hscx, HSCX_TSAX, 0x1f); - cs->BC_Write_Reg(cs, hscx, HSCX_TSAR, 0x1f); - cs->BC_Write_Reg(cs, hscx, HSCX_MODE, 0x84); - break; - case (L1_MODE_TRANS): - cs->BC_Write_Reg(cs, hscx, HSCX_MODE, 0xe4); - break; - case (L1_MODE_HDLC): - cs->BC_Write_Reg(cs, hscx, HSCX_CCR1, - test_bit(HW_IPAC, &cs->HW_Flags) ? 0x8a : 0x8d); - cs->BC_Write_Reg(cs, hscx, HSCX_MODE, 0x8c); - break; - } - if (mode) - cs->BC_Write_Reg(cs, hscx, HSCX_CMDR, 0x41); - cs->BC_Write_Reg(cs, hscx, HSCX_ISTA, 0x00); -} - -void -hscx_l2l1(struct PStack *st, int pr, void *arg) -{ - struct BCState *bcs = st->l1.bcs; - u_long flags; - struct sk_buff *skb = arg; - - 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->hw.hscx.count = 0; - 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 "hscx_l2l1: this shouldn't happen\n"); - } else { - test_and_set_bit(BC_FLG_BUSY, &bcs->Flag); - bcs->tx_skb = skb; - bcs->hw.hscx.count = 0; - 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); - modehscx(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); - modehscx(bcs, 0, st->l1.bc); - spin_unlock_irqrestore(&bcs->cs->lock, flags); - st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL); - break; - } -} - -static void -close_hscxstate(struct BCState *bcs) -{ - modehscx(bcs, 0, bcs->channel); - if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) { - kfree(bcs->hw.hscx.rcvbuf); - bcs->hw.hscx.rcvbuf = NULL; - kfree(bcs->blog); - bcs->blog = 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); - } - } -} - -int -open_hscxstate(struct IsdnCardState *cs, struct BCState *bcs) -{ - if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) { - if (!(bcs->hw.hscx.rcvbuf = kmalloc(HSCX_BUFMAX, GFP_ATOMIC))) { - printk(KERN_WARNING - "HiSax: No memory for hscx.rcvbuf\n"); - test_and_clear_bit(BC_FLG_INIT, &bcs->Flag); - return (1); - } - if (!(bcs->blog = kmalloc(MAX_BLOG_SPACE, GFP_ATOMIC))) { - printk(KERN_WARNING - "HiSax: No memory for bcs->blog\n"); - test_and_clear_bit(BC_FLG_INIT, &bcs->Flag); - kfree(bcs->hw.hscx.rcvbuf); - bcs->hw.hscx.rcvbuf = NULL; - return (2); - } - 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; - return (0); -} - -static int -setstack_hscx(struct PStack *st, struct BCState *bcs) -{ - bcs->channel = st->l1.bc; - if (open_hscxstate(st->l1.hardware, bcs)) - return (-1); - st->l1.bcs = bcs; - st->l2.l2l1 = hscx_l2l1; - setstack_manager(st); - bcs->st = st; - setstack_l1_B(st); - return (0); -} - -void -clear_pending_hscx_ints(struct IsdnCardState *cs) -{ - int val, eval; - - val = cs->BC_Read_Reg(cs, 1, HSCX_ISTA); - debugl1(cs, "HSCX B ISTA %x", val); - if (val & 0x01) { - eval = cs->BC_Read_Reg(cs, 1, HSCX_EXIR); - debugl1(cs, "HSCX B EXIR %x", eval); - } - if (val & 0x02) { - eval = cs->BC_Read_Reg(cs, 0, HSCX_EXIR); - debugl1(cs, "HSCX A EXIR %x", eval); - } - val = cs->BC_Read_Reg(cs, 0, HSCX_ISTA); - debugl1(cs, "HSCX A ISTA %x", val); - val = cs->BC_Read_Reg(cs, 1, HSCX_STAR); - debugl1(cs, "HSCX B STAR %x", val); - val = cs->BC_Read_Reg(cs, 0, HSCX_STAR); - debugl1(cs, "HSCX A STAR %x", val); - /* disable all IRQ */ - cs->BC_Write_Reg(cs, 0, HSCX_MASK, 0xFF); - cs->BC_Write_Reg(cs, 1, HSCX_MASK, 0xFF); -} - -void -inithscx(struct IsdnCardState *cs) -{ - cs->bcs[0].BC_SetStack = setstack_hscx; - cs->bcs[1].BC_SetStack = setstack_hscx; - cs->bcs[0].BC_Close = close_hscxstate; - cs->bcs[1].BC_Close = close_hscxstate; - cs->bcs[0].hw.hscx.hscx = 0; - cs->bcs[1].hw.hscx.hscx = 1; - cs->bcs[0].hw.hscx.tsaxr0 = 0x2f; - cs->bcs[0].hw.hscx.tsaxr1 = 3; - cs->bcs[1].hw.hscx.tsaxr0 = 0x2f; - cs->bcs[1].hw.hscx.tsaxr1 = 3; - modehscx(cs->bcs, 0, 0); - modehscx(cs->bcs + 1, 0, 0); -} - -void -inithscxisac(struct IsdnCardState *cs, int part) -{ - if (part & 1) { - clear_pending_isac_ints(cs); - clear_pending_hscx_ints(cs); - initisac(cs); - inithscx(cs); - } - if (part & 2) { - /* Reenable all IRQ */ - cs->writeisac(cs, ISAC_MASK, 0); - cs->BC_Write_Reg(cs, 0, HSCX_MASK, 0); - cs->BC_Write_Reg(cs, 1, HSCX_MASK, 0); - /* RESET Receiver and Transmitter */ - cs->writeisac(cs, ISAC_CMDR, 0x41); - } -} |