mirror of https://gitee.com/openkylin/linux.git
1438 lines
36 KiB
C
1438 lines
36 KiB
C
/*
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* w6692.c mISDN driver for Winbond w6692 based cards
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*
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* Author Karsten Keil <kkeil@suse.de>
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* based on the w6692 I4L driver from Petr Novak <petr.novak@i.cz>
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*
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* Copyright 2009 by Karsten Keil <keil@isdn4linux.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <linux/interrupt.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include <linux/mISDNhw.h>
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#include <linux/slab.h>
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#include "w6692.h"
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#define W6692_REV "2.0"
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#define DBUSY_TIMER_VALUE 80
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enum {
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W6692_ASUS,
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W6692_WINBOND,
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W6692_USR
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};
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/* private data in the PCI devices list */
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struct w6692map {
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u_int subtype;
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char *name;
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};
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static const struct w6692map w6692_map[] =
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{
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{W6692_ASUS, "Dynalink/AsusCom IS64PH"},
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{W6692_WINBOND, "Winbond W6692"},
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{W6692_USR, "USR W6692"}
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};
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#ifndef PCI_VENDOR_ID_USR
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#define PCI_VENDOR_ID_USR 0x16ec
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#define PCI_DEVICE_ID_USR_6692 0x3409
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#endif
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struct w6692_ch {
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struct bchannel bch;
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u32 addr;
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struct timer_list timer;
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u8 b_mode;
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};
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struct w6692_hw {
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struct list_head list;
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struct pci_dev *pdev;
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char name[MISDN_MAX_IDLEN];
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u32 irq;
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u32 irqcnt;
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u32 addr;
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u32 fmask; /* feature mask - bit set per card nr */
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int subtype;
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spinlock_t lock; /* hw lock */
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u8 imask;
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u8 pctl;
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u8 xaddr;
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u8 xdata;
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u8 state;
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struct w6692_ch bc[2];
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struct dchannel dch;
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char log[64];
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};
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static LIST_HEAD(Cards);
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static DEFINE_RWLOCK(card_lock); /* protect Cards */
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static int w6692_cnt;
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static int debug;
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static u32 led;
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static u32 pots;
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static void
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_set_debug(struct w6692_hw *card)
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{
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card->dch.debug = debug;
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card->bc[0].bch.debug = debug;
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card->bc[1].bch.debug = debug;
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}
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static int
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set_debug(const char *val, struct kernel_param *kp)
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{
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int ret;
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struct w6692_hw *card;
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ret = param_set_uint(val, kp);
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if (!ret) {
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read_lock(&card_lock);
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list_for_each_entry(card, &Cards, list)
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_set_debug(card);
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read_unlock(&card_lock);
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}
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return ret;
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}
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MODULE_AUTHOR("Karsten Keil");
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MODULE_LICENSE("GPL v2");
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MODULE_VERSION(W6692_REV);
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module_param_call(debug, set_debug, param_get_uint, &debug, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(debug, "W6692 debug mask");
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module_param(led, uint, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(led, "W6692 LED support bitmask (one bit per card)");
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module_param(pots, uint, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(pots, "W6692 POTS support bitmask (one bit per card)");
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static inline u8
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ReadW6692(struct w6692_hw *card, u8 offset)
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{
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return inb(card->addr + offset);
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}
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static inline void
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WriteW6692(struct w6692_hw *card, u8 offset, u8 value)
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{
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outb(value, card->addr + offset);
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}
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static inline u8
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ReadW6692B(struct w6692_ch *bc, u8 offset)
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{
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return inb(bc->addr + offset);
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}
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static inline void
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WriteW6692B(struct w6692_ch *bc, u8 offset, u8 value)
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{
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outb(value, bc->addr + offset);
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}
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static void
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enable_hwirq(struct w6692_hw *card)
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{
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WriteW6692(card, W_IMASK, card->imask);
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}
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static void
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disable_hwirq(struct w6692_hw *card)
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{
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WriteW6692(card, W_IMASK, 0xff);
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}
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static const char *W6692Ver[] = {"V00", "V01", "V10", "V11"};
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static void
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W6692Version(struct w6692_hw *card)
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{
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int val;
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val = ReadW6692(card, W_D_RBCH);
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pr_notice("%s: Winbond W6692 version: %s\n", card->name,
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W6692Ver[(val >> 6) & 3]);
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}
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static void
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w6692_led_handler(struct w6692_hw *card, int on)
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{
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if ((!(card->fmask & led)) || card->subtype == W6692_USR)
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return;
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if (on) {
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card->xdata &= 0xfb; /* LED ON */
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WriteW6692(card, W_XDATA, card->xdata);
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} else {
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card->xdata |= 0x04; /* LED OFF */
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WriteW6692(card, W_XDATA, card->xdata);
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}
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}
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static void
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ph_command(struct w6692_hw *card, u8 cmd)
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{
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pr_debug("%s: ph_command %x\n", card->name, cmd);
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WriteW6692(card, W_CIX, cmd);
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}
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static void
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W6692_new_ph(struct w6692_hw *card)
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{
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if (card->state == W_L1CMD_RST)
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ph_command(card, W_L1CMD_DRC);
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schedule_event(&card->dch, FLG_PHCHANGE);
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}
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static void
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W6692_ph_bh(struct dchannel *dch)
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{
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struct w6692_hw *card = dch->hw;
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switch (card->state) {
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case W_L1CMD_RST:
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dch->state = 0;
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l1_event(dch->l1, HW_RESET_IND);
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break;
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case W_L1IND_CD:
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dch->state = 3;
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l1_event(dch->l1, HW_DEACT_CNF);
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break;
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case W_L1IND_DRD:
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dch->state = 3;
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l1_event(dch->l1, HW_DEACT_IND);
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break;
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case W_L1IND_CE:
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dch->state = 4;
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l1_event(dch->l1, HW_POWERUP_IND);
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break;
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case W_L1IND_LD:
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if (dch->state <= 5) {
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dch->state = 5;
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l1_event(dch->l1, ANYSIGNAL);
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} else {
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dch->state = 8;
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l1_event(dch->l1, LOSTFRAMING);
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}
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break;
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case W_L1IND_ARD:
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dch->state = 6;
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l1_event(dch->l1, INFO2);
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break;
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case W_L1IND_AI8:
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dch->state = 7;
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l1_event(dch->l1, INFO4_P8);
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break;
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case W_L1IND_AI10:
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dch->state = 7;
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l1_event(dch->l1, INFO4_P10);
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break;
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default:
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pr_debug("%s: TE unknown state %02x dch state %02x\n",
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card->name, card->state, dch->state);
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break;
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}
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pr_debug("%s: TE newstate %02x\n", card->name, dch->state);
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}
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static void
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W6692_empty_Dfifo(struct w6692_hw *card, int count)
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{
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struct dchannel *dch = &card->dch;
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u8 *ptr;
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pr_debug("%s: empty_Dfifo %d\n", card->name, count);
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if (!dch->rx_skb) {
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dch->rx_skb = mI_alloc_skb(card->dch.maxlen, GFP_ATOMIC);
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if (!dch->rx_skb) {
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pr_info("%s: D receive out of memory\n", card->name);
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WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK);
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return;
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}
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}
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if ((dch->rx_skb->len + count) >= dch->maxlen) {
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pr_debug("%s: empty_Dfifo overrun %d\n", card->name,
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dch->rx_skb->len + count);
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WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK);
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return;
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}
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ptr = skb_put(dch->rx_skb, count);
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insb(card->addr + W_D_RFIFO, ptr, count);
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WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK);
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if (debug & DEBUG_HW_DFIFO) {
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snprintf(card->log, 63, "D-recv %s %d ",
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card->name, count);
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print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count);
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}
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}
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static void
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W6692_fill_Dfifo(struct w6692_hw *card)
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{
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struct dchannel *dch = &card->dch;
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int count;
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u8 *ptr;
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u8 cmd = W_D_CMDR_XMS;
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pr_debug("%s: fill_Dfifo\n", card->name);
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if (!dch->tx_skb)
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return;
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count = dch->tx_skb->len - dch->tx_idx;
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if (count <= 0)
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return;
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if (count > W_D_FIFO_THRESH)
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count = W_D_FIFO_THRESH;
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else
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cmd |= W_D_CMDR_XME;
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ptr = dch->tx_skb->data + dch->tx_idx;
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dch->tx_idx += count;
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outsb(card->addr + W_D_XFIFO, ptr, count);
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WriteW6692(card, W_D_CMDR, cmd);
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if (test_and_set_bit(FLG_BUSY_TIMER, &dch->Flags)) {
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pr_debug("%s: fill_Dfifo dbusytimer running\n", card->name);
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del_timer(&dch->timer);
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}
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init_timer(&dch->timer);
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dch->timer.expires = jiffies + ((DBUSY_TIMER_VALUE * HZ) / 1000);
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add_timer(&dch->timer);
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if (debug & DEBUG_HW_DFIFO) {
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snprintf(card->log, 63, "D-send %s %d ",
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card->name, count);
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print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count);
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}
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}
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static void
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d_retransmit(struct w6692_hw *card)
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{
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struct dchannel *dch = &card->dch;
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if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags))
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del_timer(&dch->timer);
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#ifdef FIXME
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if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags))
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dchannel_sched_event(dch, D_CLEARBUSY);
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#endif
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if (test_bit(FLG_TX_BUSY, &dch->Flags)) {
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/* Restart frame */
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dch->tx_idx = 0;
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W6692_fill_Dfifo(card);
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} else if (dch->tx_skb) { /* should not happen */
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pr_info("%s: %s without TX_BUSY\n", card->name, __func__);
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test_and_set_bit(FLG_TX_BUSY, &dch->Flags);
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dch->tx_idx = 0;
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W6692_fill_Dfifo(card);
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} else {
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pr_info("%s: XDU no TX_BUSY\n", card->name);
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if (get_next_dframe(dch))
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W6692_fill_Dfifo(card);
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}
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}
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static void
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handle_rxD(struct w6692_hw *card) {
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u8 stat;
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int count;
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stat = ReadW6692(card, W_D_RSTA);
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if (stat & (W_D_RSTA_RDOV | W_D_RSTA_CRCE | W_D_RSTA_RMB)) {
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if (stat & W_D_RSTA_RDOV) {
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pr_debug("%s: D-channel RDOV\n", card->name);
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#ifdef ERROR_STATISTIC
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card->dch.err_rx++;
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#endif
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}
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if (stat & W_D_RSTA_CRCE) {
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pr_debug("%s: D-channel CRC error\n", card->name);
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#ifdef ERROR_STATISTIC
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card->dch.err_crc++;
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#endif
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}
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if (stat & W_D_RSTA_RMB) {
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pr_debug("%s: D-channel ABORT\n", card->name);
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#ifdef ERROR_STATISTIC
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card->dch.err_rx++;
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#endif
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}
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if (card->dch.rx_skb)
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dev_kfree_skb(card->dch.rx_skb);
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card->dch.rx_skb = NULL;
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WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK | W_D_CMDR_RRST);
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} else {
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count = ReadW6692(card, W_D_RBCL) & (W_D_FIFO_THRESH - 1);
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if (count == 0)
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count = W_D_FIFO_THRESH;
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W6692_empty_Dfifo(card, count);
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recv_Dchannel(&card->dch);
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}
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}
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static void
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handle_txD(struct w6692_hw *card) {
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if (test_and_clear_bit(FLG_BUSY_TIMER, &card->dch.Flags))
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del_timer(&card->dch.timer);
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if (card->dch.tx_skb && card->dch.tx_idx < card->dch.tx_skb->len) {
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W6692_fill_Dfifo(card);
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} else {
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if (card->dch.tx_skb)
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dev_kfree_skb(card->dch.tx_skb);
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if (get_next_dframe(&card->dch))
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W6692_fill_Dfifo(card);
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}
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}
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static void
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handle_statusD(struct w6692_hw *card)
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{
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struct dchannel *dch = &card->dch;
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u8 exval, v1, cir;
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exval = ReadW6692(card, W_D_EXIR);
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pr_debug("%s: D_EXIR %02x\n", card->name, exval);
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if (exval & (W_D_EXI_XDUN | W_D_EXI_XCOL)) {
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/* Transmit underrun/collision */
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pr_debug("%s: D-channel underrun/collision\n", card->name);
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#ifdef ERROR_STATISTIC
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dch->err_tx++;
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#endif
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d_retransmit(card);
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}
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if (exval & W_D_EXI_RDOV) { /* RDOV */
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pr_debug("%s: D-channel RDOV\n", card->name);
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WriteW6692(card, W_D_CMDR, W_D_CMDR_RRST);
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}
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if (exval & W_D_EXI_TIN2) /* TIN2 - never */
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pr_debug("%s: spurious TIN2 interrupt\n", card->name);
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if (exval & W_D_EXI_MOC) { /* MOC - not supported */
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v1 = ReadW6692(card, W_MOSR);
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pr_debug("%s: spurious MOC interrupt MOSR %02x\n",
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card->name, v1);
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}
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if (exval & W_D_EXI_ISC) { /* ISC - Level1 change */
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cir = ReadW6692(card, W_CIR);
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pr_debug("%s: ISC CIR %02X\n", card->name, cir);
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if (cir & W_CIR_ICC) {
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v1 = cir & W_CIR_COD_MASK;
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pr_debug("%s: ph_state_change %x -> %x\n", card->name,
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dch->state, v1);
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card->state = v1;
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if (card->fmask & led) {
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switch (v1) {
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case W_L1IND_AI8:
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case W_L1IND_AI10:
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w6692_led_handler(card, 1);
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break;
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default:
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w6692_led_handler(card, 0);
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break;
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}
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}
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W6692_new_ph(card);
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}
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if (cir & W_CIR_SCC) {
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v1 = ReadW6692(card, W_SQR);
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pr_debug("%s: SCC SQR %02X\n", card->name, v1);
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}
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}
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if (exval & W_D_EXI_WEXP)
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pr_debug("%s: spurious WEXP interrupt!\n", card->name);
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if (exval & W_D_EXI_TEXP)
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pr_debug("%s: spurious TEXP interrupt!\n", card->name);
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}
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static void
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W6692_empty_Bfifo(struct w6692_ch *wch, int count)
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{
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struct w6692_hw *card = wch->bch.hw;
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u8 *ptr;
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int maxlen;
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pr_debug("%s: empty_Bfifo %d\n", card->name, count);
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if (unlikely(wch->bch.state == ISDN_P_NONE)) {
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pr_debug("%s: empty_Bfifo ISDN_P_NONE\n", card->name);
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WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
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if (wch->bch.rx_skb)
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skb_trim(wch->bch.rx_skb, 0);
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return;
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}
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if (test_bit(FLG_RX_OFF, &wch->bch.Flags)) {
|
|
wch->bch.dropcnt += count;
|
|
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
|
|
return;
|
|
}
|
|
maxlen = bchannel_get_rxbuf(&wch->bch, count);
|
|
if (maxlen < 0) {
|
|
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
|
|
if (wch->bch.rx_skb)
|
|
skb_trim(wch->bch.rx_skb, 0);
|
|
pr_warning("%s.B%d: No bufferspace for %d bytes\n",
|
|
card->name, wch->bch.nr, count);
|
|
return;
|
|
}
|
|
ptr = skb_put(wch->bch.rx_skb, count);
|
|
insb(wch->addr + W_B_RFIFO, ptr, count);
|
|
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
|
|
if (debug & DEBUG_HW_DFIFO) {
|
|
snprintf(card->log, 63, "B%1d-recv %s %d ",
|
|
wch->bch.nr, card->name, count);
|
|
print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count);
|
|
}
|
|
}
|
|
|
|
static void
|
|
W6692_fill_Bfifo(struct w6692_ch *wch)
|
|
{
|
|
struct w6692_hw *card = wch->bch.hw;
|
|
int count, fillempty = 0;
|
|
u8 *ptr, cmd = W_B_CMDR_RACT | W_B_CMDR_XMS;
|
|
|
|
pr_debug("%s: fill Bfifo\n", card->name);
|
|
if (!wch->bch.tx_skb) {
|
|
if (!test_bit(FLG_TX_EMPTY, &wch->bch.Flags))
|
|
return;
|
|
ptr = wch->bch.fill;
|
|
count = W_B_FIFO_THRESH;
|
|
fillempty = 1;
|
|
} else {
|
|
count = wch->bch.tx_skb->len - wch->bch.tx_idx;
|
|
if (count <= 0)
|
|
return;
|
|
ptr = wch->bch.tx_skb->data + wch->bch.tx_idx;
|
|
}
|
|
if (count > W_B_FIFO_THRESH)
|
|
count = W_B_FIFO_THRESH;
|
|
else if (test_bit(FLG_HDLC, &wch->bch.Flags))
|
|
cmd |= W_B_CMDR_XME;
|
|
|
|
pr_debug("%s: fill Bfifo%d/%d\n", card->name,
|
|
count, wch->bch.tx_idx);
|
|
wch->bch.tx_idx += count;
|
|
if (fillempty) {
|
|
while (count > 0) {
|
|
outsb(wch->addr + W_B_XFIFO, ptr, MISDN_BCH_FILL_SIZE);
|
|
count -= MISDN_BCH_FILL_SIZE;
|
|
}
|
|
} else {
|
|
outsb(wch->addr + W_B_XFIFO, ptr, count);
|
|
}
|
|
WriteW6692B(wch, W_B_CMDR, cmd);
|
|
if ((debug & DEBUG_HW_BFIFO) && !fillempty) {
|
|
snprintf(card->log, 63, "B%1d-send %s %d ",
|
|
wch->bch.nr, card->name, count);
|
|
print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count);
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
static int
|
|
setvolume(struct w6692_ch *wch, int mic, struct sk_buff *skb)
|
|
{
|
|
struct w6692_hw *card = wch->bch.hw;
|
|
u16 *vol = (u16 *)skb->data;
|
|
u8 val;
|
|
|
|
if ((!(card->fmask & pots)) ||
|
|
!test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
|
|
return -ENODEV;
|
|
if (skb->len < 2)
|
|
return -EINVAL;
|
|
if (*vol > 7)
|
|
return -EINVAL;
|
|
val = *vol & 7;
|
|
val = 7 - val;
|
|
if (mic) {
|
|
val <<= 3;
|
|
card->xaddr &= 0xc7;
|
|
} else {
|
|
card->xaddr &= 0xf8;
|
|
}
|
|
card->xaddr |= val;
|
|
WriteW6692(card, W_XADDR, card->xaddr);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
enable_pots(struct w6692_ch *wch)
|
|
{
|
|
struct w6692_hw *card = wch->bch.hw;
|
|
|
|
if ((!(card->fmask & pots)) ||
|
|
!test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
|
|
return -ENODEV;
|
|
wch->b_mode |= W_B_MODE_EPCM | W_B_MODE_BSW0;
|
|
WriteW6692B(wch, W_B_MODE, wch->b_mode);
|
|
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST);
|
|
card->pctl |= ((wch->bch.nr & 2) ? W_PCTL_PCX : 0);
|
|
WriteW6692(card, W_PCTL, card->pctl);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
disable_pots(struct w6692_ch *wch)
|
|
{
|
|
struct w6692_hw *card = wch->bch.hw;
|
|
|
|
if (!(card->fmask & pots))
|
|
return -ENODEV;
|
|
wch->b_mode &= ~(W_B_MODE_EPCM | W_B_MODE_BSW0);
|
|
WriteW6692B(wch, W_B_MODE, wch->b_mode);
|
|
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT |
|
|
W_B_CMDR_XRST);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
w6692_mode(struct w6692_ch *wch, u32 pr)
|
|
{
|
|
struct w6692_hw *card;
|
|
|
|
card = wch->bch.hw;
|
|
pr_debug("%s: B%d protocol %x-->%x\n", card->name,
|
|
wch->bch.nr, wch->bch.state, pr);
|
|
switch (pr) {
|
|
case ISDN_P_NONE:
|
|
if ((card->fmask & pots) && (wch->b_mode & W_B_MODE_EPCM))
|
|
disable_pots(wch);
|
|
wch->b_mode = 0;
|
|
mISDN_clear_bchannel(&wch->bch);
|
|
WriteW6692B(wch, W_B_MODE, wch->b_mode);
|
|
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST);
|
|
test_and_clear_bit(FLG_HDLC, &wch->bch.Flags);
|
|
test_and_clear_bit(FLG_TRANSPARENT, &wch->bch.Flags);
|
|
break;
|
|
case ISDN_P_B_RAW:
|
|
wch->b_mode = W_B_MODE_MMS;
|
|
WriteW6692B(wch, W_B_MODE, wch->b_mode);
|
|
WriteW6692B(wch, W_B_EXIM, 0);
|
|
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT |
|
|
W_B_CMDR_XRST);
|
|
test_and_set_bit(FLG_TRANSPARENT, &wch->bch.Flags);
|
|
break;
|
|
case ISDN_P_B_HDLC:
|
|
wch->b_mode = W_B_MODE_ITF;
|
|
WriteW6692B(wch, W_B_MODE, wch->b_mode);
|
|
WriteW6692B(wch, W_B_ADM1, 0xff);
|
|
WriteW6692B(wch, W_B_ADM2, 0xff);
|
|
WriteW6692B(wch, W_B_EXIM, 0);
|
|
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT |
|
|
W_B_CMDR_XRST);
|
|
test_and_set_bit(FLG_HDLC, &wch->bch.Flags);
|
|
break;
|
|
default:
|
|
pr_info("%s: protocol %x not known\n", card->name, pr);
|
|
return -ENOPROTOOPT;
|
|
}
|
|
wch->bch.state = pr;
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
send_next(struct w6692_ch *wch)
|
|
{
|
|
if (wch->bch.tx_skb && wch->bch.tx_idx < wch->bch.tx_skb->len) {
|
|
W6692_fill_Bfifo(wch);
|
|
} else {
|
|
if (wch->bch.tx_skb)
|
|
dev_kfree_skb(wch->bch.tx_skb);
|
|
if (get_next_bframe(&wch->bch)) {
|
|
W6692_fill_Bfifo(wch);
|
|
test_and_clear_bit(FLG_TX_EMPTY, &wch->bch.Flags);
|
|
} else if (test_bit(FLG_TX_EMPTY, &wch->bch.Flags)) {
|
|
W6692_fill_Bfifo(wch);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
W6692B_interrupt(struct w6692_hw *card, int ch)
|
|
{
|
|
struct w6692_ch *wch = &card->bc[ch];
|
|
int count;
|
|
u8 stat, star = 0;
|
|
|
|
stat = ReadW6692B(wch, W_B_EXIR);
|
|
pr_debug("%s: B%d EXIR %02x\n", card->name, wch->bch.nr, stat);
|
|
if (stat & W_B_EXI_RME) {
|
|
star = ReadW6692B(wch, W_B_STAR);
|
|
if (star & (W_B_STAR_RDOV | W_B_STAR_CRCE | W_B_STAR_RMB)) {
|
|
if ((star & W_B_STAR_RDOV) &&
|
|
test_bit(FLG_ACTIVE, &wch->bch.Flags)) {
|
|
pr_debug("%s: B%d RDOV proto=%x\n", card->name,
|
|
wch->bch.nr, wch->bch.state);
|
|
#ifdef ERROR_STATISTIC
|
|
wch->bch.err_rdo++;
|
|
#endif
|
|
}
|
|
if (test_bit(FLG_HDLC, &wch->bch.Flags)) {
|
|
if (star & W_B_STAR_CRCE) {
|
|
pr_debug("%s: B%d CRC error\n",
|
|
card->name, wch->bch.nr);
|
|
#ifdef ERROR_STATISTIC
|
|
wch->bch.err_crc++;
|
|
#endif
|
|
}
|
|
if (star & W_B_STAR_RMB) {
|
|
pr_debug("%s: B%d message abort\n",
|
|
card->name, wch->bch.nr);
|
|
#ifdef ERROR_STATISTIC
|
|
wch->bch.err_inv++;
|
|
#endif
|
|
}
|
|
}
|
|
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK |
|
|
W_B_CMDR_RRST | W_B_CMDR_RACT);
|
|
if (wch->bch.rx_skb)
|
|
skb_trim(wch->bch.rx_skb, 0);
|
|
} else {
|
|
count = ReadW6692B(wch, W_B_RBCL) &
|
|
(W_B_FIFO_THRESH - 1);
|
|
if (count == 0)
|
|
count = W_B_FIFO_THRESH;
|
|
W6692_empty_Bfifo(wch, count);
|
|
recv_Bchannel(&wch->bch, 0, false);
|
|
}
|
|
}
|
|
if (stat & W_B_EXI_RMR) {
|
|
if (!(stat & W_B_EXI_RME))
|
|
star = ReadW6692B(wch, W_B_STAR);
|
|
if (star & W_B_STAR_RDOV) {
|
|
pr_debug("%s: B%d RDOV proto=%x\n", card->name,
|
|
wch->bch.nr, wch->bch.state);
|
|
#ifdef ERROR_STATISTIC
|
|
wch->bch.err_rdo++;
|
|
#endif
|
|
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK |
|
|
W_B_CMDR_RRST | W_B_CMDR_RACT);
|
|
} else {
|
|
W6692_empty_Bfifo(wch, W_B_FIFO_THRESH);
|
|
if (test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
|
|
recv_Bchannel(&wch->bch, 0, false);
|
|
}
|
|
}
|
|
if (stat & W_B_EXI_RDOV) {
|
|
/* only if it is not handled yet */
|
|
if (!(star & W_B_STAR_RDOV)) {
|
|
pr_debug("%s: B%d RDOV IRQ proto=%x\n", card->name,
|
|
wch->bch.nr, wch->bch.state);
|
|
#ifdef ERROR_STATISTIC
|
|
wch->bch.err_rdo++;
|
|
#endif
|
|
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK |
|
|
W_B_CMDR_RRST | W_B_CMDR_RACT);
|
|
}
|
|
}
|
|
if (stat & W_B_EXI_XFR) {
|
|
if (!(stat & (W_B_EXI_RME | W_B_EXI_RMR))) {
|
|
star = ReadW6692B(wch, W_B_STAR);
|
|
pr_debug("%s: B%d star %02x\n", card->name,
|
|
wch->bch.nr, star);
|
|
}
|
|
if (star & W_B_STAR_XDOW) {
|
|
pr_warning("%s: B%d XDOW proto=%x\n", card->name,
|
|
wch->bch.nr, wch->bch.state);
|
|
#ifdef ERROR_STATISTIC
|
|
wch->bch.err_xdu++;
|
|
#endif
|
|
WriteW6692B(wch, W_B_CMDR, W_B_CMDR_XRST |
|
|
W_B_CMDR_RACT);
|
|
/* resend */
|
|
if (wch->bch.tx_skb) {
|
|
if (!test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
|
|
wch->bch.tx_idx = 0;
|
|
}
|
|
}
|
|
send_next(wch);
|
|
if (star & W_B_STAR_XDOW)
|
|
return; /* handle XDOW only once */
|
|
}
|
|
if (stat & W_B_EXI_XDUN) {
|
|
pr_warning("%s: B%d XDUN proto=%x\n", card->name,
|
|
wch->bch.nr, wch->bch.state);
|
|
#ifdef ERROR_STATISTIC
|
|
wch->bch.err_xdu++;
|
|
#endif
|
|
/* resend - no XRST needed */
|
|
if (wch->bch.tx_skb) {
|
|
if (!test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
|
|
wch->bch.tx_idx = 0;
|
|
} else if (test_bit(FLG_FILLEMPTY, &wch->bch.Flags)) {
|
|
test_and_set_bit(FLG_TX_EMPTY, &wch->bch.Flags);
|
|
}
|
|
send_next(wch);
|
|
}
|
|
}
|
|
|
|
static irqreturn_t
|
|
w6692_irq(int intno, void *dev_id)
|
|
{
|
|
struct w6692_hw *card = dev_id;
|
|
u8 ista;
|
|
|
|
spin_lock(&card->lock);
|
|
ista = ReadW6692(card, W_ISTA);
|
|
if ((ista | card->imask) == card->imask) {
|
|
/* possible a shared IRQ reqest */
|
|
spin_unlock(&card->lock);
|
|
return IRQ_NONE;
|
|
}
|
|
card->irqcnt++;
|
|
pr_debug("%s: ista %02x\n", card->name, ista);
|
|
ista &= ~card->imask;
|
|
if (ista & W_INT_B1_EXI)
|
|
W6692B_interrupt(card, 0);
|
|
if (ista & W_INT_B2_EXI)
|
|
W6692B_interrupt(card, 1);
|
|
if (ista & W_INT_D_RME)
|
|
handle_rxD(card);
|
|
if (ista & W_INT_D_RMR)
|
|
W6692_empty_Dfifo(card, W_D_FIFO_THRESH);
|
|
if (ista & W_INT_D_XFR)
|
|
handle_txD(card);
|
|
if (ista & W_INT_D_EXI)
|
|
handle_statusD(card);
|
|
if (ista & (W_INT_XINT0 | W_INT_XINT1)) /* XINT0/1 - never */
|
|
pr_debug("%s: W6692 spurious XINT!\n", card->name);
|
|
/* End IRQ Handler */
|
|
spin_unlock(&card->lock);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static void
|
|
dbusy_timer_handler(struct dchannel *dch)
|
|
{
|
|
struct w6692_hw *card = dch->hw;
|
|
int rbch, star;
|
|
u_long flags;
|
|
|
|
if (test_bit(FLG_BUSY_TIMER, &dch->Flags)) {
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
rbch = ReadW6692(card, W_D_RBCH);
|
|
star = ReadW6692(card, W_D_STAR);
|
|
pr_debug("%s: D-Channel Busy RBCH %02x STAR %02x\n",
|
|
card->name, rbch, star);
|
|
if (star & W_D_STAR_XBZ) /* D-Channel Busy */
|
|
test_and_set_bit(FLG_L1_BUSY, &dch->Flags);
|
|
else {
|
|
/* discard frame; reset transceiver */
|
|
test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags);
|
|
if (dch->tx_idx)
|
|
dch->tx_idx = 0;
|
|
else
|
|
pr_info("%s: W6692 D-Channel Busy no tx_idx\n",
|
|
card->name);
|
|
/* Transmitter reset */
|
|
WriteW6692(card, W_D_CMDR, W_D_CMDR_XRST);
|
|
}
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
}
|
|
}
|
|
|
|
void initW6692(struct w6692_hw *card)
|
|
{
|
|
u8 val;
|
|
|
|
card->dch.timer.function = (void *)dbusy_timer_handler;
|
|
card->dch.timer.data = (u_long)&card->dch;
|
|
init_timer(&card->dch.timer);
|
|
w6692_mode(&card->bc[0], ISDN_P_NONE);
|
|
w6692_mode(&card->bc[1], ISDN_P_NONE);
|
|
WriteW6692(card, W_D_CTL, 0x00);
|
|
disable_hwirq(card);
|
|
WriteW6692(card, W_D_SAM, 0xff);
|
|
WriteW6692(card, W_D_TAM, 0xff);
|
|
WriteW6692(card, W_D_MODE, W_D_MODE_RACT);
|
|
card->state = W_L1CMD_RST;
|
|
ph_command(card, W_L1CMD_RST);
|
|
ph_command(card, W_L1CMD_ECK);
|
|
/* enable all IRQ but extern */
|
|
card->imask = 0x18;
|
|
WriteW6692(card, W_D_EXIM, 0x00);
|
|
WriteW6692B(&card->bc[0], W_B_EXIM, 0);
|
|
WriteW6692B(&card->bc[1], W_B_EXIM, 0);
|
|
/* Reset D-chan receiver and transmitter */
|
|
WriteW6692(card, W_D_CMDR, W_D_CMDR_RRST | W_D_CMDR_XRST);
|
|
/* Reset B-chan receiver and transmitter */
|
|
WriteW6692B(&card->bc[0], W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST);
|
|
WriteW6692B(&card->bc[1], W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST);
|
|
/* enable peripheral */
|
|
if (card->subtype == W6692_USR) {
|
|
/* seems that USR implemented some power control features
|
|
* Pin 79 is connected to the oscilator circuit so we
|
|
* have to handle it here
|
|
*/
|
|
card->pctl = 0x80;
|
|
card->xdata = 0;
|
|
WriteW6692(card, W_PCTL, card->pctl);
|
|
WriteW6692(card, W_XDATA, card->xdata);
|
|
} else {
|
|
card->pctl = W_PCTL_OE5 | W_PCTL_OE4 | W_PCTL_OE2 |
|
|
W_PCTL_OE1 | W_PCTL_OE0;
|
|
card->xaddr = 0x00;/* all sw off */
|
|
if (card->fmask & pots)
|
|
card->xdata |= 0x06; /* POWER UP/ LED OFF / ALAW */
|
|
if (card->fmask & led)
|
|
card->xdata |= 0x04; /* LED OFF */
|
|
if ((card->fmask & pots) || (card->fmask & led)) {
|
|
WriteW6692(card, W_PCTL, card->pctl);
|
|
WriteW6692(card, W_XADDR, card->xaddr);
|
|
WriteW6692(card, W_XDATA, card->xdata);
|
|
val = ReadW6692(card, W_XADDR);
|
|
if (debug & DEBUG_HW)
|
|
pr_notice("%s: W_XADDR=%02x\n",
|
|
card->name, val);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
reset_w6692(struct w6692_hw *card)
|
|
{
|
|
WriteW6692(card, W_D_CTL, W_D_CTL_SRST);
|
|
mdelay(10);
|
|
WriteW6692(card, W_D_CTL, 0);
|
|
}
|
|
|
|
static int
|
|
init_card(struct w6692_hw *card)
|
|
{
|
|
int cnt = 3;
|
|
u_long flags;
|
|
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
disable_hwirq(card);
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
if (request_irq(card->irq, w6692_irq, IRQF_SHARED, card->name, card)) {
|
|
pr_info("%s: couldn't get interrupt %d\n", card->name,
|
|
card->irq);
|
|
return -EIO;
|
|
}
|
|
while (cnt--) {
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
initW6692(card);
|
|
enable_hwirq(card);
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
/* Timeout 10ms */
|
|
msleep_interruptible(10);
|
|
if (debug & DEBUG_HW)
|
|
pr_notice("%s: IRQ %d count %d\n", card->name,
|
|
card->irq, card->irqcnt);
|
|
if (!card->irqcnt) {
|
|
pr_info("%s: IRQ(%d) getting no IRQs during init %d\n",
|
|
card->name, card->irq, 3 - cnt);
|
|
reset_w6692(card);
|
|
} else
|
|
return 0;
|
|
}
|
|
free_irq(card->irq, card);
|
|
return -EIO;
|
|
}
|
|
|
|
static int
|
|
w6692_l2l1B(struct mISDNchannel *ch, struct sk_buff *skb)
|
|
{
|
|
struct bchannel *bch = container_of(ch, struct bchannel, ch);
|
|
struct w6692_ch *bc = container_of(bch, struct w6692_ch, bch);
|
|
struct w6692_hw *card = bch->hw;
|
|
int ret = -EINVAL;
|
|
struct mISDNhead *hh = mISDN_HEAD_P(skb);
|
|
unsigned long flags;
|
|
|
|
switch (hh->prim) {
|
|
case PH_DATA_REQ:
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
ret = bchannel_senddata(bch, skb);
|
|
if (ret > 0) { /* direct TX */
|
|
ret = 0;
|
|
W6692_fill_Bfifo(bc);
|
|
}
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
return ret;
|
|
case PH_ACTIVATE_REQ:
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags))
|
|
ret = w6692_mode(bc, ch->protocol);
|
|
else
|
|
ret = 0;
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
if (!ret)
|
|
_queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0,
|
|
NULL, GFP_KERNEL);
|
|
break;
|
|
case PH_DEACTIVATE_REQ:
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
mISDN_clear_bchannel(bch);
|
|
w6692_mode(bc, ISDN_P_NONE);
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
_queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0,
|
|
NULL, GFP_KERNEL);
|
|
ret = 0;
|
|
break;
|
|
default:
|
|
pr_info("%s: %s unknown prim(%x,%x)\n",
|
|
card->name, __func__, hh->prim, hh->id);
|
|
ret = -EINVAL;
|
|
}
|
|
if (!ret)
|
|
dev_kfree_skb(skb);
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq)
|
|
{
|
|
return mISDN_ctrl_bchannel(bch, cq);
|
|
}
|
|
|
|
static int
|
|
open_bchannel(struct w6692_hw *card, struct channel_req *rq)
|
|
{
|
|
struct bchannel *bch;
|
|
|
|
if (rq->adr.channel == 0 || rq->adr.channel > 2)
|
|
return -EINVAL;
|
|
if (rq->protocol == ISDN_P_NONE)
|
|
return -EINVAL;
|
|
bch = &card->bc[rq->adr.channel - 1].bch;
|
|
if (test_and_set_bit(FLG_OPEN, &bch->Flags))
|
|
return -EBUSY; /* b-channel can be only open once */
|
|
bch->ch.protocol = rq->protocol;
|
|
rq->ch = &bch->ch;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
channel_ctrl(struct w6692_hw *card, struct mISDN_ctrl_req *cq)
|
|
{
|
|
int ret = 0;
|
|
|
|
switch (cq->op) {
|
|
case MISDN_CTRL_GETOP:
|
|
cq->op = MISDN_CTRL_L1_TIMER3;
|
|
break;
|
|
case MISDN_CTRL_L1_TIMER3:
|
|
ret = l1_event(card->dch.l1, HW_TIMER3_VALUE | (cq->p1 & 0xff));
|
|
break;
|
|
default:
|
|
pr_info("%s: unknown CTRL OP %x\n", card->name, cq->op);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
w6692_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
|
|
{
|
|
struct bchannel *bch = container_of(ch, struct bchannel, ch);
|
|
struct w6692_ch *bc = container_of(bch, struct w6692_ch, bch);
|
|
struct w6692_hw *card = bch->hw;
|
|
int ret = -EINVAL;
|
|
u_long flags;
|
|
|
|
pr_debug("%s: %s cmd:%x %p\n", card->name, __func__, cmd, arg);
|
|
switch (cmd) {
|
|
case CLOSE_CHANNEL:
|
|
test_and_clear_bit(FLG_OPEN, &bch->Flags);
|
|
cancel_work_sync(&bch->workq);
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
mISDN_clear_bchannel(bch);
|
|
w6692_mode(bc, ISDN_P_NONE);
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
ch->protocol = ISDN_P_NONE;
|
|
ch->peer = NULL;
|
|
module_put(THIS_MODULE);
|
|
ret = 0;
|
|
break;
|
|
case CONTROL_CHANNEL:
|
|
ret = channel_bctrl(bch, arg);
|
|
break;
|
|
default:
|
|
pr_info("%s: %s unknown prim(%x)\n",
|
|
card->name, __func__, cmd);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
w6692_l2l1D(struct mISDNchannel *ch, struct sk_buff *skb)
|
|
{
|
|
struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
|
|
struct dchannel *dch = container_of(dev, struct dchannel, dev);
|
|
struct w6692_hw *card = container_of(dch, struct w6692_hw, dch);
|
|
int ret = -EINVAL;
|
|
struct mISDNhead *hh = mISDN_HEAD_P(skb);
|
|
u32 id;
|
|
u_long flags;
|
|
|
|
switch (hh->prim) {
|
|
case PH_DATA_REQ:
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
ret = dchannel_senddata(dch, skb);
|
|
if (ret > 0) { /* direct TX */
|
|
id = hh->id; /* skb can be freed */
|
|
W6692_fill_Dfifo(card);
|
|
ret = 0;
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
queue_ch_frame(ch, PH_DATA_CNF, id, NULL);
|
|
} else
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
return ret;
|
|
case PH_ACTIVATE_REQ:
|
|
ret = l1_event(dch->l1, hh->prim);
|
|
break;
|
|
case PH_DEACTIVATE_REQ:
|
|
test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags);
|
|
ret = l1_event(dch->l1, hh->prim);
|
|
break;
|
|
}
|
|
|
|
if (!ret)
|
|
dev_kfree_skb(skb);
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
w6692_l1callback(struct dchannel *dch, u32 cmd)
|
|
{
|
|
struct w6692_hw *card = container_of(dch, struct w6692_hw, dch);
|
|
u_long flags;
|
|
|
|
pr_debug("%s: cmd(%x) state(%02x)\n", card->name, cmd, card->state);
|
|
switch (cmd) {
|
|
case INFO3_P8:
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
ph_command(card, W_L1CMD_AR8);
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
break;
|
|
case INFO3_P10:
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
ph_command(card, W_L1CMD_AR10);
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
break;
|
|
case HW_RESET_REQ:
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
if (card->state != W_L1IND_DRD)
|
|
ph_command(card, W_L1CMD_RST);
|
|
ph_command(card, W_L1CMD_ECK);
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
break;
|
|
case HW_DEACT_REQ:
|
|
skb_queue_purge(&dch->squeue);
|
|
if (dch->tx_skb) {
|
|
dev_kfree_skb(dch->tx_skb);
|
|
dch->tx_skb = NULL;
|
|
}
|
|
dch->tx_idx = 0;
|
|
if (dch->rx_skb) {
|
|
dev_kfree_skb(dch->rx_skb);
|
|
dch->rx_skb = NULL;
|
|
}
|
|
test_and_clear_bit(FLG_TX_BUSY, &dch->Flags);
|
|
if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags))
|
|
del_timer(&dch->timer);
|
|
break;
|
|
case HW_POWERUP_REQ:
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
ph_command(card, W_L1CMD_ECK);
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
break;
|
|
case PH_ACTIVATE_IND:
|
|
test_and_set_bit(FLG_ACTIVE, &dch->Flags);
|
|
_queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
|
|
GFP_ATOMIC);
|
|
break;
|
|
case PH_DEACTIVATE_IND:
|
|
test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
|
|
_queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
|
|
GFP_ATOMIC);
|
|
break;
|
|
default:
|
|
pr_debug("%s: %s unknown command %x\n", card->name,
|
|
__func__, cmd);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
open_dchannel(struct w6692_hw *card, struct channel_req *rq, void *caller)
|
|
{
|
|
pr_debug("%s: %s dev(%d) open from %p\n", card->name, __func__,
|
|
card->dch.dev.id, caller);
|
|
if (rq->protocol != ISDN_P_TE_S0)
|
|
return -EINVAL;
|
|
if (rq->adr.channel == 1)
|
|
/* E-Channel not supported */
|
|
return -EINVAL;
|
|
rq->ch = &card->dch.dev.D;
|
|
rq->ch->protocol = rq->protocol;
|
|
if (card->dch.state == 7)
|
|
_queue_data(rq->ch, PH_ACTIVATE_IND, MISDN_ID_ANY,
|
|
0, NULL, GFP_KERNEL);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
w6692_dctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
|
|
{
|
|
struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
|
|
struct dchannel *dch = container_of(dev, struct dchannel, dev);
|
|
struct w6692_hw *card = container_of(dch, struct w6692_hw, dch);
|
|
struct channel_req *rq;
|
|
int err = 0;
|
|
|
|
pr_debug("%s: DCTRL: %x %p\n", card->name, cmd, arg);
|
|
switch (cmd) {
|
|
case OPEN_CHANNEL:
|
|
rq = arg;
|
|
if (rq->protocol == ISDN_P_TE_S0)
|
|
err = open_dchannel(card, rq, __builtin_return_address(0));
|
|
else
|
|
err = open_bchannel(card, rq);
|
|
if (err)
|
|
break;
|
|
if (!try_module_get(THIS_MODULE))
|
|
pr_info("%s: cannot get module\n", card->name);
|
|
break;
|
|
case CLOSE_CHANNEL:
|
|
pr_debug("%s: dev(%d) close from %p\n", card->name,
|
|
dch->dev.id, __builtin_return_address(0));
|
|
module_put(THIS_MODULE);
|
|
break;
|
|
case CONTROL_CHANNEL:
|
|
err = channel_ctrl(card, arg);
|
|
break;
|
|
default:
|
|
pr_debug("%s: unknown DCTRL command %x\n", card->name, cmd);
|
|
return -EINVAL;
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
setup_w6692(struct w6692_hw *card)
|
|
{
|
|
u32 val;
|
|
|
|
if (!request_region(card->addr, 256, card->name)) {
|
|
pr_info("%s: config port %x-%x already in use\n", card->name,
|
|
card->addr, card->addr + 255);
|
|
return -EIO;
|
|
}
|
|
W6692Version(card);
|
|
card->bc[0].addr = card->addr;
|
|
card->bc[1].addr = card->addr + 0x40;
|
|
val = ReadW6692(card, W_ISTA);
|
|
if (debug & DEBUG_HW)
|
|
pr_notice("%s ISTA=%02x\n", card->name, val);
|
|
val = ReadW6692(card, W_IMASK);
|
|
if (debug & DEBUG_HW)
|
|
pr_notice("%s IMASK=%02x\n", card->name, val);
|
|
val = ReadW6692(card, W_D_EXIR);
|
|
if (debug & DEBUG_HW)
|
|
pr_notice("%s D_EXIR=%02x\n", card->name, val);
|
|
val = ReadW6692(card, W_D_EXIM);
|
|
if (debug & DEBUG_HW)
|
|
pr_notice("%s D_EXIM=%02x\n", card->name, val);
|
|
val = ReadW6692(card, W_D_RSTA);
|
|
if (debug & DEBUG_HW)
|
|
pr_notice("%s D_RSTA=%02x\n", card->name, val);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
release_card(struct w6692_hw *card)
|
|
{
|
|
u_long flags;
|
|
|
|
spin_lock_irqsave(&card->lock, flags);
|
|
disable_hwirq(card);
|
|
w6692_mode(&card->bc[0], ISDN_P_NONE);
|
|
w6692_mode(&card->bc[1], ISDN_P_NONE);
|
|
if ((card->fmask & led) || card->subtype == W6692_USR) {
|
|
card->xdata |= 0x04; /* LED OFF */
|
|
WriteW6692(card, W_XDATA, card->xdata);
|
|
}
|
|
spin_unlock_irqrestore(&card->lock, flags);
|
|
free_irq(card->irq, card);
|
|
l1_event(card->dch.l1, CLOSE_CHANNEL);
|
|
mISDN_unregister_device(&card->dch.dev);
|
|
release_region(card->addr, 256);
|
|
mISDN_freebchannel(&card->bc[1].bch);
|
|
mISDN_freebchannel(&card->bc[0].bch);
|
|
mISDN_freedchannel(&card->dch);
|
|
write_lock_irqsave(&card_lock, flags);
|
|
list_del(&card->list);
|
|
write_unlock_irqrestore(&card_lock, flags);
|
|
pci_disable_device(card->pdev);
|
|
pci_set_drvdata(card->pdev, NULL);
|
|
kfree(card);
|
|
}
|
|
|
|
static int
|
|
setup_instance(struct w6692_hw *card)
|
|
{
|
|
int i, err;
|
|
u_long flags;
|
|
|
|
snprintf(card->name, MISDN_MAX_IDLEN - 1, "w6692.%d", w6692_cnt + 1);
|
|
write_lock_irqsave(&card_lock, flags);
|
|
list_add_tail(&card->list, &Cards);
|
|
write_unlock_irqrestore(&card_lock, flags);
|
|
card->fmask = (1 << w6692_cnt);
|
|
_set_debug(card);
|
|
spin_lock_init(&card->lock);
|
|
mISDN_initdchannel(&card->dch, MAX_DFRAME_LEN_L1, W6692_ph_bh);
|
|
card->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0);
|
|
card->dch.dev.D.send = w6692_l2l1D;
|
|
card->dch.dev.D.ctrl = w6692_dctrl;
|
|
card->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
|
|
(1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK));
|
|
card->dch.hw = card;
|
|
card->dch.dev.nrbchan = 2;
|
|
for (i = 0; i < 2; i++) {
|
|
mISDN_initbchannel(&card->bc[i].bch, MAX_DATA_MEM,
|
|
W_B_FIFO_THRESH);
|
|
card->bc[i].bch.hw = card;
|
|
card->bc[i].bch.nr = i + 1;
|
|
card->bc[i].bch.ch.nr = i + 1;
|
|
card->bc[i].bch.ch.send = w6692_l2l1B;
|
|
card->bc[i].bch.ch.ctrl = w6692_bctrl;
|
|
set_channelmap(i + 1, card->dch.dev.channelmap);
|
|
list_add(&card->bc[i].bch.ch.list, &card->dch.dev.bchannels);
|
|
}
|
|
err = setup_w6692(card);
|
|
if (err)
|
|
goto error_setup;
|
|
err = mISDN_register_device(&card->dch.dev, &card->pdev->dev,
|
|
card->name);
|
|
if (err)
|
|
goto error_reg;
|
|
err = init_card(card);
|
|
if (err)
|
|
goto error_init;
|
|
err = create_l1(&card->dch, w6692_l1callback);
|
|
if (!err) {
|
|
w6692_cnt++;
|
|
pr_notice("W6692 %d cards installed\n", w6692_cnt);
|
|
return 0;
|
|
}
|
|
|
|
free_irq(card->irq, card);
|
|
error_init:
|
|
mISDN_unregister_device(&card->dch.dev);
|
|
error_reg:
|
|
release_region(card->addr, 256);
|
|
error_setup:
|
|
mISDN_freebchannel(&card->bc[1].bch);
|
|
mISDN_freebchannel(&card->bc[0].bch);
|
|
mISDN_freedchannel(&card->dch);
|
|
write_lock_irqsave(&card_lock, flags);
|
|
list_del(&card->list);
|
|
write_unlock_irqrestore(&card_lock, flags);
|
|
kfree(card);
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
w6692_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
|
|
{
|
|
int err = -ENOMEM;
|
|
struct w6692_hw *card;
|
|
struct w6692map *m = (struct w6692map *)ent->driver_data;
|
|
|
|
card = kzalloc(sizeof(struct w6692_hw), GFP_KERNEL);
|
|
if (!card) {
|
|
pr_info("No kmem for w6692 card\n");
|
|
return err;
|
|
}
|
|
card->pdev = pdev;
|
|
card->subtype = m->subtype;
|
|
err = pci_enable_device(pdev);
|
|
if (err) {
|
|
kfree(card);
|
|
return err;
|
|
}
|
|
|
|
printk(KERN_INFO "mISDN_w6692: found adapter %s at %s\n",
|
|
m->name, pci_name(pdev));
|
|
|
|
card->addr = pci_resource_start(pdev, 1);
|
|
card->irq = pdev->irq;
|
|
pci_set_drvdata(pdev, card);
|
|
err = setup_instance(card);
|
|
if (err)
|
|
pci_set_drvdata(pdev, NULL);
|
|
return err;
|
|
}
|
|
|
|
static void
|
|
w6692_remove_pci(struct pci_dev *pdev)
|
|
{
|
|
struct w6692_hw *card = pci_get_drvdata(pdev);
|
|
|
|
if (card)
|
|
release_card(card);
|
|
else
|
|
if (debug)
|
|
pr_notice("%s: drvdata already removed\n", __func__);
|
|
}
|
|
|
|
static struct pci_device_id w6692_ids[] = {
|
|
{ PCI_VENDOR_ID_DYNALINK, PCI_DEVICE_ID_DYNALINK_IS64PH,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, (ulong)&w6692_map[0]},
|
|
{ PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692,
|
|
PCI_VENDOR_ID_USR, PCI_DEVICE_ID_USR_6692, 0, 0,
|
|
(ulong)&w6692_map[2]},
|
|
{ PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, (ulong)&w6692_map[1]},
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, w6692_ids);
|
|
|
|
static struct pci_driver w6692_driver = {
|
|
.name = "w6692",
|
|
.probe = w6692_probe,
|
|
.remove = w6692_remove_pci,
|
|
.id_table = w6692_ids,
|
|
};
|
|
|
|
static int __init w6692_init(void)
|
|
{
|
|
int err;
|
|
|
|
pr_notice("Winbond W6692 PCI driver Rev. %s\n", W6692_REV);
|
|
|
|
err = pci_register_driver(&w6692_driver);
|
|
return err;
|
|
}
|
|
|
|
static void __exit w6692_cleanup(void)
|
|
{
|
|
pci_unregister_driver(&w6692_driver);
|
|
}
|
|
|
|
module_init(w6692_init);
|
|
module_exit(w6692_cleanup);
|