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1416 lines
35 KiB
1416 lines
35 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* w6692.c mISDN driver for Winbond w6692 based cards |
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* |
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* Author Karsten Keil <[email protected]> |
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* based on the w6692 I4L driver from Petr Novak <[email protected]> |
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* |
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* Copyright 2009 by Karsten Keil <[email protected]> |
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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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#define PCI_DEVICE_ID_USR_6692 0x3409 |
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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, const 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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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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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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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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|
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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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|
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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)) { |
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wch->bch.dropcnt += count; |
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WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT); |
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return; |
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} |
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maxlen = bchannel_get_rxbuf(&wch->bch, count); |
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if (maxlen < 0) { |
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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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pr_warn("%s.B%d: No bufferspace for %d bytes\n", |
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card->name, wch->bch.nr, count); |
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return; |
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} |
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ptr = skb_put(wch->bch.rx_skb, count); |
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insb(wch->addr + W_B_RFIFO, ptr, count); |
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WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT); |
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if (debug & DEBUG_HW_DFIFO) { |
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snprintf(card->log, 63, "B%1d-recv %s %d ", |
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wch->bch.nr, 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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|
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static void |
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W6692_fill_Bfifo(struct w6692_ch *wch) |
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{ |
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struct w6692_hw *card = wch->bch.hw; |
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int count, fillempty = 0; |
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u8 *ptr, cmd = W_B_CMDR_RACT | W_B_CMDR_XMS; |
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|
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pr_debug("%s: fill Bfifo\n", card->name); |
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if (!wch->bch.tx_skb) { |
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if (!test_bit(FLG_TX_EMPTY, &wch->bch.Flags)) |
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return; |
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ptr = wch->bch.fill; |
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count = W_B_FIFO_THRESH; |
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fillempty = 1; |
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} else { |
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count = wch->bch.tx_skb->len - wch->bch.tx_idx; |
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if (count <= 0) |
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return; |
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ptr = wch->bch.tx_skb->data + wch->bch.tx_idx; |
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} |
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if (count > W_B_FIFO_THRESH) |
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count = W_B_FIFO_THRESH; |
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else if (test_bit(FLG_HDLC, &wch->bch.Flags)) |
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cmd |= W_B_CMDR_XME; |
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|
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pr_debug("%s: fill Bfifo%d/%d\n", card->name, |
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count, wch->bch.tx_idx); |
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wch->bch.tx_idx += count; |
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if (fillempty) { |
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while (count > 0) { |
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outsb(wch->addr + W_B_XFIFO, ptr, MISDN_BCH_FILL_SIZE); |
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count -= MISDN_BCH_FILL_SIZE; |
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} |
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} else { |
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outsb(wch->addr + W_B_XFIFO, ptr, count); |
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} |
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WriteW6692B(wch, W_B_CMDR, cmd); |
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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 { |
|
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_warn("%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_warn("%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 timer_list *t) |
|
{ |
|
struct dchannel *dch = from_timer(dch, t, timer); |
|
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); |
|
} |
|
} |
|
|
|
static void initW6692(struct w6692_hw *card) |
|
{ |
|
u8 val; |
|
|
|
timer_setup(&card->dch.timer, dbusy_timer_handler, 0); |
|
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 const 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);
|
|
|