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openwrt/target/linux/generic-2.4/patches/201-hfc_usb_backport.patch
Gabor Juhos dfe741470a refresh generic-2.4 patches 
SVN-Revision: 11213
2008-05-19 13:44:11 +00:00

2666 lines
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Index: linux-2.4.35.4/drivers/Makefile
===================================================================
--- linux-2.4.35.4.orig/drivers/Makefile
+++ linux-2.4.35.4/drivers/Makefile
@@ -38,7 +38,7 @@ subdir-$(CONFIG_FUSION) += message/fusi
subdir-$(CONFIG_MD) += md
subdir-$(CONFIG_IEEE1394) += ieee1394
subdir-$(CONFIG_PNP) += pnp
-subdir-$(CONFIG_ISDN_BOOL) += isdn
+subdir-$(CONFIG_ISDN) += isdn
subdir-$(CONFIG_ATM) += atm
subdir-$(CONFIG_FC4) += fc4
Index: linux-2.4.35.4/drivers/isdn/hisax/hfc_usb.c
===================================================================
--- linux-2.4.35.4.orig/drivers/isdn/hisax/hfc_usb.c
+++ linux-2.4.35.4/drivers/isdn/hisax/hfc_usb.c
@@ -1,13 +1,11 @@
-/* $Id: hfc_usb.c,v 2.3 2001/07/06 21:30:11 werner Exp $
+/*
+ * hfc_usb.c
*
+ * modular HiSax ISDN driver for Colognechip HFC-USB chip
*
- *
- * Author (C) 2001 Werner Cornelius (werner@isdn-development.de)
- * modular driver for Colognechip HFC-USB chip
- * as plugin for HiSax isdn driver
- * type approval valid for HFC-S USB based TAs
- *
- * Copyright 2001 by Werner Cornelius (werner@isdn-development.de)
+ * Authors : Peter Sprenger (sprenger@moving-byters.de)
+ * Martin Bachem (info@colognechip.com)
+ * based on the first hfc_usb driver of Werner Cornelius (werner@isdn-development.de)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -23,70 +21,90 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
- */
+ * 2005_Mar_16 grsch
+ * ported 2.6.8 hfc_usb.c to 2.4.20 format
+ * Gregor Schaffrath <gschaff@ran-dom.org>
+*/
+
#include <linux/types.h>
#include <linux/stddef.h>
#include <linux/timer.h>
#include <linux/config.h>
-#include <linux/isdn_compat.h>
#include <linux/init.h>
#include "hisax.h"
#include <linux/module.h>
#include <linux/kernel_stat.h>
-#include <linux/tqueue.h>
#include <linux/usb.h>
#include <linux/kernel.h>
#include <linux/smp_lock.h>
#include <linux/sched.h>
+#include "hisax_if.h"
#include "hisax_loadable.h"
+static const char *hfcusb_revision = "4.0";
+
+/*
+ to enable much mire debug messages in this driver, define
+ VERBOSE_USB_DEBUG and VERBOSE_ISDN_DEBUG
+ below
+*/
+
+#define VERBOSE_USB_DEBUG
+#define VERBOSE_ISDN_DEBUG
+
#define INCLUDE_INLINE_FUNCS
+#define TRUE 1
+#define FALSE 0
+
+
/***********/
/* defines */
/***********/
-#define HFC_CTRL_TIMEOUT 5 /* 5ms timeout writing/reading regs */
-#define HFC_TIMER_T3 7000 /* timeout for l1 activation timer */
-
-#define HFCUSB_L1_STATECHANGE 0 /* L1 state changed */
-#define HFCUSB_L1_DRX 1 /* D-frame received */
-#define HFCUSB_L1_ERX 2 /* E-frame received */
-#define HFCUSB_L1_DTX 4 /* D-frames completed */
-
-#define MAX_BCH_SIZE 2048 /* allowed B-channel packet size */
-
-#define HFCUSB_RX_THRESHOLD 64 /* threshold for fifo report bit rx */
-#define HFCUSB_TX_THRESHOLD 64 /* threshold for fifo report bit tx */
-
-#define HFCUSB_CHIP_ID 0x16 /* Chip ID register index */
-#define HFCUSB_CIRM 0x00 /* cirm register index */
-#define HFCUSB_USB_SIZE 0x07 /* int length register */
-#define HFCUSB_USB_SIZE_I 0x06 /* iso length register */
-#define HFCUSB_F_CROSS 0x0b /* bit order register */
-#define HFCUSB_CLKDEL 0x37 /* bit delay register */
-#define HFCUSB_CON_HDLC 0xfa /* channel connect register */
+#define HFC_CTRL_TIMEOUT 20 //(HZ * USB_CTRL_GET_TIMEOUT)
+/* 5ms timeout writing/reading regs */
+#define HFC_TIMER_T3 8000 /* timeout for l1 activation timer */
+#define HFC_TIMER_T4 500 /* time for state change interval */
+
+#define HFCUSB_L1_STATECHANGE 0 /* L1 state changed */
+#define HFCUSB_L1_DRX 1 /* D-frame received */
+#define HFCUSB_L1_ERX 2 /* E-frame received */
+#define HFCUSB_L1_DTX 4 /* D-frames completed */
+
+#define MAX_BCH_SIZE 2048 /* allowed B-channel packet size */
+
+#define HFCUSB_RX_THRESHOLD 64 /* threshold for fifo report bit rx */
+#define HFCUSB_TX_THRESHOLD 64 /* threshold for fifo report bit tx */
+
+#define HFCUSB_CHIP_ID 0x16 /* Chip ID register index */
+#define HFCUSB_CIRM 0x00 /* cirm register index */
+#define HFCUSB_USB_SIZE 0x07 /* int length register */
+#define HFCUSB_USB_SIZE_I 0x06 /* iso length register */
+#define HFCUSB_F_CROSS 0x0b /* bit order register */
+#define HFCUSB_CLKDEL 0x37 /* bit delay register */
+#define HFCUSB_CON_HDLC 0xfa /* channel connect register */
#define HFCUSB_HDLC_PAR 0xfb
-#define HFCUSB_SCTRL 0x31 /* S-bus control register (tx) */
-#define HFCUSB_SCTRL_E 0x32 /* same for E and special funcs */
-#define HFCUSB_SCTRL_R 0x33 /* S-bus control register (rx) */
-#define HFCUSB_F_THRES 0x0c /* threshold register */
-#define HFCUSB_FIFO 0x0f /* fifo select register */
-#define HFCUSB_F_USAGE 0x1a /* fifo usage register */
+#define HFCUSB_SCTRL 0x31 /* S-bus control register (tx) */
+#define HFCUSB_SCTRL_E 0x32 /* same for E and special funcs */
+#define HFCUSB_SCTRL_R 0x33 /* S-bus control register (rx) */
+#define HFCUSB_F_THRES 0x0c /* threshold register */
+#define HFCUSB_FIFO 0x0f /* fifo select register */
+#define HFCUSB_F_USAGE 0x1a /* fifo usage register */
#define HFCUSB_MST_MODE0 0x14
#define HFCUSB_MST_MODE1 0x15
#define HFCUSB_P_DATA 0x1f
#define HFCUSB_INC_RES_F 0x0e
#define HFCUSB_STATES 0x30
-#define HFCUSB_CHIPID 0x40 /* ID value of HFC-USB */
+#define HFCUSB_CHIPID 0x40 /* ID value of HFC-USB */
/******************/
/* fifo registers */
/******************/
-#define HFCUSB_NUM_FIFOS 8 /* maximum number of fifos */
-#define HFCUSB_B1_TX 0 /* index for B1 transmit bulk/int */
-#define HFCUSB_B1_RX 1 /* index for B1 receive bulk/int */
+#define HFCUSB_NUM_FIFOS 8 /* maximum number of fifos */
+#define HFCUSB_B1_TX 0 /* index for B1 transmit bulk/int */
+#define HFCUSB_B1_RX 1 /* index for B1 receive bulk/int */
#define HFCUSB_B2_TX 2
#define HFCUSB_B2_RX 3
#define HFCUSB_D_TX 4
@@ -94,198 +112,162 @@
#define HFCUSB_PCM_TX 6
#define HFCUSB_PCM_RX 7
-/************/
-/* LED mask */
-/************/
-#define LED_DRIVER 0x1
-#define LED_L1 0x2
-#define LED_BCH 0x4
+/*
+* used to switch snd_transfer_mode for different TA modes e.g. the Billion USB TA just
+* supports ISO out, while the Cologne Chip EVAL TA just supports BULK out
+*/
+#define USB_INT 0
+#define USB_BULK 1
+#define USB_ISOC 2
+
+#define ISOC_PACKETS_D 8
+#define ISOC_PACKETS_B 8
+#define ISO_BUFFER_SIZE 128
+
+// ISO send definitions
+#define SINK_MAX 68
+#define SINK_MIN 48
+#define SINK_DMIN 12
+#define SINK_DMAX 18
+#define BITLINE_INF (-64*8)
+
+
+
/**********/
/* macros */
/**********/
-#define Write_hfc(a,b,c) usb_control_msg((a)->dev,(a)->ctrl_out_pipe,0,0x40,(c),(b),0,0,HFC_CTRL_TIMEOUT)
-#define Read_hfc(a,b,c) usb_control_msg((a)->dev,(a)->ctrl_in_pipe,1,0xC0,0,(b),(c),1,HFC_CTRL_TIMEOUT)
-
-#ifdef COMPAT_HAS_USB_IDTAB
-/****************************************/
-/* data defining the devices to be used */
-/****************************************/
-static __devinitdata const struct usb_device_id hfc_usb_idtab[3] = {
- {USB_DEVICE(0x959, 0x2bd0)}, /* Colognechip ROM */
- {USB_DEVICE(0x7b0, 0x0006)}, /* USB TA 128 */
- {} /* end with an all-zeroes entry */
-};
-#endif
+#define write_usb(a,b,c) usb_control_msg((a)->dev,(a)->ctrl_out_pipe,0,0x40,(c),(b),NULL,0,HFC_CTRL_TIMEOUT)
+#define read_usb(a,b,c) usb_control_msg((a)->dev,(a)->ctrl_in_pipe,1,0xC0,0,(b),(c),1,HFC_CTRL_TIMEOUT)
/*************************************************/
/* entry and size of output/input control buffer */
/*************************************************/
#define HFC_CTRL_BUFSIZE 32
-typedef struct {
+typedef struct
+{
__u8 hfc_reg; /* register number */
__u8 reg_val; /* value to be written (or read) */
+ int action; /* data for action handler */
+
} ctrl_buft;
+typedef struct
+{
+ int vendor; // vendor id
+ int prod_id; // product id
+ char *vend_name; // vendor string
+ __u8 led_scheme; // led display scheme
+ __u8 led_invert; // invert led aux port settings
+ __u8 led_bits[8]; // array of 8 possible LED bitmask settings
+
+} vendor_data;
+
/***************************************************************/
/* structure defining input+output fifos (interrupt/bulk mode) */
/***************************************************************/
-struct hfcusb_data; /* forward definition */
-typedef struct {
- int fifonum; /* fifo index attached to this structure */
- __u8 fifo_mask; /* mask for this fifo */
- int active; /* fifo is currently active */
+
+struct usb_fifo; /* forward definition */
+typedef struct iso_urb_struct
+{
+ struct urb *purb;
+ __u8 buffer[ISO_BUFFER_SIZE]; /* buffer incoming/outgoing data */
+ struct usb_fifo *owner_fifo; // pointer to owner fifo
+} iso_urb_struct;
+
+
+struct hfcusb_data; /* forward definition */
+typedef struct usb_fifo
+{
+ int fifonum; /* fifo index attached to this structure */
+ int active; /* fifo is currently active */
struct hfcusb_data *hfc; /* pointer to main structure */
- int pipe; /* address of endpoint */
- __u8 usb_maxlen; /* maximum length for usb transfer */
- int max_size; /* maximum size of receive/send packet */
- int transmode; /* transparent mode selected */
- int framenum; /* number of frame when last tx completed */
- int rx_offset; /* offset inside rx buffer */
- int next_complete; /* complete marker */
- __u8 *act_ptr; /* pointer to next data */
- __u8 intervall; /* interrupt interval */
- struct sk_buff *buff; /* actual used buffer */
- urb_t urb; /* transfer structure for usb routines */
- __u8 buffer[128]; /* buffer incoming/outgoing data */
+ int pipe; /* address of endpoint */
+ __u8 usb_packet_maxlen; /* maximum length for usb transfer */
+ unsigned int max_size; /* maximum size of receive/send packet */
+ __u8 intervall; /* interrupt interval */
+ struct sk_buff *skbuff; /* actual used buffer */
+ struct urb *urb; /* transfer structure for usb routines */
+ __u8 buffer[128]; /* buffer incoming/outgoing data */
+ int bit_line; /* how much bits are in the fifo? */
+
+ volatile __u8 usb_transfer_mode;/* switched between ISO and INT */
+ iso_urb_struct iso[2]; /* need two urbs to have one always for pending */
+ struct hisax_if *hif; /* hisax interface */
+ int delete_flg; /* only delete skbuff once */
+ int last_urblen; /* remember length of last packet */
+
} usb_fifo;
+
/*********************************************/
/* structure holding all data for one device */
/*********************************************/
-typedef struct hfcusb_data {
- struct hisax_drvreg regd; /* register data and callbacks */
- struct usb_device *dev; /* our device */
- int if_used; /* used interface number */
- int alt_used; /* used alternate config */
- int ctrl_paksize; /* control pipe packet size */
+typedef struct hfcusb_data
+{
+ // HiSax Interface for loadable Layer1 drivers
+ struct hisax_d_if d_if; /* see hisax_if.h */
+ struct hisax_b_if b_if[2]; /* see hisax_if.h */
+ int protocol;
+
+ struct usb_device *dev; /* our device */
+ int if_used; /* used interface number */
+ int alt_used; /* used alternate config */
+ int ctrl_paksize; /* control pipe packet size */
int ctrl_in_pipe, ctrl_out_pipe; /* handles for control pipe */
+ int cfg_used; /* configuration index used */
+ int vend_idx; // vendor found
+
+ int b_mode[2]; // B-channel mode
+
+ int l1_activated; // layer 1 activated
+
+ int packet_size,iso_packet_size;
/* control pipe background handling */
ctrl_buft ctrl_buff[HFC_CTRL_BUFSIZE]; /* buffer holding queued data */
- volatile int ctrl_in_idx, ctrl_out_idx, ctrl_cnt; /* input/output pointer + count */
- urb_t ctrl_urb; /* transfer structure for control channel */
- devrequest ctrl_write; /* buffer for control write request */
- devrequest ctrl_read; /* same for read request */
-
- volatile __u8 dfifo_fill; /* value read from tx d-fifo */
- volatile __u8 active_fifos; /* fifos currently active as bit mask */
- volatile __u8 threshold_mask; /* threshold actually reported */
- volatile __u8 service_request; /* fifo needs service from task */
- volatile __u8 ctrl_fifo; /* last selected fifo */
- volatile __u8 bch_enables; /* or mask for sctrl_r and sctrl register values */
- volatile __u8 led_req; /* request status of adapters leds */
- volatile __u8 led_act; /* active status of adapters leds */
+ volatile int ctrl_in_idx, ctrl_out_idx,
+ ctrl_cnt; /* input/output pointer + count */
+ struct urb *ctrl_urb; /* transfer structure for control channel */
+
+ struct usb_ctrlrequest ctrl_write; /* buffer for control write request */
+ struct usb_ctrlrequest ctrl_read; /* same for read request */
+
+ __u8 led_state,led_new_data,led_b_active;
+
+ volatile __u8 threshold_mask; /* threshold actually reported */
+ volatile __u8 bch_enables; /* or mask for sctrl_r and sctrl register values */
+
usb_fifo fifos[HFCUSB_NUM_FIFOS]; /* structure holding all fifo data */
- /* layer 1 activation/deactivation handling */
- volatile __u8 l1_state; /* actual l1 state */
- volatile ulong l1_event; /* event mask */
- struct tq_struct l1_tq; /* l1 bh structure */
- struct timer_list t3_timer; /* timer for activation/deactivation */
- struct timer_list t4_timer; /* timer for activation/deactivation */
+ volatile __u8 l1_state; /* actual l1 state */
+ struct timer_list t3_timer; /* timer 3 for activation/deactivation */
+ struct timer_list t4_timer; /* timer 4 for activation/deactivation */
+ struct timer_list led_timer; /* timer flashing leds */
+
} hfcusb_data;
-#if 0
-static void
-usb_dump_urb(purb_t purb)
-{
- printk("urb :%p\n", purb);
- printk("next :%p\n", purb->next);
- printk("dev :%p\n", purb->dev);
- printk("pipe :%08X\n", purb->pipe);
- printk("status :%d\n", purb->status);
- printk("transfer_flags :%08X\n", purb->transfer_flags);
- printk("transfer_buffer :%p\n", purb->transfer_buffer);
- printk("transfer_buffer_length:%d\n",
- purb->transfer_buffer_length);
- printk("actual_length :%d\n", purb->actual_length);
- printk("setup_packet :%p\n", purb->setup_packet);
- printk("start_frame :%d\n", purb->start_frame);
- printk("number_of_packets :%d\n", purb->number_of_packets);
- printk("interval :%d\n", purb->interval);
- printk("error_count :%d\n", purb->error_count);
- printk("context :%p\n", purb->context);
- printk("complete :%p\n", purb->complete);
-}
-#endif
-/*************************************************************************/
-/* bottom half handler for L1 activation/deactiavtaion + D-chan + E-chan */
-/*************************************************************************/
-static void
-usb_l1d_bh(hfcusb_data * hfc)
-{
+static void collect_rx_frame(usb_fifo *fifo,__u8 *data,int len,int finish);
+
- while (hfc->l1_event) {
- if (test_and_clear_bit
- (HFCUSB_L1_STATECHANGE, &hfc->l1_event)) {
- if (hfc->l1_state == 7)
- hfc->led_req |= LED_L1;
- else
- hfc->led_req &= ~LED_L1;
- if ((hfc->l1_state == 7) ||
- (hfc->l1_state == 3))
- hfc->regd.dch_l1l2(hfc->regd.arg_hisax,
- (hfc->l1_state ==
- 7) ? (PH_ACTIVATE |
- INDICATION)
- : (PH_DEACTIVATE | INDICATION),
- NULL);
- }
- if (test_and_clear_bit(HFCUSB_L1_DRX, &hfc->l1_event)) {
- hfc->regd.dch_l1l2(hfc->regd.arg_hisax,
- PH_DATA | INDICATION,
- (void *) 0);
- }
- if (test_and_clear_bit(HFCUSB_L1_ERX, &hfc->l1_event)) {
- hfc->regd.dch_l1l2(hfc->regd.arg_hisax,
- PH_DATA | INDICATION,
- (void *) 1);
- }
- if (test_and_clear_bit(HFCUSB_L1_DTX, &hfc->l1_event)) {
- hfc->regd.dch_l1l2(hfc->regd.arg_hisax,
- PH_DATA | CONFIRM, NULL);
- }
- } /* while */
-} /* usb_l1d_bh */
/******************************************************/
/* start next background transfer for control channel */
/******************************************************/
-static void
-ctrl_start_transfer(hfcusb_data * hfc)
+static void ctrl_start_transfer(hfcusb_data * hfc)
{
-
- if (hfc->ctrl_cnt) {
- switch (hfc->ctrl_buff[hfc->ctrl_out_idx].hfc_reg) {
- case HFCUSB_F_USAGE:
- hfc->ctrl_urb.pipe = hfc->ctrl_in_pipe;
- hfc->ctrl_urb.setup_packet =
- (u_char *) & hfc->ctrl_read;
- hfc->ctrl_urb.transfer_buffer_length = 1;
- hfc->ctrl_read.index =
- hfc->ctrl_buff[hfc->ctrl_out_idx].
- hfc_reg;
- hfc->ctrl_urb.transfer_buffer =
- (char *) &hfc->dfifo_fill;
- break;
-
- default: /* write register */
- hfc->ctrl_urb.pipe = hfc->ctrl_out_pipe;
- hfc->ctrl_urb.setup_packet =
- (u_char *) & hfc->ctrl_write;
- hfc->ctrl_urb.transfer_buffer = NULL;
- hfc->ctrl_urb.transfer_buffer_length = 0;
- hfc->ctrl_write.index =
- hfc->ctrl_buff[hfc->ctrl_out_idx].
- hfc_reg;
- hfc->ctrl_write.value =
- hfc->ctrl_buff[hfc->ctrl_out_idx].
- reg_val;
- break;
- }
- usb_submit_urb(&hfc->ctrl_urb); /* start transfer */
+ int err;
+ if(hfc->ctrl_cnt)
+ {
+ hfc->ctrl_urb->pipe = hfc->ctrl_out_pipe;
+ hfc->ctrl_urb->setup_packet = (u_char *) & hfc->ctrl_write;
+ hfc->ctrl_urb->transfer_buffer = NULL;
+ hfc->ctrl_urb->transfer_buffer_length = 0;
+ hfc->ctrl_write.wIndex = hfc->ctrl_buff[hfc->ctrl_out_idx].hfc_reg;
+ hfc->ctrl_write.wValue = hfc->ctrl_buff[hfc->ctrl_out_idx].reg_val;
+ err = usb_submit_urb(hfc->ctrl_urb); /* start transfer */
+ printk(KERN_DEBUG "ctrl_start_transfer: submit %d\n", err);
}
} /* ctrl_start_transfer */
@@ -293,897 +275,1418 @@ ctrl_start_transfer(hfcusb_data * hfc)
/* queue a control transfer request */
/* return 0 on success. */
/************************************/
-static int
-queue_control_request(hfcusb_data * hfc, __u8 reg, __u8 val)
+static int queue_control_request(hfcusb_data * hfc, __u8 reg, __u8 val,int action)
{
ctrl_buft *buf;
- if (hfc->ctrl_cnt >= HFC_CTRL_BUFSIZE)
- return (1); /* no space left */
- buf = hfc->ctrl_buff + hfc->ctrl_in_idx; /* pointer to new index */
+#ifdef VERBOSE_USB_DEBUG
+ printk ("HFC_USB: queue_control_request reg: %x, val: %x\n", reg, val);
+#endif
+
+ if(hfc->ctrl_cnt >= HFC_CTRL_BUFSIZE) return(1); /* no space left */
+ buf = &hfc->ctrl_buff[hfc->ctrl_in_idx]; /* pointer to new index */
buf->hfc_reg = reg;
buf->reg_val = val;
+ buf->action=action;
if (++hfc->ctrl_in_idx >= HFC_CTRL_BUFSIZE)
hfc->ctrl_in_idx = 0; /* pointer wrap */
if (++hfc->ctrl_cnt == 1)
ctrl_start_transfer(hfc);
- return (0);
-} /* queue_control_request */
+ return(0);
+} /* queue_control_request */
-/**************************************/
-/* called when timer t3 or t4 expires */
-/**************************************/
-static void
-l1_timer_expire(hfcusb_data * hfc)
-{
- if (timer_pending(&hfc->t4_timer))
- del_timer(&hfc->t4_timer);
- queue_control_request(hfc, HFCUSB_STATES, 0x40);
- test_and_set_bit(HFCUSB_L1_STATECHANGE,
- &hfc->l1_event);
- queue_task(&hfc->l1_tq, &tq_immediate);
- mark_bh(IMMEDIATE_BH);
-} /* l1_timer_expire */
-
-/**************************************************/
-/* (re)fills a tx-fifo urb. Queuing is done later */
-/**************************************************/
-static void
-fill_tx_urb(usb_fifo * fifo)
-{
- struct sk_buff *skb;
- long flags;
- int i, ii = 0;
-
- fifo->urb.dev = fifo->hfc->dev;
- if ((fifo->buff)
- && (fifo->urb.transfer_buffer_length < fifo->usb_maxlen)) {
- switch (fifo->fifonum) {
- case HFCUSB_B1_TX:
- case HFCUSB_B2_TX:
- skb = fifo->buff;
- fifo->buff = NULL;
- fifo->hfc->regd.bch_l1l2(fifo->hfc->regd.
- arg_hisax,
- (fifo->fifonum ==
- HFCUSB_B1_TX) ? 0
- : 1,
- (PH_DATA |
- CONFIRM),
- (void *) skb);
- fifo->hfc->service_request |=
- fifo->fifo_mask;
- return;
- case HFCUSB_D_TX:
- dev_kfree_skb_any(fifo->buff);
- fifo->buff = NULL;
- save_flags(flags);
- cli();
- fifo->hfc->dfifo_fill = 0xff; /* currently invalid data */
- queue_control_request(fifo->hfc,
- HFCUSB_FIFO,
- HFCUSB_D_TX);
- queue_control_request(fifo->hfc,
- HFCUSB_F_USAGE, 0);
- restore_flags(flags);
- return;
- default:
- return; /* error, invalid fifo */
- }
+
+static int control_action_handler(hfcusb_data *hfc,int reg,int val,int action)
+{
+ if(!action) return(1); // no action defined
+
+ return(0);
+}
+
+
+/***************************************************************/
+/* control completion routine handling background control cmds */
+/***************************************************************/
+static void ctrl_complete(struct urb *urb)
+{
+ hfcusb_data *hfc = (hfcusb_data *) urb->context;
+ ctrl_buft *buf;
+
+ printk(KERN_DEBUG "ctrl_complete cnt %d\n", hfc->ctrl_cnt);
+ urb->dev = hfc->dev;
+ if(hfc->ctrl_cnt)
+ {
+ buf=&hfc->ctrl_buff[hfc->ctrl_out_idx];
+ control_action_handler(hfc,buf->hfc_reg,buf->reg_val,buf->action);
+
+ hfc->ctrl_cnt--; /* decrement actual count */
+ if(++hfc->ctrl_out_idx >= HFC_CTRL_BUFSIZE) hfc->ctrl_out_idx = 0; /* pointer wrap */
+
+ ctrl_start_transfer(hfc); /* start next transfer */
+ }
+} /* ctrl_complete */
+
+
+
+#define LED_OFF 0 // no LED support
+#define LED_SCHEME1 1 // LED standard scheme
+#define LED_SCHEME2 2 // not used yet...
+
+#define LED_POWER_ON 1
+#define LED_POWER_OFF 2
+#define LED_S0_ON 3
+#define LED_S0_OFF 4
+#define LED_B1_ON 5
+#define LED_B1_OFF 6
+#define LED_B1_DATA 7
+#define LED_B2_ON 8
+#define LED_B2_OFF 9
+#define LED_B2_DATA 10
+
+#define LED_NORMAL 0 // LEDs are normal
+#define LED_INVERTED 1 // LEDs are inverted
+
+// time for LED flashing
+#define LED_TIME 250
+
+vendor_data vdata[]=
+{
+ {0x959, 0x2bd0, "ISDN USB TA (Cologne Chip HFC-S USB based)", LED_OFF,LED_NORMAL,{4,0,2,1}}, /* CologneChip Eval TA */
+ {0x7b0, 0x0007, "Billion tiny USB ISDN TA 128", LED_SCHEME1, LED_INVERTED, {8,0x40,0x20,0x10}}, /* Billion TA */
+ {0x742, 0x2008, "Stollmann USB TA", LED_SCHEME1, LED_NORMAL, {4,0,2,1}}, /* Stollmann TA */
+ {0x8e3, 0x0301, "Olitec USB RNIS", LED_SCHEME1, LED_NORMAL, {2,0,1,4}}, /* Olitec TA */
+ {0x675, 0x1688, "DrayTec USB ISDN TA", LED_SCHEME1, LED_NORMAL, {4,0,2,1}}, /* Draytec TA */
+ {0x7fa, 0x0846, "Bewan Modem RNIS USB", LED_SCHEME1, LED_INVERTED, {8,0x40,0x20,0x10}}, /* Bewan TA */
+ {0} // EOL element
+};
+
+/***************************************************/
+/* write led data to auxport & invert if necessary */
+/***************************************************/
+static void write_led(hfcusb_data * hfc,__u8 led_state)
+{
+ if(led_state!=hfc->led_state)
+ {
+ hfc->led_state=led_state;
+ queue_control_request(hfc, HFCUSB_P_DATA,(vdata[hfc->vend_idx].led_invert) ? ~led_state : led_state,1);
+ }
+}
+
+/******************************************/
+/* invert B-channel LEDs if data is sent */
+/******************************************/
+static void led_timer(hfcusb_data * hfc)
+{
+ static int cnt=0;
+ __u8 led_state=hfc->led_state;
+
+ if(cnt)
+ {
+ if(hfc->led_b_active&1) led_state|=vdata[hfc->vend_idx].led_bits[2];
+ if(hfc->led_b_active&2) led_state|=vdata[hfc->vend_idx].led_bits[3];
+ }
+ else
+ {
+ if(!(hfc->led_b_active&1) || hfc->led_new_data&1) led_state&=~vdata[hfc->vend_idx].led_bits[2];
+ if(!(hfc->led_b_active&2) || hfc->led_new_data&2) led_state&=~vdata[hfc->vend_idx].led_bits[3];
}
- /* check if new buffer needed */
- if (!fifo->buff) {
- switch (fifo->fifonum) {
- case HFCUSB_B1_TX:
- if (fifo->hfc->regd.bsk[0])
- fifo->buff = *fifo->hfc->regd.bsk[0]; /* B1-channel tx buffer */
+ write_led(hfc,led_state);
+ hfc->led_new_data=0;
+
+ cnt=!cnt;
+ // restart 4 hz timer
+ hfc->led_timer.expires = jiffies + (LED_TIME * HZ) / 1000;
+ if(!timer_pending(&hfc->led_timer)) add_timer(&hfc->led_timer);
+}
+
+/**************************/
+/* handle LED requests */
+/**************************/
+static void handle_led(hfcusb_data * hfc,int event)
+{
+ __u8 led_state=hfc->led_state;
+
+ // if no scheme -> no LED action
+ if(vdata[hfc->vend_idx].led_scheme==LED_OFF) return;
+
+ switch(event)
+ {
+ case LED_POWER_ON:
+ led_state|=vdata[hfc->vend_idx].led_bits[0];
+ break;
+ case LED_POWER_OFF: // no Power off handling
+ break;
+ case LED_S0_ON:
+ led_state|=vdata[hfc->vend_idx].led_bits[1];
+ break;
+ case LED_S0_OFF:
+ led_state&=~vdata[hfc->vend_idx].led_bits[1];
break;
- case HFCUSB_B2_TX:
- if (fifo->hfc->regd.bsk[1])
- fifo->buff = *fifo->hfc->regd.bsk[1]; /* B2-channel tx buffer */
+ case LED_B1_ON:
+ hfc->led_b_active|=1;
break;
- case HFCUSB_D_TX:
- if (fifo->hfc->regd.dsq)
- fifo->buff = skb_dequeue(fifo->hfc->regd.dsq); /* D-channel tx queue */
+ case LED_B1_OFF:
+ hfc->led_b_active&=~1;
break;
- default:
- return; /* error, invalid fifo */
+ case LED_B1_DATA:
+ hfc->led_new_data|=1;
+ break;
+ case LED_B2_ON:
+ hfc->led_b_active|=2;
+ break;
+ case LED_B2_OFF:
+ hfc->led_b_active&=~2;
+ break;
+ case LED_B2_DATA:
+ hfc->led_new_data|=2;
+ break;
+ }
+
+ write_led(hfc,led_state);
+}
+
+/********************************/
+/* called when timer t3 expires */
+/********************************/
+static void l1_timer_expire_t3(hfcusb_data * hfc)
+{
+ //printk (KERN_INFO "HFC-USB: l1_timer_expire_t3\n");
+
+ hfc->d_if.ifc.l1l2(&hfc->d_if.ifc,PH_DEACTIVATE | INDICATION,NULL);
+#ifdef VERBOSE_USB_DEBUG
+ printk(KERN_INFO "PH_DEACTIVATE | INDICATION sent\n");
+#endif
+ hfc->l1_activated=FALSE;
+ handle_led(hfc,LED_S0_OFF);
+}
+
+/********************************/
+/* called when timer t4 expires */
+/********************************/
+static void l1_timer_expire_t4(hfcusb_data * hfc)
+{
+ //printk (KERN_INFO "HFC-USB: l1_timer_expire_t4\n");
+
+ hfc->d_if.ifc.l1l2(&hfc->d_if.ifc,PH_DEACTIVATE | INDICATION,NULL);
+#ifdef VERBOSE_USB_DEBUG
+ printk(KERN_INFO "PH_DEACTIVATE | INDICATION sent\n");
+#endif
+ hfc->l1_activated=FALSE;
+ handle_led(hfc,LED_S0_OFF);
+}
+
+/*****************************/
+/* handle S0 state changes */
+/*****************************/
+static void state_handler(hfcusb_data * hfc,__u8 state)
+{
+ __u8 old_state;
+
+ old_state=hfc->l1_state;
+
+ // range check
+ if(state==old_state || state<1 || state>8) return;
+
+#ifdef VERBOSE_ISDN_DEBUG
+ printk(KERN_INFO "HFC-USB: new S0 state:%d old_state:%d\n",state,old_state);
+#endif
+
+ if(state<4 || state==7 || state==8)
+ {
+ if(timer_pending(&hfc->t3_timer)) del_timer(&hfc->t3_timer);
+ //printk(KERN_INFO "HFC-USB: T3 deactivated\n");
+ }
+
+ if(state>=7)
+ {
+ if(timer_pending(&hfc->t4_timer)) del_timer(&hfc->t4_timer);
+ //printk(KERN_INFO "HFC-USB: T4 deactivated\n");
+ }
+
+ if(state==7 && !hfc->l1_activated)
+ {
+ hfc->d_if.ifc.l1l2(&hfc->d_if.ifc,PH_ACTIVATE | INDICATION,NULL);
+ //printk(KERN_INFO "HFC-USB: PH_ACTIVATE | INDICATION sent\n");
+ hfc->l1_activated=TRUE;
+ handle_led(hfc,LED_S0_ON);
+ }
+ else
+ if(state<=3 /* && activated*/)
+ {
+ if(old_state==7 || old_state==8)
+ {
+ //printk(KERN_INFO "HFC-USB: T4 activated\n");
+ hfc->t4_timer.expires = jiffies + (HFC_TIMER_T4 * HZ) / 1000;
+ if(!timer_pending(&hfc->t4_timer)) add_timer(&hfc->t4_timer);
}
- if (!fifo->buff) {
- fifo->active = 0; /* we are inactive now */
- fifo->hfc->active_fifos &= ~fifo->fifo_mask;
- if (fifo->fifonum == HFCUSB_D_TX) {
- test_and_set_bit(HFCUSB_L1_DTX,
- &fifo->hfc->l1_event);
- queue_task(&fifo->hfc->l1_tq,
- &tq_immediate);
- mark_bh(IMMEDIATE_BH);
- }
- return;
+ else
+ {
+ hfc->d_if.ifc.l1l2(&hfc->d_if.ifc,PH_DEACTIVATE | INDICATION,NULL);
+ //printk(KERN_INFO "HFC-USB: PH_DEACTIVATE | INDICATION sent\n");
+ hfc->l1_activated=FALSE;
+ handle_led(hfc,LED_S0_OFF);
}
- fifo->act_ptr = fifo->buff->data; /* start of data */
- fifo->active = 1;
- ii = 1;
- fifo->hfc->active_fifos |= fifo->fifo_mask;
- fifo->hfc->service_request &= ~fifo->fifo_mask;
- }
- /* fillup the send buffer */
- i = fifo->buff->len - (fifo->act_ptr - fifo->buff->data); /* remaining length */
- fifo->buffer[0] = !fifo->transmode; /* not eof */
- if (i > (fifo->usb_maxlen - ii)) {
- i = fifo->usb_maxlen - ii;
- }
- if (i)
- memcpy(fifo->buffer + ii, fifo->act_ptr, i);
- fifo->urb.transfer_buffer_length = i + ii;
- fifo->rx_offset = ii;
-} /* fill_tx_urb */
-
-/************************************************/
-/* transmit completion routine for all tx fifos */
-/************************************************/
-static void
-tx_complete(purb_t urb)
+ }
+
+ hfc->l1_state=state;
+}
+
+
+/* prepare iso urb */
+static void fill_isoc_urb(struct urb *urb, struct usb_device *dev, unsigned int pipe, void *buf,
+ int num_packets, int packet_size, int interval, usb_complete_t complete, void *context)
{
- usb_fifo *fifo = (usb_fifo *) urb->context; /* pointer to our fifo */
+ int k;
- fifo->hfc->service_request &= ~fifo->fifo_mask; /* no further handling */
- fifo->framenum = usb_get_current_frame_number(fifo->hfc->dev);
+ spin_lock_init(&urb->lock); // do we really need spin_lock_init ?
+ urb->dev = dev;
+ urb->pipe = pipe;
+ urb->complete = complete;
+ urb->number_of_packets = num_packets;
+ urb->transfer_buffer_length = packet_size * num_packets;
+ urb->context = context;
+ urb->transfer_buffer = buf;
+ urb->transfer_flags = 0;
+ urb->transfer_flags = USB_ISO_ASAP;
+ urb->actual_length = 0;
+ urb->interval = interval;
+ for (k = 0; k < num_packets; k++) {
+ urb->iso_frame_desc[k].offset = packet_size * k;
+ urb->iso_frame_desc[k].length = packet_size;
+ urb->iso_frame_desc[k].actual_length = 0;
+ }
+}
- /* check for deactivation or error */
- if ((!fifo->active) || (urb->status)) {
- fifo->hfc->active_fifos &= ~fifo->fifo_mask; /* we are inactive */
- fifo->active = 0;
- if ((fifo->buff) && (fifo->fifonum == HFCUSB_D_TX)) {
- dev_kfree_skb_any(fifo->buff);
+/* allocs urbs and start isoc transfer with two pending urbs to avoid gaps in the transfer chain */
+static int start_isoc_chain(usb_fifo * fifo, int num_packets_per_urb,usb_complete_t complete,int packet_size)
+{
+ int i, k, errcode;
+
+#ifdef VERBOSE_USB_DEBUG
+ printk(KERN_INFO "HFC-USB: starting ISO-chain for Fifo %i\n", fifo->fifonum);
+#endif
+
+
+ // allocate Memory for Iso out Urbs
+ for (i = 0; i < 2; i++) {
+ if (!(fifo->iso[i].purb)) {
+ fifo->iso[i].purb = usb_alloc_urb(num_packets_per_urb);
+ fifo->iso[i].owner_fifo = (struct usb_fifo *) fifo;
+
+ // Init the first iso
+ if (ISO_BUFFER_SIZE >= (fifo->usb_packet_maxlen * num_packets_per_urb))
+ {
+
+ fill_isoc_urb(fifo->iso[i].purb, fifo->hfc->dev, fifo->pipe, fifo->iso[i].buffer,
+ num_packets_per_urb, fifo->usb_packet_maxlen, fifo->intervall,
+ complete, &fifo->iso[i]);
+
+ memset(fifo->iso[i].buffer, 0, sizeof(fifo->iso[i].buffer));
+
+ // defining packet delimeters in fifo->buffer
+ for(k = 0; k < num_packets_per_urb; k++)
+ {
+ fifo->iso[i].purb->iso_frame_desc[k].offset = k*packet_size;
+ fifo->iso[i].purb->iso_frame_desc[k].length = packet_size;
+ }
+ }
}
- fifo->buff = NULL;
- return;
+
+ fifo->bit_line = BITLINE_INF;
+
+ errcode = usb_submit_urb(fifo->iso[i].purb);
+ fifo->active = (errcode >= 0) ? 1 : 0;
+ if(errcode < 0)
+ {
+ printk(KERN_INFO "HFC-USB: error submitting ISO URB: %i.%i \n", errcode, i);
+ };
+
}
- fifo->act_ptr += (urb->transfer_buffer_length - fifo->rx_offset); /* adjust pointer */
- fill_tx_urb(fifo); /* refill the urb */
- fifo->hfc->threshold_mask |= fifo->fifo_mask; /* assume threshold reached */
- if (fifo->buff)
- fifo->hfc->service_request |= fifo->fifo_mask; /* need to restart */
-} /* tx_complete */
-/***********************************************/
-/* receive completion routine for all rx fifos */
-/***********************************************/
-static void
-rx_complete(purb_t urb)
+ // errcode = (usb_submit_urb(fifo->iso[0].purb, GFP_KERNEL));
+ return(fifo->active);
+}
+
+/* stops running iso chain and frees their pending urbs */
+static void stop_isoc_chain(usb_fifo * fifo)
{
- usb_fifo *fifo = (usb_fifo *) urb->context; /* pointer to our fifo */
- hfcusb_data *hfc = fifo->hfc;
- usb_fifo *txfifo;
- __u8 last_state;
- int i, ii, currcnt, hdlci;
- struct sk_buff *skb;
-
- urb->dev = hfc->dev; /* security init */
- if ((!fifo->active) || (urb->status)) {
- hfc->service_request &= ~fifo->fifo_mask; /* no further handling */
- hfc->active_fifos &= ~fifo->fifo_mask; /* we are inactive */
- fifo->urb.interval = 0; /* cancel automatic rescheduling */
- if (fifo->buff) {
- dev_kfree_skb_any(fifo->buff);
- fifo->buff = NULL;
+ int i;
+
+ for(i = 0; i < 2; i++)
+ {
+ if(fifo->iso[i].purb)
+ {
+#ifdef VERBOSE_USB_DEBUG
+ printk(KERN_INFO "HFC-USB: Stopping iso chain for fifo %i.%i\n", fifo->fifonum, i);
+#endif
+ usb_unlink_urb(fifo->iso[i].purb);
+ usb_free_urb(fifo->iso[i].purb);
+ fifo->iso[i].purb = NULL;
}
- return;
}
+ if (fifo->urb) {
+ usb_unlink_urb(fifo->urb);
+ usb_free_urb(fifo->urb);
+ fifo->urb = NULL;
+ }
+ fifo->active = 0;
+}
- /* first check for any status changes */
- if ((urb->actual_length < fifo->rx_offset)
- || (urb->actual_length > fifo->usb_maxlen))
- return; /* error condition */
-
- if (fifo->rx_offset) {
- hfc->threshold_mask = fifo->buffer[1]; /* update threshold status */
- fifo->next_complete = fifo->buffer[0] & 1;
- if ((fifo->fifonum == HFCUSB_D_RX) &&
- (hfc->led_req != hfc->led_act))
- queue_control_request(hfc, HFCUSB_P_DATA, hfc->led_req);
-
- /* check if rescheduling needed */
- if ((i =
- hfc->service_request & hfc->active_fifos & ~hfc->
- threshold_mask)) {
- currcnt =
- usb_get_current_frame_number(hfc->dev);
- txfifo = hfc->fifos + HFCUSB_B1_TX;
- ii = 3;
- while (ii--) {
- if ((i & txfifo->fifo_mask)
- && (currcnt != txfifo->framenum)) {
- hfc->service_request &=
- ~txfifo->fifo_mask;
- if (!txfifo->buff)
- fill_tx_urb(txfifo);
- if (txfifo->buff)
- usb_submit_urb(&txfifo->
- urb);
+// defines how much ISO packets are handled in one URB
+static int iso_packets[8]={ISOC_PACKETS_B,ISOC_PACKETS_B,ISOC_PACKETS_B,ISOC_PACKETS_B,
+ ISOC_PACKETS_D,ISOC_PACKETS_D,ISOC_PACKETS_D,ISOC_PACKETS_D};
+
+/*****************************************************/
+/* transmit completion routine for all ISO tx fifos */
+/*****************************************************/
+static void tx_iso_complete(struct urb *urb)
+{
+ iso_urb_struct *context_iso_urb = (iso_urb_struct *) urb->context;
+ usb_fifo *fifo = context_iso_urb->owner_fifo;
+ hfcusb_data *hfc = fifo->hfc;
+ int k, tx_offset, num_isoc_packets, sink, len, current_len,errcode,frame_complete,transp_mode,fifon;
+ __u8 threshbit;
+ __u8 threshtable[8] = { 1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
+
+ fifon=fifo->fifonum;
+ tx_offset=0;
+ // very weird error code when using ohci drivers, for now : ignore this error ... (MB)
+ if(urb->status == -EOVERFLOW)
+ {
+ urb->status = 0;
+#ifdef VERBOSE_USB_DEBUG
+ printk(KERN_INFO "HFC-USB: ignoring USB DATAOVERRUN for fifo %i \n",fifon);
+#endif
+ }
+
+ if(fifo->active && !urb->status)
+ {
+ transp_mode=0;
+ if(fifon<4 && hfc->b_mode[fifon/2]==L1_MODE_TRANS) transp_mode=TRUE;
+
+ threshbit = threshtable[fifon] & hfc->threshold_mask; // is threshold set for our channel?
+ num_isoc_packets=iso_packets[fifon];
+
+ if(fifon >= HFCUSB_D_TX)
+ {
+ sink = (threshbit) ? SINK_DMIN : SINK_DMAX; // how much bit go to the sink for D-channel?
+ }
+ else
+ {
+ sink = (threshbit) ? SINK_MIN : SINK_MAX; // how much bit go to the sink for B-channel?
+ }
+
+ // prepare ISO Urb
+ fill_isoc_urb(urb, fifo->hfc->dev, fifo->pipe,context_iso_urb->buffer, num_isoc_packets,
+ fifo->usb_packet_maxlen, fifo->intervall, tx_iso_complete, urb->context);
+ memset(context_iso_urb->buffer, 0, sizeof(context_iso_urb->buffer));
+
+ frame_complete=FALSE;
+
+ // Generate Iso Packets
+ for(k = 0; k < num_isoc_packets; ++k)
+ {
+ if(fifo->skbuff)
+ {
+ len = fifo->skbuff->len; // remaining length
+
+ fifo->bit_line -= sink; // we lower data margin every msec
+ current_len = (0 - fifo->bit_line) / 8;
+ if(current_len > 14) current_len = 14; // maximum 15 byte for every ISO packet makes our life easier
+ current_len = (len <= current_len) ? len : current_len;
+ fifo->bit_line += current_len * 8; // how much bit do we put on the line?
+
+ context_iso_urb->buffer[tx_offset] = 0;
+ if(current_len == len)
+ {
+ if(!transp_mode)
+ {
+ context_iso_urb->buffer[tx_offset] = 1; // here frame completion
+ fifo->bit_line += 32; // add 2 byte flags and 16bit CRC at end of ISDN frame
+ }
+ frame_complete = TRUE;
+ }
+
+ // copy bytes from buffer into ISO_URB
+ memcpy(context_iso_urb->buffer+tx_offset+1,fifo->skbuff->data,current_len);
+ skb_pull(fifo->skbuff,current_len);
+
+ // define packet delimeters within the URB buffer
+ urb->iso_frame_desc[k].offset = tx_offset;
+ urb->iso_frame_desc[k].length = current_len + 1;
+
+ tx_offset += (current_len + 1);
+ // printk(KERN_INFO "HFC-USB: fifonum:%d,%d bytes to send, %d bytes ISO packet,bitline:%d,sink:%d,threshbit:%d,threshmask:%x\n",fifon,len,current_len,fifo->bit_line,sink,threshbit,hfc->threshold_mask);
+ if(!transp_mode)
+ {
+ if(fifon==HFCUSB_B1_TX) handle_led(hfc,LED_B1_DATA);
+ if(fifon==HFCUSB_B2_TX) handle_led(hfc,LED_B2_DATA);
+ }
+ }
+ else
+ {
+ // we have no more data - generate 1 byte ISO packets
+ urb->iso_frame_desc[k].offset = tx_offset++;
+
+ urb->iso_frame_desc[k].length = 1;
+ fifo->bit_line -= sink; // we lower data margin every msec
+
+ if(fifo->bit_line < BITLINE_INF)
+ {
+ fifo->bit_line = BITLINE_INF;
+ //printk (KERN_INFO "HFC-USB: BITLINE_INF underrun\n");
}
- txfifo += 2;
}
- }
- /* handle l1 events */
- if ((fifo->buffer[0] >> 4) != hfc->l1_state) {
- last_state = hfc->l1_state;
- hfc->l1_state = fifo->buffer[0] >> 4; /* update status */
- if (timer_pending(&hfc->t4_timer))
- del_timer(&hfc->t4_timer);
- if (((hfc->l1_state == 3) &&
- ((last_state == 7) ||
- (last_state == 8))) ||
- ((timer_pending(&hfc->t3_timer) &&
- (hfc->l1_state == 8)))) {
- hfc->t4_timer.expires = jiffies + 2;
- add_timer(&hfc->t4_timer);
- } else {
- if (timer_pending(&hfc->t3_timer)
- && (hfc->l1_state == 7))
- del_timer(&hfc->t3_timer); /* no longer needed */
- test_and_set_bit(HFCUSB_L1_STATECHANGE,
- &hfc->l1_event);
- queue_task(&hfc->l1_tq, &tq_immediate);
- mark_bh(IMMEDIATE_BH);
+ if(frame_complete)
+ {
+ // delete the buffer only once, here or in hfc_usb_l2l1() in a PH_DATA|REQUEST
+ fifo->delete_flg=TRUE;
+
+ fifo->hif->l1l2(fifo->hif,PH_DATA|CONFIRM,(void*)fifo->skbuff->truesize);
+
+ if(fifo->skbuff && fifo->delete_flg)
+ {
+ dev_kfree_skb_any(fifo->skbuff);
+ //printk(KERN_INFO "HFC-USB: skbuff=NULL on fifo:%d\n",fifo->fifonum);
+ fifo->skbuff = NULL;
+ fifo->delete_flg=FALSE;
+ }
+
+ frame_complete=FALSE;
}
+ }
+
+ errcode = usb_submit_urb(urb);
+ if(errcode < 0)
+ {
+ printk(KERN_INFO "HFC-USB: error submitting ISO URB: %i \n", errcode);
+ }
+ }
+ else
+ {
+ if(urb->status)
+ {
+ printk(KERN_INFO "HFC-USB: tx_iso_complete : urb->status %i, fifonum %i\n", urb->status,fifon);
}
}
- /* check the length for data and move if present */
- if (fifo->next_complete || (urb->actual_length > fifo->rx_offset)) {
- i = fifo->buff->len + urb->actual_length - fifo->rx_offset; /* new total length */
- hdlci = (fifo->transmode) ? 0 : 3;
- if (i <= (fifo->max_size + hdlci)) {
- memcpy(fifo->act_ptr,
- fifo->buffer + fifo->rx_offset,
- urb->actual_length - fifo->rx_offset);
- fifo->act_ptr +=
- (urb->actual_length - fifo->rx_offset);
- fifo->buff->len +=
- (urb->actual_length - fifo->rx_offset);
- } else
- fifo->buff->len = fifo->max_size + 4; /* mark frame as to long */
- if (fifo->next_complete && (urb->actual_length < fifo->usb_maxlen)) {
- /* the frame is complete */
- fifo->next_complete = 0;
- if (((!*(fifo->act_ptr - 1)) || fifo->transmode) &&
- (fifo->buff->len >= (hdlci + 1))
- && (fifo->buff->len <=
- (fifo->max_size + hdlci)) &&
- ((skb = dev_alloc_skb(fifo->max_size + hdlci)) != NULL)) {
- fifo->buff->len -= hdlci; /* adjust size */
- switch (fifo->fifonum) {
- case HFCUSB_D_RX:
- skb_queue_tail(hfc->regd.
- drq,
- fifo->buff);
- test_and_set_bit
- (HFCUSB_L1_DRX,
- &hfc->l1_event);
- queue_task(&hfc->l1_tq,
- &tq_immediate);
- mark_bh(IMMEDIATE_BH);
- break;
+} /* tx_iso_complete */
- case HFCUSB_B1_RX:
- if (hfc->regd.brq[0]) {
- skb_queue_tail
- (hfc->regd.
- brq[0],
- fifo->buff);
- hfc->regd.
- bch_l1l2(hfc->
- regd.
- arg_hisax,
- 0,
- PH_DATA
- |
- INDICATION,
- (void *)
- fifo->
- buff);
- } else
- dev_kfree_skb_any
- (fifo->buff);
- break;
-
- case HFCUSB_B2_RX:
- if (hfc->regd.brq[1]) {
- skb_queue_tail
- (hfc->regd.
- brq[1],
- fifo->buff);
- hfc->regd.
- bch_l1l2(hfc->
- regd.
- arg_hisax,
- 1,
- PH_DATA
- |
- INDICATION,
- (void
- *)
- fifo->
- buff);
- } else
- dev_kfree_skb_any
- (fifo->buff);
- break;
+/*****************************************************/
+/* receive completion routine for all ISO tx fifos */
+/*****************************************************/
+static void rx_iso_complete(struct urb *urb)
+{
+ iso_urb_struct *context_iso_urb = (iso_urb_struct *) urb->context;
+ usb_fifo *fifo = context_iso_urb->owner_fifo;
+ hfcusb_data *hfc = fifo->hfc;
+ int k, len, errcode, offset, num_isoc_packets,fifon;
+ __u8 *buf;
- case HFCUSB_PCM_RX:
- skb_queue_tail(&hfc->regd.
- erq,
- fifo->buff);
- test_and_set_bit
- (HFCUSB_L1_ERX,
- &hfc->l1_event);
- queue_task(&hfc->l1_tq,
- &tq_immediate);
- mark_bh(IMMEDIATE_BH);
- break;
+ fifon=fifo->fifonum;
+ // very weird error code when using ohci drivers, for now : ignore this error ... (MB)
+ if(urb->status == -EOVERFLOW)
+ {
+ urb->status = 0;
+#ifdef VERBOSE_USB_DEBUG
+ printk(KERN_INFO "HFC-USB: ignoring USB DATAOVERRUN for fifo %i \n",fifon);
+#endif
+ }
- default:
- dev_kfree_skb_any(fifo->
- buff);
- break;
+ if(fifo->active && !urb->status)
+ {
+ num_isoc_packets=iso_packets[fifon];
+
+ // Generate D-Channel Iso Packets
+ for(k = 0; k < num_isoc_packets; ++k)
+ {
+ len=urb->iso_frame_desc[k].actual_length;
+ offset=urb->iso_frame_desc[k].offset;
+ buf=context_iso_urb->buffer+offset;
+
+ if(fifo->last_urblen!=fifo->usb_packet_maxlen)
+ {
+ // the threshold mask is in the 2nd status byte
+ hfc->threshold_mask=buf[1];
+ // the S0 state is in the upper half of the 1st status byte
+ state_handler(hfc,buf[0] >> 4);
+ // if we have more than the 2 status bytes -> collect data
+ if(len>2) collect_rx_frame(fifo,buf+2,len-2,buf[0]&1);
}
- fifo->buff = skb;
- }
- fifo->buff->len = 0; /* reset counter */
- fifo->act_ptr = fifo->buff->data; /* and pointer */
+ else collect_rx_frame(fifo,buf,len,0);
+
+ fifo->last_urblen=len;
+
+ }
+
+ // prepare ISO Urb
+ fill_isoc_urb(urb, fifo->hfc->dev, fifo->pipe,context_iso_urb->buffer, num_isoc_packets,
+ fifo->usb_packet_maxlen, fifo->intervall, rx_iso_complete, urb->context);
+
+ errcode = usb_submit_urb(urb);
+ if(errcode < 0)
+ {
+ printk(KERN_INFO "HFC-USB: error submitting ISO URB: %i \n", errcode);
+ }
+ }
+ else
+ {
+ if(urb->status)
+ {
+ printk(KERN_INFO "HFC-USB: rx_iso_complete : urb->status %i, fifonum %i\n", urb->status,fifon);
+ }
+ }
+} /* rx_iso_complete */
+
+
+/*****************************************************/
+/* collect data from interrupt or isochron in */
+/*****************************************************/
+static void collect_rx_frame(usb_fifo *fifo,__u8 *data,int len,int finish)
+{
+ hfcusb_data *hfc = fifo->hfc;
+ int transp_mode,fifon;
+
+ fifon=fifo->fifonum;
+ transp_mode=0;
+ if(fifon<4 && hfc->b_mode[fifon/2]==L1_MODE_TRANS) transp_mode=TRUE;
+
+ //printk(KERN_INFO "HFC-USB: got %d bytes finish:%d max_size:%d fifo:%d\n",len,finish,fifo->max_size,fifon);
+ if(!fifo->skbuff)
+ {
+ // allocate sk buffer
+ fifo->skbuff=dev_alloc_skb(fifo->max_size + 3);
+ if(!fifo->skbuff)
+ {
+ printk(KERN_INFO "HFC-USB: cannot allocate buffer (dev_alloc_skb) fifo:%d\n",fifon);
+ return;
+ }
+
+ }
+
+ if(len && fifo->skbuff->len+len<fifo->max_size)
+ {
+ memcpy(skb_put(fifo->skbuff,len),data,len);
+ }
+ else printk(KERN_INFO "HCF-USB: got frame exceeded fifo->max_size:%d\n",fifo->max_size);
+
+ // give transparent data up, when 128 byte are available
+ if(transp_mode && fifo->skbuff->len>=128)
+ {
+ fifo->hif->l1l2(fifo->hif,PH_DATA | INDICATION,fifo->skbuff);
+ fifo->skbuff = NULL; // buffer was freed from upper layer
+ return;
+ }
+
+ // we have a complete hdlc packet
+ if(finish)
+ {
+ if(!fifo->skbuff->data[fifo->skbuff->len-1])
+ {
+ skb_trim(fifo->skbuff,fifo->skbuff->len-3); // remove CRC & status
+
+ //printk(KERN_INFO "HFC-USB: got frame %d bytes on fifo:%d\n",fifo->skbuff->len,fifon);
+
+ if(fifon==HFCUSB_PCM_RX) fifo->hif->l1l2(fifo->hif,PH_DATA_E | INDICATION,fifo->skbuff);
+ else fifo->hif->l1l2(fifo->hif,PH_DATA | INDICATION,fifo->skbuff);
+
+ fifo->skbuff = NULL; // buffer was freed from upper layer
+ }
+ else
+ {
+ printk(KERN_INFO "HFC-USB: got frame %d bytes but CRC ERROR!!!\n",fifo->skbuff->len);
+
+ skb_trim(fifo->skbuff,0); // clear whole buffer
+ }
+ }
+
+ // LED flashing only in HDLC mode
+ if(!transp_mode)
+ {
+ if(fifon==HFCUSB_B1_RX) handle_led(hfc,LED_B1_DATA);
+ if(fifon==HFCUSB_B2_RX) handle_led(hfc,LED_B2_DATA);
+ }
+}
+
+/***********************************************/
+/* receive completion routine for all rx fifos */
+/***********************************************/
+static void rx_complete(struct urb *urb)
+{
+ int len;
+ __u8 *buf;
+ usb_fifo *fifo = (usb_fifo *) urb->context; /* pointer to our fifo */
+ hfcusb_data *hfc = fifo->hfc;
+
+ urb->dev = hfc->dev; /* security init */
+
+ if((!fifo->active) || (urb->status)) {
+#ifdef VERBOSE_USB_DEBUG
+ printk(KERN_INFO "HFC-USB: RX-Fifo %i is going down (%i)\n", fifo->fifonum, urb->status);
+#endif
+ fifo->urb->interval = 0; /* cancel automatic rescheduling */
+ if(fifo->skbuff) {
+ dev_kfree_skb_any(fifo->skbuff);
+ fifo->skbuff = NULL;
}
+ return;
}
- fifo->rx_offset = (urb->actual_length < fifo->usb_maxlen) ? 2 : 0;
-} /* rx_complete */
+
+ len=urb->actual_length;
+ buf=fifo->buffer;
+
+ if(fifo->last_urblen!=fifo->usb_packet_maxlen) {
+ // the threshold mask is in the 2nd status byte
+ hfc->threshold_mask=buf[1];
+ // the S0 state is in the upper half of the 1st status byte
+ state_handler(hfc,buf[0] >> 4);
+ // if we have more than the 2 status bytes -> collect data
+ if(len>2) collect_rx_frame(fifo,buf+2,urb->actual_length-2,buf[0]&1);
+ } else
+ collect_rx_frame(fifo,buf,urb->actual_length,0);
+
+ fifo->last_urblen=urb->actual_length;
+
+
+} /* rx_complete */
+
+
/***************************************************/
/* start the interrupt transfer for the given fifo */
/***************************************************/
-static void
-start_rx_fifo(usb_fifo * fifo)
+static void start_int_fifo(usb_fifo * fifo)
{
- if (fifo->buff)
- return; /* still active */
- if (!
- (fifo->buff =
- dev_alloc_skb(fifo->max_size + (fifo->transmode ? 0 : 3))))
- return;
- fifo->act_ptr = fifo->buff->data;
- FILL_INT_URB(&fifo->urb, fifo->hfc->dev, fifo->pipe, fifo->buffer,
- fifo->usb_maxlen, rx_complete, fifo, fifo->intervall);
- fifo->next_complete = 0;
- fifo->rx_offset = 2;
- fifo->active = 1; /* must be marked active */
- fifo->hfc->active_fifos |= fifo->fifo_mask;
- if (usb_submit_urb(&fifo->urb)) {
+ int errcode;
+
+#ifdef VERBOSE_USB_DEBUG
+ printk(KERN_INFO "HFC-USB: starting intr IN fifo:%d\n", fifo->fifonum);
+#endif
+ if (!fifo->urb) {
+ fifo->urb = usb_alloc_urb(0);
+ if (!fifo->urb)
+ return;
+ }
+ usb_fill_int_urb(fifo->urb, fifo->hfc->dev, fifo->pipe, fifo->buffer,
+ fifo->usb_packet_maxlen, rx_complete, fifo, fifo->intervall);
+ fifo->active = 1; /* must be marked active */
+ errcode = usb_submit_urb(fifo->urb);
+
+ if(errcode)
+ {
+ printk(KERN_INFO "HFC-USB: submit URB error(start_int_info): status:%i\n", errcode);
fifo->active = 0;
- fifo->hfc->active_fifos &= ~fifo->fifo_mask;
- dev_kfree_skb_any(fifo->buff);
- fifo->buff = NULL;
+ fifo->skbuff = NULL;
}
-} /* start_rx_fifo */
+} /* start_int_fifo */
-/***************************************************************/
-/* control completion routine handling background control cmds */
-/***************************************************************/
-static void
-ctrl_complete(purb_t urb)
+/*****************************/
+/* set the B-channel mode */
+/*****************************/
+static void set_hfcmode(hfcusb_data *hfc,int channel,int mode)
{
- hfcusb_data *hfc = (hfcusb_data *) urb->context;
+ __u8 val,idx_table[2]={0,2};
- urb->dev = hfc->dev;
- if (hfc->ctrl_cnt) {
- switch (hfc->ctrl_buff[hfc->ctrl_out_idx].hfc_reg) {
- case HFCUSB_FIFO:
- hfc->ctrl_fifo =
- hfc->ctrl_buff[hfc->ctrl_out_idx].
- reg_val;
- break;
- case HFCUSB_F_USAGE:
- if (!hfc->dfifo_fill) {
- fill_tx_urb(hfc->fifos +
- HFCUSB_D_TX);
- if (hfc->fifos[HFCUSB_D_TX].buff)
- usb_submit_urb(&hfc->
- fifos
- [HFCUSB_D_TX].
- urb);
- } else {
- queue_control_request(hfc,
- HFCUSB_FIFO,
- HFCUSB_D_TX);
- queue_control_request(hfc,
- HFCUSB_F_USAGE,
- 0);
- }
- break;
- case HFCUSB_SCTRL_R:
- switch (hfc->ctrl_fifo) {
- case HFCUSB_B1_RX:
- if (hfc->bch_enables & 1)
- start_rx_fifo(hfc->
- fifos
- +
- HFCUSB_B1_RX);
- break;
- case HFCUSB_B2_RX:
- if (hfc->bch_enables & 2)
- start_rx_fifo(hfc->
- fifos
- +
- HFCUSB_B2_RX);
- break;
- }
- if (hfc->bch_enables & 3)
- hfc->led_req |= LED_BCH;
- else
- hfc->led_req &= ~LED_BCH;
- break;
- case HFCUSB_P_DATA:
- hfc->led_act =
- hfc->ctrl_buff[hfc->ctrl_out_idx].
- reg_val;
- break;
- }
- hfc->ctrl_cnt--; /* decrement actual count */
- if (++hfc->ctrl_out_idx >= HFC_CTRL_BUFSIZE)
- hfc->ctrl_out_idx = 0; /* pointer wrap */
- ctrl_start_transfer(hfc); /* start next transfer */
+#ifdef VERBOSE_ISDN_DEBUG
+ printk (KERN_INFO "HFC-USB: setting channel %d to mode %d\n",channel,mode);
+#endif
+
+ hfc->b_mode[channel]=mode;
+
+ // setup CON_HDLC
+ val=0;
+ if(mode!=L1_MODE_NULL) val=8; // enable fifo?
+ if(mode==L1_MODE_TRANS) val|=2; // set transparent bit
+
+ queue_control_request(hfc,HFCUSB_FIFO,idx_table[channel],1); // set FIFO to transmit register
+ queue_control_request(hfc,HFCUSB_CON_HDLC,val,1);
+ queue_control_request(hfc,HFCUSB_INC_RES_F,2,1); // reset fifo
+
+ queue_control_request(hfc,HFCUSB_FIFO,idx_table[channel]+1,1); // set FIFO to receive register
+ queue_control_request(hfc,HFCUSB_CON_HDLC,val,1);
+ queue_control_request(hfc,HFCUSB_INC_RES_F,2,1); // reset fifo
+
+ val=0x40;
+ if(hfc->b_mode[0]) val|=1;
+ if(hfc->b_mode[1]) val|=2;
+ queue_control_request(hfc,HFCUSB_SCTRL,val,1);
+
+ val=0;
+ if(hfc->b_mode[0]) val|=1;
+ if(hfc->b_mode[1]) val|=2;
+ queue_control_request(hfc,HFCUSB_SCTRL_R,val,1);
+
+ if(mode==L1_MODE_NULL)
+ {
+ if(channel) handle_led(hfc,LED_B2_OFF);
+ else handle_led(hfc,LED_B1_OFF);
}
-} /* ctrl_complete */
+ else
+ {
+ if(channel) handle_led(hfc,LED_B2_ON);
+ else handle_led(hfc,LED_B1_ON);
+ }
+}
-/*****************************************/
-/* Layer 1 + D channel access from HiSax */
-/*****************************************/
-static void
-hfcusb_l1_access(void *drvarg, int pr, void *arg)
-{
- hfcusb_data *hfc = (hfcusb_data *) drvarg;
-
- switch (pr) {
- case (PH_DATA | REQUEST):
- case (PH_PULL | INDICATION):
- skb_queue_tail(hfc->regd.dsq,
- (struct sk_buff *) arg);
- if (!hfc->fifos[HFCUSB_D_TX].active
- && !hfc->dfifo_fill) {
- fill_tx_urb(hfc->fifos + HFCUSB_D_TX);
- hfc->active_fifos |=
- hfc->fifos[HFCUSB_D_TX].fifo_mask;
- usb_submit_urb(&hfc->fifos[HFCUSB_D_TX].
- urb);
- }
- break;
- case (PH_ACTIVATE | REQUEST):
- switch (hfc->l1_state) {
- case 6:
- case 8:
- hfc->regd.dch_l1l2(hfc->regd.arg_hisax,
- (PH_DEACTIVATE |
- INDICATION), NULL);
+/*
+ --------------------------------------------------------------------------------------
+ from here : hisax_if callback routines :
+ - void hfc_usb_d_l2l1(struct hisax_if *hisax_d_if, int pr, void *arg) {
- break;
- case 7:
- hfc->regd.dch_l1l2(hfc->regd.arg_hisax,
- (PH_ACTIVATE |
- INDICATION), NULL);
+ l1 to l2 routines :
+ - static void hfc_usb_l1l2(hfcusb_data * hfc)
- break;
- default:
- queue_control_request(hfc, HFCUSB_STATES, 0x60); /* start activation */
- hfc->t3_timer.expires =
- jiffies + (HFC_TIMER_T3 * HZ) / 1000;
- if (!timer_pending(&hfc->t3_timer))
- add_timer(&hfc->t3_timer);
- break;
- }
- break;
+*/
- case (PH_DEACTIVATE | REQUEST):
- queue_control_request(hfc, HFCUSB_STATES, 0x40); /* start deactivation */
- break;
- default:
- printk(KERN_INFO "unknown hfcusb l1_access 0x%x\n",
- pr);
- break;
- }
-} /* hfcusb_l1_access */
-
-/*******************************/
-/* B channel access from HiSax */
-/*******************************/
-static void
-hfcusb_bch_access(void *drvarg, int chan, int pr, void *arg)
-{
- hfcusb_data *hfc = (hfcusb_data *) drvarg;
- usb_fifo *fifo = hfc->fifos + (chan ? HFCUSB_B2_TX : HFCUSB_B1_TX);
- long flags;
-
- switch (pr) {
- case (PH_DATA | REQUEST):
- case (PH_PULL | INDICATION):
- save_flags(flags);
- cli();
- if (!fifo->active) {
- fill_tx_urb(fifo);
- hfc->active_fifos |= fifo->fifo_mask;
- usb_submit_urb(&fifo->urb);
- }
- restore_flags(flags);
- break;
- case (PH_ACTIVATE | REQUEST):
- if (!((int) arg)) {
- hfc->bch_enables &= ~(1 << chan);
- if (fifo->active) {
- fifo->active = 0;
- usb_unlink_urb(&fifo->urb);
+void hfc_usb_l2l1(struct hisax_if *my_hisax_if, int pr, void *arg)
+{
+ usb_fifo *fifo = my_hisax_if->priv;
+ hfcusb_data *hfc = fifo->hfc;
+
+ switch (pr) {
+ case PH_ACTIVATE | REQUEST:
+ if(fifo->fifonum==HFCUSB_D_TX)
+ {
+#ifdef VERBOSE_ISDN_DEBUG
+ printk (KERN_INFO "HFC_USB: hfc_usb_d_l2l1 D-chan: PH_ACTIVATE | REQUEST\n");
+#endif
+ queue_control_request(hfc, HFCUSB_STATES,0x60,1); /* make activation */
+ hfc->t3_timer.expires = jiffies + (HFC_TIMER_T3 * HZ) / 1000;
+ if(!timer_pending(&hfc->t3_timer)) add_timer(&hfc->t3_timer);
}
- save_flags(flags);
- cli();
- queue_control_request(hfc, HFCUSB_FIFO,
- fifo->fifonum);
- queue_control_request(hfc,
- HFCUSB_INC_RES_F, 2);
- queue_control_request(hfc, HFCUSB_CON_HDLC,
- 9);
- queue_control_request(hfc, HFCUSB_SCTRL,
- 0x40 +
- hfc->bch_enables);
- queue_control_request(hfc, HFCUSB_SCTRL_R,
- hfc->bch_enables);
- restore_flags(flags);
- fifo++;
- if (fifo->active) {
- fifo->active = 0;
- usb_unlink_urb(&fifo->urb);
+ else
+ {
+#ifdef VERBOSE_ISDN_DEBUG
+ printk (KERN_INFO "HFC_USB: hfc_usb_d_l2l1 Bx-chan: PH_ACTIVATE | REQUEST\n");
+#endif
+ set_hfcmode(hfc,(fifo->fifonum==HFCUSB_B1_TX) ? 0 : 1 ,(int)arg);
+ fifo->hif->l1l2(fifo->hif,PH_ACTIVATE | INDICATION, NULL);
}
- return; /* fifo deactivated */
- }
- fifo->transmode = ((int) arg == L1_MODE_TRANS);
- fifo->max_size =
- ((fifo->transmode) ? fifo->
- usb_maxlen : MAX_BCH_SIZE);
- (fifo + 1)->transmode = fifo->transmode;
- (fifo + 1)->max_size = fifo->max_size;
- hfc->bch_enables |= (1 << chan);
- save_flags(flags);
- cli();
- queue_control_request(hfc, HFCUSB_FIFO,
- fifo->fifonum);
- queue_control_request(hfc, HFCUSB_CON_HDLC,
- ((!fifo->
- transmode) ? 9 : 11));
- queue_control_request(hfc, HFCUSB_INC_RES_F, 2);
- queue_control_request(hfc, HFCUSB_SCTRL,
- 0x40 + hfc->bch_enables);
- if ((int) arg == L1_MODE_HDLC)
- queue_control_request(hfc, HFCUSB_CON_HDLC,
- 8);
- queue_control_request(hfc, HFCUSB_FIFO,
- fifo->fifonum + 1);
- queue_control_request(hfc, HFCUSB_CON_HDLC,
- ((!fifo->
- transmode) ? 8 : 10));
- queue_control_request(hfc, HFCUSB_INC_RES_F, 2);
- queue_control_request(hfc, HFCUSB_SCTRL_R,
- hfc->bch_enables);
- restore_flags(flags);
-
- break;
-
- default:
- printk(KERN_INFO
- "unknown hfcusb bch_access chan %d 0x%x\n",
- chan, pr);
- break;
- }
-} /* hfcusb_bch_access */
+ break;
+ case PH_DEACTIVATE | REQUEST:
+ if(fifo->fifonum==HFCUSB_D_TX)
+ {
+#ifdef VERBOSE_ISDN_DEBUG
+ printk (KERN_INFO "HFC_USB: hfc_usb_d_l2l1 D-chan: PH_DEACTIVATE | REQUEST\n");
+#endif
+ printk (KERN_INFO "HFC-USB: ISDN TE device should not deativate...\n");
+ }
+ else
+ {
+#ifdef VERBOSE_ISDN_DEBUG
+ printk (KERN_INFO "HFC_USB: hfc_usb_d_l2l1 Bx-chan: PH_DEACTIVATE | REQUEST\n");
+#endif
+ set_hfcmode(hfc,(fifo->fifonum==HFCUSB_B1_TX) ? 0 : 1 ,(int)L1_MODE_NULL);
+ fifo->hif->l1l2(fifo->hif,PH_DEACTIVATE | INDICATION, NULL);
+ }
+ break;
+ case PH_DATA | REQUEST:
+ if(fifo->skbuff && fifo->delete_flg)
+ {
+ dev_kfree_skb_any(fifo->skbuff);
+ //printk(KERN_INFO "skbuff=NULL on fifo:%d\n",fifo->fifonum);
+ fifo->skbuff = NULL;
+ fifo->delete_flg=FALSE;
+ }
+
+ fifo->skbuff=arg; // we have a new buffer
+
+ //if(fifo->fifonum==HFCUSB_D_TX) printk (KERN_INFO "HFC_USB: hfc_usb_d_l2l1 D-chan: PH_DATA | REQUEST\n");
+ //else printk (KERN_INFO "HFC_USB: hfc_usb_d_l2l1 Bx-chan: PH_DATA | REQUEST\n");
+ break;
+ default:
+ printk (KERN_INFO "HFC_USB: hfc_usb_d_l2l1: unkown state : %#x\n", pr);
+ break;
+ }
+}
+
+// valid configurations
+#define CNF_4INT3ISO 1 // 4 INT IN, 3 ISO OUT
+#define CNF_3INT3ISO 2 // 3 INT IN, 3 ISO OUT
+#define CNF_4ISO3ISO 3 // 4 ISO IN, 3 ISO OUT
+#define CNF_3ISO3ISO 4 // 3 ISO IN, 3 ISO OUT
+
+
+/*
+ --------------------------------------------------------------------------------------
+ From here on USB initialization and deactivation related routines are implemented :
+
+ - hfc_usb_init :
+ is the main Entry Point for the USB Subsystem when the device get plugged
+ in. This function calls usb_register with usb_driver as parameter.
+ Here, further entry points for probing (hfc_usb_probe) and disconnecting
+ the device (hfc_usb_disconnect) are published, as the id_table
+
+ - hfc_usb_probe
+ this function is called by the usb subsystem, and steps through the alternate
+ settings of the currently plugged in device to detect all Endpoints needed to
+ run an ISDN TA.
+ Needed EndPoints are
+ 3 (+1) IntIn EndPoints (D-in, E-in, B1-in, B2-in, (E-in)) or
+ 3 (+1) Isochron In Endpoints (D-out, B1-out, B2-out) and 3 IsoOut Endpoints
+ The currently used transfer mode of on the Out-Endpoints will be stored in
+ hfc->usb_transfer_mode and is either USB_INT or USB_ISO
+ When a valid alternate setting could be found, the usb_init (see blow)
+ function is called
+
+ - usb_init
+ Here, the HFC_USB Chip itself gets initialized and the USB framework to send/receive
+ Data to/from the several EndPoints are initialized:
+ The E- and D-Channel Int-In chain gets started
+ The IsoChain for the Iso-Out traffic get started
+
+ - hfc_usb_disconnect
+ this function is called by the usb subsystem and has to free all resources
+ and stop all usb traffic to allow a proper hotplugging disconnect.
+
+*/
/***************************************************************************/
/* usb_init is called once when a new matching device is detected to setup */
-/* main parmeters. It registers the driver at the main hisax module. */
+/* main parameters. It registers the driver at the main hisax module. */
/* on success 0 is returned. */
/***************************************************************************/
-static int
-usb_init(hfcusb_data * hfc)
+static int usb_init(hfcusb_data * hfc)
{
usb_fifo *fifo;
- int i;
+ int i, err;
u_char b;
-
+ struct hisax_b_if *p_b_if[2];
+
/* check the chip id */
- if ((Read_hfc(hfc, HFCUSB_CHIP_ID, &b) != 1) ||
- (b != HFCUSB_CHIPID)) {
+ printk(KERN_INFO "HFCUSB_CHIP_ID begin\n");
+ if (read_usb(hfc, HFCUSB_CHIP_ID, &b) != 1) {
+ printk(KERN_INFO "HFC-USB: cannot read chip id\n");
+ return(1);
+ }
+ printk(KERN_INFO "HFCUSB_CHIP_ID %x\n", b);
+ if (b != HFCUSB_CHIPID) {
printk(KERN_INFO "HFC-USB: Invalid chip id 0x%02x\n", b);
- return (1);
+ return(1);
}
/* first set the needed config, interface and alternate */
- usb_set_configuration(hfc->dev, 1);
- usb_set_interface(hfc->dev, hfc->if_used, hfc->alt_used);
+ printk(KERN_INFO "usb_init 1\n");
+// usb_set_configuration(hfc->dev, 1);
+ printk(KERN_INFO "usb_init 2\n");
+ err = usb_set_interface(hfc->dev, hfc->if_used, hfc->alt_used);
+ printk(KERN_INFO "usb_init usb_set_interface return %d\n", err);
+ /* now we initialize the chip */
+ write_usb(hfc, HFCUSB_CIRM, 8); // do reset
+ write_usb(hfc, HFCUSB_CIRM, 0x10); // aux = output, reset off
- /* init the led state request */
- hfc->led_req = LED_DRIVER;
+ // set USB_SIZE to match the the wMaxPacketSize for INT or BULK transfers
+ write_usb(hfc, HFCUSB_USB_SIZE,(hfc->packet_size/8) | ((hfc->packet_size/8) << 4));
- /* now we initialise the chip */
- Write_hfc(hfc, HFCUSB_CIRM, 0x10); /* aux = output, reset off */
- Write_hfc(hfc, HFCUSB_P_DATA, 0); /* leds = off */
- Write_hfc(hfc, HFCUSB_USB_SIZE,
- (hfc->fifos[HFCUSB_B1_TX].usb_maxlen >> 3) |
- ((hfc->fifos[HFCUSB_B1_RX].usb_maxlen >> 3) << 4));
+ // set USB_SIZE_I to match the the wMaxPacketSize for ISO transfers
+ write_usb(hfc, HFCUSB_USB_SIZE_I, hfc->iso_packet_size);
/* enable PCM/GCI master mode */
- Write_hfc(hfc, HFCUSB_MST_MODE1, 0); /* set default values */
- Write_hfc(hfc, HFCUSB_MST_MODE0, 1); /* enable master mode */
+ write_usb(hfc, HFCUSB_MST_MODE1, 0); /* set default values */
+ write_usb(hfc, HFCUSB_MST_MODE0, 1); /* enable master mode */
/* init the fifos */
- Write_hfc(hfc, HFCUSB_F_THRES, (HFCUSB_TX_THRESHOLD >> 3) |
- ((HFCUSB_RX_THRESHOLD >> 3) << 4));
+ write_usb(hfc, HFCUSB_F_THRES, (HFCUSB_TX_THRESHOLD/8) |((HFCUSB_RX_THRESHOLD/8) << 4));
- for (i = 0, fifo = hfc->fifos + i; i < HFCUSB_NUM_FIFOS;
- i++, fifo++) {
- Write_hfc(hfc, HFCUSB_FIFO, i); /* select the desired fifo */
-
- fifo->transmode = 0; /* hdlc mode selected */
- fifo->buff = NULL; /* init buffer pointer */
- fifo->max_size =
- (i <= HFCUSB_B2_RX) ? MAX_BCH_SIZE : MAX_DFRAME_LEN;
- Write_hfc(hfc, HFCUSB_HDLC_PAR, ((i <= HFCUSB_B2_RX) ? 0 : 2)); /* data length */
- Write_hfc(hfc, HFCUSB_CON_HDLC, ((i & 1) ? 0x08 : 0x09)); /* rx hdlc, tx fill 1 */
- Write_hfc(hfc, HFCUSB_INC_RES_F, 2); /* reset the fifo */
- }
-
- Write_hfc(hfc, HFCUSB_CLKDEL, 0x0f); /* clock delay value */
- Write_hfc(hfc, HFCUSB_STATES, 3 | 0x10); /* set deactivated mode */
- Write_hfc(hfc, HFCUSB_STATES, 3); /* enable state machine */
+ fifo = hfc->fifos;
+ for(i = 0; i < HFCUSB_NUM_FIFOS; i++)
+ {
+ write_usb(hfc, HFCUSB_FIFO, i); /* select the desired fifo */
+ fifo[i].skbuff = NULL; /* init buffer pointer */
+ fifo[i].max_size = (i <= HFCUSB_B2_RX) ? MAX_BCH_SIZE : MAX_DFRAME_LEN;
+ fifo[i].last_urblen=0;
+ write_usb(hfc, HFCUSB_HDLC_PAR, ((i <= HFCUSB_B2_RX) ? 0 : 2)); // set 2 bit for D- & E-channel
+ write_usb(hfc, HFCUSB_CON_HDLC, ((i==HFCUSB_D_TX) ? 0x09 : 0x08)); // rx hdlc, enable IFF for D-channel
+ write_usb(hfc, HFCUSB_INC_RES_F, 2); /* reset the fifo */
+ }
- Write_hfc(hfc, HFCUSB_SCTRL_R, 0); /* disable both B receivers */
- Write_hfc(hfc, HFCUSB_SCTRL, 0x40); /* disable B transmitters + cap mode */
+ write_usb(hfc, HFCUSB_CLKDEL, 0x0f); /* clock delay value */
+ write_usb(hfc, HFCUSB_STATES, 3 | 0x10); /* set deactivated mode */
+ write_usb(hfc, HFCUSB_STATES, 3); /* enable state machine */
+
+ write_usb(hfc, HFCUSB_SCTRL_R, 0); /* disable both B receivers */
+ write_usb(hfc, HFCUSB_SCTRL, 0x40); /* disable B transmitters + capacitive mode */
+
+ // set both B-channel to not connected
+ hfc->b_mode[0]=L1_MODE_NULL;
+ hfc->b_mode[1]=L1_MODE_NULL;
+
+ hfc->l1_activated=FALSE;
+ hfc->led_state=0;
+ hfc->led_new_data=0;
- /* init the l1 timer */
+ /* init the t3 timer */
init_timer(&hfc->t3_timer);
hfc->t3_timer.data = (long) hfc;
- hfc->t3_timer.function = (void *) l1_timer_expire;
+ hfc->t3_timer.function = (void *) l1_timer_expire_t3;
+ /* init the t4 timer */
+ init_timer(&hfc->t4_timer);
hfc->t4_timer.data = (long) hfc;
- hfc->t4_timer.function = (void *) l1_timer_expire;
- hfc->l1_tq.routine = (void *) (void *) usb_l1d_bh;
- hfc->l1_tq.sync = 0;
- hfc->l1_tq.data = hfc;
-
- /* init the background control machinery */
- hfc->ctrl_read.requesttype = 0xc0;
- hfc->ctrl_read.request = 1;
- hfc->ctrl_read.length = 1;
- hfc->ctrl_write.requesttype = 0x40;
- hfc->ctrl_write.request = 0;
- hfc->ctrl_write.length = 0;
- FILL_CONTROL_URB(&hfc->ctrl_urb, hfc->dev, hfc->ctrl_out_pipe,
- (u_char *) & hfc->ctrl_write, NULL, 0,
- ctrl_complete, hfc);
-
- /* init the TX-urbs */
- fifo = hfc->fifos + HFCUSB_D_TX;
- FILL_BULK_URB(&fifo->urb, hfc->dev, fifo->pipe,
- (u_char *) fifo->buffer, 0, tx_complete, fifo);
- fifo = hfc->fifos + HFCUSB_B1_TX;
- FILL_BULK_URB(&fifo->urb, hfc->dev, fifo->pipe,
- (u_char *) fifo->buffer, 0, tx_complete, fifo);
- fifo = hfc->fifos + HFCUSB_B2_TX;
- FILL_BULK_URB(&fifo->urb, hfc->dev, fifo->pipe,
- (u_char *) fifo->buffer, 0, tx_complete, fifo);
-
- /* init the E-buffer */
- skb_queue_head_init(&hfc->regd.erq);
-
- /* now register ourself at hisax */
- hfc->regd.version = HISAX_LOAD_VERSION; /* set our version */
- hfc->regd.cmd = HISAX_LOAD_REGISTER; /* register command */
- hfc->regd.argl1 = (void *) hfc; /* argument for our local routine */
- hfc->regd.dch_l2l1 = hfcusb_l1_access;
- hfc->regd.bch_l2l1 = hfcusb_bch_access;
- hfc->regd.drvname = "hfc_usb";
- if (hisax_register_hfcusb(&hfc->regd)) {
- printk(KERN_INFO "HFC-USB failed to register at hisax\n");
- Write_hfc(hfc, HFCUSB_CIRM, 0x08); /* aux = input, reset on */
- return (1);
- }
-
- /* startup the D- and E-channel fifos */
- start_rx_fifo(hfc->fifos + HFCUSB_D_RX); /* D-fifo */
- if (hfc->fifos[HFCUSB_PCM_RX].pipe)
- start_rx_fifo(hfc->fifos + HFCUSB_PCM_RX); /* E-fifo */
+ hfc->t4_timer.function = (void *) l1_timer_expire_t4;
+ /* init the led timer */
+ init_timer(&hfc->led_timer);
+ hfc->led_timer.data = (long) hfc;
+ hfc->led_timer.function = (void *) led_timer;
+ // trigger 4 hz led timer
+ hfc->led_timer.expires = jiffies + (LED_TIME * HZ) / 1000;
+ if(!timer_pending(&hfc->led_timer)) add_timer(&hfc->led_timer);
+
+ // init the background machinery for control requests
+ hfc->ctrl_read.bRequestType = 0xc0;
+ hfc->ctrl_read.bRequest = 1;
+ hfc->ctrl_read.wLength = 1;
+ hfc->ctrl_write.bRequestType = 0x40;
+ hfc->ctrl_write.bRequest = 0;
+ hfc->ctrl_write.wLength = 0;
+ usb_fill_control_urb(hfc->ctrl_urb, hfc->dev, hfc->ctrl_out_pipe,(u_char *) & hfc->ctrl_write, NULL, 0, ctrl_complete, hfc);
+
+ /* Init All Fifos */
+ for(i = 0; i < HFCUSB_NUM_FIFOS; i++)
+ {
+ hfc->fifos[i].iso[0].purb = NULL;
+ hfc->fifos[i].iso[1].purb = NULL;
+ hfc->fifos[i].active = 0;
+ }
+
+ // register like Germaschewski :
+ hfc->d_if.owner = THIS_MODULE;
+ hfc->d_if.ifc.priv = &hfc->fifos[HFCUSB_D_TX];
+ hfc->d_if.ifc.l2l1 = hfc_usb_l2l1;
+
+ for (i=0; i<2; i++)
+ {
+ hfc->b_if[i].ifc.priv = &hfc->fifos[HFCUSB_B1_TX+i*2];
+ hfc->b_if[i].ifc.l2l1 = hfc_usb_l2l1;
+ p_b_if[i] = &hfc->b_if[i];
+ }
+
+ hfc->protocol = 2; /* default EURO ISDN, should be a module_param */
+ hisax_register(&hfc->d_if, p_b_if, "hfc_usb", hfc->protocol);
+
+ for (i=0; i<4; i++)
+ hfc->fifos[i].hif=&p_b_if[i/2]->ifc;
+ for (i=4; i<8; i++)
+ hfc->fifos[i].hif=&hfc->d_if.ifc;
+
+ // 3 (+1) INT IN + 3 ISO OUT
+ if(hfc->cfg_used == CNF_3INT3ISO || hfc->cfg_used == CNF_4INT3ISO)
+ {
+ start_int_fifo(hfc->fifos + HFCUSB_D_RX); // Int IN D-fifo
+ if(hfc->fifos[HFCUSB_PCM_RX].pipe) start_int_fifo(hfc->fifos + HFCUSB_PCM_RX); // E-fifo
+ start_int_fifo(hfc->fifos + HFCUSB_B1_RX); // Int IN B1-fifo
+ start_int_fifo(hfc->fifos + HFCUSB_B2_RX); // Int IN B2-fifo
+ }
+
+ // 3 (+1) ISO IN + 3 ISO OUT
+ if(hfc->cfg_used==CNF_3ISO3ISO || hfc->cfg_used==CNF_4ISO3ISO)
+ {
+ start_isoc_chain(hfc->fifos + HFCUSB_D_RX, ISOC_PACKETS_D, rx_iso_complete,16);
+ if(hfc->fifos[HFCUSB_PCM_RX].pipe) start_isoc_chain(hfc->fifos + HFCUSB_PCM_RX, ISOC_PACKETS_D, rx_iso_complete,16);
+ start_isoc_chain(hfc->fifos + HFCUSB_B1_RX, ISOC_PACKETS_B, rx_iso_complete,16);
+ start_isoc_chain(hfc->fifos + HFCUSB_B2_RX, ISOC_PACKETS_B, rx_iso_complete,16);
+ }
+
+ start_isoc_chain(hfc->fifos + HFCUSB_D_TX, ISOC_PACKETS_D, tx_iso_complete,1);
+ start_isoc_chain(hfc->fifos + HFCUSB_B1_TX, ISOC_PACKETS_B, tx_iso_complete,1);
+ start_isoc_chain(hfc->fifos + HFCUSB_B2_TX, ISOC_PACKETS_B, tx_iso_complete,1);
+
+ handle_led(hfc,LED_POWER_ON);
+
+ return(0);
+} /* usb_init */
+
+
+/****************************************/
+/* data defining the devices to be used */
+/****************************************/
+// static __devinitdata const struct usb_device_id hfc_usb_idtab[3] = {
+static struct usb_device_id hfc_usb_idtab[] = {
+ {USB_DEVICE(0x7b0, 0x0007)}, /* Billion USB TA 2 */
+ {USB_DEVICE(0x742, 0x2008)}, /* Stollmann USB TA */
+ {USB_DEVICE(0x959, 0x2bd0)}, /* Colognechip USB eval TA */
+ {USB_DEVICE(0x8e3, 0x0301)}, /* OliTec ISDN USB */
+ {USB_DEVICE(0x675, 0x1688)}, /* DrayTec ISDN USB */
+ {USB_DEVICE(0x7fa, 0x0846)}, /* Bewan ISDN USB TA */
+ {} /* end with an all-zeroes entry */
+};
+
+MODULE_AUTHOR("Peter Sprenger (sprenger@moving-byters.de)/Martin Bachem (info@colognechip.com)");
+MODULE_DESCRIPTION("HFC I4L USB driver");
+MODULE_DEVICE_TABLE(usb, hfc_usb_idtab);
+MODULE_LICENSE("GPL");
+
+#define EP_NUL 1 // Endpoint at this position not allowed
+#define EP_NOP 2 // all type of endpoints allowed at this position
+#define EP_ISO 3 // Isochron endpoint mandatory at this position
+#define EP_BLK 4 // Bulk endpoint mandatory at this position
+#define EP_INT 5 // Interrupt endpoint mandatory at this position
+
+// this array represents all endpoints possible in the HCF-USB
+// the last 2 entries are the configuration number and the minimum interval for Interrupt endpoints
+int validconf[][18]=
+{
+ // INT in, ISO out config
+ {EP_NUL,EP_INT,EP_NUL,EP_INT,EP_NUL,EP_INT,EP_NOP,EP_INT,EP_ISO,EP_NUL,EP_ISO,EP_NUL,EP_ISO,EP_NUL,EP_NUL,EP_NUL,CNF_4INT3ISO,2},
+ {EP_NUL,EP_INT,EP_NUL,EP_INT,EP_NUL,EP_INT,EP_NUL,EP_NUL,EP_ISO,EP_NUL,EP_ISO,EP_NUL,EP_ISO,EP_NUL,EP_NUL,EP_NUL,CNF_3INT3ISO,2},
+ // ISO in, ISO out config
+ {EP_NUL,EP_NUL,EP_NUL,EP_NUL,EP_NUL,EP_NUL,EP_NUL,EP_NUL,EP_ISO,EP_ISO,EP_ISO,EP_ISO,EP_ISO,EP_ISO,EP_NOP,EP_ISO,CNF_4ISO3ISO,2},
+ {EP_NUL,EP_NUL,EP_NUL,EP_NUL,EP_NUL,EP_NUL,EP_NUL,EP_NUL,EP_ISO,EP_ISO,EP_ISO,EP_ISO,EP_ISO,EP_ISO,EP_NUL,EP_NUL,CNF_3ISO3ISO,2},
+ {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0} // EOL element
+};
+
+// string description of chosen config
+char *conf_str[]=
+{
+ "4 Interrupt IN + 3 Isochron OUT",
+ "3 Interrupt IN + 3 Isochron OUT",
+ "4 Isochron IN + 3 Isochron OUT",
+ "3 Isochron IN + 3 Isochron OUT"
+};
- return (0);
-} /* usb_init */
/*************************************************/
/* function called to probe a new plugged device */
/*************************************************/
-static void *
-hfc_usb_probe(struct usb_device *dev, unsigned int interface
-#ifdef COMPAT_HAS_USB_IDTAB
- , const struct usb_device_id *id_table)
-#else
- )
-#endif
+//static int hfc_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
+static void* hfc_usb_probe(struct usb_device *dev, unsigned int ifnum, const struct usb_device_id *id)
{
+ //struct usb_device *dev= interface_to_usbdev(intf);
+ struct usb_interface* intf = dev->actconfig->interface + ifnum;
hfcusb_data *context;
- struct usb_interface *ifp = dev->actconfig->interface + interface;
- struct usb_interface_descriptor *ifdp =
- ifp->altsetting + ifp->act_altsetting;
- struct usb_endpoint_descriptor *epd;
- int i, idx, ep_msk;
-
-#ifdef COMPAT_HAS_USB_IDTAB
- if (id_table && (dev->descriptor.idVendor == id_table->idVendor) &&
- (dev->descriptor.idProduct == id_table->idProduct) &&
-#else
- if ((((dev->descriptor.idVendor == 0x959) &&
- (dev->descriptor.idProduct == 0x2bd0)) ||
- ((dev->descriptor.idVendor == 0x7b0) &&
- (dev->descriptor.idProduct == 0x0006))) &&
-#endif
- (ifdp->bNumEndpoints >= 6) && (ifdp->bNumEndpoints <= 16)) {
- if (!(context = kmalloc(sizeof(hfcusb_data), GFP_KERNEL))) {
- return (NULL); /* got no mem */
- };
- memset(context, 0, sizeof(hfcusb_data)); /* clear the structure */
- i = ifdp->bNumEndpoints; /* get number of endpoints */
- ep_msk = 0; /* none found */
- epd = ifdp->endpoint; /* first endpoint descriptor */
- while (i-- && ((ep_msk & 0xcf) != 0xcf)) {
-
- idx = (((epd->bEndpointAddress & 0x7f) - 1) << 1); /* get endpoint base */
- if (idx < 7) {
- switch (epd->bmAttributes) {
- case USB_ENDPOINT_XFER_INT:
- if (!
- (epd->
- bEndpointAddress &
- 0x80))
- break; /* only interrupt in allowed */
- idx++; /* input index is odd */
- context->fifos[idx].pipe =
- usb_rcvintpipe(dev,
- epd->
- bEndpointAddress);
- break;
-
- case USB_ENDPOINT_XFER_BULK:
- if (epd->
- bEndpointAddress &
- 0x80)
- break; /* only bulk out allowed */
- context->fifos[idx].pipe =
- usb_sndbulkpipe(dev,
- epd->
- bEndpointAddress);
- break;
- default:
- context->fifos[idx].pipe = 0; /* reset data */
- } /* switch attribute */
-
- if (context->fifos[idx].pipe) {
- context->fifos[idx].fifonum = idx;
- context->fifos[idx].fifo_mask =
- 1 << idx;
- context->fifos[idx].hfc = context;
- context->fifos[idx].usb_maxlen =
- epd->wMaxPacketSize;
- context->fifos[idx].intervall =
- epd->bInterval;
- ep_msk |= (1 << idx);
- } else
- ep_msk &= ~(1 << idx);
- } /* idx < 7 */
- epd++;
- }
+ //struct usb_host_interface *iface = intf->cur_altsetting;
+ //struct usb_host_interface *iface_used = NULL;
+ //struct usb_host_endpoint *ep;
+ struct usb_endpoint_descriptor* ep;
+ //int ifnum = iface->desc.bInterfaceNumber;
+ struct usb_interface_descriptor* intfdesc = intf->altsetting + intf->act_altsetting;
+ struct usb_interface_descriptor* intfdesc_used = NULL;
+ int i, idx, alt_idx, probe_alt_setting, vend_idx, cfg_used, *vcf, attr, cfg_found, cidx, ep_addr;
+ int cmptbl[16],small_match,iso_packet_size,packet_size,alt_used=0;
+
+// usb_show_device(dev);
+// usb_show_device_descriptor(&dev->descriptor);
+// usb_show_interface_descriptor(&iface->desc);
+ vend_idx=0xffff;
+ for(i=0;vdata[i].vendor;i++)
+ {
+ if(dev->descriptor.idVendor==vdata[i].vendor && dev->descriptor.idProduct==vdata[i].prod_id) vend_idx=i;
+ }
+
- if ((ep_msk & 0x3f) != 0x3f) {
- kfree(context);
- return (NULL);
- }
- MOD_INC_USE_COUNT; /* lock our module */
- context->dev = dev; /* save device */
- context->if_used = interface; /* save used interface */
- context->alt_used = ifp->act_altsetting; /* and alternate config */
- context->ctrl_paksize = dev->descriptor.bMaxPacketSize0; /* control size */
-
- /* create the control pipes needed for register access */
- context->ctrl_in_pipe = usb_rcvctrlpipe(context->dev, 0);
- context->ctrl_out_pipe = usb_sndctrlpipe(context->dev, 0);
-
- /* init the chip and register the driver */
- if (usb_init(context)) {
- kfree(context);
- MOD_DEC_USE_COUNT;
- return (NULL);
- }
+#ifdef VERBOSE_USB_DEBUG
+ printk(KERN_INFO "HFC-USB: probing interface(%d) actalt(%d)\n",
+ ifnum, intfdesc->bAlternateSetting);
+ /* printk(KERN_INFO "HFC-USB: probing interface(%d) actalt(%d) minor(%d)\n",
+ ifnum, intfdesc->bAlternateSetting, intf->driver->minor); */
+#endif
- printk(KERN_INFO
- "HFC-USB: New device if=%d alt=%d registered\n",
- context->if_used, context->alt_used);
- return (context);
- }
+ if (vend_idx != 0xffff) {
+#ifdef VERBOSE_USB_DEBUG
+ printk(KERN_INFO "HFC-USB: found vendor idx:%d name:%s\n",vend_idx,vdata[vend_idx].vend_name);
+#endif
+ /* if vendor and product ID is OK, start probing a matching alternate setting ... */
+ alt_idx = 0;
+ small_match=0xffff;
+ // default settings
+ iso_packet_size=16;
+ packet_size=64;
+
+ while (alt_idx < intf->num_altsetting) {
+ //iface = intf->altsetting + alt_idx;
+ intfdesc = intf->altsetting + alt_idx;
+ probe_alt_setting = intfdesc->bAlternateSetting;
+ cfg_used=0;
- return (NULL); /* no matching entry */
-} /* hfc_usb_probe */
+#ifdef VERBOSE_USB_DEBUG
+ printk(KERN_INFO "HFC-USB: test alt_setting %d\n", probe_alt_setting);
+#endif
+ // check for config EOL element
+ while (validconf[cfg_used][0]) {
+ cfg_found=TRUE;
+ vcf=validconf[cfg_used];
+ ep = intfdesc->endpoint; /* first endpoint descriptor */
+
+#ifdef VERBOSE_USB_DEBUG
+ printk(KERN_INFO "HFC-USB: (if=%d alt=%d cfg_used=%d)\n",
+ ifnum, probe_alt_setting, cfg_used);
+#endif
+ // copy table
+ memcpy(cmptbl,vcf,16*sizeof(int));
+
+ // check for all endpoints in this alternate setting
+ for (i=0; i < intfdesc->bNumEndpoints; i++) {
+ ep_addr = ep->bEndpointAddress;
+ idx = ((ep_addr & 0x7f)-1)*2; /* get endpoint base */
+ if (ep_addr & 0x80)
+ idx++;
+ attr = ep->bmAttributes;
+
+ if (cmptbl[idx] == EP_NUL) {
+ printk(KERN_INFO "HFC-USB: cfg_found=FALSE in idx:%d attr:%d cmptbl[%d]:%d\n",
+ idx, attr, idx, cmptbl[idx]);
+ cfg_found = FALSE;
+ }
+
+ if (attr == USB_ENDPOINT_XFER_INT && cmptbl[idx] == EP_INT)
+ cmptbl[idx] = EP_NUL;
+ if (attr == USB_ENDPOINT_XFER_BULK && cmptbl[idx] == EP_BLK)
+ cmptbl[idx] = EP_NUL;
+ if (attr == USB_ENDPOINT_XFER_ISOC && cmptbl[idx] == EP_ISO)
+ cmptbl[idx] = EP_NUL;
+
+ // check if all INT endpoints match minimum interval
+ if (attr == USB_ENDPOINT_XFER_INT && ep->bInterval < vcf[17]) {
+#ifdef VERBOSE_USB_DEBUG
+ if (cfg_found)
+ printk(KERN_INFO "HFC-USB: Interrupt Endpoint interval < %d found - skipping config\n",
+ vcf[17]);
+#endif
+ cfg_found = FALSE;
+ }
+
+ ep++;
+ }
+
+ for (i = 0; i < 16; i++) {
+ // printk(KERN_INFO "HFC-USB: cmptbl[%d]:%d\n", i, cmptbl[i]);
+
+ // all entries must be EP_NOP or EP_NUL for a valid config
+ if (cmptbl[i] != EP_NOP && cmptbl[i] != EP_NUL)
+ cfg_found = FALSE;
+ }
+
+ // we check for smallest match, to provide configuration priority
+ // configurations with smaller index have higher priority
+ if (cfg_found) {
+ if (cfg_used < small_match) {
+ small_match = cfg_used;
+ alt_used = probe_alt_setting;
+ //iface_used = iface;
+ intfdesc_used = intfdesc;
+ }
+#ifdef VERBOSE_USB_DEBUG
+ printk(KERN_INFO "HFC-USB: small_match=%x %x\n", small_match, alt_used);
+#endif
+ }
+
+ cfg_used++;
+ }
+
+ alt_idx++;
+ } /* (alt_idx < intf->num_altsetting) */
+#ifdef VERBOSE_USB_DEBUG
+ printk(KERN_INFO "HFC-USB: final small_match=%x alt_used=%x\n",small_match, alt_used);
+#endif
+ // yiipiee, we found a valid config
+ if (small_match != 0xffff) {
+ //iface = iface_used;
+ intfdesc = intfdesc_used;
+
+ if (!(context = kmalloc(sizeof(hfcusb_data), GFP_KERNEL)))
+ return(NULL); /* got no mem */
+ memset(context, 0, sizeof(hfcusb_data)); /* clear the structure */
+
+ ep = intfdesc->endpoint; /* first endpoint descriptor */
+ vcf = validconf[small_match];
+
+ for (i = 0; i < intfdesc->bNumEndpoints; i++) {
+ ep_addr = ep->bEndpointAddress;
+ idx = ((ep_addr & 0x7f)-1)*2; /* get endpoint base */
+ if (ep_addr & 0x80)
+ idx++;
+ cidx = idx & 7;
+ attr = ep->bmAttributes;
+
+ // only initialize used endpoints
+ if (vcf[idx] != EP_NOP && vcf[idx] != EP_NUL) {
+ switch (attr) {
+ case USB_ENDPOINT_XFER_INT:
+ context->fifos[cidx].pipe = usb_rcvintpipe(dev, ep->bEndpointAddress);
+ context->fifos[cidx].usb_transfer_mode = USB_INT;
+ packet_size = ep->wMaxPacketSize; // remember max packet size
+#ifdef VERBOSE_USB_DEBUG
+ printk (KERN_INFO "HFC-USB: Interrupt-In Endpoint found %d ms(idx:%d cidx:%d)!\n",
+ ep->bInterval, idx, cidx);
+#endif
+ break;
+ case USB_ENDPOINT_XFER_BULK:
+ if (ep_addr & 0x80)
+ context->fifos[cidx].pipe = usb_rcvbulkpipe(dev, ep->bEndpointAddress);
+ else
+ context->fifos[cidx].pipe = usb_sndbulkpipe(dev, ep->bEndpointAddress);
+ context->fifos[cidx].usb_transfer_mode = USB_BULK;
+ packet_size = ep->wMaxPacketSize; // remember max packet size
+#ifdef VERBOSE_USB_DEBUG
+ printk (KERN_INFO "HFC-USB: Bulk Endpoint found (idx:%d cidx:%d)!\n",
+ idx, cidx);
+#endif
+ break;
+ case USB_ENDPOINT_XFER_ISOC:
+ if (ep_addr & 0x80)
+ context->fifos[cidx].pipe = usb_rcvisocpipe(dev, ep->bEndpointAddress);
+ else
+ context->fifos[cidx].pipe = usb_sndisocpipe(dev, ep->bEndpointAddress);
+ context->fifos[cidx].usb_transfer_mode = USB_ISOC;
+ iso_packet_size = ep->wMaxPacketSize; // remember max packet size
+#ifdef VERBOSE_USB_DEBUG
+ printk (KERN_INFO "HFC-USB: ISO Endpoint found (idx:%d cidx:%d)!\n",
+ idx, cidx);
+#endif
+ break;
+ default:
+ context->fifos[cidx].pipe = 0; /* reset data */
+ } /* switch attribute */
+
+ if (context->fifos[cidx].pipe) {
+ context->fifos[cidx].fifonum = cidx;
+ context->fifos[cidx].hfc = context;
+ context->fifos[cidx].usb_packet_maxlen = ep->wMaxPacketSize;
+ context->fifos[cidx].intervall = ep->bInterval;
+ context->fifos[cidx].skbuff = NULL;
+#ifdef VERBOSE_USB_DEBUG
+ printk (KERN_INFO "HFC-USB: fifo%d pktlen %d interval %d\n",
+ context->fifos[cidx].fifonum,
+ context->fifos[cidx].usb_packet_maxlen,
+ context->fifos[cidx].intervall);
+#endif
+ }
+ }
+
+ ep++;
+ }
+
+ // now share our luck
+ context->dev = dev; /* save device */
+ context->if_used = ifnum; /* save used interface */
+ context->alt_used = alt_used; /* and alternate config */
+ context->ctrl_paksize = dev->descriptor.bMaxPacketSize0; /* control size */
+ context->cfg_used=vcf[16]; // store used config
+ context->vend_idx=vend_idx; // store found vendor
+ context->packet_size=packet_size;
+ context->iso_packet_size=iso_packet_size;
+
+ /* create the control pipes needed for register access */
+ context->ctrl_in_pipe = usb_rcvctrlpipe(context->dev, 0);
+ context->ctrl_out_pipe = usb_sndctrlpipe(context->dev, 0);
+ context->ctrl_urb = usb_alloc_urb(0);
+
+ printk(KERN_INFO "HFC-USB: detected \"%s\" configuration: %s (if=%d alt=%d)\n",
+ vdata[vend_idx].vend_name, conf_str[small_match], context->if_used, context->alt_used);
+
+ /* init the chip and register the driver */
+ if (usb_init(context))
+ {
+ if (context->ctrl_urb) {
+ usb_unlink_urb(context->ctrl_urb);
+ usb_free_urb(context->ctrl_urb);
+ context->ctrl_urb = NULL;
+ }
+ kfree(context);
+ return(NULL);
+ }
+ //usb_set_intfdata(intf, context);
+ //intf->private_data = context;
+ return(context);
+ }
+ }
+ return(NULL);
+}
/****************************************************/
/* function called when an active device is removed */
/****************************************************/
-static void
-hfc_usb_disconnect(struct usb_device *usbdev, void *drv_context)
+//static void hfc_usb_disconnect(struct usb_interface *intf)
+static void hfc_usb_disconnect(struct usb_device *usbdev, void* drv_context)
{
- hfcusb_data *context = drv_context;
+ //hfcusb_data *context = intf->private_data;
+ hfcusb_data* context = drv_context;
int i;
- struct sk_buff *skb;
- /* tell all fifos to terminate */
- for (i = 0; i < HFCUSB_NUM_FIFOS; i++)
- if (context->fifos[i].active) {
- context->fifos[i].active = 0;
- usb_unlink_urb(&context->fifos[i].urb);
- }
- while (context->active_fifos) {
- set_current_state(TASK_INTERRUPTIBLE);
- /* Timeout 10ms */
- schedule_timeout((10 * HZ) / 1000);
- }
+ printk(KERN_INFO "HFC-USB: device disconnect\n");
+
+ //intf->private_data = NULL;
+ if (!context)
+ return;
if (timer_pending(&context->t3_timer))
del_timer(&context->t3_timer);
- context->regd.release_driver(context->regd.arg_hisax);
- while ((skb = skb_dequeue(&context->regd.erq)) != NULL)
- dev_kfree_skb_any(skb);
+ if (timer_pending(&context->t4_timer))
+ del_timer(&context->t4_timer);
+ if (timer_pending(&context->led_timer))
+ del_timer(&context->led_timer);
+
+ hisax_unregister(&context->d_if);
+ /* tell all fifos to terminate */
+ for(i = 0; i < HFCUSB_NUM_FIFOS; i++) {
+ if(context->fifos[i].usb_transfer_mode == USB_ISOC) {
+ if(context->fifos[i].active > 0) {
+ stop_isoc_chain(&context->fifos[i]);
+#ifdef VERBOSE_USB_DEBUG
+ printk (KERN_INFO "HFC-USB: hfc_usb_disconnect: stopping ISOC chain Fifo no %i\n", i);
+#endif
+ }
+ } else {
+ if(context->fifos[i].active > 0) {
+ context->fifos[i].active = 0;
+#ifdef VERBOSE_USB_DEBUG
+ printk (KERN_INFO "HFC-USB: hfc_usb_disconnect: unlinking URB for Fifo no %i\n", i);
+#endif
+ }
+ if (context->fifos[i].urb) {
+ usb_unlink_urb(context->fifos[i].urb);
+ usb_free_urb(context->fifos[i].urb);
+ context->fifos[i].urb = NULL;
+ }
+ }
+ context->fifos[i].active = 0;
+ }
+ if (context->ctrl_urb) {
+ usb_unlink_urb(context->ctrl_urb);
+ usb_free_urb(context->ctrl_urb);
+ context->ctrl_urb = NULL;
+ }
kfree(context); /* free our structure again */
- MOD_DEC_USE_COUNT; /* and decrement the usage counter */
} /* hfc_usb_disconnect */
+
/************************************/
/* our driver information structure */
/************************************/
static struct usb_driver hfc_drv = {
name:"hfc_usb",
-#ifdef COMPAT_HAS_USB_IDTAB
id_table:hfc_usb_idtab,
-#endif
probe:hfc_usb_probe,
disconnect:hfc_usb_disconnect,
};
-static void __exit
-hfc_usb_exit(void)
-{
+static void __exit hfc_usb_exit(void)
+{
+#ifdef VERBOSE_USB_DEBUG
+ printk ("HFC-USB: calling \"hfc_usb_exit\" ...\n");
+#endif
usb_deregister(&hfc_drv); /* release our driver */
printk(KERN_INFO "HFC-USB module removed\n");
}
-static int __init
-hfc_usb_init(void)
+static int __init hfc_usb_init(void)
{
- struct hisax_drvreg drv;
+ printk ("HFC-USB: driver module revision %s loaded\n", hfcusb_revision);
- drv.version = HISAX_LOAD_VERSION; /* set our version */
- drv.cmd = HISAX_LOAD_CHKVER; /* check command only */
- if (hisax_register_hfcusb(&drv)) {
- printk(KERN_INFO "HFC-USB <-> hisax version conflict\n");
- return (-1); /* unable to register */
- }
- if (usb_register(&hfc_drv)) {
- printk(KERN_INFO
- "Unable to register HFC-USB module at usb stack\n");
- return (-1); /* unable to register */
+ if(usb_register(&hfc_drv))
+ {
+ printk(KERN_INFO "HFC-USB: Unable to register HFC-USB module at usb stack\n");
+ return(-1); /* unable to register */
}
-
- printk(KERN_INFO "HFC-USB module loaded\n");
- return (0);
+ return(0);
}
+
+
+
+
module_init(hfc_usb_init);
module_exit(hfc_usb_exit);
+
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