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path: root/drivers/isdn/hisax/hfc_usb.c
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Diffstat (limited to 'drivers/isdn/hisax/hfc_usb.c')
-rw-r--r--drivers/isdn/hisax/hfc_usb.c1594
1 files changed, 0 insertions, 1594 deletions
diff --git a/drivers/isdn/hisax/hfc_usb.c b/drivers/isdn/hisax/hfc_usb.c
deleted file mode 100644
index b6e58c11c288..000000000000
--- a/drivers/isdn/hisax/hfc_usb.c
+++ /dev/null
@@ -1,1594 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * hfc_usb.c
- *
- * $Id: hfc_usb.c,v 2.3.2.24 2007/10/14 08:40:29 mbachem Exp $
- *
- * modular HiSax ISDN driver for Colognechip HFC-S USB chip
- *
- * Authors : Peter Sprenger (sprenger@moving-bytes.de)
- * Martin Bachem (m.bachem@gmx.de, info@colognechip.com)
- *
- * based on the first hfc_usb driver of
- * Werner Cornelius (werner@isdn-development.de)
- *
- * See Version Histroy at the bottom of this file
- */
-
-#include <linux/types.h>
-#include <linux/stddef.h>
-#include <linux/timer.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel_stat.h>
-#include <linux/usb.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/moduleparam.h>
-#include <linux/slab.h>
-#include "hisax.h"
-#include "hisax_if.h"
-#include "hfc_usb.h"
-
-static const char *hfcusb_revision =
- "$Revision: 2.3.2.24 $ $Date: 2007/10/14 08:40:29 $ ";
-
-/* Hisax debug support
- * debug flags defined in hfc_usb.h as HFCUSB_DBG_[*]
- */
-#define __debug_variable hfc_debug
-#include "hisax_debug.h"
-static u_int debug;
-module_param(debug, uint, 0);
-static int hfc_debug;
-
-
-/* private vendor specific data */
-typedef struct {
- __u8 led_scheme; // led display scheme
- signed short led_bits[8]; // array of 8 possible LED bitmask settings
- char *vend_name; // device name
-} hfcsusb_vdata;
-
-/* VID/PID device list */
-static const struct usb_device_id hfcusb_idtab[] = {
- {
- USB_DEVICE(0x0959, 0x2bd0),
- .driver_info = (unsigned long) &((hfcsusb_vdata)
- {LED_OFF, {4, 0, 2, 1},
- "ISDN USB TA (Cologne Chip HFC-S USB based)"}),
- },
- {
- USB_DEVICE(0x0675, 0x1688),
- .driver_info = (unsigned long) &((hfcsusb_vdata)
- {LED_SCHEME1, {1, 2, 0, 0},
- "DrayTek miniVigor 128 USB ISDN TA"}),
- },
- {
- USB_DEVICE(0x07b0, 0x0007),
- .driver_info = (unsigned long) &((hfcsusb_vdata)
- {LED_SCHEME1, {0x80, -64, -32, -16},
- "Billion tiny USB ISDN TA 128"}),
- },
- {
- USB_DEVICE(0x0742, 0x2008),
- .driver_info = (unsigned long) &((hfcsusb_vdata)
- {LED_SCHEME1, {4, 0, 2, 1},
- "Stollmann USB TA"}),
- },
- {
- USB_DEVICE(0x0742, 0x2009),
- .driver_info = (unsigned long) &((hfcsusb_vdata)
- {LED_SCHEME1, {4, 0, 2, 1},
- "Aceex USB ISDN TA"}),
- },
- {
- USB_DEVICE(0x0742, 0x200A),
- .driver_info = (unsigned long) &((hfcsusb_vdata)
- {LED_SCHEME1, {4, 0, 2, 1},
- "OEM USB ISDN TA"}),
- },
- {
- USB_DEVICE(0x08e3, 0x0301),
- .driver_info = (unsigned long) &((hfcsusb_vdata)
- {LED_SCHEME1, {2, 0, 1, 4},
- "Olitec USB RNIS"}),
- },
- {
- USB_DEVICE(0x07fa, 0x0846),
- .driver_info = (unsigned long) &((hfcsusb_vdata)
- {LED_SCHEME1, {0x80, -64, -32, -16},
- "Bewan Modem RNIS USB"}),
- },
- {
- USB_DEVICE(0x07fa, 0x0847),
- .driver_info = (unsigned long) &((hfcsusb_vdata)
- {LED_SCHEME1, {0x80, -64, -32, -16},
- "Djinn Numeris USB"}),
- },
- {
- USB_DEVICE(0x07b0, 0x0006),
- .driver_info = (unsigned long) &((hfcsusb_vdata)
- {LED_SCHEME1, {0x80, -64, -32, -16},
- "Twister ISDN TA"}),
- },
- {
- USB_DEVICE(0x071d, 0x1005),
- .driver_info = (unsigned long) &((hfcsusb_vdata)
- {LED_SCHEME1, {0x02, 0, 0x01, 0x04},
- "Eicon DIVA USB 4.0"}),
- },
- { }
-};
-
-/* structure defining input+output fifos (interrupt/bulk mode) */
-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_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 {
- /* 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, /* handles for control pipe */
- ctrl_out_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 disc_flag; /* TRUE if device was disonnected to avoid some USB actions */
- 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 */
- 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 old_led_state, led_state;
-
- 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 */
-
- 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 */
-} hfcusb_data;
-
-
-static void collect_rx_frame(usb_fifo *fifo, __u8 *data, int len,
- int finish);
-
-static inline const char *
-symbolic(struct hfcusb_symbolic_list list[], const int num)
-{
- int i;
- for (i = 0; list[i].name != NULL; i++)
- if (list[i].num == num)
- return (list[i].name);
- return "<unknown ERROR>";
-}
-
-static void
-ctrl_start_transfer(hfcusb_data *hfc)
-{
- 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 =
- cpu_to_le16(hfc->ctrl_buff[hfc->ctrl_out_idx].hfc_reg);
- hfc->ctrl_write.wValue =
- cpu_to_le16(hfc->ctrl_buff[hfc->ctrl_out_idx].reg_val);
-
- usb_submit_urb(hfc->ctrl_urb, GFP_ATOMIC); /* start transfer */
- }
-} /* ctrl_start_transfer */
-
-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 */
- 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);
-}
-
-static void
-ctrl_complete(struct urb *urb)
-{
- hfcusb_data *hfc = (hfcusb_data *) urb->context;
-
- urb->dev = hfc->dev;
- if (hfc->ctrl_cnt) {
- 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 */
- }
-}
-
-/* write led data to auxport & invert if necessary */
-static void
-write_led(hfcusb_data *hfc, __u8 led_state)
-{
- if (led_state != hfc->old_led_state) {
- hfc->old_led_state = led_state;
- queue_control_request(hfc, HFCUSB_P_DATA, led_state, 1);
- }
-}
-
-static void
-set_led_bit(hfcusb_data *hfc, signed short led_bits, int on)
-{
- if (on) {
- if (led_bits < 0)
- hfc->led_state &= ~abs(led_bits);
- else
- hfc->led_state |= led_bits;
- } else {
- if (led_bits < 0)
- hfc->led_state |= abs(led_bits);
- else
- hfc->led_state &= ~led_bits;
- }
-}
-
-/* handle LED requests */
-static void
-handle_led(hfcusb_data *hfc, int event)
-{
- hfcsusb_vdata *driver_info =
- (hfcsusb_vdata *) hfcusb_idtab[hfc->vend_idx].driver_info;
-
- /* if no scheme -> no LED action */
- if (driver_info->led_scheme == LED_OFF)
- return;
-
- switch (event) {
- case LED_POWER_ON:
- set_led_bit(hfc, driver_info->led_bits[0], 1);
- set_led_bit(hfc, driver_info->led_bits[1], 0);
- set_led_bit(hfc, driver_info->led_bits[2], 0);
- set_led_bit(hfc, driver_info->led_bits[3], 0);
- break;
- case LED_POWER_OFF:
- set_led_bit(hfc, driver_info->led_bits[0], 0);
- set_led_bit(hfc, driver_info->led_bits[1], 0);
- set_led_bit(hfc, driver_info->led_bits[2], 0);
- set_led_bit(hfc, driver_info->led_bits[3], 0);
- break;
- case LED_S0_ON:
- set_led_bit(hfc, driver_info->led_bits[1], 1);
- break;
- case LED_S0_OFF:
- set_led_bit(hfc, driver_info->led_bits[1], 0);
- break;
- case LED_B1_ON:
- set_led_bit(hfc, driver_info->led_bits[2], 1);
- break;
- case LED_B1_OFF:
- set_led_bit(hfc, driver_info->led_bits[2], 0);
- break;
- case LED_B2_ON:
- set_led_bit(hfc, driver_info->led_bits[3], 1);
- break;
- case LED_B2_OFF:
- set_led_bit(hfc, driver_info->led_bits[3], 0);
- break;
- }
- write_led(hfc, hfc->led_state);
-}
-
-/* ISDN l1 timer T3 expires */
-static void
-l1_timer_expire_t3(struct timer_list *t)
-{
- hfcusb_data *hfc = from_timer(hfc, t, t3_timer);
- hfc->d_if.ifc.l1l2(&hfc->d_if.ifc, PH_DEACTIVATE | INDICATION,
- NULL);
-
- DBG(HFCUSB_DBG_STATES,
- "HFC-S USB: PH_DEACTIVATE | INDICATION sent (T3 expire)");
-
- hfc->l1_activated = 0;
- handle_led(hfc, LED_S0_OFF);
- /* deactivate : */
- queue_control_request(hfc, HFCUSB_STATES, 0x10, 1);
- queue_control_request(hfc, HFCUSB_STATES, 3, 1);
-}
-
-/* ISDN l1 timer T4 expires */
-static void
-l1_timer_expire_t4(struct timer_list *t)
-{
- hfcusb_data *hfc = from_timer(hfc, t, t4_timer);
- hfc->d_if.ifc.l1l2(&hfc->d_if.ifc, PH_DEACTIVATE | INDICATION,
- NULL);
-
- DBG(HFCUSB_DBG_STATES,
- "HFC-S USB: PH_DEACTIVATE | INDICATION sent (T4 expire)");
-
- hfc->l1_activated = 0;
- handle_led(hfc, LED_S0_OFF);
-}
-
-/* S0 state changed */
-static void
-s0_state_handler(hfcusb_data *hfc, __u8 state)
-{
- __u8 old_state;
-
- old_state = hfc->l1_state;
- if (state == old_state || state < 1 || state > 8)
- return;
-
- DBG(HFCUSB_DBG_STATES, "HFC-S USB: S0 statechange(%d -> %d)",
- old_state, state);
-
- if (state < 4 || state == 7 || state == 8) {
- if (timer_pending(&hfc->t3_timer))
- del_timer(&hfc->t3_timer);
- DBG(HFCUSB_DBG_STATES, "HFC-S USB: T3 deactivated");
- }
- if (state >= 7) {
- if (timer_pending(&hfc->t4_timer))
- del_timer(&hfc->t4_timer);
- DBG(HFCUSB_DBG_STATES, "HFC-S USB: T4 deactivated");
- }
-
- if (state == 7 && !hfc->l1_activated) {
- hfc->d_if.ifc.l1l2(&hfc->d_if.ifc,
- PH_ACTIVATE | INDICATION, NULL);
- DBG(HFCUSB_DBG_STATES, "HFC-S USB: PH_ACTIVATE | INDICATION sent");
- hfc->l1_activated = 1;
- handle_led(hfc, LED_S0_ON);
- } else if (state <= 3 /* && activated */) {
- if (old_state == 7 || old_state == 8) {
- DBG(HFCUSB_DBG_STATES, "HFC-S USB: T4 activated");
- if (!timer_pending(&hfc->t4_timer)) {
- hfc->t4_timer.expires =
- jiffies + (HFC_TIMER_T4 * HZ) / 1000;
- add_timer(&hfc->t4_timer);
- }
- } else {
- hfc->d_if.ifc.l1l2(&hfc->d_if.ifc,
- PH_DEACTIVATE | INDICATION,
- NULL);
- DBG(HFCUSB_DBG_STATES,
- "HFC-S USB: PH_DEACTIVATE | INDICATION sent");
- hfc->l1_activated = 0;
- handle_led(hfc, LED_S0_OFF);
- }
- }
- hfc->l1_state = state;
-}
-
-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)
-{
- int k;
-
- usb_fill_int_urb(urb, dev, pipe, buf, packet_size * num_packets,
- complete, context, interval);
-
- urb->number_of_packets = num_packets;
- urb->transfer_flags = URB_ISO_ASAP;
- urb->actual_length = 0;
- 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;
- }
-}
-
-/* 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;
-
- DBG(HFCUSB_DBG_INIT, "HFC-S USB: starting ISO-URBs for fifo:%d\n",
- fifo->fifonum);
-
- /* 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, GFP_KERNEL);
- if (!(fifo->iso[i].purb)) {
- printk(KERN_INFO
- "alloc urb for fifo %i failed!!!",
- fifo->fifonum);
- }
- 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;
- }
- } else {
- printk(KERN_INFO
- "HFC-S USB: ISO Buffer size to small!\n");
- }
- }
- fifo->bit_line = BITLINE_INF;
-
- errcode = usb_submit_urb(fifo->iso[i].purb, GFP_KERNEL);
- fifo->active = (errcode >= 0) ? 1 : 0;
- if (errcode < 0)
- printk(KERN_INFO "HFC-S USB: usb_submit_urb URB nr:%d, error(%i): '%s'\n",
- i, errcode, symbolic(urb_errlist, errcode));
- }
- return (fifo->active);
-}
-
-/* stops running iso chain and frees their pending urbs */
-static void
-stop_isoc_chain(usb_fifo *fifo)
-{
- int i;
-
- for (i = 0; i < 2; i++) {
- if (fifo->iso[i].purb) {
- DBG(HFCUSB_DBG_INIT,
- "HFC-S USB: Stopping iso chain for fifo %i.%i",
- fifo->fifonum, i);
- usb_kill_urb(fifo->iso[i].purb);
- usb_free_urb(fifo->iso[i].purb);
- fifo->iso[i].purb = NULL;
- }
- }
-
- usb_kill_urb(fifo->urb);
- usb_free_urb(fifo->urb);
- fifo->urb = NULL;
- fifo->active = 0;
-}
-
-/* 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
-};
-
-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;
- int frame_complete, transp_mode, fifon, status;
- __u8 threshbit;
-
- fifon = fifo->fifonum;
- status = urb->status;
-
- tx_offset = 0;
-
- /* ISO transfer only partially completed,
- look at individual frame status for details */
- if (status == -EXDEV) {
- DBG(HFCUSB_DBG_VERBOSE_USB, "HFC-S USB: tx_iso_complete with -EXDEV"
- ", urb->status %d, fifonum %d\n",
- status, fifon);
-
- for (k = 0; k < iso_packets[fifon]; ++k) {
- errcode = urb->iso_frame_desc[k].status;
- if (errcode)
- DBG(HFCUSB_DBG_VERBOSE_USB, "HFC-S USB: tx_iso_complete "
- "packet %i, status: %i\n",
- k, errcode);
- }
-
- // clear status, so go on with ISO transfers
- status = 0;
- }
-
- if (fifo->active && !status) {
- transp_mode = 0;
- if (fifon < 4 && hfc->b_mode[fifon / 2] == L1_MODE_TRANS)
- transp_mode = 1;
-
- /* is FifoFull-threshold set for our channel? */
- threshbit = (hfc->threshold_mask & (1 << fifon));
- num_isoc_packets = iso_packets[fifon];
-
- /* predict dataflow to avoid fifo overflow */
- if (fifon >= HFCUSB_D_TX) {
- sink = (threshbit) ? SINK_DMIN : SINK_DMAX;
- } else {
- sink = (threshbit) ? SINK_MIN : SINK_MAX;
- }
- 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 = 0;
-
- /* Generate next ISO Packets */
- for (k = 0; k < num_isoc_packets; ++k) {
- if (fifo->skbuff) {
- len = fifo->skbuff->len;
- /* we lower data margin every msec */
- fifo->bit_line -= sink;
- current_len = (0 - fifo->bit_line) / 8;
- /* maximum 15 byte for every ISO packet makes our life easier */
- if (current_len > 14)
- current_len = 14;
- current_len =
- (len <=
- current_len) ? len : current_len;
- /* how much bit do we put on the line? */
- fifo->bit_line += current_len * 8;
-
- context_iso_urb->buffer[tx_offset] = 0;
- if (current_len == len) {
- if (!transp_mode) {
- /* here frame completion */
- context_iso_urb->
- buffer[tx_offset] = 1;
- /* add 2 byte flags and 16bit CRC at end of ISDN frame */
- fifo->bit_line += 32;
- }
- frame_complete = 1;
- }
-
- 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);
- } else {
- 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;
- }
- }
-
- if (frame_complete) {
- fifo->delete_flg = 1;
- fifo->hif->l1l2(fifo->hif,
- PH_DATA | CONFIRM,
- (void *) (unsigned long) fifo->skbuff->
- truesize);
- if (fifo->skbuff && fifo->delete_flg) {
- dev_kfree_skb_any(fifo->skbuff);
- fifo->skbuff = NULL;
- fifo->delete_flg = 0;
- }
- frame_complete = 0;
- }
- }
- errcode = usb_submit_urb(urb, GFP_ATOMIC);
- if (errcode < 0) {
- printk(KERN_INFO
- "HFC-S USB: error submitting ISO URB: %d\n",
- errcode);
- }
- } else {
- if (status && !hfc->disc_flag) {
- printk(KERN_INFO
- "HFC-S USB: tx_iso_complete: error(%i): '%s', fifonum=%d\n",
- status, symbolic(urb_errlist, status), fifon);
- }
- }
-}
-
-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, maxlen,
- status;
- unsigned int iso_status;
- __u8 *buf;
- static __u8 eof[8];
-
- fifon = fifo->fifonum;
- status = urb->status;
-
- if (urb->status == -EOVERFLOW) {
- DBG(HFCUSB_DBG_VERBOSE_USB,
- "HFC-USB: ignoring USB DATAOVERRUN fifo(%i)", fifon);
- status = 0;
- }
-
- /* ISO transfer only partially completed,
- look at individual frame status for details */
- if (status == -EXDEV) {
- DBG(HFCUSB_DBG_VERBOSE_USB, "HFC-S USB: rx_iso_complete with -EXDEV "
- "urb->status %d, fifonum %d\n",
- status, fifon);
- status = 0;
- }
-
- if (fifo->active && !status) {
- num_isoc_packets = iso_packets[fifon];
- maxlen = fifo->usb_packet_maxlen;
- 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;
- iso_status = urb->iso_frame_desc[k].status;
-
- if (iso_status && !hfc->disc_flag)
- DBG(HFCUSB_DBG_VERBOSE_USB,
- "HFC-S USB: rx_iso_complete "
- "ISO packet %i, status: %i\n",
- k, iso_status);
-
- if (fifon == HFCUSB_D_RX) {
- DBG(HFCUSB_DBG_VERBOSE_USB,
- "HFC-S USB: ISO-D-RX lst_urblen:%2d "
- "act_urblen:%2d max-urblen:%2d EOF:0x%0x",
- fifo->last_urblen, len, maxlen,
- eof[5]);
-
- DBG_PACKET(HFCUSB_DBG_VERBOSE_USB, buf, len);
- }
-
- if (fifo->last_urblen != maxlen) {
- /* the threshold mask is in the 2nd status byte */
- hfc->threshold_mask = buf[1];
- /* care for L1 state only for D-Channel
- to avoid overlapped iso completions */
- if (fifon == HFCUSB_D_RX) {
- /* the S0 state is in the upper half
- of the 1st status byte */
- s0_state_handler(hfc, buf[0] >> 4);
- }
- eof[fifon] = buf[0] & 1;
- if (len > 2)
- collect_rx_frame(fifo, buf + 2,
- len - 2,
- (len < maxlen) ?
- eof[fifon] : 0);
- } else {
- collect_rx_frame(fifo, buf, len,
- (len <
- maxlen) ? eof[fifon] :
- 0);
- }
- fifo->last_urblen = len;
- }
-
- 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, GFP_ATOMIC);
- if (errcode < 0) {
- printk(KERN_ERR
- "HFC-S USB: error submitting ISO URB: %d\n",
- errcode);
- }
- } else {
- if (status && !hfc->disc_flag) {
- printk(KERN_ERR
- "HFC-S USB: rx_iso_complete : "
- "urb->status %d, fifonum %d\n",
- status, fifon);
- }
- }
-}
-
-/* collect rx data from INT- and ISO-URBs */
-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 = 1;
-
- if (!fifo->skbuff) {
- fifo->skbuff = dev_alloc_skb(fifo->max_size + 3);
- if (!fifo->skbuff) {
- printk(KERN_ERR
- "HFC-S USB: cannot allocate buffer for fifo(%d)\n",
- fifon);
- return;
- }
- }
- if (len) {
- if (fifo->skbuff->len + len < fifo->max_size) {
- skb_put_data(fifo->skbuff, data, len);
- } else {
- DBG(HFCUSB_DBG_FIFO_ERR,
- "HCF-USB: got frame exceeded fifo->max_size(%d) fifo(%d)",
- fifo->max_size, fifon);
- DBG_SKB(HFCUSB_DBG_VERBOSE_USB, fifo->skbuff);
- skb_trim(fifo->skbuff, 0);
- }
- }
- if (transp_mode && fifo->skbuff->len >= 128) {
- fifo->hif->l1l2(fifo->hif, PH_DATA | INDICATION,
- fifo->skbuff);
- fifo->skbuff = NULL;
- return;
- }
- /* we have a complete hdlc packet */
- if (finish) {
- if (fifo->skbuff->len > 3 &&
- !fifo->skbuff->data[fifo->skbuff->len - 1]) {
-
- if (fifon == HFCUSB_D_RX) {
- DBG(HFCUSB_DBG_DCHANNEL,
- "HFC-S USB: D-RX len(%d)", fifo->skbuff->len);
- DBG_SKB(HFCUSB_DBG_DCHANNEL, fifo->skbuff);
- }
-
- /* remove CRC & status */
- skb_trim(fifo->skbuff, fifo->skbuff->len - 3);
- 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 {
- DBG(HFCUSB_DBG_FIFO_ERR,
- "HFC-S USB: ERROR frame len(%d) fifo(%d)",
- fifo->skbuff->len, fifon);
- DBG_SKB(HFCUSB_DBG_VERBOSE_USB, fifo->skbuff);
- skb_trim(fifo->skbuff, 0);
- }
- }
-}
-
-static void
-rx_int_complete(struct urb *urb)
-{
- int len;
- int status;
- __u8 *buf, maxlen, fifon;
- usb_fifo *fifo = (usb_fifo *) urb->context;
- hfcusb_data *hfc = fifo->hfc;
- static __u8 eof[8];
-
- urb->dev = hfc->dev; /* security init */
-
- fifon = fifo->fifonum;
- if ((!fifo->active) || (urb->status)) {
- DBG(HFCUSB_DBG_INIT, "HFC-S USB: RX-Fifo %i is going down (%i)",
- fifon, urb->status);
-
- fifo->urb->interval = 0; /* cancel automatic rescheduling */
- if (fifo->skbuff) {
- dev_kfree_skb_any(fifo->skbuff);
- fifo->skbuff = NULL;
- }
- return;
- }
- len = urb->actual_length;
- buf = fifo->buffer;
- maxlen = fifo->usb_packet_maxlen;
-
- if (fifon == HFCUSB_D_RX) {
- DBG(HFCUSB_DBG_VERBOSE_USB,
- "HFC-S USB: INT-D-RX lst_urblen:%2d "
- "act_urblen:%2d max-urblen:%2d EOF:0x%0x",
- fifo->last_urblen, len, maxlen,
- eof[5]);
- DBG_PACKET(HFCUSB_DBG_VERBOSE_USB, buf, len);
- }
-
- 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 */
- s0_state_handler(hfc, buf[0] >> 4);
- eof[fifon] = buf[0] & 1;
- /* if we have more than the 2 status bytes -> collect data */
- if (len > 2)
- collect_rx_frame(fifo, buf + 2,
- urb->actual_length - 2,
- (len < maxlen) ? eof[fifon] : 0);
- } else {
- collect_rx_frame(fifo, buf, urb->actual_length,
- (len < maxlen) ? eof[fifon] : 0);
- }
- fifo->last_urblen = urb->actual_length;
- status = usb_submit_urb(urb, GFP_ATOMIC);
- if (status) {
- printk(KERN_INFO
- "HFC-S USB: %s error resubmitting URB fifo(%d)\n",
- __func__, fifon);
- }
-}
-
-/* start initial INT-URB for certain fifo */
-static void
-start_int_fifo(usb_fifo *fifo)
-{
- int errcode;
-
- DBG(HFCUSB_DBG_INIT, "HFC-S USB: starting RX INT-URB for fifo:%d\n",
- fifo->fifonum);
-
- if (!fifo->urb) {
- fifo->urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!fifo->urb)
- return;
- }
- usb_fill_int_urb(fifo->urb, fifo->hfc->dev, fifo->pipe,
- fifo->buffer, fifo->usb_packet_maxlen,
- rx_int_complete, fifo, fifo->intervall);
- fifo->active = 1; /* must be marked active */
- errcode = usb_submit_urb(fifo->urb, GFP_KERNEL);
- if (errcode) {
- printk(KERN_ERR "HFC-S USB: submit URB error(%s): status:%i\n",
- __func__, errcode);
- fifo->active = 0;
- fifo->skbuff = NULL;
- }
-}
-
-static void
-setup_bchannel(hfcusb_data *hfc, int channel, int mode)
-{
- __u8 val, idx_table[2] = { 0, 2 };
-
- if (hfc->disc_flag) {
- return;
- }
- DBG(HFCUSB_DBG_STATES, "HFC-S USB: setting channel %d to mode %d",
- channel, mode);
- 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 */
-
- /* set FIFO to transmit register */
- queue_control_request(hfc, HFCUSB_FIFO, idx_table[channel], 1);
- queue_control_request(hfc, HFCUSB_CON_HDLC, val, 1);
- /* reset fifo */
- queue_control_request(hfc, HFCUSB_INC_RES_F, 2, 1);
- /* set FIFO to receive register */
- queue_control_request(hfc, HFCUSB_FIFO, idx_table[channel] + 1, 1);
- queue_control_request(hfc, HFCUSB_CON_HDLC, val, 1);
- /* reset fifo */
- queue_control_request(hfc, HFCUSB_INC_RES_F, 2, 1);
-
- 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);
- } else {
- if (channel)
- handle_led(hfc, LED_B2_ON);
- else
- handle_led(hfc, LED_B1_ON);
- }
-}
-
-static 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) {
- DBG(HFCUSB_DBG_STATES,
- "HFC_USB: hfc_usb_d_l2l1 D-chan: PH_ACTIVATE | REQUEST");
-
- if (hfc->l1_state != 3
- && hfc->l1_state != 7) {
- hfc->d_if.ifc.l1l2(&hfc->d_if.ifc,
- PH_DEACTIVATE |
- INDICATION,
- NULL);
- DBG(HFCUSB_DBG_STATES,
- "HFC-S USB: PH_DEACTIVATE | INDICATION sent (not state 3 or 7)");
- } else {
- if (hfc->l1_state == 7) { /* l1 already active */
- hfc->d_if.ifc.l1l2(&hfc->
- d_if.
- ifc,
- PH_ACTIVATE
- |
- INDICATION,
- NULL);
- DBG(HFCUSB_DBG_STATES,
- "HFC-S USB: PH_ACTIVATE | INDICATION sent again ;)");
- } else {
- /* force sending sending INFO1 */
- queue_control_request(hfc,
- HFCUSB_STATES,
- 0x14,
- 1);
- mdelay(1);
- /* start l1 activation */
- queue_control_request(hfc,
- HFCUSB_STATES,
- 0x04,
- 1);
- if (!timer_pending
- (&hfc->t3_timer)) {
- hfc->t3_timer.
- expires =
- jiffies +
- (HFC_TIMER_T3 *
- HZ) / 1000;
- add_timer(&hfc->
- t3_timer);
- }
- }
- }
- } else {
- DBG(HFCUSB_DBG_STATES,
- "HFC_USB: hfc_usb_d_l2l1 B-chan: PH_ACTIVATE | REQUEST");
- setup_bchannel(hfc,
- (fifo->fifonum ==
- HFCUSB_B1_TX) ? 0 : 1,
- (long) arg);
- fifo->hif->l1l2(fifo->hif,
- PH_ACTIVATE | INDICATION,
- NULL);
- }
- break;
- case PH_DEACTIVATE | REQUEST:
- if (fifo->fifonum == HFCUSB_D_TX) {
- DBG(HFCUSB_DBG_STATES,
- "HFC_USB: hfc_usb_d_l2l1 D-chan: PH_DEACTIVATE | REQUEST");
- } else {
- DBG(HFCUSB_DBG_STATES,
- "HFC_USB: hfc_usb_d_l2l1 Bx-chan: PH_DEACTIVATE | REQUEST");
- setup_bchannel(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);
- fifo->skbuff = NULL;
- fifo->delete_flg = 0;
- }
- fifo->skbuff = arg; /* we have a new buffer */
- break;
- default:
- DBG(HFCUSB_DBG_STATES,
- "HFC_USB: hfc_usb_d_l2l1: unknown state : %#x", pr);
- break;
- }
-}
-
-/* initial init HFC-S USB chip registers, HiSax interface, USB URBs */
-static int
-hfc_usb_init(hfcusb_data *hfc)
-{
- usb_fifo *fifo;
- int i;
- u_char b;
- struct hisax_b_if *p_b_if[2];
-
- /* check the chip id */
- if (read_usb(hfc, HFCUSB_CHIP_ID, &b) != 1) {
- printk(KERN_INFO "HFC-USB: cannot read chip id\n");
- return (1);
- }
- if (b != HFCUSB_CHIPID) {
- printk(KERN_INFO "HFC-S USB: Invalid chip id 0x%02x\n", b);
- return (1);
- }
-
- /* first set the needed config, interface and alternate */
- usb_set_interface(hfc->dev, hfc->if_used, hfc->alt_used);
-
- /* do Chip reset */
- write_usb(hfc, HFCUSB_CIRM, 8);
- /* aux = output, reset off */
- write_usb(hfc, HFCUSB_CIRM, 0x10);
-
- /* set USB_SIZE to match wMaxPacketSize for INT or BULK transfers */
- write_usb(hfc, HFCUSB_USB_SIZE,
- (hfc->packet_size / 8) | ((hfc->packet_size / 8) << 4));
-
- /* set USB_SIZE_I to match wMaxPacketSize for ISO transfers */
- write_usb(hfc, HFCUSB_USB_SIZE_I, hfc->iso_packet_size);
-
- /* enable PCM/GCI 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_usb(hfc, HFCUSB_F_THRES,
- (HFCUSB_TX_THRESHOLD /
- 8) | ((HFCUSB_RX_THRESHOLD / 8) << 4));
-
- 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;
- /* set 2 bit for D- & E-channel */
- write_usb(hfc, HFCUSB_HDLC_PAR,
- ((i <= HFCUSB_B2_RX) ? 0 : 2));
- /* rx hdlc, enable IFF for D-channel */
- write_usb(hfc, HFCUSB_CON_HDLC,
- ((i == HFCUSB_D_TX) ? 0x09 : 0x08));
- write_usb(hfc, HFCUSB_INC_RES_F, 2); /* reset the fifo */
- }
-
- 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 = 0;
- hfc->disc_flag = 0;
- hfc->led_state = 0;
- hfc->old_led_state = 0;
-
- /* init the t3 timer */
- timer_setup(&hfc->t3_timer, l1_timer_expire_t3, 0);
-
- /* init the t4 timer */
- timer_setup(&hfc->t4_timer, l1_timer_expire_t4, 0);
-
- /* init the background machinery for control requests */
- hfc->ctrl_read.bRequestType = 0xc0;
- hfc->ctrl_read.bRequest = 1;
- hfc->ctrl_read.wLength = cpu_to_le16(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 Modul to upper Hisax Layers */
- 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];
- }
- /* default Prot: EURO ISDN, should be a module_param */
- hfc->protocol = 2;
- i = hisax_register(&hfc->d_if, p_b_if, "hfc_usb", hfc->protocol);
- if (i) {
- printk(KERN_INFO "HFC-S USB: hisax_register -> %d\n", i);
- return i;
- }
-
-#ifdef CONFIG_HISAX_DEBUG
- hfc_debug = debug;
-#endif
-
- 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);
- if (hfc->fifos[HFCUSB_PCM_RX].pipe)
- start_int_fifo(hfc->fifos + HFCUSB_PCM_RX);
- start_int_fifo(hfc->fifos + HFCUSB_B1_RX);
- start_int_fifo(hfc->fifos + HFCUSB_B2_RX);
- }
- /* 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);
-}
-
-/* initial callback for each plugged USB device */
-static int
-hfc_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
-{
- struct usb_device *dev = interface_to_usbdev(intf);
- hfcusb_data *context;
- struct usb_host_interface *iface = intf->cur_altsetting;
- struct usb_host_interface *iface_used = NULL;
- struct usb_host_endpoint *ep;
- int ifnum = iface->desc.bInterfaceNumber;
- 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;
- hfcsusb_vdata *driver_info;
-
- vend_idx = 0xffff;
- for (i = 0; hfcusb_idtab[i].idVendor; i++) {
- if ((le16_to_cpu(dev->descriptor.idVendor) == hfcusb_idtab[i].idVendor)
- && (le16_to_cpu(dev->descriptor.idProduct) == hfcusb_idtab[i].idProduct)) {
- vend_idx = i;
- continue;
- }
- }
-
- printk(KERN_INFO
- "HFC-S USB: probing interface(%d) actalt(%d) minor(%d)\n",
- ifnum, iface->desc.bAlternateSetting, intf->minor);
-
- if (vend_idx != 0xffff) {
- /* if vendor and product ID is OK, start probing alternate settings */
- 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;
- probe_alt_setting = iface->desc.bAlternateSetting;
- cfg_used = 0;
-
- /* check for config EOL element */
- while (validconf[cfg_used][0]) {
- cfg_found = 1;
- vcf = validconf[cfg_used];
- /* first endpoint descriptor */
- ep = iface->endpoint;
-
- memcpy(cmptbl, vcf, 16 * sizeof(int));
-
- /* check for all endpoints in this alternate setting */
- for (i = 0; i < iface->desc.bNumEndpoints;
- i++) {
- ep_addr =
- ep->desc.bEndpointAddress;
- /* get endpoint base */
- idx = ((ep_addr & 0x7f) - 1) * 2;
- if (ep_addr & 0x80)
- idx++;
- attr = ep->desc.bmAttributes;
- if (cmptbl[idx] == EP_NUL) {
- cfg_found = 0;
- }
- 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->desc.bInterval < vcf[17])) {
- cfg_found = 0;
- }
- ep++;
- }
- for (i = 0; i < 16; 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 = 0;
- }
- if (cfg_found) {
- if (cfg_used < small_match) {
- small_match = cfg_used;
- alt_used =
- probe_alt_setting;
- iface_used = iface;
- }
- }
- cfg_used++;
- }
- alt_idx++;
- } /* (alt_idx < intf->num_altsetting) */
-
- /* found a valid USB Ta Endpint config */
- if (small_match != 0xffff) {
- iface = iface_used;
- if (!(context = kzalloc(sizeof(hfcusb_data), GFP_KERNEL)))
- return (-ENOMEM); /* got no mem */
-
- ep = iface->endpoint;
- vcf = validconf[small_match];
-
- for (i = 0; i < iface->desc.bNumEndpoints; i++) {
- ep_addr = ep->desc.bEndpointAddress;
- /* get endpoint base */
- idx = ((ep_addr & 0x7f) - 1) * 2;
- if (ep_addr & 0x80)
- idx++;
- cidx = idx & 7;
- attr = ep->desc.bmAttributes;
-
- /* init 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->desc.
- bEndpointAddress);
- context->
- fifos[cidx].
- usb_transfer_mode
- = USB_INT;
- packet_size =
- le16_to_cpu(ep->desc.wMaxPacketSize);
- break;
- case USB_ENDPOINT_XFER_BULK:
- if (ep_addr & 0x80)
- context->
- fifos
- [cidx].
- pipe =
- usb_rcvbulkpipe
- (dev,
- ep->
- desc.
- bEndpointAddress);
- else
- context->
- fifos
- [cidx].
- pipe =
- usb_sndbulkpipe
- (dev,
- ep->
- desc.
- bEndpointAddress);
- context->
- fifos[cidx].
- usb_transfer_mode
- = USB_BULK;
- packet_size =
- le16_to_cpu(ep->desc.wMaxPacketSize);
- break;
- case USB_ENDPOINT_XFER_ISOC:
- if (ep_addr & 0x80)
- context->
- fifos
- [cidx].
- pipe =
- usb_rcvisocpipe
- (dev,
- ep->
- desc.
- bEndpointAddress);
- else
- context->
- fifos
- [cidx].
- pipe =
- usb_sndisocpipe
- (dev,
- ep->
- desc.
- bEndpointAddress);
- context->
- fifos[cidx].
- usb_transfer_mode
- = USB_ISOC;
- iso_packet_size =
- le16_to_cpu(ep->desc.wMaxPacketSize);
- break;
- default:
- context->
- fifos[cidx].
- pipe = 0;
- } /* switch attribute */
-
- if (context->fifos[cidx].pipe) {
- context->fifos[cidx].
- fifonum = cidx;
- context->fifos[cidx].hfc =
- context;
- context->fifos[cidx].usb_packet_maxlen =
- le16_to_cpu(ep->desc.wMaxPacketSize);
- context->fifos[cidx].
- intervall =
- ep->desc.bInterval;
- context->fifos[cidx].
- skbuff = NULL;
- }
- }
- ep++;
- }
- 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);
-
- driver_info = (hfcsusb_vdata *)
- hfcusb_idtab[vend_idx].driver_info;
-
- context->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
-
- if (!context->ctrl_urb) {
- pr_warn("%s: No memory for control urb\n",
- driver_info->vend_name);
- kfree(context);
- return -ENOMEM;
- }
-
- pr_info("HFC-S USB: detected \"%s\"\n",
- driver_info->vend_name);
-
- DBG(HFCUSB_DBG_INIT,
- "HFC-S USB: Endpoint-Config: %s (if=%d alt=%d), E-Channel(%d)",
- conf_str[small_match], context->if_used,
- context->alt_used,
- validconf[small_match][18]);
-
- /* init the chip and register the driver */
- if (hfc_usb_init(context)) {
- usb_kill_urb(context->ctrl_urb);
- usb_free_urb(context->ctrl_urb);
- context->ctrl_urb = NULL;
- kfree(context);
- return (-EIO);
- }
- usb_set_intfdata(intf, context);
- return (0);
- }
- } else {
- printk(KERN_INFO
- "HFC-S USB: no valid vendor found in USB descriptor\n");
- }
- return (-EIO);
-}
-
-/* callback for unplugged USB device */
-static void
-hfc_usb_disconnect(struct usb_interface *intf)
-{
- hfcusb_data *context = usb_get_intfdata(intf);
- int i;
-
- handle_led(context, LED_POWER_OFF);
- schedule_timeout(HZ / 100);
-
- printk(KERN_INFO "HFC-S USB: device disconnect\n");
- context->disc_flag = 1;
- usb_set_intfdata(intf, NULL);
-
- if (timer_pending(&context->t3_timer))
- del_timer(&context->t3_timer);
- if (timer_pending(&context->t4_timer))
- del_timer(&context->t4_timer);
-
- /* 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]);
- DBG(HFCUSB_DBG_INIT,
- "HFC-S USB: %s stopping ISOC chain Fifo(%i)",
- __func__, i);
- }
- } else {
- if (context->fifos[i].active > 0) {
- context->fifos[i].active = 0;
- DBG(HFCUSB_DBG_INIT,
- "HFC-S USB: %s unlinking URB for Fifo(%i)",
- __func__, i);
- }
- usb_kill_urb(context->fifos[i].urb);
- usb_free_urb(context->fifos[i].urb);
- context->fifos[i].urb = NULL;
- }
- context->fifos[i].active = 0;
- }
- usb_kill_urb(context->ctrl_urb);
- usb_free_urb(context->ctrl_urb);
- context->ctrl_urb = NULL;
- hisax_unregister(&context->d_if);
- kfree(context); /* free our structure again */
-}
-
-static struct usb_driver hfc_drv = {
- .name = "hfc_usb",
- .id_table = hfcusb_idtab,
- .probe = hfc_usb_probe,
- .disconnect = hfc_usb_disconnect,
- .disable_hub_initiated_lpm = 1,
-};
-
-static void __exit
-hfc_usb_mod_exit(void)
-{
- usb_deregister(&hfc_drv); /* release our driver */
- printk(KERN_INFO "HFC-S USB: module removed\n");
-}
-
-static int __init
-hfc_usb_mod_init(void)
-{
- char revstr[30], datestr[30], dummy[30];
-#ifndef CONFIG_HISAX_DEBUG
- hfc_debug = debug;
-#endif
- sscanf(hfcusb_revision,
- "%s %s $ %s %s %s $ ", dummy, revstr,
- dummy, datestr, dummy);
- printk(KERN_INFO
- "HFC-S USB: driver module revision %s date %s loaded, (debug=%i)\n",
- revstr, datestr, debug);
- if (usb_register(&hfc_drv)) {
- printk(KERN_INFO
- "HFC-S USB: Unable to register HFC-S USB module at usb stack\n");
- return (-1); /* unable to register */
- }
- return (0);
-}
-
-module_init(hfc_usb_mod_init);
-module_exit(hfc_usb_mod_exit);
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
-MODULE_DEVICE_TABLE(usb, hfcusb_idtab);