| /* |
| * hfc_usb.c |
| * |
| * $Id: hfc_usb.c,v 4.36 2005/04/08 09:55:13 martinb1 Exp $ |
| * |
| * modular HiSax ISDN driver for Colognechip HFC-S USB chip |
| * |
| * Authors : Peter Sprenger (sprenger@moving-bytes.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 |
| * the Free Software Foundation; either version 2, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| * |
| * See Version Histroy at the bottom of this file |
| * |
| */ |
| |
| #include <linux/types.h> |
| #include <linux/stddef.h> |
| #include <linux/timer.h> |
| #include <linux/config.h> |
| #include <linux/init.h> |
| #include <linux/module.h> |
| #include <linux/kernel_stat.h> |
| #include <linux/usb.h> |
| #include <linux/kernel.h> |
| #include <linux/smp_lock.h> |
| #include <linux/sched.h> |
| #include "hisax.h" |
| #include "hisax_if.h" |
| #include "hfc_usb.h" |
| |
| static const char *hfcusb_revision = |
| "$Revision: 4.36 $ $Date: 2005/04/08 09:55:13 $ "; |
| |
| /* Hisax debug support |
| * use "modprobe debug=x" where x is bitfield of USB_DBG & ISDN_DBG |
| */ |
| #ifdef CONFIG_HISAX_DEBUG |
| #include <linux/moduleparam.h> |
| #define __debug_variable hfc_debug |
| #include "hisax_debug.h" |
| static u_int debug; |
| module_param(debug, uint, 0); |
| static int hfc_debug; |
| #endif |
| |
| /* 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; |
| |
| /****************************************/ |
| /* data defining the devices to be used */ |
| /****************************************/ |
| static struct usb_device_id hfcusb_idtab[] = { |
| { |
| .idVendor = 0x0959, |
| .idProduct = 0x2bd0, |
| .driver_info = (unsigned long) &((hfcsusb_vdata) |
| {LED_OFF, {4, 0, 2, 1}, |
| "ISDN USB TA (Cologne Chip HFC-S USB based)"}), |
| }, |
| { |
| .idVendor = 0x0675, |
| .idProduct = 0x1688, |
| .driver_info = (unsigned long) &((hfcsusb_vdata) |
| {LED_SCHEME1, {1, 2, 0, 0}, |
| "DrayTek miniVigor 128 USB ISDN TA"}), |
| }, |
| { |
| .idVendor = 0x07b0, |
| .idProduct = 0x0007, |
| .driver_info = (unsigned long) &((hfcsusb_vdata) |
| {LED_SCHEME1, {0x80, -64, -32, -16}, |
| "Billion tiny USB ISDN TA 128"}), |
| }, |
| { |
| .idVendor = 0x0742, |
| .idProduct = 0x2008, |
| .driver_info = (unsigned long) &((hfcsusb_vdata) |
| {LED_SCHEME1, {4, 0, 2, 1}, |
| "Stollmann USB TA"}), |
| }, |
| { |
| .idVendor = 0x0742, |
| .idProduct = 0x2009, |
| .driver_info = (unsigned long) &((hfcsusb_vdata) |
| {LED_SCHEME1, {4, 0, 2, 1}, |
| "Aceex USB ISDN TA"}), |
| }, |
| { |
| .idVendor = 0x0742, |
| .idProduct = 0x200A, |
| .driver_info = (unsigned long) &((hfcsusb_vdata) |
| {LED_SCHEME1, {4, 0, 2, 1}, |
| "OEM USB ISDN TA"}), |
| }, |
| { |
| .idVendor = 0x08e3, |
| .idProduct = 0x0301, |
| .driver_info = (unsigned long) &((hfcsusb_vdata) |
| {LED_SCHEME1, {2, 0, 1, 4}, |
| "Olitec USB RNIS"}), |
| }, |
| { |
| .idVendor = 0x07fa, |
| .idProduct = 0x0846, |
| .driver_info = (unsigned long) &((hfcsusb_vdata) |
| {LED_SCHEME1, {0x80, -64, -32, -16}, |
| "Bewan Modem RNIS USB"}), |
| }, |
| { |
| .idVendor = 0x07fa, |
| .idProduct = 0x0847, |
| .driver_info = (unsigned long) &((hfcsusb_vdata) |
| {LED_SCHEME1, {0x80, -64, -32, -16}, |
| "Djinn Numeris USB"}), |
| }, |
| { |
| .idVendor = 0x07b0, |
| .idProduct = 0x0006, |
| .driver_info = (unsigned long) &((hfcsusb_vdata) |
| {LED_SCHEME1, {0x80, -64, -32, -16}, |
| "Twister ISDN TA"}), |
| }, |
| }; |
| |
| |
| /***************************************************************/ |
| /* 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, 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 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, 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 */ |
| |
| 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 "<unkown ERROR>"; |
| } |
| |
| |
| /******************************************************/ |
| /* start next background transfer for control channel */ |
| /******************************************************/ |
| 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 = |
| hfc->ctrl_buff[hfc->ctrl_out_idx].hfc_reg; |
| hfc->ctrl_write.wValue = |
| hfc->ctrl_buff[hfc->ctrl_out_idx].reg_val; |
| |
| usb_submit_urb(hfc->ctrl_urb, GFP_ATOMIC); /* start transfer */ |
| } |
| } /* ctrl_start_transfer */ |
| |
| /************************************/ |
| /* queue a control transfer request */ |
| /* return 0 on success. */ |
| /************************************/ |
| 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); |
| } /* queue_control_request */ |
| |
| 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, struct pt_regs *regs) |
| { |
| hfcusb_data *hfc = (hfcusb_data *) urb->context; |
| ctrl_buft *buf; |
| |
| 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 */ |
| |
| /***************************************************/ |
| /* 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); |
| } |
| } |
| |
| /**************************/ |
| /* handle LED bits */ |
| /**************************/ |
| static void |
| set_led_bit(hfcusb_data * hfc, signed short led_bits, int unset) |
| { |
| if (unset) { |
| 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], |
| 0); |
| set_led_bit(hfc, driver_info->led_bits[1], |
| 1); |
| set_led_bit(hfc, driver_info->led_bits[2], |
| 1); |
| set_led_bit(hfc, driver_info->led_bits[3], |
| 1); |
| break; |
| case LED_POWER_OFF: /* no Power off handling */ |
| break; |
| case LED_S0_ON: |
| set_led_bit(hfc, driver_info->led_bits[1], |
| 0); |
| break; |
| case LED_S0_OFF: |
| set_led_bit(hfc, driver_info->led_bits[1], |
| 1); |
| break; |
| case LED_B1_ON: |
| set_led_bit(hfc, driver_info->led_bits[2], |
| 0); |
| break; |
| case LED_B1_OFF: |
| set_led_bit(hfc, driver_info->led_bits[2], |
| 1); |
| break; |
| case LED_B2_ON: |
| set_led_bit(hfc, driver_info->led_bits[3], |
| 0); |
| break; |
| case LED_B2_OFF: |
| set_led_bit(hfc, driver_info->led_bits[3], |
| 1); |
| break; |
| } |
| write_led(hfc, hfc->led_state); |
| } |
| |
| /********************************/ |
| /* called when timer t3 expires */ |
| /********************************/ |
| static void |
| l1_timer_expire_t3(hfcusb_data * hfc) |
| { |
| hfc->d_if.ifc.l1l2(&hfc->d_if.ifc, PH_DEACTIVATE | INDICATION, |
| NULL); |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, |
| "HFC-S USB: PH_DEACTIVATE | INDICATION sent (T3 expire)"); |
| #endif |
| hfc->l1_activated = FALSE; |
| handle_led(hfc, LED_S0_OFF); |
| /* deactivate : */ |
| queue_control_request(hfc, HFCUSB_STATES, 0x10, 1); |
| queue_control_request(hfc, HFCUSB_STATES, 3, 1); |
| } |
| |
| /********************************/ |
| /* called when timer t4 expires */ |
| /********************************/ |
| static void |
| l1_timer_expire_t4(hfcusb_data * hfc) |
| { |
| hfc->d_if.ifc.l1l2(&hfc->d_if.ifc, PH_DEACTIVATE | INDICATION, |
| NULL); |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, |
| "HFC-S USB: PH_DEACTIVATE | INDICATION sent (T4 expire)"); |
| #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; |
| if (state == old_state || state < 1 || state > 8) |
| return; |
| |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, "HFC-S USB: new S0 state:%d old_state:%d", state, |
| old_state); |
| #endif |
| if (state < 4 || state == 7 || state == 8) { |
| if (timer_pending(&hfc->t3_timer)) |
| del_timer(&hfc->t3_timer); |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, "HFC-S USB: T3 deactivated"); |
| #endif |
| } |
| if (state >= 7) { |
| if (timer_pending(&hfc->t4_timer)) |
| del_timer(&hfc->t4_timer); |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, "HFC-S USB: T4 deactivated"); |
| #endif |
| } |
| |
| if (state == 7 && !hfc->l1_activated) { |
| hfc->d_if.ifc.l1l2(&hfc->d_if.ifc, |
| PH_ACTIVATE | INDICATION, NULL); |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, "HFC-S USB: PH_ACTIVATE | INDICATION sent"); |
| #endif |
| hfc->l1_activated = TRUE; |
| handle_led(hfc, LED_S0_ON); |
| } else if (state <= 3 /* && activated */ ) { |
| if (old_state == 7 || old_state == 8) { |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, "HFC-S USB: T4 activated"); |
| #endif |
| 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); |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, |
| "HFC-S USB: PH_DEACTIVATE | INDICATION sent"); |
| #endif |
| hfc->l1_activated = FALSE; |
| handle_led(hfc, LED_S0_OFF); |
| } |
| } |
| 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) |
| { |
| int k; |
| |
| spin_lock_init(&urb->lock); |
| 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 = URB_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; |
| } |
| } |
| |
| /* 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; |
| |
| printk(KERN_INFO "HFC-S USB: starting ISO-chain for Fifo %i\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: %s URB nr:%d\n", |
| symbolic(urb_errlist, errcode), i); |
| }; |
| } |
| 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) { |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(USB_DBG, |
| "HFC-S USB: Stopping iso chain for fifo %i.%i", |
| fifo->fifonum, i); |
| #endif |
| usb_unlink_urb(fifo->iso[i].purb); |
| usb_free_urb(fifo->iso[i].purb); |
| fifo->iso[i].purb = NULL; |
| } |
| } |
| if (fifo->urb) { |
| usb_unlink_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 |
| }; |
| |
| /*****************************************************/ |
| /* transmit completion routine for all ISO tx fifos */ |
| /*****************************************************/ |
| static void |
| tx_iso_complete(struct urb *urb, struct pt_regs *regs) |
| { |
| 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; |
| __u8 threshtable[8] = { 1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80 }; |
| |
| fifon = fifo->fifonum; |
| status = urb->status; |
| |
| tx_offset = 0; |
| |
| if (fifo->active && !status) { |
| transp_mode = 0; |
| if (fifon < 4 && hfc->b_mode[fifon / 2] == L1_MODE_TRANS) |
| transp_mode = TRUE; |
| |
| /* is FifoFull-threshold set for our channel? */ |
| threshbit = threshtable[fifon] & hfc->threshold_mask; |
| 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 = FALSE; |
| /* 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 = TRUE; |
| } |
| |
| 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 = 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); |
| fifo->skbuff = NULL; |
| fifo->delete_flg = FALSE; |
| } |
| frame_complete = FALSE; |
| } |
| } |
| 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 : urb->status %s (%i), fifonum=%d\n", |
| symbolic(urb_errlist, status), status, |
| fifon); |
| } |
| } |
| } /* tx_iso_complete */ |
| |
| /*****************************************************/ |
| /* receive completion routine for all ISO tx fifos */ |
| /*****************************************************/ |
| static void |
| rx_iso_complete(struct urb *urb, struct pt_regs *regs) |
| { |
| 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]; |
| #ifdef CONFIG_HISAX_DEBUG |
| __u8 i; |
| #endif |
| |
| fifon = fifo->fifonum; |
| status = urb->status; |
| |
| if (urb->status == -EOVERFLOW) { |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(USB_DBG, |
| "HFC-USB: ignoring USB DATAOVERRUN for fifo %i \n", |
| fifon); |
| #endif |
| 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; |
| #ifdef CONFIG_HISAX_DEBUG |
| if (iso_status && !hfc->disc_flag) |
| DBG(USB_DBG, |
| "HFC-S USB: ISO packet failure - status:%x", |
| iso_status); |
| |
| if ((fifon == 5) && (debug > 1)) { |
| printk(KERN_INFO |
| "HFC-S USB: ISO-D-RX lst_urblen:%2d " |
| "act_urblen:%2d max-urblen:%2d " |
| "EOF:0x%0x DATA: ", |
| fifo->last_urblen, len, maxlen, |
| eof[5]); |
| for (i = 0; i < len; i++) |
| printk("%.2x ", buf[i]); |
| printk("\n"); |
| } |
| #endif |
| 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 == 5) { |
| /* the S0 state is in the upper half |
| of the 1st status byte */ |
| 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_INFO |
| "HFC-S USB: error submitting ISO URB: %d \n", |
| errcode); |
| } |
| } else { |
| if (status && !hfc->disc_flag) { |
| printk(KERN_INFO |
| "HFC-S USB: rx_iso_complete : " |
| "urb->status %d, fifonum %d\n", |
| 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; |
| #ifdef CONFIG_HISAX_DEBUG |
| int i; |
| #endif |
| fifon = fifo->fifonum; |
| transp_mode = 0; |
| if (fifon < 4 && hfc->b_mode[fifon / 2] == L1_MODE_TRANS) |
| transp_mode = TRUE; |
| |
| if (!fifo->skbuff) { |
| fifo->skbuff = dev_alloc_skb(fifo->max_size + 3); |
| if (!fifo->skbuff) { |
| printk(KERN_INFO |
| "HFC-S USB: cannot allocate buffer (dev_alloc_skb) fifo:%d\n", |
| fifon); |
| return; |
| } |
| } |
| if (len) { |
| if (fifo->skbuff->len + len < fifo->max_size) { |
| memcpy(skb_put(fifo->skbuff, len), data, len); |
| } else { |
| #ifdef CONFIG_HISAX_DEBUG |
| printk(KERN_INFO "HFC-S USB: "); |
| for (i = 0; i < 15; i++) |
| printk("%.2x ", |
| fifo->skbuff->data[fifo->skbuff-> |
| len - 15 + i]); |
| printk("\n"); |
| #endif |
| printk(KERN_INFO |
| "HCF-USB: got frame exceeded fifo->max_size:%d on fifo:%d\n", |
| fifo->max_size, fifon); |
| } |
| } |
| 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->data[fifo->skbuff->len - 1]) |
| && (fifo->skbuff->len > 3)) { |
| /* 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 { |
| if (fifo->skbuff->len > 3) { |
| printk(KERN_INFO |
| "HFC-S USB: got frame %d bytes but CRC ERROR on fifo:%d!!!\n", |
| fifo->skbuff->len, fifon); |
| #ifdef CONFIG_HISAX_DEBUG |
| if (debug > 1) { |
| printk(KERN_INFO "HFC-S USB: "); |
| for (i = 0; i < 15; i++) |
| printk("%.2x ", |
| fifo->skbuff-> |
| data[fifo->skbuff-> |
| len - 15 + i]); |
| printk("\n"); |
| } |
| #endif |
| } |
| #ifdef CONFIG_HISAX_DEBUG |
| else { |
| printk(KERN_INFO |
| "HFC-S USB: frame to small (%d bytes)!!!\n", |
| fifo->skbuff->len); |
| } |
| #endif |
| skb_trim(fifo->skbuff, 0); |
| } |
| } |
| } |
| |
| /***********************************************/ |
| /* receive completion routine for all rx fifos */ |
| /***********************************************/ |
| static void |
| rx_complete(struct urb *urb, struct pt_regs *regs) |
| { |
| int len; |
| int status; |
| __u8 *buf, maxlen, fifon; |
| usb_fifo *fifo = (usb_fifo *) urb->context; |
| hfcusb_data *hfc = fifo->hfc; |
| static __u8 eof[8]; |
| #ifdef CONFIG_HISAX_DEBUG |
| __u8 i; |
| #endif |
| |
| urb->dev = hfc->dev; /* security init */ |
| |
| fifon = fifo->fifonum; |
| if ((!fifo->active) || (urb->status)) { |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(USB_DBG, "HFC-S USB: RX-Fifo %i is going down (%i)", |
| fifon, urb->status); |
| #endif |
| 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; |
| |
| #ifdef CONFIG_HISAX_DEBUG |
| if ((fifon == 5) && (debug > 1)) { |
| printk(KERN_INFO |
| "HFC-S USB: INT-D-RX lst_urblen:%2d act_urblen:%2d max-urblen:%2d EOF:0x%0x DATA: ", |
| fifo->last_urblen, len, maxlen, eof[5]); |
| for (i = 0; i < len; i++) |
| printk("%.2x ", buf[i]); |
| printk("\n"); |
| } |
| #endif |
| |
| 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); |
| 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: error resubmitting URN at rx_complete...\n"); |
| } |
| } /* rx_complete */ |
| |
| /***************************************************/ |
| /* start the interrupt transfer for the given fifo */ |
| /***************************************************/ |
| static void |
| start_int_fifo(usb_fifo * fifo) |
| { |
| int errcode; |
| |
| printk(KERN_INFO "HFC-S USB: starting intr IN 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_complete, fifo, fifo->intervall); |
| fifo->active = 1; /* must be marked active */ |
| errcode = usb_submit_urb(fifo->urb, GFP_KERNEL); |
| if (errcode) { |
| printk(KERN_INFO |
| "HFC-S USB: submit URB error(start_int_info): status:%i\n", |
| errcode); |
| fifo->active = 0; |
| fifo->skbuff = NULL; |
| } |
| } /* start_int_fifo */ |
| |
| /*****************************/ |
| /* set the B-channel mode */ |
| /*****************************/ |
| static void |
| set_hfcmode(hfcusb_data * hfc, int channel, int mode) |
| { |
| __u8 val, idx_table[2] = { 0, 2 }; |
| |
| if (hfc->disc_flag) { |
| return; |
| } |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, "HFC-S USB: setting channel %d to mode %d", 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 */ |
| |
| /* 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) { |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, |
| "HFC_USB: hfc_usb_d_l2l1 D-chan: PH_ACTIVATE | REQUEST"); |
| #endif |
| if (hfc->l1_state != 3 |
| && hfc->l1_state != 7) { |
| hfc->d_if.ifc.l1l2(&hfc->d_if.ifc, |
| PH_DEACTIVATE | |
| INDICATION, |
| NULL); |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, |
| "HFC-S USB: PH_DEACTIVATE | INDICATION sent (not state 3 or 7)"); |
| #endif |
| } else { |
| if (hfc->l1_state == 7) { /* l1 already active */ |
| hfc->d_if.ifc.l1l2(&hfc-> |
| d_if. |
| ifc, |
| PH_ACTIVATE |
| | |
| INDICATION, |
| NULL); |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, |
| "HFC-S USB: PH_ACTIVATE | INDICATION sent again ;)"); |
| #endif |
| } 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 { |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, |
| "HFC_USB: hfc_usb_d_l2l1 Bx-chan: PH_ACTIVATE | REQUEST"); |
| #endif |
| set_hfcmode(hfc, |
| (fifo->fifonum == |
| HFCUSB_B1_TX) ? 0 : 1, |
| (int) arg); |
| fifo->hif->l1l2(fifo->hif, |
| PH_ACTIVATE | INDICATION, |
| NULL); |
| } |
| break; |
| case PH_DEACTIVATE | REQUEST: |
| if (fifo->fifonum == HFCUSB_D_TX) { |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, |
| "HFC_USB: hfc_usb_d_l2l1 D-chan: PH_DEACTIVATE | REQUEST"); |
| #endif |
| printk(KERN_INFO |
| "HFC-S USB: ISDN TE device should not deativate...\n"); |
| } else { |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(ISDN_DBG, |
| "HFC_USB: hfc_usb_d_l2l1 Bx-chan: PH_DEACTIVATE | REQUEST"); |
| #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); |
| fifo->skbuff = NULL; |
| fifo->delete_flg = FALSE; |
| } |
| fifo->skbuff = arg; /* we have a new buffer */ |
| break; |
| default: |
| printk(KERN_INFO |
| "HFC_USB: hfc_usb_d_l2l1: unkown state : %#x\n", |
| pr); |
| break; |
| } |
| } |
| |
| /***************************************************************************/ |
| /* usb_init is called once when a new matching device is detected to setup */ |
| /* main parameters. It registers the driver at the main hisax module. */ |
| /* on success 0 is returned. */ |
| /***************************************************************************/ |
| static int |
| usb_init(hfcusb_data * hfc) |
| { |
| usb_fifo *fifo; |
| int i, err; |
| 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 */ |
| err = 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 the the 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 the the 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 = FALSE; |
| hfc->disc_flag = FALSE; |
| hfc->led_state = 0; |
| hfc->led_new_data = 0; |
| hfc->old_led_state = 0; |
| |
| /* init the t3 timer */ |
| init_timer(&hfc->t3_timer); |
| hfc->t3_timer.data = (long) hfc; |
| 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_t4; |
| |
| /* 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 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; |
| hisax_register(&hfc->d_if, p_b_if, "hfc_usb", hfc->protocol); |
| |
| #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); |
| } /* usb_init */ |
| |
| /*************************************************/ |
| /* function called to probe a new plugged 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 (dev->descriptor.idVendor == hfcusb_idtab[i].idVendor |
| && dev->descriptor.idProduct == |
| hfcusb_idtab[i].idProduct) { |
| vend_idx = i; |
| continue; |
| } |
| } |
| |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(USB_DBG, |
| "HFC-USB: probing interface(%d) actalt(%d) minor(%d)\n", ifnum, |
| iface->desc.bAlternateSetting, intf->minor); |
| #endif |
| 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 = TRUE; |
| vcf = validconf[cfg_used]; |
| /* first endpoint descriptor */ |
| ep = iface->endpoint; |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(USB_DBG, |
| "HFC-S USB: (if=%d alt=%d cfg_used=%d)\n", |
| ifnum, probe_alt_setting, cfg_used); |
| #endif |
| 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 = 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->desc.bInterval < |
| vcf[17]) { |
| #ifdef CONFIG_HISAX_DEBUG |
| if (cfg_found) |
| DBG(USB_DBG, |
| "HFC-S USB: Interrupt Endpoint interval < %d found - skipping config", |
| vcf[17]); |
| #endif |
| cfg_found = FALSE; |
| } |
| 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 = FALSE; |
| } |
| if (cfg_found) { |
| if (cfg_used < small_match) { |
| small_match = cfg_used; |
| alt_used = |
| probe_alt_setting; |
| iface_used = iface; |
| } |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(USB_DBG, |
| "HFC-USB: small_match=%x %x\n", |
| small_match, alt_used); |
| #endif |
| } |
| 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 = |
| kmalloc(sizeof(hfcusb_data), GFP_KERNEL))) |
| return (-ENOMEM); /* got no mem */ |
| memset(context, 0, sizeof(hfcusb_data)); |
| |
| 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 = |
| 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 = |
| 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 = |
| 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 = |
| 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); |
| context->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); |
| |
| driver_info = |
| (hfcsusb_vdata *) hfcusb_idtab[vend_idx]. |
| driver_info; |
| printk(KERN_INFO "HFC-S USB: detected \"%s\"\n", |
| driver_info->vend_name); |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(USB_DBG, |
| "HFC-S USB: Endpoint-Config: %s (if=%d alt=%d)\n", |
| conf_str[small_match], context->if_used, |
| context->alt_used); |
| printk(KERN_INFO |
| "HFC-S USB: E-channel (\"ECHO:\") logging "); |
| if (validconf[small_match][18]) |
| printk(" possible\n"); |
| else |
| printk("NOT possible\n"); |
| #endif |
| /* 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 (-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); |
| } |
| |
| /****************************************************/ |
| /* function called when an active device is removed */ |
| /****************************************************/ |
| static void |
| hfc_usb_disconnect(struct usb_interface |
| *intf) |
| { |
| hfcusb_data *context = usb_get_intfdata(intf); |
| int i; |
| printk(KERN_INFO "HFC-S USB: device disconnect\n"); |
| context->disc_flag = TRUE; |
| usb_set_intfdata(intf, NULL); |
| if (!context) |
| return; |
| 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]); |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(USB_DBG, |
| "HFC-S USB: hfc_usb_disconnect: stopping ISOC chain Fifo no %i", |
| i); |
| #endif |
| } |
| } else { |
| if (context->fifos[i].active > 0) { |
| context->fifos[i].active = 0; |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(USB_DBG, |
| "HFC-S USB: hfc_usb_disconnect: unlinking URB for Fifo no %i", |
| 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; |
| } |
| /* wait for all URBS to terminate */ |
| mdelay(10); |
| if (context->ctrl_urb) { |
| usb_unlink_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 */ |
| } /* hfc_usb_disconnect */ |
| |
| /************************************/ |
| /* our driver information structure */ |
| /************************************/ |
| static struct usb_driver hfc_drv = { |
| .owner = THIS_MODULE, |
| .name = "hfc_usb", |
| .id_table = hfcusb_idtab, |
| .probe = hfc_usb_probe, |
| .disconnect = hfc_usb_disconnect, |
| }; |
| static void __exit |
| hfc_usb_exit(void) |
| { |
| #ifdef CONFIG_HISAX_DEBUG |
| DBG(USB_DBG, "HFC-S USB: calling \"hfc_usb_exit\" ..."); |
| #endif |
| usb_deregister(&hfc_drv); /* release our driver */ |
| printk(KERN_INFO "HFC-S USB: module removed\n"); |
| } |
| |
| static int __init |
| hfc_usb_init(void) |
| { |
| #ifndef CONFIG_HISAX_DEBUG |
| unsigned int debug = -1; |
| #endif |
| char revstr[30], datestr[30], dummy[30]; |
| 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_init); |
| module_exit(hfc_usb_exit); |
| MODULE_AUTHOR(DRIVER_AUTHOR); |
| MODULE_DESCRIPTION(DRIVER_DESC); |
| MODULE_LICENSE("GPL"); |
| MODULE_DEVICE_TABLE(usb, hfcusb_idtab); |