diff options
Diffstat (limited to 'drivers/isdn/hisax/st5481_d.c')
| -rw-r--r-- | drivers/isdn/hisax/st5481_d.c | 780 |
1 files changed, 780 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/st5481_d.c b/drivers/isdn/hisax/st5481_d.c new file mode 100644 index 00000000..e88c5c71 --- /dev/null +++ b/drivers/isdn/hisax/st5481_d.c @@ -0,0 +1,780 @@ +/* + * Driver for ST5481 USB ISDN modem + * + * Author Frode Isaksen + * Copyright 2001 by Frode Isaksen <fisaksen@bewan.com> + * 2001 by Kai Germaschewski <kai.germaschewski@gmx.de> + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + */ + +#include <linux/init.h> +#include <linux/gfp.h> +#include <linux/usb.h> +#include <linux/netdevice.h> +#include "st5481.h" + +static void ph_connect(struct st5481_adapter *adapter); +static void ph_disconnect(struct st5481_adapter *adapter); + +static struct Fsm l1fsm; + +static char *strL1State[] = +{ + "ST_L1_F3", + "ST_L1_F4", + "ST_L1_F6", + "ST_L1_F7", + "ST_L1_F8", +}; + +static char *strL1Event[] = +{ + "EV_IND_DP", + "EV_IND_1", + "EV_IND_2", + "EV_IND_3", + "EV_IND_RSY", + "EV_IND_5", + "EV_IND_6", + "EV_IND_7", + "EV_IND_AP", + "EV_IND_9", + "EV_IND_10", + "EV_IND_11", + "EV_IND_AI8", + "EV_IND_AI10", + "EV_IND_AIL", + "EV_IND_DI", + "EV_PH_ACTIVATE_REQ", + "EV_PH_DEACTIVATE_REQ", + "EV_TIMER3", +}; + +static inline void D_L1L2(struct st5481_adapter *adapter, int pr, void *arg) +{ + struct hisax_if *ifc = (struct hisax_if *) &adapter->hisax_d_if; + + ifc->l1l2(ifc, pr, arg); +} + +static void +l1_go_f3(struct FsmInst *fi, int event, void *arg) +{ + struct st5481_adapter *adapter = fi->userdata; + + if (fi->state == ST_L1_F7) + ph_disconnect(adapter); + + FsmChangeState(fi, ST_L1_F3); + D_L1L2(adapter, PH_DEACTIVATE | INDICATION, NULL); +} + +static void +l1_go_f6(struct FsmInst *fi, int event, void *arg) +{ + struct st5481_adapter *adapter = fi->userdata; + + if (fi->state == ST_L1_F7) + ph_disconnect(adapter); + + FsmChangeState(fi, ST_L1_F6); +} + +static void +l1_go_f7(struct FsmInst *fi, int event, void *arg) +{ + struct st5481_adapter *adapter = fi->userdata; + + FsmDelTimer(&adapter->timer, 0); + ph_connect(adapter); + FsmChangeState(fi, ST_L1_F7); + D_L1L2(adapter, PH_ACTIVATE | INDICATION, NULL); +} + +static void +l1_go_f8(struct FsmInst *fi, int event, void *arg) +{ + struct st5481_adapter *adapter = fi->userdata; + + if (fi->state == ST_L1_F7) + ph_disconnect(adapter); + + FsmChangeState(fi, ST_L1_F8); +} + +static void +l1_timer3(struct FsmInst *fi, int event, void *arg) +{ + struct st5481_adapter *adapter = fi->userdata; + + st5481_ph_command(adapter, ST5481_CMD_DR); + FsmChangeState(fi, ST_L1_F3); + D_L1L2(adapter, PH_DEACTIVATE | INDICATION, NULL); +} + +static void +l1_ignore(struct FsmInst *fi, int event, void *arg) +{ +} + +static void +l1_activate(struct FsmInst *fi, int event, void *arg) +{ + struct st5481_adapter *adapter = fi->userdata; + + st5481_ph_command(adapter, ST5481_CMD_DR); + st5481_ph_command(adapter, ST5481_CMD_PUP); + FsmRestartTimer(&adapter->timer, TIMER3_VALUE, EV_TIMER3, NULL, 2); + st5481_ph_command(adapter, ST5481_CMD_AR8); + FsmChangeState(fi, ST_L1_F4); +} + +static struct FsmNode L1FnList[] __initdata = +{ + {ST_L1_F3, EV_IND_DP, l1_ignore}, + {ST_L1_F3, EV_IND_AP, l1_go_f6}, + {ST_L1_F3, EV_IND_AI8, l1_go_f7}, + {ST_L1_F3, EV_IND_AI10, l1_go_f7}, + {ST_L1_F3, EV_PH_ACTIVATE_REQ, l1_activate}, + + {ST_L1_F4, EV_TIMER3, l1_timer3}, + {ST_L1_F4, EV_IND_DP, l1_go_f3}, + {ST_L1_F4, EV_IND_AP, l1_go_f6}, + {ST_L1_F4, EV_IND_AI8, l1_go_f7}, + {ST_L1_F4, EV_IND_AI10, l1_go_f7}, + + {ST_L1_F6, EV_TIMER3, l1_timer3}, + {ST_L1_F6, EV_IND_DP, l1_go_f3}, + {ST_L1_F6, EV_IND_AP, l1_ignore}, + {ST_L1_F6, EV_IND_AI8, l1_go_f7}, + {ST_L1_F6, EV_IND_AI10, l1_go_f7}, + {ST_L1_F7, EV_IND_RSY, l1_go_f8}, + + {ST_L1_F7, EV_IND_DP, l1_go_f3}, + {ST_L1_F7, EV_IND_AP, l1_go_f6}, + {ST_L1_F7, EV_IND_AI8, l1_ignore}, + {ST_L1_F7, EV_IND_AI10, l1_ignore}, + {ST_L1_F7, EV_IND_RSY, l1_go_f8}, + + {ST_L1_F8, EV_TIMER3, l1_timer3}, + {ST_L1_F8, EV_IND_DP, l1_go_f3}, + {ST_L1_F8, EV_IND_AP, l1_go_f6}, + {ST_L1_F8, EV_IND_AI8, l1_go_f8}, + {ST_L1_F8, EV_IND_AI10, l1_go_f8}, + {ST_L1_F8, EV_IND_RSY, l1_ignore}, +}; + +static __printf(2, 3) + void l1m_debug(struct FsmInst *fi, char *fmt, ...) +{ + va_list args; + char buf[256]; + + va_start(args, fmt); + vsnprintf(buf, sizeof(buf), fmt, args); + DBG(8, "%s", buf); + va_end(args); +} + +/* ====================================================================== + * D-Channel out + */ + +/* + D OUT state machine: + ==================== + + Transmit short frame (< 16 bytes of encoded data): + + L1 FRAME D_OUT_STATE USB D CHANNEL + -------- ----------- --- --------- + + FIXME + + -> [xx..xx] SHORT_INIT -> [7Exx..xxC1C27EFF] + SHORT_WAIT_DEN <> OUT_D_COUNTER=16 + + END_OF_SHORT <- DEN_EVENT -> 7Exx + xxxx + xxxx + xxxx + xxxx + xxxx + C1C1 + 7EFF + WAIT_FOR_RESET_IDLE <- D_UNDERRUN <- (8ms) + IDLE <> Reset pipe + + + + Transmit long frame (>= 16 bytes of encoded data): + + L1 FRAME D_OUT_STATE USB D CHANNEL + -------- ----------- --- --------- + + -> [xx...xx] IDLE + WAIT_FOR_STOP <> OUT_D_COUNTER=0 + WAIT_FOR_RESET <> Reset pipe + STOP + INIT_LONG_FRAME -> [7Exx..xx] + WAIT_DEN <> OUT_D_COUNTER=16 + OUT_NORMAL <- DEN_EVENT -> 7Exx + END_OF_FRAME_BUSY -> [xxxx] xxxx + END_OF_FRAME_NOT_BUSY -> [xxxx] xxxx + -> [xxxx] xxxx + -> [C1C2] xxxx + -> [7EFF] xxxx + xxxx + xxxx + .... + xxxx + C1C2 + 7EFF + <- D_UNDERRUN <- (> 8ms) + WAIT_FOR_STOP <> OUT_D_COUNTER=0 + WAIT_FOR_RESET <> Reset pipe + STOP + +*/ + +static struct Fsm dout_fsm; + +static char *strDoutState[] = +{ + "ST_DOUT_NONE", + + "ST_DOUT_SHORT_INIT", + "ST_DOUT_SHORT_WAIT_DEN", + + "ST_DOUT_LONG_INIT", + "ST_DOUT_LONG_WAIT_DEN", + "ST_DOUT_NORMAL", + + "ST_DOUT_WAIT_FOR_UNDERRUN", + "ST_DOUT_WAIT_FOR_NOT_BUSY", + "ST_DOUT_WAIT_FOR_STOP", + "ST_DOUT_WAIT_FOR_RESET", +}; + +static char *strDoutEvent[] = +{ + "EV_DOUT_START_XMIT", + "EV_DOUT_COMPLETE", + "EV_DOUT_DEN", + "EV_DOUT_RESETED", + "EV_DOUT_STOPPED", + "EV_DOUT_COLL", + "EV_DOUT_UNDERRUN", +}; + +static __printf(2, 3) + void dout_debug(struct FsmInst *fi, char *fmt, ...) +{ + va_list args; + char buf[256]; + + va_start(args, fmt); + vsnprintf(buf, sizeof(buf), fmt, args); + DBG(0x2, "%s", buf); + va_end(args); +} + +static void dout_stop_event(void *context) +{ + struct st5481_adapter *adapter = context; + + FsmEvent(&adapter->d_out.fsm, EV_DOUT_STOPPED, NULL); +} + +/* + * Start the transfer of a D channel frame. + */ +static void usb_d_out(struct st5481_adapter *adapter, int buf_nr) +{ + struct st5481_d_out *d_out = &adapter->d_out; + struct urb *urb; + unsigned int num_packets, packet_offset; + int len, buf_size, bytes_sent; + struct sk_buff *skb; + struct usb_iso_packet_descriptor *desc; + + if (d_out->fsm.state != ST_DOUT_NORMAL) + return; + + if (test_and_set_bit(buf_nr, &d_out->busy)) { + DBG(2, "ep %d urb %d busy %#lx", EP_D_OUT, buf_nr, d_out->busy); + return; + } + urb = d_out->urb[buf_nr]; + + skb = d_out->tx_skb; + + buf_size = NUM_ISO_PACKETS_D * SIZE_ISO_PACKETS_D_OUT; + + if (skb) { + len = isdnhdlc_encode(&d_out->hdlc_state, + skb->data, skb->len, &bytes_sent, + urb->transfer_buffer, buf_size); + skb_pull(skb, bytes_sent); + } else { + // Send flags or idle + len = isdnhdlc_encode(&d_out->hdlc_state, + NULL, 0, &bytes_sent, + urb->transfer_buffer, buf_size); + } + + if (len < buf_size) { + FsmChangeState(&d_out->fsm, ST_DOUT_WAIT_FOR_UNDERRUN); + } + if (skb && !skb->len) { + d_out->tx_skb = NULL; + D_L1L2(adapter, PH_DATA | CONFIRM, NULL); + dev_kfree_skb_any(skb); + } + + // Prepare the URB + urb->transfer_buffer_length = len; + num_packets = 0; + packet_offset = 0; + while (packet_offset < len) { + desc = &urb->iso_frame_desc[num_packets]; + desc->offset = packet_offset; + desc->length = SIZE_ISO_PACKETS_D_OUT; + if (len - packet_offset < desc->length) + desc->length = len - packet_offset; + num_packets++; + packet_offset += desc->length; + } + urb->number_of_packets = num_packets; + + // Prepare the URB + urb->dev = adapter->usb_dev; + // Need to transmit the next buffer 2ms after the DEN_EVENT + urb->transfer_flags = 0; + urb->start_frame = usb_get_current_frame_number(adapter->usb_dev) + 2; + + DBG_ISO_PACKET(0x20, urb); + + if (usb_submit_urb(urb, GFP_KERNEL) < 0) { + // There is another URB queued up + urb->transfer_flags = URB_ISO_ASAP; + SUBMIT_URB(urb, GFP_KERNEL); + } +} + +static void fifo_reseted(void *context) +{ + struct st5481_adapter *adapter = context; + + FsmEvent(&adapter->d_out.fsm, EV_DOUT_RESETED, NULL); +} + +static void usb_d_out_complete(struct urb *urb) +{ + struct st5481_adapter *adapter = urb->context; + struct st5481_d_out *d_out = &adapter->d_out; + long buf_nr; + + DBG(2, ""); + + buf_nr = get_buf_nr(d_out->urb, urb); + test_and_clear_bit(buf_nr, &d_out->busy); + + if (unlikely(urb->status < 0)) { + switch (urb->status) { + case -ENOENT: + case -ESHUTDOWN: + case -ECONNRESET: + DBG(1, "urb killed status %d", urb->status); + break; + default: + WARNING("urb status %d", urb->status); + if (d_out->busy == 0) { + st5481_usb_pipe_reset(adapter, EP_D_OUT | USB_DIR_OUT, fifo_reseted, adapter); + } + break; + } + return; // Give up + } + + FsmEvent(&adapter->d_out.fsm, EV_DOUT_COMPLETE, (void *) buf_nr); +} + +/* ====================================================================== */ + +static void dout_start_xmit(struct FsmInst *fsm, int event, void *arg) +{ + // FIXME unify? + struct st5481_adapter *adapter = fsm->userdata; + struct st5481_d_out *d_out = &adapter->d_out; + struct urb *urb; + int len, bytes_sent; + struct sk_buff *skb; + int buf_nr = 0; + + skb = d_out->tx_skb; + + DBG(2, "len=%d", skb->len); + + isdnhdlc_out_init(&d_out->hdlc_state, HDLC_DCHANNEL | HDLC_BITREVERSE); + + if (test_and_set_bit(buf_nr, &d_out->busy)) { + WARNING("ep %d urb %d busy %#lx", EP_D_OUT, buf_nr, d_out->busy); + return; + } + urb = d_out->urb[buf_nr]; + + DBG_SKB(0x10, skb); + len = isdnhdlc_encode(&d_out->hdlc_state, + skb->data, skb->len, &bytes_sent, + urb->transfer_buffer, 16); + skb_pull(skb, bytes_sent); + + if (len < 16) + FsmChangeState(&d_out->fsm, ST_DOUT_SHORT_INIT); + else + FsmChangeState(&d_out->fsm, ST_DOUT_LONG_INIT); + + if (skb->len == 0) { + d_out->tx_skb = NULL; + D_L1L2(adapter, PH_DATA | CONFIRM, NULL); + dev_kfree_skb_any(skb); + } + +// Prepare the URB + urb->transfer_buffer_length = len; + + urb->iso_frame_desc[0].offset = 0; + urb->iso_frame_desc[0].length = len; + urb->number_of_packets = 1; + + // Prepare the URB + urb->dev = adapter->usb_dev; + urb->transfer_flags = URB_ISO_ASAP; + + DBG_ISO_PACKET(0x20, urb); + SUBMIT_URB(urb, GFP_KERNEL); +} + +static void dout_short_fifo(struct FsmInst *fsm, int event, void *arg) +{ + struct st5481_adapter *adapter = fsm->userdata; + struct st5481_d_out *d_out = &adapter->d_out; + + FsmChangeState(&d_out->fsm, ST_DOUT_SHORT_WAIT_DEN); + st5481_usb_device_ctrl_msg(adapter, OUT_D_COUNTER, 16, NULL, NULL); +} + +static void dout_end_short_frame(struct FsmInst *fsm, int event, void *arg) +{ + struct st5481_adapter *adapter = fsm->userdata; + struct st5481_d_out *d_out = &adapter->d_out; + + FsmChangeState(&d_out->fsm, ST_DOUT_WAIT_FOR_UNDERRUN); +} + +static void dout_long_enable_fifo(struct FsmInst *fsm, int event, void *arg) +{ + struct st5481_adapter *adapter = fsm->userdata; + struct st5481_d_out *d_out = &adapter->d_out; + + st5481_usb_device_ctrl_msg(adapter, OUT_D_COUNTER, 16, NULL, NULL); + FsmChangeState(&d_out->fsm, ST_DOUT_LONG_WAIT_DEN); +} + +static void dout_long_den(struct FsmInst *fsm, int event, void *arg) +{ + struct st5481_adapter *adapter = fsm->userdata; + struct st5481_d_out *d_out = &adapter->d_out; + + FsmChangeState(&d_out->fsm, ST_DOUT_NORMAL); + usb_d_out(adapter, 0); + usb_d_out(adapter, 1); +} + +static void dout_reset(struct FsmInst *fsm, int event, void *arg) +{ + struct st5481_adapter *adapter = fsm->userdata; + struct st5481_d_out *d_out = &adapter->d_out; + + FsmChangeState(&d_out->fsm, ST_DOUT_WAIT_FOR_RESET); + st5481_usb_pipe_reset(adapter, EP_D_OUT | USB_DIR_OUT, fifo_reseted, adapter); +} + +static void dout_stop(struct FsmInst *fsm, int event, void *arg) +{ + struct st5481_adapter *adapter = fsm->userdata; + struct st5481_d_out *d_out = &adapter->d_out; + + FsmChangeState(&d_out->fsm, ST_DOUT_WAIT_FOR_STOP); + st5481_usb_device_ctrl_msg(adapter, OUT_D_COUNTER, 0, dout_stop_event, adapter); +} + +static void dout_underrun(struct FsmInst *fsm, int event, void *arg) +{ + struct st5481_adapter *adapter = fsm->userdata; + struct st5481_d_out *d_out = &adapter->d_out; + + if (test_bit(0, &d_out->busy) || test_bit(1, &d_out->busy)) { + FsmChangeState(&d_out->fsm, ST_DOUT_WAIT_FOR_NOT_BUSY); + } else { + dout_stop(fsm, event, arg); + } +} + +static void dout_check_busy(struct FsmInst *fsm, int event, void *arg) +{ + struct st5481_adapter *adapter = fsm->userdata; + struct st5481_d_out *d_out = &adapter->d_out; + + if (!test_bit(0, &d_out->busy) && !test_bit(1, &d_out->busy)) + dout_stop(fsm, event, arg); +} + +static void dout_reseted(struct FsmInst *fsm, int event, void *arg) +{ + struct st5481_adapter *adapter = fsm->userdata; + struct st5481_d_out *d_out = &adapter->d_out; + + FsmChangeState(&d_out->fsm, ST_DOUT_NONE); + // FIXME locking + if (d_out->tx_skb) + FsmEvent(&d_out->fsm, EV_DOUT_START_XMIT, NULL); +} + +static void dout_complete(struct FsmInst *fsm, int event, void *arg) +{ + struct st5481_adapter *adapter = fsm->userdata; + long buf_nr = (long) arg; + + usb_d_out(adapter, buf_nr); +} + +static void dout_ignore(struct FsmInst *fsm, int event, void *arg) +{ +} + +static struct FsmNode DoutFnList[] __initdata = +{ + {ST_DOUT_NONE, EV_DOUT_START_XMIT, dout_start_xmit}, + + {ST_DOUT_SHORT_INIT, EV_DOUT_COMPLETE, dout_short_fifo}, + + {ST_DOUT_SHORT_WAIT_DEN, EV_DOUT_DEN, dout_end_short_frame}, + {ST_DOUT_SHORT_WAIT_DEN, EV_DOUT_UNDERRUN, dout_underrun}, + + {ST_DOUT_LONG_INIT, EV_DOUT_COMPLETE, dout_long_enable_fifo}, + + {ST_DOUT_LONG_WAIT_DEN, EV_DOUT_DEN, dout_long_den}, + {ST_DOUT_LONG_WAIT_DEN, EV_DOUT_UNDERRUN, dout_underrun}, + + {ST_DOUT_NORMAL, EV_DOUT_UNDERRUN, dout_underrun}, + {ST_DOUT_NORMAL, EV_DOUT_COMPLETE, dout_complete}, + + {ST_DOUT_WAIT_FOR_UNDERRUN, EV_DOUT_UNDERRUN, dout_underrun}, + {ST_DOUT_WAIT_FOR_UNDERRUN, EV_DOUT_COMPLETE, dout_ignore}, + + {ST_DOUT_WAIT_FOR_NOT_BUSY, EV_DOUT_COMPLETE, dout_check_busy}, + + {ST_DOUT_WAIT_FOR_STOP, EV_DOUT_STOPPED, dout_reset}, + + {ST_DOUT_WAIT_FOR_RESET, EV_DOUT_RESETED, dout_reseted}, +}; + +void st5481_d_l2l1(struct hisax_if *hisax_d_if, int pr, void *arg) +{ + struct st5481_adapter *adapter = hisax_d_if->priv; + struct sk_buff *skb = arg; + + switch (pr) { + case PH_ACTIVATE | REQUEST: + FsmEvent(&adapter->l1m, EV_PH_ACTIVATE_REQ, NULL); + break; + case PH_DEACTIVATE | REQUEST: + FsmEvent(&adapter->l1m, EV_PH_DEACTIVATE_REQ, NULL); + break; + case PH_DATA | REQUEST: + DBG(2, "PH_DATA REQUEST len %d", skb->len); + BUG_ON(adapter->d_out.tx_skb); + adapter->d_out.tx_skb = skb; + FsmEvent(&adapter->d_out.fsm, EV_DOUT_START_XMIT, NULL); + break; + default: + WARNING("pr %#x\n", pr); + break; + } +} + +/* ====================================================================== + */ + +/* + * Start receiving on the D channel since entered state F7. + */ +static void ph_connect(struct st5481_adapter *adapter) +{ + struct st5481_d_out *d_out = &adapter->d_out; + struct st5481_in *d_in = &adapter->d_in; + + DBG(8, ""); + + FsmChangeState(&d_out->fsm, ST_DOUT_NONE); + + // st5481_usb_device_ctrl_msg(adapter, FFMSK_D, OUT_UNDERRUN, NULL, NULL); + st5481_usb_device_ctrl_msg(adapter, FFMSK_D, 0xfc, NULL, NULL); + st5481_in_mode(d_in, L1_MODE_HDLC); + +#ifdef LOOPBACK + // Turn loopback on (data sent on B and D looped back) + st5481_usb_device_ctrl_msg(cs, LBB, 0x04, NULL, NULL); +#endif + + st5481_usb_pipe_reset(adapter, EP_D_OUT | USB_DIR_OUT, NULL, NULL); + + // Turn on the green LED to tell that we are in state F7 + adapter->leds |= GREEN_LED; + st5481_usb_device_ctrl_msg(adapter, GPIO_OUT, adapter->leds, NULL, NULL); +} + +/* + * Stop receiving on the D channel since not in state F7. + */ +static void ph_disconnect(struct st5481_adapter *adapter) +{ + DBG(8, ""); + + st5481_in_mode(&adapter->d_in, L1_MODE_NULL); + + // Turn off the green LED to tell that we left state F7 + adapter->leds &= ~GREEN_LED; + st5481_usb_device_ctrl_msg(adapter, GPIO_OUT, adapter->leds, NULL, NULL); +} + +static int st5481_setup_d_out(struct st5481_adapter *adapter) +{ + struct usb_device *dev = adapter->usb_dev; + struct usb_interface *intf; + struct usb_host_interface *altsetting = NULL; + struct usb_host_endpoint *endpoint; + struct st5481_d_out *d_out = &adapter->d_out; + + DBG(2, ""); + + intf = usb_ifnum_to_if(dev, 0); + if (intf) + altsetting = usb_altnum_to_altsetting(intf, 3); + if (!altsetting) + return -ENXIO; + + // Allocate URBs and buffers for the D channel out + endpoint = &altsetting->endpoint[EP_D_OUT-1]; + + DBG(2, "endpoint address=%02x,packet size=%d", + endpoint->desc.bEndpointAddress, le16_to_cpu(endpoint->desc.wMaxPacketSize)); + + return st5481_setup_isocpipes(d_out->urb, dev, + usb_sndisocpipe(dev, endpoint->desc.bEndpointAddress), + NUM_ISO_PACKETS_D, SIZE_ISO_PACKETS_D_OUT, + NUM_ISO_PACKETS_D * SIZE_ISO_PACKETS_D_OUT, + usb_d_out_complete, adapter); +} + +static void st5481_release_d_out(struct st5481_adapter *adapter) +{ + struct st5481_d_out *d_out = &adapter->d_out; + + DBG(2, ""); + + st5481_release_isocpipes(d_out->urb); +} + +int st5481_setup_d(struct st5481_adapter *adapter) +{ + int retval; + + DBG(2, ""); + + retval = st5481_setup_d_out(adapter); + if (retval) + goto err; + adapter->d_in.bufsize = MAX_DFRAME_LEN_L1; + adapter->d_in.num_packets = NUM_ISO_PACKETS_D; + adapter->d_in.packet_size = SIZE_ISO_PACKETS_D_IN; + adapter->d_in.ep = EP_D_IN | USB_DIR_IN; + adapter->d_in.counter = IN_D_COUNTER; + adapter->d_in.adapter = adapter; + adapter->d_in.hisax_if = &adapter->hisax_d_if.ifc; + retval = st5481_setup_in(&adapter->d_in); + if (retval) + goto err_d_out; + + adapter->l1m.fsm = &l1fsm; + adapter->l1m.state = ST_L1_F3; + adapter->l1m.debug = st5481_debug & 0x100; + adapter->l1m.userdata = adapter; + adapter->l1m.printdebug = l1m_debug; + FsmInitTimer(&adapter->l1m, &adapter->timer); + + adapter->d_out.fsm.fsm = &dout_fsm; + adapter->d_out.fsm.state = ST_DOUT_NONE; + adapter->d_out.fsm.debug = st5481_debug & 0x100; + adapter->d_out.fsm.userdata = adapter; + adapter->d_out.fsm.printdebug = dout_debug; + + return 0; + +err_d_out: + st5481_release_d_out(adapter); +err: + return retval; +} + +void st5481_release_d(struct st5481_adapter *adapter) +{ + DBG(2, ""); + + st5481_release_in(&adapter->d_in); + st5481_release_d_out(adapter); +} + +/* ====================================================================== + * init / exit + */ + +int __init st5481_d_init(void) +{ + int retval; + + l1fsm.state_count = L1_STATE_COUNT; + l1fsm.event_count = L1_EVENT_COUNT; + l1fsm.strEvent = strL1Event; + l1fsm.strState = strL1State; + retval = FsmNew(&l1fsm, L1FnList, ARRAY_SIZE(L1FnList)); + if (retval) + goto err; + + dout_fsm.state_count = DOUT_STATE_COUNT; + dout_fsm.event_count = DOUT_EVENT_COUNT; + dout_fsm.strEvent = strDoutEvent; + dout_fsm.strState = strDoutState; + retval = FsmNew(&dout_fsm, DoutFnList, ARRAY_SIZE(DoutFnList)); + if (retval) + goto err_l1; + + return 0; + +err_l1: + FsmFree(&l1fsm); +err: + return retval; +} + +// can't be __exit +void st5481_d_exit(void) +{ + FsmFree(&l1fsm); + FsmFree(&dout_fsm); +} |