diff options
Diffstat (limited to 'drivers/isdn/gigaset/bas-gigaset.c')
| -rw-r--r-- | drivers/isdn/gigaset/bas-gigaset.c | 870 |
1 files changed, 409 insertions, 461 deletions
diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c index 31f0f07..f86ed6a 100644 --- a/drivers/isdn/gigaset/bas-gigaset.c +++ b/drivers/isdn/gigaset/bas-gigaset.c @@ -3,7 +3,7 @@ * * Copyright (c) 2001 by Hansjoerg Lipp <hjlipp@web.de>, * Tilman Schmidt <tilman@imap.cc>, - * Stefan Eilers <Eilers.Stefan@epost.de>. + * Stefan Eilers. * * Based on usb-gigaset.c. * @@ -13,10 +13,6 @@ * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * ===================================================================== - * ToDo: ... - * ===================================================================== - * Version: $Id: bas-gigaset.c,v 1.52.4.19 2006/02/04 18:28:16 hjlipp Exp $ - * ===================================================================== */ #include "gigaset.h" @@ -30,7 +26,7 @@ #include <linux/moduleparam.h> /* Version Information */ -#define DRIVER_AUTHOR "Tilman Schmidt <tilman@imap.cc>, Hansjoerg Lipp <hjlipp@web.de>, Stefan Eilers <Eilers.Stefan@epost.de>" +#define DRIVER_AUTHOR "Tilman Schmidt <tilman@imap.cc>, Hansjoerg Lipp <hjlipp@web.de>, Stefan Eilers" #define DRIVER_DESC "USB Driver for Gigaset 307x" @@ -70,9 +66,6 @@ static struct usb_device_id gigaset_table [] = { MODULE_DEVICE_TABLE(usb, gigaset_table); -/* Get a minor range for your devices from the usb maintainer */ -#define USB_SKEL_MINOR_BASE 200 - /*======================= local function prototypes =============================*/ /* This function is called if a new device is connected to the USB port. It @@ -88,25 +81,25 @@ static void gigaset_disconnect(struct usb_interface *interface); /*==============================================================================*/ struct bas_cardstate { - struct usb_device *udev; /* USB device pointer */ - struct usb_interface *interface; /* interface for this device */ + struct usb_device *udev; /* USB device pointer */ + struct usb_interface *interface; /* interface for this device */ unsigned char minor; /* starting minor number */ - struct urb *urb_ctrl; /* control pipe default URB */ + struct urb *urb_ctrl; /* control pipe default URB */ struct usb_ctrlrequest dr_ctrl; struct timer_list timer_ctrl; /* control request timeout */ struct timer_list timer_atrdy; /* AT command ready timeout */ - struct urb *urb_cmd_out; /* for sending AT commands */ + struct urb *urb_cmd_out; /* for sending AT commands */ struct usb_ctrlrequest dr_cmd_out; int retry_cmd_out; - struct urb *urb_cmd_in; /* for receiving AT replies */ + struct urb *urb_cmd_in; /* for receiving AT replies */ struct usb_ctrlrequest dr_cmd_in; struct timer_list timer_cmd_in; /* receive request timeout */ - unsigned char *rcvbuf; /* AT reply receive buffer */ + unsigned char *rcvbuf; /* AT reply receive buffer */ - struct urb *urb_int_in; /* URB for interrupt pipe */ + struct urb *urb_int_in; /* URB for interrupt pipe */ unsigned char int_in_buf[3]; spinlock_t lock; /* locks all following */ @@ -208,53 +201,54 @@ static inline char *usb_pipetype_str(int pipe) * write content of URB to syslog for debugging */ static inline void dump_urb(enum debuglevel level, const char *tag, - struct urb *urb) + struct urb *urb) { #ifdef CONFIG_GIGASET_DEBUG int i; - IFNULLRET(tag); - dbg(level, "%s urb(0x%08lx)->{", tag, (unsigned long) urb); + gig_dbg(level, "%s urb(0x%08lx)->{", tag, (unsigned long) urb); if (urb) { - dbg(level, - " dev=0x%08lx, pipe=%s:EP%d/DV%d:%s, " - "status=%d, hcpriv=0x%08lx, transfer_flags=0x%x,", - (unsigned long) urb->dev, - usb_pipetype_str(urb->pipe), - usb_pipeendpoint(urb->pipe), usb_pipedevice(urb->pipe), - usb_pipein(urb->pipe) ? "in" : "out", - urb->status, (unsigned long) urb->hcpriv, - urb->transfer_flags); - dbg(level, - " transfer_buffer=0x%08lx[%d], actual_length=%d, " - "bandwidth=%d, setup_packet=0x%08lx,", - (unsigned long) urb->transfer_buffer, - urb->transfer_buffer_length, urb->actual_length, - urb->bandwidth, (unsigned long) urb->setup_packet); - dbg(level, - " start_frame=%d, number_of_packets=%d, interval=%d, " - "error_count=%d,", - urb->start_frame, urb->number_of_packets, urb->interval, - urb->error_count); - dbg(level, - " context=0x%08lx, complete=0x%08lx, iso_frame_desc[]={", - (unsigned long) urb->context, - (unsigned long) urb->complete); + gig_dbg(level, + " dev=0x%08lx, pipe=%s:EP%d/DV%d:%s, " + "status=%d, hcpriv=0x%08lx, transfer_flags=0x%x,", + (unsigned long) urb->dev, + usb_pipetype_str(urb->pipe), + usb_pipeendpoint(urb->pipe), usb_pipedevice(urb->pipe), + usb_pipein(urb->pipe) ? "in" : "out", + urb->status, (unsigned long) urb->hcpriv, + urb->transfer_flags); + gig_dbg(level, + " transfer_buffer=0x%08lx[%d], actual_length=%d, " + "bandwidth=%d, setup_packet=0x%08lx,", + (unsigned long) urb->transfer_buffer, + urb->transfer_buffer_length, urb->actual_length, + urb->bandwidth, (unsigned long) urb->setup_packet); + gig_dbg(level, + " start_frame=%d, number_of_packets=%d, interval=%d, " + "error_count=%d,", + urb->start_frame, urb->number_of_packets, urb->interval, + urb->error_count); + gig_dbg(level, + " context=0x%08lx, complete=0x%08lx, " + "iso_frame_desc[]={", + (unsigned long) urb->context, + (unsigned long) urb->complete); for (i = 0; i < urb->number_of_packets; i++) { - struct usb_iso_packet_descriptor *pifd = &urb->iso_frame_desc[i]; - dbg(level, - " {offset=%u, length=%u, actual_length=%u, " - "status=%u}", - pifd->offset, pifd->length, pifd->actual_length, - pifd->status); + struct usb_iso_packet_descriptor *pifd + = &urb->iso_frame_desc[i]; + gig_dbg(level, + " {offset=%u, length=%u, actual_length=%u, " + "status=%u}", + pifd->offset, pifd->length, pifd->actual_length, + pifd->status); } } - dbg(level, "}}"); + gig_dbg(level, "}}"); #endif } /* read/set modem control bits etc. (m10x only) */ static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state, - unsigned new_state) + unsigned new_state) { return -EINVAL; } @@ -280,8 +274,8 @@ static inline void error_hangup(struct bc_state *bcs) { struct cardstate *cs = bcs->cs; - dbg(DEBUG_ANY, - "%s: scheduling HUP for channel %d", __func__, bcs->channel); + gig_dbg(DEBUG_ANY, "%s: scheduling HUP for channel %d", + __func__, bcs->channel); if (!gigaset_add_event(cs, &bcs->at_state, EV_HUP, NULL, 0, NULL)) { //FIXME what should we do? @@ -301,22 +295,19 @@ static inline void error_hangup(struct bc_state *bcs) static inline void error_reset(struct cardstate *cs) { //FIXME try to recover without bothering the user - err("unrecoverable error - please disconnect the Gigaset base to reset"); + dev_err(cs->dev, + "unrecoverable error - please disconnect Gigaset base to reset\n"); } /* check_pending * check for completion of pending control request * parameter: - * urb USB request block of completed request - * urb->context = hardware specific controller state structure + * ucs hardware specific controller state structure */ static void check_pending(struct bas_cardstate *ucs) { unsigned long flags; - IFNULLRET(ucs); - IFNULLRET(cardstate); - spin_lock_irqsave(&ucs->lock, flags); switch (ucs->pending) { case 0: @@ -336,8 +327,6 @@ static void check_pending(struct bas_cardstate *ucs) case HD_CLOSE_ATCHANNEL: if (!(atomic_read(&ucs->basstate) & BS_ATOPEN)) ucs->pending = 0; - //wake_up_interruptible(cs->initwait); - //FIXME need own wait queue? break; case HD_CLOSE_B1CHANNEL: if (!(atomic_read(&ucs->basstate) & BS_B1OPEN)) @@ -354,7 +343,9 @@ static void check_pending(struct bas_cardstate *ucs) * are handled separately and should never end up here */ default: - warn("unknown pending request 0x%02x cleared", ucs->pending); + dev_warn(&ucs->interface->dev, + "unknown pending request 0x%02x cleared\n", + ucs->pending); ucs->pending = 0; } @@ -372,27 +363,23 @@ static void check_pending(struct bas_cardstate *ucs) static void cmd_in_timeout(unsigned long data) { struct cardstate *cs = (struct cardstate *) data; - struct bas_cardstate *ucs; + struct bas_cardstate *ucs = cs->hw.bas; unsigned long flags; - IFNULLRET(cs); - ucs = cs->hw.bas; - IFNULLRET(ucs); - spin_lock_irqsave(&cs->lock, flags); - if (!atomic_read(&cs->connected)) { - dbg(DEBUG_USBREQ, "%s: disconnected", __func__); + if (unlikely(!cs->connected)) { + gig_dbg(DEBUG_USBREQ, "%s: disconnected", __func__); spin_unlock_irqrestore(&cs->lock, flags); return; } if (!ucs->rcvbuf_size) { - dbg(DEBUG_USBREQ, "%s: no receive in progress", __func__); + gig_dbg(DEBUG_USBREQ, "%s: no receive in progress", __func__); spin_unlock_irqrestore(&cs->lock, flags); return; } spin_unlock_irqrestore(&cs->lock, flags); - err("timeout reading AT response"); + dev_err(cs->dev, "timeout reading AT response\n"); error_reset(cs); //FIXME retry? } @@ -412,18 +399,15 @@ static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs); */ static int atread_submit(struct cardstate *cs, int timeout) { - struct bas_cardstate *ucs; + struct bas_cardstate *ucs = cs->hw.bas; int ret; - IFNULLRETVAL(cs, -EINVAL); - ucs = cs->hw.bas; - IFNULLRETVAL(ucs, -EINVAL); - IFNULLRETVAL(ucs->urb_cmd_in, -EINVAL); - - dbg(DEBUG_USBREQ, "-------> HD_READ_ATMESSAGE (%d)", ucs->rcvbuf_size); + gig_dbg(DEBUG_USBREQ, "-------> HD_READ_ATMESSAGE (%d)", + ucs->rcvbuf_size); if (ucs->urb_cmd_in->status == -EINPROGRESS) { - err("could not submit HD_READ_ATMESSAGE: URB busy"); + dev_err(cs->dev, + "could not submit HD_READ_ATMESSAGE: URB busy\n"); return -EBUSY; } @@ -433,19 +417,19 @@ static int atread_submit(struct cardstate *cs, int timeout) ucs->dr_cmd_in.wIndex = 0; ucs->dr_cmd_in.wLength = cpu_to_le16(ucs->rcvbuf_size); usb_fill_control_urb(ucs->urb_cmd_in, ucs->udev, - usb_rcvctrlpipe(ucs->udev, 0), - (unsigned char*) & ucs->dr_cmd_in, - ucs->rcvbuf, ucs->rcvbuf_size, - read_ctrl_callback, cs->inbuf); + usb_rcvctrlpipe(ucs->udev, 0), + (unsigned char*) & ucs->dr_cmd_in, + ucs->rcvbuf, ucs->rcvbuf_size, + read_ctrl_callback, cs->inbuf); if ((ret = usb_submit_urb(ucs->urb_cmd_in, SLAB_ATOMIC)) != 0) { - err("could not submit HD_READ_ATMESSAGE: %s", - get_usb_statmsg(ret)); + dev_err(cs->dev, "could not submit HD_READ_ATMESSAGE: %s\n", + get_usb_statmsg(ret)); return ret; } if (timeout > 0) { - dbg(DEBUG_USBREQ, "setting timeout of %d/10 secs", timeout); + gig_dbg(DEBUG_USBREQ, "setting timeout of %d/10 secs", timeout); ucs->timer_cmd_in.expires = jiffies + timeout * HZ / 10; ucs->timer_cmd_in.data = (unsigned long) cs; ucs->timer_cmd_in.function = cmd_in_timeout; @@ -483,25 +467,14 @@ inline static void update_basstate(struct bas_cardstate *ucs, */ static void read_int_callback(struct urb *urb, struct pt_regs *regs) { - struct cardstate *cs; - struct bas_cardstate *ucs; + struct cardstate *cs = urb->context; + struct bas_cardstate *ucs = cs->hw.bas; struct bc_state *bcs; unsigned long flags; int status; unsigned l; int channel; - IFNULLRET(urb); - cs = (struct cardstate *) urb->context; - IFNULLRET(cs); - ucs = cs->hw.bas; - IFNULLRET(ucs); - - if (unlikely(!atomic_read(&cs->connected))) { - warn("%s: disconnected", __func__); - return; - } - switch (urb->status) { case 0: /* success */ break; @@ -509,11 +482,12 @@ static void read_int_callback(struct urb *urb, struct pt_regs *regs) case -ECONNRESET: /* canceled (async) */ case -EINPROGRESS: /* pending */ /* ignore silently */ - dbg(DEBUG_USBREQ, - "%s: %s", __func__, get_usb_statmsg(urb->status)); + gig_dbg(DEBUG_USBREQ, "%s: %s", + __func__, get_usb_statmsg(urb->status)); return; default: /* severe trouble */ - warn("interrupt read: %s", get_usb_statmsg(urb->status)); + dev_warn(cs->dev, "interrupt read: %s\n", + get_usb_statmsg(urb->status)); //FIXME corrective action? resubmission always ok? goto resubmit; } @@ -521,10 +495,9 @@ static void read_int_callback(struct urb *urb, struct pt_regs *regs) l = (unsigned) ucs->int_in_buf[1] + (((unsigned) ucs->int_in_buf[2]) << 8); - dbg(DEBUG_USBREQ, - "<-------%d: 0x%02x (%u [0x%02x 0x%02x])", urb->actual_length, - (int)ucs->int_in_buf[0], l, - (int)ucs->int_in_buf[1], (int)ucs->int_in_buf[2]); + gig_dbg(DEBUG_USBREQ, "<-------%d: 0x%02x (%u [0x%02x 0x%02x])", + urb->actual_length, (int)ucs->int_in_buf[0], l, + (int)ucs->int_in_buf[1], (int)ucs->int_in_buf[2]); channel = 0; @@ -570,28 +543,30 @@ static void read_int_callback(struct urb *urb, struct pt_regs *regs) case HD_B1_FLOW_CONTROL: bcs = cs->bcs + channel; atomic_add((l - BAS_NORMFRAME) * BAS_CORRFRAMES, - &bcs->hw.bas->corrbytes); - dbg(DEBUG_ISO, - "Flow control (channel %d, sub %d): 0x%02x => %d", - channel, bcs->hw.bas->numsub, l, - atomic_read(&bcs->hw.bas->corrbytes)); + &bcs->hw.bas->corrbytes); + gig_dbg(DEBUG_ISO, + "Flow control (channel %d, sub %d): 0x%02x => %d", + channel, bcs->hw.bas->numsub, l, + atomic_read(&bcs->hw.bas->corrbytes)); break; case HD_RECEIVEATDATA_ACK: /* AT response ready to be received */ if (!l) { - warn("HD_RECEIVEATDATA_ACK with length 0 ignored"); + dev_warn(cs->dev, + "HD_RECEIVEATDATA_ACK with length 0 ignored\n"); break; } spin_lock_irqsave(&cs->lock, flags); if (ucs->rcvbuf_size) { spin_unlock_irqrestore(&cs->lock, flags); - err("receive AT data overrun, %d bytes lost", l); + dev_err(cs->dev, + "receive AT data overrun, %d bytes lost\n", l); error_reset(cs); //FIXME reschedule break; } if ((ucs->rcvbuf = kmalloc(l, GFP_ATOMIC)) == NULL) { spin_unlock_irqrestore(&cs->lock, flags); - err("%s: out of memory, %d bytes lost", __func__, l); + dev_err(cs->dev, "out of memory, %d bytes lost\n", l); error_reset(cs); //FIXME reschedule break; } @@ -607,25 +582,28 @@ static void read_int_callback(struct urb *urb, struct pt_regs *regs) break; case HD_RESET_INTERRUPT_PIPE_ACK: - dbg(DEBUG_USBREQ, "HD_RESET_INTERRUPT_PIPE_ACK"); + gig_dbg(DEBUG_USBREQ, "HD_RESET_INTERRUPT_PIPE_ACK"); break; case HD_SUSPEND_END: - dbg(DEBUG_USBREQ, "HD_SUSPEND_END"); + gig_dbg(DEBUG_USBREQ, "HD_SUSPEND_END"); break; default: - warn("unknown Gigaset signal 0x%02x (%u) ignored", - (int) ucs->int_in_buf[0], l); + dev_warn(cs->dev, + "unknown Gigaset signal 0x%02x (%u) ignored\n", + (int) ucs->int_in_buf[0], l); } check_pending(ucs); resubmit: - status = usb_submit_urb(urb, SLAB_ATOMIC); + spin_lock_irqsave(&cs->lock, flags); + status = cs->connected ? usb_submit_urb(urb, SLAB_ATOMIC) : -ENODEV; + spin_unlock_irqrestore(&cs->lock, flags); if (unlikely(status)) { - err("could not resubmit interrupt URB: %s", - get_usb_statmsg(status)); + dev_err(cs->dev, "could not resubmit interrupt URB: %s\n", + get_usb_statmsg(status)); error_reset(cs); } } @@ -639,30 +617,22 @@ resubmit: */ static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs) { - struct cardstate *cs; - struct bas_cardstate *ucs; + struct inbuf_t *inbuf = urb->context; + struct cardstate *cs = inbuf->cs; + struct bas_cardstate *ucs = cs->hw.bas; + int have_data = 0; unsigned numbytes; unsigned long flags; - struct inbuf_t *inbuf; - int have_data = 0; - - IFNULLRET(urb); - inbuf = (struct inbuf_t *) urb->context; - IFNULLRET(inbuf); - cs = inbuf->cs; - IFNULLRET(cs); - ucs = cs->hw.bas; - IFNULLRET(ucs); spin_lock_irqsave(&cs->lock, flags); - if (!atomic_read(&cs->connected)) { + if (unlikely(!cs->connected)) { warn("%s: disconnected", __func__); spin_unlock_irqrestore(&cs->lock, flags); return; } if (!ucs->rcvbuf_size) { - warn("%s: no receive in progress", __func__); + dev_warn(cs->dev, "%s: no receive in progress\n", __func__); spin_unlock_irqrestore(&cs->lock, flags); return; } @@ -673,12 +643,14 @@ static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs) case 0: /* normal completion */ numbytes = urb->actual_length; if (unlikely(numbytes == 0)) { - warn("control read: empty block received"); + dev_warn(cs->dev, + "control read: empty block received\n"); goto retry; } if (unlikely(numbytes != ucs->rcvbuf_size)) { - warn("control read: received %d chars, expected %d", - numbytes, ucs->rcvbuf_size); + dev_warn(cs->dev, + "control read: received %d chars, expected %d\n", + numbytes, ucs->rcvbuf_size); if (numbytes > ucs->rcvbuf_size) numbytes = ucs->rcvbuf_size; } @@ -698,23 +670,26 @@ static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs) case -ECONNRESET: /* canceled (async) */ case -EINPROGRESS: /* pending */ /* no action necessary */ - dbg(DEBUG_USBREQ, - "%s: %s", __func__, get_usb_statmsg(urb->status)); + gig_dbg(DEBUG_USBREQ, "%s: %s", + __func__, get_usb_statmsg(urb->status)); break; default: /* severe trouble */ - warn("control read: %s", get_usb_statmsg(urb->status)); + dev_warn(cs->dev, "control read: %s\n", + get_usb_statmsg(urb->status)); retry: if (ucs->retry_cmd_in++ < BAS_RETRY) { - notice("control read: retry %d", ucs->retry_cmd_in); + dev_notice(cs->dev, "control read: retry %d\n", + ucs->retry_cmd_in); if (atread_submit(cs, BAS_TIMEOUT) >= 0) { /* resubmitted - bypass regular exit block */ spin_unlock_irqrestore(&cs->lock, flags); return; } } else { - err("control read: giving up after %d tries", - ucs->retry_cmd_in); + dev_err(cs->dev, + "control read: giving up after %d tries\n", + ucs->retry_cmd_in); } error_reset(cs); } @@ -724,7 +699,7 @@ static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs) ucs->rcvbuf_size = 0; spin_unlock_irqrestore(&cs->lock, flags); if (have_data) { - dbg(DEBUG_INTR, "%s-->BH", __func__); + gig_dbg(DEBUG_INTR, "%s-->BH", __func__); gigaset_schedule_event(cs); } } @@ -743,21 +718,16 @@ static void read_iso_callback(struct urb *urb, struct pt_regs *regs) unsigned long flags; int i, rc; - IFNULLRET(urb); - IFNULLRET(urb->context); - IFNULLRET(cardstate); - /* status codes not worth bothering the tasklet with */ if (unlikely(urb->status == -ENOENT || urb->status == -ECONNRESET || - urb->status == -EINPROGRESS)) { - dbg(DEBUG_ISO, - "%s: %s", __func__, get_usb_statmsg(urb->status)); + urb->status == -EINPROGRESS)) { + gig_dbg(DEBUG_ISO, "%s: %s", + __func__, get_usb_statmsg(urb->status)); return; } - bcs = (struct bc_state *) urb->context; + bcs = urb->context; ubc = bcs->hw.bas; - IFNULLRET(ubc); spin_lock_irqsave(&ubc->isoinlock, flags); if (likely(ubc->isoindone == NULL)) { @@ -777,14 +747,17 @@ static void read_iso_callback(struct urb *urb, struct pt_regs *regs) urb->iso_frame_desc[i].actual_length = 0; } if (likely(atomic_read(&ubc->running))) { - urb->dev = bcs->cs->hw.bas->udev; /* clobbered by USB subsystem */ + /* urb->dev is clobbered by USB subsystem */ + urb->dev = bcs->cs->hw.bas->udev; urb->transfer_flags = URB_ISO_ASAP; urb->number_of_packets = BAS_NUMFRAMES; - dbg(DEBUG_ISO, "%s: isoc read overrun/resubmit", __func__); + gig_dbg(DEBUG_ISO, "%s: isoc read overrun/resubmit", + __func__); rc = usb_submit_urb(urb, SLAB_ATOMIC); if (unlikely(rc != 0)) { - err("could not resubmit isochronous read URB: %s", - get_usb_statmsg(rc)); + dev_err(bcs->cs->dev, + "could not resubmit isochronous read " + "URB: %s\n", get_usb_statmsg(rc)); dump_urb(DEBUG_ISO, "isoc read", urb); error_hangup(bcs); } @@ -806,23 +779,17 @@ static void write_iso_callback(struct urb *urb, struct pt_regs *regs) struct bas_bc_state *ubc; unsigned long flags; - IFNULLRET(urb); - IFNULLRET(urb->context); - IFNULLRET(cardstate); - /* status codes not worth bothering the tasklet with */ if (unlikely(urb->status == -ENOENT || urb->status == -ECONNRESET || - urb->status == -EINPROGRESS)) { - dbg(DEBUG_ISO, - "%s: %s", __func__, get_usb_statmsg(urb->status)); + urb->status == -EINPROGRESS)) { + gig_dbg(DEBUG_ISO, "%s: %s", + __func__, get_usb_statmsg(urb->status)); return; } /* pass URB context to tasklet */ - ucx = (struct isow_urbctx_t *) urb->context; - IFNULLRET(ucx->bcs); + ucx = urb->context; ubc = ucx->bcs->hw.bas; - IFNULLRET(ubc); spin_lock_irqsave(&ubc->isooutlock, flags); ubc->isooutovfl = ubc->isooutdone; @@ -841,15 +808,11 @@ static void write_iso_callback(struct urb *urb, struct pt_regs *regs) */ static int starturbs(struct bc_state *bcs) { + struct bas_bc_state *ubc = bcs->hw.bas; struct urb *urb; - struct bas_bc_state *ubc; int j, k; int rc; - IFNULLRETVAL(bcs, -EFAULT); - ubc = bcs->hw.bas; - IFNULLRETVAL(ubc, -EFAULT); - /* initialize L2 reception */ if (bcs->proto2 == ISDN_PROTO_L2_HDLC) bcs->inputstate |= INS_flag_hunt; @@ -859,7 +822,7 @@ static int starturbs(struct bc_state *bcs) for (k = 0; k < BAS_INURBS; k++) { urb = ubc->isoinurbs[k]; if (!urb) { - err("isoinurbs[%d]==NULL", k); + dev_err(bcs->cs->dev, "isoinurbs[%d]==NULL\n", k); rc = -EFAULT; goto error; } @@ -882,8 +845,9 @@ static int starturbs(struct bc_state *bcs) dump_urb(DEBUG_ISO, "Initial isoc read", urb); if ((rc = usb_submit_urb(urb, SLAB_ATOMIC)) != 0) { - err("could not submit isochronous read URB %d: %s", - k, get_usb_statmsg(rc)); + dev_err(bcs->cs->dev, + "could not submit isochronous read URB %d: %s\n", + k, get_usb_statmsg(rc)); goto error; } } @@ -895,7 +859,7 @@ static int starturbs(struct bc_state *bcs) for (k = 0; k < BAS_OUTURBS; ++k) { urb = ubc->isoouturbs[k].urb; if (!urb) { - err("isoouturbs[%d].urb==NULL", k); + dev_err(bcs->cs->dev, "isoouturbs[%d].urb==NULL\n", k); rc = -EFAULT; goto error; } @@ -922,8 +886,9 @@ static int starturbs(struct bc_state *bcs) dump_urb(DEBUG_ISO, "Initial isoc write", urb); rc = usb_submit_urb(ubc->isoouturbs[k].urb, SLAB_ATOMIC); if (rc != 0) { - err("could not submit isochronous write URB %d: %s", - k, get_usb_statmsg(rc)); + dev_err(bcs->cs->dev, + "could not submit isochronous write URB %d: %s\n", + k, get_usb_statmsg(rc)); goto error; } } @@ -946,20 +911,20 @@ static void stopurbs(struct bas_bc_state *ubc) { int k, rc; - IFNULLRET(ubc); - atomic_set(&ubc->running, 0); for (k = 0; k < BAS_INURBS; ++k) { rc = usb_unlink_urb(ubc->isoinurbs[k]); - dbg(DEBUG_ISO, "%s: isoc input URB %d unlinked, result = %d", - __func__, k, rc); + gig_dbg(DEBUG_ISO, + "%s: isoc input URB %d unlinked, result = %d", + __func__, k, rc); } for (k = 0; k < BAS_OUTURBS; ++k) { rc = usb_unlink_urb(ubc->isoouturbs[k].urb); - dbg(DEBUG_ISO, "%s: isoc output URB %d unlinked, result = %d", - __func__, k, rc); + gig_dbg(DEBUG_ISO, + "%s: isoc output URB %d unlinked, result = %d", + __func__, k, rc); } } @@ -977,19 +942,14 @@ static void stopurbs(struct bas_bc_state *ubc) */ static int submit_iso_write_urb(struct isow_urbctx_t *ucx) { - struct urb *urb; - struct bas_bc_state *ubc; + struct urb *urb = ucx->urb; + struct bas_bc_state *ubc = ucx->bcs->hw.bas; struct usb_iso_packet_descriptor *ifd; int corrbytes, nframe, rc; + unsigned long flags; - IFNULLRETVAL(ucx, -EFAULT); - urb = ucx->urb; - IFNULLRETVAL(urb, -EFAULT); - IFNULLRETVAL(ucx->bcs, -EFAULT); - ubc = ucx->bcs->hw.bas; - IFNULLRETVAL(ubc, -EFAULT); - - urb->dev = ucx->bcs->cs->hw.bas->udev; /* clobbered by USB subsystem */ + /* urb->dev is clobbered by USB subsystem */ + urb->dev = ucx->bcs->cs->hw.bas->udev; urb->transfer_flags = URB_ISO_ASAP; urb->transfer_buffer = ubc->isooutbuf->data; urb->transfer_buffer_length = sizeof(ubc->isooutbuf->data); @@ -1000,7 +960,8 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx) /* compute frame length according to flow control */ ifd->length = BAS_NORMFRAME; if ((corrbytes = atomic_read(&ubc->corrbytes)) != 0) { - dbg(DEBUG_ISO, "%s: corrbytes=%d", __func__, corrbytes); + gig_dbg(DEBUG_ISO, "%s: corrbytes=%d", + __func__, corrbytes); if (corrbytes > BAS_HIGHFRAME - BAS_NORMFRAME) corrbytes = BAS_HIGHFRAME - BAS_NORMFRAME; else if (corrbytes < BAS_LOWFRAME - BAS_NORMFRAME) @@ -1008,18 +969,21 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx) ifd->length += corrbytes; atomic_add(-corrbytes, &ubc->corrbytes); } - //dbg(DEBUG_ISO, "%s: frame %d length=%d", __func__, nframe, ifd->length); /* retrieve block of data to send */ - ifd->offset = gigaset_isowbuf_getbytes(ubc->isooutbuf, ifd->length); + ifd->offset = gigaset_isowbuf_getbytes(ubc->isooutbuf, + ifd->length); if (ifd->offset < 0) { if (ifd->offset == -EBUSY) { - dbg(DEBUG_ISO, "%s: buffer busy at frame %d", - __func__, nframe); - /* tasklet will be restarted from gigaset_send_skb() */ + gig_dbg(DEBUG_ISO, + "%s: buffer busy at frame %d", + __func__, nframe); + /* tasklet will be restarted from + gigaset_send_skb() */ } else { - err("%s: buffer error %d at frame %d", - __func__, ifd->offset, nframe); + dev_err(ucx->bcs->cs->dev, + "%s: buffer error %d at frame %d\n", + __func__, ifd->offset, nframe); return ifd->offset; } break; @@ -1029,9 +993,14 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx) ifd->actual_length = 0; } if ((urb->number_of_packets = nframe) > 0) { - if ((rc = usb_submit_urb(urb, SLAB_ATOMIC)) != 0) { - err("could not submit isochronous write URB: %s", - get_usb_statmsg(rc)); + spin_lock_irqsave(&ucx->bcs->cs->lock, flags); + rc = ucx->bcs->cs->connected ? usb_submit_urb(urb, SLAB_ATOMIC) : -ENODEV; + spin_unlock_irqrestore(&ucx->bcs->cs->lock, flags); + + if (rc) { + dev_err(ucx->bcs->cs->dev, + "could not submit isochronous write URB: %s\n", + get_usb_statmsg(rc)); dump_urb(DEBUG_ISO, "isoc write", urb); return rc; } @@ -1048,9 +1017,9 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx) */ static void write_iso_tasklet(unsigned long data) { - struct bc_state *bcs; - struct bas_bc_state *ubc; - struct cardstate *cs; + struct bc_state *bcs = (struct bc_state *) data; + struct bas_bc_state *ubc = bcs->hw.bas; + struct cardstate *cs = bcs->cs; struct isow_urbctx_t *done, *next, *ovfl; struct urb *urb; struct usb_iso_packet_descriptor *ifd; @@ -1060,22 +1029,10 @@ static void write_iso_tasklet(unsigned long data) struct sk_buff *skb; int len; - bcs = (struct bc_state *) data; - IFNULLRET(bcs); - ubc = bcs->hw.bas; - IFNULLRET(ubc); - cs = bcs->cs; - IFNULLRET(cs); - /* loop while completed URBs arrive in time */ for (;;) { - if (unlikely(!atomic_read(&cs->connected))) { - warn("%s: disconnected", __func__); - return; - } - if (unlikely(!(atomic_read(&ubc->running)))) { - dbg(DEBUG_ISO, "%s: not running", __func__); + gig_dbg(DEBUG_ISO, "%s: not running", __func__); return; } @@ -1087,7 +1044,7 @@ static void write_iso_tasklet(unsigned long data) ubc->isooutovfl = NULL; spin_unlock_irqrestore(&ubc->isooutlock, flags); if (ovfl) { - err("isochronous write buffer underrun - buy a faster machine :-)"); + dev_err(cs->dev, "isochronous write buffer underrun\n"); error_hangup(bcs); break; } @@ -1110,7 +1067,8 @@ static void write_iso_tasklet(unsigned long data) spin_unlock_irqrestore(&ubc->isooutlock, flags); if (next) { /* couldn't put it back */ - err("losing isochronous write URB"); + dev_err(cs->dev, + "losing isochronous write URB\n"); error_hangup(bcs); } } @@ -1123,22 +1081,25 @@ static void write_iso_tasklet(unsigned long data) break; case -EXDEV: /* inspect individual frames */ /* assumptions (for lack of documentation): - * - actual_length bytes of the frame in error are successfully sent + * - actual_length bytes of the frame in error are + * successfully sent * - all following frames are not sent at all */ - dbg(DEBUG_ISO, "%s: URB partially completed", __func__); + gig_dbg(DEBUG_ISO, "%s: URB partially completed", + __func__); offset = done->limit; /* just in case */ for (i = 0; i < BAS_NUMFRAMES; i++) { ifd = &urb->iso_frame_desc[i]; if (ifd->status || ifd->actual_length != ifd->length) { - warn("isochronous write: frame %d: %s, " - "only %d of %d bytes sent", + dev_warn(cs->dev, + "isochronous write: frame %d: %s, " + "only %d of %d bytes sent\n", i, get_usb_statmsg(ifd->status), ifd->actual_length, ifd->length); offset = (ifd->offset + - ifd->actual_length) - % BAS_OUTBUFSIZE; + ifd->actual_length) + % BAS_OUTBUFSIZE; break; } } @@ -1148,25 +1109,26 @@ static void write_iso_tasklet(unsigned long data) ifd = &urb->iso_frame_desc[i]; if (ifd->status != -EINPROGRESS || ifd->actual_length != 0) { - warn("isochronous write: frame %d: %s, " - "%d of %d bytes sent", + dev_warn(cs->dev, + "isochronous write: frame %d: %s, " + "%d of %d bytes sent\n", i, get_usb_statmsg(ifd->status), ifd->actual_length, ifd->length); offset = (ifd->offset + - ifd->actual_length) - % BAS_OUTBUFSIZE; + ifd->actual_length) + % BAS_OUTBUFSIZE; break; } } #endif break; - case -EPIPE: //FIXME is this the code for "underrun"? - err("isochronous write stalled"); + case -EPIPE: //FIXME is this the code for "underrun"? + dev_err(cs->dev, "isochronous write stalled\n"); error_hangup(bcs); break; default: /* severe trouble */ - warn("isochronous write: %s", - get_usb_statmsg(urb->status)); + dev_warn(cs->dev, "isochronous write: %s\n", + get_usb_statmsg(urb->status)); } /* mark the write buffer area covered by this URB as free */ @@ -1194,8 +1156,8 @@ static void write_iso_tasklet(unsigned long data) if (gigaset_isoc_buildframe(bcs, skb->data, len) == -EAGAIN) { /* insufficient buffer space, push back onto queue */ skb_queue_head(&bcs->squeue, skb); - dbg(DEBUG_ISO, "%s: skb requeued, qlen=%d", - __func__, skb_queue_len(&bcs->squeue)); + gig_dbg(DEBUG_ISO, "%s: skb requeued, qlen=%d", + __func__, skb_queue_len(&bcs->squeue)); break; } skb_pull(skb, len); @@ -1215,28 +1177,16 @@ static void write_iso_tasklet(unsigned long data) */ static void read_iso_tasklet(unsigned long data) { - struct bc_state *bcs; - struct bas_bc_state *ubc; - struct cardstate *cs; + struct bc_state *bcs = (struct bc_state *) data; + struct bas_bc_state *ubc = bcs->hw.bas; + struct cardstate *cs = bcs->cs; struct urb *urb; char *rcvbuf; unsigned long flags; int totleft, numbytes, offset, frame, rc; - bcs = (struct bc_state *) data; - IFNULLRET(bcs); - ubc = bcs->hw.bas; - IFNULLRET(ubc); - cs = bcs->cs; - IFNULLRET(cs); - /* loop while more completed URBs arrive in the meantime */ for (;;) { - if (!atomic_read(&cs->connected)) { - warn("%s: disconnected", __func__); - return; - } - /* retrieve URB */ spin_lock_irqsave(&ubc->isoinlock, flags); if (!(urb = ubc->isoindone)) { @@ -1245,38 +1195,45 @@ static void read_iso_tasklet(unsigned long data) } ubc->isoindone = NULL; if (unlikely(ubc->loststatus != -EINPROGRESS)) { - warn("isochronous read overrun, dropped URB with status: %s, %d bytes lost", - get_usb_statmsg(ubc->loststatus), ubc->isoinlost); + dev_warn(cs->dev, + "isochronous read overrun, " + "dropped URB with status: %s, %d bytes lost\n", + get_usb_statmsg(ubc->loststatus), + ubc->isoinlost); ubc->loststatus = -EINPROGRESS; } spin_unlock_irqrestore(&ubc->isoinlock, flags); if (unlikely(!(atomic_read(&ubc->running)))) { - dbg(DEBUG_ISO, "%s: channel not running, dropped URB with status: %s", - __func__, get_usb_statmsg(urb->status)); + gig_dbg(DEBUG_ISO, + "%s: channel not running, " + "dropped URB with status: %s", + __func__, get_usb_statmsg(urb->status)); return; } switch (urb->status) { case 0: /* normal completion */ break; - case -EXDEV: /* inspect individual frames (we do that anyway) */ - dbg(DEBUG_ISO, "%s: URB partially completed", __func__); + case -EXDEV: /* inspect individual frames + (we do that anyway) */ + gig_dbg(DEBUG_ISO, "%s: URB partially completed", + __func__); break; case -ENOENT: case -ECONNRESET: - dbg(DEBUG_ISO, "%s: URB canceled", __func__); + gig_dbg(DEBUG_ISO, "%s: URB canceled", __func__); continue; /* -> skip */ case -EINPROGRESS: /* huh? */ - dbg(DEBUG_ISO, "%s: URB still pending", __func__); + gig_dbg(DEBUG_ISO, "%s: URB still pending", __func__); continue; /* -> skip */ case -EPIPE: - err("isochronous read stalled"); + dev_err(cs->dev, "isochronous read stalled\n"); error_hangup(bcs); continue; /* -> skip */ default: /* severe trouble */ - warn("isochronous read: %s", - get_usb_statmsg(urb->status)); + dev_warn(cs->dev, "isochronous read: %s\n", + get_usb_statmsg(urb->status)); goto error; } @@ -1284,33 +1241,44 @@ static void read_iso_tasklet(unsigned long data) totleft = urb->actual_length; for (frame = 0; totleft > 0 && frame < BAS_NUMFRAMES; frame++) { if (unlikely(urb->iso_frame_desc[frame].status)) { - warn("isochronous read: frame %d: %s", - frame, get_usb_statmsg(urb->iso_frame_desc[frame].status)); + dev_warn(cs->dev, + "isochronous read: frame %d: %s\n", + frame, + get_usb_statmsg( + urb->iso_frame_desc[frame].status)); break; } numbytes = urb->iso_frame_desc[frame].actual_length; if (unlikely(numbytes > BAS_MAXFRAME)) { - warn("isochronous read: frame %d: numbytes (%d) > BAS_MAXFRAME", - frame, numbytes); + dev_warn(cs->dev, + "isochronous read: frame %d: " + "numbytes (%d) > BAS_MAXFRAME\n", + frame, numbytes); break; } if (unlikely(numbytes > totleft)) { - warn("isochronous read: frame %d: numbytes (%d) > totleft (%d)", - frame, numbytes, totleft); + dev_warn(cs->dev, + "isochronous read: frame %d: " + "numbytes (%d) > totleft (%d)\n", + frame, numbytes, totleft); break; } offset = urb->iso_frame_desc[frame].offset; if (unlikely(offset + numbytes > BAS_INBUFSIZE)) { - warn("isochronous read: frame %d: offset (%d) + numbytes (%d) > BAS_INBUFSIZE", - frame, offset, numbytes); + dev_warn(cs->dev, + "isochronous read: frame %d: " + "offset (%d) + numbytes (%d) " + "> BAS_INBUFSIZE\n", + frame, offset, numbytes); break; } gigaset_isoc_receive(rcvbuf + offset, numbytes, bcs); totleft -= numbytes; } if (unlikely(totleft > 0)) - warn("isochronous read: %d data bytes missing", - totleft); + dev_warn(cs->dev, + "isochronous read: %d data bytes missing\n", + totleft); error: /* URB processed, resubmit */ @@ -1318,12 +1286,17 @@ static void read_iso_tasklet(unsigned long data) urb->iso_frame_desc[frame].status = 0; urb->iso_frame_desc[frame].actual_length = 0; } - urb->dev = bcs->cs->hw.bas->udev; /* clobbered by USB subsystem */ + /* urb->dev is clobbered by USB subsystem */ + urb->dev = bcs->cs->hw.bas->udev; urb->transfer_flags = URB_ISO_ASAP; urb->number_of_packets = BAS_NUMFRAMES; - if ((rc = usb_submit_urb(urb, SLAB_ATOMIC)) != 0) { - err("could not resubmit isochronous read URB: %s", - get_usb_statmsg(rc)); + spin_lock_irqsave(&cs->lock, flags); + rc = cs->connected ? usb_submit_urb(urb, SLAB_ATOMIC) : -ENODEV; + spin_unlock_irqrestore(&cs->lock, flags); + if (rc) { + dev_err(cs->dev, + "could not resubmit isochronous read URB: %s\n", + get_usb_statmsg(rc)); dump_urb(DEBUG_ISO, "resubmit iso read", urb); error_hangup(bcs); } @@ -1341,15 +1314,10 @@ static void read_iso_tasklet(unsigned long data) static void req_timeout(unsigned long data) { struct bc_state *bcs = (struct bc_state *) data; - struct bas_cardstate *ucs; + struct bas_cardstate *ucs = bcs->cs->hw.bas; int pending; unsigned long flags; - IFNULLRET(bcs); - IFNULLRET(bcs->cs); - ucs = bcs->cs->hw.bas; - IFNULLRET(ucs); - check_pending(ucs); spin_lock_irqsave(&ucs->lock, flags); @@ -1359,33 +1327,34 @@ static void req_timeout(unsigned long data) switch (pending) { case 0: /* no pending request */ - dbg(DEBUG_USBREQ, "%s: no request pending", __func__); + gig_dbg(DEBUG_USBREQ, "%s: no request pending", __func__); break; case HD_OPEN_ATCHANNEL: - err("timeout opening AT channel"); + dev_err(bcs->cs->dev, "timeout opening AT channel\n"); error_reset(bcs->cs); break; case HD_OPEN_B2CHANNEL: case HD_OPEN_B1CHANNEL: - err("timeout opening channel %d", bcs->channel + 1); + dev_err(bcs->cs->dev, "timeout opening channel %d\n", + bcs->channel + 1); error_hangup(bcs); break; case HD_CLOSE_ATCHANNEL: - err("timeout closing AT channel"); - //wake_up_interruptible(cs->initwait); - //FIXME need own wait queue? + dev_err(bcs->cs->dev, "timeout closing AT channel\n"); break; case HD_CLOSE_B2CHANNEL: case HD_CLOSE_B1CHANNEL: - err("timeout closing channel %d", bcs->channel + 1); + dev_err(bcs->cs->dev, "timeout closing channel %d\n", + bcs->channel + 1); break; default: - warn("request 0x%02x timed out, clearing", pending); + dev_warn(bcs->cs->dev, "request 0x%02x timed out, clearing\n", + pending); } } @@ -1398,18 +1367,14 @@ static void req_timeout(unsigned long data) */ static void write_ctrl_callback(struct urb *urb, struct pt_regs *regs) { - struct bas_cardstate *ucs; + struct bas_cardstate *ucs = urb->context; unsigned long flags; - IFNULLRET(urb); - IFNULLRET(urb->context); - IFNULLRET(cardstate); - - ucs = (struct bas_cardstate *) urb->context; spin_lock_irqsave(&ucs->lock, flags); if (urb->status && ucs->pending) { - err("control request 0x%02x failed: %s", - ucs->pending, get_usb_statmsg(urb->status)); + dev_err(&ucs->interface->dev, + "control request 0x%02x failed: %s\n", + ucs->pending, get_usb_statmsg(urb->status)); del_timer(&ucs->timer_ctrl); ucs->pending = 0; } @@ -1438,28 +1403,25 @@ static void write_ctrl_callback(struct urb *urb, struct pt_regs *regs) */ static int req_submit(struct bc_state *bcs, int req, int val, int timeout) { - struct bas_cardstate *ucs; + struct bas_cardstate *ucs = bcs->cs->hw.bas; int ret; unsigned long flags; - IFNULLRETVAL(bcs, -EINVAL); - IFNULLRETVAL(bcs->cs, -EINVAL); - ucs = bcs->cs->hw.bas; - IFNULLRETVAL(ucs, -EINVAL); - IFNULLRETVAL(ucs->urb_ctrl, -EINVAL); - - dbg(DEBUG_USBREQ, "-------> 0x%02x (%d)", req, val); + gig_dbg(DEBUG_USBREQ, "-------> 0x%02x (%d)", req, val); spin_lock_irqsave(&ucs->lock, flags); if (ucs->pending) { spin_unlock_irqrestore(&ucs->lock, flags); - err("submission of request 0x%02x failed: request 0x%02x still pending", - req, ucs->pending); + dev_err(bcs->cs->dev, + "submission of request 0x%02x failed: " + "request 0x%02x still pending\n", + req, ucs->pending); return -EBUSY; } if (ucs->urb_ctrl->status == -EINPROGRESS) { spin_unlock_irqrestore(&ucs->lock, flags); - err("could not submit request 0x%02x: URB busy", req); + dev_err(bcs->cs->dev, + "could not submit request 0x%02x: URB busy\n", req); return -EBUSY; } @@ -1469,19 +1431,19 @@ static int req_submit(struct bc_state *bcs, int req, int val, int timeout) ucs->dr_ctrl.wIndex = 0; ucs->dr_ctrl.wLength = 0; usb_fill_control_urb(ucs->urb_ctrl, ucs->udev, - usb_sndctrlpipe(ucs->udev, 0), - (unsigned char*) &ucs->dr_ctrl, NULL, 0, - write_ctrl_callback, ucs); + usb_sndctrlpipe(ucs->udev, 0), + (unsigned char*) &ucs->dr_ctrl, NULL, 0, + write_ctrl_callback, ucs); if ((ret = usb_submit_urb(ucs->urb_ctrl, SLAB_ATOMIC)) != 0) { - err("could not submit request 0x%02x: %s", - req, get_usb_statmsg(ret)); + dev_err(bcs->cs->dev, "could not submit request 0x%02x: %s\n", + req, get_usb_statmsg(ret)); spin_unlock_irqrestore(&ucs->lock, flags); return ret; } ucs->pending = req; if (timeout > 0) { - dbg(DEBUG_USBREQ, "setting timeout of %d/10 secs", timeout); + gig_dbg(DEBUG_USBREQ, "setting timeout of %d/10 secs", timeout); ucs->timer_ctrl.expires = jiffies + timeout * HZ / 10; ucs->timer_ctrl.data = (unsigned long) bcs; ucs->timer_ctrl.function = req_timeout; @@ -1504,19 +1466,18 @@ static int gigaset_init_bchannel(struct bc_state *bcs) { int req, ret; - IFNULLRETVAL(bcs, -EINVAL); - if ((ret = starturbs(bcs)) < 0) { - err("could not start isochronous I/O for channel %d", - bcs->channel + 1); + dev_err(bcs->cs->dev, + "could not start isochronous I/O for channel %d\n", + bcs->channel + 1); error_hangup(bcs); return ret; } req = bcs->channel ? HD_OPEN_B2CHANNEL : HD_OPEN_B1CHANNEL; if ((ret = req_submit(bcs, req, 0, BAS_TIMEOUT)) < 0) { - err("could not open channel %d: %s", - bcs->channel + 1, get_usb_statmsg(ret)); + dev_err(bcs->cs->dev, "could not open channel %d: %s\n", + bcs->channel + 1, get_usb_statmsg(ret)); stopurbs(bcs->hw.bas); error_hangup(bcs); } @@ -1537,8 +1498,6 @@ static int gigaset_close_bchannel(struct bc_state *bcs) { int req, ret; - IFNULLRETVAL(bcs, -EINVAL); - if (!(atomic_read(&bcs->cs->hw.bas->basstate) & (bcs->channel ? BS_B2OPEN : BS_B1OPEN))) { /* channel not running: just signal common.c */ @@ -1548,8 +1507,9 @@ static int gigaset_close_bchannel(struct bc_state *bcs) req = bcs->channel ? HD_CLOSE_B2CHANNEL : HD_CLOSE_B1CHANNEL; if ((ret = req_submit(bcs, req, 0, BAS_TIMEOUT)) < 0) - err("could not submit HD_CLOSE_BxCHANNEL request: %s", - get_usb_statmsg(ret)); + dev_err(bcs->cs->dev, + "could not submit HD_CLOSE_BxCHANNEL request: %s\n", + get_usb_statmsg(ret)); return ret; } @@ -1564,17 +1524,13 @@ static int gigaset_close_bchannel(struct bc_state *bcs) */ static void complete_cb(struct cardstate *cs) { - struct cmdbuf_t *cb; - - IFNULLRET(cs); - cb = cs->cmdbuf; - IFNULLRET(cb); + struct cmdbuf_t *cb = cs->cmdbuf; /* unqueue completed buffer */ cs->cmdbytes -= cs->curlen; - dbg(DEBUG_TRANSCMD | DEBUG_LOCKCMD, - "write_command: sent %u bytes, %u left", - cs->curlen, cs->cmdbytes); + gig_dbg(DEBUG_TRANSCMD|DEBUG_LOCKCMD, + "write_command: sent %u bytes, %u left", + cs->curlen, cs->cmdbytes); if ((cs->cmdbuf = cb->next) != NULL) { cs->cmdbuf->prev = NULL; cs->curlen = cs->cmdbuf->len; @@ -1600,15 +1556,9 @@ static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len); */ static void write_command_callback(struct urb *urb, struct pt_regs *regs) { - struct cardstate *cs; + struct cardstate *cs = urb->context; + struct bas_cardstate *ucs = cs->hw.bas; unsigned long flags; - struct bas_cardstate *ucs; - - IFNULLRET(urb); - cs = (struct cardstate *) urb->context; - IFNULLRET(cs); - ucs = cs->hw.bas; - IFNULLRET(ucs); /* check status */ switch (urb->status) { @@ -1618,22 +1568,27 @@ static void write_command_callback(struct urb *urb, struct pt_regs *regs) case -ECONNRESET: /* canceled (async) */ case -EINPROGRESS: /* pending */ /* ignore silently */ - dbg(DEBUG_USBREQ, - "%s: %s", __func__, get_usb_statmsg(urb->status)); + gig_dbg(DEBUG_USBREQ, "%s: %s", + __func__, get_usb_statmsg(urb->status)); return; default: /* any failure */ if (++ucs->retry_cmd_out > BAS_RETRY) { - warn("command write: %s, giving up after %d retries", - get_usb_statmsg(urb->status), ucs->retry_cmd_out); + dev_warn(cs->dev, + "command write: %s, " + "giving up after %d retries\n", + get_usb_statmsg(urb->status), + ucs->retry_cmd_out); break; } if (cs->cmdbuf == NULL) { - warn("command write: %s, cannot retry - cmdbuf gone", - get_usb_statmsg(urb->status)); + dev_warn(cs->dev, + "command write: %s, " + "cannot retry - cmdbuf gone\n", + get_usb_statmsg(urb->status)); break; } - notice("command write: %s, retry %d", - get_usb_statmsg(urb->status), ucs->retry_cmd_out); + dev_notice(cs->dev, "command write: %s, retry %d\n", + get_usb_statmsg(urb->status), ucs->retry_cmd_out); if (atwrite_submit(cs, cs->cmdbuf->buf, cs->cmdbuf->len) >= 0) /* resubmitted - bypass regular exit block */ return; @@ -1655,13 +1610,9 @@ static void write_command_callback(struct urb *urb, struct pt_regs *regs) static void atrdy_timeout(unsigned long data) { struct cardstate *cs = (struct cardstate *) data; - struct bas_cardstate *ucs; - - IFNULLRET(cs); - ucs = cs->hw.bas; - IFNULLRET(ucs); + struct bas_cardstate *ucs = cs->hw.bas; - warn("timeout waiting for HD_READY_SEND_ATDATA"); + dev_warn(cs->dev, "timeout waiting for HD_READY_SEND_ATDATA\n"); /* fake the missing signal - what else can I do? */ update_basstate(ucs, BS_ATREADY, BS_ATTIMER); @@ -1682,18 +1633,15 @@ static void atrdy_timeout(unsigned long data) */ static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len) { - struct bas_cardstate *ucs; + struct bas_cardstate *ucs = cs->hw.bas; + unsigned long flags; int ret; - IFNULLRETVAL(cs, -EFAULT); - ucs = cs->hw.bas; - IFNULLRETVAL(ucs, -EFAULT); - IFNULLRETVAL(ucs->urb_cmd_out, -EFAULT); - - dbg(DEBUG_USBREQ, "-------> HD_WRITE_ATMESSAGE (%d)", len); + gig_dbg(DEBUG_USBREQ, "-------> HD_WRITE_ATMESSAGE (%d)", len); if (ucs->urb_cmd_out->status == -EINPROGRESS) { - err("could not submit HD_WRITE_ATMESSAGE: URB busy"); + dev_err(cs->dev, + "could not submit HD_WRITE_ATMESSAGE: URB busy\n"); return -EBUSY; } @@ -1707,9 +1655,13 @@ static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len) (unsigned char*) &ucs->dr_cmd_out, buf, len, write_command_callback, cs); - if ((ret = usb_submit_urb(ucs->urb_cmd_out, SLAB_ATOMIC)) != 0) { - err("could not submit HD_WRITE_ATMESSAGE: %s", - get_usb_statmsg(ret)); + spin_lock_irqsave(&cs->lock, flags); + ret = cs->connected ? usb_submit_urb(ucs->urb_cmd_out, SLAB_ATOMIC) : -ENODEV; + spin_unlock_irqrestore(&cs->lock, flags); + + if (ret) { + dev_err(cs->dev, "could not submit HD_WRITE_ATMESSAGE: %s\n", + get_usb_statmsg(ret)); return ret; } @@ -1718,8 +1670,8 @@ static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len) /* start timeout if necessary */ if (!(atomic_read(&ucs->basstate) & BS_ATTIMER)) { - dbg(DEBUG_OUTPUT, - "setting ATREADY timeout of %d/10 secs", ATRDY_TIMEOUT); + gig_dbg(DEBUG_OUTPUT, "setting ATREADY timeout of %d/10 secs", + ATRDY_TIMEOUT); ucs->timer_atrdy.expires = jiffies + ATRDY_TIMEOUT * HZ / 10; ucs->timer_atrdy.data = (unsigned long) cs; ucs->timer_atrdy.function = atrdy_timeout; @@ -1740,21 +1692,17 @@ static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len) static int start_cbsend(struct cardstate *cs) { struct cmdbuf_t *cb; - struct bas_cardstate *ucs; + struct bas_cardstate *ucs = cs->hw.bas; unsigned long flags; int rc; int retval = 0; - IFNULLRETVAL(cs, -EFAULT); - ucs = cs->hw.bas; - IFNULLRETVAL(ucs, -EFAULT); - /* check if AT channel is open */ if (!(atomic_read(&ucs->basstate) & BS_ATOPEN)) { - dbg(DEBUG_TRANSCMD | DEBUG_LOCKCMD, "AT channel not open"); + gig_dbg(DEBUG_TRANSCMD|DEBUG_LOCKCMD, "AT channel not open"); rc = req_submit(cs->bcs, HD_OPEN_ATCHANNEL, 0, BAS_TIMEOUT); if (rc < 0) { - err("could not open AT channel"); + dev_err(cs->dev, "could not open AT channel\n"); /* flush command queue */ spin_lock_irqsave(&cs->cmdlock, flags); while (cs->cmdbuf != NULL) @@ -1792,27 +1740,23 @@ static int start_cbsend(struct cardstate *cs) * cs controller state structure * buf command string to send * len number of bytes to send (max. IF_WRITEBUF) - * wake_tasklet tasklet to run when transmission is completed (NULL if none) + * wake_tasklet tasklet to run when transmission is completed + * (NULL if none) * return value: * number of bytes queued on success * error code < 0 on error */ static int gigaset_write_cmd(struct cardstate *cs, - const unsigned char *buf, int len, - struct tasklet_struct *wake_tasklet) + const unsigned char *buf, int len, + struct tasklet_struct *wake_tasklet) { struct cmdbuf_t *cb; unsigned long flags; int status; gigaset_dbg_buffer(atomic_read(&cs->mstate) != MS_LOCKED ? - DEBUG_TRANSCMD : DEBUG_LOCKCMD, - "CMD Transmit", len, buf, 0); - - if (!atomic_read(&cs->connected)) { - err("%s: not connected", __func__); - return -ENODEV; - } + DEBUG_TRANSCMD : DEBUG_LOCKCMD, + "CMD Transmit", len, buf); if (len <= 0) return 0; /* nothing to do */ @@ -1820,7 +1764,7 @@ static int gigaset_write_cmd(struct cardstate *cs, if (len > IF_WRITEBUF) len = IF_WRITEBUF; if (!(cb = kmalloc(sizeof(struct cmdbuf_t) + len, GFP_ATOMIC))) { - err("%s: out of memory", __func__); + dev_err(cs->dev, "%s: out of memory\n", __func__); return -ENOMEM; } @@ -1849,7 +1793,8 @@ static int gigaset_write_cmd(struct cardstate *cs, /* gigaset_write_room * tty_driver.write_room interface routine - * return number of characters the driver will accept to be written via gigaset_write_cmd + * return number of characters the driver will accept to be written via + * gigaset_write_cmd * parameter: * controller state structure * return value: @@ -1947,7 +1892,7 @@ static int gigaset_initbcshw(struct bc_state *bcs) return 0; } tasklet_init(&ubc->sent_tasklet, - &write_iso_tasklet, (unsigned long) bcs); + &write_iso_tasklet, (unsigned long) bcs); spin_lock_init(&ubc->isoinlock); for (i = 0; i < BAS_INURBS; ++i) @@ -1968,7 +1913,7 @@ static int gigaset_initbcshw(struct bc_state *bcs) ubc->shared0s = 0; ubc->stolen0s = 0; tasklet_init(&ubc->rcvd_tasklet, - &read_iso_tasklet, (unsigned long) bcs); + &read_iso_tasklet, (unsigned long) bcs); return 1; } @@ -2027,57 +1972,56 @@ static int gigaset_initcshw(struct cardstate *cs) */ static void freeurbs(struct cardstate *cs) { - struct bas_cardstate *ucs; + struct bas_cardstate *ucs = cs->hw.bas; struct bas_bc_state *ubc; int i, j; - IFNULLRET(cs); - ucs = cs->hw.bas; - IFNULLRET(ucs); - for (j = 0; j < 2; ++j) { ubc = cs->bcs[j].hw.bas; - IFNULLCONT(ubc); for (i = 0; i < BAS_OUTURBS; ++i) if (ubc->isoouturbs[i].urb) { usb_kill_urb(ubc->isoouturbs[i].urb); - dbg(DEBUG_INIT, - "%s: isoc output URB %d/%d unlinked", - __func__, j, i); + gig_dbg(DEBUG_INIT, + "%s: isoc output URB %d/%d unlinked", + __func__, j, i); usb_free_urb(ubc->isoouturbs[i].urb); ubc->isoouturbs[i].urb = NULL; } for (i = 0; i < BAS_INURBS; ++i) if (ubc->isoinurbs[i]) { usb_kill_urb(ubc->isoinurbs[i]); - dbg(DEBUG_INIT, - "%s: isoc input URB %d/%d unlinked", - __func__, j, i); + gig_dbg(DEBUG_INIT, + "%s: isoc input URB %d/%d unlinked", + __func__, j, i); usb_free_urb(ubc->isoinurbs[i]); ubc->isoinurbs[i] = NULL; } } if (ucs->urb_int_in) { usb_kill_urb(ucs->urb_int_in); - dbg(DEBUG_INIT, "%s: interrupt input URB unlinked", __func__); + gig_dbg(DEBUG_INIT, "%s: interrupt input URB unlinked", + __func__); usb_free_urb(ucs->urb_int_in); ucs->urb_int_in = NULL; } if (ucs->urb_cmd_out) { usb_kill_urb(ucs->urb_cmd_out); - dbg(DEBUG_INIT, "%s: command output URB unlinked", __func__); + gig_dbg(DEBUG_INIT, "%s: command output URB unlinked", + __func__); usb_free_urb(ucs->urb_cmd_out); ucs->urb_cmd_out = NULL; } if (ucs->urb_cmd_in) { usb_kill_urb(ucs->urb_cmd_in); - dbg(DEBUG_INIT, "%s: command input URB unlinked", __func__); + gig_dbg(DEBUG_INIT, "%s: command input URB unlinked", + __func__); usb_free_urb(ucs->urb_cmd_in); ucs->urb_cmd_in = NULL; } if (ucs->urb_ctrl) { usb_kill_urb(ucs->urb_ctrl); - dbg(DEBUG_INIT, "%s: control output URB unlinked", __func__); + gig_dbg(DEBUG_INIT, "%s: control output URB unlinked", + __func__); usb_free_urb(ucs->urb_ctrl); ucs->urb_ctrl = NULL; } @@ -2099,12 +2043,10 @@ static int gigaset_probe(struct usb_interface *interface, int i, j; int ret; - IFNULLRETVAL(udev, -ENODEV); - - dbg(DEBUG_ANY, - "%s: Check if device matches .. (Vendor: 0x%x, Product: 0x%x)", - __func__, le16_to_cpu(udev->descriptor.idVendor), - le16_to_cpu(udev->descriptor.idProduct)); + gig_dbg(DEBUG_ANY, + "%s: Check if device matches .. (Vendor: 0x%x, Product: 0x%x)", + __func__, le16_to_cpu(udev->descriptor.idVendor), + le16_to_cpu(udev->descriptor.idProduct)); /* See if the device offered us matches what we can accept */ if ((le16_to_cpu(udev->descriptor.idVendor) != USB_GIGA_VENDOR_ID) || @@ -2112,20 +2054,21 @@ static int gigaset_probe(struct usb_interface *interface, le16_to_cpu(udev->descriptor.idProduct) != USB_4175_PRODUCT_ID && le16_to_cpu(udev->descriptor.idProduct) != USB_SX303_PRODUCT_ID && le16_to_cpu(udev->descriptor.idProduct) != USB_SX353_PRODUCT_ID)) { - dbg(DEBUG_ANY, "%s: unmatched ID - exiting", __func__); + gig_dbg(DEBUG_ANY, "%s: unmatched ID - exiting", __func__); return -ENODEV; } /* set required alternate setting */ hostif = interface->cur_altsetting; if (hostif->desc.bAlternateSetting != 3) { - dbg(DEBUG_ANY, - "%s: wrong alternate setting %d - trying to switch", - __func__, hostif->desc.bAlternateSetting); + gig_dbg(DEBUG_ANY, + "%s: wrong alternate setting %d - trying to switch", + __func__, hostif->desc.bAlternateSetting); if (usb_set_interface(udev, hostif->desc.bInterfaceNumber, 3) < 0) { - warn("usb_set_interface failed, device %d interface %d altsetting %d", - udev->devnum, hostif->desc.bInterfaceNumber, - hostif->desc.bAlternateSetting); + dev_warn(&udev->dev, "usb_set_interface failed, " + "device %d interface %d altsetting %d\n", + udev->devnum, hostif->desc.bInterfaceNumber, + hostif->desc.bAlternateSetting); return -ENODEV; } hostif = interface->cur_altsetting; @@ -2134,23 +2077,28 @@ static int gigaset_probe(struct usb_interface *interface, /* Reject application specific interfaces */ if (hostif->desc.bInterfaceClass != 255) { - warn("%s: bInterfaceClass == %d", - __func__, hostif->desc.bInterfaceClass); + dev_warn(&udev->dev, "%s: bInterfaceClass == %d\n", + __func__, hostif->desc.bInterfaceClass); return -ENODEV; } - info("%s: Device matched (Vendor: 0x%x, Product: 0x%x)", - __func__, le16_to_cpu(udev->descriptor.idVendor), - le16_to_cpu(udev->descriptor.idProduct)); + dev_info(&udev->dev, + "%s: Device matched (Vendor: 0x%x, Product: 0x%x)\n", + __func__, le16_to_cpu(udev->descriptor.idVendor), + le16_to_cpu(udev->descriptor.idProduct)); cs = gigaset_getunassignedcs(driver); if (!cs) { - err("%s: no free cardstate", __func__); + dev_err(&udev->dev, "no free cardstate\n"); return -ENODEV; } ucs = cs->hw.bas; + + /* save off device structure ptrs for later use */ + usb_get_dev(udev); ucs->udev = udev; ucs->interface = interface; + cs->dev = &interface->dev; /* allocate URBs: * - one for the interrupt pipe @@ -2159,22 +2107,22 @@ static int gigaset_probe(struct usb_interface *interface, */ ucs->urb_int_in = usb_alloc_urb(0, SLAB_KERNEL); if (!ucs->urb_int_in) { - err("No free urbs available"); + dev_err(cs->dev, "no free urbs available\n"); goto error; } ucs->urb_cmd_in = usb_alloc_urb(0, SLAB_KERNEL); if (!ucs->urb_cmd_in) { - err("No free urbs available"); + dev_err(cs->dev, "no free urbs available\n"); goto error; } ucs->urb_cmd_out = usb_alloc_urb(0, SLAB_KERNEL); if (!ucs->urb_cmd_out) { - err("No free urbs available"); + dev_err(cs->dev, "no free urbs available\n"); goto error; } ucs->urb_ctrl = usb_alloc_urb(0, SLAB_KERNEL); if (!ucs->urb_ctrl) { - err("No free urbs available"); + dev_err(cs->dev, "no free urbs available\n"); goto error; } @@ -2184,7 +2132,7 @@ static int gigaset_probe(struct usb_interface *interface, ubc->isoouturbs[i].urb = usb_alloc_urb(BAS_NUMFRAMES, SLAB_KERNEL); if (!ubc->isoouturbs[i].urb) { - err("No free urbs available"); + dev_err(cs->dev, "no free urbs available\n"); goto error; } } @@ -2192,7 +2140,7 @@ static int gigaset_probe(struct usb_interface *interface, ubc->isoinurbs[i] = usb_alloc_urb(BAS_NUMFRAMES, SLAB_KERNEL); if (!ubc->isoinurbs[i]) { - err("No free urbs available"); + dev_err(cs->dev, "no free urbs available\n"); goto error; } } @@ -2204,13 +2152,14 @@ static int gigaset_probe(struct usb_interface *interface, /* Fill the interrupt urb and send it to the core */ endpoint = &hostif->endpoint[0].desc; usb_fill_int_urb(ucs->urb_int_in, udev, - usb_rcvintpipe(udev, - (endpoint->bEndpointAddress) & 0x0f), - ucs->int_in_buf, 3, read_int_callback, cs, - endpoint->bInterval); + usb_rcvintpipe(udev, + (endpoint->bEndpointAddress) & 0x0f), + ucs->int_in_buf, 3, read_int_callback, cs, + endpoint->bInterval); ret = usb_submit_urb(ucs->urb_int_in, SLAB_KERNEL); if (ret) { - err("could not submit interrupt URB: %s", get_usb_statmsg(ret)); + dev_err(cs->dev, "could not submit interrupt URB: %s\n", + get_usb_statmsg(ret)); goto error; } @@ -2221,18 +2170,18 @@ static int gigaset_probe(struct usb_interface *interface, /* tell common part that the device is ready */ if (startmode == SM_LOCKED) atomic_set(&cs->mstate, MS_LOCKED); - if (!gigaset_start(cs)) - goto error; /* save address of controller structure */ usb_set_intfdata(interface, cs); - /* set up device sysfs */ - gigaset_init_dev_sysfs(interface); + if (!gigaset_start(cs)) + goto error; + return 0; error: freeurbs(cs); + usb_set_intfdata(interface, NULL); gigaset_unassign(cs); return -ENODEV; } @@ -2245,23 +2194,22 @@ static void gigaset_disconnect(struct usb_interface *interface) struct cardstate *cs; struct bas_cardstate *ucs; - /* clear device sysfs */ - gigaset_free_dev_sysfs(interface); - cs = usb_get_intfdata(interface); - usb_set_intfdata(interface, NULL); - IFNULLRET(cs); ucs = cs->hw.bas; - IFNULLRET(ucs); - info("disconnecting GigaSet base"); + dev_info(cs->dev, "disconnecting Gigaset base\n"); gigaset_stop(cs); freeurbs(cs); + usb_set_intfdata(interface, NULL); kfree(ucs->rcvbuf); ucs->rcvbuf = NULL; ucs->rcvbuf_size = 0; atomic_set(&ucs->basstate, 0); + usb_put_dev(ucs->udev); + ucs->interface = NULL; + ucs->udev = NULL; + cs->dev = NULL; gigaset_unassign(cs); } @@ -2293,13 +2241,14 @@ static int __init bas_gigaset_init(void) /* allocate memory for our driver state and intialize it */ if ((driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS, - GIGASET_MODULENAME, GIGASET_DEVNAME, - GIGASET_DEVFSNAME, &gigops, - THIS_MODULE)) == NULL) + GIGASET_MODULENAME, GIGASET_DEVNAME, + GIGASET_DEVFSNAME, &gigops, + THIS_MODULE)) == NULL) goto error; /* allocate memory for our device state and intialize it */ - cardstate = gigaset_initcs(driver, 2, 0, 0, cidmode, GIGASET_MODULENAME); + cardstate = gigaset_initcs(driver, 2, 0, 0, cidmode, + GIGASET_MODULENAME); if (!cardstate) goto error; @@ -2329,19 +2278,18 @@ error: if (cardstate) static void __exit bas_gigaset_exit(void) { gigaset_blockdriver(driver); /* => probe will fail - * => no gigaset_start any more - */ + * => no gigaset_start any more + */ gigaset_shutdown(cardstate); /* from now on, no isdn callback should be possible */ if (atomic_read(&cardstate->hw.bas->basstate) & BS_ATOPEN) { - dbg(DEBUG_ANY, "closing AT channel"); + gig_dbg(DEBUG_ANY, "closing AT channel"); if (req_submit(cardstate->bcs, - HD_CLOSE_ATCHANNEL, 0, BAS_TIMEOUT) >= 0) { - /* successfully submitted - wait for completion */ - //wait_event_interruptible(cs->initwait, !cs->hw.bas->pending); - //FIXME need own wait queue? wakeup? + HD_CLOSE_ATCHANNEL, 0, BAS_TIMEOUT) >= 0) { + /* successfully submitted */ + //FIXME wait for completion? } } |
