diff options
Diffstat (limited to 'sound/usb/usx2y/usb_stream.c')
| -rw-r--r-- | sound/usb/usx2y/usb_stream.c | 238 |
1 files changed, 130 insertions, 108 deletions
diff --git a/sound/usb/usx2y/usb_stream.c b/sound/usb/usx2y/usb_stream.c index bf618e1500ac..3122cf653273 100644 --- a/sound/usb/usx2y/usb_stream.c +++ b/sound/usb/usx2y/usb_stream.c @@ -1,19 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.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 of the License, 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. */ #include <linux/usb.h> @@ -21,12 +8,12 @@ #include "usb_stream.h" - /* setup */ -static unsigned usb_stream_next_packet_size(struct usb_stream_kernel *sk) +static unsigned int usb_stream_next_packet_size(struct usb_stream_kernel *sk) { struct usb_stream *s = sk->s; + sk->out_phase_peeked = (sk->out_phase & 0xffff) + sk->freqn; return (sk->out_phase_peeked >> 16) * s->cfg.frame_size; } @@ -38,6 +25,7 @@ static void playback_prep_freqn(struct usb_stream_kernel *sk, struct urb *urb) for (pack = 0; pack < sk->n_o_ps; pack++) { int l = usb_stream_next_packet_size(sk); + if (s->idle_outsize + lb + l > s->period_size) goto check; @@ -46,29 +34,28 @@ static void playback_prep_freqn(struct usb_stream_kernel *sk, struct urb *urb) urb->iso_frame_desc[pack].length = l; lb += l; } - snd_printdd(KERN_DEBUG "%i\n", lb); check: urb->number_of_packets = pack; urb->transfer_buffer_length = lb; s->idle_outsize += lb - s->period_size; - snd_printdd(KERN_DEBUG "idle=%i ul=%i ps=%i\n", s->idle_outsize, - lb, s->period_size); } -static void init_pipe_urbs(struct usb_stream_kernel *sk, unsigned use_packsize, - struct urb **urbs, char *transfer, - struct usb_device *dev, int pipe) +static int init_pipe_urbs(struct usb_stream_kernel *sk, + unsigned int use_packsize, + struct urb **urbs, char *transfer, + struct usb_device *dev, int pipe) { int u, p; int maxpacket = use_packsize ? - use_packsize : usb_maxpacket(dev, pipe, usb_pipeout(pipe)); + use_packsize : usb_maxpacket(dev, pipe); int transfer_length = maxpacket * sk->n_o_ps; for (u = 0; u < USB_STREAM_NURBS; ++u, transfer += transfer_length) { struct urb *urb = urbs[u]; struct usb_iso_packet_descriptor *desc; + urb->transfer_buffer = transfer; urb->dev = dev; urb->pipe = pipe; @@ -77,6 +64,8 @@ static void init_pipe_urbs(struct usb_stream_kernel *sk, unsigned use_packsize, urb->interval = 1; if (usb_pipeout(pipe)) continue; + if (usb_urb_ep_type_check(urb)) + return -EINVAL; urb->transfer_buffer_length = transfer_length; desc = urb->iso_frame_desc; @@ -87,33 +76,41 @@ static void init_pipe_urbs(struct usb_stream_kernel *sk, unsigned use_packsize, desc[p].length = maxpacket; } } + + return 0; } -static void init_urbs(struct usb_stream_kernel *sk, unsigned use_packsize, - struct usb_device *dev, int in_pipe, int out_pipe) +static int init_urbs(struct usb_stream_kernel *sk, unsigned int use_packsize, + struct usb_device *dev, int in_pipe, int out_pipe) { struct usb_stream *s = sk->s; - char *indata = (char *)s + sizeof(*s) + - sizeof(struct usb_stream_packet) * - s->inpackets; + char *indata = + (char *)s + sizeof(*s) + sizeof(struct usb_stream_packet) * s->inpackets; int u; for (u = 0; u < USB_STREAM_NURBS; ++u) { sk->inurb[u] = usb_alloc_urb(sk->n_o_ps, GFP_KERNEL); + if (!sk->inurb[u]) + return -ENOMEM; + sk->outurb[u] = usb_alloc_urb(sk->n_o_ps, GFP_KERNEL); + if (!sk->outurb[u]) + return -ENOMEM; } - init_pipe_urbs(sk, use_packsize, sk->inurb, indata, dev, in_pipe); - init_pipe_urbs(sk, use_packsize, sk->outurb, sk->write_page, dev, - out_pipe); -} + if (init_pipe_urbs(sk, use_packsize, sk->inurb, indata, dev, in_pipe) || + init_pipe_urbs(sk, use_packsize, sk->outurb, sk->write_page, dev, + out_pipe)) + return -EINVAL; + return 0; +} /* * convert a sampling rate into our full speed format (fs/1000 in Q16.16) * this will overflow at approx 524 kHz */ -static inline unsigned get_usb_full_speed_rate(unsigned rate) +static inline unsigned int get_usb_full_speed_rate(unsigned int rate) { return ((rate << 13) + 62) / 125; } @@ -122,7 +119,7 @@ static inline unsigned get_usb_full_speed_rate(unsigned rate) * convert a sampling rate into USB high speed format (fs/8000 in Q16.16) * this will overflow at approx 4 MHz */ -static inline unsigned get_usb_high_speed_rate(unsigned rate) +static inline unsigned int get_usb_high_speed_rate(unsigned int rate) { return ((rate << 10) + 62) / 125; } @@ -130,7 +127,7 @@ static inline unsigned get_usb_high_speed_rate(unsigned rate) void usb_stream_free(struct usb_stream_kernel *sk) { struct usb_stream *s; - unsigned u; + unsigned int u; for (u = 0; u < USB_STREAM_NURBS; ++u) { usb_free_urb(sk->inurb[u]); @@ -143,30 +140,35 @@ void usb_stream_free(struct usb_stream_kernel *sk) if (!s) return; - free_pages((unsigned long)sk->write_page, get_order(s->write_size)); - sk->write_page = NULL; - free_pages((unsigned long)s, get_order(s->read_size)); + if (sk->write_page) { + free_pages_exact(sk->write_page, s->write_size); + sk->write_page = NULL; + } + + free_pages_exact(s, s->read_size); sk->s = NULL; } struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk, struct usb_device *dev, - unsigned in_endpoint, unsigned out_endpoint, - unsigned sample_rate, unsigned use_packsize, - unsigned period_frames, unsigned frame_size) + unsigned int in_endpoint, + unsigned int out_endpoint, + unsigned int sample_rate, + unsigned int use_packsize, + unsigned int period_frames, + unsigned int frame_size) { int packets, max_packsize; int in_pipe, out_pipe; int read_size = sizeof(struct usb_stream); int write_size; int usb_frames = dev->speed == USB_SPEED_HIGH ? 8000 : 1000; - int pg; in_pipe = usb_rcvisocpipe(dev, in_endpoint); out_pipe = usb_sndisocpipe(dev, out_endpoint); max_packsize = use_packsize ? - use_packsize : usb_maxpacket(dev, in_pipe, 0); + use_packsize : usb_maxpacket(dev, in_pipe); /* t_period = period_frames / sample_rate @@ -182,18 +184,18 @@ struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk, read_size += packets * USB_STREAM_URBDEPTH * (max_packsize + sizeof(struct usb_stream_packet)); - max_packsize = usb_maxpacket(dev, out_pipe, 1); + max_packsize = usb_maxpacket(dev, out_pipe); write_size = max_packsize * packets * USB_STREAM_URBDEPTH; if (read_size >= 256*PAGE_SIZE || write_size >= 256*PAGE_SIZE) { - snd_printk(KERN_WARNING "a size exceeds 128*PAGE_SIZE\n"); + dev_warn(&dev->dev, "%s: a size exceeds 128*PAGE_SIZE\n", __func__); goto out; } - pg = get_order(read_size); - sk->s = (void *) __get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO, pg); + sk->s = alloc_pages_exact(read_size, + GFP_KERNEL | __GFP_ZERO | __GFP_NOWARN); if (!sk->s) { - snd_printk(KERN_WARNING "couldn't __get_free_pages()\n"); + dev_warn(&dev->dev, "us122l: couldn't allocate read buffer\n"); goto out; } sk->s->cfg.version = USB_STREAM_INTERFACE_VERSION; @@ -208,12 +210,11 @@ struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk, sk->s->period_size = frame_size * period_frames; sk->s->write_size = write_size; - pg = get_order(write_size); - sk->write_page = - (void *)__get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO, pg); + sk->write_page = alloc_pages_exact(write_size, + GFP_KERNEL | __GFP_ZERO | __GFP_NOWARN); if (!sk->write_page) { - snd_printk(KERN_WARNING "couldn't __get_free_pages()\n"); + dev_warn(&dev->dev, "us122l: couldn't allocate write buffer\n"); usb_stream_free(sk); return NULL; } @@ -224,21 +225,26 @@ struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk, else sk->freqn = get_usb_high_speed_rate(sample_rate); - init_urbs(sk, use_packsize, dev, in_pipe, out_pipe); + if (init_urbs(sk, use_packsize, dev, in_pipe, out_pipe) < 0) { + usb_stream_free(sk); + return NULL; + } + sk->s->state = usb_stream_stopped; out: return sk->s; } - /* start */ static bool balance_check(struct usb_stream_kernel *sk, struct urb *urb) { bool r; + if (unlikely(urb->status)) { if (urb->status != -ESHUTDOWN && urb->status != -ENOENT) - snd_printk(KERN_WARNING "status=%i\n", urb->status); + dev_warn(&sk->dev->dev, "%s: status=%i\n", __func__, + urb->status); sk->iso_frame_balance = 0x7FFFFFFF; return false; } @@ -266,6 +272,7 @@ static void subs_set_complete(struct urb **urbs, void (*complete)(struct urb *)) for (u = 0; u < USB_STREAM_NURBS; u++) { struct urb *urb = urbs[u]; + urb->complete = complete; } } @@ -283,6 +290,7 @@ static int usb_stream_prepare_playback(struct usb_stream_kernel *sk, for (; s->sync_packet < 0; ++p, ++s->sync_packet) { struct urb *ii = sk->completed_inurb; + id = ii->iso_frame_desc + ii->number_of_packets + s->sync_packet; l = id->actual_length; @@ -308,17 +316,18 @@ static int usb_stream_prepare_playback(struct usb_stream_kernel *sk, check_ok: s->sync_packet -= inurb->number_of_packets; if (unlikely(s->sync_packet < -2 || s->sync_packet > 0)) { - snd_printk(KERN_WARNING "invalid sync_packet = %i;" - " p=%i nop=%i %i %x %x %x > %x\n", - s->sync_packet, p, inurb->number_of_packets, - s->idle_outsize + lb + l, - s->idle_outsize, lb, l, - s->period_size); + dev_warn(&sk->dev->dev, + "%s: invalid sync_packet = %i; p=%i nop=%i %i %x %x %x > %x\n", + __func__, + s->sync_packet, p, inurb->number_of_packets, + s->idle_outsize + lb + l, + s->idle_outsize, lb, l, + s->period_size); return -1; } if (unlikely(lb % s->cfg.frame_size)) { - snd_printk(KERN_WARNING"invalid outsize = %i\n", - lb); + dev_warn(&sk->dev->dev, "%s: invalid outsize = %i\n", + __func__, lb); return -1; } s->idle_outsize += lb - s->period_size; @@ -327,7 +336,7 @@ check_ok: if (s->idle_outsize <= 0) return 0; - snd_printk(KERN_WARNING "idle=%i\n", s->idle_outsize); + dev_warn(&sk->dev->dev, "%s: idle=%i\n", __func__, s->idle_outsize); return -1; } @@ -350,22 +359,25 @@ static int submit_urbs(struct usb_stream_kernel *sk, struct urb *inurb, struct urb *outurb) { int err; + prepare_inurb(sk->idle_outurb->number_of_packets, sk->idle_inurb); err = usb_submit_urb(sk->idle_inurb, GFP_ATOMIC); - if (err < 0) { - snd_printk(KERN_ERR "%i\n", err); - return err; - } + if (err < 0) + goto report_failure; + sk->idle_inurb = sk->completed_inurb; sk->completed_inurb = inurb; err = usb_submit_urb(sk->idle_outurb, GFP_ATOMIC); - if (err < 0) { - snd_printk(KERN_ERR "%i\n", err); - return err; - } + if (err < 0) + goto report_failure; + sk->idle_outurb = sk->completed_outurb; sk->completed_outurb = outurb; return 0; + +report_failure: + dev_err(&sk->dev->dev, "%s error: %i\n", __func__, err); + return err; } #ifdef DEBUG_LOOP_BACK @@ -411,8 +423,8 @@ loop: } if (iu == sk->completed_inurb) { if (l != s->period_size) - printk(KERN_DEBUG"%s:%i %i\n", __func__, __LINE__, - l/(int)s->cfg.frame_size); + dev_dbg(&sk->dev->dev, "%s:%i %i\n", __func__, __LINE__, + l/(int)s->cfg.frame_size); return; } @@ -444,10 +456,11 @@ static void stream_idle(struct usb_stream_kernel *sk, for (p = 0; p < inurb->number_of_packets; ++p) { struct usb_iso_packet_descriptor *id = inurb->iso_frame_desc; + l = id[p].actual_length; if (unlikely(l == 0 || id[p].status)) { - snd_printk(KERN_WARNING "underrun, status=%u\n", - id[p].status); + dev_warn(&sk->dev->dev, "%s: underrun, status=%u\n", + __func__, id[p].status); goto err_out; } s->inpacket_head++; @@ -468,8 +481,8 @@ static void stream_idle(struct usb_stream_kernel *sk, } s->idle_insize += urb_size - s->period_size; if (s->idle_insize < 0) { - snd_printk(KERN_WARNING "%i\n", - (s->idle_insize)/(int)s->cfg.frame_size); + dev_warn(&sk->dev->dev, "%s error: %i\n", __func__, + (s->idle_insize)/(int)s->cfg.frame_size); goto err_out; } s->insize_done += urb_size; @@ -500,6 +513,7 @@ err_out: static void i_capture_idle(struct urb *urb) { struct usb_stream_kernel *sk = urb->context; + if (balance_capture(sk, urb)) stream_idle(sk, urb, sk->i_urb); } @@ -507,6 +521,7 @@ static void i_capture_idle(struct urb *urb) static void i_playback_idle(struct urb *urb) { struct usb_stream_kernel *sk = urb->context; + if (balance_playback(sk, urb)) stream_idle(sk, sk->i_urb, urb); } @@ -515,10 +530,12 @@ static void stream_start(struct usb_stream_kernel *sk, struct urb *inurb, struct urb *outurb) { struct usb_stream *s = sk->s; + if (s->state >= usb_stream_sync1) { int l, p, max_diff, max_diff_0; int urb_size = 0; - unsigned frames_per_packet, min_frames = 0; + unsigned int frames_per_packet, min_frames = 0; + frames_per_packet = (s->period_size - s->idle_insize); frames_per_packet <<= 8; frames_per_packet /= @@ -533,32 +550,30 @@ static void stream_start(struct usb_stream_kernel *sk, max_diff = max_diff_0; for (p = 0; p < inurb->number_of_packets; ++p) { int diff; + l = inurb->iso_frame_desc[p].actual_length; urb_size += l; min_frames += frames_per_packet; diff = urb_size - (min_frames >> 8) * s->cfg.frame_size; - if (diff < max_diff) { - snd_printdd(KERN_DEBUG "%i %i %i %i\n", - s->insize_done, - urb_size / (int)s->cfg.frame_size, - inurb->number_of_packets, diff); + if (diff < max_diff) max_diff = diff; - } } s->idle_insize -= max_diff - max_diff_0; s->idle_insize += urb_size - s->period_size; if (s->idle_insize < 0) { - snd_printk(KERN_WARNING "%i %i %i\n", - s->idle_insize, urb_size, s->period_size); + dev_warn(&sk->dev->dev, "%s idle_insize: %i %i %i\n", + __func__, + s->idle_insize, urb_size, s->period_size); return; } else if (s->idle_insize == 0) { s->next_inpacket_split = (s->inpacket_head + 1) % s->inpackets; s->next_inpacket_split_at = 0; } else { - unsigned split = s->inpacket_head; + unsigned int split = s->inpacket_head; + l = s->idle_insize; while (l > s->inpacket[split].length) { l -= s->inpacket[split].length; @@ -600,16 +615,17 @@ static void i_capture_start(struct urb *urb) int empty = 0; if (urb->status) { - snd_printk(KERN_WARNING "status=%i\n", urb->status); + dev_warn(&sk->dev->dev, "%s: status=%i\n", __func__, urb->status); return; } for (p = 0; p < urb->number_of_packets; ++p) { int l = id[p].actual_length; + if (l < s->cfg.frame_size) { ++empty; if (s->state >= usb_stream_sync0) { - snd_printk(KERN_WARNING "%i\n", l); + dev_warn(&sk->dev->dev, "%s: length %i\n", __func__, l); return; } } @@ -621,13 +637,14 @@ static void i_capture_start(struct urb *urb) } #ifdef SHOW_EMPTY if (empty) { - printk(KERN_DEBUG"%s:%i: %i", __func__, __LINE__, - urb->iso_frame_desc[0].actual_length); + dev_dbg(&sk->dev->dev, "%s:%i: %i", __func__, __LINE__, + urb->iso_frame_desc[0].actual_length); for (pack = 1; pack < urb->number_of_packets; ++pack) { int l = urb->iso_frame_desc[pack].actual_length; - printk(" %i", l); + + printk(KERN_CONT " %i", l); } - printk("\n"); + printk(KERN_CONT "\n"); } #endif if (!empty && s->state < usb_stream_sync1) @@ -640,6 +657,7 @@ static void i_capture_start(struct urb *urb) static void i_playback_start(struct urb *urb) { struct usb_stream_kernel *sk = urb->context; + if (balance_playback(sk, urb)) stream_start(sk, sk->i_urb, urb); } @@ -647,7 +665,7 @@ static void i_playback_start(struct urb *urb) int usb_stream_start(struct usb_stream_kernel *sk) { struct usb_stream *s = sk->s; - int frame = 0, iters = 0; + int frame = 0; int u, err; int try = 0; @@ -668,6 +686,7 @@ dotry: for (u = 0; u < 2; u++) { struct urb *inurb = sk->inurb[u]; struct urb *outurb = sk->outurb[u]; + playback_prep_freqn(sk, outurb); inurb->number_of_packets = outurb->number_of_packets; inurb->transfer_buffer_length = @@ -677,44 +696,46 @@ dotry: if (u == 0) { int now; struct usb_device *dev = inurb->dev; + frame = usb_get_current_frame_number(dev); do { now = usb_get_current_frame_number(dev); - ++iters; } while (now > -1 && now == frame); } err = usb_submit_urb(inurb, GFP_ATOMIC); if (err < 0) { - snd_printk(KERN_ERR"usb_submit_urb(sk->inurb[%i])" - " returned %i\n", u, err); + dev_err(&sk->dev->dev, + "%s: usb_submit_urb(sk->inurb[%i]) returned %i\n", + __func__, u, err); return err; } err = usb_submit_urb(outurb, GFP_ATOMIC); if (err < 0) { - snd_printk(KERN_ERR"usb_submit_urb(sk->outurb[%i])" - " returned %i\n", u, err); + dev_err(&sk->dev->dev, + "%s: usb_submit_urb(sk->outurb[%i]) returned %i\n", + __func__, u, err); return err; } if (inurb->start_frame != outurb->start_frame) { - snd_printd(KERN_DEBUG - "u[%i] start_frames differ in:%u out:%u\n", - u, inurb->start_frame, outurb->start_frame); + dev_dbg(&sk->dev->dev, + "%s: u[%i] start_frames differ in:%u out:%u\n", + __func__, u, inurb->start_frame, outurb->start_frame); goto check_retry; } } - snd_printdd(KERN_DEBUG "%i %i\n", frame, iters); try = 0; check_retry: if (try) { usb_stream_stop(sk); if (try < 5) { msleep(1500); - snd_printd(KERN_DEBUG "goto dotry;\n"); + dev_dbg(&sk->dev->dev, "goto dotry;\n"); goto dotry; } - snd_printk(KERN_WARNING"couldn't start" - " all urbs on the same start_frame.\n"); + dev_warn(&sk->dev->dev, + "%s: couldn't start all urbs on the same start_frame.\n", + __func__); return -EFAULT; } @@ -726,8 +747,8 @@ check_retry: /* wait, check */ { int wait_ms = 3000; + while (s->state != usb_stream_ready && wait_ms > 0) { - snd_printdd(KERN_DEBUG "%i\n", s->state); msleep(200); wait_ms -= 200; } @@ -742,6 +763,7 @@ check_retry: void usb_stream_stop(struct usb_stream_kernel *sk) { int u; + if (!sk->s) return; for (u = 0; u < USB_STREAM_NURBS; ++u) { |