A NOTE has been added to this issue. ====================================================================== <https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1724> ====================================================================== Reported By: Raymond Assigned To: mjander ====================================================================== Project: ALSA - driver Issue ID: 1724 Category: PCI - au88x0 Reproducibility: always Severity: block Priority: normal Status: assigned Distribution: Kernel Version: ====================================================================== Date Submitted: 01-07-2006 05:10 CET Last Modified: 05-30-2006 09:36 CEST ====================================================================== Summary: au88x0 PCM configuration problem - buffer_size constraint Description: /cvs/alsa-lib/test/pcm_min ALSA lib pcm.c:7127:(snd_pcm_set_params) Unable to set buffer time (latency) 500000 for PLAYBACK: Invalid argument Playback open error: Invalid argument sound card is au8830, the au88x0 driver only accept period size in power of 2. ====================================================================== Relationships ID Summary ---------------------------------------------------------------------- related to 0001766 jackd : ALSA: cannot set period size to... ====================================================================== ---------------------------------------------------------------------- Raymond - 05-22-06 15:48 ---------------------------------------------------------------------- http://hg-mirror.alsa-project.org/alsa-lib?cmd=changeset;node=481c12cfbffd;style=gitweb Whenever snd_pcm_hw_params_set_buffer_time_near() or snd_pcm_hw_params_set_period_time_near() fail, the error is irrecoverable However this behaviour seem undocumented in alsa-lib snd_pcm_hw_params_test_buffer_time() should be used instead of snd_pcm_hw_params_set_buffer_time_near() http://bugzilla.gnome.org/show_bug.cgi?id=342085 ---------------------------------------------------------------------- Raymond - 05-30-06 09:36 ---------------------------------------------------------------------- /* IRQ flags */ #define IRQ_ERR_MASK 0x00ff #define IRQ_FATAL 0x0001 #define IRQ_PARITY 0x0002 #define IRQ_REG 0x0004 #define IRQ_FIFO 0x0008 #define IRQ_DMA 0x0010 #define IRQ_PCMOUT 0x0020 /* PCM OUT page crossing */ #define IRQ_TIMER 0x1000 #define IRQ_MIDI 0x2000 #define IRQ_MODEM 0x4000 snd_pcm_period_elapsed() is called only when IRQ_PCMOUT is generated, however IRQ_ERR_MASK should not contain IRQ_PCMOUT bit. It just wasting CPU to perform those unnecssary check IRQ_ERR_MASK should be 0x1f instead of 0xff if (unlikely(source & IRQ_ERR_MASK)) { if (source & IRQ_FATAL) { printk(KERN_ERR "vortex: IRQ fatal error\n"); } if (source & IRQ_PARITY) { printk(KERN_ERR "vortex: IRQ parity error\n"); } if (source & IRQ_REG) { printk(KERN_ERR "vortex: IRQ reg error\n"); } if (source & IRQ_FIFO) { printk(KERN_ERR "vortex: IRQ fifo error\n"); } if (source & IRQ_DMA) { printk(KERN_ERR "vortex: IRQ dma error\n"); } handled = 1; } Issue History Date Modified Username Field Change ====================================================================== 01-07-06 05:10 Raymond New Issue 01-09-06 15:19 Raymond Note Added: 0007537 01-19-06 15:04 Raymond Note Deleted: 0007537 01-19-06 15:36 Raymond Note Added: 0007721 01-28-06 07:58 Raymond Note Added: 0007828 01-28-06 07:58 Raymond Note Deleted: 0007721 01-30-06 18:46 Raymond Note Added: 0007840 01-31-06 03:15 Raymond Note Added: 0007844 01-31-06 06:41 Raymond Note Edited: 0007840 01-31-06 07:03 Raymond Note Edited: 0007840 01-31-06 07:08 Raymond Note Edited: 0007840 01-31-06 07:11 Raymond Note Edited: 0007840 01-31-06 08:31 Raymond Note Edited: 0007840 01-31-06 09:48 Raymond Note Edited: 0007844 01-31-06 10:19 perex Note Added: 0007845 01-31-06 10:26 perex Note Added: 0007847 01-31-06 10:26 perex Note Edited: 0007847 01-31-06 10:48 perex Project ALSA - lib => ALSA - driver 01-31-06 10:49 perex Category 0_general => PCI - au88x0 01-31-06 10:49 perex Summary simple PCM helper function => au88x0 PCM configuration problem - buffer_size constraint 01-31-06 11:06 Raymond Note Added: 0007848 01-31-06 13:48 perex Status new => assigned 01-31-06 13:48 perex Assigned To => mjander 01-31-06 13:49 perex Relationship added related to 0001766 01-31-06 15:59 Raymond Note Added: 0007852 02-01-06 07:35 perex Note Added: 0007857 02-01-06 10:32 Raymond Note Added: 0007858 02-01-06 10:37 Raymond Note Edited: 0007848 02-01-06 17:15 Raymond Note Edited: 0007844 02-01-06 17:20 Raymond Note Added: 0007860 02-02-06 10:23 Raymond Note Added: 0007874 02-02-06 11:10 Raymond Note Edited: 0007874 02-02-06 15:48 Raymond Note Edited: 0007874 02-03-06 14:26 Raymond Note Added: 0007897 02-04-06 02:46 Raymond Note Edited: 0007874 02-04-06 02:52 Raymond Note Edited: 0007858 02-04-06 02:56 Raymond Note Edited: 0007858 02-05-06 16:39 Raymond Note Added: 0007939 02-05-06 16:48 Raymond Note Added: 0007940 02-06-06 04:40 Raymond Note Deleted: 0007939 02-06-06 06:15 Raymond Note Edited: 0007940 02-07-06 07:35 Raymond Note Added: 0007954 02-13-06 03:11 Raymond Note Added: 0008036 02-13-06 08:52 mjander Note Added: 0008039 02-13-06 16:57 Raymond Note Added: 0008055 02-13-06 17:02 Raymond Note Edited: 0008055 02-13-06 17:02 Raymond Note Edited: 0008055 02-16-06 04:01 Raymond Note Added: 0008083 02-19-06 06:31 Raymond Note Added: 0008130 02-19-06 06:39 Raymond Note Edited: 0008130 03-07-06 11:08 Raymond Note Added: 0008362 03-07-06 14:18 Raymond Note Edited: 0007844 03-24-06 10:51 Raymond File Added: snd_pcm_set_params.patch 03-30-06 18:35 Raymond Note Added: 0009036 05-22-06 15:11 Raymond Note Deleted: 0008055 05-22-06 15:12 Raymond Note Deleted: 0008362 05-22-06 15:13 Raymond Note Deleted: 0008130 05-22-06 15:14 Raymond Note Deleted: 0008083 05-22-06 15:15 Raymond Note Deleted: 0009036 05-22-06 15:16 Raymond Note Deleted: 0007860 05-22-06 15:17 Raymond Note Deleted: 0007848 05-22-06 15:20 Raymond Note Deleted: 0007940 05-22-06 15:24 Raymond Note Deleted: 0007954 05-22-06 15:48 Raymond Note Added: 0009912 05-30-06 09:36 Raymond Note Added: 0010017 ====================================================================== _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
