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 18:31 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 - 05-30-06 09:38 ---------------------------------------------------------------------- /* 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; } This may explain why au8820 score low mark in recent linux audio comparsion FC5 ---------------------------------------------------------------------- rlrevell - 05-30-06 18:31 ---------------------------------------------------------------------- What does this IRQ issue have to do with the buffer size constraint? Raymond, PLEASE stop using this bug tracker as your private IRC channel. One bug report per bug. 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 05-30-06 09:38 Raymond Note Edited: 0010017 05-30-06 18:31 rlrevell Note Added: 0010020 ====================================================================== _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
