October 2010 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] [PATCH] ASoC: Store DC offset correction for wm_hubs devices in class W mode
by Mark Brown 28 Oct '10

28 Oct '10

Providing the analogue configuration of the output path remains the same the DC offset corrected by the DC servo will remain identical so we can skip the callibration, reducing the startup time for the headphone output. Implement this for the wm_hubs devices as has been done for several other CODECs. Don't do this if we have any analogue paths enabled since offsets may be being introduced by the analogue paths which could vary outside the control of the driver. Signed-off-by: Mark Brown <broonie(a)opensource.wolfsonmicro.com> --- This change has not been tested yet but I'm sending it out for review now to accelerate the process. sound/soc/codecs/wm8993.c | 2 + sound/soc/codecs/wm8994.c | 3 ++ sound/soc/codecs/wm_hubs.c | 69 +++++++++++++++++++++++++++++-------------- sound/soc/codecs/wm_hubs.h | 3 ++ 4 files changed, 54 insertions(+), 23 deletions(-) diff --git a/sound/soc/codecs/wm8993.c b/sound/soc/codecs/wm8993.c index 589e3fa..67fe5cc 100644 --- a/sound/soc/codecs/wm8993.c +++ b/sound/soc/codecs/wm8993.c @@ -735,6 +735,7 @@ static int class_w_put(struct snd_kcontrol *kcontrol, 0); } wm8993->class_w_users++; + wm8993->hubs_data.class_w = true; } /* Implement the change */ @@ -751,6 +752,7 @@ static int class_w_put(struct snd_kcontrol *kcontrol, WM8993_CP_DYN_V); } wm8993->class_w_users--; + wm8993->hubs_data.class_w = false; } dev_dbg(codec->dev, "Indirect DAC use count now %d\n", diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index 0db59c3..3f70dee 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -2228,6 +2228,7 @@ static int clk_sys_event(struct snd_soc_dapm_widget *w, static void wm8994_update_class_w(struct snd_soc_codec *codec) { + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); int enable = 1; int source = 0; /* GCC flow analysis can't track enable */ int reg, reg_r; @@ -2278,11 +2279,13 @@ static void wm8994_update_class_w(struct snd_soc_codec *codec) WM8994_CP_DYN_PWR | WM8994_CP_DYN_SRC_SEL_MASK, source | WM8994_CP_DYN_PWR); + wm8994->hubs.class_w = true; } else { dev_dbg(codec->dev, "Class W disabled\n"); snd_soc_update_bits(codec, WM8994_CLASS_W_1, WM8994_CP_DYN_PWR, 0); + wm8994->hubs.class_w = false; } } diff --git a/sound/soc/codecs/wm_hubs.c b/sound/soc/codecs/wm_hubs.c index 2cb8153..31c2a57 100644 --- a/sound/soc/codecs/wm_hubs.c +++ b/sound/soc/codecs/wm_hubs.c @@ -94,6 +94,18 @@ static void calibrate_dc_servo(struct snd_soc_codec *codec) struct wm_hubs_data *hubs = snd_soc_codec_get_drvdata(codec); u16 reg, reg_l, reg_r, dcs_cfg; + /* If we're using a digital only path and have a previously + * callibrated DC servo offset stored then use that. */ + if (hubs->class_w && hubs->class_w_dcs) { + dev_dbg(codec->dev, "Using cached DC servo offset %x\n", + hubs->class_w_dcs); + snd_soc_write(codec, WM8993_DC_SERVO_3, hubs->class_w_dcs); + wait_for_dc_servo(codec, + WM8993_DCS_TRIG_DAC_WR_0 | + WM8993_DCS_TRIG_DAC_WR_1); + return; + } + /* Set for 32 series updates */ snd_soc_update_bits(codec, WM8993_DC_SERVO_1, WM8993_DCS_SERIES_NO_01_MASK, @@ -101,34 +113,34 @@ static void calibrate_dc_servo(struct snd_soc_codec *codec) wait_for_dc_servo(codec, WM8993_DCS_TRIG_SERIES_0 | WM8993_DCS_TRIG_SERIES_1); + /* Different chips in the family support different readback + * methods. + */ + switch (hubs->dcs_readback_mode) { + case 0: + reg_l = snd_soc_read(codec, WM8993_DC_SERVO_READBACK_1) + & WM8993_DCS_INTEG_CHAN_0_MASK;; + reg_r = snd_soc_read(codec, WM8993_DC_SERVO_READBACK_2) + & WM8993_DCS_INTEG_CHAN_1_MASK; + break; + case 1: + reg = snd_soc_read(codec, WM8993_DC_SERVO_3); + reg_l = (reg & WM8993_DCS_DAC_WR_VAL_1_MASK) + >> WM8993_DCS_DAC_WR_VAL_1_SHIFT; + reg_r = reg & WM8993_DCS_DAC_WR_VAL_0_MASK; + break; + default: + WARN(1, "Unknown DCS readback method"); + break; + } + + dev_dbg(codec->dev, "DCS input: %x %x\n", reg_l, reg_r); + /* Apply correction to DC servo result */ if (hubs->dcs_codes) { dev_dbg(codec->dev, "Applying %d code DC servo correction\n", hubs->dcs_codes); - /* Different chips in the family support different - * readback methods. - */ - switch (hubs->dcs_readback_mode) { - case 0: - reg_l = snd_soc_read(codec, WM8993_DC_SERVO_READBACK_1) - & WM8993_DCS_INTEG_CHAN_0_MASK;; - reg_r = snd_soc_read(codec, WM8993_DC_SERVO_READBACK_2) - & WM8993_DCS_INTEG_CHAN_1_MASK; - break; - case 1: - reg = snd_soc_read(codec, WM8993_DC_SERVO_3); - reg_l = (reg & WM8993_DCS_DAC_WR_VAL_1_MASK) - >> WM8993_DCS_DAC_WR_VAL_1_SHIFT; - reg_r = reg & WM8993_DCS_DAC_WR_VAL_0_MASK; - break; - default: - WARN(1, "Unknown DCS readback method"); - break; - } - - dev_dbg(codec->dev, "DCS input: %x %x\n", reg_l, reg_r); - /* HPOUT1L */ if (reg_l + hubs->dcs_codes > 0 && reg_l + hubs->dcs_codes < 0xff) @@ -148,7 +160,15 @@ static void calibrate_dc_servo(struct snd_soc_codec *codec) wait_for_dc_servo(codec, WM8993_DCS_TRIG_DAC_WR_0 | WM8993_DCS_TRIG_DAC_WR_1); + } else { + dcs_cfg = reg_l << WM8993_DCS_DAC_WR_VAL_1_SHIFT; + dcs_cfg |= reg_r; } + + /* Save the callibrated offset if we're in class W mode and + * therefore don't have any analogue signal mixed in. */ + if (hubs->class_w) + hubs->class_w_dcs = dcs_cfg; } /* @@ -163,6 +183,9 @@ static int wm8993_put_dc_servo(struct snd_kcontrol *kcontrol, ret = snd_soc_put_volsw_2r(kcontrol, ucontrol); + /* Updating the analogue gains invalidates the DC servo cache */ + hubs->class_w_dcs = 0; + /* If we're applying an offset correction then updating the * callibration would be likely to introduce further offsets. */ if (hubs->dcs_codes) diff --git a/sound/soc/codecs/wm_hubs.h b/sound/soc/codecs/wm_hubs.h index e51c166..f8a5e97 100644 --- a/sound/soc/codecs/wm_hubs.h +++ b/sound/soc/codecs/wm_hubs.h @@ -23,6 +23,9 @@ struct wm_hubs_data { int dcs_codes; int dcs_readback_mode; int hp_startup_mode; + + bool class_w; + u16 class_w_dcs; }; extern int wm_hubs_add_analogue_controls(struct snd_soc_codec *); -- 1.7.1

2 1

[alsa-devel] [PATCH] ALSA: hda: Add setup for mario
by Todd Broch 28 Oct '10

28 Oct '10

Add preset configuration for mario to override amp capabilities Signed-off-by: Todd Broch <tbroch(a)chromium.org> --- sound/pci/hda/patch_realtek.c | 52 +++++++++++++++++++++++++++++++++++++++++ 1 files changed, 52 insertions(+), 0 deletions(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 79bf4c8..7c77950 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -196,6 +196,7 @@ enum { ALC272_DELL, ALC272_DELL_ZM1, ALC272_SAMSUNG_NC10, + ALC272_MARIO, ALC662_AUTO, ALC662_MODEL_LAST, }; @@ -17643,6 +17644,18 @@ static struct hda_verb alc663_mode8_init_verbs[] = { {} }; +static struct hda_verb alc272_mario_init_verbs[] = { + {0x12, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN}, + {0x21, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP}, + {0x21, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE}, + {0x21, AC_VERB_SET_CONNECT_SEL, 0x01}, /* Headphone */ + {0x22, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0)}, + {0x22, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(9)}, + {0x18, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | ALC880_MIC_EVENT}, + {0x21, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN | ALC880_HP_EVENT}, + {} +}; + static struct snd_kcontrol_new alc662_auto_capture_mixer[] = { HDA_CODEC_VOLUME("Capture Volume", 0x09, 0x0, HDA_INPUT), HDA_CODEC_MUTE("Capture Switch", 0x09, 0x0, HDA_INPUT), @@ -18126,6 +18139,20 @@ static void alc663_g50v_unsol_event(struct hda_codec *codec, } } +static void alc272_mario_inithook(struct hda_codec *codec) +{ + alc663_21jd_two_speaker_automute(codec); + alc_mic_automute(codec); + if (snd_hda_override_amp_caps(codec, 0x2, HDA_OUTPUT, + (0x3b << AC_AMPCAP_OFFSET_SHIFT) | + (0x3b << AC_AMPCAP_NUM_STEPS_SHIFT) | + (0x03 << AC_AMPCAP_STEP_SIZE_SHIFT) | + (0 << AC_AMPCAP_MUTE_SHIFT))) { + printk(KERN_WARNING + "hda_codec: failed to override amp caps for NID 0x2\n"); + } +} + #define alc663_g50v_setup alc663_m51va_setup static void alc663_g50v_inithook(struct hda_codec *codec) @@ -18165,6 +18192,18 @@ static struct snd_kcontrol_new alc272_nc10_mixer[] = { { } /* end */ }; +static struct snd_kcontrol_new alc272_mario_mixer[] = { + HDA_CODEC_VOLUME("Speaker Playback Volume", 0x2, 0x0, HDA_OUTPUT), + HDA_CODEC_MUTE("Speaker Playback Switch", 0xc, 0x0, HDA_OUTPUT), + HDA_CODEC_VOLUME("Headphone Playback Volume", 0x3, 0x0, HDA_OUTPUT), + HDA_CODEC_MUTE("Headphone Playback Switch", 0xd, 0x0, HDA_OUTPUT), + + HDA_CODEC_VOLUME("Mic Playback Volume", 0x0b, 0x0, HDA_INPUT), + HDA_CODEC_MUTE("Mic Playback Switch", 0x0b, 0x0, HDA_INPUT), + HDA_CODEC_VOLUME("Mic Boost", 0x18, 0, HDA_INPUT), + { } /* end */ +}; + #ifdef CONFIG_SND_HDA_POWER_SAVE #define alc662_loopbacks alc880_loopbacks #endif @@ -18203,6 +18242,7 @@ static const char *alc662_models[ALC662_MODEL_LAST] = { [ALC272_DELL] = "dell", [ALC272_DELL_ZM1] = "dell-zm1", [ALC272_SAMSUNG_NC10] = "samsung-nc10", + [ALC272_MARIO] = "mario", [ALC662_AUTO] = "auto", }; @@ -18590,6 +18630,18 @@ static struct alc_config_preset alc662_presets[] = { .setup = alc663_mode4_setup, .init_hook = alc663_mode4_inithook, }, + [ALC272_MARIO] = { + .mixers = { alc272_mario_mixer }, + .init_verbs = { alc662_init_verbs, + alc272_mario_init_verbs}, + .num_dacs = ARRAY_SIZE(alc272_dac_nids), + .dac_nids = alc272_dac_nids, + .num_channel_mode = ARRAY_SIZE(alc662_3ST_2ch_modes), + .channel_mode = alc662_3ST_2ch_modes, + .unsol_event = alc663_mode4_unsol_event, + .setup = alc663_mode4_setup, + .init_hook = alc272_mario_inithook, + }, }; -- 1.7.1

2 1

[alsa-devel] report bug in kernel sound driver
by bestzwj 27 Oct '10

27 Oct '10

Dear all i want report a bug in davinci sound device driver (sound/soc/davinci-pcm.c) This bug cause by DMA copy Overflow. It will cause kernel oops with a lot of unusual info. And this problem seem still in latest stable kernel (version 2.6.35.7) Bug Symptom at the end of mail Here is my analyse of this bug: Device will call function : davinci_pcm_new This function will malloc a lagre Continuous Pages buffer (Typicly:128K) both Playback and Capture. Those two buffer will use as DMA copy ! When someone recoder sound date ! This driver will use DMA.Copy register date to Capture buffer that malloc at function davinci_pcm_new ! every DMA copy finish.callback function davinci_pcm_dma_irq will run. function davinci_pcm_enqueue_dma will work.This function will set DMA copy params again. And problem is in here ! It set DMA params : src = sound recoder 32-bit reg address dst = prtd->period * period_size src_bidx = 0 //(Every dma copy finish the src will not change) dst_bidx = data_type; //date_type = 2, because only high 16-bit is the sound date. acnt = 4 bcnt = 2048 cnt = 1 Use this param.DMA Internal work like: for(c=0;c<cnt;c++) { for(b=0;b<bcnt;b++) { memcopy(&dst,&src,4) src += src_bidx; //src_bidx = 0; dst += dst_bidx //dst_bidx = data_type =2 16bit sound date } } This copy will make all dst buffer has source high 16 bit date. but will cause 2 byptes Overflow every time the dma copy finish. it will change 4K bytes + 2 bytes. The 2 bytes is DMA copy Overflow. it will not error until you copy to the last period! because. your date total copy 128K +2bytes . and we only malloc 128K bytes other 2 bytes is kernel space memory. this two bytes will be use random by kernel. And those 2 bytes copy by dma. kernel don't know anything about this segment default. This easy way to fix the problem is change: if(unlikely(prtd->period >= runtime->periods)) prtd->period = 0; In function davinci_pcm_enqueue_dma to: if(unlikely(prtd->period >= (runtime->periods-1))) prtd->period = 0; Below is the Symptom: Symptom 1: Bad pte = 04040202, process = sleep, vm_flags = 1875, vaddr = 1b000 VM: killing process sleep Bad pte = 04040601, process = ???, vm_flags = 1875, vaddr = 17000 Bad pte = ffffffff, process = ???, vm_flags = 1875, vaddr = 43000 Bad pte = 00000001, process = ???, vm_flags = 1875, vaddr = 44000 ………….. Bad pte = 00000001, process = ???, vm_flags = 1875, vaddr = 88000 Symptom 2: Unhandled fault: page domain fault (0x8fb) at 0x00011008 Internal error: : 8fb [#1] Modules linked in: tlv320aic24 dm365_gpio dm365_pwm davinci_vpbe davinci_capture dm365_imp dm365mmap edmak irqk cmemk CPU: 0 PC is at __copy_to_user+0x54/0x3a8 LR is at 0x5eff968 pc : [<c0117568>] lr : [<05eff968>] Not tainted sp : c436befc ip : e4640f80 fp : c436bf4c r10: 00000000 r9 : c436a000 r8 : dcfd0362 r7 : 0ee2fab7 r6 : f7a60e69 r5 : fe9cf7d3 r4 : 026603c7 r3 : 0b7de3b1 r2 : 00000760 r1 : c5056020 r0 : 00011008 Flags: nzCv IRQs on FIQs on Mode SVC_32 Segment user Control: 5317F Table: 843C0000 DAC: 00000015 ,,,,,,,,,,,,,,,,,,,,,,,, page:c0363be0 flags:0x00000068 mapping:c4273d18 mapcount:0 count:0 Trying to fix it up, but a reboot is needed Symptom 3: 159.99.249.249 login: VM: killing process video_test Bad pte = 00000003, process = ???, vm_flags = 1875, vaddr = 9000 Bad pte = 00000005, process = ???, vm_flags = 1875, vaddr = b000 ,,,,,,,,,,,,,,,,,,,,, Bad pte = 00000001, process = ???, vm_flags = 100077, vaddr = 31000 Bad page state in process 'desched/0' page:c035e3e0 flags:0x0000006c mapping:c06ecec8 mapcount:0 count:0 Trying to fix it up, but a reboot is needed Symptom 4: 159.99.249.249 login: Bad pte = ffb7ffb6, process = inetd, vm_flags = 100177, vaddr = bea82000 Stopping interneBad pte = ffb7ffb6, process = inetd, vm_flags = 100177, vaddr = bea82000 t superserver: iBad pte = ffb7ffb6, process = inetd, vm_flags = 100177, vaddr = bea82000 netdBad pte = ffb7ffb6, process = inetd, vm_flags = 100177, vaddr = bea82000 Bad pte = ffb7ffb6, process = inetd, vm_flags = 100177, vaddr = bea82000 Bad pte = ffb7ffb6, process = inetd, vm_flags = 100177, vaddr = bea82000 ,,,,,,,,,,,,,,,,,,,,,,,,,,,, Bad pte = ffb7ffb6, process = inetd, vm_flags = 100177, vaddr = bea82000 Symptom 5: Unable to handle kernel NULL pointer dereference at virtual address 00000000 done. pgd = c0004000 [00000000] *pgd=00000000 Internal error: Oops: 817 [#1] Modules linked in: tlv320aic24 dm365_gpio dm365_pwm davinci_vpbe davinci_capture dm365_imp dm365mmap edmak irqk cmemk CPU: 0 PC is at __free_pages+0x18/0x58 LR is at __init_begin+0x3fff8000/0x30 pc : [<c007626c>] lr : [<00000000>] Not tainted sp : c03cdf50 ip : c03cdf60 fp : c03cdf5c r10: c02de000 r9 : 00000002 r8 : c02ca460 r7 : 00000000 r6 : 843cffd0 r5 : c43c0000 r4 : c03cc000 r3 : 00000000 r2 : c02ca444 r1 : 00000000 r0 : c03659e0 Flags: nZCv IRQs on FIQs on Mode SVC_32 Segment kernel Control: 5317F Table: 805BC000 DAC: 00000017 Process desched/0 (pid: 11, stack limit = 0xc03cc258) Stack: (0xc03cdf50 to 0xc03ce000) df40: c03cdf84 c03cdf60 c003ad7c c0076264 df60: c002b6c0 c002b6c0 00000000 c02c2990 00000001 c02c2998 c03cdf9c c03cdf88 df80: c0045d54 c003ac64 c03b3f18 c03cc000 c03cdfcc c03cdfa0 c0047b2c c0045d38 dfa0: 00000000 00000000 c03cc000 c0047a7c c03b3f18 00000000 00000000 00000000 dfc0: c03cdff4 c03cdfd0 c005eca8 c0047a8c ffffffff ffffffff 00000000 00000000 dfe0: 00000000 00000000 00000000 c03cdff8 c004ba28 c005ebd0 00000000 00000000 Backtrace: [<c0076254>] (__free_pages+0x0/0x58) from [<c003ad7c>] (free_pgd_slow+0x128/0x148) [<c003ac54>] (free_pgd_slow+0x0/0x148) from [<c0045d54>] (__mmdrop+0x2c/0x48) [<c0045d28>] (__mmdrop+0x0/0x48) from [<c0047b2c>] (desched_thread+0xb0/0x130) r4 = C03CC000 [<c0047a7c>] (desched_thread+0x0/0x130) from [<c005eca8>] (kthread+0xe8/0x128) [<c005ebc0>] (kthread+0x0/0x128) from [<c004ba28>] (do_exit+0x0/0x9cc) r7 = 00000000 r6 = 00000000 r5 = 00000000 r4 = 00000000 Code: e24cb004 e5903004 e1a0e001 e3530000 (05833000) prev->state: 2 != TASK_RUNNING?? desched/0/11[CPU#0]: BUG in __schedule at kernel/sched.c:3826 Symptom 6: VM: killing process sys_monitor Bad pte = e1a0c00d, process = ???, vm_flags = 100077, vaddr = 12000 Bad pte = e1a0c00d, process = ???, vm_flags = 100077, vaddr = 17000 Bad pte = e1a00001, process = ???, vm_flags = 100077, vaddr = 1a000 Bad pte = e3a00001, process = ???, vm_flags = 100077, vaddr = 22000 Bad pte = e1a0c00d, process = ???, vm_flags = 100077, vaddr = 24000 Bad pte = e1a04003, process = ???, vm_flags = 100077, vaddr = 29000 Bad pte = e0821001, process = ???, vm_flags = 100077, vaddr = 2a000 Bad pte = 979ff101, process = ???, vm_flags = 100077, vaddr = 2c000 Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = c0004000 [00000000] *pgd=00000000 Internal error: Oops: 817 [#1] Modules linked in: tlv320aic24 dm365_gpio dm365_pwm davinci_vpbe davinci_capture dm365_imp dm365mmap edmak irqk cmemk CPU: 0 PC is at __free_pages+0x18/0x58 LR is at __init_begin+0x3fff8000/0x30 pc : [<c007626c>] lr : [<00000000>] Not tainted sp : c434de98 ip : c434dea8 fp : c434dea4 r10: c02de000 r9 : c40b26e0 r8 : c02ca460 r7 : 00000000 r6 : 8434ffd1 r5 : c43c0000 r4 : c434c000 r3 : 00000000 r2 : c02ca444 r1 : 00000000 r0 : c03649e0 Flags: nZCv IRQs on FIQs on Mode SVC_32 Segment user Control: 5317F Table: 8437C000 DAC: 00000015 Process sys_monitor (pid: 581, stack limit = 0xc434c258) Stack: (0xc434de98 to 0xc434e000) de80: c434decc c434dea8 dea0: c003ad7c c0076264 c40b26e0 c40b26e0 c40b2714 c0495ac0 00000009 00008fa0 dec0: c434dee4 c434ded0 c0045d54 c003ac64 c0495ac0 c40b26e0 c434defc c434dee8 dee0: c0045e40 c0045d38 c0063250 c434c000 c434df1c c434df00 c004a28c c0045d80 df00: c434c000 c0495ac0 c0495ac0 00000001 c434df3c c434df20 c004bbd8 c004a180 df20: c434df84 c434df40 c00398ec c0049190 c434df84 c434df40 c00398f4 c004ba38 df40: 00000001 00000000 be90fb28 00000000 c434dfb0 00000000 c434de58 ffffffff df60: 00000000 be90fb28 00000000 be90fba8 00000003 be90fc84 c434df9c c434df88 df80: c00399fc c0039744 0000008e ffffffff c434dfac c434dfa0 c0039aac c00399f0 dfa0: 00000000 c434dfb0 c0032d88 c0039aa4 00000000 be90fb28 00000000 00000000 dfc0: be90fc90 00000000 be90fb28 00000000 be90fba8 00000003 be90fc84 00000004 dfe0: 00000000 be90fb08 00008fa0 00008fa0 00000010 ffffffff 00000000 00000000 Backtrace: [<c0076254>] (__free_pages+0x0/0x58) from [<c003ad7c>] (free_pgd_slow+0x128/0x148) [<c003ac54>] (free_pgd_slow+0x0/0x148) from [<c0045d54>] (__mmdrop+0x2c/0x48) [<c0045d28>] (__mmdrop+0x0/0x48) from [<c0045e40>] (mmput+0xd0/0xdc) r4 = C40B26E0 [<c0045d70>] (mmput+0x0/0xdc) from [<c004a28c>] (exit_mm+0x11c/0x120) r4 = C434C000 [<c004a170>] (exit_mm+0x0/0x120) from [<c004bbd8>] (do_exit+0x1b0/0x9cc) r7 = 00000001 r6 = C0495AC0 r5 = C0495AC0 r4 = C434C000 [<c004ba28>] (do_exit+0x0/0x9cc) from [<c00398f4>] (do_page_fault+0x1c0/0x228) [<c0039734>] (do_page_fault+0x0/0x228) from [<c00399fc>] (do_translation_fault+0x1c/0xb4) [<c00399e0>] (do_translation_fault+0x0/0xb4) from [<c0039aac>] (do_PrefetchAbort+0x18/0x1c) r4 = FFFFFFFF [<c0039a94>] (do_PrefetchAbort+0x0/0x1c) from [<c0032d88>] (ret_from_exception+0x0/0x10) Code: e24cb004 e5903004 e1a0e001 e3530000 (05833000) <1>Fixing recursive fault but reboot is needed! Thanks and Best Regards Honeywell Ivan Zhang(wenjie.zhang(a)honeywell.com) Firmware Engineer - Honeywell Security R&D - Asia Pacific No.430 Li Bing Road, Zhang Jiang Hi-Tech.Park, Pudong New Area,Shanghai, China(201203) Tel：(8621)-28942292

1 0

[alsa-devel] [PATCH 9/14] sound/oss/sb_ess.c: delete double assignment
by Julia Lawall 27 Oct '10

27 Oct '10

From: Julia Lawall <julia(a)diku.dk> Delete successive assignments to the same location. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression i; @@ *i = ...; i = ...; // </smpl> Signed-off-by: Julia Lawall <julia(a)diku.dk> --- sound/oss/sb_ess.c | 1 - 1 file changed, 1 deletion(-) diff --git a/sound/oss/sb_ess.c b/sound/oss/sb_ess.c index 51a3d38..9890cf2 100644 --- a/sound/oss/sb_ess.c +++ b/sound/oss/sb_ess.c @@ -1722,7 +1722,6 @@ printk (KERN_INFO "FKS: es_rec_set_recmask mask = %x\n", mask); right = (value & 0x0000ff00) >> 8; } else { /* Turn it off (3) */ left = 0; - left = 0; right = 0; } sb_common_mixer_set(devc, i + ES_REC_MIXER_RECDIFF, left, right);

2 1

[alsa-devel] snd-hda-intel (Cirrus Logic CS4206): MacBookPro6, 2 : No S/PDIF with Linux 2.6.36C
by Mohammad Bahathir Hashim 27 Oct '10

27 Oct '10

Hi, I want to use MacBook Pro (6,2) Mid-2010 15" with GNU/Linux all the time. IMHO, GNU/Linux provides me the best performance and flexibility for audio and video. Problem 1: No SPDIF when using Linux 2.6.36, but it working fine with 2.6.35 Problem 2 ? : xFront Speaker -> controls the woofer sound level Surround -> controls the left and right channel speakers' sound level. Both kernels 2.6.3[56] show the same problem/feature :). TIA. Here I attached alsa-info.sh's result for both kernel. ##Base64 encoded## H4sIAK5cxkwAA+w9a3PiuJb9tf0rzp2pvXTfCSDZ5hGqsnUJpNPsBJINSc+dTaW6jBGJt8FmbJPH bM1/3yPJL8DGEPLomYs6DdjS0Xnq6Mi2jo2xZxQte+QU1VK1pFVK/oP/7pkLwVLVdfGNZf6bEl2j 5B2lepXqeq2mae8IVWsaeQfkuQlJKzPPN1yAd67jrGQ8r/5PWmbTsWMMD3x3xv7uma419eVv03CH 3CwOlL/97cecgk2aJ/0mdLC9OzF8y7GhL/qCOyAlvVTZX6cXbBNAuYYNjt2AixmDU9MHtQpEa+j7 DV2Fy4sWqGg1Cm9/YtmzB2hbnu9agxlHjCeLS0VR+mPD/HZvuAyoVqIlCd3udpI0L4MqStewZyPD 9GcucxsgSnM6HTOEM0vKmesMZ0hfz5iwoLZrmIeO8w1rqnuqwPIzc202Xo1I4AoaumzMDE/2J8ek cjplLkLaN9B/9Hw2wbrj3mVZcK80XfPW8pmgMSDioV79WtU5eSbzPCekHEvH9tn4w/lHaDku+3DR /QhWBVpnl0F1Fyo6AfgnIq5ox59/V/rdMziyjcGYDcNOfmWe4Euo/AtzvWWOFKXtWnfMhTtZLUFR 7CVVU06sgWu4j3N1QdWlb40t32JeojKoEtpGS2VDEIgnKPkxUpImSsQvjMmZ2UPoM5d3hvYE/q3l gSckmA6X6OBIQrcNNkEylFB66CzGKAsocjHAh/LMc8sDyy4zb/gxaHQ+s22uqiL0nJgOPp481K3p 3NiWhz0MHgUjOYQgJUDgSqgtUiJcN+Bzu1mUZ4v8t1SsAqklqgfDB/Jg0qHwvGC5v4FeUYDCVe+L NbSMVQhkixUYgi4CFKQeoaBVIYazVgcSorAiWVpcM2w9xSQFQ0iDDkoEmrOh5cCQ3VkmDgBJM5r3 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4 4

[alsa-devel] [PATCH] ASoC: tlv320dac33: Error handling for broken chip
by Peter Ujfalusi 26 Oct '10

26 Oct '10

Correct/Implement handling of broken chip. Fail the soc_prope if the communication with the chip fails (can not read chip ID). Signed-off-by: Peter Ujfalusi <peter.ujfalusi(a)nokia.com> --- sound/soc/codecs/tlv320dac33.c | 26 +++++++++++++++++++------- 1 files changed, 19 insertions(+), 7 deletions(-) diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c index d251ff5..fed1458 100644 --- a/sound/soc/codecs/tlv320dac33.c +++ b/sound/soc/codecs/tlv320dac33.c @@ -200,7 +200,7 @@ static int dac33_read(struct snd_soc_codec *codec, unsigned int reg, u8 *value) { struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec); - int val; + int val, ret = 0; *value = reg & 0xff; @@ -210,6 +210,7 @@ static int dac33_read(struct snd_soc_codec *codec, unsigned int reg, if (val < 0) { dev_err(codec->dev, "Read failed (%d)\n", val); value[0] = dac33_read_reg_cache(codec, reg); + ret = val; } else { value[0] = val; dac33_write_reg_cache(codec, reg, val); @@ -218,7 +219,7 @@ static int dac33_read(struct snd_soc_codec *codec, unsigned int reg, value[0] = dac33_read_reg_cache(codec, reg); } - return 0; + return ret; } static int dac33_write(struct snd_soc_codec *codec, unsigned int reg, @@ -329,13 +330,18 @@ static void dac33_init_chip(struct snd_soc_codec *codec) dac33_read_reg_cache(codec, DAC33_LINER_TO_RLO_VOL)); } -static inline void dac33_read_id(struct snd_soc_codec *codec) +static inline int dac33_read_id(struct snd_soc_codec *codec) { + int i, ret = 0; u8 reg; - dac33_read(codec, DAC33_DEVICE_ID_MSB, &reg); - dac33_read(codec, DAC33_DEVICE_ID_LSB, &reg); - dac33_read(codec, DAC33_DEVICE_REV_ID, &reg); + for (i = 0; i < 3; i++) { + ret = dac33_read(codec, DAC33_DEVICE_ID_MSB + i, &reg); + if (ret < 0) + break; + } + + return ret; } static inline void dac33_soft_power(struct snd_soc_codec *codec, int power) @@ -1414,9 +1420,15 @@ static int dac33_soc_probe(struct snd_soc_codec *codec) dev_err(codec->dev, "Failed to power up codec: %d\n", ret); goto err_power; } - dac33_read_id(codec); + ret = dac33_read_id(codec); dac33_hard_power(codec, 0); + if (ret < 0) { + dev_err(codec->dev, "Failed to read chip ID: %d\n", ret); + ret = -ENODEV; + goto err_power; + } + /* Check if the IRQ number is valid and request it */ if (dac33->irq >= 0) { ret = request_irq(dac33->irq, dac33_interrupt_handler, -- 1.7.3.2

2 1

Re: [alsa-devel] Weird sound issue on 2.6.36
by Colin Guthrie 26 Oct '10

26 Oct '10

'Twas brillig, and Felipe Contreras at 26/10/10 12:15 did gyre and gimble: > On Tue, Oct 26, 2010 at 10:40 AM, Colin Guthrie <gmane(a)colin.guthr.ie> wrote: >> 'Twas brillig, and Felipe Contreras at 24/10/10 23:07 did gyre and gimble: >>> Hi, >>> >>> I suddenly noticed that sound is not working on 2.6.36; there's no >>> error, or warning, everything seems to be working, but there's no >>> sound coming out. >>> >>> I tried the rc's and AFAICR it was working fine, maybe I changed the >>> config, but everything seems to be ok. I went back to the rc's and >>> still couldn't get them to work. 2.6.35.7 works though. >>> >>> I'm attaching the config. >> >> Mentioning what sound chip you have would probably be a good start :p > > Ok, I thought the config would show that. alsa-info.sh output would but not (necessarily) a kernel config. > >> There is a regression with Intel HDA - Analog Devices (adNNNN) chips in >> .36, so first random guess would be that. >> >> See the "snd-hda-intel + ad198x is broken with 2.6.36" if this applies >> to you. > > Right, that fixes the issues. Thanks. Great. Lucky guess for me then! :) Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mageia Contributor [http://www.mageia.org/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/]

1 0

[alsa-devel] [PATCH v2] ASoC: TWL4030: Use usleep_range when appropriate
by Peter Ujfalusi 26 Oct '10

26 Oct '10

Change the busy loop delays with usleep_range or msleep calls. Signed-off-by: Peter Ujfalusi <peter.ujfalusi(a)nokia.com> --- Hello, Changes since v1: - offset cancellation in twl4030_init_chip has been optimized Peter sound/soc/codecs/twl4030.c | 31 +++++++++++++++++++++++-------- 1 files changed, 23 insertions(+), 8 deletions(-) diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index cbebec6..a6ceddb 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -233,6 +233,16 @@ static int twl4030_write(struct snd_soc_codec *codec, return 0; } +static inline void twl4030_wait_ms(int time) +{ + if (time < 60) { + time *= 1000; + usleep_range(time, time + 500); + } else { + msleep(time); + } +} + static void twl4030_codec_enable(struct snd_soc_codec *codec, int enable) { struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec); @@ -338,10 +348,14 @@ static void twl4030_init_chip(struct snd_soc_codec *codec) twl4030_write(codec, TWL4030_REG_ANAMICL, reg | TWL4030_CNCL_OFFSET_START); - /* wait for offset cancellation to complete */ + /* + * Wait for offset cancellation to complete. + * Since this takes a while, do not slam the i2c. + * Start polling the status after ~20ms. + */ + msleep(20); do { - /* this takes a little while, so don't slam i2c */ - udelay(2000); + usleep_range(1000, 2000); twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte, TWL4030_REG_ANAMICL); } while ((i++ < 100) && @@ -725,9 +739,12 @@ static void headset_ramp(struct snd_soc_codec *codec, int ramp) /* Base values for ramp delay calculation: 2^19 - 2^26 */ unsigned int ramp_base[] = {524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864}; + unsigned int delay; hs_gain = twl4030_read_reg_cache(codec, TWL4030_REG_HS_GAIN_SET); hs_pop = twl4030_read_reg_cache(codec, TWL4030_REG_HS_POPN_SET); + delay = (ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] / + twl4030->sysclk) + 1; /* Enable external mute control, this dramatically reduces * the pop-noise */ @@ -751,16 +768,14 @@ static void headset_ramp(struct snd_soc_codec *codec, int ramp) hs_pop |= TWL4030_RAMP_EN; twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop); /* Wait ramp delay time + 1, so the VMID can settle */ - mdelay((ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] / - twl4030->sysclk) + 1); + twl4030_wait_ms(delay); } else { /* Headset ramp-down _not_ according to * the TRM, but in a way that it is working */ hs_pop &= ~TWL4030_RAMP_EN; twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop); /* Wait ramp delay time + 1, so the VMID can settle */ - mdelay((ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] / - twl4030->sysclk) + 1); + twl4030_wait_ms(delay); /* Bypass the reg_cache to mute the headset */ twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain & (~0x0f), @@ -835,7 +850,7 @@ static int digimic_event(struct snd_soc_dapm_widget *w, struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(w->codec); if (twl4030->digimic_delay) - mdelay(twl4030->digimic_delay); + twl4030_wait_ms(twl4030->digimic_delay); return 0; } -- 1.7.3.1

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Re: [alsa-devel] Weird sound issue on 2.6.36
by Colin Guthrie 26 Oct '10

26 Oct '10

'Twas brillig, and Felipe Contreras at 24/10/10 23:07 did gyre and gimble: > Hi, > > I suddenly noticed that sound is not working on 2.6.36; there's no > error, or warning, everything seems to be working, but there's no > sound coming out. > > I tried the rc's and AFAICR it was working fine, maybe I changed the > config, but everything seems to be ok. I went back to the rc's and > still couldn't get them to work. 2.6.35.7 works though. > > I'm attaching the config. Mentioning what sound chip you have would probably be a good start :p There is a regression with Intel HDA - Analog Devices (adNNNN) chips in .36, so first random guess would be that. See the "snd-hda-intel + ad198x is broken with 2.6.36" if this applies to you. Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mageia Contributor [http://www.mageia.org/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/]

1 0

[alsa-devel] [PATCH 0/4] ASoC: Implement new caching API
by Dimitris Papastamos 25 Oct '10

25 Oct '10

This patch series introduces the new caching API. The idea behind this caching interface is that we can provide different means of organizing and accessing the register cache. This is useful for large and sparse register maps, where one can use some kind of compression algorithm to reduce the memory footprint. The caching API is designed in such way to eliminate the need for modifying any existing drivers. Dimitris Papastamos (4): ASoC: soc.h: Add new caching API prototypes and hooks ASoC: soc-cache: Add support for standard register caching ASoC: soc-core: Adapt soc-core to fit the new caching API ASoC: soc-cache: Add support for LZO based register caching include/sound/soc.h | 27 ++ sound/soc/soc-cache.c | 646 ++++++++++++++++++++++++++++++++++++++++++++++--- sound/soc/soc-core.c | 38 ++-- 3 files changed, 657 insertions(+), 54 deletions(-) -- 1.7.3.1

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