/* * intelmid.c - Intel Sound card driver for MID * * Copyright (C) 2008-10 Intel Corp * Authors: Harsha Priya * Vinod Koul * Dharageswari R * KP Jeeja * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * 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; version 2 of the License. * * 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., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * ALSA driver for Intel MID sound card chipset */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "intel_sst.h" #include "intel_sst_ioctl.h" #include "intel_sst_fw_ipc.h" #include "intel_sst_common.h" #include "intelmid_snd_control.h" #include "intelmid_adc_control.h" #include "intelmid.h" MODULE_AUTHOR("Vinod Koul "); MODULE_AUTHOR("Harsha Priya "); MODULE_AUTHOR("Dharageswari R "); MODULE_AUTHOR("KP Jeeja "); MODULE_DESCRIPTION("Intel MAD Sound card driver"); MODULE_LICENSE("GPL v2"); MODULE_SUPPORTED_DEVICE("{Intel,Intel_MAD}"); static int card_index = SNDRV_DEFAULT_IDX1;/* Index 0-MAX */ static char *card_id = SNDRV_DEFAULT_STR1; /* ID for this card */ module_param(card_index, int, 0444); MODULE_PARM_DESC(card_index, "Index value for INTELMAD soundcard."); module_param(card_id, charp, 0444); MODULE_PARM_DESC(card_id, "ID string for INTELMAD soundcard."); int sst_card_vendor_id; int intelmid_audio_interrupt_enable;/*checkpatch fix*/ struct snd_intelmad *intelmad_drv; #define INFO(_cpu_id, _irq_cache, _size) \ ((kernel_ulong_t)&(struct snd_intelmad_probe_info) { \ .cpu_id = (_cpu_id), \ .irq_cache = (_irq_cache), \ .size = (_size), \ }) /* Data path functionalities */ static struct snd_pcm_hardware snd_intelmad_stream = { .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_DOUBLE | SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP| SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_SYNC_START), .formats = (SNDRV_PCM_FMTBIT_S16 | SNDRV_PCM_FMTBIT_U16 | SNDRV_PCM_FMTBIT_S24 | SNDRV_PCM_FMTBIT_U24 | SNDRV_PCM_FMTBIT_S32 | SNDRV_PCM_FMTBIT_U32), .rates = (SNDRV_PCM_RATE_8000| SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000), .rate_min = MIN_RATE, .rate_max = MAX_RATE, .channels_min = MIN_CHANNEL, .channels_max = MAX_CHANNEL_AMIC, .buffer_bytes_max = MAX_BUFFER, .period_bytes_min = MIN_PERIOD_BYTES, .period_bytes_max = MAX_PERIOD_BYTES, .periods_min = MIN_PERIODS, .periods_max = MAX_PERIODS, .fifo_size = FIFO_SIZE, }; /** * snd_intelmad_pcm_trigger - stream activities are handled here * * @substream:substream for which the stream function is called * @cmd:the stream commamd that requested from upper layer * * This function is called whenever an a stream activity is invoked */ static int snd_intelmad_pcm_trigger(struct snd_pcm_substream *substream, int cmd) { int ret_val = 0, str_id; struct snd_intelmad *intelmaddata; struct mad_stream_pvt *stream; struct intel_sst_pcm_control *sst_ops; WARN_ON(!substream); intelmaddata = snd_pcm_substream_chip(substream); stream = substream->runtime->private_data; WARN_ON(!intelmaddata->sstdrv_ops); WARN_ON(!intelmaddata->sstdrv_ops->scard_ops); sst_ops = intelmaddata->sstdrv_ops->pcm_control; str_id = stream->stream_info.str_id; switch (cmd) { case SNDRV_PCM_TRIGGER_START: pr_debug("Trigger Start\n"); ret_val = sst_ops->device_control(SST_SND_START, &str_id); if (ret_val) return ret_val; stream->stream_status = RUNNING; stream->substream = substream; break; case SNDRV_PCM_TRIGGER_STOP: pr_debug("in stop\n"); ret_val = sst_ops->device_control(SST_SND_DROP, &str_id); if (ret_val) return ret_val; stream->stream_status = DROPPED; break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: pr_debug("in pause\n"); ret_val = sst_ops->device_control(SST_SND_PAUSE, &str_id); if (ret_val) return ret_val; stream->stream_status = PAUSED; break; case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: pr_debug("in pause release\n"); ret_val = sst_ops->device_control(SST_SND_RESUME, &str_id); if (ret_val) return ret_val; stream->stream_status = RUNNING; break; default: return -EINVAL; } return ret_val; } /** * snd_intelmad_pcm_prepare- internal preparation before starting a stream * * @substream: substream for which the function is called * * This function is called when a stream is started for internal preparation. */ static int snd_intelmad_pcm_prepare(struct snd_pcm_substream *substream) { struct mad_stream_pvt *stream; int ret_val = 0; struct snd_intelmad *intelmaddata; pr_debug("pcm_prepare called\n"); WARN_ON(!substream); stream = substream->runtime->private_data; intelmaddata = snd_pcm_substream_chip(substream); pr_debug("pb cnt = %d cap cnt = %d\n",\ intelmaddata->playback_cnt, intelmaddata->capture_cnt); if (stream->stream_info.str_id) { pr_debug("Prepare called for already set stream\n"); ret_val = intelmaddata->sstdrv_ops->pcm_control->device_control( SST_SND_DROP, &stream->stream_info.str_id); return ret_val; } ret_val = snd_intelmad_alloc_stream(substream); if (ret_val < 0) return ret_val; stream->dbg_cum_bytes = 0; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) intelmaddata->playback_cnt++; else intelmaddata->capture_cnt++; /* return back the stream id */ snprintf(substream->pcm->id, sizeof(substream->pcm->id), "%d", stream->stream_info.str_id); pr_debug("stream id to user = %s\n", substream->pcm->id); ret_val = snd_intelmad_init_stream(substream); if (ret_val) return ret_val; substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER; return ret_val; } static int snd_intelmad_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { int ret_val; pr_debug("snd_intelmad_hw_params called\n"); ret_val = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); memset(substream->runtime->dma_area, 0, params_buffer_bytes(hw_params)); return ret_val; } static int snd_intelmad_hw_free(struct snd_pcm_substream *substream) { pr_debug("snd_intelmad_hw_free called\n"); return snd_pcm_lib_free_pages(substream); } /** * snd_intelmad_pcm_pointer- to send the current buffer pointer processed by hw * * @substream: substream for which the function is called * * This function is called by ALSA framework to get the current hw buffer ptr * when a period is elapsed */ static snd_pcm_uframes_t snd_intelmad_pcm_pointer (struct snd_pcm_substream *substream) { /* struct snd_pcm_runtime *runtime = substream->runtime; */ struct mad_stream_pvt *stream; struct snd_intelmad *intelmaddata; int ret_val; WARN_ON(!substream); intelmaddata = snd_pcm_substream_chip(substream); stream = substream->runtime->private_data; if (stream->stream_status == INIT) return 0; ret_val = intelmaddata->sstdrv_ops->pcm_control->device_control( SST_SND_BUFFER_POINTER, &stream->stream_info); if (ret_val) { pr_err("error code = 0x%x\n", ret_val); return ret_val; } pr_debug("samples reported out 0x%llx\n", stream->stream_info.buffer_ptr); pr_debug("Frame bits:: %d period_count :: %d\n", (int)substream->runtime->frame_bits, (int)substream->runtime->period_size); return stream->stream_info.buffer_ptr; } /** * snd_intelmad_close- to free parameteres when stream is stopped * * @substream: substream for which the function is called * * This function is called by ALSA framework when stream is stopped */ static int snd_intelmad_close(struct snd_pcm_substream *substream) { struct snd_intelmad *intelmaddata; struct mad_stream_pvt *stream; int ret_val = 0, str_id; WARN_ON(!substream); stream = substream->runtime->private_data; str_id = stream->stream_info.str_id; pr_debug("sst: snd_intelmad_close called for %d\n", str_id); intelmaddata = snd_pcm_substream_chip(substream); pr_debug("str id = %d\n", stream->stream_info.str_id); if (stream->stream_info.str_id) { /* SST API to actually stop/free the stream */ ret_val = intelmaddata->sstdrv_ops->pcm_control->close(str_id); if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) intelmaddata->playback_cnt--; else intelmaddata->capture_cnt--; } pr_debug("snd_intelmad_close : pb cnt = %d cap cnt = %d\n", intelmaddata->playback_cnt, intelmaddata->capture_cnt); kfree(substream->runtime->private_data); return ret_val; } /** * snd_intelmad_open- to set runtime parameters during stream start * * @substream: substream for which the function is called * @type: audio device type * * This function is called by ALSA framework when stream is started */ static int snd_intelmad_open(struct snd_pcm_substream *substream, enum snd_sst_audio_device_type type) { struct snd_intelmad *intelmaddata; struct snd_pcm_runtime *runtime; struct mad_stream_pvt *stream; WARN_ON(!substream); pr_debug("snd_intelmad_open called\n"); intelmaddata = snd_pcm_substream_chip(substream); runtime = substream->runtime; /* set the runtime hw parameter with local snd_pcm_hardware struct */ runtime->hw = snd_intelmad_stream; if (intelmaddata->cpu_id == CPU_CHIP_LINCROFT) { /* * MRST firmware currently denies stereo recording requests. */ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { runtime->hw.formats = (SNDRV_PCM_FMTBIT_S16 | SNDRV_PCM_FMTBIT_U16); runtime->hw.channels_max = 1; } } if (intelmaddata->cpu_id == CPU_CHIP_PENWELL) { runtime->hw = snd_intelmad_stream; runtime->hw.rates = SNDRV_PCM_RATE_48000; runtime->hw.rate_min = MAX_RATE; runtime->hw.formats = (SNDRV_PCM_FMTBIT_S24 | SNDRV_PCM_FMTBIT_U24); if (intelmaddata->sstdrv_ops->scard_ops->input_dev_id == AMIC) runtime->hw.channels_max = MAX_CHANNEL_AMIC; else runtime->hw.channels_max = MAX_CHANNEL_DMIC; } /* setup the internal datastruture stream pointers based on it being playback or capture stream */ stream = kzalloc(sizeof(*stream), GFP_KERNEL); if (!stream) return -ENOMEM; stream->stream_info.str_id = 0; stream->device = type; stream->stream_status = INIT; runtime->private_data = stream; return snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); } static int snd_intelmad_headset_open(struct snd_pcm_substream *substream) { return snd_intelmad_open(substream, SND_SST_DEVICE_HEADSET); } static int snd_intelmad_ihf_open(struct snd_pcm_substream *substream) { return snd_intelmad_open(substream, SND_SST_DEVICE_IHF); } static int snd_intelmad_vibra_open(struct snd_pcm_substream *substream) { return snd_intelmad_open(substream, SND_SST_DEVICE_VIBRA); } static int snd_intelmad_haptic_open(struct snd_pcm_substream *substream) { return snd_intelmad_open(substream, SND_SST_DEVICE_HAPTIC); } static struct snd_pcm_ops snd_intelmad_headset_ops = { .open = snd_intelmad_headset_open, .close = snd_intelmad_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_intelmad_hw_params, .hw_free = snd_intelmad_hw_free, .prepare = snd_intelmad_pcm_prepare, .trigger = snd_intelmad_pcm_trigger, .pointer = snd_intelmad_pcm_pointer, }; static struct snd_pcm_ops snd_intelmad_ihf_ops = { .open = snd_intelmad_ihf_open, .close = snd_intelmad_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_intelmad_hw_params, .hw_free = snd_intelmad_hw_free, .prepare = snd_intelmad_pcm_prepare, .trigger = snd_intelmad_pcm_trigger, .pointer = snd_intelmad_pcm_pointer, }; static struct snd_pcm_ops snd_intelmad_vibra_ops = { .open = snd_intelmad_vibra_open, .close = snd_intelmad_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_intelmad_hw_params, .hw_free = snd_intelmad_hw_free, .prepare = snd_intelmad_pcm_prepare, .trigger = snd_intelmad_pcm_trigger, .pointer = snd_intelmad_pcm_pointer, }; static struct snd_pcm_ops snd_intelmad_haptic_ops = { .open = snd_intelmad_haptic_open, .close = snd_intelmad_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_intelmad_hw_params, .hw_free = snd_intelmad_hw_free, .prepare = snd_intelmad_pcm_prepare, .trigger = snd_intelmad_pcm_trigger, .pointer = snd_intelmad_pcm_pointer, }; static struct snd_pcm_ops snd_intelmad_capture_ops = { .open = snd_intelmad_headset_open, .close = snd_intelmad_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_intelmad_hw_params, .hw_free = snd_intelmad_hw_free, .prepare = snd_intelmad_pcm_prepare, .trigger = snd_intelmad_pcm_trigger, .pointer = snd_intelmad_pcm_pointer, }; int intelmad_get_mic_bias(void) { struct snd_pmic_ops *pmic_ops; if (!intelmad_drv || !intelmad_drv->sstdrv_ops) return -ENODEV; pmic_ops = intelmad_drv->sstdrv_ops->scard_ops; if (pmic_ops && pmic_ops->pmic_get_mic_bias) return pmic_ops->pmic_get_mic_bias(intelmad_drv); else return -ENODEV; } EXPORT_SYMBOL_GPL(intelmad_get_mic_bias); int intelmad_set_headset_state(int state) { struct snd_pmic_ops *pmic_ops; if (!intelmad_drv || !intelmad_drv->sstdrv_ops) return -ENODEV; pmic_ops = intelmad_drv->sstdrv_ops->scard_ops; if (pmic_ops && pmic_ops->pmic_set_headset_state) return pmic_ops->pmic_set_headset_state(state); else return -ENODEV; } EXPORT_SYMBOL_GPL(intelmad_set_headset_state); void sst_process_mad_jack_detection(struct work_struct *work) { u8 interrupt_status; struct mad_jack_msg_wq *mad_jack_detect = container_of(work, struct mad_jack_msg_wq, wq); struct snd_intelmad *intelmaddata = mad_jack_detect->intelmaddata; if (!intelmaddata) return; interrupt_status = mad_jack_detect->intsts; if (intelmaddata->sstdrv_ops && intelmaddata->sstdrv_ops->scard_ops && intelmaddata->sstdrv_ops->scard_ops->pmic_irq_cb) { intelmaddata->sstdrv_ops->scard_ops->pmic_irq_cb( (void *)intelmaddata, interrupt_status); intelmaddata->sstdrv_ops->scard_ops->pmic_jack_enable(); } kfree(mad_jack_detect); } /** * snd_intelmad_intr_handler- interrupt handler * * @irq : irq number of the interrupt received * @dev: device context * * This function is called when an interrupt is raised at the sound card */ static irqreturn_t snd_intelmad_intr_handler(int irq, void *dev) { struct snd_intelmad *intelmaddata = (struct snd_intelmad *)dev; u8 interrupt_status; struct mad_jack_msg_wq *mad_jack_msg; memcpy_fromio(&interrupt_status, ((void *)(intelmaddata->int_base)), sizeof(u8)); mad_jack_msg = kzalloc(sizeof(*mad_jack_msg), GFP_ATOMIC); mad_jack_msg->intsts = interrupt_status; mad_jack_msg->intelmaddata = intelmaddata; INIT_WORK(&mad_jack_msg->wq, sst_process_mad_jack_detection); queue_work(intelmaddata->mad_jack_wq, &mad_jack_msg->wq); return IRQ_HANDLED; } void sst_mad_send_jack_report(struct snd_jack *jack, int buttonpressevent , int status) { if (!jack) { pr_debug("MAD error jack empty\n"); } else { snd_jack_report(jack, status); /* button pressed and released */ if (buttonpressevent) snd_jack_report(jack, 0); pr_debug("MAD sending jack report Done !!!\n"); } } static int __devinit snd_intelmad_register_irq( struct snd_intelmad *intelmaddata, unsigned int regbase, unsigned int regsize) { int ret_val; char *drv_name; pr_debug("irq reg regbase 0x%x, regsize 0x%x\n", regbase, regsize); intelmaddata->int_base = ioremap_nocache(regbase, regsize); if (!intelmaddata->int_base) pr_err("Mapping of cache failed\n"); pr_debug("irq = 0x%x\n", intelmaddata->irq); if (intelmaddata->cpu_id == CPU_CHIP_PENWELL) drv_name = DRIVER_NAME_MFLD; else drv_name = DRIVER_NAME_MRST; ret_val = request_irq(intelmaddata->irq, snd_intelmad_intr_handler, IRQF_SHARED, drv_name, intelmaddata); if (ret_val) pr_err("cannot register IRQ\n"); return ret_val; } static int __devinit snd_intelmad_sst_register( struct snd_intelmad *intelmaddata) { int ret_val = 0; struct snd_pmic_ops *intelmad_vendor_ops[MAX_VENDORS] = { &snd_pmic_ops_fs, &snd_pmic_ops_mx, &snd_pmic_ops_nc, &snd_msic_ops }; struct sc_reg_access vendor_addr = {0x00, 0x00, 0x00}; if (intelmaddata->cpu_id == CPU_CHIP_LINCROFT) { ret_val = sst_sc_reg_access(&vendor_addr, PMIC_READ, 1); if (ret_val) return ret_val; sst_card_vendor_id = (vendor_addr.value & (MASK2|MASK1|MASK0)); pr_debug("original n extrated vendor id = 0x%x %d\n", vendor_addr.value, sst_card_vendor_id); if (sst_card_vendor_id < 0 || sst_card_vendor_id > 2) { pr_err("vendor card not supported!!\n"); return -EIO; } } else sst_card_vendor_id = 0x3; intelmaddata->sstdrv_ops->module_name = SST_CARD_NAMES; intelmaddata->sstdrv_ops->vendor_id = sst_card_vendor_id; BUG_ON(!intelmad_vendor_ops[sst_card_vendor_id]); intelmaddata->sstdrv_ops->scard_ops = intelmad_vendor_ops[sst_card_vendor_id]; if (intelmaddata->cpu_id == CPU_CHIP_PENWELL) { intelmaddata->sstdrv_ops->scard_ops->pb_on = 0; intelmaddata->sstdrv_ops->scard_ops->cap_on = 0; intelmaddata->sstdrv_ops->scard_ops->input_dev_id = DMIC; intelmaddata->sstdrv_ops->scard_ops->output_dev_id = STEREO_HEADPHONE; intelmaddata->sstdrv_ops->scard_ops->lineout_dev_id = NONE; } /* registering with SST driver to get access to SST APIs to use */ ret_val = register_sst_card(intelmaddata->sstdrv_ops); if (ret_val) { pr_err("sst card registration failed\n"); return ret_val; } sst_card_vendor_id = intelmaddata->sstdrv_ops->vendor_id; intelmaddata->pmic_status = PMIC_UNINIT; return ret_val; } static void snd_intelmad_page_free(struct snd_pcm *pcm) { snd_pcm_lib_preallocate_free_for_all(pcm); } /* Driver Init/exit functionalities */ /** * snd_intelmad_pcm_new - to setup pcm for the card * * @card: pointer to the sound card structure * @intelmaddata: pointer to internal context * @pb: playback count for this card * @cap: capture count for this card * @index: device index * * This function is called from probe function to set up pcm params * and functions */ static int __devinit snd_intelmad_pcm_new(struct snd_card *card, struct snd_intelmad *intelmaddata, unsigned int pb, unsigned int cap, unsigned int index) { int ret_val = 0; struct snd_pcm *pcm; char name[32] = INTEL_MAD; struct snd_pcm_ops *pb_ops = NULL, *cap_ops = NULL; pr_debug("called for pb %d, cp %d, idx %d\n", pb, cap, index); ret_val = snd_pcm_new(card, name, index, pb, cap, &pcm); if (ret_val) return ret_val; /* setup the ops for playback and capture streams */ switch (index) { case 0: pb_ops = &snd_intelmad_headset_ops; cap_ops = &snd_intelmad_capture_ops; break; case 1: pb_ops = &snd_intelmad_ihf_ops; cap_ops = &snd_intelmad_capture_ops; break; case 2: pb_ops = &snd_intelmad_vibra_ops; cap_ops = &snd_intelmad_capture_ops; break; case 3: pb_ops = &snd_intelmad_haptic_ops; cap_ops = &snd_intelmad_capture_ops; break; } if (pb) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, pb_ops); if (cap) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, cap_ops); /* setup private data which can be retrieved when required */ pcm->private_data = intelmaddata; pcm->private_free = snd_intelmad_page_free; pcm->info_flags = 0; strncpy(pcm->name, card->shortname, strlen(card->shortname)); /* allocate dma pages for ALSA stream operations */ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, snd_dma_continuous_data(GFP_KERNEL), MIN_BUFFER, MAX_BUFFER); return ret_val; } static int __devinit snd_intelmad_pcm(struct snd_card *card, struct snd_intelmad *intelmaddata) { int ret_val = 0; WARN_ON(!card); WARN_ON(!intelmaddata); pr_debug("snd_intelmad_pcm called\n"); ret_val = snd_intelmad_pcm_new(card, intelmaddata, 1, 1, 0); if (intelmaddata->cpu_id == CPU_CHIP_LINCROFT) return ret_val; ret_val = snd_intelmad_pcm_new(card, intelmaddata, 1, 0, 1); if (ret_val) return ret_val; ret_val = snd_intelmad_pcm_new(card, intelmaddata, 1, 0, 2); if (ret_val) return ret_val; return snd_intelmad_pcm_new(card, intelmaddata, 1, 0, 3); } /** * snd_intelmad_jack- to setup jack settings of the card * * @intelmaddata: pointer to internal context * * This function is called send jack events */ static int snd_intelmad_jack(struct snd_intelmad *intelmaddata) { struct snd_jack *jack; int retval; pr_debug("snd_intelmad_jack called\n"); jack = &intelmaddata->jack[0].jack; snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PHONE); retval = snd_jack_new(intelmaddata->card, "Intel(R) MID Audio Jack", SND_JACK_HEADPHONE | SND_JACK_HEADSET | SW_JACK_PHYSICAL_INSERT | SND_JACK_BTN_0 | SND_JACK_BTN_1, &jack); pr_debug("snd_intelmad_jack called\n"); if (retval < 0) return retval; snd_jack_report(jack, 0); jack->private_data = jack; intelmaddata->jack[0].jack = *jack; return retval; } /** * snd_intelmad_mixer- to setup mixer settings of the card * * @intelmaddata: pointer to internal context * * This function is called from probe function to set up mixer controls */ static int __devinit snd_intelmad_mixer(struct snd_intelmad *intelmaddata) { struct snd_card *card; unsigned int idx; int ret_val = 0, max_controls = 0; char *mixername = "IntelMAD Controls"; struct snd_kcontrol_new *controls; WARN_ON(!intelmaddata); card = intelmaddata->card; strncpy(card->mixername, mixername, sizeof(card->mixername)-1); /* add all widget controls and expose the same */ if (intelmaddata->cpu_id == CPU_CHIP_PENWELL) { max_controls = MAX_CTRL_MFLD; controls = snd_intelmad_controls_mfld; } else { max_controls = MAX_CTRL_MRST; controls = snd_intelmad_controls_mrst; } for (idx = 0; idx < max_controls; idx++) { ret_val = snd_ctl_add(card, snd_ctl_new1(&controls[idx], intelmaddata)); pr_debug("mixer[idx]=%d added\n", idx); if (ret_val) { pr_err("in adding of control index = %d\n", idx); break; } } return ret_val; } static int snd_intelmad_dev_free(struct snd_device *device) { struct snd_intelmad *intelmaddata; WARN_ON(!device); intelmaddata = device->device_data; pr_debug("snd_intelmad_dev_free called\n"); unregister_sst_card(intelmaddata->sstdrv_ops); /* free allocated memory for internal context */ destroy_workqueue(intelmaddata->mad_jack_wq); device->device_data = NULL; kfree(intelmaddata->sstdrv_ops); kfree(intelmaddata); return 0; } static int __devinit snd_intelmad_create( struct snd_intelmad *intelmaddata, struct snd_card *card) { int ret_val; static struct snd_device_ops ops = { .dev_free = snd_intelmad_dev_free, }; WARN_ON(!intelmaddata); WARN_ON(!card); /* ALSA api to register for the device */ ret_val = snd_device_new(card, SNDRV_DEV_LOWLEVEL, intelmaddata, &ops); return ret_val; } /** * snd_intelmad_probe- function registred for init * @pdev : pointer to the device struture * This function is called when the device is initialized */ int __devinit snd_intelmad_probe(struct platform_device *pdev) { struct snd_card *card; int ret_val; struct snd_intelmad *intelmaddata; const struct platform_device_id *id = platform_get_device_id(pdev); struct snd_intelmad_probe_info *info = (void *)id->driver_data; pr_debug("probe for %s cpu_id %d\n", pdev->name, info->cpu_id); pr_debug("rq_chache %x of size %x\n", info->irq_cache, info->size); if (!strcmp(pdev->name, DRIVER_NAME_MRST)) pr_debug("detected MRST\n"); else if (!strcmp(pdev->name, DRIVER_NAME_MFLD)) pr_debug("detected MFLD\n"); else { pr_err("detected unknown device abort!!\n"); return -EIO; } if ((info->cpu_id < CPU_CHIP_LINCROFT) || (info->cpu_id > CPU_CHIP_PENWELL)) { pr_err("detected unknown cpu_id abort!!\n"); return -EIO; } /* allocate memory for saving internal context and working */ intelmaddata = kzalloc(sizeof(*intelmaddata), GFP_KERNEL); if (!intelmaddata) { pr_debug("mem alloctn fail\n"); return -ENOMEM; } intelmad_drv = intelmaddata; /* allocate memory for LPE API set */ intelmaddata->sstdrv_ops = kzalloc(sizeof(struct intel_sst_card_ops), GFP_KERNEL); if (!intelmaddata->sstdrv_ops) { pr_err("mem allocation for ops fail\n"); kfree(intelmaddata); return -ENOMEM; } intelmaddata->cpu_id = info->cpu_id; /* create a card instance with ALSA framework */ ret_val = snd_card_create(card_index, card_id, THIS_MODULE, 0, &card); if (ret_val) { pr_err("snd_card_create fail\n"); goto free_allocs; } intelmaddata->pdev = pdev; intelmaddata->irq = platform_get_irq(pdev, 0); platform_set_drvdata(pdev, intelmaddata); intelmaddata->card = card; intelmaddata->card_id = card_id; intelmaddata->card_index = card_index; intelmaddata->master_mute = UNMUTE; intelmaddata->playback_cnt = intelmaddata->capture_cnt = 0; strncpy(card->driver, INTEL_MAD, strlen(INTEL_MAD)); strncpy(card->shortname, INTEL_MAD, strlen(INTEL_MAD)); intelmaddata->sstdrv_ops->module_name = SST_CARD_NAMES; /* registering with LPE driver to get access to SST APIs to use */ ret_val = snd_intelmad_sst_register(intelmaddata); if (ret_val) { pr_err("snd_intelmad_sst_register failed\n"); goto set_null_data; } intelmaddata->pmic_status = PMIC_INIT; ret_val = snd_intelmad_pcm(card, intelmaddata); if (ret_val) { pr_err("snd_intelmad_pcm failed\n"); goto free_sst; } ret_val = snd_intelmad_mixer(intelmaddata); if (ret_val) { pr_err("snd_intelmad_mixer failed\n"); goto free_card; } ret_val = snd_intelmad_jack(intelmaddata); if (ret_val) { pr_err("snd_intelmad_jack failed\n"); goto free_card; } intelmaddata->adc_address = mid_initialize_adc(); /*create work queue for jack interrupt*/ INIT_WORK(&intelmaddata->mad_jack_msg.wq, sst_process_mad_jack_detection); intelmaddata->mad_jack_wq = create_workqueue("sst_mad_jack_wq"); if (!intelmaddata->mad_jack_wq) goto free_card; ret_val = snd_intelmad_register_irq(intelmaddata, info->irq_cache, info->size); if (ret_val) { pr_err("snd_intelmad_register_irq fail\n"); goto free_mad_jack_wq; } /* internal function call to register device with ALSA */ ret_val = snd_intelmad_create(intelmaddata, card); if (ret_val) { pr_err("snd_intelmad_create failed\n"); goto set_pvt_data; } card->private_data = &intelmaddata; snd_card_set_dev(card, &pdev->dev); ret_val = snd_card_register(card); if (ret_val) { pr_err("snd_card_register failed\n"); goto set_pvt_data; } if (pdev->dev.platform_data) { int gpio_amp = *(int *)pdev->dev.platform_data; if (gpio_request_one(gpio_amp, GPIOF_OUT_INIT_LOW, "amp power")) gpio_amp = 0; intelmaddata->sstdrv_ops->scard_ops->gpio_amp = gpio_amp; } pr_debug("snd_intelmad_probe complete\n"); return ret_val; set_pvt_data: card->private_data = NULL; free_mad_jack_wq: destroy_workqueue(intelmaddata->mad_jack_wq); free_card: snd_card_free(intelmaddata->card); free_sst: unregister_sst_card(intelmaddata->sstdrv_ops); set_null_data: platform_set_drvdata(pdev, NULL); free_allocs: pr_err("probe failed\n"); snd_card_free(card); kfree(intelmaddata->sstdrv_ops); kfree(intelmaddata); return ret_val; } static int snd_intelmad_remove(struct platform_device *pdev) { struct snd_intelmad *intelmaddata = platform_get_drvdata(pdev); if (intelmaddata) { if (intelmaddata->sstdrv_ops->scard_ops->gpio_amp) gpio_free(intelmaddata->sstdrv_ops->scard_ops->gpio_amp); free_irq(intelmaddata->irq, intelmaddata); snd_card_free(intelmaddata->card); } intelmad_drv = NULL; platform_set_drvdata(pdev, NULL); return 0; } /********************************************************************* * Driver initialization and exit *********************************************************************/ static const struct platform_device_id snd_intelmad_ids[] = { {DRIVER_NAME_MRST, INFO(CPU_CHIP_LINCROFT, AUDINT_BASE, 1)}, {DRIVER_NAME_MFLD, INFO(CPU_CHIP_PENWELL, 0xFFFF7FCD, 1)}, {"", 0}, }; static struct platform_driver snd_intelmad_driver = { .driver = { .owner = THIS_MODULE, .name = "intel_mid_sound_card", }, .id_table = snd_intelmad_ids, .probe = snd_intelmad_probe, .remove = __devexit_p(snd_intelmad_remove), }; /* * alsa_card_intelmad_init- driver init function * * This function is called when driver module is inserted */ static int __init alsa_card_intelmad_init(void) { pr_debug("mad_init called\n"); return platform_driver_register(&snd_intelmad_driver); } /** * alsa_card_intelmad_exit- driver exit function * * This function is called when driver module is removed */ static void __exit alsa_card_intelmad_exit(void) { pr_debug("mad_exit called\n"); return platform_driver_unregister(&snd_intelmad_driver); } module_init(alsa_card_intelmad_init) module_exit(alsa_card_intelmad_exit)