]> git.karo-electronics.de Git - mv-sheeva.git/blobdiff - drivers/staging/intel_sst/intel_sst_drv_interface.c
Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[mv-sheeva.git] / drivers / staging / intel_sst / intel_sst_drv_interface.c
index 669e298016f26062f08719959eec53c47305698e..ea8e251b5099fd4307572a0d77aef1519ca92f9f 100644 (file)
  *  Upper layer interfaces (MAD driver, MMF) to SST driver
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/delay.h>
 #include <linux/pci.h>
 #include <linux/fs.h>
 #include <linux/firmware.h>
+#include <linux/pm_runtime.h>
 #include "intel_sst.h"
 #include "intel_sst_ioctl.h"
 #include "intel_sst_fw_ipc.h"
@@ -45,17 +48,18 @@ int sst_download_fw(void)
 {
        int retval;
        const struct firmware *fw_sst;
-       const char *name;
+       char name[20];
+
        if (sst_drv_ctx->sst_state != SST_UN_INIT)
                return -EPERM;
-       if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID)
-               name = SST_FW_FILENAME_MRST;
-       else
-               name = SST_FW_FILENAME_MFLD;
-       pr_debug("sst: Downloading %s FW now...\n", name);
+
+       snprintf(name, sizeof(name), "%s%04x%s", "fw_sst_",
+                                       sst_drv_ctx->pci_id, ".bin");
+
+       pr_debug("Downloading %s FW now...\n", name);
        retval = request_firmware(&fw_sst, name, &sst_drv_ctx->pci->dev);
        if (retval) {
-               pr_err("sst: request fw failed %d\n", retval);
+               pr_err("request fw failed %d\n", retval);
                return retval;
        }
        sst_drv_ctx->alloc_block[0].sst_id = FW_DWNL_ID;
@@ -66,7 +70,7 @@ int sst_download_fw(void)
 
        retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[0]);
        if (retval)
-               pr_err("sst: fw download failed %d\n" , retval);
+               pr_err("fw download failed %d\n" , retval);
 end_restore:
        release_firmware(fw_sst);
        sst_drv_ctx->alloc_block[0].sst_id = BLOCK_UNINIT;
@@ -90,7 +94,7 @@ int sst_stalled(void)
 
                retry--;
        }
-       pr_debug("sst: in Stalled State\n");
+       pr_debug("in Stalled State\n");
        return retval;
 }
 
@@ -138,23 +142,23 @@ int sst_get_stream_allocated(struct snd_sst_params *str_param,
        retval = sst_alloc_stream((char *) &str_param->sparams, str_param->ops,
                                str_param->codec, str_param->device_type);
        if (retval < 0) {
-               pr_err("sst: sst_alloc_stream failed %d\n", retval);
+               pr_err("sst_alloc_stream failed %d\n", retval);
                return retval;
        }
-       pr_debug("sst: Stream allocated %d\n", retval);
+       pr_debug("Stream allocated %d\n", retval);
        str_id = retval;
        str_info = &sst_drv_ctx->streams[str_id];
        /* Block the call for reply */
        retval = sst_wait_interruptible_timeout(sst_drv_ctx,
                        &str_info->ctrl_blk, SST_BLOCK_TIMEOUT);
        if ((retval != 0) || (str_info->ctrl_blk.ret_code != 0)) {
-               pr_debug("sst: FW alloc failed retval %d, ret_code %d\n",
+               pr_debug("FW alloc failed retval %d, ret_code %d\n",
                                retval, str_info->ctrl_blk.ret_code);
                str_id = -str_info->ctrl_blk.ret_code; /*return error*/
                *lib_dnld = str_info->ctrl_blk.data;
                sst_clean_stream(str_info);
        } else
-               pr_debug("sst: FW Stream allocated sucess\n");
+               pr_debug("FW Stream allocated success\n");
        return str_id; /*will ret either error (in above if) or correct str id*/
 }
 
@@ -171,9 +175,9 @@ static int sst_get_sfreq(struct snd_sst_params *str_param)
        case SST_CODEC_TYPE_MP3:
                return str_param->sparams.uc.mp3_params.sfreq;
        case SST_CODEC_TYPE_AAC:
-               return str_param->sparams.uc.aac_params.sfreq;;
+               return str_param->sparams.uc.aac_params.sfreq;
        case SST_CODEC_TYPE_WMA9:
-               return str_param->sparams.uc.wma_params.sfreq;;
+               return str_param->sparams.uc.wma_params.sfreq;
        default:
                return 0;
        }
@@ -196,14 +200,14 @@ int sst_get_stream(struct snd_sst_params *str_param)
                /* codec download is required */
                struct snd_sst_alloc_response *response;
 
-               pr_debug("sst: Codec is required.... trying that\n");
+               pr_debug("Codec is required.... trying that\n");
                if (lib_dnld == NULL) {
-                       pr_err("sst: lib download null!!! abort\n");
+                       pr_err("lib download null!!! abort\n");
                        return -EIO;
                }
                i = sst_get_block_stream(sst_drv_ctx);
                response = sst_drv_ctx->alloc_block[i].ops_block.data;
-               pr_debug("sst: alloc block allocated = %d\n", i);
+               pr_debug("alloc block allocated = %d\n", i);
                if (i < 0) {
                        kfree(lib_dnld);
                        return -ENOMEM;
@@ -213,15 +217,15 @@ int sst_get_stream(struct snd_sst_params *str_param)
 
                sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
                if (!retval) {
-                       pr_debug("sst: codec was downloaded sucesfully\n");
+                       pr_debug("codec was downloaded successfully\n");
 
                        retval = sst_get_stream_allocated(str_param, &lib_dnld);
                        if (retval <= 0)
                                goto err;
 
-                       pr_debug("sst: Alloc done stream id %d\n", retval);
+                       pr_debug("Alloc done stream id %d\n", retval);
                } else {
-                       pr_debug("sst: codec download failed\n");
+                       pr_debug("codec download failed\n");
                        retval = -EIO;
                        goto err;
                }
@@ -279,97 +283,138 @@ void sst_process_mad_ops(struct work_struct *work)
                retval = sst_start_stream(mad_ops->stream_id);
                break;
        case SST_SND_STREAM_PROCESS:
-               pr_debug("sst: play/capt frames...\n");
+               pr_debug("play/capt frames...\n");
                break;
        default:
-               pr_err("sst:  wrong control_ops reported\n");
+               pr_err(" wrong control_ops reported\n");
        }
        return;
 }
+
+void send_intial_rx_timeslot(void)
+{
+       if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID &&
+                       sst_drv_ctx->rx_time_slot_status != RX_TIMESLOT_UNINIT
+                       && sst_drv_ctx->pmic_vendor != SND_NC)
+               sst_enable_rx_timeslot(sst_drv_ctx->rx_time_slot_status);
+}
+
 /*
- * sst_control_set - Set Control params
+ * sst_open_pcm_stream - Open PCM interface
  *
- * @control_list: list of controls to be set
+ * @str_param: parameters of pcm stream
  *
- * This function is called by MID sound card driver to set
- * SST/Sound card controls. This is registered with MID driver
+ * This function is called by MID sound card driver to open
+ * a new pcm interface
  */
-int sst_control_set(int control_element, void *value)
+int sst_open_pcm_stream(struct snd_sst_params *str_param)
 {
-       int retval = 0, str_id = 0;
-       struct stream_info *stream;
+       struct stream_info *str_info;
+       int retval;
+
+       pm_runtime_get_sync(&sst_drv_ctx->pci->dev);
 
        if (sst_drv_ctx->sst_state == SST_SUSPENDED) {
-               /*LPE is suspended, resume it before proceding*/
-               pr_debug("sst: Resuming from Suspended state\n");
+               /* LPE is suspended, resume it before proceding*/
+               pr_debug("Resuming from Suspended state\n");
                retval = intel_sst_resume(sst_drv_ctx->pci);
                if (retval) {
-                       pr_err("sst: Resume Failed = %#x, abort\n", retval);
+                       pr_err("Resume Failed = %#x, abort\n", retval);
+                       pm_runtime_put(&sst_drv_ctx->pci->dev);
                        return retval;
                }
        }
        if (sst_drv_ctx->sst_state == SST_UN_INIT) {
                /* FW is not downloaded */
-               pr_debug("sst: DSP Downloading FW now...\n");
+               pr_debug("DSP Downloading FW now...\n");
                retval = sst_download_fw();
                if (retval) {
-                       pr_err("sst: FW download fail %x, abort\n", retval);
+                       pr_err("FW download fail %x, abort\n", retval);
+                       pm_runtime_put(&sst_drv_ctx->pci->dev);
                        return retval;
                }
-               if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID &&
-                       sst_drv_ctx->rx_time_slot_status != RX_TIMESLOT_UNINIT
-                               && sst_drv_ctx->pmic_vendor != SND_NC)
-                       sst_enable_rx_timeslot(
-                                       sst_drv_ctx->rx_time_slot_status);
+               send_intial_rx_timeslot();
        }
 
-       switch (control_element) {
-       case SST_SND_ALLOC: {
-               struct snd_sst_params *str_param;
-               struct stream_info *str_info;
+       if (!str_param) {
+               pm_runtime_put(&sst_drv_ctx->pci->dev);
+               return -EINVAL;
+       }
 
-               str_param = (struct snd_sst_params *)value;
-               BUG_ON(!str_param);
-               retval = sst_get_stream(str_param);
-               if (retval >= 0)
-                       sst_drv_ctx->stream_cnt++;
+       retval = sst_get_stream(str_param);
+       if (retval > 0) {
+               sst_drv_ctx->stream_cnt++;
                str_info = &sst_drv_ctx->streams[retval];
                str_info->src = MAD_DRV;
-               break;
-       }
+       } else
+               pm_runtime_put(&sst_drv_ctx->pci->dev);
+
+       return retval;
+}
 
+/*
+ * sst_close_pcm_stream - Close PCM interface
+ *
+ * @str_id: stream id to be closed
+ *
+ * This function is called by MID sound card driver to close
+ * an existing pcm interface
+ */
+int sst_close_pcm_stream(unsigned int str_id)
+{
+       struct stream_info *stream;
+
+       pr_debug("sst: stream free called\n");
+       if (sst_validate_strid(str_id))
+               return -EINVAL;
+       stream = &sst_drv_ctx->streams[str_id];
+       free_stream_context(str_id);
+       stream->pcm_substream = NULL;
+       stream->status = STREAM_UN_INIT;
+       stream->period_elapsed = NULL;
+       sst_drv_ctx->stream_cnt--;
+       pr_debug("sst: will call runtime put now\n");
+       pm_runtime_put(&sst_drv_ctx->pci->dev);
+       return 0;
+}
+
+/*
+ * sst_device_control - Set Control params
+ *
+ * @cmd: control cmd to be set
+ * @arg: command argument
+ *
+ * This function is called by MID sound card driver to set
+ * SST/Sound card controls for an opened stream.
+ * This is registered with MID driver
+ */
+int sst_device_control(int cmd, void *arg)
+{
+       int retval = 0, str_id = 0;
+
+       switch (cmd) {
        case SST_SND_PAUSE:
        case SST_SND_RESUME:
        case SST_SND_DROP:
        case SST_SND_START:
-               sst_drv_ctx->mad_ops.control_op = control_element;
-               sst_drv_ctx->mad_ops.stream_id = *(int *)value;
+               sst_drv_ctx->mad_ops.control_op = cmd;
+               sst_drv_ctx->mad_ops.stream_id = *(int *)arg;
                queue_work(sst_drv_ctx->mad_wq, &sst_drv_ctx->mad_ops.wq);
                break;
 
-       case SST_SND_FREE:
-               str_id = *(int *)value;
-               stream = &sst_drv_ctx->streams[str_id];
-               free_stream_context(str_id);
-               stream->pcm_substream = NULL;
-               stream->status = STREAM_UN_INIT;
-               stream->period_elapsed = NULL;
-               sst_drv_ctx->stream_cnt--;
-               break;
-
        case SST_SND_STREAM_INIT: {
                struct pcm_stream_info *str_info;
                struct stream_info *stream;
 
-               pr_debug("sst: stream init called\n");
-               str_info = (struct pcm_stream_info *)value;
+               pr_debug("stream init called\n");
+               str_info = (struct pcm_stream_info *)arg;
                str_id = str_info->str_id;
                retval = sst_validate_strid(str_id);
                if (retval)
                        break;
 
                stream = &sst_drv_ctx->streams[str_id];
-               pr_debug("sst: setting the period ptrs\n");
+               pr_debug("setting the period ptrs\n");
                stream->pcm_substream = str_info->mad_substream;
                stream->period_elapsed = str_info->period_elapsed;
                stream->sfreq = str_info->sfreq;
@@ -384,7 +429,7 @@ int sst_control_set(int control_element, void *value)
                struct stream_info *stream;
 
 
-               stream_info = (struct pcm_stream_info *)value;
+               stream_info = (struct pcm_stream_info *)arg;
                str_id = stream_info->str_id;
                retval = sst_validate_strid(str_id);
                if (retval)
@@ -398,26 +443,26 @@ int sst_control_set(int control_element, void *value)
                        +(str_id * sizeof(fw_tstamp))),
                        sizeof(fw_tstamp));
 
-               pr_debug("sst: Pointer Query on strid = %d ops %d\n",
+               pr_debug("Pointer Query on strid = %d ops %d\n",
                                                str_id, stream->ops);
 
                if (stream->ops == STREAM_OPS_PLAYBACK)
                        stream_info->buffer_ptr = fw_tstamp.samples_rendered;
                else
                        stream_info->buffer_ptr = fw_tstamp.samples_processed;
-               pr_debug("sst: Samples rendered = %llu, buffer ptr %llu\n",
+               pr_debug("Samples rendered = %llu, buffer ptr %llu\n",
                        fw_tstamp.samples_rendered, stream_info->buffer_ptr);
                break;
        }
        case SST_ENABLE_RX_TIME_SLOT: {
-               int status = *(int *)value;
+               int status = *(int *)arg;
                sst_drv_ctx->rx_time_slot_status = status ;
                sst_enable_rx_timeslot(status);
                break;
        }
        default:
                /* Illegal case */
-               pr_warn("sst: illegal req\n");
+               pr_warn("illegal req\n");
                return -EINVAL;
        }
 
@@ -425,8 +470,14 @@ int sst_control_set(int control_element, void *value)
 }
 
 
+struct intel_sst_pcm_control pcm_ops = {
+       .open = sst_open_pcm_stream,
+       .device_control = sst_device_control,
+       .close = sst_close_pcm_stream,
+};
+
 struct intel_sst_card_ops sst_pmic_ops = {
-       .control_set = sst_control_set,
+       .pcm_control = &pcm_ops,
 };
 
 /*
@@ -439,12 +490,12 @@ struct intel_sst_card_ops sst_pmic_ops = {
 int register_sst_card(struct intel_sst_card_ops *card)
 {
        if (!sst_drv_ctx) {
-               pr_err("sst: No SST driver register card reject\n");
+               pr_err("No SST driver register card reject\n");
                return -ENODEV;
        }
 
        if (!card || !card->module_name) {
-               pr_err("sst: Null Pointer Passed\n");
+               pr_err("Null Pointer Passed\n");
                return -EINVAL;
        }
        if (sst_drv_ctx->pmic_state == SND_MAD_UN_INIT) {
@@ -456,17 +507,17 @@ int register_sst_card(struct intel_sst_card_ops *card)
                        sst_pmic_ops.module_name = card->module_name;
                        sst_drv_ctx->pmic_state = SND_MAD_INIT_DONE;
                        sst_drv_ctx->rx_time_slot_status = 0; /*default AMIC*/
-                       card->control_set = sst_pmic_ops.control_set;
+                       card->pcm_control = sst_pmic_ops.pcm_control;
                        sst_drv_ctx->scard_ops->card_status = SND_CARD_UN_INIT;
                        return 0;
                } else {
-                       pr_err("sst: strcmp fail %s\n", card->module_name);
+                       pr_err("strcmp fail %s\n", card->module_name);
                        return -EINVAL;
                }
 
        } else {
                /* already registered a driver */
-               pr_err("sst: Repeat for registeration..denied\n");
+               pr_err("Repeat for registration..denied\n");
                return -EBADRQC;
        }
        return 0;
@@ -482,11 +533,11 @@ EXPORT_SYMBOL_GPL(register_sst_card);
  */
 void unregister_sst_card(struct intel_sst_card_ops *card)
 {
-       if (sst_pmic_ops.control_set == card->control_set) {
+       if (sst_pmic_ops.pcm_control == card->pcm_control) {
                /* unreg */
                sst_pmic_ops.module_name = "";
                sst_drv_ctx->pmic_state = SND_MAD_UN_INIT;
-               pr_debug("sst: Unregistered %s\n", card->module_name);
+               pr_debug("Unregistered %s\n", card->module_name);
        }
        return;
 }