forked from Minki/linux
ALSA: korg1212: Allocate resources with device-managed APIs
This patch converts the resource management in PCI korg1212 driver with devres as a clean up. Each manual resource management is converted with the corresponding devres helper, the page allocations are done with the devres helper, and the card object release is managed now via card->private_free instead of a lowlevel snd_device. This should give no user-visible functional changes. Link: https://lore.kernel.org/r/20210715075941.23332-40-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
parent
314f6dbb1f
commit
b5cde369b6
@ -320,10 +320,10 @@ struct snd_korg1212 {
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unsigned long inIRQ;
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void __iomem *iobase;
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struct snd_dma_buffer dma_dsp;
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struct snd_dma_buffer dma_play;
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struct snd_dma_buffer dma_rec;
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struct snd_dma_buffer dma_shared;
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struct snd_dma_buffer *dma_dsp;
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struct snd_dma_buffer *dma_play;
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struct snd_dma_buffer *dma_rec;
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struct snd_dma_buffer *dma_shared;
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u32 DataBufsSize;
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@ -1200,8 +1200,8 @@ static int snd_korg1212_downloadDSPCode(struct snd_korg1212 *korg1212)
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snd_korg1212_setCardState(korg1212, K1212_STATE_DSP_IN_PROCESS);
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rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_StartDSPDownload,
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UpperWordSwap(korg1212->dma_dsp.addr),
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0, 0, 0);
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UpperWordSwap(korg1212->dma_dsp->addr),
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0, 0, 0);
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if (rc)
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K1212_DEBUG_PRINTK("K1212_DEBUG: Start DSP Download RC = %d [%s]\n",
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rc, stateName[korg1212->cardState]);
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@ -1382,7 +1382,7 @@ static int snd_korg1212_playback_open(struct snd_pcm_substream *substream)
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snd_korg1212_OpenCard(korg1212);
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runtime->hw = snd_korg1212_playback_info;
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snd_pcm_set_runtime_buffer(substream, &korg1212->dma_play);
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snd_pcm_set_runtime_buffer(substream, korg1212->dma_play);
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spin_lock_irqsave(&korg1212->lock, flags);
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@ -1413,7 +1413,7 @@ static int snd_korg1212_capture_open(struct snd_pcm_substream *substream)
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snd_korg1212_OpenCard(korg1212);
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runtime->hw = snd_korg1212_capture_info;
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snd_pcm_set_runtime_buffer(substream, &korg1212->dma_rec);
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snd_pcm_set_runtime_buffer(substream, korg1212->dma_rec);
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spin_lock_irqsave(&korg1212->lock, flags);
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@ -2080,71 +2080,16 @@ static void snd_korg1212_proc_init(struct snd_korg1212 *korg1212)
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snd_korg1212_proc_read);
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}
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static int
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snd_korg1212_free(struct snd_korg1212 *korg1212)
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static void
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snd_korg1212_free(struct snd_card *card)
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{
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snd_korg1212_TurnOffIdleMonitor(korg1212);
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struct snd_korg1212 *korg1212 = card->private_data;
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if (korg1212->irq >= 0) {
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snd_korg1212_DisableCardInterrupts(korg1212);
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free_irq(korg1212->irq, korg1212);
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korg1212->irq = -1;
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}
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if (korg1212->iobase != NULL) {
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iounmap(korg1212->iobase);
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korg1212->iobase = NULL;
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}
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pci_release_regions(korg1212->pci);
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// ----------------------------------------------------
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// free up memory resources used for the DSP download.
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// ----------------------------------------------------
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if (korg1212->dma_dsp.area) {
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snd_dma_free_pages(&korg1212->dma_dsp);
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korg1212->dma_dsp.area = NULL;
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}
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#ifndef K1212_LARGEALLOC
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// ------------------------------------------------------
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// free up memory resources used for the Play/Rec Buffers
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// ------------------------------------------------------
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if (korg1212->dma_play.area) {
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snd_dma_free_pages(&korg1212->dma_play);
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korg1212->dma_play.area = NULL;
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}
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if (korg1212->dma_rec.area) {
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snd_dma_free_pages(&korg1212->dma_rec);
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korg1212->dma_rec.area = NULL;
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}
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#endif
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// ----------------------------------------------------
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// free up memory resources used for the Shared Buffers
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// ----------------------------------------------------
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if (korg1212->dma_shared.area) {
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snd_dma_free_pages(&korg1212->dma_shared);
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korg1212->dma_shared.area = NULL;
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}
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pci_disable_device(korg1212->pci);
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kfree(korg1212);
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return 0;
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snd_korg1212_TurnOffIdleMonitor(korg1212);
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snd_korg1212_DisableCardInterrupts(korg1212);
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}
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static int snd_korg1212_dev_free(struct snd_device *device)
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{
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struct snd_korg1212 *korg1212 = device->device_data;
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K1212_DEBUG_PRINTK("K1212_DEBUG: Freeing device\n");
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return snd_korg1212_free(korg1212);
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}
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static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
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struct snd_korg1212 **rchip)
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static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci)
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{
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int err, rc;
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@ -2152,24 +2097,13 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
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unsigned iomem_size;
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__maybe_unused unsigned ioport_size;
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__maybe_unused unsigned iomem2_size;
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struct snd_korg1212 * korg1212;
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struct snd_korg1212 *korg1212 = card->private_data;
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const struct firmware *dsp_code;
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static const struct snd_device_ops ops = {
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.dev_free = snd_korg1212_dev_free,
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};
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* rchip = NULL;
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err = pci_enable_device(pci);
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err = pcim_enable_device(pci);
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if (err < 0)
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return err;
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korg1212 = kzalloc(sizeof(*korg1212), GFP_KERNEL);
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if (korg1212 == NULL) {
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pci_disable_device(pci);
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return -ENOMEM;
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}
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korg1212->card = card;
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korg1212->pci = pci;
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@ -2198,12 +2132,9 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
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for (i=0; i<kAudioChannels; i++)
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korg1212->volumePhase[i] = 0;
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err = pci_request_regions(pci, "korg1212");
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if (err < 0) {
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kfree(korg1212);
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pci_disable_device(pci);
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err = pcim_iomap_regions_request_all(pci, 1 << 0, "korg1212");
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if (err < 0)
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return err;
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}
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korg1212->iomem = pci_resource_start(korg1212->pci, 0);
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korg1212->ioport = pci_resource_start(korg1212->pci, 1);
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@ -2223,26 +2154,20 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
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korg1212->iomem2, iomem2_size,
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stateName[korg1212->cardState]);
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korg1212->iobase = ioremap(korg1212->iomem, iomem_size);
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if (!korg1212->iobase) {
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snd_printk(KERN_ERR "korg1212: unable to remap memory region 0x%lx-0x%lx\n", korg1212->iomem,
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korg1212->iomem + iomem_size - 1);
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snd_korg1212_free(korg1212);
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return -EBUSY;
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}
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korg1212->iobase = pcim_iomap_table(pci)[0];
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err = request_irq(pci->irq, snd_korg1212_interrupt,
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err = devm_request_irq(&pci->dev, pci->irq, snd_korg1212_interrupt,
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IRQF_SHARED,
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KBUILD_MODNAME, korg1212);
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if (err) {
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snd_printk(KERN_ERR "korg1212: unable to grab IRQ %d\n", pci->irq);
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snd_korg1212_free(korg1212);
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return -EBUSY;
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}
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korg1212->irq = pci->irq;
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card->sync_irq = korg1212->irq;
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card->private_free = snd_korg1212_free;
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pci_set_master(korg1212->pci);
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@ -2281,41 +2206,36 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
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korg1212->idRegPtr,
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stateName[korg1212->cardState]);
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if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
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sizeof(struct KorgSharedBuffer), &korg1212->dma_shared) < 0) {
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snd_printk(KERN_ERR "korg1212: can not allocate shared buffer memory (%zd bytes)\n", sizeof(struct KorgSharedBuffer));
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snd_korg1212_free(korg1212);
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return -ENOMEM;
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}
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korg1212->sharedBufferPtr = (struct KorgSharedBuffer *)korg1212->dma_shared.area;
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korg1212->sharedBufferPhy = korg1212->dma_shared.addr;
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korg1212->dma_shared = snd_devm_alloc_pages(&pci->dev,
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SNDRV_DMA_TYPE_DEV,
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sizeof(struct KorgSharedBuffer));
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if (!korg1212->dma_shared)
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return -ENOMEM;
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korg1212->sharedBufferPtr = (struct KorgSharedBuffer *)korg1212->dma_shared->area;
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korg1212->sharedBufferPhy = korg1212->dma_shared->addr;
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K1212_DEBUG_PRINTK("K1212_DEBUG: Shared Buffer Area = 0x%p (0x%08lx), %d bytes\n", korg1212->sharedBufferPtr, korg1212->sharedBufferPhy, sizeof(struct KorgSharedBuffer));
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#ifndef K1212_LARGEALLOC
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korg1212->DataBufsSize = sizeof(struct KorgAudioBuffer) * kNumBuffers;
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korg1212->dma_play = snd_devm_alloc_pages(&pci->dev, SNDRV_DMA_TYPE_DEV,
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korg1212->DataBufsSize);
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if (!korg1212->dma_play)
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return -ENOMEM;
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if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
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korg1212->DataBufsSize, &korg1212->dma_play) < 0) {
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snd_printk(KERN_ERR "korg1212: can not allocate play data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
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snd_korg1212_free(korg1212);
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return -ENOMEM;
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}
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korg1212->playDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_play.area;
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korg1212->PlayDataPhy = korg1212->dma_play.addr;
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korg1212->playDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_play->area;
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korg1212->PlayDataPhy = korg1212->dma_play->addr;
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K1212_DEBUG_PRINTK("K1212_DEBUG: Play Data Area = 0x%p (0x%08x), %d bytes\n",
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korg1212->playDataBufsPtr, korg1212->PlayDataPhy, korg1212->DataBufsSize);
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if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
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korg1212->DataBufsSize, &korg1212->dma_rec) < 0) {
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snd_printk(KERN_ERR "korg1212: can not allocate record data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
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snd_korg1212_free(korg1212);
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return -ENOMEM;
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}
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korg1212->recordDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_rec.area;
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korg1212->RecDataPhy = korg1212->dma_rec.addr;
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korg1212->dma_rec = snd_devm_alloc_pages(&pci->dev, SNDRV_DMA_TYPE_DEV,
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korg1212->DataBufsSize);
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if (!korg1212->dma_rec)
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return -ENOMEM;
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korg1212->recordDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_rec->area;
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korg1212->RecDataPhy = korg1212->dma_rec->addr;
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K1212_DEBUG_PRINTK("K1212_DEBUG: Record Data Area = 0x%p (0x%08x), %d bytes\n",
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korg1212->recordDataBufsPtr, korg1212->RecDataPhy, korg1212->DataBufsSize);
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@ -2336,26 +2256,22 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
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korg1212->AdatTimeCodePhy = korg1212->sharedBufferPhy +
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offsetof(struct KorgSharedBuffer, AdatTimeCode);
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korg1212->dma_dsp = snd_devm_alloc_pages(&pci->dev, SNDRV_DMA_TYPE_DEV,
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dsp_code->size);
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if (!korg1212->dma_dsp)
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return -ENOMEM;
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err = request_firmware(&dsp_code, "korg/k1212.dsp", &pci->dev);
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if (err < 0) {
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snd_printk(KERN_ERR "firmware not available\n");
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snd_korg1212_free(korg1212);
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return err;
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}
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if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
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dsp_code->size, &korg1212->dma_dsp) < 0) {
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snd_printk(KERN_ERR "korg1212: cannot allocate dsp code memory (%zd bytes)\n", dsp_code->size);
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snd_korg1212_free(korg1212);
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release_firmware(dsp_code);
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return -ENOMEM;
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}
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K1212_DEBUG_PRINTK("K1212_DEBUG: DSP Code area = 0x%p (0x%08x) %d bytes [%s]\n",
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korg1212->dma_dsp.area, korg1212->dma_dsp.addr, dsp_code->size,
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korg1212->dma_dsp->area, korg1212->dma_dsp->addr, dsp_code->size,
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stateName[korg1212->cardState]);
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memcpy(korg1212->dma_dsp.area, dsp_code->data, dsp_code->size);
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memcpy(korg1212->dma_dsp->area, dsp_code->data, dsp_code->size);
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release_firmware(dsp_code);
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@ -2364,12 +2280,6 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
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if (rc)
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K1212_DEBUG_PRINTK("K1212_DEBUG: Reboot Card - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
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err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, korg1212, &ops);
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if (err < 0) {
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snd_korg1212_free(korg1212);
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return err;
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}
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snd_korg1212_EnableCardInterrupts(korg1212);
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mdelay(CARD_BOOT_DELAY_IN_MS);
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@ -2411,10 +2321,8 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
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}
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snd_korg1212_proc_init(korg1212);
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* rchip = korg1212;
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return 0;
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return 0;
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}
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/*
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@ -2437,16 +2345,15 @@ snd_korg1212_probe(struct pci_dev *pci,
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dev++;
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return -ENOENT;
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}
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err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
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0, &card);
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err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
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sizeof(*korg1212), &card);
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if (err < 0)
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return err;
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korg1212 = card->private_data;
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err = snd_korg1212_create(card, pci, &korg1212);
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if (err < 0) {
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snd_card_free(card);
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err = snd_korg1212_create(card, pci);
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if (err < 0)
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return err;
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}
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strcpy(card->driver, "korg1212");
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strcpy(card->shortname, "korg1212");
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@ -2456,25 +2363,17 @@ snd_korg1212_probe(struct pci_dev *pci,
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K1212_DEBUG_PRINTK("K1212_DEBUG: %s\n", card->longname);
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err = snd_card_register(card);
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if (err < 0) {
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snd_card_free(card);
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if (err < 0)
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return err;
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}
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pci_set_drvdata(pci, card);
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dev++;
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return 0;
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}
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static void snd_korg1212_remove(struct pci_dev *pci)
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{
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snd_card_free(pci_get_drvdata(pci));
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}
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static struct pci_driver korg1212_driver = {
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.name = KBUILD_MODNAME,
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.id_table = snd_korg1212_ids,
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.probe = snd_korg1212_probe,
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.remove = snd_korg1212_remove,
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};
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module_pci_driver(korg1212_driver);
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