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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/drivers/media/pci/cx23885/cx23885-alsa.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *
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  *  Support for CX23885 analog audio capture
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@@ -5,16 +6,6 @@
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  *    (c) 2008 Mijhail Moreyra <mijhail.moreyra@gmail.com>
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  *    Adapted from cx88-alsa.c
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  *    (c) 2009 Steven Toth <stoth@kernellabs.com>
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- *
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- *  This program is free software; you can redistribute it and/or modify
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- *  it under the terms of the GNU General Public License as published by
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- *  the Free Software Foundation; either version 2 of the License, or
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- *  (at your option) any later version.
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- *
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- *  This program is distributed in the hope that it will be useful,
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- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- *  GNU General Public License for more details.
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  */
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10
 
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 #include "cx23885.h"
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@@ -59,7 +50,7 @@
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 MODULE_PARM_DESC(audio_debug, "enable debug messages [analog audio]");
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 /****************************************************************************
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-			Board specific funtions
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+			Board specific functions
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  ****************************************************************************/
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 /* Constants taken from cx88-reg.h */
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@@ -77,7 +68,8 @@
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 #define AUD_INT_MCHG_IRQ        (1 << 21)
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 #define GP_COUNT_CONTROL_RESET	0x3
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-static int cx23885_alsa_dma_init(struct cx23885_audio_dev *chip, int nr_pages)
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+static int cx23885_alsa_dma_init(struct cx23885_audio_dev *chip,
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+				 unsigned long nr_pages)
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 {
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 	struct cx23885_audio_buffer *buf = chip->buf;
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 	struct page *pg;
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@@ -85,11 +77,11 @@
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 	buf->vaddr = vmalloc_32(nr_pages << PAGE_SHIFT);
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 	if (NULL == buf->vaddr) {
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-		dprintk(1, "vmalloc_32(%d pages) failed\n", nr_pages);
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+		dprintk(1, "vmalloc_32(%lu pages) failed\n", nr_pages);
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 		return -ENOMEM;
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 	}
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-	dprintk(1, "vmalloc is at addr %p, size=%d\n",
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+	dprintk(1, "vmalloc is at addr %p, size=%lu\n",
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 		buf->vaddr, nr_pages << PAGE_SHIFT);
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 	memset(buf->vaddr, 0, nr_pages << PAGE_SHIFT);
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@@ -122,7 +114,7 @@
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 	struct cx23885_audio_buffer *buf = dev->buf;
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 	buf->sglen = dma_map_sg(&dev->pci->dev, buf->sglist,
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-			buf->nr_pages, PCI_DMA_FROMDEVICE);
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+			buf->nr_pages, DMA_FROM_DEVICE);
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 	if (0 == buf->sglen) {
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 		pr_warn("%s: cx23885_alsa_map_sg failed\n", __func__);
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@@ -138,7 +130,7 @@
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 	if (!buf->sglen)
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 		return 0;
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-	dma_unmap_sg(&dev->pci->dev, buf->sglist, buf->sglen, PCI_DMA_FROMDEVICE);
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+	dma_unmap_sg(&dev->pci->dev, buf->sglist, buf->nr_pages, DMA_FROM_DEVICE);
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 	buf->sglen = 0;
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 	return 0;
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 }
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@@ -504,7 +496,6 @@
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 static const struct snd_pcm_ops snd_cx23885_pcm_ops = {
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 	.open = snd_cx23885_pcm_open,
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 	.close = snd_cx23885_close,
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-	.ioctl = snd_pcm_lib_ioctl,
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 	.hw_params = snd_cx23885_hw_params,
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 	.hw_free = snd_cx23885_hw_free,
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 	.prepare = snd_cx23885_prepare,
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@@ -526,7 +517,7 @@
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 	if (err < 0)
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 		return err;
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 	pcm->private_data = chip;
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-	strcpy(pcm->name, name);
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+	strscpy(pcm->name, name, sizeof(pcm->name));
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 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cx23885_pcm_ops);
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 	return 0;
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@@ -571,7 +562,7 @@
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 	if (err < 0)
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 		goto error;
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-	strcpy(card->driver, "CX23885");
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+	strscpy(card->driver, "CX23885", sizeof(card->driver));
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 	sprintf(card->shortname, "Conexant CX23885");
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 	sprintf(card->longname, "%s at %s", card->shortname, dev->name);
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