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hc
2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87 
 kernel/sound/sparc/dbri.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * Driver for DBRI sound chip found on Sparcs.
34  * Copyright (C) 2004, 2005 Martin Habets (mhabets@users.sourceforge.net)
....@@ -21,7 +22,7 @@
2122  *   - Data sheet of the T7903, a newer but very similar ISA bus equivalent
2223  *     available from the Lucent (formerly AT&T microelectronics) home
2324  *     page.
24
- *   - http://www.freesoft.org/Linux/DBRI/
25
+ *   - https://www.freesoft.org/Linux/DBRI/
2526  * - MMCODEC: Crystal Semiconductor CS4215 16 bit Multimedia Audio Codec
2627  *   Interfaces: CHI, Audio In & Out, 2 bits parallel
2728  *   Documentation: from the Crystal Semiconductor home page.
....@@ -103,7 +104,7 @@
103104 MODULE_PARM_DESC(dbri_debug, "Debug value for Sun DBRI soundcard.");
104105 
105106 #ifdef DBRI_DEBUG
106
-static char *cmds[] = {
107
+static const char * const cmds[] = {
107108 	"WAIT", "PAUSE", "JUMP", "IIQ", "REX", "SDP", "CDP", "DTS",
108109 	"SSP", "CHI", "NT", "TE", "CDEC", "TEST", "CDM", "RESRV"
109110 };
....@@ -579,12 +580,16 @@
579580 	switch (len) {
580581 	case 32:
581582 		b = ((b & 0xffff0000) >> 16) | ((b & 0x0000ffff) << 16);
583
+		fallthrough;
582584 	case 16:
583585 		b = ((b & 0xff00ff00) >> 8) | ((b & 0x00ff00ff) << 8);
586
+		fallthrough;
584587 	case 8:
585588 		b = ((b & 0xf0f0f0f0) >> 4) | ((b & 0x0f0f0f0f) << 4);
589
+		fallthrough;
586590 	case 4:
587591 		b = ((b & 0xcccccccc) >> 2) | ((b & 0x33333333) << 2);
592
+		fallthrough;
588593 	case 2:
589594 		b = ((b & 0xaaaaaaaa) >> 1) | ((b & 0x55555555) << 1);
590595 	case 1:
....@@ -615,7 +620,7 @@
615620 while another can be executed. The scheme works by adding two WAIT commands
616621 after each sent batch of commands. When the next batch is prepared it is
617622 added after the WAIT commands then the WAITs are replaced with single JUMP
618
-command to the new batch. The the DBRI is forced to reread the last WAIT
623
+command to the new batch. Then the DBRI is forced to reread the last WAIT
619624 command (replaced by the JUMP by then). If the DBRI is still executing
620625 previous commands the request to reread the WAIT command is ignored.
621626 
....@@ -2094,12 +2099,6 @@
20942099 	if (ret != 0)
20952100 		return ret;
20962101 
2097
-	if ((ret = snd_pcm_lib_malloc_pages(substream,
2098
-				params_buffer_bytes(hw_params))) < 0) {
2099
-		printk(KERN_ERR "malloc_pages failed with %d\n", ret);
2100
-		return ret;
2101
-	}
2102
-
21032102 	/* hw_params can get called multiple times. Only map the DMA once.
21042103 	 */
21052104 	if (info->dvma_buffer == 0) {
....@@ -2146,7 +2145,7 @@
21462145 		info->pipe = -1;
21472146 	}
21482147 
2149
-	return snd_pcm_lib_free_pages(substream);
2148
+	return 0;
21502149 }
21512150 
21522151 static int snd_dbri_prepare(struct snd_pcm_substream *substream)
....@@ -2216,7 +2215,6 @@
22162215 static const struct snd_pcm_ops snd_dbri_ops = {
22172216 	.open = snd_dbri_open,
22182217 	.close = snd_dbri_close,
2219
-	.ioctl = snd_pcm_lib_ioctl,
22202218 	.hw_params = snd_dbri_hw_params,
22212219 	.hw_free = snd_dbri_hw_free,
22222220 	.prepare = snd_dbri_prepare,
....@@ -2243,12 +2241,8 @@
22432241 	pcm->info_flags = 0;
22442242 	strcpy(pcm->name, card->shortname);
22452243 
2246
-	if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm,
2247
-			SNDRV_DMA_TYPE_CONTINUOUS,
2248
-			snd_dma_continuous_data(GFP_KERNEL),
2249
-			64 * 1024, 64 * 1024)) < 0)
2250
-		return err;
2251
-
2244
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
2245
+				       NULL, 64 * 1024, 64 * 1024);
22522246 	return 0;
22532247 }
22542248 
....@@ -2416,7 +2410,7 @@
24162410   .private_value = (entry) | ((shift) << 8) | ((mask) << 16) |	\
24172411 			((invert) << 24) },
24182412 
2419
-static struct snd_kcontrol_new dbri_controls[] = {
2413
+static const struct snd_kcontrol_new dbri_controls[] = {
24202414 	{
24212415 	 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
24222416 	 .name  = "Playback Volume",
....@@ -2510,16 +2504,10 @@
25102504 static void snd_dbri_proc(struct snd_card *card)
25112505 {
25122506 	struct snd_dbri *dbri = card->private_data;
2513
-	struct snd_info_entry *entry;
25142507 
2515
-	if (!snd_card_proc_new(card, "regs", &entry))
2516
-		snd_info_set_text_ops(entry, dbri, dbri_regs_read);
2517
-
2508
+	snd_card_ro_proc_new(card, "regs", dbri, dbri_regs_read);
25182509 #ifdef DBRI_DEBUG
2519
-	if (!snd_card_proc_new(card, "debug", &entry)) {
2520
-		snd_info_set_text_ops(entry, dbri, dbri_debug_read);
2521
-		entry->mode = S_IFREG | 0444;	/* Readable only. */
2522
-	}
2510
+	snd_card_ro_proc_new(card, "debug", dbri, dbri_debug_read);
25232511 #endif
25242512 }
25252513 
....@@ -2541,8 +2529,8 @@
25412529 	dbri->op = op;
25422530 	dbri->irq = irq;
25432531 
2544
-	dbri->dma = dma_zalloc_coherent(&op->dev, sizeof(struct dbri_dma),
2545
-					&dbri->dma_dvma, GFP_KERNEL);
2532
+	dbri->dma = dma_alloc_coherent(&op->dev, sizeof(struct dbri_dma),
2533
+				       &dbri->dma_dvma, GFP_KERNEL);
25462534 	if (!dbri->dma)
25472535 		return -ENOMEM;
25482536