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2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390 
 kernel/sound/usb/usx2y/usX2Yhwdep.c
....@@ -1,23 +1,10 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * Driver for Tascam US-X2Y USB soundcards
34  *
45  * FPGA Loader + ALSA Startup
56  *
67  * Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de>
7
- *
8
- *   This program is free software; you can redistribute it and/or modify
9
- *   it under the terms of the GNU General Public License as published by
10
- *   the Free Software Foundation; either version 2 of the License, or
11
- *   (at your option) any later version.
12
- *
13
- *   This program is distributed in the hope that it will be useful,
14
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
- *   GNU General Public License for more details.
17
- *
18
- *   You should have received a copy of the GNU General Public License
19
- *   along with this program; if not, write to the Free Software
20
- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
218  */
229 
2310 #include <linux/interrupt.h>
....@@ -42,7 +29,7 @@
4229 		   vmf->pgoff);
4330 	
4431 	offset = vmf->pgoff << PAGE_SHIFT;
45
-	vaddr = (char *)((struct usX2Ydev *)vmf->vma->vm_private_data)->us428ctls_sharedmem + offset;
32
+	vaddr = (char *)((struct usx2ydev *)vmf->vma->vm_private_data)->us428ctls_sharedmem + offset;
4633 	page = virt_to_page(vaddr);
4734 	get_page(page);
4835 	vmf->page = page;
....@@ -60,7 +47,7 @@
6047 static int snd_us428ctls_mmap(struct snd_hwdep * hw, struct file *filp, struct vm_area_struct *area)
6148 {
6249 	unsigned long	size = (unsigned long)(area->vm_end - area->vm_start);
63
-	struct usX2Ydev	*us428 = hw->private_data;
50
+	struct usx2ydev	*us428 = hw->private_data;
6451 
6552 	// FIXME this hwdep interface is used twice: fpga download and mmap for controlling Lights etc. Maybe better using 2 hwdep devs?
6653 	// so as long as the device isn't fully initialised yet we return -EBUSY here.
....@@ -75,10 +62,11 @@
7562 
7663 	if (!us428->us428ctls_sharedmem) {
7764 		init_waitqueue_head(&us428->us428ctls_wait_queue_head);
78
-		if(!(us428->us428ctls_sharedmem = snd_malloc_pages(sizeof(struct us428ctls_sharedmem), GFP_KERNEL)))
65
+		us428->us428ctls_sharedmem = alloc_pages_exact(sizeof(struct us428ctls_sharedmem), GFP_KERNEL);
66
+		if (!us428->us428ctls_sharedmem)
7967 			return -ENOMEM;
8068 		memset(us428->us428ctls_sharedmem, -1, sizeof(struct us428ctls_sharedmem));
81
-		us428->us428ctls_sharedmem->CtlSnapShotLast = -2;
69
+		us428->us428ctls_sharedmem->ctl_snapshot_last = -2;
8270 	}
8371 	area->vm_ops = &us428ctls_vm_ops;
8472 	area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
....@@ -89,29 +77,29 @@
8977 static __poll_t snd_us428ctls_poll(struct snd_hwdep *hw, struct file *file, poll_table *wait)
9078 {
9179 	__poll_t	mask = 0;
92
-	struct usX2Ydev	*us428 = hw->private_data;
80
+	struct usx2ydev	*us428 = hw->private_data;
9381 	struct us428ctls_sharedmem *shm = us428->us428ctls_sharedmem;
9482 	if (us428->chip_status & USX2Y_STAT_CHIP_HUP)
9583 		return EPOLLHUP;
9684 
9785 	poll_wait(file, &us428->us428ctls_wait_queue_head, wait);
9886 
99
-	if (shm != NULL && shm->CtlSnapShotLast != shm->CtlSnapShotRed)
87
+	if (shm != NULL && shm->ctl_snapshot_last != shm->ctl_snapshot_red)
10088 		mask |= EPOLLIN;
10189 
10290 	return mask;
10391 }
10492 
10593 
106
-static int snd_usX2Y_hwdep_dsp_status(struct snd_hwdep *hw,
94
+static int snd_usx2y_hwdep_dsp_status(struct snd_hwdep *hw,
10795 				      struct snd_hwdep_dsp_status *info)
10896 {
109
-	static char *type_ids[USX2Y_TYPE_NUMS] = {
97
+	static const char * const type_ids[USX2Y_TYPE_NUMS] = {
11098 		[USX2Y_TYPE_122] = "us122",
11199 		[USX2Y_TYPE_224] = "us224",
112100 		[USX2Y_TYPE_428] = "us428",
113101 	};
114
-	struct usX2Ydev	*us428 = hw->private_data;
102
+	struct usx2ydev	*us428 = hw->private_data;
115103 	int id = -1;
116104 
117105 	switch (le16_to_cpu(us428->dev->descriptor.idProduct)) {
....@@ -136,56 +124,56 @@
136124 }
137125 
138126 
139
-static int usX2Y_create_usbmidi(struct snd_card *card)
127
+static int usx2y_create_usbmidi(struct snd_card *card)
140128 {
141
-	static struct snd_usb_midi_endpoint_info quirk_data_1 = {
129
+	static const struct snd_usb_midi_endpoint_info quirk_data_1 = {
142130 		.out_ep = 0x06,
143131 		.in_ep = 0x06,
144132 		.out_cables =	0x001,
145133 		.in_cables =	0x001
146134 	};
147
-	static struct snd_usb_audio_quirk quirk_1 = {
135
+	static const struct snd_usb_audio_quirk quirk_1 = {
148136 		.vendor_name =	"TASCAM",
149137 		.product_name =	NAME_ALLCAPS,
150138 		.ifnum = 	0,
151139        		.type = QUIRK_MIDI_FIXED_ENDPOINT,
152140 		.data = &quirk_data_1
153141 	};
154
-	static struct snd_usb_midi_endpoint_info quirk_data_2 = {
142
+	static const struct snd_usb_midi_endpoint_info quirk_data_2 = {
155143 		.out_ep = 0x06,
156144 		.in_ep = 0x06,
157145 		.out_cables =	0x003,
158146 		.in_cables =	0x003
159147 	};
160
-	static struct snd_usb_audio_quirk quirk_2 = {
148
+	static const struct snd_usb_audio_quirk quirk_2 = {
161149 		.vendor_name =	"TASCAM",
162150 		.product_name =	"US428",
163151 		.ifnum = 	0,
164152        		.type = QUIRK_MIDI_FIXED_ENDPOINT,
165153 		.data = &quirk_data_2
166154 	};
167
-	struct usb_device *dev = usX2Y(card)->dev;
155
+	struct usb_device *dev = usx2y(card)->dev;
168156 	struct usb_interface *iface = usb_ifnum_to_if(dev, 0);
169
-	struct snd_usb_audio_quirk *quirk =
157
+	const struct snd_usb_audio_quirk *quirk =
170158 		le16_to_cpu(dev->descriptor.idProduct) == USB_ID_US428 ?
171159 		&quirk_2 : &quirk_1;
172160 
173
-	snd_printdd("usX2Y_create_usbmidi \n");
174
-	return snd_usbmidi_create(card, iface, &usX2Y(card)->midi_list, quirk);
161
+	snd_printdd("usx2y_create_usbmidi \n");
162
+	return snd_usbmidi_create(card, iface, &usx2y(card)->midi_list, quirk);
175163 }
176164 
177
-static int usX2Y_create_alsa_devices(struct snd_card *card)
165
+static int usx2y_create_alsa_devices(struct snd_card *card)
178166 {
179167 	int err;
180168 
181169 	do {
182
-		if ((err = usX2Y_create_usbmidi(card)) < 0) {
183
-			snd_printk(KERN_ERR "usX2Y_create_alsa_devices: usX2Y_create_usbmidi error %i \n", err);
170
+		if ((err = usx2y_create_usbmidi(card)) < 0) {
171
+			snd_printk(KERN_ERR "usx2y_create_alsa_devices: usx2y_create_usbmidi error %i \n", err);
184172 			break;
185173 		}
186
-		if ((err = usX2Y_audio_create(card)) < 0) 
174
+		if ((err = usx2y_audio_create(card)) < 0) 
187175 			break;
188
-		if ((err = usX2Y_hwdep_pcm_new(card)) < 0)
176
+		if ((err = usx2y_hwdep_pcm_new(card)) < 0)
189177 			break;
190178 		if ((err = snd_card_register(card)) < 0)
191179 			break;
....@@ -194,10 +182,10 @@
194182 	return err;
195183 } 
196184 
197
-static int snd_usX2Y_hwdep_dsp_load(struct snd_hwdep *hw,
185
+static int snd_usx2y_hwdep_dsp_load(struct snd_hwdep *hw,
198186 				    struct snd_hwdep_dsp_image *dsp)
199187 {
200
-	struct usX2Ydev *priv = hw->private_data;
188
+	struct usx2ydev *priv = hw->private_data;
201189 	struct usb_device* dev = priv->dev;
202190 	int lret, err;
203191 	char *buf;
....@@ -218,19 +206,19 @@
218206 		return err;
219207 	if (dsp->index == 1) {
220208 		msleep(250);				// give the device some time
221
-		err = usX2Y_AsyncSeq04_init(priv);
209
+		err = usx2y_async_seq04_init(priv);
222210 		if (err) {
223
-			snd_printk(KERN_ERR "usX2Y_AsyncSeq04_init error \n");
211
+			snd_printk(KERN_ERR "usx2y_async_seq04_init error \n");
224212 			return err;
225213 		}
226
-		err = usX2Y_In04_init(priv);
214
+		err = usx2y_in04_init(priv);
227215 		if (err) {
228
-			snd_printk(KERN_ERR "usX2Y_In04_init error \n");
216
+			snd_printk(KERN_ERR "usx2y_in04_init error \n");
229217 			return err;
230218 		}
231
-		err = usX2Y_create_alsa_devices(hw->card);
219
+		err = usx2y_create_alsa_devices(hw->card);
232220 		if (err) {
233
-			snd_printk(KERN_ERR "usX2Y_create_alsa_devices error %i \n", err);
221
+			snd_printk(KERN_ERR "usx2y_create_alsa_devices error %i \n", err);
234222 			snd_card_free(hw->card);
235223 			return err;
236224 		}
....@@ -241,7 +229,7 @@
241229 }
242230 
243231 
244
-int usX2Y_hwdep_new(struct snd_card *card, struct usb_device* device)
232
+int usx2y_hwdep_new(struct snd_card *card, struct usb_device* device)
245233 {
246234 	int err;
247235 	struct snd_hwdep *hw;
....@@ -250,9 +238,9 @@
250238 		return err;
251239 
252240 	hw->iface = SNDRV_HWDEP_IFACE_USX2Y;
253
-	hw->private_data = usX2Y(card);
254
-	hw->ops.dsp_status = snd_usX2Y_hwdep_dsp_status;
255
-	hw->ops.dsp_load = snd_usX2Y_hwdep_dsp_load;
241
+	hw->private_data = usx2y(card);
242
+	hw->ops.dsp_status = snd_usx2y_hwdep_dsp_status;
243
+	hw->ops.dsp_load = snd_usx2y_hwdep_dsp_load;
256244 	hw->ops.mmap = snd_us428ctls_mmap;
257245 	hw->ops.poll = snd_us428ctls_poll;
258246 	hw->exclusive = 1;