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-rw-r--r--sound/pci/mixart/mixart.c32
-rw-r--r--sound/pci/mixart/mixart.h2
-rw-r--r--sound/pci/mixart/mixart_core.c12
-rw-r--r--sound/pci/mixart/mixart_core.h10
-rw-r--r--sound/pci/mixart/mixart_hwdep.c20
-rw-r--r--sound/pci/mixart/mixart_mixer.c33
6 files changed, 71 insertions, 38 deletions
diff --git a/sound/pci/mixart/mixart.c b/sound/pci/mixart/mixart.c
index 7ba487443c7f..1b078b789604 100644
--- a/sound/pci/mixart/mixart.c
+++ b/sound/pci/mixart/mixart.c
@@ -32,7 +32,6 @@
MODULE_AUTHOR("Digigram <alsa@digigram.com>");
MODULE_DESCRIPTION("Digigram " CARD_NAME);
MODULE_LICENSE("GPL");
-MODULE_SUPPORTED_DEVICE("{{Digigram," CARD_NAME "}}");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
@@ -169,7 +168,7 @@ static int mixart_set_clock(struct mixart_mgr *mgr,
case PIPE_RUNNING:
if(rate != 0)
break;
- /* fall through */
+ fallthrough;
default:
if(rate == 0)
return 0; /* nothing to do */
@@ -955,9 +954,10 @@ static int snd_mixart_pcm_analog(struct snd_mixart *chip)
char name[32];
sprintf(name, "miXart analog %d", chip->chip_idx);
- if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG,
- MIXART_PLAYBACK_STREAMS,
- MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
+ err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG,
+ MIXART_PLAYBACK_STREAMS,
+ MIXART_CAPTURE_STREAMS, &pcm);
+ if (err < 0) {
dev_err(chip->card->dev,
"cannot create the analog pcm %d\n", chip->chip_idx);
return err;
@@ -988,9 +988,10 @@ static int snd_mixart_pcm_digital(struct snd_mixart *chip)
char name[32];
sprintf(name, "miXart AES/EBU %d", chip->chip_idx);
- if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL,
- MIXART_PLAYBACK_STREAMS,
- MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
+ err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL,
+ MIXART_PLAYBACK_STREAMS,
+ MIXART_CAPTURE_STREAMS, &pcm);
+ if (err < 0) {
dev_err(chip->card->dev,
"cannot create the digital pcm %d\n", chip->chip_idx);
return err;
@@ -1043,7 +1044,8 @@ static int snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int
chip->mgr = mgr;
card->sync_irq = mgr->irq;
- if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
+ err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
+ if (err < 0) {
snd_mixart_chip_free(chip);
return err;
}
@@ -1244,7 +1246,8 @@ static int snd_mixart_probe(struct pci_dev *pci,
}
/* enable PCI device */
- if ((err = pci_enable_device(pci)) < 0)
+ err = pci_enable_device(pci);
+ if (err < 0)
return err;
pci_set_master(pci);
@@ -1268,7 +1271,8 @@ static int snd_mixart_probe(struct pci_dev *pci,
mgr->irq = -1;
/* resource assignment */
- if ((err = pci_request_regions(pci, CARD_NAME)) < 0) {
+ err = pci_request_regions(pci, CARD_NAME);
+ if (err < 0) {
kfree(mgr);
pci_disable_device(pci);
return err;
@@ -1333,7 +1337,8 @@ static int snd_mixart_probe(struct pci_dev *pci,
"Digigram miXart at 0x%lx & 0x%lx, irq %i [PCM #%d]",
mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq, i);
- if ((err = snd_mixart_create(mgr, card, i)) < 0) {
+ err = snd_mixart_create(mgr, card, i);
+ if (err < 0) {
snd_card_free(card);
snd_mixart_free(mgr);
return err;
@@ -1344,7 +1349,8 @@ static int snd_mixart_probe(struct pci_dev *pci,
snd_mixart_proc_init(mgr->chip[i]);
}
- if ((err = snd_card_register(card)) < 0) {
+ err = snd_card_register(card);
+ if (err < 0) {
snd_mixart_free(mgr);
return err;
}
diff --git a/sound/pci/mixart/mixart.h b/sound/pci/mixart/mixart.h
index 42111562e9bc..cbed6d9a9f2e 100644
--- a/sound/pci/mixart/mixart.h
+++ b/sound/pci/mixart/mixart.h
@@ -69,7 +69,7 @@ struct mixart_mgr {
u32 msg_fifo[MSG_FIFO_SIZE];
int msg_fifo_readptr;
int msg_fifo_writeptr;
- atomic_t msg_processed; /* number of messages to be processed in tasklet */
+ atomic_t msg_processed; /* number of messages to be processed in irq thread */
struct mutex lock; /* interrupt lock */
struct mutex msg_lock; /* mailbox lock */
diff --git a/sound/pci/mixart/mixart_core.c b/sound/pci/mixart/mixart_core.c
index 048a2660d18d..a047ed0f84e9 100644
--- a/sound/pci/mixart/mixart_core.c
+++ b/sound/pci/mixart/mixart_core.c
@@ -23,8 +23,6 @@
#define MSG_DESCRIPTOR_SIZE 0x24
#define MSG_HEADER_SIZE (MSG_DESCRIPTOR_SIZE + 4)
-#define MSG_DEFAULT_SIZE 512
-
#define MSG_TYPE_MASK 0x00000003 /* mask for following types */
#define MSG_TYPE_NOTIFY 0 /* embedded -> driver (only notification, do not get_msg() !) */
#define MSG_TYPE_COMMAND 1 /* driver <-> embedded (a command has no answer) */
@@ -70,7 +68,6 @@ static int get_msg(struct mixart_mgr *mgr, struct mixart_msg *resp,
unsigned int i;
#endif
- mutex_lock(&mgr->msg_lock);
err = 0;
/* copy message descriptor from miXart to driver */
@@ -119,8 +116,6 @@ static int get_msg(struct mixart_mgr *mgr, struct mixart_msg *resp,
writel_be(headptr, MIXART_MEM(mgr, MSG_OUTBOUND_FREE_HEAD));
_clean_exit:
- mutex_unlock(&mgr->msg_lock);
-
return err;
}
@@ -258,7 +253,9 @@ int snd_mixart_send_msg(struct mixart_mgr *mgr, struct mixart_msg *request, int
resp.data = resp_data;
resp.size = max_resp_size;
+ mutex_lock(&mgr->msg_lock);
err = get_msg(mgr, &resp, msg_frame);
+ mutex_unlock(&mgr->msg_lock);
if( request->message_id != resp.message_id )
dev_err(&mgr->pci->dev, "RESPONSE ERROR!\n");
@@ -445,6 +442,9 @@ irqreturn_t snd_mixart_threaded_irq(int irq, void *dev_id)
struct mixart_timer_notify *notify;
notify = (struct mixart_timer_notify *)mixart_msg_data;
+ BUILD_BUG_ON(sizeof(notify) > sizeof(mixart_msg_data));
+ if (snd_BUG_ON(notify->stream_count > ARRAY_SIZE(notify->streams)))
+ break;
for(i=0; i<notify->stream_count; i++) {
u32 buffer_id = notify->streams[i].buffer_id;
@@ -527,7 +527,7 @@ irqreturn_t snd_mixart_threaded_irq(int irq, void *dev_id)
dev_err(&mgr->pci->dev,
"canceled notification %x !\n", msg);
}
- /* fall through */
+ fallthrough;
case MSG_TYPE_ANSWER:
/* answer or notification to a message we are waiting for*/
mutex_lock(&mgr->msg_lock);
diff --git a/sound/pci/mixart/mixart_core.h b/sound/pci/mixart/mixart_core.h
index fbf4731a276d..2f0e29ed5d63 100644
--- a/sound/pci/mixart/mixart_core.h
+++ b/sound/pci/mixart/mixart_core.h
@@ -49,6 +49,7 @@ enum mixart_message_id {
MSG_CLOCK_SET_PROPERTIES = 0x200002,
};
+#define MSG_DEFAULT_SIZE 512
struct mixart_msg
{
@@ -251,10 +252,17 @@ struct mixart_sample_pos
u32 sample_pos_low_part;
} __attribute__((packed));
+/*
+ * This structure is limited by the size of MSG_DEFAULT_SIZE. Instead of
+ * having MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS many streams,
+ * this is capped to have a total size below MSG_DEFAULT_SIZE.
+ */
+#define MIXART_MAX_TIMER_NOTIFY_STREAMS \
+ ((MSG_DEFAULT_SIZE - sizeof(u32)) / sizeof(struct mixart_sample_pos))
struct mixart_timer_notify
{
u32 stream_count;
- struct mixart_sample_pos streams[MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS];
+ struct mixart_sample_pos streams[MIXART_MAX_TIMER_NOTIFY_STREAMS];
} __attribute__((packed));
diff --git a/sound/pci/mixart/mixart_hwdep.c b/sound/pci/mixart/mixart_hwdep.c
index 13dcb2fd0a85..689c0f995a9c 100644
--- a/sound/pci/mixart/mixart_hwdep.c
+++ b/sound/pci/mixart/mixart_hwdep.c
@@ -22,7 +22,8 @@
/**
- * wait for a value on a peudo register, exit with a timeout
+ * mixart_wait_nice_for_register_value - wait for a value on a peudo register,
+ * exit with a timeout
*
* @mgr: pointer to miXart manager structure
* @offset: unsigned pseudo_register base + offset of value
@@ -305,9 +306,13 @@ static int mixart_first_init(struct mixart_mgr *mgr)
int err;
struct mixart_msg request;
- if((err = mixart_enum_connectors(mgr)) < 0) return err;
+ err = mixart_enum_connectors(mgr);
+ if (err < 0)
+ return err;
- if((err = mixart_enum_physio(mgr)) < 0) return err;
+ err = mixart_enum_physio(mgr);
+ if (err < 0)
+ return err;
/* send a synchro command to card (necessary to do this before first MSG_STREAM_START_STREAM_GRP_PACKET) */
/* though why not here */
@@ -527,15 +532,18 @@ static int mixart_dsp_load(struct mixart_mgr* mgr, int index, const struct firmw
for (card_index = 0; card_index < mgr->num_cards; card_index++) {
struct snd_mixart *chip = mgr->chip[card_index];
- if ((err = snd_mixart_create_pcm(chip)) < 0)
+ err = snd_mixart_create_pcm(chip);
+ if (err < 0)
return err;
if (card_index == 0) {
- if ((err = snd_mixart_create_mixer(chip->mgr)) < 0)
+ err = snd_mixart_create_mixer(chip->mgr);
+ if (err < 0)
return err;
}
- if ((err = snd_card_register(chip->card)) < 0)
+ err = snd_card_register(chip->card);
+ if (err < 0)
return err;
}
diff --git a/sound/pci/mixart/mixart_mixer.c b/sound/pci/mixart/mixart_mixer.c
index d2e7c3381267..2727f3345795 100644
--- a/sound/pci/mixart/mixart_mixer.c
+++ b/sound/pci/mixart/mixart_mixer.c
@@ -1114,10 +1114,12 @@ int snd_mixart_create_mixer(struct mixart_mgr *mgr)
temp = mixart_control_analog_level;
temp.name = "Master Playback Volume";
temp.private_value = 0; /* playback */
- if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip));
+ if (err < 0)
return err;
/* output mute controls */
- if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&mixart_control_output_switch, chip))) < 0)
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&mixart_control_output_switch, chip));
+ if (err < 0)
return err;
/* analog input level control only on first two chips !*/
@@ -1125,7 +1127,8 @@ int snd_mixart_create_mixer(struct mixart_mgr *mgr)
temp = mixart_control_analog_level;
temp.name = "Master Capture Volume";
temp.private_value = 1; /* capture */
- if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip));
+ if (err < 0)
return err;
}
@@ -1133,45 +1136,53 @@ int snd_mixart_create_mixer(struct mixart_mgr *mgr)
temp.name = "PCM Playback Volume";
temp.count = MIXART_PLAYBACK_STREAMS;
temp.private_value = 0; /* playback analog */
- if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip));
+ if (err < 0)
return err;
temp.name = "PCM Capture Volume";
temp.count = 1;
temp.private_value = MIXART_VOL_REC_MASK; /* capture analog */
- if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip));
+ if (err < 0)
return err;
if(mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
temp.name = "AES Playback Volume";
temp.count = MIXART_PLAYBACK_STREAMS;
temp.private_value = MIXART_VOL_AES_MASK; /* playback AES/EBU */
- if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip));
+ if (err < 0)
return err;
temp.name = "AES Capture Volume";
temp.count = 0;
temp.private_value = MIXART_VOL_REC_MASK | MIXART_VOL_AES_MASK; /* capture AES/EBU */
- if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip));
+ if (err < 0)
return err;
}
temp = mixart_control_pcm_switch;
temp.name = "PCM Playback Switch";
temp.private_value = 0; /* playback analog */
- if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip));
+ if (err < 0)
return err;
if(mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
temp.name = "AES Playback Switch";
temp.private_value = MIXART_VOL_AES_MASK; /* playback AES/EBU */
- if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip));
+ if (err < 0)
return err;
}
/* monitoring */
- if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&mixart_control_monitor_vol, chip))) < 0)
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&mixart_control_monitor_vol, chip));
+ if (err < 0)
return err;
- if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&mixart_control_monitor_sw, chip))) < 0)
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&mixart_control_monitor_sw, chip));
+ if (err < 0)
return err;
/* init all mixer data and program the master volumes/switches */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.