ALSA: sscape: coding style fixes

Fix coding style errors in the driver.

Also, add missing argument for CMD_XXX_MIDI_VOL command.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 83 insertions, 86 deletions

diff --git a/sound/isa/sscape.c b/sound/isa/sscape.c
index 579a59b9e470..e2d5d2d3ed96 100644
--- a/sound/isa/sscape.c
+++ b/sound/isa/sscape.c
@@ -109,14 +109,14 @@ MODULE_DEVICE_TABLE(pnp_card, sscape_pnpids);
 #define RX_READY 0x01
 #define TX_READY 0x02
 
-#define CMD_ACK           0x80
-#define CMD_SET_MIDI_VOL  0x84
-#define CMD_GET_MIDI_VOL  0x85
-#define CMD_XXX_MIDI_VOL  0x86
-#define CMD_SET_EXTMIDI   0x8a
-#define CMD_GET_EXTMIDI   0x8b
-#define CMD_SET_MT32      0x8c
-#define CMD_GET_MT32      0x8d
+#define CMD_ACK                 0x80
+#define CMD_SET_MIDI_VOL        0x84
+#define CMD_GET_MIDI_VOL        0x85
+#define CMD_XXX_MIDI_VOL        0x86
+#define CMD_SET_EXTMIDI         0x8a
+#define CMD_GET_EXTMIDI         0x8b
+#define CMD_SET_MT32            0x8c
+#define CMD_GET_MT32            0x8d
 
 enum GA_REG {
         GA_INTSTAT_REG = 0,
@@ -166,10 +166,12 @@ static inline struct soundscape *get_card_soundscape(struct snd_card *c)
  * I think this means that the memory has to map to
  * contiguous pages of physical memory.
  */
-static struct snd_dma_buffer *get_dmabuf(struct snd_dma_buffer *buf, unsigned long size)
+static struct snd_dma_buffer *get_dmabuf(struct snd_dma_buffer *buf,
+                                         unsigned long size)
 {
         if (buf) {
-                if (snd_dma_alloc_pages_fallback(SNDRV_DMA_TYPE_DEV, snd_dma_isa_data(),
+                if (snd_dma_alloc_pages_fallback(SNDRV_DMA_TYPE_DEV,
+                                                 snd_dma_isa_data(),
                                                  size, buf) < 0) {
                         snd_printk(KERN_ERR "sscape: Failed to allocate "
                                             "%lu bytes for DMA\n",
@@ -190,13 +192,13 @@ static void free_dmabuf(struct snd_dma_buffer *buf)
                 snd_dma_free_pages(buf);
 }
 
-
 /*
  * This function writes to the SoundScape's control registers,
  * but doesn't do any locking. It's up to the caller to do that.
  * This is why this function is "unsafe" ...
  */
-static inline void sscape_write_unsafe(unsigned io_base, enum GA_REG reg, unsigned char val)
+static inline void sscape_write_unsafe(unsigned io_base, enum GA_REG reg,
+                                       unsigned char val)
 {
         outb(reg, ODIE_ADDR_IO(io_base));
         outb(val, ODIE_DATA_IO(io_base));
@@ -206,7 +208,8 @@ static inline void sscape_write_unsafe(unsigned io_base, enum GA_REG reg, unsign
  * Write to the SoundScape's control registers, and do the
  * necessary locking ...
  */
-static void sscape_write(struct soundscape *s, enum GA_REG reg, unsigned char val)
+static void sscape_write(struct soundscape *s, enum GA_REG reg,
+                         unsigned char val)
 {
         unsigned long flags;
 
@@ -219,7 +222,8 @@ static void sscape_write(struct soundscape *s, enum GA_REG reg, unsigned char va
  * Read from the SoundScape's control registers, but leave any
  * locking to the caller. This is why the function is "unsafe" ...
  */
-static inline unsigned char sscape_read_unsafe(unsigned io_base, enum GA_REG reg)
+static inline unsigned char sscape_read_unsafe(unsigned io_base,
+                                               enum GA_REG reg)
 {
         outb(reg, ODIE_ADDR_IO(io_base));
         return inb(ODIE_DATA_IO(io_base));
@@ -248,9 +252,8 @@ static inline void set_midi_mode_unsafe(unsigned io_base)
 static inline int host_read_unsafe(unsigned io_base)
 {
         int data = -1;
-        if ((inb(HOST_CTRL_IO(io_base)) & RX_READY) != 0) {
+        if ((inb(HOST_CTRL_IO(io_base)) & RX_READY) != 0)
                 data = inb(HOST_DATA_IO(io_base));
-        }
 
         return data;
 }
@@ -292,7 +295,7 @@ static inline int host_write_unsafe(unsigned io_base, unsigned char data)
  * Also leaves all locking-issues to the caller ...
  */
 static int host_write_ctrl_unsafe(unsigned io_base, unsigned char data,
-                                  unsigned timeout)
+                                  unsigned timeout)
 {
         int err;
 
@@ -311,7 +314,7 @@ static int host_write_ctrl_unsafe(unsigned io_base, unsigned char data,
  *
  * NOTE: This check is based upon observation, not documentation.
  */
-static inline int verify_mpu401(const struct snd_mpu401 * mpu)
+static inline int verify_mpu401(const struct snd_mpu401 *mpu)
 {
         return ((inb(MPU401C(mpu)) & 0xc0) == 0x80);
 }
@@ -319,7 +322,7 @@ static inline int verify_mpu401(const struct snd_mpu401 * mpu)
 /*
  * This is apparently the standard way to initailise an MPU-401
  */
-static inline void initialise_mpu401(const struct snd_mpu401 * mpu)
+static inline void initialise_mpu401(const struct snd_mpu401 *mpu)
 {
         outb(0, MPU401D(mpu));
 }
@@ -329,9 +332,10 @@ static inline void initialise_mpu401(const struct snd_mpu401 * mpu)
  * The AD1845 detection fails if we *don't* do this, so I
  * think that this is a good idea ...
  */
-static inline void activate_ad1845_unsafe(unsigned io_base)
+static void activate_ad1845_unsafe(unsigned io_base)
 {
-        sscape_write_unsafe(io_base, GA_HMCTL_REG, (sscape_read_unsafe(io_base, GA_HMCTL_REG) & 0xcf) | 0x10);
+        unsigned char val = sscape_read_unsafe(io_base, GA_HMCTL_REG);
+        sscape_write_unsafe(io_base, GA_HMCTL_REG, (val & 0xcf) | 0x10);
         sscape_write_unsafe(io_base, GA_CDCFG_REG, 0x80);
 }
 
@@ -350,24 +354,27 @@ static void soundscape_free(struct snd_card *c)
  * Tell the SoundScape to begin a DMA tranfer using the given channel.
  * All locking issues are left to the caller.
  */
-static inline void sscape_start_dma_unsafe(unsigned io_base, enum GA_REG reg)
+static void sscape_start_dma_unsafe(unsigned io_base, enum GA_REG reg)
 {
-        sscape_write_unsafe(io_base, reg, sscape_read_unsafe(io_base, reg) | 0x01);
-        sscape_write_unsafe(io_base, reg, sscape_read_unsafe(io_base, reg) & 0xfe);
+        sscape_write_unsafe(io_base, reg,
+                            sscape_read_unsafe(io_base, reg) | 0x01);
+        sscape_write_unsafe(io_base, reg,
+                            sscape_read_unsafe(io_base, reg) & 0xfe);
 }
 
 /*
  * Wait for a DMA transfer to complete. This is a "limited busy-wait",
  * and all locking issues are left to the caller.
  */
-static int sscape_wait_dma_unsafe(unsigned io_base, enum GA_REG reg, unsigned timeout)
+static int sscape_wait_dma_unsafe(unsigned io_base, enum GA_REG reg,
+                                  unsigned timeout)
 {
         while (!(sscape_read_unsafe(io_base, reg) & 0x01) && (timeout != 0)) {
                 udelay(100);
                 --timeout;
         } /* while */
 
-        return (sscape_read_unsafe(io_base, reg) & 0x01);
+        return sscape_read_unsafe(io_base, reg) & 0x01;
 }
 
 /*
@@ -427,13 +434,13 @@ static int host_startup_ack(struct soundscape *s, unsigned timeout)
 /*
  * Upload a byte-stream into the SoundScape using DMA channel A.
  */
-static int upload_dma_data(struct soundscape *s,
-                           const unsigned char *data,
-                           size_t size)
+static int upload_dma_data(struct soundscape *s, const unsigned char *data,
+                           size_t size)
 {
         unsigned long flags;
         struct snd_dma_buffer dma;
         int ret;
+        unsigned char val;
 
         if (!get_dmabuf(&dma, PAGE_ALIGN(32 * 1024)))
                 return -ENOMEM;
@@ -443,18 +450,21 @@ static int upload_dma_data(struct soundscape *s,
         /*
          * Reset the board ...
          */
-        sscape_write_unsafe(s->io_base, GA_HMCTL_REG, sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f);
+        val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
+        sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val & 0x3f);
 
         /*
          * Enable the DMA channels and configure them ...
          */
-        sscape_write_unsafe(s->io_base, GA_DMAA_REG, (s->chip->dma1 << 4) | DMA_8BIT);
+        val = (s->chip->dma1 << 4) | DMA_8BIT;
+        sscape_write_unsafe(s->io_base, GA_DMAA_REG, val);
         sscape_write_unsafe(s->io_base, GA_DMAB_REG, 0x20);
 
         /*
          * Take the board out of reset ...
          */
-        sscape_write_unsafe(s->io_base, GA_HMCTL_REG, sscape_read_unsafe(s->io_base, GA_HMCTL_REG) | 0x80);
+        val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
+        sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val | 0x80);
 
         /*
          * Upload the firmware to the SoundScape
@@ -472,7 +482,7 @@ static int upload_dma_data(struct soundscape *s,
                 sscape_start_dma_unsafe(s->io_base, GA_DMAA_REG);
                 if (!sscape_wait_dma_unsafe(s->io_base, GA_DMAA_REG, 5000)) {
                         /*
-                         * Don't forget to release this spinlock we're holding ...
+                         * Don't forget to release this spinlock we're holding
                          */
                         spin_unlock_irqrestore(&s->lock, flags);
 
@@ -489,7 +499,8 @@ static int upload_dma_data(struct soundscape *s,
         /*
          * Boot the board ... (I think)
          */
-        sscape_write_unsafe(s->io_base, GA_HMCTL_REG, sscape_read_unsafe(s->io_base, GA_HMCTL_REG) | 0x40);
+        val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
+        sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val | 0x40);
         spin_unlock_irqrestore(&s->lock, flags);
 
         /*
@@ -591,7 +602,7 @@ static int sscape_upload_microcode(struct snd_card *card, int version)
  * Mixer control for the SoundScape's MIDI device.
  */
 static int sscape_midi_info(struct snd_kcontrol *ctl,
-                            struct snd_ctl_elem_info *uinfo)
+                            struct snd_ctl_elem_info *uinfo)
 {
         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
         uinfo->count = 1;
@@ -601,7 +612,7 @@ static int sscape_midi_info(struct snd_kcontrol *ctl,
 }
 
 static int sscape_midi_get(struct snd_kcontrol *kctl,
-                           struct snd_ctl_elem_value *uctl)
+                           struct snd_ctl_elem_value *uctl)
 {
         struct snd_wss *chip = snd_kcontrol_chip(kctl);
         struct snd_card *card = chip->card;
@@ -615,16 +626,18 @@ static int sscape_midi_get(struct snd_kcontrol *kctl,
 }
 
 static int sscape_midi_put(struct snd_kcontrol *kctl,
-                           struct snd_ctl_elem_value *uctl)
+                           struct snd_ctl_elem_value *uctl)
 {
         struct snd_wss *chip = snd_kcontrol_chip(kctl);
         struct snd_card *card = chip->card;
-        register struct soundscape *s = get_card_soundscape(card);
+        struct soundscape *s = get_card_soundscape(card);
         unsigned long flags;
         int change;
+        unsigned char new_val;
 
         spin_lock_irqsave(&s->lock, flags);
 
+        new_val = uctl->value.integer.value[0] & 127;
         /*
          * We need to put the board into HOST mode before we
          * can send any volume-changing HOST commands ...
@@ -637,15 +650,16 @@ static int sscape_midi_put(struct snd_kcontrol *kctl,
          * and then perform another volume-related command. Perhaps the
          * first command is an "open" and the second command is a "close"?
          */
-        if (s->midi_vol == ((unsigned char) uctl->value.integer. value[0] & 127)) {
+        if (s->midi_vol == new_val) {
                 change = 0;
                 goto __skip_change;
         }
-        change = (host_write_ctrl_unsafe(s->io_base, CMD_SET_MIDI_VOL, 100)
-                  && host_write_ctrl_unsafe(s->io_base, ((unsigned char) uctl->value.integer. value[0]) & 127, 100)
-                  && host_write_ctrl_unsafe(s->io_base, CMD_XXX_MIDI_VOL, 100));
-        s->midi_vol = (unsigned char) uctl->value.integer.value[0] & 127;
-      __skip_change:
+        change = host_write_ctrl_unsafe(s->io_base, CMD_SET_MIDI_VOL, 100)
+                 && host_write_ctrl_unsafe(s->io_base, new_val, 100)
+                 && host_write_ctrl_unsafe(s->io_base, CMD_XXX_MIDI_VOL, 100)
+                 && host_write_ctrl_unsafe(s->io_base, new_val, 100);
+        s->midi_vol = new_val;
+__skip_change:
 
         /*
          * Take the board out of HOST mode and back into MIDI mode ...
@@ -738,7 +752,7 @@ static int __devinit detect_sscape(struct soundscape *s, long wss_io)
         if (s->type == SSCAPE_VIVO)
                 wss_io += 4;
 
-        d  = sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f;
+        d  = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d | 0xc0);
 
         /* wait for WSS codec */
@@ -762,7 +776,7 @@ static int __devinit detect_sscape(struct soundscape *s, long wss_io)
         if ((inb(wss_io) & 0x80) != 0)
                 s->type = MEDIA_FX;
 
-        d = sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f;
+        d = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d | 0xc0);
         /* wait for WSS codec */
         for (d = 0; d < 500; d++) {
@@ -778,7 +792,7 @@ static int __devinit detect_sscape(struct soundscape *s, long wss_io)
          */
         retval = 1;
 
-        _done:
+_done:
         spin_unlock_irqrestore(&s->lock, flags);
         return retval;
 }
@@ -789,7 +803,7 @@ static int __devinit detect_sscape(struct soundscape *s, long wss_io)
  * to crash the machine. Also check that someone isn't using the hardware
  * IOCTL device.
  */
-static int mpu401_open(struct snd_mpu401 * mpu)
+static int mpu401_open(struct snd_mpu401 *mpu)
 {
         if (!verify_mpu401(mpu)) {
                 snd_printk(KERN_ERR "sscape: MIDI disabled, "
@@ -803,18 +817,18 @@ static int mpu401_open(struct snd_mpu401 * mpu)
 /*
  * Initialse an MPU-401 subdevice for MIDI support on the SoundScape.
  */
-static int __devinit create_mpu401(struct snd_card *card, int devnum, unsigned long port, int irq)
+static int __devinit create_mpu401(struct snd_card *card, int devnum,
+                                   unsigned long port, int irq)
 {
         struct soundscape *sscape = get_card_soundscape(card);
         struct snd_rawmidi *rawmidi;
         int err;
 
-        if ((err = snd_mpu401_uart_new(card, devnum,
-                                       MPU401_HW_MPU401,
-                                       port, MPU401_INFO_INTEGRATED,
-                                       irq, IRQF_DISABLED,
-                                       &rawmidi)) == 0) {
-                struct snd_mpu401 *mpu = (struct snd_mpu401 *) rawmidi->private_data;
+        err = snd_mpu401_uart_new(card, devnum, MPU401_HW_MPU401, port,
+                                  MPU401_INFO_INTEGRATED, irq, IRQF_DISABLED,
+                                  &rawmidi);
+        if (err == 0) {
+                struct snd_mpu401 *mpu = rawmidi->private_data;
                 mpu->open_input = mpu401_open;
                 mpu->open_output = mpu401_open;
                 mpu->private_data = sscape;
@@ -866,19 +880,6 @@ static int __devinit create_ad1845(struct snd_card *card, unsigned port,
                 unsigned long flags;
                 struct snd_pcm *pcm;
 
-/*
- * It turns out that the PLAYBACK_ENABLE bit is set
- * by the lowlevel driver ...
- *
-#define AD1845_IFACE_CONFIG  \
-           (CS4231_AUTOCALIB | CS4231_RECORD_ENABLE | CS4231_PLAYBACK_ENABLE)
-    snd_wss_mce_up(chip);
-    spin_lock_irqsave(&chip->reg_lock, flags);
-    snd_wss_out(chip, CS4231_IFACE_CTRL, AD1845_IFACE_CONFIG);
-    spin_unlock_irqrestore(&chip->reg_lock, flags);
-    snd_wss_mce_down(chip);
- */
-
                 if (sscape->type != SSCAPE_VIVO) {
                         /*
                          * The input clock frequency on the SoundScape must
@@ -928,7 +929,7 @@ static int __devinit create_ad1845(struct snd_card *card, unsigned port,
                 sscape->chip = chip;
         }
 
-        _error:
+_error:
         return err;
 }
 
@@ -1034,7 +1035,6 @@ static int __devinit create_sscape(int dev, struct snd_card *card)
          */
         spin_lock_irqsave(&sscape->lock, flags);
 
-        sscape_write_unsafe(sscape->io_base, GA_INTENA_REG, 0x00); /* disable */
         sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2e);
         sscape_write_unsafe(sscape->io_base, GA_SMCFGB_REG, 0x00);
 
@@ -1055,6 +1055,10 @@ static int __devinit create_sscape(int dev, struct snd_card *card)
         sscape_write_unsafe(sscape->io_base,
                             GA_CDCFG_REG, 0x09 | DMA_8BIT
                             | (dma[dev] << 4) | (irq_cfg << 1));
+        /*
+         * Enable the master IRQ ...
+         */
+        sscape_write_unsafe(sscape->io_base, GA_INTENA_REG, 0x80);
 
         spin_unlock_irqrestore(&sscape->lock, flags);
 
@@ -1094,11 +1098,6 @@ static int __devinit create_sscape(int dev, struct snd_card *card)
                         }
 
                         /*
-                         * Enable the master IRQ ...
-                         */
-                        sscape_write(sscape, GA_INTENA_REG, 0x80);
-
-                        /*
                          * Initialize mixer
                          */
                         spin_lock_irqsave(&sscape->lock, flags);
@@ -1155,7 +1154,8 @@ static int __devinit snd_sscape_match(struct device *pdev, unsigned int i)
             mpu_irq[i] == SNDRV_AUTO_IRQ ||
             dma[i] == SNDRV_AUTO_DMA) {
                 printk(KERN_INFO
-                       "sscape: insufficient parameters, need IO, IRQ, MPU-IRQ and DMA\n");
+                       "sscape: insufficient parameters, "
+                       "need IO, IRQ, MPU-IRQ and DMA\n");
                 return 0;
         }
 
@@ -1183,7 +1183,8 @@ static int __devinit snd_sscape_probe(struct device *pdev, unsigned int dev)
         if (ret < 0)
                 goto _release_card;
 
-        if ((ret = snd_card_register(card)) < 0) {
+        ret = snd_card_register(card);
+        if (ret < 0) {
                 snd_printk(KERN_ERR "sscape: Failed to register sound card\n");
                 goto _release_card;
         }
@@ -1236,20 +1237,15 @@ static int __devinit sscape_pnp_detect(struct pnp_card_link *pcard,
          * Allow this function to fail *quietly* if all the ISA PnP
          * devices were configured using module parameters instead.
          */
-        if ((idx = get_next_autoindex(idx)) >= SNDRV_CARDS)
+        idx = get_next_autoindex(idx);
+        if (idx >= SNDRV_CARDS)
                 return -ENOSPC;
 
         /*
-         * We have found a candidate ISA PnP card. Now we
-         * have to check that it has the devices that we
-         * expect it to have.
-         */
-
-        /*
          * Check that we still have room for another sound card ...
          */
         dev = pnp_request_card_device(pcard, pid->devs[0].id, NULL);
-        if (! dev)
+        if (!dev)
                 return -ENODEV;
 
         if (!pnp_is_active(dev)) {
@@ -1298,7 +1294,8 @@ static int __devinit sscape_pnp_detect(struct pnp_card_link *pcard,
         if (ret < 0)
                 goto _release_card;
 
-        if ((ret = snd_card_register(card)) < 0) {
+        ret = snd_card_register(card);
+        if (ret < 0) {
                 snd_printk(KERN_ERR "sscape: Failed to register sound card\n");
                 goto _release_card;
         }