ALSA: fm801: introduce macros to access the hardware

It will help to maintain HW accessors and, for example, switch from the
direct I/O to MMIO which is more convenient for PCI devices.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index db18ccabadd6abb3914b9b1d70c314232fda92ac..5be910ca35c50912d6a9e740d48b47f2b3d5d689 100644 (file)
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -23,6 +23,7 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/io.h>
 #include <linux/pci.h>
 #include <linux/slab.h>
 #include <linux/module.h>
@@ -34,8 +35,6 @@
 #include <sound/opl3.h>
 #include <sound/initval.h>
 
-#include <asm/io.h>
-
 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
 #include <media/tea575x.h>
 #endif
@@ -80,7 +79,10 @@ MODULE_PARM_DESC(radio_nr, "Radio device numbers");
  *  Direct registers
  */
 
-#define FM801_REG(chip, reg)   (chip->port + FM801_##reg)
+#define fm801_writew(chip,reg,value)   outw((value), chip->port + FM801_##reg)
+#define fm801_readw(chip,reg)          inw(chip->port + FM801_##reg)
+
+#define fm801_writel(chip,reg,value)   outl((value), chip->port + FM801_##reg)
 
 #define FM801_PCM_VOL          0x00    /* PCM Output Volume */
 #define FM801_FM_VOL           0x02    /* FM Output Volume */
@@ -250,7 +252,7 @@ static void snd_fm801_codec_write(struct snd_ac97 *ac97,
         *  Wait until the codec interface is not ready..
         */
        for (idx = 0; idx < 100; idx++) {
-               if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
+               if (!(fm801_readw(chip, AC97_CMD) & FM801_AC97_BUSY))
                        goto ok1;
                udelay(10);
        }
@@ -259,13 +261,13 @@ static void snd_fm801_codec_write(struct snd_ac97 *ac97,
 
  ok1:
        /* write data and address */
-       outw(val, FM801_REG(chip, AC97_DATA));
-       outw(reg | (ac97->addr << FM801_AC97_ADDR_SHIFT), FM801_REG(chip, AC97_CMD));
+       fm801_writew(chip, AC97_DATA, val);
+       fm801_writew(chip, AC97_CMD, reg | (ac97->addr << FM801_AC97_ADDR_SHIFT));
        /*
         *  Wait until the write command is not completed..
          */
        for (idx = 0; idx < 1000; idx++) {
-               if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
+               if (!(fm801_readw(chip, AC97_CMD) & FM801_AC97_BUSY))
                        return;
                udelay(10);
        }
@@ -281,7 +283,7 @@ static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short
         *  Wait until the codec interface is not ready..
         */
        for (idx = 0; idx < 100; idx++) {
-               if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
+               if (!(fm801_readw(chip, AC97_CMD) & FM801_AC97_BUSY))
                        goto ok1;
                udelay(10);
        }
@@ -290,10 +292,10 @@ static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short
 
  ok1:
        /* read command */
-       outw(reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ,
-            FM801_REG(chip, AC97_CMD));
+       fm801_writew(chip, AC97_CMD,
+                    reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
        for (idx = 0; idx < 100; idx++) {
-               if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
+               if (!(fm801_readw(chip, AC97_CMD) & FM801_AC97_BUSY))
                        goto ok2;
                udelay(10);
        }
@@ -302,7 +304,7 @@ static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short
 
  ok2:
        for (idx = 0; idx < 1000; idx++) {
-               if (inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_VALID)
+               if (fm801_readw(chip, AC97_CMD) & FM801_AC97_VALID)
                        goto ok3;
                udelay(10);
        }
@@ -310,7 +312,7 @@ static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short
        return 0;
 
  ok3:
-       return inw(FM801_REG(chip, AC97_DATA));
+       return fm801_readw(chip, AC97_DATA);
 }
 
 static unsigned int rates[] = {
@@ -384,7 +386,7 @@ static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
                snd_BUG();
                return -EINVAL;
        }
-       outw(chip->ply_ctrl, FM801_REG(chip, PLY_CTRL));
+       fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
        spin_unlock(&chip->reg_lock);
        return 0;
 }
@@ -419,7 +421,7 @@ static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
                snd_BUG();
                return -EINVAL;
        }
-       outw(chip->cap_ctrl, FM801_REG(chip, CAP_CTRL));
+       fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
        spin_unlock(&chip->reg_lock);
        return 0;
 }
@@ -457,12 +459,13 @@ static int snd_fm801_playback_prepare(struct snd_pcm_substream *substream)
        }
        chip->ply_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
        chip->ply_buf = 0;
-       outw(chip->ply_ctrl, FM801_REG(chip, PLY_CTRL));
-       outw(chip->ply_count - 1, FM801_REG(chip, PLY_COUNT));
+       fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
+       fm801_writew(chip, PLY_COUNT, chip->ply_count - 1);
        chip->ply_buffer = runtime->dma_addr;
        chip->ply_pos = 0;
-       outl(chip->ply_buffer, FM801_REG(chip, PLY_BUF1));
-       outl(chip->ply_buffer + (chip->ply_count % chip->ply_size), FM801_REG(chip, PLY_BUF2));
+       fm801_writel(chip, PLY_BUF1, chip->ply_buffer);
+       fm801_writel(chip, PLY_BUF2,
+                    chip->ply_buffer + (chip->ply_count % chip->ply_size));
        spin_unlock_irq(&chip->reg_lock);
        return 0;
 }
@@ -483,12 +486,13 @@ static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
                chip->cap_ctrl |= FM801_STEREO;
        chip->cap_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
        chip->cap_buf = 0;
-       outw(chip->cap_ctrl, FM801_REG(chip, CAP_CTRL));
-       outw(chip->cap_count - 1, FM801_REG(chip, CAP_COUNT));
+       fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
+       fm801_writew(chip, CAP_COUNT, chip->cap_count - 1);
        chip->cap_buffer = runtime->dma_addr;
        chip->cap_pos = 0;
-       outl(chip->cap_buffer, FM801_REG(chip, CAP_BUF1));
-       outl(chip->cap_buffer + (chip->cap_count % chip->cap_size), FM801_REG(chip, CAP_BUF2));
+       fm801_writel(chip, CAP_BUF1, chip->cap_buffer);
+       fm801_writel(chip, CAP_BUF2,
+                    chip->cap_buffer + (chip->cap_count % chip->cap_size));
        spin_unlock_irq(&chip->reg_lock);
        return 0;
 }
@@ -501,8 +505,8 @@ static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *su
        if (!(chip->ply_ctrl & FM801_START))
                return 0;
        spin_lock(&chip->reg_lock);
-       ptr = chip->ply_pos + (chip->ply_count - 1) - inw(FM801_REG(chip, PLY_COUNT));
-       if (inw(FM801_REG(chip, IRQ_STATUS)) & FM801_IRQ_PLAYBACK) {
+       ptr = chip->ply_pos + (chip->ply_count - 1) - fm801_readw(chip, PLY_COUNT);
+       if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_PLAYBACK) {
                ptr += chip->ply_count;
                ptr %= chip->ply_size;
        }
@@ -518,8 +522,8 @@ static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *sub
        if (!(chip->cap_ctrl & FM801_START))
                return 0;
        spin_lock(&chip->reg_lock);
-       ptr = chip->cap_pos + (chip->cap_count - 1) - inw(FM801_REG(chip, CAP_COUNT));
-       if (inw(FM801_REG(chip, IRQ_STATUS)) & FM801_IRQ_CAPTURE) {
+       ptr = chip->cap_pos + (chip->cap_count - 1) - fm801_readw(chip, CAP_COUNT);
+       if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_CAPTURE) {
                ptr += chip->cap_count;
                ptr %= chip->cap_size;
        }
@@ -533,12 +537,12 @@ static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
        unsigned short status;
        unsigned int tmp;
 
-       status = inw(FM801_REG(chip, IRQ_STATUS));
+       status = fm801_readw(chip, IRQ_STATUS);
        status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
        if (! status)
                return IRQ_NONE;
        /* ack first */
-       outw(status, FM801_REG(chip, IRQ_STATUS));
+       fm801_writew(chip, IRQ_STATUS, status);
        if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
                spin_lock(&chip->reg_lock);
                chip->ply_buf++;
@@ -546,10 +550,10 @@ static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
                chip->ply_pos %= chip->ply_size;
                tmp = chip->ply_pos + chip->ply_count;
                tmp %= chip->ply_size;
-               outl(chip->ply_buffer + tmp,
-                               (chip->ply_buf & 1) ?
-                                       FM801_REG(chip, PLY_BUF1) :
-                                       FM801_REG(chip, PLY_BUF2));
+               if (chip->ply_buf & 1)
+                       fm801_writel(chip, PLY_BUF1, chip->ply_buffer + tmp);
+               else
+                       fm801_writel(chip, PLY_BUF2, chip->ply_buffer + tmp);
                spin_unlock(&chip->reg_lock);
                snd_pcm_period_elapsed(chip->playback_substream);
        }
@@ -560,10 +564,10 @@ static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
                chip->cap_pos %= chip->cap_size;
                tmp = chip->cap_pos + chip->cap_count;
                tmp %= chip->cap_size;
-               outl(chip->cap_buffer + tmp,
-                               (chip->cap_buf & 1) ?
-                                       FM801_REG(chip, CAP_BUF1) :
-                                       FM801_REG(chip, CAP_BUF2));
+               if (chip->cap_buf & 1)
+                       fm801_writel(chip, CAP_BUF1, chip->cap_buffer + tmp);
+               else
+                       fm801_writel(chip, CAP_BUF2, chip->cap_buffer + tmp);
                spin_unlock(&chip->reg_lock);
                snd_pcm_period_elapsed(chip->capture_substream);
        }
@@ -747,7 +751,7 @@ static struct snd_fm801_tea575x_gpio snd_fm801_tea575x_gpios[] = {
 static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
 {
        struct fm801 *chip = tea->private_data;
-       unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL));
+       unsigned short reg = fm801_readw(chip, GPIO_CTRL);
        struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 
        reg &= ~(FM801_GPIO_GP(gpio.data) |
@@ -759,13 +763,13 @@ static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
        /* WRITE_ENABLE is inverted */
        reg |= (pins & TEA575X_WREN) ? 0 : FM801_GPIO_GP(gpio.wren);
 
-       outw(reg, FM801_REG(chip, GPIO_CTRL));
+       fm801_writew(chip, GPIO_CTRL, reg);
 }
 
 static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
 {
        struct fm801 *chip = tea->private_data;
-       unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL));
+       unsigned short reg = fm801_readw(chip, GPIO_CTRL);
        struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
        u8 ret;
 
@@ -780,7 +784,7 @@ static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
 static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
 {
        struct fm801 *chip = tea->private_data;
-       unsigned short reg = inw(FM801_REG(chip, GPIO_CTRL));
+       unsigned short reg = fm801_readw(chip, GPIO_CTRL);
        struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 
        /* use GPIO lines and set write enable bit */
@@ -811,7 +815,7 @@ static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output
                         FM801_GPIO_GP(gpio.clk));
        }
 
-       outw(reg, FM801_REG(chip, GPIO_CTRL));
+       fm801_writew(chip, GPIO_CTRL, reg);
 }
 
 static struct snd_tea575x_ops snd_fm801_tea_ops = {
@@ -962,7 +966,7 @@ static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
        struct fm801 *chip = snd_kcontrol_chip(kcontrol);
         unsigned short val;
  
-       val = inw(FM801_REG(chip, REC_SRC)) & 7;
+       val = fm801_readw(chip, REC_SRC) & 7;
        if (val > 4)
                val = 4;
         ucontrol->value.enumerated.item[0] = val;
@@ -1073,12 +1077,12 @@ static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
 {
        unsigned long timeout = jiffies + waits;
 
-       outw(FM801_AC97_READ | (codec_id << FM801_AC97_ADDR_SHIFT) | reg,
-            FM801_REG(chip, AC97_CMD));
+       fm801_writew(chip, AC97_CMD,
+                    reg | (codec_id << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
        udelay(5);
        do {
-               if ((inw(FM801_REG(chip, AC97_CMD)) & (FM801_AC97_VALID|FM801_AC97_BUSY))
-                   == FM801_AC97_VALID)
+               if ((fm801_readw(chip, AC97_CMD) &
+                    (FM801_AC97_VALID | FM801_AC97_BUSY)) == FM801_AC97_VALID)
                        return 0;
                schedule_timeout_uninterruptible(1);
        } while (time_after(timeout, jiffies));
@@ -1093,10 +1097,10 @@ static int snd_fm801_chip_init(struct fm801 *chip, int resume)
                goto __ac97_ok;
 
        /* codec cold reset + AC'97 warm reset */
-       outw((1<<5) | (1<<6), FM801_REG(chip, CODEC_CTRL));
-       inw(FM801_REG(chip, CODEC_CTRL)); /* flush posting data */
+       fm801_writew(chip, CODEC_CTRL, (1 << 5) | (1 << 6));
+       fm801_readw(chip, CODEC_CTRL); /* flush posting data */
        udelay(100);
-       outw(0, FM801_REG(chip, CODEC_CTRL));
+       fm801_writew(chip, CODEC_CTRL, 0);
 
        if (wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750)) < 0)
                if (!resume) {
@@ -1117,7 +1121,7 @@ static int snd_fm801_chip_init(struct fm801 *chip, int resume)
                        for (i = 3; i > 0; i--) {
                                if (!wait_for_codec(chip, i, AC97_VENDOR_ID1,
                                                     msecs_to_jiffies(50))) {
-                                       cmdw = inw(FM801_REG(chip, AC97_DATA));
+                                       cmdw = fm801_readw(chip, AC97_DATA);
                                        if (cmdw != 0xffff && cmdw != 0) {
                                                chip->secondary = 1;
                                                chip->secondary_addr = i;
@@ -1135,23 +1139,24 @@ static int snd_fm801_chip_init(struct fm801 *chip, int resume)
       __ac97_ok:
 
        /* init volume */
-       outw(0x0808, FM801_REG(chip, PCM_VOL));
-       outw(0x9f1f, FM801_REG(chip, FM_VOL));
-       outw(0x8808, FM801_REG(chip, I2S_VOL));
+       fm801_writew(chip, PCM_VOL, 0x0808);
+       fm801_writew(chip, FM_VOL, 0x9f1f);
+       fm801_writew(chip, I2S_VOL, 0x8808);
 
        /* I2S control - I2S mode */
-       outw(0x0003, FM801_REG(chip, I2S_MODE));
+       fm801_writew(chip, I2S_MODE, 0x0003);
 
        /* interrupt setup */
-       cmdw = inw(FM801_REG(chip, IRQ_MASK));
+       cmdw = fm801_readw(chip, IRQ_MASK);
        if (chip->irq < 0)
                cmdw |= 0x00c3;         /* mask everything, no PCM nor MPU */
        else
                cmdw &= ~0x0083;        /* unmask MPU, PLAYBACK & CAPTURE */
-       outw(cmdw, FM801_REG(chip, IRQ_MASK));
+       fm801_writew(chip, IRQ_MASK, cmdw);
 
        /* interrupt clear */
-       outw(FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU, FM801_REG(chip, IRQ_STATUS));
+       fm801_writew(chip, IRQ_STATUS,
+                    FM801_IRQ_PLAYBACK | FM801_IRQ_CAPTURE | FM801_IRQ_MPU);
 
        return 0;
 }
@@ -1165,9 +1170,9 @@ static int snd_fm801_free(struct fm801 *chip)
                goto __end_hw;
 
        /* interrupt setup - mask everything */
-       cmdw = inw(FM801_REG(chip, IRQ_MASK));
+       cmdw = fm801_readw(chip, IRQ_MASK);
        cmdw |= 0x00c3;
-       outw(cmdw, FM801_REG(chip, IRQ_MASK));
+       fm801_writew(chip, IRQ_MASK, cmdw);
 
       __end_hw:
 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
@@ -1339,15 +1344,15 @@ static int snd_card_fm801_probe(struct pci_dev *pci,
                return err;
        }
        if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
-                                      FM801_REG(chip, MPU401_DATA),
+                                      chip->port + FM801_MPU401_DATA,
                                       MPU401_INFO_INTEGRATED |
                                       MPU401_INFO_IRQ_HOOK,
                                       -1, &chip->rmidi)) < 0) {
                snd_card_free(card);
                return err;
        }
-       if ((err = snd_opl3_create(card, FM801_REG(chip, OPL3_BANK0),
-                                  FM801_REG(chip, OPL3_BANK1),
+       if ((err = snd_opl3_create(card, chip->port + FM801_OPL3_BANK0,
+                                  chip->port + FM801_OPL3_BANK1,
                                   OPL3_HW_OPL3_FM801, 1, &opl3)) < 0) {
                snd_card_free(card);
                return err;