Smack: update for file capabilities
[linux-2.6.git] / sound / pci / es1968.c
index 021862d..25ccfce 100644 (file)
  *     places.
  */
 
-#include <sound/driver.h>
 #include <asm/io.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/init.h>
 #include <linux/pci.h>
+#include <linux/dma-mapping.h>
 #include <linux/slab.h>
 #include <linux/gameport.h>
 #include <linux/moduleparam.h>
+#include <linux/mutex.h>
+
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/mpu401.h>
@@ -129,7 +131,7 @@ static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;  /* Enable this card *
 static int total_bufsize[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1024 };
 static int pcm_substreams_p[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 4 };
 static int pcm_substreams_c[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1 };
-static int clock[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0};
+static int clock[SNDRV_CARDS];
 static int use_pm[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
 static int enable_mpu[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
 #ifdef SUPPORT_JOYSTICK
@@ -176,7 +178,7 @@ MODULE_PARM_DESC(joystick, "Enable joystick.");
 
 /* Values for the ESM_LEGACY_AUDIO_CONTROL */
 
-#define ESS_ENABLE_AUDIO       0x8000
+#define ESS_DISABLE_AUDIO      0x8000
 #define ESS_ENABLE_SERIAL_IRQ  0x4000
 #define IO_ADRESS_ALIAS                0x0020
 #define MPU401_IRQ_ENABLE      0x0010
@@ -195,7 +197,7 @@ MODULE_PARM_DESC(joystick, "Enable joystick.");
 #define DMA_TDMA               0x0100
 #define DMA_PCPCI              0x0200
 #define POST_WRITE             0x0080
-#define ISA_TIMING             0x0040
+#define PCI_TIMING             0x0040
 #define SWAP_LR                        0x0020
 #define SUBTR_DECODE           0x0002
 
@@ -429,46 +431,6 @@ MODULE_PARM_DESC(joystick, "Enable joystick.");
 #define ESM_MODE_PLAY          0
 #define ESM_MODE_CAPTURE       1
 
-/* acpi states */
-enum {
-       ACPI_D0=0,
-       ACPI_D1,
-       ACPI_D2,
-       ACPI_D3
-};
-
-/* bits in the acpi masks */
-#define ACPI_12MHZ     ( 1 << 15)
-#define ACPI_24MHZ     ( 1 << 14)
-#define ACPI_978       ( 1 << 13)
-#define ACPI_SPDIF     ( 1 << 12)
-#define ACPI_GLUE      ( 1 << 11)
-#define ACPI__10       ( 1 << 10) /* reserved */
-#define ACPI_PCIINT    ( 1 << 9)
-#define ACPI_HV                ( 1 << 8) /* hardware volume */
-#define ACPI_GPIO      ( 1 << 7)
-#define ACPI_ASSP      ( 1 << 6)
-#define ACPI_SB                ( 1 << 5) /* sb emul */
-#define ACPI_FM                ( 1 << 4) /* fm emul */
-#define ACPI_RB                ( 1 << 3) /* ringbus / aclink */
-#define ACPI_MIDI      ( 1 << 2) 
-#define ACPI_GP                ( 1 << 1) /* game port */
-#define ACPI_WP                ( 1 << 0) /* wave processor */
-
-#define ACPI_ALL       (0xffff)
-#define ACPI_SLEEP     (~(ACPI_SPDIF|ACPI_ASSP|ACPI_SB|ACPI_FM| \
-                       ACPI_MIDI|ACPI_GP|ACPI_WP))
-#define ACPI_NONE      (ACPI__10)
-
-/* these masks indicate which units we care about at
-       which states */
-static u16 acpi_state_mask[] = {
-       [ACPI_D0] = ACPI_ALL,
-       [ACPI_D1] = ACPI_SLEEP,
-       [ACPI_D2] = ACPI_SLEEP,
-       [ACPI_D3] = ACPI_NONE
-};
-
 
 /* APU use in the driver */
 enum snd_enum_apu_type {
@@ -569,7 +531,7 @@ struct es1968 {
        u16 maestro_map[32];
        int bobclient;          /* active timer instancs */
        int bob_freq;           /* timer frequency */
-       struct semaphore memory_mutex;  /* memory lock */
+       struct mutex memory_mutex;      /* memory lock */
 
        /* APU states */
        unsigned char apu[NR_APUS];
@@ -587,7 +549,7 @@ struct es1968 {
 #endif
 };
 
-static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id);
 
 static struct pci_device_id snd_es1968_ids[] = {
        /* Maestro 1 */
@@ -727,7 +689,7 @@ static void __apu_set_register(struct es1968 *chip, u16 channel, u8 reg, u16 dat
        apu_data_set(chip, data);
 }
 
-static inline void apu_set_register(struct es1968 *chip, u16 channel, u8 reg, u16 data)
+static void apu_set_register(struct es1968 *chip, u16 channel, u8 reg, u16 data)
 {
        unsigned long flags;
        spin_lock_irqsave(&chip->reg_lock, flags);
@@ -743,7 +705,7 @@ static u16 __apu_get_register(struct es1968 *chip, u16 channel, u8 reg)
        return __maestro_read(chip, IDR0_DATA_PORT);
 }
 
-static inline u16 apu_get_register(struct es1968 *chip, u16 channel, u8 reg)
+static u16 apu_get_register(struct es1968 *chip, u16 channel, u8 reg)
 {
        unsigned long flags;
        u16 v;
@@ -880,10 +842,9 @@ static void snd_es1968_bob_dec(struct es1968 *chip)
                snd_es1968_bob_stop(chip);
        else if (chip->bob_freq > ESM_BOB_FREQ) {
                /* check reduction of timer frequency */
-               struct list_head *p;
                int max_freq = ESM_BOB_FREQ;
-               list_for_each(p, &chip->substream_list) {
-                       struct esschan *es = list_entry(p, struct esschan, list);
+               struct esschan *es;
+               list_for_each_entry(es, &chip->substream_list, list) {
                        if (max_freq < es->bob_freq)
                                max_freq = es->bob_freq;
                }
@@ -1353,16 +1314,15 @@ static struct snd_pcm_hardware snd_es1968_capture = {
 
 static int calc_available_memory_size(struct es1968 *chip)
 {
-       struct list_head *p;
        int max_size = 0;
-       
-       down(&chip->memory_mutex);
-       list_for_each(p, &chip->buf_list) {
-               struct esm_memory *buf = list_entry(p, struct esm_memory, list);
+       struct esm_memory *buf;
+
+       mutex_lock(&chip->memory_mutex);
+       list_for_each_entry(buf, &chip->buf_list, list) {
                if (buf->empty && buf->buf.bytes > max_size)
                        max_size = buf->buf.bytes;
        }
-       up(&chip->memory_mutex);
+       mutex_unlock(&chip->memory_mutex);
        if (max_size >= 128*1024)
                max_size = 127*1024;
        return max_size;
@@ -1372,23 +1332,21 @@ static int calc_available_memory_size(struct es1968 *chip)
 static struct esm_memory *snd_es1968_new_memory(struct es1968 *chip, int size)
 {
        struct esm_memory *buf;
-       struct list_head *p;
-       
-       size = ((size + ESM_MEM_ALIGN - 1) / ESM_MEM_ALIGN) * ESM_MEM_ALIGN;
-       down(&chip->memory_mutex);
-       list_for_each(p, &chip->buf_list) {
-               buf = list_entry(p, struct esm_memory, list);
+
+       size = ALIGN(size, ESM_MEM_ALIGN);
+       mutex_lock(&chip->memory_mutex);
+       list_for_each_entry(buf, &chip->buf_list, list) {
                if (buf->empty && buf->buf.bytes >= size)
                        goto __found;
        }
-       up(&chip->memory_mutex);
+       mutex_unlock(&chip->memory_mutex);
        return NULL;
 
 __found:
        if (buf->buf.bytes > size) {
                struct esm_memory *chunk = kmalloc(sizeof(*chunk), GFP_KERNEL);
                if (chunk == NULL) {
-                       up(&chip->memory_mutex);
+                       mutex_unlock(&chip->memory_mutex);
                        return NULL;
                }
                chunk->buf = buf->buf;
@@ -1400,7 +1358,7 @@ __found:
                list_add(&chunk->list, &buf->list);
        }
        buf->empty = 0;
-       up(&chip->memory_mutex);
+       mutex_unlock(&chip->memory_mutex);
        return buf;
 }
 
@@ -1409,7 +1367,7 @@ static void snd_es1968_free_memory(struct es1968 *chip, struct esm_memory *buf)
 {
        struct esm_memory *chunk;
 
-       down(&chip->memory_mutex);
+       mutex_lock(&chip->memory_mutex);
        buf->empty = 1;
        if (buf->list.prev != &chip->buf_list) {
                chunk = list_entry(buf->list.prev, struct esm_memory, list);
@@ -1428,7 +1386,7 @@ static void snd_es1968_free_memory(struct es1968 *chip, struct esm_memory *buf)
                        kfree(chunk);
                }
        }
-       up(&chip->memory_mutex);
+       mutex_unlock(&chip->memory_mutex);
 }
 
 static void snd_es1968_free_dmabuf(struct es1968 *chip)
@@ -1591,10 +1549,7 @@ static int snd_es1968_playback_open(struct snd_pcm_substream *substream)
        runtime->hw = snd_es1968_playback;
        runtime->hw.buffer_bytes_max = runtime->hw.period_bytes_max =
                calc_available_memory_size(chip);
-#if 0
-       snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
-                                  1024);
-#endif
+
        spin_lock_irq(&chip->substream_lock);
        list_add(&es->list, &chip->substream_list);
        spin_unlock_irq(&chip->substream_lock);
@@ -1650,10 +1605,8 @@ static int snd_es1968_capture_open(struct snd_pcm_substream *substream)
        runtime->hw = snd_es1968_capture;
        runtime->hw.buffer_bytes_max = runtime->hw.period_bytes_max =
                calc_available_memory_size(chip) - 1024; /* keep MIXBUF size */
-#if 0
-       snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
-                                  1024);
-#endif
+       snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
+
        spin_lock_irq(&chip->substream_lock);
        list_add(&es->list, &chip->substream_list);
        spin_unlock_irq(&chip->substream_lock);
@@ -1902,7 +1855,7 @@ static void es1968_update_hw_volume(unsigned long private_data)
        /* Figure out which volume control button was pushed,
           based on differences from the default register
           values. */
-       x = inb(chip->io_port + 0x1c);
+       x = inb(chip->io_port + 0x1c) & 0xee;
        /* Reset the volume control registers. */
        outb(0x88, chip->io_port + 0x1c);
        outb(0x88, chip->io_port + 0x1d);
@@ -1918,7 +1871,8 @@ static void es1968_update_hw_volume(unsigned long private_data)
        /* FIXME: we can't call snd_ac97_* functions since here is in tasklet. */
        spin_lock_irqsave(&chip->ac97_lock, flags);
        val = chip->ac97->regs[AC97_MASTER];
-       if (x & 1) {
+       switch (x) {
+       case 0x88:
                /* mute */
                val ^= 0x8000;
                chip->ac97->regs[AC97_MASTER] = val;
@@ -1926,26 +1880,31 @@ static void es1968_update_hw_volume(unsigned long private_data)
                outb(AC97_MASTER, chip->io_port + ESM_AC97_INDEX);
                snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
                               &chip->master_switch->id);
-       } else {
-               val &= 0x7fff;
-               if (((x>>1) & 7) > 4) {
-                       /* volume up */
-                       if ((val & 0xff) > 0)
-                               val--;
-                       if ((val & 0xff00) > 0)
-                               val -= 0x0100;
-               } else {
-                       /* volume down */
-                       if ((val & 0xff) < 0x1f)
-                               val++;
-                       if ((val & 0xff00) < 0x1f00)
-                               val += 0x0100;
-               }
+               break;
+       case 0xaa:
+               /* volume up */
+               if ((val & 0x7f) > 0)
+                       val--;
+               if ((val & 0x7f00) > 0)
+                       val -= 0x0100;
                chip->ac97->regs[AC97_MASTER] = val;
                outw(val, chip->io_port + ESM_AC97_DATA);
                outb(AC97_MASTER, chip->io_port + ESM_AC97_INDEX);
                snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
                               &chip->master_volume->id);
+               break;
+       case 0x66:
+               /* volume down */
+               if ((val & 0x7f) < 0x1f)
+                       val++;
+               if ((val & 0x7f00) < 0x1f00)
+                       val += 0x0100;
+               chip->ac97->regs[AC97_MASTER] = val;
+               outw(val, chip->io_port + ESM_AC97_DATA);
+               outb(AC97_MASTER, chip->io_port + ESM_AC97_INDEX);
+               snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
+                              &chip->master_volume->id);
+               break;
        }
        spin_unlock_irqrestore(&chip->ac97_lock, flags);
 }
@@ -1953,7 +1912,7 @@ static void es1968_update_hw_volume(unsigned long private_data)
 /*
  * interrupt handler
  */
-static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id)
 {
        struct es1968 *chip = dev_id;
        u32 event;
@@ -1970,14 +1929,13 @@ static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id, struct pt_regs *r
        outb(0xFF, chip->io_port + 0x1A);
 
        if ((event & ESM_MPU401_IRQ) && chip->rmidi) {
-               snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
+               snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
        }
 
        if (event & ESM_SOUND_IRQ) {
-               struct list_head *p;
+               struct esschan *es;
                spin_lock(&chip->substream_lock);
-               list_for_each(p, &chip->substream_list) {
-                       struct esschan *es = list_entry(p, struct esschan, list);
+               list_for_each_entry(es, &chip->substream_list, list) {
                        if (es->running)
                                snd_es1968_update_pcm(chip, es);
                }
@@ -2151,21 +2109,6 @@ static void snd_es1968_reset(struct es1968 *chip)
 }
 
 /*
- * power management
- */
-static void snd_es1968_set_acpi(struct es1968 *chip, int state)
-{
-       u16 active_mask = acpi_state_mask[state];
-
-       pci_set_power_state(chip->pci, state);
-       /* make sure the units we care about are on 
-               XXX we might want to do this before state flipping? */
-       pci_write_config_word(chip->pci, 0x54, ~ active_mask);
-       pci_write_config_word(chip->pci, 0x56, ~ active_mask);
-}
-
-
-/*
  * initialize maestro chip
  */
 static void snd_es1968_chip_init(struct es1968 *chip)
@@ -2187,20 +2130,14 @@ static void snd_es1968_chip_init(struct es1968 *chip)
         * IRQs.
         */
        
-       /* do config work at full power */
-       snd_es1968_set_acpi(chip, ACPI_D0);
-
        /* Config Reg A */
        pci_read_config_word(pci, ESM_CONFIG_A, &w);
 
-       /*      Use TDMA for now. TDMA works on all boards, so while its
-        *      not the most efficient its the simplest. */
        w &= ~DMA_CLEAR;        /* Clear DMA bits */
-       w |= DMA_TDMA;          /* TDMA on */
        w &= ~(PIC_SNOOP1 | PIC_SNOOP2);        /* Clear Pic Snoop Mode Bits */
        w &= ~SAFEGUARD;        /* Safeguard off */
        w |= POST_WRITE;        /* Posted write */
-       w |= ISA_TIMING;        /* ISA timing on */
+       w |= PCI_TIMING;        /* PCI timing on */
        /* XXX huh?  claims to be reserved.. */
        w &= ~SWAP_LR;          /* swap left/right 
                                   seems to only have effect on SB
@@ -2241,7 +2178,7 @@ static void snd_es1968_chip_init(struct es1968 *chip)
 
        pci_read_config_word(pci, ESM_LEGACY_AUDIO_CONTROL, &w);
 
-       w &= ~ESS_ENABLE_AUDIO; /* Disable Legacy Audio */
+       w |= ESS_DISABLE_AUDIO; /* Disable Legacy Audio */
        w &= ~ESS_ENABLE_SERIAL_IRQ;    /* Disable SIRQ */
        w &= ~(0x1f);           /* disable mpu irq/io, game port, fm, SB */
 
@@ -2378,33 +2315,46 @@ static void snd_es1968_start_irq(struct es1968 *chip)
 /*
  * PM support
  */
-static int es1968_suspend(struct snd_card *card, pm_message_t state)
+static int es1968_suspend(struct pci_dev *pci, pm_message_t state)
 {
-       struct es1968 *chip = card->pm_private_data;
+       struct snd_card *card = pci_get_drvdata(pci);
+       struct es1968 *chip = card->private_data;
 
        if (! chip->do_pm)
                return 0;
 
        chip->in_suspend = 1;
+       snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
        snd_pcm_suspend_all(chip->pcm);
        snd_ac97_suspend(chip->ac97);
        snd_es1968_bob_stop(chip);
-       snd_es1968_set_acpi(chip, ACPI_D3);
-       pci_disable_device(chip->pci);
+
+       pci_disable_device(pci);
+       pci_save_state(pci);
+       pci_set_power_state(pci, pci_choose_state(pci, state));
        return 0;
 }
 
-static int es1968_resume(struct snd_card *card)
+static int es1968_resume(struct pci_dev *pci)
 {
-       struct es1968 *chip = card->pm_private_data;
-       struct list_head *p;
+       struct snd_card *card = pci_get_drvdata(pci);
+       struct es1968 *chip = card->private_data;
+       struct esschan *es;
 
        if (! chip->do_pm)
                return 0;
 
        /* restore all our config */
-       pci_enable_device(chip->pci);
-       pci_set_master(chip->pci);
+       pci_set_power_state(pci, PCI_D0);
+       pci_restore_state(pci);
+       if (pci_enable_device(pci) < 0) {
+               printk(KERN_ERR "es1968: pci_enable_device failed, "
+                      "disabling device\n");
+               snd_card_disconnect(card);
+               return -EIO;
+       }
+       pci_set_master(pci);
+
        snd_es1968_chip_init(chip);
 
        /* need to restore the base pointers.. */ 
@@ -2418,8 +2368,7 @@ static int es1968_resume(struct snd_card *card)
        /* restore ac97 state */
        snd_ac97_resume(chip->ac97);
 
-       list_for_each(p, &chip->substream_list) {
-               struct esschan *es = list_entry(p, struct esschan, list);
+       list_for_each_entry(es, &chip->substream_list, list) {
                switch (es->mode) {
                case ESM_MODE_PLAY:
                        snd_es1968_playback_setup(chip, es, es->substream->runtime);
@@ -2434,6 +2383,7 @@ static int es1968_resume(struct snd_card *card)
        if (chip->bobclient)
                snd_es1968_bob_start(chip);
 
+       snd_power_change_state(card, SNDRV_CTL_POWER_D0);
        chip->in_suspend = 0;
        return 0;
 }
@@ -2500,9 +2450,8 @@ static int snd_es1968_free(struct es1968 *chip)
        }
 
        if (chip->irq >= 0)
-               free_irq(chip->irq, (void *)chip);
+               free_irq(chip->irq, chip);
        snd_es1968_free_gameport(chip);
-       snd_es1968_set_acpi(chip, ACPI_D3);
        chip->master_switch = NULL;
        chip->master_volume = NULL;
        pci_release_regions(chip->pci);
@@ -2556,8 +2505,8 @@ static int __devinit snd_es1968_create(struct snd_card *card,
        if ((err = pci_enable_device(pci)) < 0)
                return err;
        /* check, if we can restrict PCI DMA transfers to 28 bits */
-       if (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
-           pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) {
+       if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 ||
+           pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) {
                snd_printk(KERN_ERR "architecture does not support 28bit PCI busmaster DMA\n");
                pci_disable_device(pci);
                return -ENXIO;
@@ -2576,7 +2525,7 @@ static int __devinit snd_es1968_create(struct snd_card *card,
        INIT_LIST_HEAD(&chip->buf_list);
        INIT_LIST_HEAD(&chip->substream_list);
        spin_lock_init(&chip->ac97_lock);
-       init_MUTEX(&chip->memory_mutex);
+       mutex_init(&chip->memory_mutex);
        tasklet_init(&chip->hwvol_tq, es1968_update_hw_volume, (unsigned long)chip);
        chip->card = card;
        chip->pci = pci;
@@ -2591,8 +2540,8 @@ static int __devinit snd_es1968_create(struct snd_card *card,
                return err;
        }
        chip->io_port = pci_resource_start(pci, 0);
-       if (request_irq(pci->irq, snd_es1968_interrupt, SA_INTERRUPT|SA_SHIRQ,
-                       "ESS Maestro", (void*)chip)) {
+       if (request_irq(pci->irq, snd_es1968_interrupt, IRQF_SHARED,
+                       "ESS Maestro", chip)) {
                snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
                snd_es1968_free(chip);
                return -EBUSY;
@@ -2631,9 +2580,6 @@ static int __devinit snd_es1968_create(struct snd_card *card,
 
        snd_es1968_chip_init(chip);
 
-       if (chip->do_pm)
-               snd_card_set_pm_callback(card, es1968_suspend, es1968_resume, chip);
-
        if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
                snd_es1968_free(chip);
                return err;
@@ -2683,6 +2629,7 @@ static int __devinit snd_es1968_probe(struct pci_dev *pci,
                snd_card_free(card);
                return err;
        }
+       card->private_data = chip;
 
        switch (chip->type) {
        case TYPE_MAESTRO2E:
@@ -2723,7 +2670,8 @@ static int __devinit snd_es1968_probe(struct pci_dev *pci,
        }
        if (enable_mpu[dev]) {
                if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
-                                              chip->io_port + ESM_MPU401_PORT, 1,
+                                              chip->io_port + ESM_MPU401_PORT,
+                                              MPU401_INFO_INTEGRATED,
                                               chip->irq, 0, &chip->rmidi)) < 0) {
                        printk(KERN_WARNING "es1968: skipping MPU-401 MIDI support..\n");
                }
@@ -2760,7 +2708,10 @@ static struct pci_driver driver = {
        .id_table = snd_es1968_ids,
        .probe = snd_es1968_probe,
        .remove = __devexit_p(snd_es1968_remove),
-       SND_PCI_PM_CALLBACKS
+#ifdef CONFIG_PM
+       .suspend = es1968_suspend,
+       .resume = es1968_resume,
+#endif
 };
 
 static int __init alsa_card_es1968_init(void)