From ef21ca24faf28df6d06939e77d5032a313490289 Mon Sep 17 00:00:00 2001 From: Nishanth Aravamudan Date: Sat, 9 Jul 2005 10:13:22 +0200 Subject: [PATCH] [ALSA] sound/pci: fix-up sleeping paths ENS1370/1+ driver,ES1968 driver,Intel8x0 driver,VIA82xx driver VIA82xx-modem driver,AC97 Codec,ALI5451 driver,CS46xx driver MIXART driver,RME HDSP driver,Trident driver,YMFPCI driver Description: Fix-up sleeping in sound/pci. These changes fall under the following two categories: 1) Replace schedule_timeout() with msleep() to guarantee the task delays as expected. This also involved replacing/removing custom sleep functions. 2) Do not assume jiffies will only increment by one if you request a 1 jiffy sleep, i.e. use time_after/time_before in while loops. Signed-off-by: Nishanth Aravamudan Signed-off-by: Jaroslav Kysela --- sound/pci/ac97/ac97_codec.c | 17 +++++++++-------- sound/pci/ali5451/ali5451.c | 4 ++-- sound/pci/cs46xx/cs46xx_lib.c | 15 +++++---------- sound/pci/ens1370.c | 12 +----------- sound/pci/es1968.c | 14 ++++---------- sound/pci/intel8x0.c | 3 +-- sound/pci/mixart/mixart.c | 4 ++-- sound/pci/rme9652/hdsp.c | 6 ++---- sound/pci/trident/trident_main.c | 3 +-- sound/pci/via82xx.c | 13 ++++++------- sound/pci/via82xx_modem.c | 13 ++++++------- sound/pci/ymfpci/ymfpci_main.c | 6 +++--- 12 files changed, 42 insertions(+), 68 deletions(-) diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c index 0677d41..94cd989 100644 --- a/sound/pci/ac97/ac97_codec.c +++ b/sound/pci/ac97/ac97_codec.c @@ -2227,6 +2227,7 @@ void snd_ac97_restore_iec958(ac97_t *ac97) void snd_ac97_resume(ac97_t *ac97) { int i; + unsigned long end_time; if (ac97->bus->ops->reset) { ac97->bus->ops->reset(ac97); @@ -2244,26 +2245,26 @@ void snd_ac97_resume(ac97_t *ac97) snd_ac97_write(ac97, AC97_POWERDOWN, ac97->regs[AC97_POWERDOWN]); if (ac97_is_audio(ac97)) { ac97->bus->ops->write(ac97, AC97_MASTER, 0x8101); - for (i = HZ/10; i >= 0; i--) { + end_time = jiffies + msecs_to_jiffies(100); + do { if (snd_ac97_read(ac97, AC97_MASTER) == 0x8101) break; set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(1); - } + } while (time_after_eq(end_time, jiffies)); /* FIXME: extra delay */ ac97->bus->ops->write(ac97, AC97_MASTER, 0x8000); - if (snd_ac97_read(ac97, AC97_MASTER) != 0x8000) { - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ/4); - } + if (snd_ac97_read(ac97, AC97_MASTER) != 0x8000) + msleep(250); } else { - for (i = HZ/10; i >= 0; i--) { + end_time = jiffies + msecs_to_jiffies(100); + do { unsigned short val = snd_ac97_read(ac97, AC97_EXTENDED_MID); if (val != 0xffff && (val & 1) != 0) break; set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(1); - } + } while (time_after_eq(end_time, jiffies)); } __reset_ready: diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c index eb5c36d..f08ae71f 100644 --- a/sound/pci/ali5451/ali5451.c +++ b/sound/pci/ali5451/ali5451.c @@ -399,7 +399,7 @@ static int snd_ali_codec_ready( ali_t *codec, unsigned long end_time; unsigned int res; - end_time = jiffies + 10 * (HZ >> 2); + end_time = jiffies + 10 * msecs_to_jiffies(250); do { res = snd_ali_5451_peek(codec,port); if (! (res & 0x8000)) @@ -422,7 +422,7 @@ static int snd_ali_stimer_ready(ali_t *codec, int sched) dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER); dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER); - end_time = jiffies + 10 * (HZ >> 2); + end_time = jiffies + 10 * msecs_to_jiffies(250); do { dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER); if (dwChk2 != dwChk1) diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c index fd4c50c..ff28af1 100644 --- a/sound/pci/cs46xx/cs46xx_lib.c +++ b/sound/pci/cs46xx/cs46xx_lib.c @@ -2400,8 +2400,7 @@ static void snd_cs46xx_codec_reset (ac97_t * ac97) if ((err = snd_ac97_read(ac97, AC97_REC_GAIN)) == 0x8a05) return; - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ/100); + msleep(10); } while (time_after_eq(end_time, jiffies)); snd_printk("CS46xx secondary codec dont respond!\n"); @@ -2435,8 +2434,7 @@ static int __devinit cs46xx_detect_codec(cs46xx_t *chip, int codec) err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97[codec]); return err; } - set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(HZ/100); + msleep(10); } snd_printdd("snd_cs46xx: codec %d detection timeout\n", codec); return -ENXIO; @@ -3018,8 +3016,7 @@ static int snd_cs46xx_chip_init(cs46xx_t *chip) /* * Wait until the PLL has stabilized. */ - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ/10); /* 100ms */ + msleep(100); /* * Turn on clocking of the core so that we can setup the serial ports. @@ -3072,8 +3069,7 @@ static int snd_cs46xx_chip_init(cs46xx_t *chip) */ if (snd_cs46xx_peekBA0(chip, BA0_ACSTS) & ACSTS_CRDY) goto ok1; - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout((HZ+99)/100); + msleep(10); } @@ -3122,8 +3118,7 @@ static int snd_cs46xx_chip_init(cs46xx_t *chip) */ if ((snd_cs46xx_peekBA0(chip, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4)) goto ok2; - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout((HZ+99)/100); + msleep(10); } #ifndef CONFIG_SND_CS46XX_NEW_DSP diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c index d428733..78a81f3 100644 --- a/sound/pci/ens1370.c +++ b/sound/pci/ens1370.c @@ -2018,21 +2018,11 @@ static int __devinit snd_ensoniq_create(snd_card_t * card, if (pci->vendor == es1371_ac97_reset_hack[idx].vid && pci->device == es1371_ac97_reset_hack[idx].did && ensoniq->rev == es1371_ac97_reset_hack[idx].rev) { - unsigned long tmo; - signed long tmo2; - ensoniq->cssr |= ES_1371_ST_AC97_RST; outl(ensoniq->cssr, ES_REG(ensoniq, STATUS)); /* need to delay around 20ms(bleech) to give some CODECs enough time to wakeup */ - tmo = jiffies + (HZ / 50) + 1; - while (1) { - tmo2 = tmo - jiffies; - if (tmo2 <= 0) - break; - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(tmo2); - } + msleep(20); break; } /* AC'97 warm reset to start the bitclk */ diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c index 327a341..9d7a287 100644 --- a/sound/pci/es1968.c +++ b/sound/pci/es1968.c @@ -664,11 +664,6 @@ static inline u16 maestro_read(es1968_t *chip, u16 reg) return result; } -#define big_mdelay(msec) do {\ - set_current_state(TASK_UNINTERRUPTIBLE);\ - schedule_timeout(((msec) * HZ + 999) / 1000);\ -} while (0) - /* Wait for the codec bus to be free */ static int snd_es1968_ac97_wait(es1968_t *chip) { @@ -1809,8 +1804,7 @@ static void __devinit es1968_measure_clock(es1968_t *chip) snd_es1968_trigger_apu(chip, apu, ESM_APU_16BITLINEAR); do_gettimeofday(&start_time); spin_unlock_irq(&chip->reg_lock); - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ / 20); /* 50 msec */ + msleep(50); spin_lock_irq(&chip->reg_lock); offset = __apu_get_register(chip, apu, 5); do_gettimeofday(&stop_time); @@ -2093,7 +2087,7 @@ static void snd_es1968_ac97_reset(es1968_t *chip) outw(0x0000, ioaddr + 0x60); /* write 0 to gpio 0 */ udelay(20); outw(0x0001, ioaddr + 0x60); /* write 1 to gpio 1 */ - big_mdelay(20); + msleep(20); outw(save_68 | 0x1, ioaddr + 0x68); /* now restore .. */ outw((inw(ioaddr + 0x38) & 0xfffc) | 0x1, ioaddr + 0x38); @@ -2109,7 +2103,7 @@ static void snd_es1968_ac97_reset(es1968_t *chip) outw(0x0001, ioaddr + 0x60); /* write 1 to gpio */ udelay(20); outw(0x0009, ioaddr + 0x60); /* write 9 to gpio */ - big_mdelay(500); + msleep(500); //outw(inw(ioaddr + 0x38) & 0xfffc, ioaddr + 0x38); outw(inw(ioaddr + 0x3a) & 0xfffc, ioaddr + 0x3a); outw(inw(ioaddr + 0x3c) & 0xfffc, ioaddr + 0x3c); @@ -2135,7 +2129,7 @@ static void snd_es1968_ac97_reset(es1968_t *chip) if (w > 10000) { outb(inb(ioaddr + 0x37) | 0x08, ioaddr + 0x37); /* do a software reset */ - big_mdelay(500); /* oh my.. */ + msleep(500); /* oh my.. */ outb(inb(ioaddr + 0x37) & ~0x08, ioaddr + 0x37); udelay(1); diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c index c3c3b68..7c806bd 100644 --- a/sound/pci/intel8x0.c +++ b/sound/pci/intel8x0.c @@ -2464,8 +2464,7 @@ static void __devinit intel8x0_measure_ac97_clock(intel8x0_t *chip) } do_gettimeofday(&start_time); spin_unlock_irq(&chip->reg_lock); - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ / 20); + msleep(50); spin_lock_irq(&chip->reg_lock); /* check the position */ pos = ichdev->fragsize1; diff --git a/sound/pci/mixart/mixart.c b/sound/pci/mixart/mixart.c index 082c0d0..6c868d9 100644 --- a/sound/pci/mixart/mixart.c +++ b/sound/pci/mixart/mixart.c @@ -445,9 +445,9 @@ static int snd_mixart_trigger(snd_pcm_substream_t *subs, int cmd) static int mixart_sync_nonblock_events(mixart_mgr_t *mgr) { - int timeout = HZ; + unsigned long timeout = jiffies + HZ; while (atomic_read(&mgr->msg_processed) > 0) { - if (! timeout--) { + if (time_after(jiffies, timeout)) { snd_printk(KERN_ERR "mixart: cannot process nonblock events!\n"); return -EBUSY; } diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c index 0db558a..796621d 100644 --- a/sound/pci/rme9652/hdsp.c +++ b/sound/pci/rme9652/hdsp.c @@ -679,8 +679,7 @@ static int snd_hdsp_load_firmware_from_cache(hdsp_t *hdsp) { } if ((1000 / HZ) < 3000) { - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout((3000 * HZ + 999) / 1000); + ssleep(3); } else { mdelay(3000); } @@ -5080,8 +5079,7 @@ static int __devinit snd_hdsp_create(snd_card_t *card, if (!is_9652 && !is_9632) { /* we wait 2 seconds to let freshly inserted cardbus cards do their hardware init */ if ((1000 / HZ) < 2000) { - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout((2000 * HZ + 999) / 1000); + ssleep(2); } else { mdelay(2000); } diff --git a/sound/pci/trident/trident_main.c b/sound/pci/trident/trident_main.c index b01c91b..29d89bfb 100644 --- a/sound/pci/trident/trident_main.c +++ b/sound/pci/trident/trident_main.c @@ -3153,8 +3153,7 @@ static int snd_trident_gameport_open(struct gameport *gameport, int mode) switch (mode) { case GAMEPORT_MODE_COOKED: outb(GAMEPORT_MODE_ADC, TRID_REG(chip, GAMEPORT_GCR)); - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(1 + 20 * HZ / 1000); /* 20msec */ + msleep(20); return 0; case GAMEPORT_MODE_RAW: outb(0, TRID_REG(chip, GAMEPORT_GCR)); diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c index 064972b..890582c 100644 --- a/sound/pci/via82xx.c +++ b/sound/pci/via82xx.c @@ -547,8 +547,7 @@ static void snd_via82xx_codec_wait(ac97_t *ac97) int err; err = snd_via82xx_codec_ready(chip, ac97->num); /* here we need to wait fairly for long time.. */ - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ/2); + msleep(500); } static void snd_via82xx_codec_write(ac97_t *ac97, @@ -1847,7 +1846,7 @@ static void __devinit snd_via82xx_proc_init(via82xx_t *chip) static int snd_via82xx_chip_init(via82xx_t *chip) { unsigned int val; - int max_count; + unsigned long end_time; unsigned char pval; #if 0 /* broken on K7M? */ @@ -1889,14 +1888,14 @@ static int snd_via82xx_chip_init(via82xx_t *chip) } /* wait until codec ready */ - max_count = ((3 * HZ) / 4) + 1; + end_time = jiffies + msecs_to_jiffies(750); do { pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval); if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */ break; set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(1); - } while (--max_count > 0); + } while (time_before(jiffies, end_time)); if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY) snd_printk("AC'97 codec is not ready [0x%x]\n", val); @@ -1905,7 +1904,7 @@ static int snd_via82xx_chip_init(via82xx_t *chip) snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ | VIA_REG_AC97_SECONDARY_VALID | (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT)); - max_count = ((3 * HZ) / 4) + 1; + end_time = jiffies + msecs_to_jiffies(750); snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ | VIA_REG_AC97_SECONDARY_VALID | (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT)); @@ -1916,7 +1915,7 @@ static int snd_via82xx_chip_init(via82xx_t *chip) } set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(1); - } while (--max_count > 0); + } while (time_before(jiffies, end_time)); /* This is ok, the most of motherboards have only one codec */ __ac97_ok2: diff --git a/sound/pci/via82xx_modem.c b/sound/pci/via82xx_modem.c index 5896d28..4a9779c 100644 --- a/sound/pci/via82xx_modem.c +++ b/sound/pci/via82xx_modem.c @@ -408,8 +408,7 @@ static void snd_via82xx_codec_wait(ac97_t *ac97) int err; err = snd_via82xx_codec_ready(chip, ac97->num); /* here we need to wait fairly for long time.. */ - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(HZ/2); + msleep(500); } static void snd_via82xx_codec_write(ac97_t *ac97, @@ -923,7 +922,7 @@ static void __devinit snd_via82xx_proc_init(via82xx_t *chip) static int snd_via82xx_chip_init(via82xx_t *chip) { unsigned int val; - int max_count; + unsigned long end_time; unsigned char pval; pci_read_config_byte(chip->pci, VIA_MC97_CTRL, &pval); @@ -962,14 +961,14 @@ static int snd_via82xx_chip_init(via82xx_t *chip) } /* wait until codec ready */ - max_count = ((3 * HZ) / 4) + 1; + end_time = jiffies + msecs_to_jiffies(750); do { pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval); if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */ break; set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(1); - } while (--max_count > 0); + } while (time_before(jiffies, end_time)); if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY) snd_printk("AC'97 codec is not ready [0x%x]\n", val); @@ -977,7 +976,7 @@ static int snd_via82xx_chip_init(via82xx_t *chip) snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ | VIA_REG_AC97_SECONDARY_VALID | (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT)); - max_count = ((3 * HZ) / 4) + 1; + end_time = jiffies + msecs_to_jiffies(750); snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ | VIA_REG_AC97_SECONDARY_VALID | (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT)); @@ -988,7 +987,7 @@ static int snd_via82xx_chip_init(via82xx_t *chip) } set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(1); - } while (--max_count > 0); + } while (time_before(jiffies, end_time)); /* This is ok, the most of motherboards have only one codec */ __ac97_ok2: diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c index 2ae7961..d54f88a 100644 --- a/sound/pci/ymfpci/ymfpci_main.c +++ b/sound/pci/ymfpci/ymfpci_main.c @@ -84,16 +84,16 @@ static inline void snd_ymfpci_writel(ymfpci_t *chip, u32 offset, u32 val) static int snd_ymfpci_codec_ready(ymfpci_t *chip, int secondary) { - signed long end_time; + unsigned long end_time; u32 reg = secondary ? YDSXGR_SECSTATUSADR : YDSXGR_PRISTATUSADR; - end_time = (jiffies + ((3 * HZ) / 4)) + 1; + end_time = jiffies + msecs_to_jiffies(750); do { if ((snd_ymfpci_readw(chip, reg) & 0x8000) == 0) return 0; set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(1); - } while (end_time - (signed long)jiffies >= 0); + } while (time_before(jiffies, end_time)); snd_printk("codec_ready: codec %i is not ready [0x%x]\n", secondary, snd_ymfpci_readw(chip, reg)); return -EBUSY; } -- 2.7.4