From 30b35399ceb2398d05837863476dcb12f12f3a82 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 11 Oct 2006 18:52:53 +0200 Subject: [ALSA] Various fixes for suspend/resume of ALSA PCI drivers - Check the return value of pci_enable_device() and request_irq() in the suspend. If any error occurs there, disable the device using snd_card_disconnect(). - Call pci_set_power_state() properly with pci_choose_state(). - Fix the order to call pci_set_power_state(). - Removed obsolete house-made PM codes in some drivers. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/pci/es1968.c | 71 ++++++++---------------------------------------------- 1 file changed, 10 insertions(+), 61 deletions(-) (limited to 'sound/pci/es1968.c') diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c index b9d723c7e1db..092da53e1464 100644 --- a/sound/pci/es1968.c +++ b/sound/pci/es1968.c @@ -432,46 +432,6 @@ 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 { @@ -2159,21 +2119,6 @@ static void snd_es1968_reset(struct es1968 *chip) udelay(10); } -/* - * 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 */ @@ -2196,9 +2141,6 @@ 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); @@ -2397,9 +2339,10 @@ static int es1968_suspend(struct pci_dev *pci, pm_message_t state) 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(pci); pci_save_state(pci); + pci_set_power_state(pci, pci_choose_state(pci, state)); return 0; } @@ -2413,9 +2356,16 @@ static int es1968_resume(struct pci_dev *pci) return 0; /* restore all our config */ + pci_set_power_state(pci, PCI_D0); pci_restore_state(pci); - pci_enable_device(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.. */ @@ -2514,7 +2464,6 @@ static int snd_es1968_free(struct es1968 *chip) if (chip->irq >= 0) free_irq(chip->irq, (void *)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); -- cgit v1.2.3