October 2009 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] [PATCH 3/14] sound/parisc: Move dereference after NULL test
by Julia Lawall 30 Oct '09

30 Oct '09

From: Julia Lawall <julia(a)diku.dk> If the NULL test on h is needed in snd_harmony_mixer_init, then the dereference should be after the NULL test. Actually, there is a sequence of calls: snd_harmony_create, then snd_harmony_pcm_init, and then snd_harmony_mixer_init. snd_harmony_create initializes h, but may indeed leave it as NULL. There was no NULL test at the beginning of snd_harmony_pcm_init, so I have added one. The NULL test in snd_harmony_mixer_init is then not necessary, but in case the ordering of the calls changes, I have left it, and moved the dereference after it. A simplified version of the semantic match that detects this problem is as follows (http://coccinelle.lip6.fr/): // <smpl> @match exists@ expression x, E; identifier fld; @@ * x->fld ... when != $x = E\|&x$ * x == NULL // </smpl> Signed-off-by: Julia Lawall <julia(a)diku.dk> --- sound/parisc/harmony.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/sound/parisc/harmony.c b/sound/parisc/harmony.c index e924492..f47f9e2 100644 --- a/sound/parisc/harmony.c +++ b/sound/parisc/harmony.c @@ -624,6 +624,9 @@ snd_harmony_pcm_init(struct snd_harmony *h) struct snd_pcm *pcm; int err; + if (snd_BUG_ON(!h)) + return -EINVAL; + harmony_disable_interrupts(h); err = snd_pcm_new(h->card, "harmony", 0, 1, 1, &pcm); @@ -865,11 +868,12 @@ snd_harmony_mixer_reset(struct snd_harmony *h) static int __devinit snd_harmony_mixer_init(struct snd_harmony *h) { - struct snd_card *card = h->card; + struct snd_card *card; int idx, err; if (snd_BUG_ON(!h)) return -EINVAL; + card = h->card; strcpy(card->mixername, "Harmony Gain control interface"); for (idx = 0; idx < HARMONY_CONTROLS; idx++) {

3 2

[alsa-devel] [PATCH 1/2] es18xx: remove snd_card pointer from snd_es18xx structure
by Krzysztof Helt 30 Oct '09

30 Oct '09

From: Krzysztof Helt <krzysztof.h1(a)wp.pl> The snd_card pointer is redundant and code can be easily changed to work without it. Signed-off-by: Krzysztof Helt <krzysztof.h1(a)wp.pl> --- Both patches are just small code improvement for the driver. sound/isa/es18xx.c | 75 ++++++++++++++++++++++++++++++--------------------- 1 files changed, 44 insertions(+), 31 deletions(-) diff --git a/sound/isa/es18xx.c b/sound/isa/es18xx.c index 8cfbff7..160752b 100644 --- a/sound/isa/es18xx.c +++ b/sound/isa/es18xx.c @@ -121,7 +121,6 @@ struct snd_es18xx { unsigned int dma1_shift; unsigned int dma2_shift; - struct snd_card *card; struct snd_pcm *pcm; struct snd_pcm_substream *playback_a_substream; struct snd_pcm_substream *capture_a_substream; @@ -755,7 +754,9 @@ static int snd_es18xx_playback_trigger(struct snd_pcm_substream *substream, static irqreturn_t snd_es18xx_interrupt(int irq, void *dev_id) { - struct snd_es18xx *chip = dev_id; + struct snd_card *card = dev_id; + struct snd_audiodrive *acard = card->private_data; + struct snd_es18xx *chip = acard->chip; unsigned char status; if (chip->caps & ES18XX_CONTROL) { @@ -805,12 +806,16 @@ static irqreturn_t snd_es18xx_interrupt(int irq, void *dev_id) int split = 0; if (chip->caps & ES18XX_HWV) { split = snd_es18xx_mixer_read(chip, 0x64) & 0x80; - snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_switch->id); - snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_volume->id); + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &chip->hw_switch->id); + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &chip->hw_volume->id); } if (!split) { - snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->master_switch->id); - snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->master_volume->id); + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &chip->master_switch->id); + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &chip->master_volume->id); } /* ack interrupt */ snd_es18xx_mixer_write(chip, 0x66, 0x00); @@ -1691,8 +1696,11 @@ static struct snd_pcm_ops snd_es18xx_capture_ops = { .pointer = snd_es18xx_capture_pointer, }; -static int __devinit snd_es18xx_pcm(struct snd_es18xx *chip, int device, struct snd_pcm ** rpcm) +static int __devinit snd_es18xx_pcm(struct snd_card *card, int device, + struct snd_pcm **rpcm) { + struct snd_audiodrive *acard = card->private_data; + struct snd_es18xx *chip = acard->chip; struct snd_pcm *pcm; char str[16]; int err; @@ -1701,9 +1709,9 @@ static int __devinit snd_es18xx_pcm(struct snd_es18xx *chip, int device, struct *rpcm = NULL; sprintf(str, "ES%x", chip->version); if (chip->caps & ES18XX_PCM2) - err = snd_pcm_new(chip->card, str, device, 2, 1, &pcm); + err = snd_pcm_new(card, str, device, 2, 1, &pcm); else - err = snd_pcm_new(chip->card, str, device, 1, 1, &pcm); + err = snd_pcm_new(card, str, device, 1, 1, &pcm); if (err < 0) return err; @@ -1737,7 +1745,7 @@ static int snd_es18xx_suspend(struct snd_card *card, pm_message_t state) struct snd_audiodrive *acard = card->private_data; struct snd_es18xx *chip = acard->chip; - snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot); + snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); snd_pcm_suspend_all(chip->pcm); @@ -1758,18 +1766,21 @@ static int snd_es18xx_resume(struct snd_card *card) /* restore PM register, we won't wake till (not 0x07) i/o activity though */ snd_es18xx_write(chip, ES18XX_PM, chip->pm_reg ^= ES18XX_PM_FM); - snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); + snd_power_change_state(card, SNDRV_CTL_POWER_D0); return 0; } #endif /* CONFIG_PM */ -static int snd_es18xx_free(struct snd_es18xx *chip) +static int snd_es18xx_free(struct snd_card *card) { + struct snd_audiodrive *acard = card->private_data; + struct snd_es18xx *chip = acard->chip; + release_and_free_resource(chip->res_port); release_and_free_resource(chip->res_ctrl_port); release_and_free_resource(chip->res_mpu_port); if (chip->irq >= 0) - free_irq(chip->irq, (void *) chip); + free_irq(chip->irq, (void *) card); if (chip->dma1 >= 0) { disable_dma(chip->dma1); free_dma(chip->dma1); @@ -1784,8 +1795,7 @@ static int snd_es18xx_free(struct snd_es18xx *chip) static int snd_es18xx_dev_free(struct snd_device *device) { - struct snd_es18xx *chip = device->device_data; - return snd_es18xx_free(chip); + return snd_es18xx_free(device->card); } static int __devinit snd_es18xx_new_device(struct snd_card *card, @@ -1808,7 +1818,6 @@ static int __devinit snd_es18xx_new_device(struct snd_card *card, spin_lock_init(&chip->reg_lock); spin_lock_init(&chip->mixer_lock); spin_lock_init(&chip->ctrl_lock); - chip->card = card; chip->port = port; chip->mpu_port = mpu_port; chip->fm_port = fm_port; @@ -1818,53 +1827,55 @@ static int __devinit snd_es18xx_new_device(struct snd_card *card, chip->audio2_vol = 0x00; chip->active = 0; - if ((chip->res_port = request_region(port, 16, "ES18xx")) == NULL) { - snd_es18xx_free(chip); + chip->res_port = request_region(port, 16, "ES18xx"); + if (chip->res_port == NULL) { + snd_es18xx_free(card); snd_printk(KERN_ERR PFX "unable to grap ports 0x%lx-0x%lx\n", port, port + 16 - 1); return -EBUSY; } - if (request_irq(irq, snd_es18xx_interrupt, IRQF_DISABLED, "ES18xx", (void *) chip)) { - snd_es18xx_free(chip); + if (request_irq(irq, snd_es18xx_interrupt, IRQF_DISABLED, "ES18xx", + (void *) card)) { + snd_es18xx_free(card); snd_printk(KERN_ERR PFX "unable to grap IRQ %d\n", irq); return -EBUSY; } chip->irq = irq; if (request_dma(dma1, "ES18xx DMA 1")) { - snd_es18xx_free(chip); + snd_es18xx_free(card); snd_printk(KERN_ERR PFX "unable to grap DMA1 %d\n", dma1); return -EBUSY; } chip->dma1 = dma1; if (dma2 != dma1 && request_dma(dma2, "ES18xx DMA 2")) { - snd_es18xx_free(chip); + snd_es18xx_free(card); snd_printk(KERN_ERR PFX "unable to grap DMA2 %d\n", dma2); return -EBUSY; } chip->dma2 = dma2; if (snd_es18xx_probe(chip) < 0) { - snd_es18xx_free(chip); + snd_es18xx_free(card); return -ENODEV; } - if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { - snd_es18xx_free(chip); + err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, NULL, &ops); + if (err < 0) { + snd_es18xx_free(card); return err; } *rchip = chip; return 0; } -static int __devinit snd_es18xx_mixer(struct snd_es18xx *chip) +static int __devinit snd_es18xx_mixer(struct snd_card *card) { - struct snd_card *card; + struct snd_audiodrive *acard = card->private_data; + struct snd_es18xx *chip = acard->chip; int err; unsigned int idx; - card = chip->card; - strcpy(card->mixername, chip->pcm->name); for (idx = 0; idx < ARRAY_SIZE(snd_es18xx_base_controls); idx++) { @@ -2161,10 +2172,12 @@ static int __devinit snd_audiodrive_probe(struct snd_card *card, int dev) chip->port, irq[dev], dma1[dev]); - if ((err = snd_es18xx_pcm(chip, 0, NULL)) < 0) + err = snd_es18xx_pcm(card, 0, NULL); + if (err < 0) return err; - if ((err = snd_es18xx_mixer(chip)) < 0) + err = snd_es18xx_mixer(card); + if (err < 0) return err; if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) { -- 1.6.0.3 ---------------------------------------------------------------------- Sprawdz jak dziala nowy Windows Sprawdz na >>> http://link.interia.pl/f23ea <<<

2 1

[alsa-devel] [PATCH] remove OSS Ensoniq SoundScape driver
by Krzysztof Helt 30 Oct '09

30 Oct '09

From: Krzysztof Helt <krzysztof.h1(a)wp.pl> The OSS driver for Ensoniq SoundScape cards is broken after conversion to mutexes and a new ALSA snd-sscape driver handles all devices handled by the OSS one. The ALSA driver was tested with these cards: Spea V7 MediaFX Ensoniq Soundscape Elite Ensoniq Soundscape VIVO (this card is not handled by the OSS driver) Signed-off-by: Krzysztof Helt <krzysztof.h1(a)wp.pl> --- Theodore Allen confirmed that that the new driver works for his Ensoniq Soundscape Elite card (both MIDI and PCM): "I decided to upgrade to 2.6.28.10 from 2.6.28. I also put the firmware in the /lib/firmware directory. Now the MIDI seems to work on most files. There are a few that sound odd, but perhaps it's the midi map. I have no idea why the driver allowed the sscape_ctl program to load the firmware earlier, but it doesn't now. Was there an ALSA change between 2.6.28 and 2.6.28.10? Less happily, the sound seems now to have a very faint "zzzt" kind of "click" just before playing, which I think it didn't with 2.6.28. I'll verify that after I reboot into the old kernel." I will investigate the PCM issue after he confirms that it is a regression. This allows closing the ALSA bug #2234. diff --git a/sound/oss/Kconfig b/sound/oss/Kconfig index bcf2a06..135a2b7 100644 --- a/sound/oss/Kconfig +++ b/sound/oss/Kconfig @@ -287,18 +287,6 @@ config SOUND_DMAP Say Y unless you have 16MB or more RAM or a PCI sound card. -config SOUND_SSCAPE - tristate "Ensoniq SoundScape support" - help - Answer Y if you have a sound card based on the Ensoniq SoundScape - chipset. Such cards are being manufactured at least by Ensoniq, Spea - and Reveal (Reveal makes also other cards). - - If you compile the driver into the kernel, you have to add - "sscape=<io>,<irq>,<dma>,<mpuio>,<mpuirq>" to the kernel command - line. - - config SOUND_VMIDI tristate "Loopback MIDI device support" help diff --git a/sound/oss/Makefile b/sound/oss/Makefile index e0ae4d4..567b8a7 100644 --- a/sound/oss/Makefile +++ b/sound/oss/Makefile @@ -13,7 +13,6 @@ obj-$(CONFIG_SOUND_SH_DAC_AUDIO) += sh_dac_audio.o obj-$(CONFIG_SOUND_AEDSP16) += aedsp16.o obj-$(CONFIG_SOUND_PSS) += pss.o ad1848.o mpu401.o obj-$(CONFIG_SOUND_TRIX) += trix.o ad1848.o sb_lib.o uart401.o -obj-$(CONFIG_SOUND_SSCAPE) += sscape.o ad1848.o mpu401.o obj-$(CONFIG_SOUND_MSS) += ad1848.o obj-$(CONFIG_SOUND_PAS) += pas2.o sb.o sb_lib.o uart401.o obj-$(CONFIG_SOUND_SB) += sb.o sb_lib.o uart401.o diff --git a/sound/oss/sscape.c b/sound/oss/sscape.c deleted file mode 100644 index 30c36d1..0000000 --- a/sound/oss/sscape.c +++ /dev/null @@ -1,1480 +0,0 @@ -/* - * sound/oss/sscape.c - * - * Low level driver for Ensoniq SoundScape - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * - * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) - * Sergey Smitienko : ensoniq p'n'p support - * Christoph Hellwig : adapted to module_init/module_exit - * Bartlomiej Zolnierkiewicz : added __init to attach_sscape() - * Chris Rankin : Specify that this module owns the coprocessor - * Arnaldo C. de Melo : added missing restore_flags in sscape_pnp_upload_file - */ - -#include <linux/init.h> -#include <linux/module.h> - -#include "sound_config.h" -#include "sound_firmware.h" - -#include <linux/types.h> -#include <linux/errno.h> -#include <linux/signal.h> -#include <linux/fcntl.h> -#include <linux/ctype.h> -#include <linux/stddef.h> -#include <linux/kmod.h> -#include <asm/dma.h> -#include <asm/io.h> -#include <linux/wait.h> -#include <linux/slab.h> -#include <linux/ioport.h> -#include <linux/delay.h> -#include <linux/proc_fs.h> -#include <linux/mm.h> -#include <linux/spinlock.h> - -#include "coproc.h" - -#include "ad1848.h" -#include "mpu401.h" - -/* - * I/O ports - */ -#define MIDI_DATA 0 -#define MIDI_CTRL 1 -#define HOST_CTRL 2 -#define TX_READY 0x02 -#define RX_READY 0x01 -#define HOST_DATA 3 -#define ODIE_ADDR 4 -#define ODIE_DATA 5 - -/* - * Indirect registers - */ - -#define GA_INTSTAT_REG 0 -#define GA_INTENA_REG 1 -#define GA_DMAA_REG 2 -#define GA_DMAB_REG 3 -#define GA_INTCFG_REG 4 -#define GA_DMACFG_REG 5 -#define GA_CDCFG_REG 6 -#define GA_SMCFGA_REG 7 -#define GA_SMCFGB_REG 8 -#define GA_HMCTL_REG 9 - -/* - * DMA channel identifiers (A and B) - */ - -#define SSCAPE_DMA_A 0 -#define SSCAPE_DMA_B 1 - -#define PORT(name) (devc->base+name) - -/* - * Host commands recognized by the OBP microcode - */ - -#define CMD_GEN_HOST_ACK 0x80 -#define CMD_GEN_MPU_ACK 0x81 -#define CMD_GET_BOARD_TYPE 0x82 -#define CMD_SET_CONTROL 0x88 /* Old firmware only */ -#define CMD_GET_CONTROL 0x89 /* Old firmware only */ -#define CTL_MASTER_VOL 0 -#define CTL_MIC_MODE 2 -#define CTL_SYNTH_VOL 4 -#define CTL_WAVE_VOL 7 -#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 IC_ODIE 1 -#define IC_OPUS 2 - -typedef struct sscape_info -{ - int base, irq, dma; - - int codec, codec_irq; /* required to setup pnp cards*/ - int codec_type; - int ic_type; - char* raw_buf; - unsigned long raw_buf_phys; - int buffsize; /* -------------------------- */ - spinlock_t lock; - int ok; /* Properly detected */ - int failed; - int dma_allocated; - int codec_audiodev; - int opened; - int *osp; - int my_audiodev; -} sscape_info; - -static struct sscape_info adev_info = { - 0 -}; - -static struct sscape_info *devc = &adev_info; -static int sscape_mididev = -1; - -/* Some older cards have assigned interrupt bits differently than new ones */ -static char valid_interrupts_old[] = { - 9, 7, 5, 15 -}; - -static char valid_interrupts_new[] = { - 9, 5, 7, 10 -}; - -static char *valid_interrupts = valid_interrupts_new; - -/* - * See the bottom of the driver. This can be set by spea =0/1. - */ - -#ifdef REVEAL_SPEA -static char old_hardware = 1; -#else -static char old_hardware; -#endif - -static void sleep(unsigned howlong) -{ - current->state = TASK_INTERRUPTIBLE; - schedule_timeout(howlong); -} - -static unsigned char sscape_read(struct sscape_info *devc, int reg) -{ - unsigned long flags; - unsigned char val; - - spin_lock_irqsave(&devc->lock,flags); - outb(reg, PORT(ODIE_ADDR)); - val = inb(PORT(ODIE_DATA)); - spin_unlock_irqrestore(&devc->lock,flags); - return val; -} - -static void __sscape_write(int reg, int data) -{ - outb(reg, PORT(ODIE_ADDR)); - outb(data, PORT(ODIE_DATA)); -} - -static void sscape_write(struct sscape_info *devc, int reg, int data) -{ - unsigned long flags; - - spin_lock_irqsave(&devc->lock,flags); - __sscape_write(reg, data); - spin_unlock_irqrestore(&devc->lock,flags); -} - -static unsigned char sscape_pnp_read_codec(sscape_info* devc, unsigned char reg) -{ - unsigned char res; - unsigned long flags; - - spin_lock_irqsave(&devc->lock,flags); - outb( reg, devc -> codec); - res = inb (devc -> codec + 1); - spin_unlock_irqrestore(&devc->lock,flags); - return res; - -} - -static void sscape_pnp_write_codec(sscape_info* devc, unsigned char reg, unsigned char data) -{ - unsigned long flags; - - spin_lock_irqsave(&devc->lock,flags); - outb( reg, devc -> codec); - outb( data, devc -> codec + 1); - spin_unlock_irqrestore(&devc->lock,flags); -} - -static void host_open(struct sscape_info *devc) -{ - outb((0x00), PORT(HOST_CTRL)); /* Put the board to the host mode */ -} - -static void host_close(struct sscape_info *devc) -{ - outb((0x03), PORT(HOST_CTRL)); /* Put the board to the MIDI mode */ -} - -static int host_write(struct sscape_info *devc, unsigned char *data, int count) -{ - unsigned long flags; - int i, timeout_val; - - spin_lock_irqsave(&devc->lock,flags); - /* - * Send the command and data bytes - */ - - for (i = 0; i < count; i++) - { - for (timeout_val = 10000; timeout_val > 0; timeout_val--) - if (inb(PORT(HOST_CTRL)) & TX_READY) - break; - - if (timeout_val <= 0) - { - spin_unlock_irqrestore(&devc->lock,flags); - return 0; - } - outb(data[i], PORT(HOST_DATA)); - } - spin_unlock_irqrestore(&devc->lock,flags); - return 1; -} - -static int host_read(struct sscape_info *devc) -{ - unsigned long flags; - int timeout_val; - unsigned char data; - - spin_lock_irqsave(&devc->lock,flags); - /* - * Read a byte - */ - - for (timeout_val = 10000; timeout_val > 0; timeout_val--) - if (inb(PORT(HOST_CTRL)) & RX_READY) - break; - - if (timeout_val <= 0) - { - spin_unlock_irqrestore(&devc->lock,flags); - return -1; - } - data = inb(PORT(HOST_DATA)); - spin_unlock_irqrestore(&devc->lock,flags); - return data; -} - -#if 0 /* unused */ -static int host_command1(struct sscape_info *devc, int cmd) -{ - unsigned char buf[10]; - buf[0] = (unsigned char) (cmd & 0xff); - return host_write(devc, buf, 1); -} -#endif /* unused */ - - -static int host_command2(struct sscape_info *devc, int cmd, int parm1) -{ - unsigned char buf[10]; - - buf[0] = (unsigned char) (cmd & 0xff); - buf[1] = (unsigned char) (parm1 & 0xff); - - return host_write(devc, buf, 2); -} - -static int host_command3(struct sscape_info *devc, int cmd, int parm1, int parm2) -{ - unsigned char buf[10]; - - buf[0] = (unsigned char) (cmd & 0xff); - buf[1] = (unsigned char) (parm1 & 0xff); - buf[2] = (unsigned char) (parm2 & 0xff); - return host_write(devc, buf, 3); -} - -static void set_mt32(struct sscape_info *devc, int value) -{ - host_open(devc); - host_command2(devc, CMD_SET_MT32, value ? 1 : 0); - if (host_read(devc) != CMD_ACK) - { - /* printk( "SNDSCAPE: Setting MT32 mode failed\n"); */ - } - host_close(devc); -} - -static void set_control(struct sscape_info *devc, int ctrl, int value) -{ - host_open(devc); - host_command3(devc, CMD_SET_CONTROL, ctrl, value); - if (host_read(devc) != CMD_ACK) - { - /* printk( "SNDSCAPE: Setting control (%d) failed\n", ctrl); */ - } - host_close(devc); -} - -static void do_dma(struct sscape_info *devc, int dma_chan, unsigned long buf, int blk_size, int mode) -{ - unsigned char temp; - - if (dma_chan != SSCAPE_DMA_A) - { - printk(KERN_WARNING "soundscape: Tried to use DMA channel != A. Why?\n"); - return; - } - audio_devs[devc->codec_audiodev]->flags &= ~DMA_AUTOMODE; - DMAbuf_start_dma(devc->codec_audiodev, buf, blk_size, mode); - audio_devs[devc->codec_audiodev]->flags |= DMA_AUTOMODE; - - temp = devc->dma << 4; /* Setup DMA channel select bits */ - if (devc->dma <= 3) - temp |= 0x80; /* 8 bit DMA channel */ - - temp |= 1; /* Trigger DMA */ - sscape_write(devc, GA_DMAA_REG, temp); - temp &= 0xfe; /* Clear DMA trigger */ - sscape_write(devc, GA_DMAA_REG, temp); -} - -static int verify_mpu(struct sscape_info *devc) -{ - /* - * The SoundScape board could be in three modes (MPU, 8250 and host). - * If the card is not in the MPU mode, enabling the MPU driver will - * cause infinite loop (the driver believes that there is always some - * received data in the buffer. - * - * Detect this by looking if there are more than 10 received MIDI bytes - * (0x00) in the buffer. - */ - - int i; - - for (i = 0; i < 10; i++) - { - if (inb(devc->base + HOST_CTRL) & 0x80) - return 1; - - if (inb(devc->base) != 0x00) - return 1; - } - printk(KERN_WARNING "SoundScape: The device is not in the MPU-401 mode\n"); - return 0; -} - -static int sscape_coproc_open(void *dev_info, int sub_device) -{ - if (sub_device == COPR_MIDI) - { - set_mt32(devc, 0); - if (!verify_mpu(devc)) - return -EIO; - } - return 0; -} - -static void sscape_coproc_close(void *dev_info, int sub_device) -{ - struct sscape_info *devc = dev_info; - unsigned long flags; - - spin_lock_irqsave(&devc->lock,flags); - if (devc->dma_allocated) - { - __sscape_write(GA_DMAA_REG, 0x20); /* DMA channel disabled */ - devc->dma_allocated = 0; - } - spin_unlock_irqrestore(&devc->lock,flags); - return; -} - -static void sscape_coproc_reset(void *dev_info) -{ -} - -static int sscape_download_boot(struct sscape_info *devc, unsigned char *block, int size, int flag) -{ - unsigned long flags; - unsigned char temp; - volatile int done, timeout_val; - static unsigned char codec_dma_bits; - - if (flag & CPF_FIRST) - { - /* - * First block. Have to allocate DMA and to reset the board - * before continuing. - */ - - spin_lock_irqsave(&devc->lock,flags); - codec_dma_bits = sscape_read(devc, GA_CDCFG_REG); - - if (devc->dma_allocated == 0) - devc->dma_allocated = 1; - - spin_unlock_irqrestore(&devc->lock,flags); - - sscape_write(devc, GA_HMCTL_REG, - (temp = sscape_read(devc, GA_HMCTL_REG)) & 0x3f); /*Reset */ - - for (timeout_val = 10000; timeout_val > 0; timeout_val--) - sscape_read(devc, GA_HMCTL_REG); /* Delay */ - - /* Take board out of reset */ - sscape_write(devc, GA_HMCTL_REG, - (temp = sscape_read(devc, GA_HMCTL_REG)) | 0x80); - } - /* - * Transfer one code block using DMA - */ - if (audio_devs[devc->codec_audiodev]->dmap_out->raw_buf == NULL) - { - printk(KERN_WARNING "soundscape: DMA buffer not available\n"); - return 0; - } - memcpy(audio_devs[devc->codec_audiodev]->dmap_out->raw_buf, block, size); - - spin_lock_irqsave(&devc->lock,flags); - - /******** INTERRUPTS DISABLED NOW ********/ - - do_dma(devc, SSCAPE_DMA_A, - audio_devs[devc->codec_audiodev]->dmap_out->raw_buf_phys, - size, DMA_MODE_WRITE); - - /* - * Wait until transfer completes. - */ - - done = 0; - timeout_val = 30; - while (!done && timeout_val-- > 0) - { - int resid; - - if (HZ / 50) - sleep(HZ / 50); - clear_dma_ff(devc->dma); - if ((resid = get_dma_residue(devc->dma)) == 0) - done = 1; - } - - spin_unlock_irqrestore(&devc->lock,flags); - if (!done) - return 0; - - if (flag & CPF_LAST) - { - /* - * Take the board out of reset - */ - outb((0x00), PORT(HOST_CTRL)); - outb((0x00), PORT(MIDI_CTRL)); - - temp = sscape_read(devc, GA_HMCTL_REG); - temp |= 0x40; - sscape_write(devc, GA_HMCTL_REG, temp); /* Kickstart the board */ - - /* - * Wait until the ODB wakes up - */ - spin_lock_irqsave(&devc->lock,flags); - done = 0; - timeout_val = 5 * HZ; - while (!done && timeout_val-- > 0) - { - unsigned char x; - - sleep(1); - x = inb(PORT(HOST_DATA)); - if (x == 0xff || x == 0xfe) /* OBP startup acknowledge */ - { - DDB(printk("Soundscape: Acknowledge = %x\n", x)); - done = 1; - } - } - sscape_write(devc, GA_CDCFG_REG, codec_dma_bits); - - spin_unlock_irqrestore(&devc->lock,flags); - if (!done) - { - printk(KERN_ERR "soundscape: The OBP didn't respond after code download\n"); - return 0; - } - spin_lock_irqsave(&devc->lock,flags); - done = 0; - timeout_val = 5 * HZ; - while (!done && timeout_val-- > 0) - { - sleep(1); - if (inb(PORT(HOST_DATA)) == 0xfe) /* Host startup acknowledge */ - done = 1; - } - spin_unlock_irqrestore(&devc->lock,flags); - if (!done) - { - printk(KERN_ERR "soundscape: OBP Initialization failed.\n"); - return 0; - } - printk(KERN_INFO "SoundScape board initialized OK\n"); - set_control(devc, CTL_MASTER_VOL, 100); - set_control(devc, CTL_SYNTH_VOL, 100); - -#ifdef SSCAPE_DEBUG3 - /* - * Temporary debugging aid. Print contents of the registers after - * downloading the code. - */ - { - int i; - - for (i = 0; i < 13; i++) - printk("I%d = %02x (new value)\n", i, sscape_read(devc, i)); - } -#endif - - } - return 1; -} - -static int download_boot_block(void *dev_info, copr_buffer * buf) -{ - if (buf->len <= 0 || buf->len > sizeof(buf->data)) - return -EINVAL; - - if (!sscape_download_boot(devc, buf->data, buf->len, buf->flags)) - { - printk(KERN_ERR "soundscape: Unable to load microcode block to the OBP.\n"); - return -EIO; - } - return 0; -} - -static int sscape_coproc_ioctl(void *dev_info, unsigned int cmd, void __user *arg, int local) -{ - copr_buffer *buf; - int err; - - switch (cmd) - { - case SNDCTL_COPR_RESET: - sscape_coproc_reset(dev_info); - return 0; - - case SNDCTL_COPR_LOAD: - buf = (copr_buffer *) vmalloc(sizeof(copr_buffer)); - if (buf == NULL) - return -ENOSPC; - if (copy_from_user(buf, arg, sizeof(copr_buffer))) - { - vfree(buf); - return -EFAULT; - } - err = download_boot_block(dev_info, buf); - vfree(buf); - return err; - - default: - return -EINVAL; - } -} - -static coproc_operations sscape_coproc_operations = -{ - "SoundScape M68K", - THIS_MODULE, - sscape_coproc_open, - sscape_coproc_close, - sscape_coproc_ioctl, - sscape_coproc_reset, - &adev_info -}; - -static struct resource *sscape_ports; -static int sscape_is_pnp; - -static void __init attach_sscape(struct address_info *hw_config) -{ -#ifndef SSCAPE_REGS - /* - * Config register values for Spea/V7 Media FX and Ensoniq S-2000. - * These values are card - * dependent. If you have another SoundScape based card, you have to - * find the correct values. Do the following: - * - Compile this driver with SSCAPE_DEBUG1 defined. - * - Shut down and power off your machine. - * - Boot with DOS so that the SSINIT.EXE program is run. - * - Warm boot to {Linux|SYSV|BSD} and write down the lines displayed - * when detecting the SoundScape. - * - Modify the following list to use the values printed during boot. - * Undefine the SSCAPE_DEBUG1 - */ -#define SSCAPE_REGS { \ -/* I0 */ 0x00, \ -/* I1 */ 0xf0, /* Note! Ignored. Set always to 0xf0 */ \ -/* I2 */ 0x20, /* Note! Ignored. Set always to 0x20 */ \ -/* I3 */ 0x20, /* Note! Ignored. Set always to 0x20 */ \ -/* I4 */ 0xf5, /* Ignored */ \ -/* I5 */ 0x10, \ -/* I6 */ 0x00, \ -/* I7 */ 0x2e, /* I7 MEM config A. Likely to vary between models */ \ -/* I8 */ 0x00, /* I8 MEM config B. Likely to vary between models */ \ -/* I9 */ 0x40 /* Ignored */ \ - } -#endif - - unsigned long flags; - static unsigned char regs[10] = SSCAPE_REGS; - - int i, irq_bits = 0xff; - - if (old_hardware) - { - valid_interrupts = valid_interrupts_old; - conf_printf("Ensoniq SoundScape (old)", hw_config); - } - else - conf_printf("Ensoniq SoundScape", hw_config); - - for (i = 0; i < 4; i++) - { - if (hw_config->irq == valid_interrupts[i]) - { - irq_bits = i; - break; - } - } - if (hw_config->irq > 15 || (regs[4] = irq_bits == 0xff)) - { - printk(KERN_ERR "Invalid IRQ%d\n", hw_config->irq); - release_region(devc->base, 2); - release_region(devc->base + 2, 6); - if (sscape_is_pnp) - release_region(devc->codec, 2); - return; - } - - if (!sscape_is_pnp) { - - spin_lock_irqsave(&devc->lock,flags); - /* Host interrupt enable */ - sscape_write(devc, 1, 0xf0); /* All interrupts enabled */ - /* DMA A status/trigger register */ - sscape_write(devc, 2, 0x20); /* DMA channel disabled */ - /* DMA B status/trigger register */ - sscape_write(devc, 3, 0x20); /* DMA channel disabled */ - /* Host interrupt config reg */ - sscape_write(devc, 4, 0xf0 | (irq_bits << 2) | irq_bits); - /* Don't destroy CD-ROM DMA config bits (0xc0) */ - sscape_write(devc, 5, (regs[5] & 0x3f) | (sscape_read(devc, 5) & 0xc0)); - /* CD-ROM config (WSS codec actually) */ - sscape_write(devc, 6, regs[6]); - sscape_write(devc, 7, regs[7]); - sscape_write(devc, 8, regs[8]); - /* Master control reg. Don't modify CR-ROM bits. Disable SB emul */ - sscape_write(devc, 9, (sscape_read(devc, 9) & 0xf0) | 0x08); - spin_unlock_irqrestore(&devc->lock,flags); - } -#ifdef SSCAPE_DEBUG2 - /* - * Temporary debugging aid. Print contents of the registers after - * changing them. - */ - { - int i; - - for (i = 0; i < 13; i++) - printk("I%d = %02x (new value)\n", i, sscape_read(devc, i)); - } -#endif - - if (probe_mpu401(hw_config, sscape_ports)) - hw_config->always_detect = 1; - hw_config->name = "SoundScape"; - - hw_config->irq *= -1; /* Negative value signals IRQ sharing */ - attach_mpu401(hw_config, THIS_MODULE); - hw_config->irq *= -1; /* Restore it */ - - if (hw_config->slots[1] != -1) /* The MPU driver installed itself */ - { - sscape_mididev = hw_config->slots[1]; - midi_devs[hw_config->slots[1]]->coproc = &sscape_coproc_operations; - } - sscape_write(devc, GA_INTENA_REG, 0x80); /* Master IRQ enable */ - devc->ok = 1; - devc->failed = 0; -} - -static int detect_ga(sscape_info * devc) -{ - unsigned char save; - - DDB(printk("Entered Soundscape detect_ga(%x)\n", devc->base)); - - /* - * First check that the address register of "ODIE" is - * there and that it has exactly 4 writable bits. - * First 4 bits - */ - - if ((save = inb(PORT(ODIE_ADDR))) & 0xf0) - { - DDB(printk("soundscape: Detect error A\n")); - return 0; - } - outb((0x00), PORT(ODIE_ADDR)); - if (inb(PORT(ODIE_ADDR)) != 0x00) - { - DDB(printk("soundscape: Detect error B\n")); - return 0; - } - outb((0xff), PORT(ODIE_ADDR)); - if (inb(PORT(ODIE_ADDR)) != 0x0f) - { - DDB(printk("soundscape: Detect error C\n")); - return 0; - } - outb((save), PORT(ODIE_ADDR)); - - /* - * Now verify that some indirect registers return zero on some bits. - * This may break the driver with some future revisions of "ODIE" but... - */ - - if (sscape_read(devc, 0) & 0x0c) - { - DDB(printk("soundscape: Detect error D (%x)\n", sscape_read(devc, 0))); - return 0; - } - if (sscape_read(devc, 1) & 0x0f) - { - DDB(printk("soundscape: Detect error E\n")); - return 0; - } - if (sscape_read(devc, 5) & 0x0f) - { - DDB(printk("soundscape: Detect error F\n")); - return 0; - } - return 1; -} - -static int sscape_read_host_ctrl(sscape_info* devc) -{ - return host_read(devc); -} - -static void sscape_write_host_ctrl2(sscape_info *devc, int a, int b) -{ - host_command2(devc, a, b); -} - -static int sscape_alloc_dma(sscape_info *devc) -{ - char *start_addr, *end_addr; - int dma_pagesize; - int sz, size; - struct page *page; - - if (devc->raw_buf != NULL) return 0; /* Already done */ - dma_pagesize = (devc->dma < 4) ? (64 * 1024) : (128 * 1024); - devc->raw_buf = NULL; - devc->buffsize = 8192*4; - if (devc->buffsize > dma_pagesize) devc->buffsize = dma_pagesize; - start_addr = NULL; - /* - * Now loop until we get a free buffer. Try to get smaller buffer if - * it fails. Don't accept smaller than 8k buffer for performance - * reasons. - */ - while (start_addr == NULL && devc->buffsize > PAGE_SIZE) { - for (sz = 0, size = PAGE_SIZE; size < devc->buffsize; sz++, size <<= 1); - devc->buffsize = PAGE_SIZE * (1 << sz); - start_addr = (char *) __get_free_pages(GFP_ATOMIC|GFP_DMA, sz); - if (start_addr == NULL) devc->buffsize /= 2; - } - - if (start_addr == NULL) { - printk(KERN_ERR "sscape pnp init error: Couldn't allocate DMA buffer\n"); - return 0; - } else { - /* make some checks */ - end_addr = start_addr + devc->buffsize - 1; - /* now check if it fits into the same dma-pagesize */ - - if (((long) start_addr & ~(dma_pagesize - 1)) != ((long) end_addr & ~(dma_pagesize - 1)) - || end_addr >= (char *) (MAX_DMA_ADDRESS)) { - printk(KERN_ERR "sscape pnp: Got invalid address 0x%lx for %db DMA-buffer\n", (long) start_addr, devc->buffsize); - return 0; - } - } - devc->raw_buf = start_addr; - devc->raw_buf_phys = virt_to_bus(start_addr); - - for (page = virt_to_page(start_addr); page <= virt_to_page(end_addr); page++) - SetPageReserved(page); - return 1; -} - -static void sscape_free_dma(sscape_info *devc) -{ - int sz, size; - unsigned long start_addr, end_addr; - struct page *page; - - if (devc->raw_buf == NULL) return; - for (sz = 0, size = PAGE_SIZE; size < devc->buffsize; sz++, size <<= 1); - start_addr = (unsigned long) devc->raw_buf; - end_addr = start_addr + devc->buffsize; - - for (page = virt_to_page(start_addr); page <= virt_to_page(end_addr); page++) - ClearPageReserved(page); - - free_pages((unsigned long) devc->raw_buf, sz); - devc->raw_buf = NULL; -} - -/* Intel version !!!!!!!!! */ - -static int sscape_start_dma(int chan, unsigned long physaddr, int count, int dma_mode) -{ - unsigned long flags; - - flags = claim_dma_lock(); - disable_dma(chan); - clear_dma_ff(chan); - set_dma_mode(chan, dma_mode); - set_dma_addr(chan, physaddr); - set_dma_count(chan, count); - enable_dma(chan); - release_dma_lock(flags); - return 0; -} - -static void sscape_pnp_start_dma(sscape_info* devc, int arg ) -{ - int reg; - if (arg == 0) reg = 2; - else reg = 3; - - sscape_write(devc, reg, sscape_read( devc, reg) | 0x01); - sscape_write(devc, reg, sscape_read( devc, reg) & 0xFE); -} - -static int sscape_pnp_wait_dma (sscape_info* devc, int arg ) -{ - int reg; - unsigned long i; - unsigned char d; - - if (arg == 0) reg = 2; - else reg = 3; - - sleep ( 1 ); - i = 0; - do { - d = sscape_read(devc, reg) & 1; - if ( d == 1) break; - i++; - } while (i < 500000); - d = sscape_read(devc, reg) & 1; - return d; -} - -static int sscape_pnp_alloc_dma(sscape_info* devc) -{ - /* printk(KERN_INFO "sscape: requesting dma\n"); */ - if (request_dma(devc -> dma, "sscape")) return 0; - /* printk(KERN_INFO "sscape: dma channel allocated\n"); */ - if (!sscape_alloc_dma(devc)) { - free_dma(devc -> dma); - return 0; - }; - return 1; -} - -static void sscape_pnp_free_dma(sscape_info* devc) -{ - sscape_free_dma( devc); - free_dma(devc -> dma ); - /* printk(KERN_INFO "sscape: dma released\n"); */ -} - -static int sscape_pnp_upload_file(sscape_info* devc, char* fn) -{ - int done = 0; - int timeout_val; - char* data,*dt; - int len,l; - unsigned long flags; - - sscape_write( devc, 9, sscape_read(devc, 9 ) & 0x3F ); - sscape_write( devc, 2, (devc -> dma << 4) | 0x80 ); - sscape_write( devc, 3, 0x20 ); - sscape_write( devc, 9, sscape_read( devc, 9 ) | 0x80 ); - - len = mod_firmware_load(fn, &data); - if (len == 0) { - printk(KERN_ERR "sscape: file not found: %s\n", fn); - return 0; - } - dt = data; - spin_lock_irqsave(&devc->lock,flags); - while ( len > 0 ) { - if (len > devc -> buffsize) l = devc->buffsize; - else l = len; - len -= l; - memcpy(devc->raw_buf, dt, l); dt += l; - sscape_start_dma(devc->dma, devc->raw_buf_phys, l, 0x48); - sscape_pnp_start_dma ( devc, 0 ); - if (sscape_pnp_wait_dma ( devc, 0 ) == 0) { - spin_unlock_irqrestore(&devc->lock,flags); - return 0; - } - } - - spin_unlock_irqrestore(&devc->lock,flags); - vfree(data); - - outb(0, devc -> base + 2); - outb(0, devc -> base); - - sscape_write ( devc, 9, sscape_read( devc, 9 ) | 0x40); - - timeout_val = 5 * HZ; - while (!done && timeout_val-- > 0) - { - unsigned char x; - sleep(1); - x = inb( devc -> base + 3); - if (x == 0xff || x == 0xfe) /* OBP startup acknowledge */ - { - //printk(KERN_ERR "Soundscape: Acknowledge = %x\n", x); - done = 1; - } - } - timeout_val = 5 * HZ; - done = 0; - while (!done && timeout_val-- > 0) - { - unsigned char x; - sleep(1); - x = inb( devc -> base + 3); - if (x == 0xfe) /* OBP startup acknowledge */ - { - //printk(KERN_ERR "Soundscape: Acknowledge = %x\n", x); - done = 1; - } - } - - if ( !done ) printk(KERN_ERR "soundscape: OBP Initialization failed.\n"); - - sscape_write( devc, 2, devc->ic_type == IC_ODIE ? 0x70 : 0x40); - sscape_write( devc, 3, (devc -> dma << 4) + 0x80); - return 1; -} - -static void __init sscape_pnp_init_hw(sscape_info* devc) -{ - unsigned char midi_irq = 0, sb_irq = 0; - unsigned i; - static char code_file_name[23] = "/sndscape/sndscape.cox"; - - int sscape_joystic_enable = 0x7f; - int sscape_mic_enable = 0; - int sscape_ext_midi = 0; - - if ( !sscape_pnp_alloc_dma(devc) ) { - printk(KERN_ERR "sscape: faild to allocate dma\n"); - return; - } - - for (i = 0; i < 4; i++) { - if ( devc -> irq == valid_interrupts[i] ) - midi_irq = i; - if ( devc -> codec_irq == valid_interrupts[i] ) - sb_irq = i; - } - - sscape_write( devc, 5, 0x50); - sscape_write( devc, 7, 0x2e); - sscape_write( devc, 8, 0x00); - - sscape_write( devc, 2, devc->ic_type == IC_ODIE ? 0x70 : 0x40); - sscape_write( devc, 3, ( devc -> dma << 4) | 0x80); - - sscape_write (devc, 4, 0xF0 | (midi_irq<<2) | midi_irq); - - i = 0x10; //sscape_read(devc, 9) & (devc->ic_type == IC_ODIE ? 0xf0 : 0xc0); - if (sscape_joystic_enable) i |= 8; - - sscape_write (devc, 9, i); - sscape_write (devc, 6, 0x80); - sscape_write (devc, 1, 0x80); - - if (devc -> codec_type == 2) { - sscape_pnp_write_codec( devc, 0x0C, 0x50); - sscape_pnp_write_codec( devc, 0x10, sscape_pnp_read_codec( devc, 0x10) & 0x3F); - sscape_pnp_write_codec( devc, 0x11, sscape_pnp_read_codec( devc, 0x11) | 0xC0); - sscape_pnp_write_codec( devc, 29, 0x20); - } - - if (sscape_pnp_upload_file(devc, "/sndscape/scope.cod") == 0 ) { - printk(KERN_ERR "sscape: faild to upload file /sndscape/scope.cod\n"); - sscape_pnp_free_dma(devc); - return; - } - - i = sscape_read_host_ctrl( devc ); - - if ( (i & 0x0F) > 7 ) { - printk(KERN_ERR "sscape: scope.cod faild\n"); - sscape_pnp_free_dma(devc); - return; - } - if ( i & 0x10 ) sscape_write( devc, 7, 0x2F); - code_file_name[21] = (char) ( i & 0x0F) + 0x30; - if (sscape_pnp_upload_file( devc, code_file_name) == 0) { - printk(KERN_ERR "sscape: faild to upload file %s\n", code_file_name); - sscape_pnp_free_dma(devc); - return; - } - - if (devc->ic_type != IC_ODIE) { - sscape_pnp_write_codec( devc, 10, (sscape_pnp_read_codec(devc, 10) & 0x7f) | - ( sscape_mic_enable == 0 ? 0x00 : 0x80) ); - } - sscape_write_host_ctrl2( devc, 0x84, 0x64 ); /* MIDI volume */ - sscape_write_host_ctrl2( devc, 0x86, 0x64 ); /* MIDI volume?? */ - sscape_write_host_ctrl2( devc, 0x8A, sscape_ext_midi); - - sscape_pnp_write_codec ( devc, 6, 0x3f ); //WAV_VOL - sscape_pnp_write_codec ( devc, 7, 0x3f ); //WAV_VOL - sscape_pnp_write_codec ( devc, 2, 0x1F ); //WD_CDXVOLL - sscape_pnp_write_codec ( devc, 3, 0x1F ); //WD_CDXVOLR - - if (devc -> codec_type == 1) { - sscape_pnp_write_codec ( devc, 4, 0x1F ); - sscape_pnp_write_codec ( devc, 5, 0x1F ); - sscape_write_host_ctrl2( devc, 0x88, sscape_mic_enable); - } else { - int t; - sscape_pnp_write_codec ( devc, 0x10, 0x1F << 1); - sscape_pnp_write_codec ( devc, 0x11, 0xC0 | (0x1F << 1)); - - t = sscape_pnp_read_codec( devc, 0x00) & 0xDF; - if ( (sscape_mic_enable == 0)) t |= 0; - else t |= 0x20; - sscape_pnp_write_codec ( devc, 0x00, t); - t = sscape_pnp_read_codec( devc, 0x01) & 0xDF; - if ( (sscape_mic_enable == 0) ) t |= 0; - else t |= 0x20; - sscape_pnp_write_codec ( devc, 0x01, t); - sscape_pnp_write_codec ( devc, 0x40 | 29 , 0x20); - outb(0, devc -> codec); - } - if (devc -> ic_type == IC_OPUS ) { - int i = sscape_read( devc, 9 ); - sscape_write( devc, 9, i | 3 ); - sscape_write( devc, 3, 0x40); - - if (request_region(0x228, 1, "sscape setup junk")) { - outb(0, 0x228); - release_region(0x228,1); - } - sscape_write( devc, 3, (devc -> dma << 4) | 0x80); - sscape_write( devc, 9, i ); - } - - host_close ( devc ); - sscape_pnp_free_dma(devc); -} - -static int __init detect_sscape_pnp(sscape_info* devc) -{ - long i, irq_bits = 0xff; - unsigned int d; - - DDB(printk("Entered detect_sscape_pnp(%x)\n", devc->base)); - - if (!request_region(devc->codec, 2, "sscape codec")) { - printk(KERN_ERR "detect_sscape_pnp: port %x is not free\n", devc->codec); - return 0; - } - - if ((inb(devc->base + 2) & 0x78) != 0) - goto fail; - - d = inb ( devc -> base + 4) & 0xF0; - if (d & 0x80) - goto fail; - - if (d == 0) { - devc->codec_type = 1; - devc->ic_type = IC_ODIE; - } else if ( (d & 0x60) != 0) { - devc->codec_type = 2; - devc->ic_type = IC_OPUS; - } else if ( (d & 0x40) != 0) { /* WTF? */ - devc->codec_type = 2; - devc->ic_type = IC_ODIE; - } else - goto fail; - - sscape_is_pnp = 1; - - outb(0xFA, devc -> base+4); - if ((inb( devc -> base+4) & 0x9F) != 0x0A) - goto fail; - outb(0xFE, devc -> base+4); - if ( (inb(devc -> base+4) & 0x9F) != 0x0E) - goto fail; - if ( (inb(devc -> base+5) & 0x9F) != 0x0E) - goto fail; - - if (devc->codec_type == 2) { - if (devc->codec != devc->base + 8) { - printk("soundscape warning: incorrect codec port specified\n"); - goto fail; - } - d = 0x10 | (sscape_read(devc, 9) & 0xCF); - sscape_write(devc, 9, d); - sscape_write(devc, 6, 0x80); - } else { - //todo: check codec is not base + 8 - } - - d = (sscape_read(devc, 9) & 0x3F) | 0xC0; - sscape_write(devc, 9, d); - - for (i = 0; i < 550000; i++) - if ( !(inb(devc -> codec) & 0x80) ) break; - - d = inb(devc -> codec); - if (d & 0x80) - goto fail; - if ( inb(devc -> codec + 2) == 0xFF) - goto fail; - - sscape_write(devc, 9, sscape_read(devc, 9) & 0x3F ); - - d = inb(devc -> codec) & 0x80; - if ( d == 0) { - printk(KERN_INFO "soundscape: hardware detected\n"); - valid_interrupts = valid_interrupts_new; - } else { - printk(KERN_INFO "soundscape: board looks like media fx\n"); - valid_interrupts = valid_interrupts_old; - old_hardware = 1; - } - - sscape_write( devc, 9, 0xC0 | (sscape_read(devc, 9) & 0x3F) ); - - for (i = 0; i < 550000; i++) - if ( !(inb(devc -> codec) & 0x80)) - break; - - sscape_pnp_init_hw(devc); - - for (i = 0; i < 4; i++) - { - if (devc->codec_irq == valid_interrupts[i]) { - irq_bits = i; - break; - } - } - sscape_write(devc, GA_INTENA_REG, 0x00); - sscape_write(devc, GA_DMACFG_REG, 0x50); - sscape_write(devc, GA_DMAA_REG, 0x70); - sscape_write(devc, GA_DMAB_REG, 0x20); - sscape_write(devc, GA_INTCFG_REG, 0xf0); - sscape_write(devc, GA_CDCFG_REG, 0x89 | (devc->dma << 4) | (irq_bits << 1)); - - sscape_pnp_write_codec( devc, 0, sscape_pnp_read_codec( devc, 0) | 0x20); - sscape_pnp_write_codec( devc, 0, sscape_pnp_read_codec( devc, 1) | 0x20); - - return 1; -fail: - release_region(devc->codec, 2); - return 0; -} - -static int __init probe_sscape(struct address_info *hw_config) -{ - devc->base = hw_config->io_base; - devc->irq = hw_config->irq; - devc->dma = hw_config->dma; - devc->osp = hw_config->osp; - -#ifdef SSCAPE_DEBUG1 - /* - * Temporary debugging aid. Print contents of the registers before - * changing them. - */ - { - int i; - - for (i = 0; i < 13; i++) - printk("I%d = %02x (old value)\n", i, sscape_read(devc, i)); - } -#endif - devc->failed = 1; - - sscape_ports = request_region(devc->base, 2, "mpu401"); - if (!sscape_ports) - return 0; - - if (!request_region(devc->base + 2, 6, "SoundScape")) { - release_region(devc->base, 2); - return 0; - } - - if (!detect_ga(devc)) { - if (detect_sscape_pnp(devc)) - return 1; - release_region(devc->base, 2); - release_region(devc->base + 2, 6); - return 0; - } - - if (old_hardware) /* Check that it's really an old Spea/Reveal card. */ - { - unsigned char tmp; - int cc; - - if (!((tmp = sscape_read(devc, GA_HMCTL_REG)) & 0xc0)) - { - sscape_write(devc, GA_HMCTL_REG, tmp | 0x80); - for (cc = 0; cc < 200000; ++cc) - inb(devc->base + ODIE_ADDR); - } - } - return 1; -} - -static int __init init_ss_ms_sound(struct address_info *hw_config) -{ - int i, irq_bits = 0xff; - int ad_flags = 0; - struct resource *ports; - - if (devc->failed) - { - printk(KERN_ERR "soundscape: Card not detected\n"); - return 0; - } - if (devc->ok == 0) - { - printk(KERN_ERR "soundscape: Invalid initialization order.\n"); - return 0; - } - for (i = 0; i < 4; i++) - { - if (hw_config->irq == valid_interrupts[i]) - { - irq_bits = i; - break; - } - } - if (irq_bits == 0xff) { - printk(KERN_ERR "soundscape: Invalid MSS IRQ%d\n", hw_config->irq); - return 0; - } - - if (old_hardware) - ad_flags = 0x12345677; /* Tell that we may have a CS4248 chip (Spea-V7 Media FX) */ - else if (sscape_is_pnp) - ad_flags = 0x87654321; /* Tell that we have a soundscape pnp with 1845 chip */ - - ports = request_region(hw_config->io_base, 4, "ad1848"); - if (!ports) { - printk(KERN_ERR "soundscape: ports busy\n"); - return 0; - } - - if (!ad1848_detect(ports, &ad_flags, hw_config->osp)) { - release_region(hw_config->io_base, 4); - return 0; - } - - if (!sscape_is_pnp) /*pnp is already setup*/ - { - /* - * Setup the DMA polarity. - */ - sscape_write(devc, GA_DMACFG_REG, 0x50); - - /* - * Take the gate-array off of the DMA channel. - */ - sscape_write(devc, GA_DMAB_REG, 0x20); - - /* - * Init the AD1848 (CD-ROM) config reg. - */ - sscape_write(devc, GA_CDCFG_REG, 0x89 | (hw_config->dma << 4) | (irq_bits << 1)); - } - - if (hw_config->irq == devc->irq) - printk(KERN_WARNING "soundscape: Warning! The WSS mode can't share IRQ with MIDI\n"); - - hw_config->slots[0] = ad1848_init( - sscape_is_pnp ? "SoundScape" : "SoundScape PNP", - ports, - hw_config->irq, - hw_config->dma, - hw_config->dma, - 0, - devc->osp, - THIS_MODULE); - - - if (hw_config->slots[0] != -1) /* The AD1848 driver installed itself */ - { - audio_devs[hw_config->slots[0]]->coproc = &sscape_coproc_operations; - devc->codec_audiodev = hw_config->slots[0]; - devc->my_audiodev = hw_config->slots[0]; - - /* Set proper routings here (what are they) */ - AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_LINE); - } - -#ifdef SSCAPE_DEBUG5 - /* - * Temporary debugging aid. Print contents of the registers - * after the AD1848 device has been initialized. - */ - { - int i; - - for (i = 0; i < 13; i++) - printk("I%d = %02x\n", i, sscape_read(devc, i)); - } -#endif - return 1; -} - -static void __exit unload_sscape(struct address_info *hw_config) -{ - release_region(devc->base + 2, 6); - unload_mpu401(hw_config); - if (sscape_is_pnp) - release_region(devc->codec, 2); -} - -static void __exit unload_ss_ms_sound(struct address_info *hw_config) -{ - ad1848_unload(hw_config->io_base, - hw_config->irq, - devc->dma, - devc->dma, - 0); - sound_unload_audiodev(hw_config->slots[0]); -} - -static struct address_info cfg; -static struct address_info cfg_mpu; - -static int __initdata spea = -1; -static int mss = 0; -static int __initdata dma = -1; -static int __initdata irq = -1; -static int __initdata io = -1; -static int __initdata mpu_irq = -1; -static int __initdata mpu_io = -1; - -module_param(dma, int, 0); -module_param(irq, int, 0); -module_param(io, int, 0); -module_param(spea, int, 0); /* spea=0/1 set the old_hardware */ -module_param(mpu_irq, int, 0); -module_param(mpu_io, int, 0); -module_param(mss, int, 0); - -static int __init init_sscape(void) -{ - printk(KERN_INFO "Soundscape driver Copyright (C) by Hannu Savolainen 1993-1996\n"); - - cfg.irq = irq; - cfg.dma = dma; - cfg.io_base = io; - - cfg_mpu.irq = mpu_irq; - cfg_mpu.io_base = mpu_io; - /* WEH - Try to get right dma channel */ - cfg_mpu.dma = dma; - - devc->codec = cfg.io_base; - devc->codec_irq = cfg.irq; - devc->codec_type = 0; - devc->ic_type = 0; - devc->raw_buf = NULL; - spin_lock_init(&devc->lock); - - if (cfg.dma == -1 || cfg.irq == -1 || cfg.io_base == -1) { - printk(KERN_ERR "DMA, IRQ, and IO port must be specified.\n"); - return -EINVAL; - } - - if (cfg_mpu.irq == -1 && cfg_mpu.io_base != -1) { - printk(KERN_ERR "MPU_IRQ must be specified if MPU_IO is set.\n"); - return -EINVAL; - } - - if(spea != -1) { - old_hardware = spea; - printk(KERN_INFO "Forcing %s hardware support.\n", - spea?"new":"old"); - } - if (probe_sscape(&cfg_mpu) == 0) - return -ENODEV; - - attach_sscape(&cfg_mpu); - - mss = init_ss_ms_sound(&cfg); - - return 0; -} - -static void __exit cleanup_sscape(void) -{ - if (mss) - unload_ss_ms_sound(&cfg); - unload_sscape(&cfg_mpu); -} - -module_init(init_sscape); -module_exit(cleanup_sscape); - -#ifndef MODULE -static int __init setup_sscape(char *str) -{ - /* io, irq, dma, mpu_io, mpu_irq */ - int ints[6]; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - io = ints[1]; - irq = ints[2]; - dma = ints[3]; - mpu_io = ints[4]; - mpu_irq = ints[5]; - - return 1; -} - -__setup("sscape=", setup_sscape); -#endif -MODULE_LICENSE("GPL"); ---------------------------------------------------------------------- Nie dla nich ciepla praca za biurkiem. 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[alsa-devel] [PATCH] ALSA: Cleanup redundant tests on unsigned
by Roel Kluin 30 Oct '09

30 Oct '09

The variables are unsigned so the test `>= 0' is always true, the `< 0' test always fails. In these cases the other part of the test catches wrapped values. In dac_audio_write() there does not occur a test for wrapped values, but the test appears redundant. Signed-off-by: Roel Kluin <roel.kluin(a)gmail.com> --- I think the test in dac_audio_write() can go, or should it change? sound/oss/sh_dac_audio.c | 3 --- sound/pci/ca0106/ca0106_proc.c | 4 ++-- sound/pci/ctxfi/ctatc.c | 2 +- sound/pci/emu10k1/emu10k1x.c | 3 +-- sound/pci/emu10k1/emuproc.c | 4 ++-- sound/pci/emu10k1/io.c | 2 +- sound/soc/codecs/tlv320aic23.c | 2 +- 7 files changed, 8 insertions(+), 12 deletions(-) diff --git a/sound/oss/sh_dac_audio.c b/sound/oss/sh_dac_audio.c index b2ed875..4153752 100644 --- a/sound/oss/sh_dac_audio.c +++ b/sound/oss/sh_dac_audio.c @@ -164,9 +164,6 @@ static ssize_t dac_audio_write(struct file *file, const char *buf, size_t count, int free; int nbytes; - if (count < 0) - return -EINVAL; - if (!count) { dac_audio_sync(); return 0; diff --git a/sound/pci/ca0106/ca0106_proc.c b/sound/pci/ca0106/ca0106_proc.c index c62b7d1..15523e6 100644 --- a/sound/pci/ca0106/ca0106_proc.c +++ b/sound/pci/ca0106/ca0106_proc.c @@ -304,7 +304,7 @@ static void snd_ca0106_proc_reg_write32(struct snd_info_entry *entry, while (!snd_info_get_line(buffer, line, sizeof(line))) { if (sscanf(line, "%x %x", &reg, &val) != 2) continue; - if ((reg < 0x40) && (reg >=0) && (val <= 0xffffffff) ) { + if (reg < 0x40 && val <= 0xffffffff) { spin_lock_irqsave(&emu->emu_lock, flags); outl(val, emu->port + (reg & 0xfffffffc)); spin_unlock_irqrestore(&emu->emu_lock, flags); @@ -405,7 +405,7 @@ static void snd_ca0106_proc_reg_write(struct snd_info_entry *entry, while (!snd_info_get_line(buffer, line, sizeof(line))) { if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3) continue; - if ((reg < 0x80) && (reg >=0) && (val <= 0xffffffff) && (channel_id >=0) && (channel_id <= 3) ) + if (reg < 0x80 && val <= 0xffffffff && channel_id <= 3) snd_ca0106_ptr_write(emu, reg, channel_id, val); } } diff --git a/sound/pci/ctxfi/ctatc.c b/sound/pci/ctxfi/ctatc.c index 7545464..cb65bd0 100644 --- a/sound/pci/ctxfi/ctatc.c +++ b/sound/pci/ctxfi/ctatc.c @@ -240,7 +240,7 @@ static int select_rom(unsigned int pitch) } else if (pitch == 0x02000000) { /* pitch == 2 */ return 3; - } else if (pitch >= 0x0 && pitch <= 0x08000000) { + } else if (pitch <= 0x08000000) { /* 0 <= pitch <= 8 */ return 0; } else { diff --git a/sound/pci/emu10k1/emu10k1x.c b/sound/pci/emu10k1/emu10k1x.c index 36e08bd..6b8ae7b 100644 --- a/sound/pci/emu10k1/emu10k1x.c +++ b/sound/pci/emu10k1/emu10k1x.c @@ -1040,8 +1040,7 @@ static void snd_emu10k1x_proc_reg_write(struct snd_info_entry *entry, if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3) continue; - if ((reg < 0x49) && (reg >= 0) && (val <= 0xffffffff) - && (channel_id >= 0) && (channel_id <= 2) ) + if (reg < 0x49 && val <= 0xffffffff && channel_id <= 2) snd_emu10k1x_ptr_write(emu, reg, channel_id, val); } } diff --git a/sound/pci/emu10k1/emuproc.c b/sound/pci/emu10k1/emuproc.c index 216f974..baa7cd5 100644 --- a/sound/pci/emu10k1/emuproc.c +++ b/sound/pci/emu10k1/emuproc.c @@ -451,7 +451,7 @@ static void snd_emu_proc_io_reg_write(struct snd_info_entry *entry, while (!snd_info_get_line(buffer, line, sizeof(line))) { if (sscanf(line, "%x %x", &reg, &val) != 2) continue; - if ((reg < 0x40) && (reg >= 0) && (val <= 0xffffffff) ) { + if (reg < 0x40 && val <= 0xffffffff) { spin_lock_irqsave(&emu->emu_lock, flags); outl(val, emu->port + (reg & 0xfffffffc)); spin_unlock_irqrestore(&emu->emu_lock, flags); @@ -527,7 +527,7 @@ static void snd_emu_proc_ptr_reg_write(struct snd_info_entry *entry, while (!snd_info_get_line(buffer, line, sizeof(line))) { if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3) continue; - if ((reg < 0xa0) && (reg >= 0) && (val <= 0xffffffff) && (channel_id >= 0) && (channel_id <= 3) ) + if (reg < 0xa0 && val <= 0xffffffff && channel_id <= 3) snd_ptr_write(emu, iobase, reg, channel_id, val); } } diff --git a/sound/pci/emu10k1/io.c b/sound/pci/emu10k1/io.c index c1a5aa1..5ef7080 100644 --- a/sound/pci/emu10k1/io.c +++ b/sound/pci/emu10k1/io.c @@ -256,7 +256,7 @@ int snd_emu1010_fpga_write(struct snd_emu10k1 * emu, u32 reg, u32 value) if (reg > 0x3f) return 1; reg += 0x40; /* 0x40 upwards are registers. */ - if (value < 0 || value > 0x3f) /* 0 to 0x3f are values */ + if (value > 0x3f) /* 0 to 0x3f are values */ return 1; spin_lock_irqsave(&emu->emu_lock, flags); outl(reg, emu->port + A_IOCFG); diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c index 0b8dcb5..35606ae 100644 --- a/sound/soc/codecs/tlv320aic23.c +++ b/sound/soc/codecs/tlv320aic23.c @@ -85,7 +85,7 @@ static int tlv320aic23_write(struct snd_soc_codec *codec, unsigned int reg, * of data into val */ - if ((reg < 0 || reg > 9) && (reg != 15)) { + if (reg > 9 && reg != 15) { printk(KERN_WARNING "%s Invalid register R%u\n", __func__, reg); return -1; }

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Re: [alsa-devel] [patch] ALSA: VIA HDA: Add support for VT1818S
by Takashi Iwai 30 Oct '09

30 Oct '09

At Tue, 20 Oct 2009 13:18:04 +0800, lydiawang wrote: > > From: Lydia Wang <lydiawang(a)viatech.com.cn> > Subject: ALSA: VIA HDA: Add support for VT1818S. > > Add support for VT1818S codec, which is similiar with VT1708S. > > Signed-off-by: Lydia Wang <lydiawang(a)viatech.com.cn> Thanks, applied now. BTW, you don't have to log your each change in the source code like: > /* 2009-04-14 Lydai Wang Add support for VT1828S and VT2020 */ > /* 2009-07-08 Lydia Wang Add support for VT2002P */ > /* 2009-07-21 Lydia Wang Add support for VT1812 */ > +/* 2009-09-19 Lydia Wang Add support for VT1818S */ Each change is recorded in GIT log. Takashi

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[alsa-devel] [PATCH 2/14] sound: Move dereference after NULL test and drop unnecessary NULL tests
by Julia Lawall 30 Oct '09

30 Oct '09

From: Julia Lawall <julia(a)diku.dk> In pcm.c, if the NULL test on pcm is needed, then the dereference should be after the NULL test. In dummy.c and ali5451.c, the context of the calls to snd_card_dummy_new_mixer and snd_ali_free_voice show that dummy and pvoice, respectively cannot be NULL. A simplified version of the semantic match that detects this problem is as follows (http://coccinelle.lip6.fr/): // <smpl> @match exists@ expression x, E; identifier fld; @@ * x->fld ... when != $x = E\|&x$ * x == NULL // </smpl> Signed-off-by: Julia Lawall <julia(a)diku.dk> --- sound/core/pcm.c | 5 +++-- sound/drivers/dummy.c | 2 -- sound/pci/ali5451/ali5451.c | 2 +- diff --git a/sound/core/pcm.c b/sound/core/pcm.c index 0c14401..c69c60b 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -953,11 +953,12 @@ static int snd_pcm_dev_register(struct snd_device *device) struct snd_pcm_substream *substream; struct snd_pcm_notify *notify; char str[16]; - struct snd_pcm *pcm = device->device_data; + struct snd_pcm *pcm; struct device *dev; - if (snd_BUG_ON(!pcm || !device)) + if (snd_BUG_ON(!device || !device->device_data)) return -ENXIO; + pcm = device->device_data; mutex_lock(&register_mutex); err = snd_pcm_add(pcm); if (err) { diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c index 6ba066c..146ef00 100644 --- a/sound/drivers/dummy.c +++ b/sound/drivers/dummy.c @@ -808,8 +808,6 @@ static int __devinit snd_card_dummy_new_mixer(struct snd_dummy *dummy) unsigned int idx; int err; - if (snd_BUG_ON(!dummy)) - return -EINVAL; spin_lock_init(&dummy->mixer_lock); strcpy(card->mixername, "Dummy Mixer"); diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c index b458d20..aaf4da6 100644 --- a/sound/pci/ali5451/ali5451.c +++ b/sound/pci/ali5451/ali5451.c @@ -973,7 +973,7 @@ static void snd_ali_free_voice(struct snd_ali * codec, void *private_data; snd_ali_printk("free_voice: channel=%d\n",pvoice->number); - if (pvoice == NULL || !pvoice->use) + if (!pvoice->use) return; snd_ali_clear_voices(codec, pvoice->number, pvoice->number); spin_lock_irq(&codec->voice_alloc);

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[alsa-devel] ASoC updates for 2.6.32
by Mark Brown 30 Oct '09

30 Oct '09

Welcome back! There's a couple of small updates below, one is just enhanced help text and the other fixes support for basic AC97 devices. The following changes since commit 8e8b2d676f3f7c1246b108793fb5690e6c6fcd26: Eero Nurkkala (1): ASoC: Serialize access to dapm_power_widgets() are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6.git for-2.6.32 Barry Song (1): ASoC: Fix possible codec_dai->ops NULL pointer problems Janusz Krzysztofik (1): ASoC: Amstrad Delta: add info about the line discipline requirement to Kconfig help text sound/soc/omap/Kconfig | 13 ++++++++++++- sound/soc/soc-core.c | 11 ++++++++--- 2 files changed, 20 insertions(+), 4 deletions(-)

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[alsa-devel] ASoC update for 2.6.32
by Mark Brown 30 Oct '09

30 Oct '09

The following changes since commit 8e8b2d676f3f7c1246b108793fb5690e6c6fcd26: Eero Nurkkala (1): ASoC: Serialize access to dapm_power_widgets() are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6.git for-2.6.32 Barry Song (1): ASoC: Fix possible codec_dai->ops NULL pointer problems sound/soc/soc-core.c | 11 ++++++++--- 1 files changed, 8 insertions(+), 3 deletions(-)

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[alsa-devel] [PATCH 00/11] Intel IbexPeak HDMI codec support
by Wu Fengguang 30 Oct '09

30 Oct '09

Hi Takashi, This series adds support for the Intel IbexPeak HDMI codec, which can connect up to 3 monitors and support 2 independant A/V pipes. The patches are tested OK on IbexPeak and G45. DisplayPort is also working with another in-house KMS patch. However we have not tested dual monitor configurations (which should be rare for now). Thanks, Fengguang

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[alsa-devel] [PATCH] ASoC: sh: FSI: Remove DMA support
by Kuninori Morimoto 30 Oct '09

30 Oct '09

SuperH FSI device have the hardware limitation to use DMA. If DMA is used, LCD output will be broken. Maybe there are some solution. But I don't know how to do it now. This patch remove DMA support and use soft transfer. Signed-off-by: Kuninori Morimoto <morimoto.kuninori(a)renesas.com> --- sound/soc/sh/Kconfig | 1 - sound/soc/sh/fsi.c | 141 +++++++------------------------------------------- 2 files changed, 20 insertions(+), 122 deletions(-) diff --git a/sound/soc/sh/Kconfig b/sound/soc/sh/Kconfig index e7e8297..8072a6d 100644 --- a/sound/soc/sh/Kconfig +++ b/sound/soc/sh/Kconfig @@ -23,7 +23,6 @@ config SND_SOC_SH4_SSI config SND_SOC_SH4_FSI tristate "SH4 FSI support" depends on CPU_SUBTYPE_SH7724 - select SH_DMA help This option enables FSI sound support diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c index 4412324..9742a28 100644 --- a/sound/soc/sh/fsi.c +++ b/sound/soc/sh/fsi.c @@ -26,8 +26,6 @@ #include <sound/pcm_params.h> #include <sound/sh_fsi.h> #include <asm/atomic.h> -#include <asm/dma.h> -#include <asm/dma-sh.h> #define DO_FMT 0x0000 #define DOFF_CTL 0x0004 @@ -97,7 +95,6 @@ struct fsi_priv { int fifo_max; int chan; - int dma_chan; int byte_offset; int period_len; @@ -308,62 +305,6 @@ static int fsi_get_fifo_residue(struct fsi_priv *fsi, int is_play) return residue; } -static int fsi_get_residue(struct fsi_priv *fsi, int is_play) -{ - int residue; - int width; - struct snd_pcm_runtime *runtime; - - runtime = fsi->substream->runtime; - - /* get 1 channel data width */ - width = frames_to_bytes(runtime, 1) / fsi->chan; - - if (2 == width) - residue = fsi_get_fifo_residue(fsi, is_play); - else - residue = get_dma_residue(fsi->dma_chan); - - return residue; -} - -/************************************************************************ - - - basic dma function - - -************************************************************************/ -#define PORTA_DMA 0 -#define PORTB_DMA 1 - -static int fsi_get_dma_chan(void) -{ - if (0 != request_dma(PORTA_DMA, "fsia")) - return -EIO; - - if (0 != request_dma(PORTB_DMA, "fsib")) { - free_dma(PORTA_DMA); - return -EIO; - } - - master->fsia.dma_chan = PORTA_DMA; - master->fsib.dma_chan = PORTB_DMA; - - return 0; -} - -static void fsi_free_dma_chan(void) -{ - dma_wait_for_completion(PORTA_DMA); - dma_wait_for_completion(PORTB_DMA); - free_dma(PORTA_DMA); - free_dma(PORTB_DMA); - - master->fsia.dma_chan = -1; - master->fsib.dma_chan = -1; -} - /************************************************************************ @@ -435,44 +376,6 @@ static void fsi_soft_all_reset(void) mdelay(10); } -static void fsi_16data_push(struct fsi_priv *fsi, - struct snd_pcm_runtime *runtime, - int send) -{ - u16 *dma_start; - u32 snd; - int i; - - /* get dma start position for FSI */ - dma_start = (u16 *)runtime->dma_area; - dma_start += fsi->byte_offset / 2; - - /* - * soft dma - * FSI can not use DMA when 16bpp - */ - for (i = 0; i < send; i++) { - snd = (u32)dma_start[i]; - fsi_reg_write(fsi, DODT, snd << 8); - } -} - -static void fsi_32data_push(struct fsi_priv *fsi, - struct snd_pcm_runtime *runtime, - int send) -{ - u32 *dma_start; - - /* get dma start position for FSI */ - dma_start = (u32 *)runtime->dma_area; - dma_start += fsi->byte_offset / 4; - - dma_wait_for_completion(fsi->dma_chan); - dma_configure_channel(fsi->dma_chan, (SM_INC|0x400|TS_32|TM_BUR)); - dma_write(fsi->dma_chan, (u32)dma_start, - (u32)(fsi->base + DODT), send * 4); -} - /* playback interrupt */ static int fsi_data_push(struct fsi_priv *fsi) { @@ -481,6 +384,8 @@ static int fsi_data_push(struct fsi_priv *fsi) int send; int fifo_free; int width; + u8 *start; + int i; if (!fsi || !fsi->substream || @@ -515,12 +420,22 @@ static int fsi_data_push(struct fsi_priv *fsi) if (fifo_free < send) send = fifo_free; - if (2 == width) - fsi_16data_push(fsi, runtime, send); - else if (4 == width) - fsi_32data_push(fsi, runtime, send); - else + start = runtime->dma_area; + start += fsi->byte_offset; + + switch (width) { + case 2: + for (i = 0; i < send; i++) + fsi_reg_write(fsi, DODT, + ((u32)*((u16 *)start + i) << 8)); + break; + case 4: + for (i = 0; i < send; i++) + fsi_reg_write(fsi, DODT, *((u32 *)start + i)); + break; + default: return -EINVAL; + } fsi->byte_offset += send * width; @@ -664,8 +579,6 @@ static int fsi_dai_startup(struct snd_pcm_substream *substream, } fsi_reg_write(fsi, reg, data); - dev_dbg(dai->dev, "use %s format (%d channel) use %d DMAC\n", - msg, fsi->chan, fsi->dma_chan); /* * clear clk reset if master mode @@ -780,10 +693,9 @@ static snd_pcm_uframes_t fsi_pointer(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct fsi_priv *fsi = fsi_get(substream); - int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; long location; - location = (fsi->byte_offset - 1) - fsi_get_residue(fsi, is_play); + location = (fsi->byte_offset - 1); if (location < 0) location = 0; @@ -912,22 +824,13 @@ static int fsi_probe(struct platform_device *pdev) master->fsia.base = master->base; master->fsib.base = master->base + 0x40; - master->fsia.dma_chan = -1; - master->fsib.dma_chan = -1; - - ret = fsi_get_dma_chan(); - if (ret < 0) { - dev_err(&pdev->dev, "cannot get dma api\n"); - goto exit_iounmap; - } - /* FSI is based on SPU mstp */ snprintf(clk_name, sizeof(clk_name), "spu%d", pdev->id); master->clk = clk_get(NULL, clk_name); if (IS_ERR(master->clk)) { dev_err(&pdev->dev, "cannot get %s mstp\n", clk_name); ret = -EIO; - goto exit_free_dma; + goto exit_iounmap; } fsi_soc_dai[0].dev = &pdev->dev; @@ -938,7 +841,7 @@ static int fsi_probe(struct platform_device *pdev) ret = request_irq(irq, &fsi_interrupt, IRQF_DISABLED, "fsi", master); if (ret) { dev_err(&pdev->dev, "irq request err\n"); - goto exit_free_dma; + goto exit_iounmap; } ret = snd_soc_register_platform(&fsi_soc_platform); @@ -951,8 +854,6 @@ static int fsi_probe(struct platform_device *pdev) exit_free_irq: free_irq(irq, master); -exit_free_dma: - fsi_free_dma_chan(); exit_iounmap: iounmap(master->base); exit_kfree: @@ -969,8 +870,6 @@ static int fsi_remove(struct platform_device *pdev) clk_put(master->clk); - fsi_free_dma_chan(); - free_irq(master->irq, master); iounmap(master->base); -- 1.6.0.4

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