From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- sound/pcmcia/pdaudiocf/Makefile | 8 + sound/pcmcia/pdaudiocf/pdaudiocf.c | 404 ++++++++++++++++++++++++++++++++ sound/pcmcia/pdaudiocf/pdaudiocf.h | 145 ++++++++++++ sound/pcmcia/pdaudiocf/pdaudiocf_core.c | 291 +++++++++++++++++++++++ sound/pcmcia/pdaudiocf/pdaudiocf_irq.c | 325 +++++++++++++++++++++++++ sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c | 361 ++++++++++++++++++++++++++++ 6 files changed, 1534 insertions(+) create mode 100644 sound/pcmcia/pdaudiocf/Makefile create mode 100644 sound/pcmcia/pdaudiocf/pdaudiocf.c create mode 100644 sound/pcmcia/pdaudiocf/pdaudiocf.h create mode 100644 sound/pcmcia/pdaudiocf/pdaudiocf_core.c create mode 100644 sound/pcmcia/pdaudiocf/pdaudiocf_irq.c create mode 100644 sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c (limited to 'sound/pcmcia/pdaudiocf') diff --git a/sound/pcmcia/pdaudiocf/Makefile b/sound/pcmcia/pdaudiocf/Makefile new file mode 100644 index 00000000000..6e194f9b50e --- /dev/null +++ b/sound/pcmcia/pdaudiocf/Makefile @@ -0,0 +1,8 @@ +# +# Makefile for ALSA +# Copyright (c) 2004 by Jaroslav Kysela +# + +snd-pdaudiocf-objs := pdaudiocf.o pdaudiocf_core.o pdaudiocf_irq.o pdaudiocf_pcm.o + +obj-$(CONFIG_SND_PDAUDIOCF) += snd-pdaudiocf.o diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf.c b/sound/pcmcia/pdaudiocf/pdaudiocf.c new file mode 100644 index 00000000000..f72c81cc995 --- /dev/null +++ b/sound/pcmcia/pdaudiocf/pdaudiocf.c @@ -0,0 +1,404 @@ +/* + * Driver for Sound Core PDAudioCF soundcard + * + * Copyright (c) 2003 by Jaroslav Kysela + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include "pdaudiocf.h" +#include +#include + +/* + */ + +#define CARD_NAME "PDAudio-CF" + +MODULE_AUTHOR("Jaroslav Kysela "); +MODULE_DESCRIPTION("Sound Core " CARD_NAME); +MODULE_LICENSE("GPL"); +MODULE_SUPPORTED_DEVICE("{{Sound Core," CARD_NAME "}}"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ +static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */ + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard."); + +/* + */ + +static dev_info_t dev_info = "snd-pdaudiocf"; +static snd_card_t *card_list[SNDRV_CARDS]; +static dev_link_t *dev_list; + +/* + * prototypes + */ +static void pdacf_config(dev_link_t *link); +static int pdacf_event(event_t event, int priority, event_callback_args_t *args); +static void snd_pdacf_detach(dev_link_t *link); + +static void pdacf_release(dev_link_t *link) +{ + if (link->state & DEV_CONFIG) { + /* release cs resources */ + pcmcia_release_configuration(link->handle); + pcmcia_release_io(link->handle, &link->io); + pcmcia_release_irq(link->handle, &link->irq); + link->state &= ~DEV_CONFIG; + } +} + +/* + * destructor + */ +static int snd_pdacf_free(pdacf_t *pdacf) +{ + dev_link_t *link = &pdacf->link; + + pdacf_release(link); + + /* Break the link with Card Services */ + if (link->handle) + pcmcia_deregister_client(link->handle); + + card_list[pdacf->index] = NULL; + pdacf->card = NULL; + + kfree(pdacf); + return 0; +} + +static int snd_pdacf_dev_free(snd_device_t *device) +{ + pdacf_t *chip = device->device_data; + return snd_pdacf_free(chip); +} + +/* + * snd_pdacf_attach - attach callback for cs + */ +static dev_link_t *snd_pdacf_attach(void) +{ + client_reg_t client_reg; /* Register with cardmgr */ + dev_link_t *link; /* Info for cardmgr */ + int i, ret; + pdacf_t *pdacf; + snd_card_t *card; + static snd_device_ops_t ops = { + .dev_free = snd_pdacf_dev_free, + }; + + snd_printdd(KERN_DEBUG "pdacf_attach called\n"); + /* find an empty slot from the card list */ + for (i = 0; i < SNDRV_CARDS; i++) { + if (! card_list[i]) + break; + } + if (i >= SNDRV_CARDS) { + snd_printk(KERN_ERR "pdacf: too many cards found\n"); + return NULL; + } + if (! enable[i]) + return NULL; /* disabled explicitly */ + + /* ok, create a card instance */ + card = snd_card_new(index[i], id[i], THIS_MODULE, 0); + if (card == NULL) { + snd_printk(KERN_ERR "pdacf: cannot create a card instance\n"); + return NULL; + } + + pdacf = snd_pdacf_create(card); + if (! pdacf) + return NULL; + + if (snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops) < 0) { + kfree(pdacf); + snd_card_free(card); + return NULL; + } + + pdacf->index = i; + card_list[i] = card; + + link = &pdacf->link; + link->priv = pdacf; + + link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; + link->io.NumPorts1 = 16; + + link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT | IRQ_FORCED_PULSE; + // link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_FIRST_SHARED; + + link->irq.IRQInfo1 = 0 /* | IRQ_LEVEL_ID */; + link->irq.Handler = pdacf_interrupt; + link->irq.Instance = pdacf; + link->conf.Attributes = CONF_ENABLE_IRQ; + link->conf.IntType = INT_MEMORY_AND_IO; + link->conf.ConfigIndex = 1; + link->conf.Present = PRESENT_OPTION; + + /* Chain drivers */ + link->next = dev_list; + dev_list = link; + + /* Register with Card Services */ + client_reg.dev_info = &dev_info; + client_reg.EventMask = + CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL +#ifdef CONFIG_PM + | CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET + | CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME +#endif + ; + client_reg.event_handler = &pdacf_event; + client_reg.Version = 0x0210; + client_reg.event_callback_args.client_data = link; + + ret = pcmcia_register_client(&link->handle, &client_reg); + if (ret != CS_SUCCESS) { + cs_error(link->handle, RegisterClient, ret); + snd_pdacf_detach(link); + return NULL; + } + + return link; +} + + +/** + * snd_pdacf_assign_resources - initialize the hardware and card instance. + * @port: i/o port for the card + * @irq: irq number for the card + * + * this function assigns the specified port and irq, boot the card, + * create pcm and control instances, and initialize the rest hardware. + * + * returns 0 if successful, or a negative error code. + */ +static int snd_pdacf_assign_resources(pdacf_t *pdacf, int port, int irq) +{ + int err; + snd_card_t *card = pdacf->card; + + snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq); + pdacf->port = port; + pdacf->irq = irq; + pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED; + + err = snd_pdacf_ak4117_create(pdacf); + if (err < 0) + return err; + + strcpy(card->driver, "PDAudio-CF"); + sprintf(card->shortname, "Core Sound %s", card->driver); + sprintf(card->longname, "%s at 0x%x, irq %i", + card->shortname, port, irq); + + err = snd_pdacf_pcm_new(pdacf); + if (err < 0) + return err; + + snd_card_set_pm_callback(card, snd_pdacf_suspend, snd_pdacf_resume, pdacf); + + if ((err = snd_card_register(card)) < 0) + return err; + + return 0; +} + + +/* + * snd_pdacf_detach - detach callback for cs + */ +static void snd_pdacf_detach(dev_link_t *link) +{ + pdacf_t *chip = link->priv; + + snd_printdd(KERN_DEBUG "pdacf_detach called\n"); + /* Remove the interface data from the linked list */ + { + dev_link_t **linkp; + /* Locate device structure */ + for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) + if (*linkp == link) + break; + if (*linkp) + *linkp = link->next; + } + if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED) + snd_pdacf_powerdown(chip); + chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */ + snd_card_disconnect(chip->card); + snd_card_free_in_thread(chip->card); +} + +/* + * configuration callback + */ + +#define CS_CHECK(fn, ret) \ +do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) + +static void pdacf_config(dev_link_t *link) +{ + client_handle_t handle = link->handle; + pdacf_t *pdacf = link->priv; + tuple_t tuple; + cisparse_t *parse = NULL; + config_info_t conf; + u_short buf[32]; + int last_fn, last_ret; + + snd_printdd(KERN_DEBUG "pdacf_config called\n"); + parse = kmalloc(sizeof(*parse), GFP_KERNEL); + if (! parse) { + snd_printk(KERN_ERR "pdacf_config: cannot allocate\n"); + return; + } + tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; + tuple.Attributes = 0; + tuple.TupleData = (cisdata_t *)buf; + tuple.TupleDataMax = sizeof(buf); + tuple.TupleOffset = 0; + tuple.DesiredTuple = CISTPL_CONFIG; + CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); + CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); + CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, parse)); + link->conf.ConfigBase = parse->config.base; + link->conf.ConfigIndex = 0x5; + kfree(parse); + + CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf)); + link->conf.Vcc = conf.Vcc; + + /* Configure card */ + link->state |= DEV_CONFIG; + + CS_CHECK(RequestIO, pcmcia_request_io(handle, &link->io)); + CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq)); + CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf)); + + if (snd_pdacf_assign_resources(pdacf, link->io.BasePort1, link->irq.AssignedIRQ) < 0) + goto failed; + + link->dev = &pdacf->node; + link->state &= ~DEV_CONFIG_PENDING; + return; + +cs_failed: + cs_error(link->handle, last_fn, last_ret); +failed: + pcmcia_release_configuration(link->handle); + pcmcia_release_io(link->handle, &link->io); + pcmcia_release_irq(link->handle, &link->irq); +} + +/* + * event callback + */ +static int pdacf_event(event_t event, int priority, event_callback_args_t *args) +{ + dev_link_t *link = args->client_data; + pdacf_t *chip = link->priv; + + switch (event) { + case CS_EVENT_CARD_REMOVAL: + snd_printdd(KERN_DEBUG "CARD_REMOVAL..\n"); + link->state &= ~DEV_PRESENT; + if (link->state & DEV_CONFIG) { + chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; + } + break; + case CS_EVENT_CARD_INSERTION: + snd_printdd(KERN_DEBUG "CARD_INSERTION..\n"); + link->state |= DEV_PRESENT; + pdacf_config(link); + break; +#ifdef CONFIG_PM + case CS_EVENT_PM_SUSPEND: + snd_printdd(KERN_DEBUG "SUSPEND\n"); + link->state |= DEV_SUSPEND; + if (chip) { + snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n"); + snd_pdacf_suspend(chip->card, PMSG_SUSPEND); + } + /* Fall through... */ + case CS_EVENT_RESET_PHYSICAL: + snd_printdd(KERN_DEBUG "RESET_PHYSICAL\n"); + if (link->state & DEV_CONFIG) + pcmcia_release_configuration(link->handle); + break; + case CS_EVENT_PM_RESUME: + snd_printdd(KERN_DEBUG "RESUME\n"); + link->state &= ~DEV_SUSPEND; + /* Fall through... */ + case CS_EVENT_CARD_RESET: + snd_printdd(KERN_DEBUG "CARD_RESET\n"); + if (DEV_OK(link)) { + snd_printdd(KERN_DEBUG "requestconfig...\n"); + pcmcia_request_configuration(link->handle, &link->conf); + if (chip) { + snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n"); + snd_pdacf_resume(chip->card); + } + } + snd_printdd(KERN_DEBUG "resume done!\n"); + break; +#endif + } + return 0; +} + +/* + * Module entry points + */ +static struct pcmcia_driver pdacf_cs_driver = { + .owner = THIS_MODULE, + .drv = { + .name = "snd-pdaudiocf", + }, + .attach = snd_pdacf_attach, + .detach = snd_pdacf_detach +}; + +static int __init init_pdacf(void) +{ + return pcmcia_register_driver(&pdacf_cs_driver); +} + +static void __exit exit_pdacf(void) +{ + pcmcia_unregister_driver(&pdacf_cs_driver); + BUG_ON(dev_list != NULL); +} + +module_init(init_pdacf); +module_exit(exit_pdacf); diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf.h b/sound/pcmcia/pdaudiocf/pdaudiocf.h new file mode 100644 index 00000000000..c7a9628256e --- /dev/null +++ b/sound/pcmcia/pdaudiocf/pdaudiocf.h @@ -0,0 +1,145 @@ +/* + * Driver for Sound Cors PDAudioCF soundcard + * + * Copyright (c) 2003 by Jaroslav Kysela + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __PDAUDIOCF_H +#define __PDAUDIOCF_H + +#include +#include +#include +#include +#include +#include +#include + +#include + +/* PDAUDIOCF registers */ +#define PDAUDIOCF_REG_MD 0x00 /* music data, R/O */ +#define PDAUDIOCF_REG_WDP 0x02 /* write data pointer / 2, R/O */ +#define PDAUDIOCF_REG_RDP 0x04 /* read data pointer / 2, R/O */ +#define PDAUDIOCF_REG_TCR 0x06 /* test control register W/O */ +#define PDAUDIOCF_REG_SCR 0x08 /* status and control, R/W (see bit description) */ +#define PDAUDIOCF_REG_ISR 0x0a /* interrupt status, R/O */ +#define PDAUDIOCF_REG_IER 0x0c /* interrupt enable, R/W */ +#define PDAUDIOCF_REG_AK_IFR 0x0e /* AK interface register, R/W */ + +/* PDAUDIOCF_REG_TCR */ +#define PDAUDIOCF_ELIMAKMBIT (1<<0) /* simulate AKM music data */ +#define PDAUDIOCF_TESTDATASEL (1<<1) /* test data selection, 0 = 0x55, 1 = pseudo-random */ + +/* PDAUDIOCF_REG_SCR */ +#define PDAUDIOCF_AK_SBP (1<<0) /* serial port busy flag */ +#define PDAUDIOCF_RST (1<<2) /* FPGA, AKM + SRAM buffer reset */ +#define PDAUDIOCF_PDN (1<<3) /* power down bit */ +#define PDAUDIOCF_CLKDIV0 (1<<4) /* choose 24.576Mhz clock divided by 1,2,3 or 4 */ +#define PDAUDIOCF_CLKDIV1 (1<<5) +#define PDAUDIOCF_RECORD (1<<6) /* start capturing to SRAM */ +#define PDAUDIOCF_AK_SDD (1<<7) /* music data detected */ +#define PDAUDIOCF_RED_LED_OFF (1<<8) /* red LED off override */ +#define PDAUDIOCF_BLUE_LED_OFF (1<<9) /* blue LED off override */ +#define PDAUDIOCF_DATAFMT0 (1<<10) /* data format bits: 00 = 16-bit, 01 = 18-bit */ +#define PDAUDIOCF_DATAFMT1 (1<<11) /* 10 = 20-bit, 11 = 24-bit, all right justified */ +#define PDAUDIOCF_FPGAREV(x) ((x>>12)&0x0f) /* FPGA revision */ + +/* PDAUDIOCF_REG_ISR */ +#define PDAUDIOCF_IRQLVL (1<<0) /* Buffer level IRQ */ +#define PDAUDIOCF_IRQOVR (1<<1) /* Overrun IRQ */ +#define PDAUDIOCF_IRQAKM (1<<2) /* AKM IRQ */ + +/* PDAUDIOCF_REG_IER */ +#define PDAUDIOCF_IRQLVLEN0 (1<<0) /* fill threshold levels; 00 = none, 01 = 1/8th of buffer */ +#define PDAUDIOCF_IRQLVLEN1 (1<<1) /* 10 = 1/4th of buffer, 11 = 1/2th of buffer */ +#define PDAUDIOCF_IRQOVREN (1<<2) /* enable overrun IRQ */ +#define PDAUDIOCF_IRQAKMEN (1<<3) /* enable AKM IRQ */ +#define PDAUDIOCF_BLUEDUTY0 (1<<8) /* blue LED duty cycle; 00 = 100%, 01 = 50% */ +#define PDAUDIOCF_BLUEDUTY1 (1<<9) /* 02 = 25%, 11 = 12% */ +#define PDAUDIOCF_REDDUTY0 (1<<10) /* red LED duty cycle; 00 = 100%, 01 = 50% */ +#define PDAUDIOCF_REDDUTY1 (1<<11) /* 02 = 25%, 11 = 12% */ +#define PDAUDIOCF_BLUESDD (1<<12) /* blue LED against SDD bit */ +#define PDAUDIOCF_BLUEMODULATE (1<<13) /* save power when 100% duty cycle selected */ +#define PDAUDIOCF_REDMODULATE (1<<14) /* save power when 100% duty cycle selected */ +#define PDAUDIOCF_HALFRATE (1<<15) /* slow both LED blinks by half (also spdif detect rate) */ + +/* chip status */ +#define PDAUDIOCF_STAT_IS_STALE (1<<0) +#define PDAUDIOCF_STAT_IS_CONFIGURED (1<<1) +#define PDAUDIOCF_STAT_IS_SUSPENDED (1<<2) + +typedef struct { + snd_card_t *card; + int index; + + unsigned long port; + int irq; + + spinlock_t reg_lock; + unsigned short regmap[8]; + unsigned short suspend_reg_scr; + struct tasklet_struct tq; + + spinlock_t ak4117_lock; + ak4117_t *ak4117; + + unsigned int chip_status; + + snd_pcm_t *pcm; + snd_pcm_substream_t *pcm_substream; + unsigned int pcm_running: 1; + unsigned int pcm_channels; + unsigned int pcm_swab; + unsigned int pcm_little; + unsigned int pcm_frame; + unsigned int pcm_sample; + unsigned int pcm_xor; + unsigned int pcm_size; + unsigned int pcm_period; + unsigned int pcm_tdone; + unsigned int pcm_hwptr; + void *pcm_area; + + /* pcmcia stuff */ + dev_link_t link; + dev_node_t node; +} pdacf_t; + +static inline void pdacf_reg_write(pdacf_t *chip, unsigned char reg, unsigned short val) +{ + outw(chip->regmap[reg>>1] = val, chip->port + reg); +} + +static inline unsigned short pdacf_reg_read(pdacf_t *chip, unsigned char reg) +{ + return inw(chip->port + reg); +} + +pdacf_t *snd_pdacf_create(snd_card_t *card); +int snd_pdacf_ak4117_create(pdacf_t *pdacf); +void snd_pdacf_powerdown(pdacf_t *chip); +#ifdef CONFIG_PM +int snd_pdacf_suspend(snd_card_t *card, pm_message_t state); +int snd_pdacf_resume(snd_card_t *card); +#endif +int snd_pdacf_pcm_new(pdacf_t *chip); +irqreturn_t pdacf_interrupt(int irq, void *dev, struct pt_regs *regs); +void pdacf_tasklet(unsigned long private_data); +void pdacf_reinit(pdacf_t *chip, int resume); + +#endif /* __PDAUDIOCF_H */ diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf_core.c b/sound/pcmcia/pdaudiocf/pdaudiocf_core.c new file mode 100644 index 00000000000..a2132e3763d --- /dev/null +++ b/sound/pcmcia/pdaudiocf/pdaudiocf_core.c @@ -0,0 +1,291 @@ +/* + * Driver for Sound Core PDAudioCF soundcard + * + * Copyright (c) 2003 by Jaroslav Kysela + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include "pdaudiocf.h" +#include + +/* + * + */ +static unsigned char pdacf_ak4117_read(void *private_data, unsigned char reg) +{ + pdacf_t *chip = private_data; + unsigned long timeout; + unsigned long flags; + unsigned char res; + + spin_lock_irqsave(&chip->ak4117_lock, flags); + timeout = 1000; + while (pdacf_reg_read(chip, PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) { + udelay(5); + if (--timeout == 0) { + spin_unlock_irqrestore(&chip->ak4117_lock, flags); + snd_printk(KERN_ERR "AK4117 ready timeout (read)\n"); + return 0; + } + } + pdacf_reg_write(chip, PDAUDIOCF_REG_AK_IFR, (u16)reg << 8); + timeout = 1000; + while (pdacf_reg_read(chip, PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) { + udelay(5); + if (--timeout == 0) { + spin_unlock_irqrestore(&chip->ak4117_lock, flags); + snd_printk(KERN_ERR "AK4117 read timeout (read2)\n"); + return 0; + } + } + res = (unsigned char)pdacf_reg_read(chip, PDAUDIOCF_REG_AK_IFR); + spin_unlock_irqrestore(&chip->ak4117_lock, flags); + return res; +} + +static void pdacf_ak4117_write(void *private_data, unsigned char reg, unsigned char val) +{ + pdacf_t *chip = private_data; + unsigned long timeout; + unsigned long flags; + + spin_lock_irqsave(&chip->ak4117_lock, flags); + timeout = 1000; + while (inw(chip->port + PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) { + udelay(5); + if (--timeout == 0) { + spin_unlock_irqrestore(&chip->ak4117_lock, flags); + snd_printk(KERN_ERR "AK4117 ready timeout (write)\n"); + return; + } + } + outw((u16)reg << 8 | val | (1<<13), chip->port + PDAUDIOCF_REG_AK_IFR); + spin_unlock_irqrestore(&chip->ak4117_lock, flags); +} + +#if 0 +void pdacf_dump(pdacf_t *chip) +{ + printk("PDAUDIOCF DUMP (0x%lx):\n", chip->port); + printk("WPD : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_WDP)); + printk("RDP : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_RDP)); + printk("TCR : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_TCR)); + printk("SCR : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_SCR)); + printk("ISR : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_ISR)); + printk("IER : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_IER)); + printk("AK_IFR : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_AK_IFR)); +} +#endif + +static int pdacf_reset(pdacf_t *chip, int powerdown) +{ + u16 val; + + val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR); + val |= PDAUDIOCF_PDN; + val &= ~PDAUDIOCF_RECORD; /* for sure */ + pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val); + udelay(5); + val |= PDAUDIOCF_RST; + pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val); + udelay(200); + val &= ~PDAUDIOCF_RST; + pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val); + udelay(5); + if (!powerdown) { + val &= ~PDAUDIOCF_PDN; + pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val); + udelay(200); + } + return 0; +} + +void pdacf_reinit(pdacf_t *chip, int resume) +{ + pdacf_reset(chip, 0); + if (resume) + pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, chip->suspend_reg_scr); + snd_ak4117_reinit(chip->ak4117); + pdacf_reg_write(chip, PDAUDIOCF_REG_TCR, chip->regmap[PDAUDIOCF_REG_TCR>>1]); + pdacf_reg_write(chip, PDAUDIOCF_REG_IER, chip->regmap[PDAUDIOCF_REG_IER>>1]); +} + +static void pdacf_proc_read(snd_info_entry_t * entry, + snd_info_buffer_t * buffer) +{ + pdacf_t *chip = entry->private_data; + u16 tmp; + + snd_iprintf(buffer, "PDAudioCF\n\n"); + tmp = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR); + snd_iprintf(buffer, "FPGA revision : 0x%x\n", PDAUDIOCF_FPGAREV(tmp)); + +} + +static void pdacf_proc_init(pdacf_t *chip) +{ + snd_info_entry_t *entry; + + if (! snd_card_proc_new(chip->card, "pdaudiocf", &entry)) + snd_info_set_text_ops(entry, chip, 1024, pdacf_proc_read); +} + +pdacf_t *snd_pdacf_create(snd_card_t *card) +{ + pdacf_t *chip; + + chip = kcalloc(1, sizeof(*chip), GFP_KERNEL); + if (chip == NULL) + return NULL; + chip->card = card; + spin_lock_init(&chip->reg_lock); + spin_lock_init(&chip->ak4117_lock); + tasklet_init(&chip->tq, pdacf_tasklet, (unsigned long)chip); + card->private_data = chip; + + pdacf_proc_init(chip); + return chip; +} + +static void snd_pdacf_ak4117_change(ak4117_t *ak4117, unsigned char c0, unsigned char c1) +{ + pdacf_t *chip = ak4117->change_callback_private; + unsigned long flags; + u16 val; + + if (!(c0 & AK4117_UNLCK)) + return; + spin_lock_irqsave(&chip->reg_lock, flags); + val = chip->regmap[PDAUDIOCF_REG_SCR>>1]; + if (ak4117->rcs0 & AK4117_UNLCK) + val |= PDAUDIOCF_BLUE_LED_OFF; + else + val &= ~PDAUDIOCF_BLUE_LED_OFF; + pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val); + spin_unlock_irqrestore(&chip->reg_lock, flags); +} + +int snd_pdacf_ak4117_create(pdacf_t *chip) +{ + int err; + u16 val; + /* design note: if we unmask PLL unlock, parity, valid, audio or auto bit interrupts */ + /* from AK4117 then INT1 pin from AK4117 will be high all time, because PCMCIA interrupts are */ + /* egde based and FPGA does logical OR for all interrupt sources, we cannot use these */ + /* high-rate sources */ + static unsigned char pgm[5] = { + AK4117_XTL_24_576M | AK4117_EXCT, /* AK4117_REG_PWRDN */ + AK4117_CM_PLL_XTAL | AK4117_PKCS_128fs | AK4117_XCKS_128fs, /* AK4117_REQ_CLOCK */ + AK4117_EFH_1024LRCLK | AK4117_DIF_24R | AK4117_IPS, /* AK4117_REG_IO */ + 0xff, /* AK4117_REG_INT0_MASK */ + AK4117_MAUTO | AK4117_MAUD | AK4117_MULK | AK4117_MPAR | AK4117_MV, /* AK4117_REG_INT1_MASK */ + }; + + err = pdacf_reset(chip, 0); + if (err < 0) + return err; + err = snd_ak4117_create(chip->card, pdacf_ak4117_read, pdacf_ak4117_write, pgm, chip, &chip->ak4117); + if (err < 0) + return err; + + val = pdacf_reg_read(chip, PDAUDIOCF_REG_TCR); +#if 1 /* normal operation */ + val &= ~(PDAUDIOCF_ELIMAKMBIT|PDAUDIOCF_TESTDATASEL); +#else /* debug */ + val |= PDAUDIOCF_ELIMAKMBIT; + val &= ~PDAUDIOCF_TESTDATASEL; +#endif + pdacf_reg_write(chip, PDAUDIOCF_REG_TCR, val); + + /* setup the FPGA to match AK4117 setup */ + val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR); + val &= ~(PDAUDIOCF_CLKDIV0 | PDAUDIOCF_CLKDIV1); /* use 24.576Mhz clock */ + val &= ~(PDAUDIOCF_RED_LED_OFF|PDAUDIOCF_BLUE_LED_OFF); + val |= PDAUDIOCF_DATAFMT0 | PDAUDIOCF_DATAFMT1; /* 24-bit data */ + pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val); + + /* setup LEDs and IRQ */ + val = pdacf_reg_read(chip, PDAUDIOCF_REG_IER); + val &= ~(PDAUDIOCF_IRQLVLEN0 | PDAUDIOCF_IRQLVLEN1); + val &= ~(PDAUDIOCF_BLUEDUTY0 | PDAUDIOCF_REDDUTY0 | PDAUDIOCF_REDDUTY1); + val |= PDAUDIOCF_BLUEDUTY1 | PDAUDIOCF_HALFRATE; + val |= PDAUDIOCF_IRQOVREN | PDAUDIOCF_IRQAKMEN; + pdacf_reg_write(chip, PDAUDIOCF_REG_IER, val); + + chip->ak4117->change_callback_private = chip; + chip->ak4117->change_callback = snd_pdacf_ak4117_change; + + /* update LED status */ + snd_pdacf_ak4117_change(chip->ak4117, AK4117_UNLCK, 0); + + return 0; +} + +void snd_pdacf_powerdown(pdacf_t *chip) +{ + u16 val; + + val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR); + chip->suspend_reg_scr = val; + val |= PDAUDIOCF_RED_LED_OFF | PDAUDIOCF_BLUE_LED_OFF; + pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val); + /* disable interrupts, but use direct write to preserve old register value in chip->regmap */ + val = inw(chip->port + PDAUDIOCF_REG_IER); + val &= ~(PDAUDIOCF_IRQOVREN|PDAUDIOCF_IRQAKMEN|PDAUDIOCF_IRQLVLEN0|PDAUDIOCF_IRQLVLEN1); + outw(val, chip->port + PDAUDIOCF_REG_IER); + pdacf_reset(chip, 1); +} + +#ifdef CONFIG_PM + +int snd_pdacf_suspend(snd_card_t *card, pm_message_t state) +{ + pdacf_t *chip = card->pm_private_data; + u16 val; + + snd_pcm_suspend_all(chip->pcm); + /* disable interrupts, but use direct write to preserve old register value in chip->regmap */ + val = inw(chip->port + PDAUDIOCF_REG_IER); + val &= ~(PDAUDIOCF_IRQOVREN|PDAUDIOCF_IRQAKMEN|PDAUDIOCF_IRQLVLEN0|PDAUDIOCF_IRQLVLEN1); + outw(val, chip->port + PDAUDIOCF_REG_IER); + chip->chip_status |= PDAUDIOCF_STAT_IS_SUSPENDED; /* ignore interrupts from now */ + snd_pdacf_powerdown(chip); + return 0; +} + +static inline int check_signal(pdacf_t *chip) +{ + return (chip->ak4117->rcs0 & AK4117_UNLCK) == 0; +} + +int snd_pdacf_resume(snd_card_t *card) +{ + pdacf_t *chip = card->pm_private_data; + int timeout = 40; + + pdacf_reinit(chip, 1); + /* wait for AK4117's PLL */ + while (timeout-- > 0 && + (snd_ak4117_external_rate(chip->ak4117) <= 0 || !check_signal(chip))) + mdelay(1); + chip->chip_status &= ~PDAUDIOCF_STAT_IS_SUSPENDED; + return 0; +} +#endif diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf_irq.c b/sound/pcmcia/pdaudiocf/pdaudiocf_irq.c new file mode 100644 index 00000000000..255b63444b5 --- /dev/null +++ b/sound/pcmcia/pdaudiocf/pdaudiocf_irq.c @@ -0,0 +1,325 @@ +/* + * Driver for Sound Core PDAudioCF soundcard + * + * Copyright (c) 2003 by Jaroslav Kysela + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include +#include "pdaudiocf.h" +#include + +/* + * + */ +irqreturn_t pdacf_interrupt(int irq, void *dev, struct pt_regs *regs) +{ + pdacf_t *chip = dev; + unsigned short stat; + + if ((chip->chip_status & (PDAUDIOCF_STAT_IS_STALE| + PDAUDIOCF_STAT_IS_CONFIGURED| + PDAUDIOCF_STAT_IS_SUSPENDED)) != PDAUDIOCF_STAT_IS_CONFIGURED) + return IRQ_HANDLED; /* IRQ_NONE here? */ + + stat = inw(chip->port + PDAUDIOCF_REG_ISR); + if (stat & (PDAUDIOCF_IRQLVL|PDAUDIOCF_IRQOVR)) { + if (stat & PDAUDIOCF_IRQOVR) /* should never happen */ + snd_printk(KERN_ERR "PDAUDIOCF SRAM buffer overrun detected!\n"); + if (chip->pcm_substream) + tasklet_hi_schedule(&chip->tq); + if (!(stat & PDAUDIOCF_IRQAKM)) + stat |= PDAUDIOCF_IRQAKM; /* check rate */ + } + if (regs != NULL) + snd_ak4117_check_rate_and_errors(chip->ak4117, 0); + return IRQ_HANDLED; +} + +static inline void pdacf_transfer_mono16(u16 *dst, u16 xor, unsigned int size, unsigned long rdp_port) +{ + while (size-- > 0) { + *dst++ = inw(rdp_port) ^ xor; + inw(rdp_port); + } +} + +static inline void pdacf_transfer_mono32(u32 *dst, u32 xor, unsigned int size, unsigned long rdp_port) +{ + register u16 val1, val2; + + while (size-- > 0) { + val1 = inw(rdp_port); + val2 = inw(rdp_port); + inw(rdp_port); + *dst++ = ((((u32)val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor; + } +} + +static inline void pdacf_transfer_stereo16(u16 *dst, u16 xor, unsigned int size, unsigned long rdp_port) +{ + while (size-- > 0) { + *dst++ = inw(rdp_port) ^ xor; + *dst++ = inw(rdp_port) ^ xor; + } +} + +static inline void pdacf_transfer_stereo32(u32 *dst, u32 xor, unsigned int size, unsigned long rdp_port) +{ + register u16 val1, val2, val3; + + while (size-- > 0) { + val1 = inw(rdp_port); + val2 = inw(rdp_port); + val3 = inw(rdp_port); + *dst++ = ((((u32)val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor; + *dst++ = (((u32)val3 << 16) | (val2 & 0xff00)) ^ xor; + } +} + +static inline void pdacf_transfer_mono16sw(u16 *dst, u16 xor, unsigned int size, unsigned long rdp_port) +{ + while (size-- > 0) { + *dst++ = swab16(inw(rdp_port) ^ xor); + inw(rdp_port); + } +} + +static inline void pdacf_transfer_mono32sw(u32 *dst, u32 xor, unsigned int size, unsigned long rdp_port) +{ + register u16 val1, val2; + + while (size-- > 0) { + val1 = inw(rdp_port); + val2 = inw(rdp_port); + inw(rdp_port); + *dst++ = swab32((((val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor); + } +} + +static inline void pdacf_transfer_stereo16sw(u16 *dst, u16 xor, unsigned int size, unsigned long rdp_port) +{ + while (size-- > 0) { + *dst++ = swab16(inw(rdp_port) ^ xor); + *dst++ = swab16(inw(rdp_port) ^ xor); + } +} + +static inline void pdacf_transfer_stereo32sw(u32 *dst, u32 xor, unsigned int size, unsigned long rdp_port) +{ + register u16 val1, val2, val3; + + while (size-- > 0) { + val1 = inw(rdp_port); + val2 = inw(rdp_port); + val3 = inw(rdp_port); + *dst++ = swab32((((val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor); + *dst++ = swab32((((u32)val3 << 16) | (val2 & 0xff00)) ^ xor); + } +} + +static inline void pdacf_transfer_mono24le(u8 *dst, u16 xor, unsigned int size, unsigned long rdp_port) +{ + register u16 val1, val2; + register u32 xval1; + + while (size-- > 0) { + val1 = inw(rdp_port); + val2 = inw(rdp_port); + inw(rdp_port); + xval1 = (((val2 & 0xff) << 8) | (val1 << 16)) ^ xor; + *dst++ = (u8)(xval1 >> 8); + *dst++ = (u8)(xval1 >> 16); + *dst++ = (u8)(xval1 >> 24); + } +} + +static inline void pdacf_transfer_mono24be(u8 *dst, u16 xor, unsigned int size, unsigned long rdp_port) +{ + register u16 val1, val2; + register u32 xval1; + + while (size-- > 0) { + val1 = inw(rdp_port); + val2 = inw(rdp_port); + inw(rdp_port); + xval1 = (((val2 & 0xff) << 8) | (val1 << 16)) ^ xor; + *dst++ = (u8)(xval1 >> 24); + *dst++ = (u8)(xval1 >> 16); + *dst++ = (u8)(xval1 >> 8); + } +} + +static inline void pdacf_transfer_stereo24le(u8 *dst, u32 xor, unsigned int size, unsigned long rdp_port) +{ + register u16 val1, val2, val3; + register u32 xval1, xval2; + + while (size-- > 0) { + val1 = inw(rdp_port); + val2 = inw(rdp_port); + val3 = inw(rdp_port); + xval1 = ((((u32)val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor; + xval2 = (((u32)val3 << 16) | (val2 & 0xff00)) ^ xor; + *dst++ = (u8)(xval1 >> 8); + *dst++ = (u8)(xval1 >> 16); + *dst++ = (u8)(xval1 >> 24); + *dst++ = (u8)(xval2 >> 8); + *dst++ = (u8)(xval2 >> 16); + *dst++ = (u8)(xval2 >> 24); + } +} + +static inline void pdacf_transfer_stereo24be(u8 *dst, u32 xor, unsigned int size, unsigned long rdp_port) +{ + register u16 val1, val2, val3; + register u32 xval1, xval2; + + while (size-- > 0) { + val1 = inw(rdp_port); + val2 = inw(rdp_port); + val3 = inw(rdp_port); + xval1 = ((((u32)val2 & 0xff) << 24) | ((u32)val1 << 8)) ^ xor; + xval2 = (((u32)val3 << 16) | (val2 & 0xff00)) ^ xor; + *dst++ = (u8)(xval1 >> 24); + *dst++ = (u8)(xval1 >> 16); + *dst++ = (u8)(xval1 >> 8); + *dst++ = (u8)(xval2 >> 24); + *dst++ = (u8)(xval2 >> 16); + *dst++ = (u8)(xval2 >> 8); + } +} + +static void pdacf_transfer(pdacf_t *chip, unsigned int size, unsigned int off) +{ + unsigned long rdp_port = chip->port + PDAUDIOCF_REG_MD; + unsigned int xor = chip->pcm_xor; + + if (chip->pcm_sample == 3) { + if (chip->pcm_little) { + if (chip->pcm_channels == 1) { + pdacf_transfer_mono24le((char *)chip->pcm_area + (off * 3), xor, size, rdp_port); + } else { + pdacf_transfer_stereo24le((char *)chip->pcm_area + (off * 6), xor, size, rdp_port); + } + } else { + if (chip->pcm_channels == 1) { + pdacf_transfer_mono24be((char *)chip->pcm_area + (off * 3), xor, size, rdp_port); + } else { + pdacf_transfer_stereo24be((char *)chip->pcm_area + (off * 6), xor, size, rdp_port); + } + } + return; + } + if (chip->pcm_swab == 0) { + if (chip->pcm_channels == 1) { + if (chip->pcm_frame == 2) { + pdacf_transfer_mono16((u16 *)chip->pcm_area + off, xor, size, rdp_port); + } else { + pdacf_transfer_mono32((u32 *)chip->pcm_area + off, xor, size, rdp_port); + } + } else { + if (chip->pcm_frame == 2) { + pdacf_transfer_stereo16((u16 *)chip->pcm_area + (off * 2), xor, size, rdp_port); + } else { + pdacf_transfer_stereo32((u32 *)chip->pcm_area + (off * 2), xor, size, rdp_port); + } + } + } else { + if (chip->pcm_channels == 1) { + if (chip->pcm_frame == 2) { + pdacf_transfer_mono16sw((u16 *)chip->pcm_area + off, xor, size, rdp_port); + } else { + pdacf_transfer_mono32sw((u32 *)chip->pcm_area + off, xor, size, rdp_port); + } + } else { + if (chip->pcm_frame == 2) { + pdacf_transfer_stereo16sw((u16 *)chip->pcm_area + (off * 2), xor, size, rdp_port); + } else { + pdacf_transfer_stereo32sw((u32 *)chip->pcm_area + (off * 2), xor, size, rdp_port); + } + } + } +} + +void pdacf_tasklet(unsigned long private_data) +{ + pdacf_t *chip = (pdacf_t *) private_data; + int size, off, cont, rdp, wdp; + + if ((chip->chip_status & (PDAUDIOCF_STAT_IS_STALE|PDAUDIOCF_STAT_IS_CONFIGURED)) != PDAUDIOCF_STAT_IS_CONFIGURED) + return; + + if (chip->pcm_substream == NULL || chip->pcm_substream->runtime == NULL || !snd_pcm_running(chip->pcm_substream)) + return; + + rdp = inw(chip->port + PDAUDIOCF_REG_RDP); + wdp = inw(chip->port + PDAUDIOCF_REG_WDP); + // printk("TASKLET: rdp = %x, wdp = %x\n", rdp, wdp); + size = wdp - rdp; + if (size < 0) + size += 0x10000; + if (size == 0) + size = 0x10000; + size /= chip->pcm_frame; + if (size > 64) + size -= 32; + +#if 0 + chip->pcm_hwptr += size; + chip->pcm_hwptr %= chip->pcm_size; + chip->pcm_tdone += size; + if (chip->pcm_frame == 2) { + unsigned long rdp_port = chip->port + PDAUDIOCF_REG_MD; + while (size-- > 0) { + inw(rdp_port); + inw(rdp_port); + } + } else { + unsigned long rdp_port = chip->port + PDAUDIOCF_REG_MD; + while (size-- > 0) { + inw(rdp_port); + inw(rdp_port); + inw(rdp_port); + } + } +#else + off = chip->pcm_hwptr + chip->pcm_tdone; + off %= chip->pcm_size; + chip->pcm_tdone += size; + while (size > 0) { + cont = chip->pcm_size - off; + if (cont > size) + cont = size; + pdacf_transfer(chip, cont, off); + off += cont; + off %= chip->pcm_size; + size -= cont; + } +#endif + spin_lock(&chip->reg_lock); + while (chip->pcm_tdone >= chip->pcm_period) { + chip->pcm_hwptr += chip->pcm_period; + chip->pcm_hwptr %= chip->pcm_size; + chip->pcm_tdone -= chip->pcm_period; + spin_unlock(&chip->reg_lock); + snd_pcm_period_elapsed(chip->pcm_substream); + spin_lock(&chip->reg_lock); + } + spin_unlock(&chip->reg_lock); + // printk("TASKLET: end\n"); +} diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c b/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c new file mode 100644 index 00000000000..0a954dc11b7 --- /dev/null +++ b/sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c @@ -0,0 +1,361 @@ +/* + * Driver for Sound Core PDAudioCF soundcards + * + * PCM part + * + * Copyright (c) 2003 by Jaroslav Kysela + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include +#include +#include "pdaudiocf.h" + + +/* + * we use a vmalloc'ed (sg-)buffer + */ + +/* get the physical page pointer on the given offset */ +static struct page *snd_pcm_get_vmalloc_page(snd_pcm_substream_t *subs, unsigned long offset) +{ + void *pageptr = subs->runtime->dma_area + offset; + return vmalloc_to_page(pageptr); +} + +/* + * hw_params callback + * NOTE: this may be called not only once per pcm open! + */ +static int snd_pcm_alloc_vmalloc_buffer(snd_pcm_substream_t *subs, size_t size) +{ + snd_pcm_runtime_t *runtime = subs->runtime; + if (runtime->dma_area) { + if (runtime->dma_bytes >= size) + return 0; /* already enough large */ + vfree_nocheck(runtime->dma_area); + } + runtime->dma_area = vmalloc_nocheck(size); + if (! runtime->dma_area) + return -ENOMEM; + runtime->dma_bytes = size; + return 0; +} + +/* + * hw_free callback + * NOTE: this may be called not only once per pcm open! + */ +static int snd_pcm_free_vmalloc_buffer(snd_pcm_substream_t *subs) +{ + snd_pcm_runtime_t *runtime = subs->runtime; + if (runtime->dma_area) { + vfree_nocheck(runtime->dma_area); + runtime->dma_area = NULL; + } + return 0; +} + +/* + * clear the SRAM contents + */ +static int pdacf_pcm_clear_sram(pdacf_t *chip) +{ + int max_loop = 64 * 1024; + + while (inw(chip->port + PDAUDIOCF_REG_RDP) != inw(chip->port + PDAUDIOCF_REG_WDP)) { + if (max_loop-- < 0) + return -EIO; + inw(chip->port + PDAUDIOCF_REG_MD); + } + return 0; +} + +/* + * pdacf_pcm_trigger - trigger callback for capture + */ +static int pdacf_pcm_trigger(snd_pcm_substream_t *subs, int cmd) +{ + pdacf_t *chip = snd_pcm_substream_chip(subs); + snd_pcm_runtime_t *runtime = subs->runtime; + int inc, ret = 0, rate; + unsigned short mask, val, tmp; + + if (chip->chip_status & PDAUDIOCF_STAT_IS_STALE) + return -EBUSY; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + chip->pcm_hwptr = 0; + chip->pcm_tdone = 0; + /* fall thru */ + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + case SNDRV_PCM_TRIGGER_RESUME: + mask = 0; + val = PDAUDIOCF_RECORD; + inc = 1; + rate = snd_ak4117_check_rate_and_errors(chip->ak4117, AK4117_CHECK_NO_STAT|AK4117_CHECK_NO_RATE); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_SUSPEND: + mask = PDAUDIOCF_RECORD; + val = 0; + inc = -1; + rate = 0; + break; + default: + return -EINVAL; + } + spin_lock(&chip->reg_lock); + chip->pcm_running += inc; + tmp = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR); + if (chip->pcm_running) { + if ((chip->ak4117->rcs0 & AK4117_UNLCK) || runtime->rate != rate) { + chip->pcm_running -= inc; + ret = -EIO; + goto __end; + } + } + tmp &= ~mask; + tmp |= val; + pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, tmp); + __end: + spin_unlock(&chip->reg_lock); + snd_ak4117_check_rate_and_errors(chip->ak4117, AK4117_CHECK_NO_RATE); + return ret; +} + +/* + * pdacf_pcm_hw_params - hw_params callback for playback and capture + */ +static int pdacf_pcm_hw_params(snd_pcm_substream_t *subs, + snd_pcm_hw_params_t *hw_params) +{ + return snd_pcm_alloc_vmalloc_buffer(subs, params_buffer_bytes(hw_params)); +} + +/* + * pdacf_pcm_hw_free - hw_free callback for playback and capture + */ +static int pdacf_pcm_hw_free(snd_pcm_substream_t *subs) +{ + return snd_pcm_free_vmalloc_buffer(subs); +} + +/* + * pdacf_pcm_prepare - prepare callback for playback and capture + */ +static int pdacf_pcm_prepare(snd_pcm_substream_t *subs) +{ + pdacf_t *chip = snd_pcm_substream_chip(subs); + snd_pcm_runtime_t *runtime = subs->runtime; + u16 val, nval, aval; + + if (chip->chip_status & PDAUDIOCF_STAT_IS_STALE) + return -EBUSY; + + chip->pcm_channels = runtime->channels; + + chip->pcm_little = snd_pcm_format_little_endian(runtime->format) > 0; +#ifdef SNDRV_LITTLE_ENDIAN + chip->pcm_swab = snd_pcm_format_big_endian(runtime->format) > 0; +#else + chip->pcm_swab = chip->pcm_little; +#endif + + if (snd_pcm_format_unsigned(runtime->format)) + chip->pcm_xor = 0x80008000; + + if (pdacf_pcm_clear_sram(chip) < 0) + return -EIO; + + val = nval = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR); + nval &= ~(PDAUDIOCF_DATAFMT0|PDAUDIOCF_DATAFMT1); + switch (runtime->format) { + case SNDRV_PCM_FORMAT_S16_LE: + case SNDRV_PCM_FORMAT_S16_BE: + break; + default: /* 24-bit */ + nval |= PDAUDIOCF_DATAFMT0 | PDAUDIOCF_DATAFMT1; + break; + } + aval = 0; + chip->pcm_sample = 4; + switch (runtime->format) { + case SNDRV_PCM_FORMAT_S16_LE: + case SNDRV_PCM_FORMAT_S16_BE: + aval = AK4117_DIF_16R; + chip->pcm_frame = 2; + chip->pcm_sample = 2; + break; + case SNDRV_PCM_FORMAT_S24_3LE: + case SNDRV_PCM_FORMAT_S24_3BE: + chip->pcm_sample = 3; + /* fall trough */ + default: /* 24-bit */ + aval = AK4117_DIF_24R; + chip->pcm_frame = 3; + chip->pcm_xor &= 0xffff0000; + break; + } + + if (val != nval) { + snd_ak4117_reg_write(chip->ak4117, AK4117_REG_IO, AK4117_DIF2|AK4117_DIF1|AK4117_DIF0, aval); + pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, nval); + } + + val = pdacf_reg_read(chip, PDAUDIOCF_REG_IER); + val &= ~(PDAUDIOCF_IRQLVLEN1); + val |= PDAUDIOCF_IRQLVLEN0; + pdacf_reg_write(chip, PDAUDIOCF_REG_IER, val); + + chip->pcm_size = runtime->buffer_size; + chip->pcm_period = runtime->period_size; + chip->pcm_area = runtime->dma_area; + + return 0; +} + + +/* + * capture hw information + */ + +static snd_pcm_hardware_t pdacf_pcm_capture_hw = { + .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME | + SNDRV_PCM_INFO_MMAP_VALID), + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | + SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE | + SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, + .rates = SNDRV_PCM_RATE_32000 | + SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000 | + SNDRV_PCM_RATE_176400 | + SNDRV_PCM_RATE_192000, + .rate_min = 32000, + .rate_max = 192000, + .channels_min = 1, + .channels_max = 2, + .buffer_bytes_max = (512*1024), + .period_bytes_min = 8*1024, + .period_bytes_max = (64*1024), + .periods_min = 2, + .periods_max = 128, + .fifo_size = 0, +}; + + +/* + * pdacf_pcm_capture_open - open callback for capture + */ +static int pdacf_pcm_capture_open(snd_pcm_substream_t *subs) +{ + snd_pcm_runtime_t *runtime = subs->runtime; + pdacf_t *chip = snd_pcm_substream_chip(subs); + + if (chip->chip_status & PDAUDIOCF_STAT_IS_STALE) + return -EBUSY; + + runtime->hw = pdacf_pcm_capture_hw; + runtime->private_data = chip; + chip->pcm_substream = subs; + + return 0; +} + +/* + * pdacf_pcm_capture_close - close callback for capture + */ +static int pdacf_pcm_capture_close(snd_pcm_substream_t *subs) +{ + pdacf_t *chip = snd_pcm_substream_chip(subs); + + if (!chip) + return -EINVAL; + pdacf_reinit(chip, 0); + chip->pcm_substream = NULL; + return 0; +} + + +/* + * pdacf_pcm_capture_pointer - pointer callback for capture + */ +static snd_pcm_uframes_t pdacf_pcm_capture_pointer(snd_pcm_substream_t *subs) +{ + pdacf_t *chip = snd_pcm_substream_chip(subs); + return chip->pcm_hwptr; +} + +/* + * operators for PCM capture + */ +static snd_pcm_ops_t pdacf_pcm_capture_ops = { + .open = pdacf_pcm_capture_open, + .close = pdacf_pcm_capture_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = pdacf_pcm_hw_params, + .hw_free = pdacf_pcm_hw_free, + .prepare = pdacf_pcm_prepare, + .trigger = pdacf_pcm_trigger, + .pointer = pdacf_pcm_capture_pointer, + .page = snd_pcm_get_vmalloc_page, +}; + + +/* + * free callback for pcm + */ +static void snd_pdacf_pcm_free(snd_pcm_t *pcm) +{ + pdacf_t *chip = pcm->private_data; + chip->pcm = NULL; +} + +/* + * snd_pdacf_pcm_new - create and initialize a pcm + */ +int snd_pdacf_pcm_new(pdacf_t *chip) +{ + snd_pcm_t *pcm; + int err; + + err = snd_pcm_new(chip->card, "PDAudioCF", 0, 0, 1, &pcm); + if (err < 0) + return err; + + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pdacf_pcm_capture_ops); + + pcm->private_data = chip; + pcm->private_free = snd_pdacf_pcm_free; + pcm->info_flags = 0; + strcpy(pcm->name, chip->card->shortname); + chip->pcm = pcm; + + err = snd_ak4117_build(chip->ak4117, pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream); + if (err < 0) + return err; + + return 0; +} -- cgit v1.2.3