diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/aoa/soundbus')
| -rw-r--r-- | ANDROID_3.4.5/sound/aoa/soundbus/Kconfig | 14 | ||||
| -rw-r--r-- | ANDROID_3.4.5/sound/aoa/soundbus/Makefile | 3 | ||||
| -rw-r--r-- | ANDROID_3.4.5/sound/aoa/soundbus/core.c | 219 | ||||
| -rw-r--r-- | ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/Makefile | 2 | ||||
| -rw-r--r-- | ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/control.c | 194 | ||||
| -rw-r--r-- | ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/core.c | 464 | ||||
| -rw-r--r-- | ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/i2sbus.h | 126 | ||||
| -rw-r--r-- | ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/interface.h | 187 | ||||
| -rw-r--r-- | ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/pcm.c | 1064 | ||||
| -rw-r--r-- | ANDROID_3.4.5/sound/aoa/soundbus/soundbus.h | 204 | ||||
| -rw-r--r-- | ANDROID_3.4.5/sound/aoa/soundbus/sysfs.c | 42 |
11 files changed, 0 insertions, 2519 deletions
diff --git a/ANDROID_3.4.5/sound/aoa/soundbus/Kconfig b/ANDROID_3.4.5/sound/aoa/soundbus/Kconfig deleted file mode 100644 index 839d1137..00000000 --- a/ANDROID_3.4.5/sound/aoa/soundbus/Kconfig +++ /dev/null @@ -1,14 +0,0 @@ -config SND_AOA_SOUNDBUS - tristate "Apple Soundbus support" - select SND_PCM - ---help--- - This option enables the generic driver for the soundbus - support on Apple machines. - - It is required for the sound bus implementations. - -config SND_AOA_SOUNDBUS_I2S - tristate "I2S bus support" - depends on SND_AOA_SOUNDBUS && PCI - ---help--- - This option enables support for Apple I2S busses. diff --git a/ANDROID_3.4.5/sound/aoa/soundbus/Makefile b/ANDROID_3.4.5/sound/aoa/soundbus/Makefile deleted file mode 100644 index 0e61f5aa..00000000 --- a/ANDROID_3.4.5/sound/aoa/soundbus/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -obj-$(CONFIG_SND_AOA_SOUNDBUS) += snd-aoa-soundbus.o -snd-aoa-soundbus-objs := core.o sysfs.o -obj-$(CONFIG_SND_AOA_SOUNDBUS_I2S) += i2sbus/ diff --git a/ANDROID_3.4.5/sound/aoa/soundbus/core.c b/ANDROID_3.4.5/sound/aoa/soundbus/core.c deleted file mode 100644 index 7487eb76..00000000 --- a/ANDROID_3.4.5/sound/aoa/soundbus/core.c +++ /dev/null @@ -1,219 +0,0 @@ -/* - * soundbus - * - * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> - * - * GPL v2, can be found in COPYING. - */ - -#include <linux/module.h> -#include "soundbus.h" - -MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Apple Soundbus"); - -struct soundbus_dev *soundbus_dev_get(struct soundbus_dev *dev) -{ - struct device *tmp; - - if (!dev) - return NULL; - tmp = get_device(&dev->ofdev.dev); - if (tmp) - return to_soundbus_device(tmp); - else - return NULL; -} -EXPORT_SYMBOL_GPL(soundbus_dev_get); - -void soundbus_dev_put(struct soundbus_dev *dev) -{ - if (dev) - put_device(&dev->ofdev.dev); -} -EXPORT_SYMBOL_GPL(soundbus_dev_put); - -static int soundbus_probe(struct device *dev) -{ - int error = -ENODEV; - struct soundbus_driver *drv; - struct soundbus_dev *soundbus_dev; - - drv = to_soundbus_driver(dev->driver); - soundbus_dev = to_soundbus_device(dev); - - if (!drv->probe) - return error; - - soundbus_dev_get(soundbus_dev); - - error = drv->probe(soundbus_dev); - if (error) - soundbus_dev_put(soundbus_dev); - - return error; -} - - -static int soundbus_uevent(struct device *dev, struct kobj_uevent_env *env) -{ - struct soundbus_dev * soundbus_dev; - struct platform_device * of; - const char *compat; - int retval = 0; - int cplen, seen = 0; - - if (!dev) - return -ENODEV; - - soundbus_dev = to_soundbus_device(dev); - if (!soundbus_dev) - return -ENODEV; - - of = &soundbus_dev->ofdev; - - /* stuff we want to pass to /sbin/hotplug */ - retval = add_uevent_var(env, "OF_NAME=%s", of->dev.of_node->name); - if (retval) - return retval; - - retval = add_uevent_var(env, "OF_TYPE=%s", of->dev.of_node->type); - if (retval) - return retval; - - /* Since the compatible field can contain pretty much anything - * it's not really legal to split it out with commas. We split it - * up using a number of environment variables instead. */ - - compat = of_get_property(of->dev.of_node, "compatible", &cplen); - while (compat && cplen > 0) { - int tmp = env->buflen; - retval = add_uevent_var(env, "OF_COMPATIBLE_%d=%s", seen, compat); - if (retval) - return retval; - compat += env->buflen - tmp; - cplen -= env->buflen - tmp; - seen += 1; - } - - retval = add_uevent_var(env, "OF_COMPATIBLE_N=%d", seen); - if (retval) - return retval; - retval = add_uevent_var(env, "MODALIAS=%s", soundbus_dev->modalias); - - return retval; -} - -static int soundbus_device_remove(struct device *dev) -{ - struct soundbus_dev * soundbus_dev = to_soundbus_device(dev); - struct soundbus_driver * drv = to_soundbus_driver(dev->driver); - - if (dev->driver && drv->remove) - drv->remove(soundbus_dev); - soundbus_dev_put(soundbus_dev); - - return 0; -} - -static void soundbus_device_shutdown(struct device *dev) -{ - struct soundbus_dev * soundbus_dev = to_soundbus_device(dev); - struct soundbus_driver * drv = to_soundbus_driver(dev->driver); - - if (dev->driver && drv->shutdown) - drv->shutdown(soundbus_dev); -} - -#ifdef CONFIG_PM - -static int soundbus_device_suspend(struct device *dev, pm_message_t state) -{ - struct soundbus_dev * soundbus_dev = to_soundbus_device(dev); - struct soundbus_driver * drv = to_soundbus_driver(dev->driver); - - if (dev->driver && drv->suspend) - return drv->suspend(soundbus_dev, state); - return 0; -} - -static int soundbus_device_resume(struct device * dev) -{ - struct soundbus_dev * soundbus_dev = to_soundbus_device(dev); - struct soundbus_driver * drv = to_soundbus_driver(dev->driver); - - if (dev->driver && drv->resume) - return drv->resume(soundbus_dev); - return 0; -} - -#endif /* CONFIG_PM */ - -static struct bus_type soundbus_bus_type = { - .name = "aoa-soundbus", - .probe = soundbus_probe, - .uevent = soundbus_uevent, - .remove = soundbus_device_remove, - .shutdown = soundbus_device_shutdown, -#ifdef CONFIG_PM - .suspend = soundbus_device_suspend, - .resume = soundbus_device_resume, -#endif - .dev_attrs = soundbus_dev_attrs, -}; - -int soundbus_add_one(struct soundbus_dev *dev) -{ - static int devcount; - - /* sanity checks */ - if (!dev->attach_codec || - !dev->ofdev.dev.of_node || - dev->pcmname || - dev->pcmid != -1) { - printk(KERN_ERR "soundbus: adding device failed sanity check!\n"); - return -EINVAL; - } - - dev_set_name(&dev->ofdev.dev, "soundbus:%x", ++devcount); - dev->ofdev.dev.bus = &soundbus_bus_type; - return of_device_register(&dev->ofdev); -} -EXPORT_SYMBOL_GPL(soundbus_add_one); - -void soundbus_remove_one(struct soundbus_dev *dev) -{ - of_device_unregister(&dev->ofdev); -} -EXPORT_SYMBOL_GPL(soundbus_remove_one); - -int soundbus_register_driver(struct soundbus_driver *drv) -{ - /* initialize common driver fields */ - drv->driver.name = drv->name; - drv->driver.bus = &soundbus_bus_type; - - /* register with core */ - return driver_register(&drv->driver); -} -EXPORT_SYMBOL_GPL(soundbus_register_driver); - -void soundbus_unregister_driver(struct soundbus_driver *drv) -{ - driver_unregister(&drv->driver); -} -EXPORT_SYMBOL_GPL(soundbus_unregister_driver); - -static int __init soundbus_init(void) -{ - return bus_register(&soundbus_bus_type); -} - -static void __exit soundbus_exit(void) -{ - bus_unregister(&soundbus_bus_type); -} - -subsys_initcall(soundbus_init); -module_exit(soundbus_exit); diff --git a/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/Makefile b/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/Makefile deleted file mode 100644 index 1b949b2a..00000000 --- a/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/Makefile +++ /dev/null @@ -1,2 +0,0 @@ -obj-$(CONFIG_SND_AOA_SOUNDBUS_I2S) += snd-aoa-i2sbus.o -snd-aoa-i2sbus-objs := core.o pcm.o control.o diff --git a/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/control.c b/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/control.c deleted file mode 100644 index 4dc9b49c..00000000 --- a/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/control.c +++ /dev/null @@ -1,194 +0,0 @@ -/* - * i2sbus driver -- bus control routines - * - * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> - * - * GPL v2, can be found in COPYING. - */ - -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/slab.h> - -#include <asm/io.h> -#include <asm/prom.h> -#include <asm/macio.h> -#include <asm/pmac_feature.h> -#include <asm/pmac_pfunc.h> -#include <asm/keylargo.h> - -#include "i2sbus.h" - -int i2sbus_control_init(struct macio_dev* dev, struct i2sbus_control **c) -{ - *c = kzalloc(sizeof(struct i2sbus_control), GFP_KERNEL); - if (!*c) - return -ENOMEM; - - INIT_LIST_HEAD(&(*c)->list); - - (*c)->macio = dev->bus->chip; - return 0; -} - -void i2sbus_control_destroy(struct i2sbus_control *c) -{ - kfree(c); -} - -/* this is serialised externally */ -int i2sbus_control_add_dev(struct i2sbus_control *c, - struct i2sbus_dev *i2sdev) -{ - struct device_node *np; - - np = i2sdev->sound.ofdev.dev.of_node; - i2sdev->enable = pmf_find_function(np, "enable"); - i2sdev->cell_enable = pmf_find_function(np, "cell-enable"); - i2sdev->clock_enable = pmf_find_function(np, "clock-enable"); - i2sdev->cell_disable = pmf_find_function(np, "cell-disable"); - i2sdev->clock_disable = pmf_find_function(np, "clock-disable"); - - /* if the bus number is not 0 or 1 we absolutely need to use - * the platform functions -- there's nothing in Darwin that - * would allow seeing a system behind what the FCRs are then, - * and I don't want to go parsing a bunch of platform functions - * by hand to try finding a system... */ - if (i2sdev->bus_number != 0 && i2sdev->bus_number != 1 && - (!i2sdev->enable || - !i2sdev->cell_enable || !i2sdev->clock_enable || - !i2sdev->cell_disable || !i2sdev->clock_disable)) { - pmf_put_function(i2sdev->enable); - pmf_put_function(i2sdev->cell_enable); - pmf_put_function(i2sdev->clock_enable); - pmf_put_function(i2sdev->cell_disable); - pmf_put_function(i2sdev->clock_disable); - return -ENODEV; - } - - list_add(&i2sdev->item, &c->list); - - return 0; -} - -void i2sbus_control_remove_dev(struct i2sbus_control *c, - struct i2sbus_dev *i2sdev) -{ - /* this is serialised externally */ - list_del(&i2sdev->item); - if (list_empty(&c->list)) - i2sbus_control_destroy(c); -} - -int i2sbus_control_enable(struct i2sbus_control *c, - struct i2sbus_dev *i2sdev) -{ - struct pmf_args args = { .count = 0 }; - struct macio_chip *macio = c->macio; - - if (i2sdev->enable) - return pmf_call_one(i2sdev->enable, &args); - - if (macio == NULL || macio->base == NULL) - return -ENODEV; - - switch (i2sdev->bus_number) { - case 0: - /* these need to be locked or done through - * newly created feature calls! */ - MACIO_BIS(KEYLARGO_FCR1, KL1_I2S0_ENABLE); - break; - case 1: - MACIO_BIS(KEYLARGO_FCR1, KL1_I2S1_ENABLE); - break; - default: - return -ENODEV; - } - return 0; -} - -int i2sbus_control_cell(struct i2sbus_control *c, - struct i2sbus_dev *i2sdev, - int enable) -{ - struct pmf_args args = { .count = 0 }; - struct macio_chip *macio = c->macio; - - switch (enable) { - case 0: - if (i2sdev->cell_disable) - return pmf_call_one(i2sdev->cell_disable, &args); - break; - case 1: - if (i2sdev->cell_enable) - return pmf_call_one(i2sdev->cell_enable, &args); - break; - default: - printk(KERN_ERR "i2sbus: INVALID CELL ENABLE VALUE\n"); - return -ENODEV; - } - - if (macio == NULL || macio->base == NULL) - return -ENODEV; - - switch (i2sdev->bus_number) { - case 0: - if (enable) - MACIO_BIS(KEYLARGO_FCR1, KL1_I2S0_CELL_ENABLE); - else - MACIO_BIC(KEYLARGO_FCR1, KL1_I2S0_CELL_ENABLE); - break; - case 1: - if (enable) - MACIO_BIS(KEYLARGO_FCR1, KL1_I2S1_CELL_ENABLE); - else - MACIO_BIC(KEYLARGO_FCR1, KL1_I2S1_CELL_ENABLE); - break; - default: - return -ENODEV; - } - return 0; -} - -int i2sbus_control_clock(struct i2sbus_control *c, - struct i2sbus_dev *i2sdev, - int enable) -{ - struct pmf_args args = { .count = 0 }; - struct macio_chip *macio = c->macio; - - switch (enable) { - case 0: - if (i2sdev->clock_disable) - return pmf_call_one(i2sdev->clock_disable, &args); - break; - case 1: - if (i2sdev->clock_enable) - return pmf_call_one(i2sdev->clock_enable, &args); - break; - default: - printk(KERN_ERR "i2sbus: INVALID CLOCK ENABLE VALUE\n"); - return -ENODEV; - } - - if (macio == NULL || macio->base == NULL) - return -ENODEV; - - switch (i2sdev->bus_number) { - case 0: - if (enable) - MACIO_BIS(KEYLARGO_FCR1, KL1_I2S0_CLK_ENABLE_BIT); - else - MACIO_BIC(KEYLARGO_FCR1, KL1_I2S0_CLK_ENABLE_BIT); - break; - case 1: - if (enable) - MACIO_BIS(KEYLARGO_FCR1, KL1_I2S1_CLK_ENABLE_BIT); - else - MACIO_BIC(KEYLARGO_FCR1, KL1_I2S1_CLK_ENABLE_BIT); - break; - default: - return -ENODEV; - } - return 0; -} diff --git a/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/core.c b/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/core.c deleted file mode 100644 index 01065833..00000000 --- a/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/core.c +++ /dev/null @@ -1,464 +0,0 @@ -/* - * i2sbus driver - * - * Copyright 2006-2008 Johannes Berg <johannes@sipsolutions.net> - * - * GPL v2, can be found in COPYING. - */ - -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/pci.h> -#include <linux/interrupt.h> -#include <linux/dma-mapping.h> - -#include <sound/core.h> - -#include <asm/macio.h> -#include <asm/dbdma.h> - -#include "../soundbus.h" -#include "i2sbus.h" - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>"); -MODULE_DESCRIPTION("Apple Soundbus: I2S support"); - -static int force; -module_param(force, int, 0444); -MODULE_PARM_DESC(force, "Force loading i2sbus even when" - " no layout-id property is present"); - -static struct of_device_id i2sbus_match[] = { - { .name = "i2s" }, - { } -}; - -MODULE_DEVICE_TABLE(of, i2sbus_match); - -static int alloc_dbdma_descriptor_ring(struct i2sbus_dev *i2sdev, - struct dbdma_command_mem *r, - int numcmds) -{ - /* one more for rounding, one for branch back, one for stop command */ - r->size = (numcmds + 3) * sizeof(struct dbdma_cmd); - /* We use the PCI APIs for now until the generic one gets fixed - * enough or until we get some macio-specific versions - */ - r->space = dma_alloc_coherent( - &macio_get_pci_dev(i2sdev->macio)->dev, - r->size, - &r->bus_addr, - GFP_KERNEL); - - if (!r->space) return -ENOMEM; - - memset(r->space, 0, r->size); - r->cmds = (void*)DBDMA_ALIGN(r->space); - r->bus_cmd_start = r->bus_addr + - (dma_addr_t)((char*)r->cmds - (char*)r->space); - - return 0; -} - -static void free_dbdma_descriptor_ring(struct i2sbus_dev *i2sdev, - struct dbdma_command_mem *r) -{ - if (!r->space) return; - - dma_free_coherent(&macio_get_pci_dev(i2sdev->macio)->dev, - r->size, r->space, r->bus_addr); -} - -static void i2sbus_release_dev(struct device *dev) -{ - struct i2sbus_dev *i2sdev; - int i; - - i2sdev = container_of(dev, struct i2sbus_dev, sound.ofdev.dev); - - if (i2sdev->intfregs) iounmap(i2sdev->intfregs); - if (i2sdev->out.dbdma) iounmap(i2sdev->out.dbdma); - if (i2sdev->in.dbdma) iounmap(i2sdev->in.dbdma); - for (i = aoa_resource_i2smmio; i <= aoa_resource_rxdbdma; i++) - if (i2sdev->allocated_resource[i]) - release_and_free_resource(i2sdev->allocated_resource[i]); - free_dbdma_descriptor_ring(i2sdev, &i2sdev->out.dbdma_ring); - free_dbdma_descriptor_ring(i2sdev, &i2sdev->in.dbdma_ring); - for (i = aoa_resource_i2smmio; i <= aoa_resource_rxdbdma; i++) - free_irq(i2sdev->interrupts[i], i2sdev); - i2sbus_control_remove_dev(i2sdev->control, i2sdev); - mutex_destroy(&i2sdev->lock); - kfree(i2sdev); -} - -static irqreturn_t i2sbus_bus_intr(int irq, void *devid) -{ - struct i2sbus_dev *dev = devid; - u32 intreg; - - spin_lock(&dev->low_lock); - intreg = in_le32(&dev->intfregs->intr_ctl); - - /* acknowledge interrupt reasons */ - out_le32(&dev->intfregs->intr_ctl, intreg); - - spin_unlock(&dev->low_lock); - - return IRQ_HANDLED; -} - - -/* - * XXX FIXME: We test the layout_id's here to get the proper way of - * mapping in various registers, thanks to bugs in Apple device-trees. - * We could instead key off the machine model and the name of the i2s - * node (i2s-a). This we'll do when we move it all to macio_asic.c - * and have that export items for each sub-node too. - */ -static int i2sbus_get_and_fixup_rsrc(struct device_node *np, int index, - int layout, struct resource *res) -{ - struct device_node *parent; - int pindex, rc = -ENXIO; - const u32 *reg; - - /* Machines with layout 76 and 36 (K2 based) have a weird device - * tree what we need to special case. - * Normal machines just fetch the resource from the i2s-X node. - * Darwin further divides normal machines into old and new layouts - * with a subtely different code path but that doesn't seem necessary - * in practice, they just bloated it. In addition, even on our K2 - * case the i2s-modem node, if we ever want to handle it, uses the - * normal layout - */ - if (layout != 76 && layout != 36) - return of_address_to_resource(np, index, res); - - parent = of_get_parent(np); - pindex = (index == aoa_resource_i2smmio) ? 0 : 1; - rc = of_address_to_resource(parent, pindex, res); - if (rc) - goto bail; - reg = of_get_property(np, "reg", NULL); - if (reg == NULL) { - rc = -ENXIO; - goto bail; - } - res->start += reg[index * 2]; - res->end = res->start + reg[index * 2 + 1] - 1; - bail: - of_node_put(parent); - return rc; -} - -/* FIXME: look at device node refcounting */ -static int i2sbus_add_dev(struct macio_dev *macio, - struct i2sbus_control *control, - struct device_node *np) -{ - struct i2sbus_dev *dev; - struct device_node *child = NULL, *sound = NULL; - struct resource *r; - int i, layout = 0, rlen, ok = force; - static const char *rnames[] = { "i2sbus: %s (control)", - "i2sbus: %s (tx)", - "i2sbus: %s (rx)" }; - static irq_handler_t ints[] = { - i2sbus_bus_intr, - i2sbus_tx_intr, - i2sbus_rx_intr - }; - - if (strlen(np->name) != 5) - return 0; - if (strncmp(np->name, "i2s-", 4)) - return 0; - - dev = kzalloc(sizeof(struct i2sbus_dev), GFP_KERNEL); - if (!dev) - return 0; - - i = 0; - while ((child = of_get_next_child(np, child))) { - if (strcmp(child->name, "sound") == 0) { - i++; - sound = child; - } - } - if (i == 1) { - const u32 *id = of_get_property(sound, "layout-id", NULL); - - if (id) { - layout = *id; - snprintf(dev->sound.modalias, 32, - "sound-layout-%d", layout); - ok = 1; - } else { - id = of_get_property(sound, "device-id", NULL); - /* - * We probably cannot handle all device-id machines, - * so restrict to those we do handle for now. - */ - if (id && (*id == 22 || *id == 14 || *id == 35)) { - snprintf(dev->sound.modalias, 32, - "aoa-device-id-%d", *id); - ok = 1; - layout = -1; - } - } - } - /* for the time being, until we can handle non-layout-id - * things in some fabric, refuse to attach if there is no - * layout-id property or we haven't been forced to attach. - * When there are two i2s busses and only one has a layout-id, - * then this depends on the order, but that isn't important - * either as the second one in that case is just a modem. */ - if (!ok) { - kfree(dev); - return -ENODEV; - } - - mutex_init(&dev->lock); - spin_lock_init(&dev->low_lock); - dev->sound.ofdev.archdata.dma_mask = macio->ofdev.archdata.dma_mask; - dev->sound.ofdev.dev.of_node = np; - dev->sound.ofdev.dev.dma_mask = &dev->sound.ofdev.archdata.dma_mask; - dev->sound.ofdev.dev.parent = &macio->ofdev.dev; - dev->sound.ofdev.dev.release = i2sbus_release_dev; - dev->sound.attach_codec = i2sbus_attach_codec; - dev->sound.detach_codec = i2sbus_detach_codec; - dev->sound.pcmid = -1; - dev->macio = macio; - dev->control = control; - dev->bus_number = np->name[4] - 'a'; - INIT_LIST_HEAD(&dev->sound.codec_list); - - for (i = aoa_resource_i2smmio; i <= aoa_resource_rxdbdma; i++) { - dev->interrupts[i] = -1; - snprintf(dev->rnames[i], sizeof(dev->rnames[i]), - rnames[i], np->name); - } - for (i = aoa_resource_i2smmio; i <= aoa_resource_rxdbdma; i++) { - int irq = irq_of_parse_and_map(np, i); - if (request_irq(irq, ints[i], 0, dev->rnames[i], dev)) - goto err; - dev->interrupts[i] = irq; - } - - - /* Resource handling is problematic as some device-trees contain - * useless crap (ugh ugh ugh). We work around that here by calling - * specific functions for calculating the appropriate resources. - * - * This will all be moved to macio_asic.c at one point - */ - for (i = aoa_resource_i2smmio; i <= aoa_resource_rxdbdma; i++) { - if (i2sbus_get_and_fixup_rsrc(np,i,layout,&dev->resources[i])) - goto err; - /* If only we could use our resource dev->resources[i]... - * but request_resource doesn't know about parents and - * contained resources... - */ - dev->allocated_resource[i] = - request_mem_region(dev->resources[i].start, - resource_size(&dev->resources[i]), - dev->rnames[i]); - if (!dev->allocated_resource[i]) { - printk(KERN_ERR "i2sbus: failed to claim resource %d!\n", i); - goto err; - } - } - - r = &dev->resources[aoa_resource_i2smmio]; - rlen = resource_size(r); - if (rlen < sizeof(struct i2s_interface_regs)) - goto err; - dev->intfregs = ioremap(r->start, rlen); - - r = &dev->resources[aoa_resource_txdbdma]; - rlen = resource_size(r); - if (rlen < sizeof(struct dbdma_regs)) - goto err; - dev->out.dbdma = ioremap(r->start, rlen); - - r = &dev->resources[aoa_resource_rxdbdma]; - rlen = resource_size(r); - if (rlen < sizeof(struct dbdma_regs)) - goto err; - dev->in.dbdma = ioremap(r->start, rlen); - - if (!dev->intfregs || !dev->out.dbdma || !dev->in.dbdma) - goto err; - - if (alloc_dbdma_descriptor_ring(dev, &dev->out.dbdma_ring, - MAX_DBDMA_COMMANDS)) - goto err; - if (alloc_dbdma_descriptor_ring(dev, &dev->in.dbdma_ring, - MAX_DBDMA_COMMANDS)) - goto err; - - if (i2sbus_control_add_dev(dev->control, dev)) { - printk(KERN_ERR "i2sbus: control layer didn't like bus\n"); - goto err; - } - - if (soundbus_add_one(&dev->sound)) { - printk(KERN_DEBUG "i2sbus: device registration error!\n"); - goto err; - } - - /* enable this cell */ - i2sbus_control_cell(dev->control, dev, 1); - i2sbus_control_enable(dev->control, dev); - i2sbus_control_clock(dev->control, dev, 1); - - return 1; - err: - for (i=0;i<3;i++) - if (dev->interrupts[i] != -1) - free_irq(dev->interrupts[i], dev); - free_dbdma_descriptor_ring(dev, &dev->out.dbdma_ring); - free_dbdma_descriptor_ring(dev, &dev->in.dbdma_ring); - if (dev->intfregs) iounmap(dev->intfregs); - if (dev->out.dbdma) iounmap(dev->out.dbdma); - if (dev->in.dbdma) iounmap(dev->in.dbdma); - for (i=0;i<3;i++) - if (dev->allocated_resource[i]) - release_and_free_resource(dev->allocated_resource[i]); - mutex_destroy(&dev->lock); - kfree(dev); - return 0; -} - -static int i2sbus_probe(struct macio_dev* dev, const struct of_device_id *match) -{ - struct device_node *np = NULL; - int got = 0, err; - struct i2sbus_control *control = NULL; - - err = i2sbus_control_init(dev, &control); - if (err) - return err; - if (!control) { - printk(KERN_ERR "i2sbus_control_init API breakage\n"); - return -ENODEV; - } - - while ((np = of_get_next_child(dev->ofdev.dev.of_node, np))) { - if (of_device_is_compatible(np, "i2sbus") || - of_device_is_compatible(np, "i2s-modem")) { - got += i2sbus_add_dev(dev, control, np); - } - } - - if (!got) { - /* found none, clean up */ - i2sbus_control_destroy(control); - return -ENODEV; - } - - dev_set_drvdata(&dev->ofdev.dev, control); - - return 0; -} - -static int i2sbus_remove(struct macio_dev* dev) -{ - struct i2sbus_control *control = dev_get_drvdata(&dev->ofdev.dev); - struct i2sbus_dev *i2sdev, *tmp; - - list_for_each_entry_safe(i2sdev, tmp, &control->list, item) - soundbus_remove_one(&i2sdev->sound); - - return 0; -} - -#ifdef CONFIG_PM -static int i2sbus_suspend(struct macio_dev* dev, pm_message_t state) -{ - struct i2sbus_control *control = dev_get_drvdata(&dev->ofdev.dev); - struct codec_info_item *cii; - struct i2sbus_dev* i2sdev; - int err, ret = 0; - - list_for_each_entry(i2sdev, &control->list, item) { - /* Notify Alsa */ - if (i2sdev->sound.pcm) { - /* Suspend PCM streams */ - snd_pcm_suspend_all(i2sdev->sound.pcm); - } - - /* Notify codecs */ - list_for_each_entry(cii, &i2sdev->sound.codec_list, list) { - err = 0; - if (cii->codec->suspend) - err = cii->codec->suspend(cii, state); - if (err) - ret = err; - } - - /* wait until streams are stopped */ - i2sbus_wait_for_stop_both(i2sdev); - } - - return ret; -} - -static int i2sbus_resume(struct macio_dev* dev) -{ - struct i2sbus_control *control = dev_get_drvdata(&dev->ofdev.dev); - struct codec_info_item *cii; - struct i2sbus_dev* i2sdev; - int err, ret = 0; - - list_for_each_entry(i2sdev, &control->list, item) { - /* reset i2s bus format etc. */ - i2sbus_pcm_prepare_both(i2sdev); - - /* Notify codecs so they can re-initialize */ - list_for_each_entry(cii, &i2sdev->sound.codec_list, list) { - err = 0; - if (cii->codec->resume) - err = cii->codec->resume(cii); - if (err) - ret = err; - } - } - - return ret; -} -#endif /* CONFIG_PM */ - -static int i2sbus_shutdown(struct macio_dev* dev) -{ - return 0; -} - -static struct macio_driver i2sbus_drv = { - .driver = { - .name = "soundbus-i2s", - .owner = THIS_MODULE, - .of_match_table = i2sbus_match, - }, - .probe = i2sbus_probe, - .remove = i2sbus_remove, -#ifdef CONFIG_PM - .suspend = i2sbus_suspend, - .resume = i2sbus_resume, -#endif - .shutdown = i2sbus_shutdown, -}; - -static int __init soundbus_i2sbus_init(void) -{ - return macio_register_driver(&i2sbus_drv); -} - -static void __exit soundbus_i2sbus_exit(void) -{ - macio_unregister_driver(&i2sbus_drv); -} - -module_init(soundbus_i2sbus_init); -module_exit(soundbus_i2sbus_exit); diff --git a/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/i2sbus.h b/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/i2sbus.h deleted file mode 100644 index befefd99..00000000 --- a/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/i2sbus.h +++ /dev/null @@ -1,126 +0,0 @@ -/* - * i2sbus driver -- private definitions - * - * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> - * - * GPL v2, can be found in COPYING. - */ -#ifndef __I2SBUS_H -#define __I2SBUS_H -#include <linux/interrupt.h> -#include <linux/spinlock.h> -#include <linux/mutex.h> -#include <linux/completion.h> - -#include <sound/pcm.h> - -#include <asm/prom.h> -#include <asm/pmac_feature.h> -#include <asm/dbdma.h> - -#include "interface.h" -#include "../soundbus.h" - -struct i2sbus_control { - struct list_head list; - struct macio_chip *macio; -}; - -#define MAX_DBDMA_COMMANDS 32 - -struct dbdma_command_mem { - dma_addr_t bus_addr; - dma_addr_t bus_cmd_start; - struct dbdma_cmd *cmds; - void *space; - int size; - u32 running:1; - u32 stopping:1; -}; - -struct pcm_info { - u32 created:1, /* has this direction been created with alsa? */ - active:1; /* is this stream active? */ - /* runtime information */ - struct snd_pcm_substream *substream; - int current_period; - u32 frame_count; - struct dbdma_command_mem dbdma_ring; - volatile struct dbdma_regs __iomem *dbdma; - struct completion *stop_completion; -}; - -enum { - aoa_resource_i2smmio = 0, - aoa_resource_txdbdma, - aoa_resource_rxdbdma, -}; - -struct i2sbus_dev { - struct soundbus_dev sound; - struct macio_dev *macio; - struct i2sbus_control *control; - volatile struct i2s_interface_regs __iomem *intfregs; - - struct resource resources[3]; - struct resource *allocated_resource[3]; - int interrupts[3]; - char rnames[3][32]; - - /* info about currently active substreams */ - struct pcm_info out, in; - snd_pcm_format_t format; - unsigned int rate; - - /* list for a single controller */ - struct list_head item; - /* number of bus on controller */ - int bus_number; - /* for use by control layer */ - struct pmf_function *enable, - *cell_enable, - *cell_disable, - *clock_enable, - *clock_disable; - - /* locks */ - /* spinlock for low-level interrupt locking */ - spinlock_t low_lock; - /* mutex for high-level consistency */ - struct mutex lock; -}; - -#define soundbus_dev_to_i2sbus_dev(sdev) \ - container_of(sdev, struct i2sbus_dev, sound) - -/* pcm specific functions */ -extern int -i2sbus_attach_codec(struct soundbus_dev *dev, struct snd_card *card, - struct codec_info *ci, void *data); -extern void -i2sbus_detach_codec(struct soundbus_dev *dev, void *data); -extern irqreturn_t -i2sbus_tx_intr(int irq, void *devid); -extern irqreturn_t -i2sbus_rx_intr(int irq, void *devid); - -extern void i2sbus_wait_for_stop_both(struct i2sbus_dev *i2sdev); -extern void i2sbus_pcm_prepare_both(struct i2sbus_dev *i2sdev); - -/* control specific functions */ -extern int i2sbus_control_init(struct macio_dev* dev, - struct i2sbus_control **c); -extern void i2sbus_control_destroy(struct i2sbus_control *c); -extern int i2sbus_control_add_dev(struct i2sbus_control *c, - struct i2sbus_dev *i2sdev); -extern void i2sbus_control_remove_dev(struct i2sbus_control *c, - struct i2sbus_dev *i2sdev); -extern int i2sbus_control_enable(struct i2sbus_control *c, - struct i2sbus_dev *i2sdev); -extern int i2sbus_control_cell(struct i2sbus_control *c, - struct i2sbus_dev *i2sdev, - int enable); -extern int i2sbus_control_clock(struct i2sbus_control *c, - struct i2sbus_dev *i2sdev, - int enable); -#endif /* __I2SBUS_H */ diff --git a/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/interface.h b/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/interface.h deleted file mode 100644 index c6b5f545..00000000 --- a/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/interface.h +++ /dev/null @@ -1,187 +0,0 @@ -/* - * i2sbus driver -- interface register definitions - * - * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> - * - * GPL v2, can be found in COPYING. - */ -#ifndef __I2SBUS_INTERFACE_H -#define __I2SBUS_INTERFACE_H - -/* i2s bus control registers, at least what we know about them */ - -#define __PAD(m,n) u8 __pad##m[n] -#define _PAD(line, n) __PAD(line, n) -#define PAD(n) _PAD(__LINE__, (n)) -struct i2s_interface_regs { - __le32 intr_ctl; /* 0x00 */ - PAD(12); - __le32 serial_format; /* 0x10 */ - PAD(12); - __le32 codec_msg_out; /* 0x20 */ - PAD(12); - __le32 codec_msg_in; /* 0x30 */ - PAD(12); - __le32 frame_count; /* 0x40 */ - PAD(12); - __le32 frame_match; /* 0x50 */ - PAD(12); - __le32 data_word_sizes; /* 0x60 */ - PAD(12); - __le32 peak_level_sel; /* 0x70 */ - PAD(12); - __le32 peak_level_in0; /* 0x80 */ - PAD(12); - __le32 peak_level_in1; /* 0x90 */ - PAD(12); - /* total size: 0x100 bytes */ -} __attribute__((__packed__)); - -/* interrupt register is just a bitfield with - * interrupt enable and pending bits */ -#define I2S_REG_INTR_CTL 0x00 -# define I2S_INT_FRAME_COUNT (1<<31) -# define I2S_PENDING_FRAME_COUNT (1<<30) -# define I2S_INT_MESSAGE_FLAG (1<<29) -# define I2S_PENDING_MESSAGE_FLAG (1<<28) -# define I2S_INT_NEW_PEAK (1<<27) -# define I2S_PENDING_NEW_PEAK (1<<26) -# define I2S_INT_CLOCKS_STOPPED (1<<25) -# define I2S_PENDING_CLOCKS_STOPPED (1<<24) -# define I2S_INT_EXTERNAL_SYNC_ERROR (1<<23) -# define I2S_PENDING_EXTERNAL_SYNC_ERROR (1<<22) -# define I2S_INT_EXTERNAL_SYNC_OK (1<<21) -# define I2S_PENDING_EXTERNAL_SYNC_OK (1<<20) -# define I2S_INT_NEW_SAMPLE_RATE (1<<19) -# define I2S_PENDING_NEW_SAMPLE_RATE (1<<18) -# define I2S_INT_STATUS_FLAG (1<<17) -# define I2S_PENDING_STATUS_FLAG (1<<16) - -/* serial format register is more interesting :) - * It contains: - * - clock source - * - MClk divisor - * - SClk divisor - * - SClk master flag - * - serial format (sony, i2s 64x, i2s 32x, dav, silabs) - * - external sample frequency interrupt (don't understand) - * - external sample frequency - */ -#define I2S_REG_SERIAL_FORMAT 0x10 -/* clock source. You get either 18.432, 45.1584 or 49.1520 MHz */ -# define I2S_SF_CLOCK_SOURCE_SHIFT 30 -# define I2S_SF_CLOCK_SOURCE_MASK (3<<I2S_SF_CLOCK_SOURCE_SHIFT) -# define I2S_SF_CLOCK_SOURCE_18MHz (0<<I2S_SF_CLOCK_SOURCE_SHIFT) -# define I2S_SF_CLOCK_SOURCE_45MHz (1<<I2S_SF_CLOCK_SOURCE_SHIFT) -# define I2S_SF_CLOCK_SOURCE_49MHz (2<<I2S_SF_CLOCK_SOURCE_SHIFT) -/* also, let's define the exact clock speeds here, in Hz */ -#define I2S_CLOCK_SPEED_18MHz 18432000 -#define I2S_CLOCK_SPEED_45MHz 45158400 -#define I2S_CLOCK_SPEED_49MHz 49152000 -/* MClk is the clock that drives the codec, usually called its 'system clock'. - * It is derived by taking only every 'divisor' tick of the clock. - */ -# define I2S_SF_MCLKDIV_SHIFT 24 -# define I2S_SF_MCLKDIV_MASK (0x1F<<I2S_SF_MCLKDIV_SHIFT) -# define I2S_SF_MCLKDIV_1 (0x14<<I2S_SF_MCLKDIV_SHIFT) -# define I2S_SF_MCLKDIV_3 (0x13<<I2S_SF_MCLKDIV_SHIFT) -# define I2S_SF_MCLKDIV_5 (0x12<<I2S_SF_MCLKDIV_SHIFT) -# define I2S_SF_MCLKDIV_14 (0x0E<<I2S_SF_MCLKDIV_SHIFT) -# define I2S_SF_MCLKDIV_OTHER(div) (((div/2-1)<<I2S_SF_MCLKDIV_SHIFT)&I2S_SF_MCLKDIV_MASK) -static inline int i2s_sf_mclkdiv(int div, int *out) -{ - int d; - - switch(div) { - case 1: *out |= I2S_SF_MCLKDIV_1; return 0; - case 3: *out |= I2S_SF_MCLKDIV_3; return 0; - case 5: *out |= I2S_SF_MCLKDIV_5; return 0; - case 14: *out |= I2S_SF_MCLKDIV_14; return 0; - default: - if (div%2) return -1; - d = div/2-1; - if (d == 0x14 || d == 0x13 || d == 0x12 || d == 0x0E) - return -1; - *out |= I2S_SF_MCLKDIV_OTHER(div); - return 0; - } -} -/* SClk is the clock that drives the i2s wire bus. Note that it is - * derived from the MClk above by taking only every 'divisor' tick - * of MClk. - */ -# define I2S_SF_SCLKDIV_SHIFT 20 -# define I2S_SF_SCLKDIV_MASK (0xF<<I2S_SF_SCLKDIV_SHIFT) -# define I2S_SF_SCLKDIV_1 (8<<I2S_SF_SCLKDIV_SHIFT) -# define I2S_SF_SCLKDIV_3 (9<<I2S_SF_SCLKDIV_SHIFT) -# define I2S_SF_SCLKDIV_OTHER(div) (((div/2-1)<<I2S_SF_SCLKDIV_SHIFT)&I2S_SF_SCLKDIV_MASK) -static inline int i2s_sf_sclkdiv(int div, int *out) -{ - int d; - - switch(div) { - case 1: *out |= I2S_SF_SCLKDIV_1; return 0; - case 3: *out |= I2S_SF_SCLKDIV_3; return 0; - default: - if (div%2) return -1; - d = div/2-1; - if (d == 8 || d == 9) return -1; - *out |= I2S_SF_SCLKDIV_OTHER(div); - return 0; - } -} -# define I2S_SF_SCLK_MASTER (1<<19) -/* serial format is the way the data is put to the i2s wire bus */ -# define I2S_SF_SERIAL_FORMAT_SHIFT 16 -# define I2S_SF_SERIAL_FORMAT_MASK (7<<I2S_SF_SERIAL_FORMAT_SHIFT) -# define I2S_SF_SERIAL_FORMAT_SONY (0<<I2S_SF_SERIAL_FORMAT_SHIFT) -# define I2S_SF_SERIAL_FORMAT_I2S_64X (1<<I2S_SF_SERIAL_FORMAT_SHIFT) -# define I2S_SF_SERIAL_FORMAT_I2S_32X (2<<I2S_SF_SERIAL_FORMAT_SHIFT) -# define I2S_SF_SERIAL_FORMAT_I2S_DAV (4<<I2S_SF_SERIAL_FORMAT_SHIFT) -# define I2S_SF_SERIAL_FORMAT_I2S_SILABS (5<<I2S_SF_SERIAL_FORMAT_SHIFT) -/* unknown */ -# define I2S_SF_EXT_SAMPLE_FREQ_INT_SHIFT 12 -# define I2S_SF_EXT_SAMPLE_FREQ_INT_MASK (0xF<<I2S_SF_SAMPLE_FREQ_INT_SHIFT) -/* probably gives external frequency? */ -# define I2S_SF_EXT_SAMPLE_FREQ_MASK 0xFFF - -/* used to send codec messages, but how isn't clear */ -#define I2S_REG_CODEC_MSG_OUT 0x20 - -/* used to receive codec messages, but how isn't clear */ -#define I2S_REG_CODEC_MSG_IN 0x30 - -/* frame count reg isn't clear to me yet, but probably useful */ -#define I2S_REG_FRAME_COUNT 0x40 - -/* program to some value, and get interrupt if frame count reaches it */ -#define I2S_REG_FRAME_MATCH 0x50 - -/* this register describes how the bus transfers data */ -#define I2S_REG_DATA_WORD_SIZES 0x60 -/* number of interleaved input channels */ -# define I2S_DWS_NUM_CHANNELS_IN_SHIFT 24 -# define I2S_DWS_NUM_CHANNELS_IN_MASK (0x1F<<I2S_DWS_NUM_CHANNELS_IN_SHIFT) -/* word size of input data */ -# define I2S_DWS_DATA_IN_SIZE_SHIFT 16 -# define I2S_DWS_DATA_IN_16BIT (0<<I2S_DWS_DATA_IN_SIZE_SHIFT) -# define I2S_DWS_DATA_IN_24BIT (3<<I2S_DWS_DATA_IN_SIZE_SHIFT) -/* number of interleaved output channels */ -# define I2S_DWS_NUM_CHANNELS_OUT_SHIFT 8 -# define I2S_DWS_NUM_CHANNELS_OUT_MASK (0x1F<<I2S_DWS_NUM_CHANNELS_OUT_SHIFT) -/* word size of output data */ -# define I2S_DWS_DATA_OUT_SIZE_SHIFT 0 -# define I2S_DWS_DATA_OUT_16BIT (0<<I2S_DWS_DATA_OUT_SIZE_SHIFT) -# define I2S_DWS_DATA_OUT_24BIT (3<<I2S_DWS_DATA_OUT_SIZE_SHIFT) - - -/* unknown */ -#define I2S_REG_PEAK_LEVEL_SEL 0x70 - -/* unknown */ -#define I2S_REG_PEAK_LEVEL_IN0 0x80 - -/* unknown */ -#define I2S_REG_PEAK_LEVEL_IN1 0x90 - -#endif /* __I2SBUS_INTERFACE_H */ diff --git a/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/pcm.c b/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/pcm.c deleted file mode 100644 index 19491ed9..00000000 --- a/ANDROID_3.4.5/sound/aoa/soundbus/i2sbus/pcm.c +++ /dev/null @@ -1,1064 +0,0 @@ -/* - * i2sbus driver -- pcm routines - * - * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> - * - * GPL v2, can be found in COPYING. - */ - -#include <asm/io.h> -#include <linux/delay.h> -#include <linux/slab.h> -#include <sound/core.h> -#include <asm/macio.h> -#include <linux/pci.h> -#include <linux/module.h> -#include "../soundbus.h" -#include "i2sbus.h" - -static inline void get_pcm_info(struct i2sbus_dev *i2sdev, int in, - struct pcm_info **pi, struct pcm_info **other) -{ - if (in) { - if (pi) - *pi = &i2sdev->in; - if (other) - *other = &i2sdev->out; - } else { - if (pi) - *pi = &i2sdev->out; - if (other) - *other = &i2sdev->in; - } -} - -static int clock_and_divisors(int mclk, int sclk, int rate, int *out) -{ - /* sclk must be derived from mclk! */ - if (mclk % sclk) - return -1; - /* derive sclk register value */ - if (i2s_sf_sclkdiv(mclk / sclk, out)) - return -1; - - if (I2S_CLOCK_SPEED_18MHz % (rate * mclk) == 0) { - if (!i2s_sf_mclkdiv(I2S_CLOCK_SPEED_18MHz / (rate * mclk), out)) { - *out |= I2S_SF_CLOCK_SOURCE_18MHz; - return 0; - } - } - if (I2S_CLOCK_SPEED_45MHz % (rate * mclk) == 0) { - if (!i2s_sf_mclkdiv(I2S_CLOCK_SPEED_45MHz / (rate * mclk), out)) { - *out |= I2S_SF_CLOCK_SOURCE_45MHz; - return 0; - } - } - if (I2S_CLOCK_SPEED_49MHz % (rate * mclk) == 0) { - if (!i2s_sf_mclkdiv(I2S_CLOCK_SPEED_49MHz / (rate * mclk), out)) { - *out |= I2S_SF_CLOCK_SOURCE_49MHz; - return 0; - } - } - return -1; -} - -#define CHECK_RATE(rate) \ - do { if (rates & SNDRV_PCM_RATE_ ##rate) { \ - int dummy; \ - if (clock_and_divisors(sysclock_factor, \ - bus_factor, rate, &dummy)) \ - rates &= ~SNDRV_PCM_RATE_ ##rate; \ - } } while (0) - -static int i2sbus_pcm_open(struct i2sbus_dev *i2sdev, int in) -{ - struct pcm_info *pi, *other; - struct soundbus_dev *sdev; - int masks_inited = 0, err; - struct codec_info_item *cii, *rev; - struct snd_pcm_hardware *hw; - u64 formats = 0; - unsigned int rates = 0; - struct transfer_info v; - int result = 0; - int bus_factor = 0, sysclock_factor = 0; - int found_this; - - mutex_lock(&i2sdev->lock); - - get_pcm_info(i2sdev, in, &pi, &other); - - hw = &pi->substream->runtime->hw; - sdev = &i2sdev->sound; - - if (pi->active) { - /* alsa messed up */ - result = -EBUSY; - goto out_unlock; - } - - /* we now need to assign the hw */ - list_for_each_entry(cii, &sdev->codec_list, list) { - struct transfer_info *ti = cii->codec->transfers; - bus_factor = cii->codec->bus_factor; - sysclock_factor = cii->codec->sysclock_factor; - while (ti->formats && ti->rates) { - v = *ti; - if (ti->transfer_in == in - && cii->codec->usable(cii, ti, &v)) { - if (masks_inited) { - formats &= v.formats; - rates &= v.rates; - } else { - formats = v.formats; - rates = v.rates; - masks_inited = 1; - } - } - ti++; - } - } - if (!masks_inited || !bus_factor || !sysclock_factor) { - result = -ENODEV; - goto out_unlock; - } - /* bus dependent stuff */ - hw->info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_RESUME | - SNDRV_PCM_INFO_JOINT_DUPLEX; - - CHECK_RATE(5512); - CHECK_RATE(8000); - CHECK_RATE(11025); - CHECK_RATE(16000); - CHECK_RATE(22050); - CHECK_RATE(32000); - CHECK_RATE(44100); - CHECK_RATE(48000); - CHECK_RATE(64000); - CHECK_RATE(88200); - CHECK_RATE(96000); - CHECK_RATE(176400); - CHECK_RATE(192000); - hw->rates = rates; - - /* well. the codec might want 24 bits only, and we'll - * ever only transfer 24 bits, but they are top-aligned! - * So for alsa, we claim that we're doing full 32 bit - * while in reality we'll ignore the lower 8 bits of - * that when doing playback (they're transferred as 0 - * as far as I know, no codecs we have are 32-bit capable - * so I can't really test) and when doing recording we'll - * always have those lower 8 bits recorded as 0 */ - if (formats & SNDRV_PCM_FMTBIT_S24_BE) - formats |= SNDRV_PCM_FMTBIT_S32_BE; - if (formats & SNDRV_PCM_FMTBIT_U24_BE) - formats |= SNDRV_PCM_FMTBIT_U32_BE; - /* now mask off what we can support. I suppose we could - * also support S24_3LE and some similar formats, but I - * doubt there's a codec that would be able to use that, - * so we don't support it here. */ - hw->formats = formats & (SNDRV_PCM_FMTBIT_S16_BE | - SNDRV_PCM_FMTBIT_U16_BE | - SNDRV_PCM_FMTBIT_S32_BE | - SNDRV_PCM_FMTBIT_U32_BE); - - /* we need to set the highest and lowest rate possible. - * These are the highest and lowest rates alsa can - * support properly in its bitfield. - * Below, we'll use that to restrict to the rate - * currently in use (if any). */ - hw->rate_min = 5512; - hw->rate_max = 192000; - /* if the other stream is active, then we can only - * support what it is currently using. - * FIXME: I lied. This comment is wrong. We can support - * anything that works with the same serial format, ie. - * when recording 24 bit sound we can well play 16 bit - * sound at the same time iff using the same transfer mode. - */ - if (other->active) { - /* FIXME: is this guaranteed by the alsa api? */ - hw->formats &= (1ULL << i2sdev->format); - /* see above, restrict rates to the one we already have */ - hw->rate_min = i2sdev->rate; - hw->rate_max = i2sdev->rate; - } - - hw->channels_min = 2; - hw->channels_max = 2; - /* these are somewhat arbitrary */ - hw->buffer_bytes_max = 131072; - hw->period_bytes_min = 256; - hw->period_bytes_max = 16384; - hw->periods_min = 3; - hw->periods_max = MAX_DBDMA_COMMANDS; - err = snd_pcm_hw_constraint_integer(pi->substream->runtime, - SNDRV_PCM_HW_PARAM_PERIODS); - if (err < 0) { - result = err; - goto out_unlock; - } - list_for_each_entry(cii, &sdev->codec_list, list) { - if (cii->codec->open) { - err = cii->codec->open(cii, pi->substream); - if (err) { - result = err; - /* unwind */ - found_this = 0; - list_for_each_entry_reverse(rev, - &sdev->codec_list, list) { - if (found_this && rev->codec->close) { - rev->codec->close(rev, - pi->substream); - } - if (rev == cii) - found_this = 1; - } - goto out_unlock; - } - } - } - - out_unlock: - mutex_unlock(&i2sdev->lock); - return result; -} - -#undef CHECK_RATE - -static int i2sbus_pcm_close(struct i2sbus_dev *i2sdev, int in) -{ - struct codec_info_item *cii; - struct pcm_info *pi; - int err = 0, tmp; - - mutex_lock(&i2sdev->lock); - - get_pcm_info(i2sdev, in, &pi, NULL); - - list_for_each_entry(cii, &i2sdev->sound.codec_list, list) { - if (cii->codec->close) { - tmp = cii->codec->close(cii, pi->substream); - if (tmp) - err = tmp; - } - } - - pi->substream = NULL; - pi->active = 0; - mutex_unlock(&i2sdev->lock); - return err; -} - -static void i2sbus_wait_for_stop(struct i2sbus_dev *i2sdev, - struct pcm_info *pi) -{ - unsigned long flags; - struct completion done; - long timeout; - - spin_lock_irqsave(&i2sdev->low_lock, flags); - if (pi->dbdma_ring.stopping) { - init_completion(&done); - pi->stop_completion = &done; - spin_unlock_irqrestore(&i2sdev->low_lock, flags); - timeout = wait_for_completion_timeout(&done, HZ); - spin_lock_irqsave(&i2sdev->low_lock, flags); - pi->stop_completion = NULL; - if (timeout == 0) { - /* timeout expired, stop dbdma forcefully */ - printk(KERN_ERR "i2sbus_wait_for_stop: timed out\n"); - /* make sure RUN, PAUSE and S0 bits are cleared */ - out_le32(&pi->dbdma->control, (RUN | PAUSE | 1) << 16); - pi->dbdma_ring.stopping = 0; - timeout = 10; - while (in_le32(&pi->dbdma->status) & ACTIVE) { - if (--timeout <= 0) - break; - udelay(1); - } - } - } - spin_unlock_irqrestore(&i2sdev->low_lock, flags); -} - -#ifdef CONFIG_PM -void i2sbus_wait_for_stop_both(struct i2sbus_dev *i2sdev) -{ - struct pcm_info *pi; - - get_pcm_info(i2sdev, 0, &pi, NULL); - i2sbus_wait_for_stop(i2sdev, pi); - get_pcm_info(i2sdev, 1, &pi, NULL); - i2sbus_wait_for_stop(i2sdev, pi); -} -#endif - -static int i2sbus_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) -{ - return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); -} - -static inline int i2sbus_hw_free(struct snd_pcm_substream *substream, int in) -{ - struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream); - struct pcm_info *pi; - - get_pcm_info(i2sdev, in, &pi, NULL); - if (pi->dbdma_ring.stopping) - i2sbus_wait_for_stop(i2sdev, pi); - snd_pcm_lib_free_pages(substream); - return 0; -} - -static int i2sbus_playback_hw_free(struct snd_pcm_substream *substream) -{ - return i2sbus_hw_free(substream, 0); -} - -static int i2sbus_record_hw_free(struct snd_pcm_substream *substream) -{ - return i2sbus_hw_free(substream, 1); -} - -static int i2sbus_pcm_prepare(struct i2sbus_dev *i2sdev, int in) -{ - /* whee. Hard work now. The user has selected a bitrate - * and bit format, so now we have to program our - * I2S controller appropriately. */ - struct snd_pcm_runtime *runtime; - struct dbdma_cmd *command; - int i, periodsize, nperiods; - dma_addr_t offset; - struct bus_info bi; - struct codec_info_item *cii; - int sfr = 0; /* serial format register */ - int dws = 0; /* data word sizes reg */ - int input_16bit; - struct pcm_info *pi, *other; - int cnt; - int result = 0; - unsigned int cmd, stopaddr; - - mutex_lock(&i2sdev->lock); - - get_pcm_info(i2sdev, in, &pi, &other); - - if (pi->dbdma_ring.running) { - result = -EBUSY; - goto out_unlock; - } - if (pi->dbdma_ring.stopping) - i2sbus_wait_for_stop(i2sdev, pi); - - if (!pi->substream || !pi->substream->runtime) { - result = -EINVAL; - goto out_unlock; - } - - runtime = pi->substream->runtime; - pi->active = 1; - if (other->active && - ((i2sdev->format != runtime->format) - || (i2sdev->rate != runtime->rate))) { - result = -EINVAL; - goto out_unlock; - } - - i2sdev->format = runtime->format; - i2sdev->rate = runtime->rate; - - periodsize = snd_pcm_lib_period_bytes(pi->substream); - nperiods = pi->substream->runtime->periods; - pi->current_period = 0; - - /* generate dbdma command ring first */ - command = pi->dbdma_ring.cmds; - memset(command, 0, (nperiods + 2) * sizeof(struct dbdma_cmd)); - - /* commands to DMA to/from the ring */ - /* - * For input, we need to do a graceful stop; if we abort - * the DMA, we end up with leftover bytes that corrupt - * the next recording. To do this we set the S0 status - * bit and wait for the DMA controller to stop. Each - * command has a branch condition to - * make it branch to a stop command if S0 is set. - * On input we also need to wait for the S7 bit to be - * set before turning off the DMA controller. - * In fact we do the graceful stop for output as well. - */ - offset = runtime->dma_addr; - cmd = (in? INPUT_MORE: OUTPUT_MORE) | BR_IFSET | INTR_ALWAYS; - stopaddr = pi->dbdma_ring.bus_cmd_start + - (nperiods + 1) * sizeof(struct dbdma_cmd); - for (i = 0; i < nperiods; i++, command++, offset += periodsize) { - command->command = cpu_to_le16(cmd); - command->cmd_dep = cpu_to_le32(stopaddr); - command->phy_addr = cpu_to_le32(offset); - command->req_count = cpu_to_le16(periodsize); - } - - /* branch back to beginning of ring */ - command->command = cpu_to_le16(DBDMA_NOP | BR_ALWAYS); - command->cmd_dep = cpu_to_le32(pi->dbdma_ring.bus_cmd_start); - command++; - - /* set stop command */ - command->command = cpu_to_le16(DBDMA_STOP); - - /* ok, let's set the serial format and stuff */ - switch (runtime->format) { - /* 16 bit formats */ - case SNDRV_PCM_FORMAT_S16_BE: - case SNDRV_PCM_FORMAT_U16_BE: - /* FIXME: if we add different bus factors we need to - * do more here!! */ - bi.bus_factor = 0; - list_for_each_entry(cii, &i2sdev->sound.codec_list, list) { - bi.bus_factor = cii->codec->bus_factor; - break; - } - if (!bi.bus_factor) { - result = -ENODEV; - goto out_unlock; - } - input_16bit = 1; - break; - case SNDRV_PCM_FORMAT_S32_BE: - case SNDRV_PCM_FORMAT_U32_BE: - /* force 64x bus speed, otherwise the data cannot be - * transferred quickly enough! */ - bi.bus_factor = 64; - input_16bit = 0; - break; - default: - result = -EINVAL; - goto out_unlock; - } - /* we assume all sysclocks are the same! */ - list_for_each_entry(cii, &i2sdev->sound.codec_list, list) { - bi.sysclock_factor = cii->codec->sysclock_factor; - break; - } - - if (clock_and_divisors(bi.sysclock_factor, - bi.bus_factor, - runtime->rate, - &sfr) < 0) { - result = -EINVAL; - goto out_unlock; - } - switch (bi.bus_factor) { - case 32: - sfr |= I2S_SF_SERIAL_FORMAT_I2S_32X; - break; - case 64: - sfr |= I2S_SF_SERIAL_FORMAT_I2S_64X; - break; - } - /* FIXME: THIS ASSUMES MASTER ALL THE TIME */ - sfr |= I2S_SF_SCLK_MASTER; - - list_for_each_entry(cii, &i2sdev->sound.codec_list, list) { - int err = 0; - if (cii->codec->prepare) - err = cii->codec->prepare(cii, &bi, pi->substream); - if (err) { - result = err; - goto out_unlock; - } - } - /* codecs are fine with it, so set our clocks */ - if (input_16bit) - dws = (2 << I2S_DWS_NUM_CHANNELS_IN_SHIFT) | - (2 << I2S_DWS_NUM_CHANNELS_OUT_SHIFT) | - I2S_DWS_DATA_IN_16BIT | I2S_DWS_DATA_OUT_16BIT; - else - dws = (2 << I2S_DWS_NUM_CHANNELS_IN_SHIFT) | - (2 << I2S_DWS_NUM_CHANNELS_OUT_SHIFT) | - I2S_DWS_DATA_IN_24BIT | I2S_DWS_DATA_OUT_24BIT; - - /* early exit if already programmed correctly */ - /* not locking these is fine since we touch them only in this function */ - if (in_le32(&i2sdev->intfregs->serial_format) == sfr - && in_le32(&i2sdev->intfregs->data_word_sizes) == dws) - goto out_unlock; - - /* let's notify the codecs about clocks going away. - * For now we only do mastering on the i2s cell... */ - list_for_each_entry(cii, &i2sdev->sound.codec_list, list) - if (cii->codec->switch_clock) - cii->codec->switch_clock(cii, CLOCK_SWITCH_PREPARE_SLAVE); - - i2sbus_control_enable(i2sdev->control, i2sdev); - i2sbus_control_cell(i2sdev->control, i2sdev, 1); - - out_le32(&i2sdev->intfregs->intr_ctl, I2S_PENDING_CLOCKS_STOPPED); - - i2sbus_control_clock(i2sdev->control, i2sdev, 0); - - msleep(1); - - /* wait for clock stopped. This can apparently take a while... */ - cnt = 100; - while (cnt-- && - !(in_le32(&i2sdev->intfregs->intr_ctl) & I2S_PENDING_CLOCKS_STOPPED)) { - msleep(5); - } - out_le32(&i2sdev->intfregs->intr_ctl, I2S_PENDING_CLOCKS_STOPPED); - - /* not locking these is fine since we touch them only in this function */ - out_le32(&i2sdev->intfregs->serial_format, sfr); - out_le32(&i2sdev->intfregs->data_word_sizes, dws); - - i2sbus_control_enable(i2sdev->control, i2sdev); - i2sbus_control_cell(i2sdev->control, i2sdev, 1); - i2sbus_control_clock(i2sdev->control, i2sdev, 1); - msleep(1); - - list_for_each_entry(cii, &i2sdev->sound.codec_list, list) - if (cii->codec->switch_clock) - cii->codec->switch_clock(cii, CLOCK_SWITCH_SLAVE); - - out_unlock: - mutex_unlock(&i2sdev->lock); - return result; -} - -#ifdef CONFIG_PM -void i2sbus_pcm_prepare_both(struct i2sbus_dev *i2sdev) -{ - i2sbus_pcm_prepare(i2sdev, 0); - i2sbus_pcm_prepare(i2sdev, 1); -} -#endif - -static int i2sbus_pcm_trigger(struct i2sbus_dev *i2sdev, int in, int cmd) -{ - struct codec_info_item *cii; - struct pcm_info *pi; - int result = 0; - unsigned long flags; - - spin_lock_irqsave(&i2sdev->low_lock, flags); - - get_pcm_info(i2sdev, in, &pi, NULL); - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - if (pi->dbdma_ring.running) { - result = -EALREADY; - goto out_unlock; - } - list_for_each_entry(cii, &i2sdev->sound.codec_list, list) - if (cii->codec->start) - cii->codec->start(cii, pi->substream); - pi->dbdma_ring.running = 1; - - if (pi->dbdma_ring.stopping) { - /* Clear the S0 bit, then see if we stopped yet */ - out_le32(&pi->dbdma->control, 1 << 16); - if (in_le32(&pi->dbdma->status) & ACTIVE) { - /* possible race here? */ - udelay(10); - if (in_le32(&pi->dbdma->status) & ACTIVE) { - pi->dbdma_ring.stopping = 0; - goto out_unlock; /* keep running */ - } - } - } - - /* make sure RUN, PAUSE and S0 bits are cleared */ - out_le32(&pi->dbdma->control, (RUN | PAUSE | 1) << 16); - - /* set branch condition select register */ - out_le32(&pi->dbdma->br_sel, (1 << 16) | 1); - - /* write dma command buffer address to the dbdma chip */ - out_le32(&pi->dbdma->cmdptr, pi->dbdma_ring.bus_cmd_start); - - /* initialize the frame count and current period */ - pi->current_period = 0; - pi->frame_count = in_le32(&i2sdev->intfregs->frame_count); - - /* set the DMA controller running */ - out_le32(&pi->dbdma->control, (RUN << 16) | RUN); - - /* off you go! */ - break; - - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - if (!pi->dbdma_ring.running) { - result = -EALREADY; - goto out_unlock; - } - pi->dbdma_ring.running = 0; - - /* Set the S0 bit to make the DMA branch to the stop cmd */ - out_le32(&pi->dbdma->control, (1 << 16) | 1); - pi->dbdma_ring.stopping = 1; - - list_for_each_entry(cii, &i2sdev->sound.codec_list, list) - if (cii->codec->stop) - cii->codec->stop(cii, pi->substream); - break; - default: - result = -EINVAL; - goto out_unlock; - } - - out_unlock: - spin_unlock_irqrestore(&i2sdev->low_lock, flags); - return result; -} - -static snd_pcm_uframes_t i2sbus_pcm_pointer(struct i2sbus_dev *i2sdev, int in) -{ - struct pcm_info *pi; - u32 fc; - - get_pcm_info(i2sdev, in, &pi, NULL); - - fc = in_le32(&i2sdev->intfregs->frame_count); - fc = fc - pi->frame_count; - - if (fc >= pi->substream->runtime->buffer_size) - fc %= pi->substream->runtime->buffer_size; - return fc; -} - -static inline void handle_interrupt(struct i2sbus_dev *i2sdev, int in) -{ - struct pcm_info *pi; - u32 fc, nframes; - u32 status; - int timeout, i; - int dma_stopped = 0; - struct snd_pcm_runtime *runtime; - - spin_lock(&i2sdev->low_lock); - get_pcm_info(i2sdev, in, &pi, NULL); - if (!pi->dbdma_ring.running && !pi->dbdma_ring.stopping) - goto out_unlock; - - i = pi->current_period; - runtime = pi->substream->runtime; - while (pi->dbdma_ring.cmds[i].xfer_status) { - if (le16_to_cpu(pi->dbdma_ring.cmds[i].xfer_status) & BT) - /* - * BT is the branch taken bit. If it took a branch - * it is because we set the S0 bit to make it - * branch to the stop command. - */ - dma_stopped = 1; - pi->dbdma_ring.cmds[i].xfer_status = 0; - - if (++i >= runtime->periods) { - i = 0; - pi->frame_count += runtime->buffer_size; - } - pi->current_period = i; - - /* - * Check the frame count. The DMA tends to get a bit - * ahead of the frame counter, which confuses the core. - */ - fc = in_le32(&i2sdev->intfregs->frame_count); - nframes = i * runtime->period_size; - if (fc < pi->frame_count + nframes) - pi->frame_count = fc - nframes; - } - - if (dma_stopped) { - timeout = 1000; - for (;;) { - status = in_le32(&pi->dbdma->status); - if (!(status & ACTIVE) && (!in || (status & 0x80))) - break; - if (--timeout <= 0) { - printk(KERN_ERR "i2sbus: timed out " - "waiting for DMA to stop!\n"); - break; - } - udelay(1); - } - - /* Turn off DMA controller, clear S0 bit */ - out_le32(&pi->dbdma->control, (RUN | PAUSE | 1) << 16); - - pi->dbdma_ring.stopping = 0; - if (pi->stop_completion) - complete(pi->stop_completion); - } - - if (!pi->dbdma_ring.running) - goto out_unlock; - spin_unlock(&i2sdev->low_lock); - /* may call _trigger again, hence needs to be unlocked */ - snd_pcm_period_elapsed(pi->substream); - return; - - out_unlock: - spin_unlock(&i2sdev->low_lock); -} - -irqreturn_t i2sbus_tx_intr(int irq, void *devid) -{ - handle_interrupt((struct i2sbus_dev *)devid, 0); - return IRQ_HANDLED; -} - -irqreturn_t i2sbus_rx_intr(int irq, void *devid) -{ - handle_interrupt((struct i2sbus_dev *)devid, 1); - return IRQ_HANDLED; -} - -static int i2sbus_playback_open(struct snd_pcm_substream *substream) -{ - struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream); - - if (!i2sdev) - return -EINVAL; - i2sdev->out.substream = substream; - return i2sbus_pcm_open(i2sdev, 0); -} - -static int i2sbus_playback_close(struct snd_pcm_substream *substream) -{ - struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream); - int err; - - if (!i2sdev) - return -EINVAL; - if (i2sdev->out.substream != substream) - return -EINVAL; - err = i2sbus_pcm_close(i2sdev, 0); - if (!err) - i2sdev->out.substream = NULL; - return err; -} - -static int i2sbus_playback_prepare(struct snd_pcm_substream *substream) -{ - struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream); - - if (!i2sdev) - return -EINVAL; - if (i2sdev->out.substream != substream) - return -EINVAL; - return i2sbus_pcm_prepare(i2sdev, 0); -} - -static int i2sbus_playback_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream); - - if (!i2sdev) - return -EINVAL; - if (i2sdev->out.substream != substream) - return -EINVAL; - return i2sbus_pcm_trigger(i2sdev, 0, cmd); -} - -static snd_pcm_uframes_t i2sbus_playback_pointer(struct snd_pcm_substream - *substream) -{ - struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream); - - if (!i2sdev) - return -EINVAL; - if (i2sdev->out.substream != substream) - return 0; - return i2sbus_pcm_pointer(i2sdev, 0); -} - -static struct snd_pcm_ops i2sbus_playback_ops = { - .open = i2sbus_playback_open, - .close = i2sbus_playback_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = i2sbus_hw_params, - .hw_free = i2sbus_playback_hw_free, - .prepare = i2sbus_playback_prepare, - .trigger = i2sbus_playback_trigger, - .pointer = i2sbus_playback_pointer, -}; - -static int i2sbus_record_open(struct snd_pcm_substream *substream) -{ - struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream); - - if (!i2sdev) - return -EINVAL; - i2sdev->in.substream = substream; - return i2sbus_pcm_open(i2sdev, 1); -} - -static int i2sbus_record_close(struct snd_pcm_substream *substream) -{ - struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream); - int err; - - if (!i2sdev) - return -EINVAL; - if (i2sdev->in.substream != substream) - return -EINVAL; - err = i2sbus_pcm_close(i2sdev, 1); - if (!err) - i2sdev->in.substream = NULL; - return err; -} - -static int i2sbus_record_prepare(struct snd_pcm_substream *substream) -{ - struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream); - - if (!i2sdev) - return -EINVAL; - if (i2sdev->in.substream != substream) - return -EINVAL; - return i2sbus_pcm_prepare(i2sdev, 1); -} - -static int i2sbus_record_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream); - - if (!i2sdev) - return -EINVAL; - if (i2sdev->in.substream != substream) - return -EINVAL; - return i2sbus_pcm_trigger(i2sdev, 1, cmd); -} - -static snd_pcm_uframes_t i2sbus_record_pointer(struct snd_pcm_substream - *substream) -{ - struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream); - - if (!i2sdev) - return -EINVAL; - if (i2sdev->in.substream != substream) - return 0; - return i2sbus_pcm_pointer(i2sdev, 1); -} - -static struct snd_pcm_ops i2sbus_record_ops = { - .open = i2sbus_record_open, - .close = i2sbus_record_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = i2sbus_hw_params, - .hw_free = i2sbus_record_hw_free, - .prepare = i2sbus_record_prepare, - .trigger = i2sbus_record_trigger, - .pointer = i2sbus_record_pointer, -}; - -static void i2sbus_private_free(struct snd_pcm *pcm) -{ - struct i2sbus_dev *i2sdev = snd_pcm_chip(pcm); - struct codec_info_item *p, *tmp; - - i2sdev->sound.pcm = NULL; - i2sdev->out.created = 0; - i2sdev->in.created = 0; - list_for_each_entry_safe(p, tmp, &i2sdev->sound.codec_list, list) { - printk(KERN_ERR "i2sbus: a codec didn't unregister!\n"); - list_del(&p->list); - module_put(p->codec->owner); - kfree(p); - } - soundbus_dev_put(&i2sdev->sound); - module_put(THIS_MODULE); -} - -int -i2sbus_attach_codec(struct soundbus_dev *dev, struct snd_card *card, - struct codec_info *ci, void *data) -{ - int err, in = 0, out = 0; - struct transfer_info *tmp; - struct i2sbus_dev *i2sdev = soundbus_dev_to_i2sbus_dev(dev); - struct codec_info_item *cii; - - if (!dev->pcmname || dev->pcmid == -1) { - printk(KERN_ERR "i2sbus: pcm name and id must be set!\n"); - return -EINVAL; - } - - list_for_each_entry(cii, &dev->codec_list, list) { - if (cii->codec_data == data) - return -EALREADY; - } - - if (!ci->transfers || !ci->transfers->formats - || !ci->transfers->rates || !ci->usable) - return -EINVAL; - - /* we currently code the i2s transfer on the clock, and support only - * 32 and 64 */ - if (ci->bus_factor != 32 && ci->bus_factor != 64) - return -EINVAL; - - /* If you want to fix this, you need to keep track of what transport infos - * are to be used, which codecs they belong to, and then fix all the - * sysclock/busclock stuff above to depend on which is usable */ - list_for_each_entry(cii, &dev->codec_list, list) { - if (cii->codec->sysclock_factor != ci->sysclock_factor) { - printk(KERN_DEBUG - "cannot yet handle multiple different sysclocks!\n"); - return -EINVAL; - } - if (cii->codec->bus_factor != ci->bus_factor) { - printk(KERN_DEBUG - "cannot yet handle multiple different bus clocks!\n"); - return -EINVAL; - } - } - - tmp = ci->transfers; - while (tmp->formats && tmp->rates) { - if (tmp->transfer_in) - in = 1; - else - out = 1; - tmp++; - } - - cii = kzalloc(sizeof(struct codec_info_item), GFP_KERNEL); - if (!cii) { - printk(KERN_DEBUG "i2sbus: failed to allocate cii\n"); - return -ENOMEM; - } - - /* use the private data to point to the codec info */ - cii->sdev = soundbus_dev_get(dev); - cii->codec = ci; - cii->codec_data = data; - - if (!cii->sdev) { - printk(KERN_DEBUG - "i2sbus: failed to get soundbus dev reference\n"); - err = -ENODEV; - goto out_free_cii; - } - - if (!try_module_get(THIS_MODULE)) { - printk(KERN_DEBUG "i2sbus: failed to get module reference!\n"); - err = -EBUSY; - goto out_put_sdev; - } - - if (!try_module_get(ci->owner)) { - printk(KERN_DEBUG - "i2sbus: failed to get module reference to codec owner!\n"); - err = -EBUSY; - goto out_put_this_module; - } - - if (!dev->pcm) { - err = snd_pcm_new(card, dev->pcmname, dev->pcmid, 0, 0, - &dev->pcm); - if (err) { - printk(KERN_DEBUG "i2sbus: failed to create pcm\n"); - goto out_put_ci_module; - } - dev->pcm->dev = &dev->ofdev.dev; - } - - /* ALSA yet again sucks. - * If it is ever fixed, remove this line. See below. */ - out = in = 1; - - if (!i2sdev->out.created && out) { - if (dev->pcm->card != card) { - /* eh? */ - printk(KERN_ERR - "Can't attach same bus to different cards!\n"); - err = -EINVAL; - goto out_put_ci_module; - } - err = snd_pcm_new_stream(dev->pcm, SNDRV_PCM_STREAM_PLAYBACK, 1); - if (err) - goto out_put_ci_module; - snd_pcm_set_ops(dev->pcm, SNDRV_PCM_STREAM_PLAYBACK, - &i2sbus_playback_ops); - i2sdev->out.created = 1; - } - - if (!i2sdev->in.created && in) { - if (dev->pcm->card != card) { - printk(KERN_ERR - "Can't attach same bus to different cards!\n"); - err = -EINVAL; - goto out_put_ci_module; - } - err = snd_pcm_new_stream(dev->pcm, SNDRV_PCM_STREAM_CAPTURE, 1); - if (err) - goto out_put_ci_module; - snd_pcm_set_ops(dev->pcm, SNDRV_PCM_STREAM_CAPTURE, - &i2sbus_record_ops); - i2sdev->in.created = 1; - } - - /* so we have to register the pcm after adding any substream - * to it because alsa doesn't create the devices for the - * substreams when we add them later. - * Therefore, force in and out on both busses (above) and - * register the pcm now instead of just after creating it. - */ - err = snd_device_register(card, dev->pcm); - if (err) { - printk(KERN_ERR "i2sbus: error registering new pcm\n"); - goto out_put_ci_module; - } - /* no errors any more, so let's add this to our list */ - list_add(&cii->list, &dev->codec_list); - - dev->pcm->private_data = i2sdev; - dev->pcm->private_free = i2sbus_private_free; - - /* well, we really should support scatter/gather DMA */ - snd_pcm_lib_preallocate_pages_for_all( - dev->pcm, SNDRV_DMA_TYPE_DEV, - snd_dma_pci_data(macio_get_pci_dev(i2sdev->macio)), - 64 * 1024, 64 * 1024); - - return 0; - out_put_ci_module: - module_put(ci->owner); - out_put_this_module: - module_put(THIS_MODULE); - out_put_sdev: - soundbus_dev_put(dev); - out_free_cii: - kfree(cii); - return err; -} - -void i2sbus_detach_codec(struct soundbus_dev *dev, void *data) -{ - struct codec_info_item *cii = NULL, *i; - - list_for_each_entry(i, &dev->codec_list, list) { - if (i->codec_data == data) { - cii = i; - break; - } - } - if (cii) { - list_del(&cii->list); - module_put(cii->codec->owner); - kfree(cii); - } - /* no more codecs, but still a pcm? */ - if (list_empty(&dev->codec_list) && dev->pcm) { - /* the actual cleanup is done by the callback above! */ - snd_device_free(dev->pcm->card, dev->pcm); - } -} diff --git a/ANDROID_3.4.5/sound/aoa/soundbus/soundbus.h b/ANDROID_3.4.5/sound/aoa/soundbus/soundbus.h deleted file mode 100644 index adecbf36..00000000 --- a/ANDROID_3.4.5/sound/aoa/soundbus/soundbus.h +++ /dev/null @@ -1,204 +0,0 @@ -/* - * soundbus generic definitions - * - * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> - * - * GPL v2, can be found in COPYING. - */ -#ifndef __SOUNDBUS_H -#define __SOUNDBUS_H - -#include <linux/of_device.h> -#include <sound/pcm.h> -#include <linux/list.h> - - -/* When switching from master to slave or the other way around, - * you don't want to have the codec chip acting as clock source - * while the bus still is. - * More importantly, while switch from slave to master, you need - * to turn off the chip's master function first, but then there's - * no clock for a while and other chips might reset, so we notify - * their drivers after having switched. - * The constants here are codec-point of view, so when we switch - * the soundbus to master we tell the codec we're going to switch - * and give it CLOCK_SWITCH_PREPARE_SLAVE! - */ -enum clock_switch { - CLOCK_SWITCH_PREPARE_SLAVE, - CLOCK_SWITCH_PREPARE_MASTER, - CLOCK_SWITCH_SLAVE, - CLOCK_SWITCH_MASTER, - CLOCK_SWITCH_NOTIFY, -}; - -/* information on a transfer the codec can take */ -struct transfer_info { - u64 formats; /* SNDRV_PCM_FMTBIT_* */ - unsigned int rates; /* SNDRV_PCM_RATE_* */ - /* flags */ - u32 transfer_in:1, /* input = 1, output = 0 */ - must_be_clock_source:1; - /* for codecs to distinguish among their TIs */ - int tag; -}; - -struct codec_info_item { - struct codec_info *codec; - void *codec_data; - struct soundbus_dev *sdev; - /* internal, to be used by the soundbus provider */ - struct list_head list; -}; - -/* for prepare, where the codecs need to know - * what we're going to drive the bus with */ -struct bus_info { - /* see below */ - int sysclock_factor; - int bus_factor; -}; - -/* information on the codec itself, plus function pointers */ -struct codec_info { - /* the module this lives in */ - struct module *owner; - - /* supported transfer possibilities, array terminated by - * formats or rates being 0. */ - struct transfer_info *transfers; - - /* Master clock speed factor - * to be used (master clock speed = sysclock_factor * sampling freq) - * Unused if the soundbus provider has no such notion. - */ - int sysclock_factor; - - /* Bus factor, bus clock speed = bus_factor * sampling freq) - * Unused if the soundbus provider has no such notion. - */ - int bus_factor; - - /* operations */ - /* clock switching, see above */ - int (*switch_clock)(struct codec_info_item *cii, - enum clock_switch clock); - - /* called for each transfer_info when the user - * opens the pcm device to determine what the - * hardware can support at this point in time. - * That can depend on other user-switchable controls. - * Return 1 if usable, 0 if not. - * out points to another instance of a transfer_info - * which is initialised to the values in *ti, and - * it's format and rate values can be modified by - * the callback if it is necessary to further restrict - * the formats that can be used at the moment, for - * example when one codec has multiple logical codec - * info structs for multiple inputs. - */ - int (*usable)(struct codec_info_item *cii, - struct transfer_info *ti, - struct transfer_info *out); - - /* called when pcm stream is opened, probably not implemented - * most of the time since it isn't too useful */ - int (*open)(struct codec_info_item *cii, - struct snd_pcm_substream *substream); - - /* called when the pcm stream is closed, at this point - * the user choices can all be unlocked (see below) */ - int (*close)(struct codec_info_item *cii, - struct snd_pcm_substream *substream); - - /* if the codec must forbid some user choices because - * they are not valid with the substream/transfer info, - * it must do so here. Example: no digital output for - * incompatible framerate, say 8KHz, on Onyx. - * If the selected stuff in the substream is NOT - * compatible, you have to reject this call! */ - int (*prepare)(struct codec_info_item *cii, - struct bus_info *bi, - struct snd_pcm_substream *substream); - - /* start() is called before data is pushed to the codec. - * Note that start() must be atomic! */ - int (*start)(struct codec_info_item *cii, - struct snd_pcm_substream *substream); - - /* stop() is called after data is no longer pushed to the codec. - * Note that stop() must be atomic! */ - int (*stop)(struct codec_info_item *cii, - struct snd_pcm_substream *substream); - - int (*suspend)(struct codec_info_item *cii, pm_message_t state); - int (*resume)(struct codec_info_item *cii); -}; - -/* information on a soundbus device */ -struct soundbus_dev { - /* the bus it belongs to */ - struct list_head onbuslist; - - /* the of device it represents */ - struct platform_device ofdev; - - /* what modules go by */ - char modalias[32]; - - /* These fields must be before attach_codec can be called. - * They should be set by the owner of the alsa card object - * that is needed, and whoever sets them must make sure - * that they are unique within that alsa card object. */ - char *pcmname; - int pcmid; - - /* this is assigned by the soundbus provider in attach_codec */ - struct snd_pcm *pcm; - - /* operations */ - /* attach a codec to this soundbus, give the alsa - * card object the PCMs for this soundbus should be in. - * The 'data' pointer must be unique, it is used as the - * key for detach_codec(). */ - int (*attach_codec)(struct soundbus_dev *dev, struct snd_card *card, - struct codec_info *ci, void *data); - void (*detach_codec)(struct soundbus_dev *dev, void *data); - /* TODO: suspend/resume */ - - /* private for the soundbus provider */ - struct list_head codec_list; - u32 have_out:1, have_in:1; -}; -#define to_soundbus_device(d) container_of(d, struct soundbus_dev, ofdev.dev) -#define of_to_soundbus_device(d) container_of(d, struct soundbus_dev, ofdev) - -extern int soundbus_add_one(struct soundbus_dev *dev); -extern void soundbus_remove_one(struct soundbus_dev *dev); - -extern struct soundbus_dev *soundbus_dev_get(struct soundbus_dev *dev); -extern void soundbus_dev_put(struct soundbus_dev *dev); - -struct soundbus_driver { - char *name; - struct module *owner; - - /* we don't implement any matching at all */ - - int (*probe)(struct soundbus_dev* dev); - int (*remove)(struct soundbus_dev* dev); - - int (*suspend)(struct soundbus_dev* dev, pm_message_t state); - int (*resume)(struct soundbus_dev* dev); - int (*shutdown)(struct soundbus_dev* dev); - - struct device_driver driver; -}; -#define to_soundbus_driver(drv) container_of(drv,struct soundbus_driver, driver) - -extern int soundbus_register_driver(struct soundbus_driver *drv); -extern void soundbus_unregister_driver(struct soundbus_driver *drv); - -extern struct device_attribute soundbus_dev_attrs[]; - -#endif /* __SOUNDBUS_H */ diff --git a/ANDROID_3.4.5/sound/aoa/soundbus/sysfs.c b/ANDROID_3.4.5/sound/aoa/soundbus/sysfs.c deleted file mode 100644 index e0980b5c..00000000 --- a/ANDROID_3.4.5/sound/aoa/soundbus/sysfs.c +++ /dev/null @@ -1,42 +0,0 @@ -#include <linux/kernel.h> -#include <linux/stat.h> -/* FIX UP */ -#include "soundbus.h" - -#define soundbus_config_of_attr(field, format_string) \ -static ssize_t \ -field##_show (struct device *dev, struct device_attribute *attr, \ - char *buf) \ -{ \ - struct soundbus_dev *mdev = to_soundbus_device (dev); \ - return sprintf (buf, format_string, mdev->ofdev.dev.of_node->field); \ -} - -static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct soundbus_dev *sdev = to_soundbus_device(dev); - struct platform_device *of = &sdev->ofdev; - int length; - - if (*sdev->modalias) { - strlcpy(buf, sdev->modalias, sizeof(sdev->modalias) + 1); - strcat(buf, "\n"); - length = strlen(buf); - } else { - length = sprintf(buf, "of:N%sT%s\n", - of->dev.of_node->name, of->dev.of_node->type); - } - - return length; -} - -soundbus_config_of_attr (name, "%s\n"); -soundbus_config_of_attr (type, "%s\n"); - -struct device_attribute soundbus_dev_attrs[] = { - __ATTR_RO(name), - __ATTR_RO(type), - __ATTR_RO(modalias), - __ATTR_NULL -}; |