forked from luck/tmp_suning_uos_patched
[POWERPC] PS3: Device registration routines.
Add routines to probe devices present on the system and to register those devices with the LDM. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Geoff Levand
Paul Mackerras
parent
9e6b99bd44
commit
ffbdd24647
@ -4,3 +4,4 @@ obj-y += system-bus.o
|
||||
|
||||
obj-$(CONFIG_SMP) += smp.o
|
||||
obj-$(CONFIG_SPU_BASE) += spu.o
|
||||
obj-y += device-init.o
|
||||
|
||||
499
arch/powerpc/platforms/ps3/device-init.c
Normal file
499
arch/powerpc/platforms/ps3/device-init.c
Normal file
@ -0,0 +1,499 @@
|
||||
/*
|
||||
* PS3 device registration routines.
|
||||
*
|
||||
* Copyright (C) 2007 Sony Computer Entertainment Inc.
|
||||
* Copyright 2007 Sony Corp.
|
||||
*
|
||||
* 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; version 2 of the License.
|
||||
*
|
||||
* 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 <linux/delay.h>
|
||||
#include <linux/freezer.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/kthread.h>
|
||||
#include <linux/init.h>
|
||||
|
||||
#include <asm/firmware.h>
|
||||
#include <asm/lv1call.h>
|
||||
|
||||
#include "platform.h"
|
||||
|
||||
/**
|
||||
* ps3_setup_gelic_device - Setup and register a gelic device instance.
|
||||
*
|
||||
* Allocates memory for a struct ps3_system_bus_device instance, initialises the
|
||||
* structure members, and registers the device instance with the system bus.
|
||||
*/
|
||||
|
||||
static int __init ps3_setup_gelic_device(
|
||||
const struct ps3_repository_device *repo)
|
||||
{
|
||||
int result;
|
||||
struct layout {
|
||||
struct ps3_system_bus_device dev;
|
||||
struct ps3_dma_region d_region;
|
||||
} *p;
|
||||
|
||||
pr_debug(" -> %s:%d\n", __func__, __LINE__);
|
||||
|
||||
BUG_ON(repo->bus_type != PS3_BUS_TYPE_SB);
|
||||
BUG_ON(repo->dev_type != PS3_DEV_TYPE_SB_GELIC);
|
||||
|
||||
p = kzalloc(sizeof(struct layout), GFP_KERNEL);
|
||||
|
||||
if (!p) {
|
||||
result = -ENOMEM;
|
||||
goto fail_malloc;
|
||||
}
|
||||
|
||||
p->dev.match_id = PS3_MATCH_ID_GELIC;
|
||||
p->dev.dev_type = PS3_DEVICE_TYPE_SB;
|
||||
p->dev.bus_id = repo->bus_id;
|
||||
p->dev.dev_id = repo->dev_id;
|
||||
p->dev.d_region = &p->d_region;
|
||||
|
||||
result = ps3_repository_find_interrupt(repo,
|
||||
PS3_INTERRUPT_TYPE_EVENT_PORT, &p->dev.interrupt_id);
|
||||
|
||||
if (result) {
|
||||
pr_debug("%s:%d ps3_repository_find_interrupt failed\n",
|
||||
__func__, __LINE__);
|
||||
goto fail_find_interrupt;
|
||||
}
|
||||
|
||||
BUG_ON(p->dev.interrupt_id != 0);
|
||||
|
||||
result = ps3_dma_region_init(&p->dev, p->dev.d_region, PS3_DMA_64K,
|
||||
PS3_DMA_OTHER, NULL, 0);
|
||||
|
||||
if (result) {
|
||||
pr_debug("%s:%d ps3_dma_region_init failed\n",
|
||||
__func__, __LINE__);
|
||||
goto fail_dma_init;
|
||||
}
|
||||
|
||||
result = ps3_system_bus_device_register(&p->dev);
|
||||
|
||||
if (result) {
|
||||
pr_debug("%s:%d ps3_system_bus_device_register failed\n",
|
||||
__func__, __LINE__);
|
||||
goto fail_device_register;
|
||||
}
|
||||
|
||||
pr_debug(" <- %s:%d\n", __func__, __LINE__);
|
||||
return result;
|
||||
|
||||
fail_device_register:
|
||||
fail_dma_init:
|
||||
fail_find_interrupt:
|
||||
kfree(p);
|
||||
fail_malloc:
|
||||
pr_debug(" <- %s:%d: fail.\n", __func__, __LINE__);
|
||||
return result;
|
||||
}
|
||||
|
||||
static int __init_refok ps3_setup_uhc_device(
|
||||
const struct ps3_repository_device *repo, enum ps3_match_id match_id,
|
||||
enum ps3_interrupt_type interrupt_type, enum ps3_reg_type reg_type)
|
||||
{
|
||||
int result;
|
||||
struct layout {
|
||||
struct ps3_system_bus_device dev;
|
||||
struct ps3_dma_region d_region;
|
||||
struct ps3_mmio_region m_region;
|
||||
} *p;
|
||||
u64 bus_addr;
|
||||
u64 len;
|
||||
|
||||
pr_debug(" -> %s:%d\n", __func__, __LINE__);
|
||||
|
||||
BUG_ON(repo->bus_type != PS3_BUS_TYPE_SB);
|
||||
BUG_ON(repo->dev_type != PS3_DEV_TYPE_SB_USB);
|
||||
|
||||
p = kzalloc(sizeof(struct layout), GFP_KERNEL);
|
||||
|
||||
if (!p) {
|
||||
result = -ENOMEM;
|
||||
goto fail_malloc;
|
||||
}
|
||||
|
||||
p->dev.match_id = match_id;
|
||||
p->dev.dev_type = PS3_DEVICE_TYPE_SB;
|
||||
p->dev.bus_id = repo->bus_id;
|
||||
p->dev.dev_id = repo->dev_id;
|
||||
p->dev.d_region = &p->d_region;
|
||||
p->dev.m_region = &p->m_region;
|
||||
|
||||
result = ps3_repository_find_interrupt(repo,
|
||||
interrupt_type, &p->dev.interrupt_id);
|
||||
|
||||
if (result) {
|
||||
pr_debug("%s:%d ps3_repository_find_interrupt failed\n",
|
||||
__func__, __LINE__);
|
||||
goto fail_find_interrupt;
|
||||
}
|
||||
|
||||
result = ps3_repository_find_reg(repo, reg_type,
|
||||
&bus_addr, &len);
|
||||
|
||||
if (result) {
|
||||
pr_debug("%s:%d ps3_repository_find_reg failed\n",
|
||||
__func__, __LINE__);
|
||||
goto fail_find_reg;
|
||||
}
|
||||
|
||||
result = ps3_dma_region_init(&p->dev, p->dev.d_region, PS3_DMA_64K,
|
||||
PS3_DMA_INTERNAL, NULL, 0);
|
||||
|
||||
if (result) {
|
||||
pr_debug("%s:%d ps3_dma_region_init failed\n",
|
||||
__func__, __LINE__);
|
||||
goto fail_dma_init;
|
||||
}
|
||||
|
||||
result = ps3_mmio_region_init(&p->dev, p->dev.m_region, bus_addr, len,
|
||||
PS3_MMIO_4K);
|
||||
|
||||
if (result) {
|
||||
pr_debug("%s:%d ps3_mmio_region_init failed\n",
|
||||
__func__, __LINE__);
|
||||
goto fail_mmio_init;
|
||||
}
|
||||
|
||||
result = ps3_system_bus_device_register(&p->dev);
|
||||
|
||||
if (result) {
|
||||
pr_debug("%s:%d ps3_system_bus_device_register failed\n",
|
||||
__func__, __LINE__);
|
||||
goto fail_device_register;
|
||||
}
|
||||
|
||||
pr_debug(" <- %s:%d\n", __func__, __LINE__);
|
||||
return result;
|
||||
|
||||
fail_device_register:
|
||||
fail_mmio_init:
|
||||
fail_dma_init:
|
||||
fail_find_reg:
|
||||
fail_find_interrupt:
|
||||
kfree(p);
|
||||
fail_malloc:
|
||||
pr_debug(" <- %s:%d: fail.\n", __func__, __LINE__);
|
||||
return result;
|
||||
}
|
||||
|
||||
static int __init ps3_setup_ehci_device(
|
||||
const struct ps3_repository_device *repo)
|
||||
{
|
||||
return ps3_setup_uhc_device(repo, PS3_MATCH_ID_EHCI,
|
||||
PS3_INTERRUPT_TYPE_SB_EHCI, PS3_REG_TYPE_SB_EHCI);
|
||||
}
|
||||
|
||||
static int __init ps3_setup_ohci_device(
|
||||
const struct ps3_repository_device *repo)
|
||||
{
|
||||
return ps3_setup_uhc_device(repo, PS3_MATCH_ID_OHCI,
|
||||
PS3_INTERRUPT_TYPE_SB_OHCI, PS3_REG_TYPE_SB_OHCI);
|
||||
}
|
||||
|
||||
static int __init ps3_setup_vuart_device(enum ps3_match_id match_id,
|
||||
unsigned int port_number)
|
||||
{
|
||||
int result;
|
||||
struct layout {
|
||||
struct ps3_system_bus_device dev;
|
||||
} *p;
|
||||
|
||||
pr_debug(" -> %s:%d: match_id %u, port %u\n", __func__, __LINE__,
|
||||
match_id, port_number);
|
||||
|
||||
p = kzalloc(sizeof(struct layout), GFP_KERNEL);
|
||||
|
||||
if (!p)
|
||||
return -ENOMEM;
|
||||
|
||||
p->dev.match_id = match_id;
|
||||
p->dev.dev_type = PS3_DEVICE_TYPE_VUART;
|
||||
p->dev.port_number = port_number;
|
||||
|
||||
result = ps3_system_bus_device_register(&p->dev);
|
||||
|
||||
if (result)
|
||||
pr_debug("%s:%d ps3_system_bus_device_register failed\n",
|
||||
__func__, __LINE__);
|
||||
|
||||
pr_debug(" <- %s:%d\n", __func__, __LINE__);
|
||||
return result;
|
||||
}
|
||||
|
||||
static int __init ps3_register_vuart_devices(void)
|
||||
{
|
||||
int result;
|
||||
unsigned int port_number;
|
||||
|
||||
pr_debug(" -> %s:%d\n", __func__, __LINE__);
|
||||
|
||||
result = ps3_repository_read_vuart_av_port(&port_number);
|
||||
if (result)
|
||||
port_number = 0; /* av default */
|
||||
|
||||
result = ps3_setup_vuart_device(PS3_MATCH_ID_AV_SETTINGS, port_number);
|
||||
WARN_ON(result);
|
||||
|
||||
result = ps3_repository_read_vuart_sysmgr_port(&port_number);
|
||||
if (result)
|
||||
port_number = 2; /* sysmgr default */
|
||||
|
||||
result = ps3_setup_vuart_device(PS3_MATCH_ID_SYSTEM_MANAGER,
|
||||
port_number);
|
||||
WARN_ON(result);
|
||||
|
||||
pr_debug(" <- %s:%d\n", __func__, __LINE__);
|
||||
return result;
|
||||
}
|
||||
|
||||
static int __init ps3_register_sound_devices(void)
|
||||
{
|
||||
int result;
|
||||
struct layout {
|
||||
struct ps3_system_bus_device dev;
|
||||
struct ps3_dma_region d_region;
|
||||
struct ps3_mmio_region m_region;
|
||||
} *p;
|
||||
|
||||
pr_debug(" -> %s:%d\n", __func__, __LINE__);
|
||||
|
||||
p = kzalloc(sizeof(*p), GFP_KERNEL);
|
||||
if (!p)
|
||||
return -ENOMEM;
|
||||
|
||||
p->dev.match_id = PS3_MATCH_ID_SOUND;
|
||||
p->dev.dev_type = PS3_DEVICE_TYPE_IOC0;
|
||||
p->dev.d_region = &p->d_region;
|
||||
p->dev.m_region = &p->m_region;
|
||||
|
||||
result = ps3_system_bus_device_register(&p->dev);
|
||||
|
||||
if (result)
|
||||
pr_debug("%s:%d ps3_system_bus_device_register failed\n",
|
||||
__func__, __LINE__);
|
||||
|
||||
pr_debug(" <- %s:%d\n", __func__, __LINE__);
|
||||
return result;
|
||||
}
|
||||
|
||||
static int __init ps3_register_graphics_devices(void)
|
||||
{
|
||||
int result;
|
||||
struct layout {
|
||||
struct ps3_system_bus_device dev;
|
||||
} *p;
|
||||
|
||||
pr_debug(" -> %s:%d\n", __func__, __LINE__);
|
||||
|
||||
p = kzalloc(sizeof(struct layout), GFP_KERNEL);
|
||||
|
||||
if (!p)
|
||||
return -ENOMEM;
|
||||
|
||||
p->dev.match_id = PS3_MATCH_ID_GRAPHICS;
|
||||
p->dev.dev_type = PS3_DEVICE_TYPE_IOC0;
|
||||
|
||||
result = ps3_system_bus_device_register(&p->dev);
|
||||
|
||||
if (result)
|
||||
pr_debug("%s:%d ps3_system_bus_device_register failed\n",
|
||||
__func__, __LINE__);
|
||||
|
||||
pr_debug(" <- %s:%d\n", __func__, __LINE__);
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* ps3_register_repository_device - Register a device from the repositiory info.
|
||||
*
|
||||
*/
|
||||
|
||||
static int ps3_register_repository_device(
|
||||
const struct ps3_repository_device *repo)
|
||||
{
|
||||
int result;
|
||||
|
||||
switch (repo->dev_type) {
|
||||
case PS3_DEV_TYPE_SB_GELIC:
|
||||
result = ps3_setup_gelic_device(repo);
|
||||
if (result) {
|
||||
pr_debug("%s:%d ps3_setup_gelic_device failed\n",
|
||||
__func__, __LINE__);
|
||||
}
|
||||
break;
|
||||
case PS3_DEV_TYPE_SB_USB:
|
||||
|
||||
/* Each USB device has both an EHCI and an OHCI HC */
|
||||
|
||||
result = ps3_setup_ehci_device(repo);
|
||||
|
||||
if (result) {
|
||||
pr_debug("%s:%d ps3_setup_ehci_device failed\n",
|
||||
__func__, __LINE__);
|
||||
}
|
||||
|
||||
result = ps3_setup_ohci_device(repo);
|
||||
|
||||
if (result) {
|
||||
pr_debug("%s:%d ps3_setup_ohci_device failed\n",
|
||||
__func__, __LINE__);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
result = 0;
|
||||
pr_debug("%s:%u: unsupported dev_type %u\n", __func__, __LINE__,
|
||||
repo->dev_type);
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* ps3_probe_thread - Background repository probing at system startup.
|
||||
*
|
||||
* This implementation only supports background probing on a single bus.
|
||||
*/
|
||||
|
||||
static int ps3_probe_thread(void *data)
|
||||
{
|
||||
struct ps3_repository_device *repo = data;
|
||||
int result;
|
||||
unsigned int ms = 250;
|
||||
|
||||
pr_debug(" -> %s:%u: kthread started\n", __func__, __LINE__);
|
||||
|
||||
do {
|
||||
try_to_freeze();
|
||||
|
||||
pr_debug("%s:%u: probing...\n", __func__, __LINE__);
|
||||
|
||||
do {
|
||||
result = ps3_repository_find_device(repo);
|
||||
|
||||
if (result == -ENODEV)
|
||||
pr_debug("%s:%u: nothing new\n", __func__,
|
||||
__LINE__);
|
||||
else if (result)
|
||||
pr_debug("%s:%u: find device error.\n",
|
||||
__func__, __LINE__);
|
||||
else {
|
||||
pr_debug("%s:%u: found device\n", __func__,
|
||||
__LINE__);
|
||||
ps3_register_repository_device(repo);
|
||||
ps3_repository_bump_device(repo);
|
||||
ms = 250;
|
||||
}
|
||||
} while (!result);
|
||||
|
||||
pr_debug("%s:%u: ms %u\n", __func__, __LINE__, ms);
|
||||
|
||||
if ( ms > 60000)
|
||||
break;
|
||||
|
||||
msleep_interruptible(ms);
|
||||
|
||||
/* An exponential backoff. */
|
||||
ms <<= 1;
|
||||
|
||||
} while (!kthread_should_stop());
|
||||
|
||||
pr_debug(" <- %s:%u: kthread finished\n", __func__, __LINE__);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* ps3_start_probe_thread - Starts the background probe thread.
|
||||
*
|
||||
*/
|
||||
|
||||
static int __init ps3_start_probe_thread(enum ps3_bus_type bus_type)
|
||||
{
|
||||
int result;
|
||||
struct task_struct *task;
|
||||
static struct ps3_repository_device repo; /* must be static */
|
||||
|
||||
pr_debug(" -> %s:%d\n", __func__, __LINE__);
|
||||
|
||||
memset(&repo, 0, sizeof(repo));
|
||||
|
||||
repo.bus_type = bus_type;
|
||||
|
||||
result = ps3_repository_find_bus(repo.bus_type, 0, &repo.bus_index);
|
||||
|
||||
if (result) {
|
||||
printk(KERN_ERR "%s: Cannot find bus (%d)\n", __func__, result);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
result = ps3_repository_read_bus_id(repo.bus_index, &repo.bus_id);
|
||||
|
||||
if (result) {
|
||||
printk(KERN_ERR "%s: read_bus_id failed %d\n", __func__,
|
||||
result);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
task = kthread_run(ps3_probe_thread, &repo, "ps3-probe-%u", bus_type);
|
||||
|
||||
if (IS_ERR(task)) {
|
||||
result = PTR_ERR(task);
|
||||
printk(KERN_ERR "%s: kthread_run failed %d\n", __func__,
|
||||
result);
|
||||
return result;
|
||||
}
|
||||
|
||||
pr_debug(" <- %s:%d\n", __func__, __LINE__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* ps3_register_devices - Probe the system and register devices found.
|
||||
*
|
||||
* A device_initcall() routine.
|
||||
*/
|
||||
|
||||
static int __init ps3_register_devices(void)
|
||||
{
|
||||
int result;
|
||||
|
||||
if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
|
||||
return -ENODEV;
|
||||
|
||||
pr_debug(" -> %s:%d\n", __func__, __LINE__);
|
||||
|
||||
/* ps3_repository_dump_bus_info(); */
|
||||
|
||||
result = ps3_start_probe_thread(PS3_BUS_TYPE_STORAGE);
|
||||
|
||||
ps3_register_vuart_devices();
|
||||
|
||||
ps3_register_graphics_devices();
|
||||
|
||||
ps3_repository_find_devices(PS3_BUS_TYPE_SB,
|
||||
ps3_register_repository_device);
|
||||
|
||||
ps3_register_sound_devices();
|
||||
|
||||
pr_debug(" <- %s:%d\n", __func__, __LINE__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
device_initcall(ps3_register_devices);
|
||||
Loading…
Reference in New Issue
Block a user