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804 lines
19 KiB
804 lines
19 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* PS3 system bus driver. |
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* |
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* Copyright (C) 2006 Sony Computer Entertainment Inc. |
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* Copyright 2006 Sony Corp. |
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*/ |
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|
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/export.h> |
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#include <linux/dma-map-ops.h> |
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#include <linux/err.h> |
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#include <linux/slab.h> |
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#include <asm/udbg.h> |
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#include <asm/lv1call.h> |
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#include <asm/firmware.h> |
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#include <asm/cell-regs.h> |
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#include "platform.h" |
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static struct device ps3_system_bus = { |
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.init_name = "ps3_system", |
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}; |
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|
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/* FIXME: need device usage counters! */ |
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static struct { |
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struct mutex mutex; |
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int sb_11; /* usb 0 */ |
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int sb_12; /* usb 0 */ |
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int gpu; |
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} usage_hack; |
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static int ps3_is_device(struct ps3_system_bus_device *dev, u64 bus_id, |
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u64 dev_id) |
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{ |
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return dev->bus_id == bus_id && dev->dev_id == dev_id; |
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} |
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static int ps3_open_hv_device_sb(struct ps3_system_bus_device *dev) |
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{ |
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int result; |
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BUG_ON(!dev->bus_id); |
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mutex_lock(&usage_hack.mutex); |
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if (ps3_is_device(dev, 1, 1)) { |
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usage_hack.sb_11++; |
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if (usage_hack.sb_11 > 1) { |
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result = 0; |
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goto done; |
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} |
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} |
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if (ps3_is_device(dev, 1, 2)) { |
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usage_hack.sb_12++; |
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if (usage_hack.sb_12 > 1) { |
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result = 0; |
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goto done; |
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} |
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} |
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result = lv1_open_device(dev->bus_id, dev->dev_id, 0); |
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|
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if (result) { |
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pr_debug("%s:%d: lv1_open_device failed: %s\n", __func__, |
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__LINE__, ps3_result(result)); |
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result = -EPERM; |
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} |
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done: |
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mutex_unlock(&usage_hack.mutex); |
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return result; |
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} |
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static int ps3_close_hv_device_sb(struct ps3_system_bus_device *dev) |
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{ |
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int result; |
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BUG_ON(!dev->bus_id); |
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mutex_lock(&usage_hack.mutex); |
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if (ps3_is_device(dev, 1, 1)) { |
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usage_hack.sb_11--; |
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if (usage_hack.sb_11) { |
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result = 0; |
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goto done; |
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} |
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} |
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if (ps3_is_device(dev, 1, 2)) { |
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usage_hack.sb_12--; |
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if (usage_hack.sb_12) { |
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result = 0; |
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goto done; |
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} |
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} |
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result = lv1_close_device(dev->bus_id, dev->dev_id); |
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BUG_ON(result); |
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done: |
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mutex_unlock(&usage_hack.mutex); |
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return result; |
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} |
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static int ps3_open_hv_device_gpu(struct ps3_system_bus_device *dev) |
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{ |
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int result; |
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mutex_lock(&usage_hack.mutex); |
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usage_hack.gpu++; |
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if (usage_hack.gpu > 1) { |
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result = 0; |
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goto done; |
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} |
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result = lv1_gpu_open(0); |
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if (result) { |
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pr_debug("%s:%d: lv1_gpu_open failed: %s\n", __func__, |
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__LINE__, ps3_result(result)); |
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result = -EPERM; |
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} |
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done: |
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mutex_unlock(&usage_hack.mutex); |
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return result; |
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} |
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static int ps3_close_hv_device_gpu(struct ps3_system_bus_device *dev) |
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{ |
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int result; |
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mutex_lock(&usage_hack.mutex); |
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usage_hack.gpu--; |
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if (usage_hack.gpu) { |
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result = 0; |
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goto done; |
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} |
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result = lv1_gpu_close(); |
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BUG_ON(result); |
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done: |
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mutex_unlock(&usage_hack.mutex); |
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return result; |
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} |
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int ps3_open_hv_device(struct ps3_system_bus_device *dev) |
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{ |
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BUG_ON(!dev); |
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pr_debug("%s:%d: match_id: %u\n", __func__, __LINE__, dev->match_id); |
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switch (dev->match_id) { |
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case PS3_MATCH_ID_EHCI: |
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case PS3_MATCH_ID_OHCI: |
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case PS3_MATCH_ID_GELIC: |
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case PS3_MATCH_ID_STOR_DISK: |
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case PS3_MATCH_ID_STOR_ROM: |
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case PS3_MATCH_ID_STOR_FLASH: |
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return ps3_open_hv_device_sb(dev); |
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case PS3_MATCH_ID_SOUND: |
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case PS3_MATCH_ID_GPU: |
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return ps3_open_hv_device_gpu(dev); |
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case PS3_MATCH_ID_AV_SETTINGS: |
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case PS3_MATCH_ID_SYSTEM_MANAGER: |
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pr_debug("%s:%d: unsupported match_id: %u\n", __func__, |
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__LINE__, dev->match_id); |
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pr_debug("%s:%d: bus_id: %llu\n", __func__, __LINE__, |
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dev->bus_id); |
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BUG(); |
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return -EINVAL; |
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default: |
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break; |
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} |
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pr_debug("%s:%d: unknown match_id: %u\n", __func__, __LINE__, |
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dev->match_id); |
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BUG(); |
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return -ENODEV; |
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} |
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EXPORT_SYMBOL_GPL(ps3_open_hv_device); |
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int ps3_close_hv_device(struct ps3_system_bus_device *dev) |
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{ |
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BUG_ON(!dev); |
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pr_debug("%s:%d: match_id: %u\n", __func__, __LINE__, dev->match_id); |
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switch (dev->match_id) { |
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case PS3_MATCH_ID_EHCI: |
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case PS3_MATCH_ID_OHCI: |
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case PS3_MATCH_ID_GELIC: |
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case PS3_MATCH_ID_STOR_DISK: |
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case PS3_MATCH_ID_STOR_ROM: |
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case PS3_MATCH_ID_STOR_FLASH: |
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return ps3_close_hv_device_sb(dev); |
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case PS3_MATCH_ID_SOUND: |
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case PS3_MATCH_ID_GPU: |
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return ps3_close_hv_device_gpu(dev); |
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case PS3_MATCH_ID_AV_SETTINGS: |
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case PS3_MATCH_ID_SYSTEM_MANAGER: |
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pr_debug("%s:%d: unsupported match_id: %u\n", __func__, |
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__LINE__, dev->match_id); |
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pr_debug("%s:%d: bus_id: %llu\n", __func__, __LINE__, |
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dev->bus_id); |
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BUG(); |
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return -EINVAL; |
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default: |
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break; |
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} |
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pr_debug("%s:%d: unknown match_id: %u\n", __func__, __LINE__, |
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dev->match_id); |
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BUG(); |
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return -ENODEV; |
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} |
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EXPORT_SYMBOL_GPL(ps3_close_hv_device); |
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#define dump_mmio_region(_a) _dump_mmio_region(_a, __func__, __LINE__) |
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static void _dump_mmio_region(const struct ps3_mmio_region* r, |
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const char* func, int line) |
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{ |
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pr_debug("%s:%d: dev %llu:%llu\n", func, line, r->dev->bus_id, |
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r->dev->dev_id); |
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pr_debug("%s:%d: bus_addr %lxh\n", func, line, r->bus_addr); |
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pr_debug("%s:%d: len %lxh\n", func, line, r->len); |
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pr_debug("%s:%d: lpar_addr %lxh\n", func, line, r->lpar_addr); |
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} |
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static int ps3_sb_mmio_region_create(struct ps3_mmio_region *r) |
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{ |
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int result; |
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u64 lpar_addr; |
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result = lv1_map_device_mmio_region(r->dev->bus_id, r->dev->dev_id, |
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r->bus_addr, r->len, r->page_size, &lpar_addr); |
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r->lpar_addr = lpar_addr; |
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if (result) { |
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pr_debug("%s:%d: lv1_map_device_mmio_region failed: %s\n", |
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__func__, __LINE__, ps3_result(result)); |
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r->lpar_addr = 0; |
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} |
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dump_mmio_region(r); |
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return result; |
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} |
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static int ps3_ioc0_mmio_region_create(struct ps3_mmio_region *r) |
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{ |
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/* device specific; do nothing currently */ |
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return 0; |
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} |
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int ps3_mmio_region_create(struct ps3_mmio_region *r) |
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{ |
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return r->mmio_ops->create(r); |
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} |
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EXPORT_SYMBOL_GPL(ps3_mmio_region_create); |
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static int ps3_sb_free_mmio_region(struct ps3_mmio_region *r) |
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{ |
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int result; |
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dump_mmio_region(r); |
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result = lv1_unmap_device_mmio_region(r->dev->bus_id, r->dev->dev_id, |
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r->lpar_addr); |
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if (result) |
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pr_debug("%s:%d: lv1_unmap_device_mmio_region failed: %s\n", |
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__func__, __LINE__, ps3_result(result)); |
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r->lpar_addr = 0; |
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return result; |
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} |
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static int ps3_ioc0_free_mmio_region(struct ps3_mmio_region *r) |
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{ |
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/* device specific; do nothing currently */ |
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return 0; |
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} |
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int ps3_free_mmio_region(struct ps3_mmio_region *r) |
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{ |
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return r->mmio_ops->free(r); |
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} |
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EXPORT_SYMBOL_GPL(ps3_free_mmio_region); |
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static const struct ps3_mmio_region_ops ps3_mmio_sb_region_ops = { |
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.create = ps3_sb_mmio_region_create, |
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.free = ps3_sb_free_mmio_region |
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}; |
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static const struct ps3_mmio_region_ops ps3_mmio_ioc0_region_ops = { |
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.create = ps3_ioc0_mmio_region_create, |
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.free = ps3_ioc0_free_mmio_region |
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}; |
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int ps3_mmio_region_init(struct ps3_system_bus_device *dev, |
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struct ps3_mmio_region *r, unsigned long bus_addr, unsigned long len, |
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enum ps3_mmio_page_size page_size) |
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{ |
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r->dev = dev; |
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r->bus_addr = bus_addr; |
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r->len = len; |
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r->page_size = page_size; |
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switch (dev->dev_type) { |
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case PS3_DEVICE_TYPE_SB: |
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r->mmio_ops = &ps3_mmio_sb_region_ops; |
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break; |
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case PS3_DEVICE_TYPE_IOC0: |
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r->mmio_ops = &ps3_mmio_ioc0_region_ops; |
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break; |
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default: |
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BUG(); |
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return -EINVAL; |
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} |
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(ps3_mmio_region_init); |
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static int ps3_system_bus_match(struct device *_dev, |
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struct device_driver *_drv) |
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{ |
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int result; |
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struct ps3_system_bus_driver *drv = ps3_drv_to_system_bus_drv(_drv); |
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struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
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if (!dev->match_sub_id) |
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result = dev->match_id == drv->match_id; |
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else |
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result = dev->match_sub_id == drv->match_sub_id && |
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dev->match_id == drv->match_id; |
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if (result) |
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pr_info("%s:%d: dev=%u.%u(%s), drv=%u.%u(%s): match\n", |
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__func__, __LINE__, |
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dev->match_id, dev->match_sub_id, dev_name(&dev->core), |
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drv->match_id, drv->match_sub_id, drv->core.name); |
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else |
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pr_debug("%s:%d: dev=%u.%u(%s), drv=%u.%u(%s): miss\n", |
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__func__, __LINE__, |
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dev->match_id, dev->match_sub_id, dev_name(&dev->core), |
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drv->match_id, drv->match_sub_id, drv->core.name); |
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return result; |
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} |
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static int ps3_system_bus_probe(struct device *_dev) |
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{ |
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int result = 0; |
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struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
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struct ps3_system_bus_driver *drv; |
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BUG_ON(!dev); |
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dev_dbg(_dev, "%s:%d\n", __func__, __LINE__); |
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drv = ps3_system_bus_dev_to_system_bus_drv(dev); |
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BUG_ON(!drv); |
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if (drv->probe) |
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result = drv->probe(dev); |
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else |
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pr_debug("%s:%d: %s no probe method\n", __func__, __LINE__, |
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dev_name(&dev->core)); |
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pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev_name(&dev->core)); |
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return result; |
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} |
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static int ps3_system_bus_remove(struct device *_dev) |
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{ |
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int result = 0; |
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struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
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struct ps3_system_bus_driver *drv; |
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BUG_ON(!dev); |
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dev_dbg(_dev, "%s:%d\n", __func__, __LINE__); |
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drv = ps3_system_bus_dev_to_system_bus_drv(dev); |
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BUG_ON(!drv); |
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if (drv->remove) |
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result = drv->remove(dev); |
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else |
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dev_dbg(&dev->core, "%s:%d %s: no remove method\n", |
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__func__, __LINE__, drv->core.name); |
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pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev_name(&dev->core)); |
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return result; |
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} |
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static void ps3_system_bus_shutdown(struct device *_dev) |
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{ |
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struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
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struct ps3_system_bus_driver *drv; |
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BUG_ON(!dev); |
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dev_dbg(&dev->core, " -> %s:%d: match_id %d\n", __func__, __LINE__, |
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dev->match_id); |
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if (!dev->core.driver) { |
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dev_dbg(&dev->core, "%s:%d: no driver bound\n", __func__, |
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__LINE__); |
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return; |
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} |
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drv = ps3_system_bus_dev_to_system_bus_drv(dev); |
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BUG_ON(!drv); |
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dev_dbg(&dev->core, "%s:%d: %s -> %s\n", __func__, __LINE__, |
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dev_name(&dev->core), drv->core.name); |
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if (drv->shutdown) |
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drv->shutdown(dev); |
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else if (drv->remove) { |
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dev_dbg(&dev->core, "%s:%d %s: no shutdown, calling remove\n", |
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__func__, __LINE__, drv->core.name); |
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drv->remove(dev); |
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} else { |
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dev_dbg(&dev->core, "%s:%d %s: no shutdown method\n", |
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__func__, __LINE__, drv->core.name); |
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BUG(); |
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} |
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dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__); |
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} |
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static int ps3_system_bus_uevent(struct device *_dev, struct kobj_uevent_env *env) |
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{ |
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struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
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|
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if (add_uevent_var(env, "MODALIAS=ps3:%d:%d", dev->match_id, |
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dev->match_sub_id)) |
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return -ENOMEM; |
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return 0; |
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} |
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static ssize_t modalias_show(struct device *_dev, struct device_attribute *a, |
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char *buf) |
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{ |
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struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
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int len = snprintf(buf, PAGE_SIZE, "ps3:%d:%d\n", dev->match_id, |
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dev->match_sub_id); |
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|
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return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len; |
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} |
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static DEVICE_ATTR_RO(modalias); |
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|
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static struct attribute *ps3_system_bus_dev_attrs[] = { |
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&dev_attr_modalias.attr, |
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NULL, |
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}; |
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ATTRIBUTE_GROUPS(ps3_system_bus_dev); |
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struct bus_type ps3_system_bus_type = { |
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.name = "ps3_system_bus", |
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.match = ps3_system_bus_match, |
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.uevent = ps3_system_bus_uevent, |
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.probe = ps3_system_bus_probe, |
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.remove = ps3_system_bus_remove, |
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.shutdown = ps3_system_bus_shutdown, |
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.dev_groups = ps3_system_bus_dev_groups, |
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}; |
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|
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static int __init ps3_system_bus_init(void) |
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{ |
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int result; |
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|
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if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) |
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return -ENODEV; |
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pr_debug(" -> %s:%d\n", __func__, __LINE__); |
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mutex_init(&usage_hack.mutex); |
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result = device_register(&ps3_system_bus); |
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BUG_ON(result); |
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result = bus_register(&ps3_system_bus_type); |
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BUG_ON(result); |
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|
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pr_debug(" <- %s:%d\n", __func__, __LINE__); |
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return result; |
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} |
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core_initcall(ps3_system_bus_init); |
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|
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/* Allocates a contiguous real buffer and creates mappings over it. |
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* Returns the virtual address of the buffer and sets dma_handle |
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* to the dma address (mapping) of the first page. |
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*/ |
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static void * ps3_alloc_coherent(struct device *_dev, size_t size, |
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dma_addr_t *dma_handle, gfp_t flag, |
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unsigned long attrs) |
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{ |
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int result; |
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struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
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unsigned long virt_addr; |
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|
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flag &= ~(__GFP_DMA | __GFP_HIGHMEM); |
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flag |= __GFP_ZERO; |
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virt_addr = __get_free_pages(flag, get_order(size)); |
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|
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if (!virt_addr) { |
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pr_debug("%s:%d: get_free_pages failed\n", __func__, __LINE__); |
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goto clean_none; |
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} |
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result = ps3_dma_map(dev->d_region, virt_addr, size, dma_handle, |
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CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | |
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CBE_IOPTE_SO_RW | CBE_IOPTE_M); |
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|
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if (result) { |
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pr_debug("%s:%d: ps3_dma_map failed (%d)\n", |
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__func__, __LINE__, result); |
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BUG_ON("check region type"); |
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goto clean_alloc; |
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} |
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|
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return (void*)virt_addr; |
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|
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clean_alloc: |
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free_pages(virt_addr, get_order(size)); |
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clean_none: |
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dma_handle = NULL; |
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return NULL; |
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} |
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|
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static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr, |
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dma_addr_t dma_handle, unsigned long attrs) |
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{ |
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struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
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|
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ps3_dma_unmap(dev->d_region, dma_handle, size); |
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free_pages((unsigned long)vaddr, get_order(size)); |
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} |
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|
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/* Creates TCEs for a user provided buffer. The user buffer must be |
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* contiguous real kernel storage (not vmalloc). The address passed here |
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* comprises a page address and offset into that page. The dma_addr_t |
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* returned will point to the same byte within the page as was passed in. |
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*/ |
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|
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static dma_addr_t ps3_sb_map_page(struct device *_dev, struct page *page, |
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unsigned long offset, size_t size, enum dma_data_direction direction, |
|
unsigned long attrs) |
|
{ |
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
|
int result; |
|
dma_addr_t bus_addr; |
|
void *ptr = page_address(page) + offset; |
|
|
|
result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size, |
|
&bus_addr, |
|
CBE_IOPTE_PP_R | CBE_IOPTE_PP_W | |
|
CBE_IOPTE_SO_RW | CBE_IOPTE_M); |
|
|
|
if (result) { |
|
pr_debug("%s:%d: ps3_dma_map failed (%d)\n", |
|
__func__, __LINE__, result); |
|
} |
|
|
|
return bus_addr; |
|
} |
|
|
|
static dma_addr_t ps3_ioc0_map_page(struct device *_dev, struct page *page, |
|
unsigned long offset, size_t size, |
|
enum dma_data_direction direction, |
|
unsigned long attrs) |
|
{ |
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
|
int result; |
|
dma_addr_t bus_addr; |
|
u64 iopte_flag; |
|
void *ptr = page_address(page) + offset; |
|
|
|
iopte_flag = CBE_IOPTE_M; |
|
switch (direction) { |
|
case DMA_BIDIRECTIONAL: |
|
iopte_flag |= CBE_IOPTE_PP_R | CBE_IOPTE_PP_W | CBE_IOPTE_SO_RW; |
|
break; |
|
case DMA_TO_DEVICE: |
|
iopte_flag |= CBE_IOPTE_PP_R | CBE_IOPTE_SO_R; |
|
break; |
|
case DMA_FROM_DEVICE: |
|
iopte_flag |= CBE_IOPTE_PP_W | CBE_IOPTE_SO_RW; |
|
break; |
|
default: |
|
/* not happned */ |
|
BUG(); |
|
}; |
|
result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size, |
|
&bus_addr, iopte_flag); |
|
|
|
if (result) { |
|
pr_debug("%s:%d: ps3_dma_map failed (%d)\n", |
|
__func__, __LINE__, result); |
|
} |
|
return bus_addr; |
|
} |
|
|
|
static void ps3_unmap_page(struct device *_dev, dma_addr_t dma_addr, |
|
size_t size, enum dma_data_direction direction, unsigned long attrs) |
|
{ |
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
|
int result; |
|
|
|
result = ps3_dma_unmap(dev->d_region, dma_addr, size); |
|
|
|
if (result) { |
|
pr_debug("%s:%d: ps3_dma_unmap failed (%d)\n", |
|
__func__, __LINE__, result); |
|
} |
|
} |
|
|
|
static int ps3_sb_map_sg(struct device *_dev, struct scatterlist *sgl, |
|
int nents, enum dma_data_direction direction, unsigned long attrs) |
|
{ |
|
#if defined(CONFIG_PS3_DYNAMIC_DMA) |
|
BUG_ON("do"); |
|
return -EPERM; |
|
#else |
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
|
struct scatterlist *sg; |
|
int i; |
|
|
|
for_each_sg(sgl, sg, nents, i) { |
|
int result = ps3_dma_map(dev->d_region, sg_phys(sg), |
|
sg->length, &sg->dma_address, 0); |
|
|
|
if (result) { |
|
pr_debug("%s:%d: ps3_dma_map failed (%d)\n", |
|
__func__, __LINE__, result); |
|
return -EINVAL; |
|
} |
|
|
|
sg->dma_length = sg->length; |
|
} |
|
|
|
return nents; |
|
#endif |
|
} |
|
|
|
static int ps3_ioc0_map_sg(struct device *_dev, struct scatterlist *sg, |
|
int nents, |
|
enum dma_data_direction direction, |
|
unsigned long attrs) |
|
{ |
|
BUG(); |
|
return 0; |
|
} |
|
|
|
static void ps3_sb_unmap_sg(struct device *_dev, struct scatterlist *sg, |
|
int nents, enum dma_data_direction direction, unsigned long attrs) |
|
{ |
|
#if defined(CONFIG_PS3_DYNAMIC_DMA) |
|
BUG_ON("do"); |
|
#endif |
|
} |
|
|
|
static void ps3_ioc0_unmap_sg(struct device *_dev, struct scatterlist *sg, |
|
int nents, enum dma_data_direction direction, |
|
unsigned long attrs) |
|
{ |
|
BUG(); |
|
} |
|
|
|
static int ps3_dma_supported(struct device *_dev, u64 mask) |
|
{ |
|
return mask >= DMA_BIT_MASK(32); |
|
} |
|
|
|
static const struct dma_map_ops ps3_sb_dma_ops = { |
|
.alloc = ps3_alloc_coherent, |
|
.free = ps3_free_coherent, |
|
.map_sg = ps3_sb_map_sg, |
|
.unmap_sg = ps3_sb_unmap_sg, |
|
.dma_supported = ps3_dma_supported, |
|
.map_page = ps3_sb_map_page, |
|
.unmap_page = ps3_unmap_page, |
|
.mmap = dma_common_mmap, |
|
.get_sgtable = dma_common_get_sgtable, |
|
.alloc_pages = dma_common_alloc_pages, |
|
.free_pages = dma_common_free_pages, |
|
}; |
|
|
|
static const struct dma_map_ops ps3_ioc0_dma_ops = { |
|
.alloc = ps3_alloc_coherent, |
|
.free = ps3_free_coherent, |
|
.map_sg = ps3_ioc0_map_sg, |
|
.unmap_sg = ps3_ioc0_unmap_sg, |
|
.dma_supported = ps3_dma_supported, |
|
.map_page = ps3_ioc0_map_page, |
|
.unmap_page = ps3_unmap_page, |
|
.mmap = dma_common_mmap, |
|
.get_sgtable = dma_common_get_sgtable, |
|
.alloc_pages = dma_common_alloc_pages, |
|
.free_pages = dma_common_free_pages, |
|
}; |
|
|
|
/** |
|
* ps3_system_bus_release_device - remove a device from the system bus |
|
*/ |
|
|
|
static void ps3_system_bus_release_device(struct device *_dev) |
|
{ |
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
|
kfree(dev); |
|
} |
|
|
|
/** |
|
* ps3_system_bus_device_register - add a device to the system bus |
|
* |
|
* ps3_system_bus_device_register() expects the dev object to be allocated |
|
* dynamically by the caller. The system bus takes ownership of the dev |
|
* object and frees the object in ps3_system_bus_release_device(). |
|
*/ |
|
|
|
int ps3_system_bus_device_register(struct ps3_system_bus_device *dev) |
|
{ |
|
int result; |
|
static unsigned int dev_ioc0_count; |
|
static unsigned int dev_sb_count; |
|
static unsigned int dev_vuart_count; |
|
static unsigned int dev_lpm_count; |
|
|
|
if (!dev->core.parent) |
|
dev->core.parent = &ps3_system_bus; |
|
dev->core.bus = &ps3_system_bus_type; |
|
dev->core.release = ps3_system_bus_release_device; |
|
|
|
switch (dev->dev_type) { |
|
case PS3_DEVICE_TYPE_IOC0: |
|
dev->core.dma_ops = &ps3_ioc0_dma_ops; |
|
dev_set_name(&dev->core, "ioc0_%02x", ++dev_ioc0_count); |
|
break; |
|
case PS3_DEVICE_TYPE_SB: |
|
dev->core.dma_ops = &ps3_sb_dma_ops; |
|
dev_set_name(&dev->core, "sb_%02x", ++dev_sb_count); |
|
|
|
break; |
|
case PS3_DEVICE_TYPE_VUART: |
|
dev_set_name(&dev->core, "vuart_%02x", ++dev_vuart_count); |
|
break; |
|
case PS3_DEVICE_TYPE_LPM: |
|
dev_set_name(&dev->core, "lpm_%02x", ++dev_lpm_count); |
|
break; |
|
default: |
|
BUG(); |
|
}; |
|
|
|
dev->core.of_node = NULL; |
|
set_dev_node(&dev->core, 0); |
|
|
|
pr_debug("%s:%d add %s\n", __func__, __LINE__, dev_name(&dev->core)); |
|
|
|
result = device_register(&dev->core); |
|
return result; |
|
} |
|
|
|
EXPORT_SYMBOL_GPL(ps3_system_bus_device_register); |
|
|
|
int ps3_system_bus_driver_register(struct ps3_system_bus_driver *drv) |
|
{ |
|
int result; |
|
|
|
pr_debug(" -> %s:%d: %s\n", __func__, __LINE__, drv->core.name); |
|
|
|
if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) |
|
return -ENODEV; |
|
|
|
drv->core.bus = &ps3_system_bus_type; |
|
|
|
result = driver_register(&drv->core); |
|
pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, drv->core.name); |
|
return result; |
|
} |
|
|
|
EXPORT_SYMBOL_GPL(ps3_system_bus_driver_register); |
|
|
|
void ps3_system_bus_driver_unregister(struct ps3_system_bus_driver *drv) |
|
{ |
|
pr_debug(" -> %s:%d: %s\n", __func__, __LINE__, drv->core.name); |
|
driver_unregister(&drv->core); |
|
pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, drv->core.name); |
|
} |
|
|
|
EXPORT_SYMBOL_GPL(ps3_system_bus_driver_unregister);
|
|
|