arch/powerpc/include/asm/ps3stor.h

   1 /*
   2  * PS3 Storage Devices
   3  *
   4  * Copyright (C) 2007 Sony Computer Entertainment Inc.
   5  * Copyright 2007 Sony Corp.
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published
   9  * by the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #ifndef _ASM_POWERPC_PS3STOR_H_
  22 #define _ASM_POWERPC_PS3STOR_H_
  23
  24 #include <linux/interrupt.h>
  25
  26 #include <asm/ps3.h>
  27
  28
  29 struct ps3_storage_region {
  30         unsigned int id;
  31         u64 start;
  32         u64 size;
  33 };
  34
  35 struct ps3_storage_device {
  36         struct ps3_system_bus_device sbd;
  37
  38         struct ps3_dma_region dma_region;
  39         unsigned int irq;
  40         u64 blk_size;
  41
  42         u64 tag;
  43         u64 lv1_status;
  44         struct completion done;
  45
  46         unsigned long bounce_size;
  47         void *bounce_buf;
  48         u64 bounce_lpar;
  49         dma_addr_t bounce_dma;
  50
  51         unsigned int num_regions;
  52         unsigned long accessible_regions;
  53         unsigned int region_idx;                /* first accessible region */
  54         struct ps3_storage_region regions[0];   /* Must be last */
  55 };
  56
  57 static inline struct ps3_storage_device *to_ps3_storage_device(struct device *dev)
  58 {
  59         return container_of(dev, struct ps3_storage_device, sbd.core);
  60 }
  61
  62 extern int ps3stor_setup(struct ps3_storage_device *dev,
  63                          irq_handler_t handler);
  64 extern void ps3stor_teardown(struct ps3_storage_device *dev);
  65 extern u64 ps3stor_read_write_sectors(struct ps3_storage_device *dev, u64 lpar,
  66                                       u64 start_sector, u64 sectors,
  67                                       int write);
  68 extern u64 ps3stor_send_command(struct ps3_storage_device *dev, u64 cmd,
  69                                 u64 arg1, u64 arg2, u64 arg3, u64 arg4);
  70
  71 #endif /* _ASM_POWERPC_PS3STOR_H_ */