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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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1795cf48b3
This patch cleans up the handling of the maple bus queue to remove the risk of races when adding packets. It also removes references to the redundant connect and disconnect functions. Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
#ifndef __LINUX_MAPLE_H
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#define __LINUX_MAPLE_H
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#include <linux/device.h>
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#include <mach/maple.h>
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extern struct bus_type maple_bus_type;
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/* Maple Bus command and response codes */
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enum maple_code {
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MAPLE_RESPONSE_FILEERR = -5,
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MAPLE_RESPONSE_AGAIN = -4, /* request should be retransmitted */
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MAPLE_RESPONSE_BADCMD = -3,
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MAPLE_RESPONSE_BADFUNC = -2,
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MAPLE_RESPONSE_NONE = -1, /* unit didn't respond at all */
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MAPLE_COMMAND_DEVINFO = 1,
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MAPLE_COMMAND_ALLINFO = 2,
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MAPLE_COMMAND_RESET = 3,
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MAPLE_COMMAND_KILL = 4,
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MAPLE_RESPONSE_DEVINFO = 5,
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MAPLE_RESPONSE_ALLINFO = 6,
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MAPLE_RESPONSE_OK = 7,
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MAPLE_RESPONSE_DATATRF = 8,
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MAPLE_COMMAND_GETCOND = 9,
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MAPLE_COMMAND_GETMINFO = 10,
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MAPLE_COMMAND_BREAD = 11,
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MAPLE_COMMAND_BWRITE = 12,
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MAPLE_COMMAND_SETCOND = 14
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};
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struct mapleq {
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struct list_head list;
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struct maple_device *dev;
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void *sendbuf, *recvbuf, *recvbufdcsp;
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unsigned char length;
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enum maple_code command;
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struct mutex mutex;
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};
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struct maple_devinfo {
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unsigned long function;
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unsigned long function_data[3];
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unsigned char area_code;
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unsigned char connector_direction;
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char product_name[31];
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char product_licence[61];
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unsigned short standby_power;
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unsigned short max_power;
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};
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struct maple_device {
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struct maple_driver *driver;
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struct mapleq *mq;
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void *private_data;
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void (*callback) (struct mapleq * mq);
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unsigned long when, interval, function;
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struct maple_devinfo devinfo;
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unsigned char port, unit;
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char product_name[32];
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char product_licence[64];
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struct device dev;
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};
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struct maple_driver {
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unsigned long function;
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struct device_driver drv;
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};
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void maple_getcond_callback(struct maple_device *dev,
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void (*callback) (struct mapleq * mq),
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unsigned long interval,
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unsigned long function);
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int maple_driver_register(struct device_driver *drv);
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int maple_add_packet_sleeps(struct maple_device *mdev, u32 function,
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u32 command, u32 length, void *data);
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void maple_clear_dev(struct maple_device *mdev);
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#define to_maple_dev(n) container_of(n, struct maple_device, dev)
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#define to_maple_driver(n) container_of(n, struct maple_driver, drv)
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#endif /* __LINUX_MAPLE_H */
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