package/lqtapi/src/mps/vmmc-module.h

   1 #ifndef __VMMC_MODULE_H__
   2 #define __VMMC_MODULE_H__
   3
   4 #include <linux/list.h>
   5 #include <linux/kernel.h>
   6 #include <linux/tapi/tapi.h>
   7
   8 struct vmmc_module;
   9
  10 struct vmmc_module_ops {
  11         int (*sync)(struct vmmc_module *);
  12         int (*enable)(struct vmmc_module *, bool enable);
  13 };
  14
  15 struct vmmc_module
  16 {
  17         unsigned int id;
  18
  19         size_t num_pins;
  20         unsigned int *pins;
  21
  22         const struct vmmc_module_ops *ops;
  23
  24         unsigned long flags;
  25 #define VMMC_MODULE_FLAG_PIN_USED(x) (x)
  26 #define VMMC_MODULE_FLAG_MODIFIED 31
  27         struct mutex lock;
  28         struct list_head head;
  29
  30         unsigned int refcount;
  31 };
  32
  33 int vmmc_module_init(struct vmmc_module *module, size_t num_pins,
  34         const struct vmmc_module_ops *ops);
  35 int vmmc_module_sync(struct vmmc_module *module);
  36
  37 struct vmmc_link {
  38         struct vmmc_module *modules[2];
  39         unsigned int pins[2];
  40 };
  41
  42 struct vmmc_endpoint {
  43         struct tapi_endpoint ep;
  44         struct vmmc_module *module;
  45 };
  46
  47 void vmmc_link_enable(struct vmmc_link *link);
  48 void vmmc_link_disable(struct vmmc_link *link);
  49 unsigned int vmmc_link_init(struct vmmc_link *link,
  50         struct vmmc_module *a, struct vmmc_module *b);
  51 void vmmc_link_put(struct vmmc_link *link);
  52
  53 int vmmc_module_get_pin(struct vmmc_module *module);
  54 void vmmc_module_put_pin(struct vmmc_module *module, unsigned int pin);
  55 void vmmc_module_set_pin_input(struct vmmc_module *module, unsigned int pin,
  56         struct vmmc_module *input);
  57
  58
  59 static inline struct vmmc_module *tapi_endpoint_to_vmmc_module(struct tapi_endpoint *ep)
  60 {
  61         return tapi_endpoint_get_data(ep);
  62 }
  63
  64 #endif