include/linux/platform_data/x86/intel_scu_ipc.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __PLATFORM_X86_INTEL_SCU_IPC_H_
   3 #define __PLATFORM_X86_INTEL_SCU_IPC_H_
   4
   5 #include <linux/init.h>
   6 #include <linux/ioport.h>
   7 #include <linux/types.h>
   8
   9 struct device;
  10 struct module;
  11
  12 struct intel_scu_ipc_dev;
  13
  14 /**
  15  * struct intel_scu_ipc_data - Data used to configure SCU IPC
  16  * @mem: Base address of SCU IPC MMIO registers
  17  * @irq: The IRQ number used for SCU (optional)
  18  */
  19 struct intel_scu_ipc_data {
  20         struct resource mem;
  21         int irq;
  22 };
  23
  24 struct intel_scu_ipc_dev *
  25 __intel_scu_ipc_register(struct device *parent,
  26                          const struct intel_scu_ipc_data *scu_data,
  27                          struct module *owner);
  28
  29 #define intel_scu_ipc_register(parent, scu_data)  \
  30         __intel_scu_ipc_register(parent, scu_data, THIS_MODULE)
  31
  32 void intel_scu_ipc_unregister(struct intel_scu_ipc_dev *scu);
  33
  34 struct intel_scu_ipc_dev *
  35 __devm_intel_scu_ipc_register(struct device *parent,
  36                               const struct intel_scu_ipc_data *scu_data,
  37                               struct module *owner);
  38
  39 #define devm_intel_scu_ipc_register(parent, scu_data)  \
  40         __devm_intel_scu_ipc_register(parent, scu_data, THIS_MODULE)
  41
  42 struct intel_scu_ipc_dev *intel_scu_ipc_dev_get(void);
  43 void intel_scu_ipc_dev_put(struct intel_scu_ipc_dev *scu);
  44 struct intel_scu_ipc_dev *devm_intel_scu_ipc_dev_get(struct device *dev);
  45
  46 int intel_scu_ipc_dev_ioread8(struct intel_scu_ipc_dev *scu, u16 addr,
  47                               u8 *data);
  48 int intel_scu_ipc_dev_iowrite8(struct intel_scu_ipc_dev *scu, u16 addr,
  49                                u8 data);
  50 int intel_scu_ipc_dev_readv(struct intel_scu_ipc_dev *scu, u16 *addr,
  51                             u8 *data, size_t len);
  52 int intel_scu_ipc_dev_writev(struct intel_scu_ipc_dev *scu, u16 *addr,
  53                              u8 *data, size_t len);
  54
  55 int intel_scu_ipc_dev_update(struct intel_scu_ipc_dev *scu, u16 addr,
  56                              u8 data, u8 mask);
  57
  58 int intel_scu_ipc_dev_simple_command(struct intel_scu_ipc_dev *scu, int cmd,
  59                                      int sub);
  60 int intel_scu_ipc_dev_command_with_size(struct intel_scu_ipc_dev *scu, int cmd,
  61                                         int sub, const void *in, size_t inlen,
  62                                         size_t size, void *out, size_t outlen);
  63
  64 static inline int intel_scu_ipc_dev_command(struct intel_scu_ipc_dev *scu, int cmd,
  65                                             int sub, const void *in, size_t inlen,
  66                                             void *out, size_t outlen)
  67 {
  68         return intel_scu_ipc_dev_command_with_size(scu, cmd, sub, in, inlen,
  69                                                    inlen, out, outlen);
  70 }
  71
  72 #endif