include/asm/intel_scu_ipc.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef _ASM_X86_INTEL_SCU_IPC_H_
0003 #define  _ASM_X86_INTEL_SCU_IPC_H_
0004
0005 #include <linux/ioport.h>
0006
0007 struct device;
0008 struct intel_scu_ipc_dev;
0009
0010 /**
0011  * struct intel_scu_ipc_data - Data used to configure SCU IPC
0012  * @mem: Base address of SCU IPC MMIO registers
0013  * @irq: The IRQ number used for SCU (optional)
0014  */
0015 struct intel_scu_ipc_data {
0016     struct resource mem;
0017     int irq;
0018 };
0019
0020 struct intel_scu_ipc_dev *
0021 __intel_scu_ipc_register(struct device *parent,
0022              const struct intel_scu_ipc_data *scu_data,
0023              struct module *owner);
0024
0025 #define intel_scu_ipc_register(parent, scu_data)  \
0026     __intel_scu_ipc_register(parent, scu_data, THIS_MODULE)
0027
0028 void intel_scu_ipc_unregister(struct intel_scu_ipc_dev *scu);
0029
0030 struct intel_scu_ipc_dev *
0031 __devm_intel_scu_ipc_register(struct device *parent,
0032                   const struct intel_scu_ipc_data *scu_data,
0033                   struct module *owner);
0034
0035 #define devm_intel_scu_ipc_register(parent, scu_data)  \
0036     __devm_intel_scu_ipc_register(parent, scu_data, THIS_MODULE)
0037
0038 struct intel_scu_ipc_dev *intel_scu_ipc_dev_get(void);
0039 void intel_scu_ipc_dev_put(struct intel_scu_ipc_dev *scu);
0040 struct intel_scu_ipc_dev *devm_intel_scu_ipc_dev_get(struct device *dev);
0041
0042 int intel_scu_ipc_dev_ioread8(struct intel_scu_ipc_dev *scu, u16 addr,
0043                   u8 *data);
0044 int intel_scu_ipc_dev_iowrite8(struct intel_scu_ipc_dev *scu, u16 addr,
0045                    u8 data);
0046 int intel_scu_ipc_dev_readv(struct intel_scu_ipc_dev *scu, u16 *addr,
0047                 u8 *data, size_t len);
0048 int intel_scu_ipc_dev_writev(struct intel_scu_ipc_dev *scu, u16 *addr,
0049                  u8 *data, size_t len);
0050
0051 int intel_scu_ipc_dev_update(struct intel_scu_ipc_dev *scu, u16 addr,
0052                  u8 data, u8 mask);
0053
0054 int intel_scu_ipc_dev_simple_command(struct intel_scu_ipc_dev *scu, int cmd,
0055                      int sub);
0056 int intel_scu_ipc_dev_command_with_size(struct intel_scu_ipc_dev *scu, int cmd,
0057                     int sub, const void *in, size_t inlen,
0058                     size_t size, void *out, size_t outlen);
0059
0060 static inline int intel_scu_ipc_dev_command(struct intel_scu_ipc_dev *scu, int cmd,
0061                         int sub, const void *in, size_t inlen,
0062                         void *out, size_t outlen)
0063 {
0064     return intel_scu_ipc_dev_command_with_size(scu, cmd, sub, in, inlen,
0065                            inlen, out, outlen);
0066 }
0067
0068 #endif