/* Minimal IOSM CP VERSION which has valid CP_CAPABILITIES field */ #define IOSM_CP_VERSION 0x0100UL
/* DL dir Aggregation support mask */ #define DL_AGGR BIT(9)
/* UL dir Aggregation support mask */ #define UL_AGGR BIT(8)
/* UL flow credit support mask */ #define UL_FLOW_CREDIT BIT(21)
/* Possible states of the IPC finite state machine. */ enum ipc_mem_device_ipc_state {
IPC_MEM_DEVICE_IPC_UNINIT,
IPC_MEM_DEVICE_IPC_INIT,
IPC_MEM_DEVICE_IPC_RUNNING,
IPC_MEM_DEVICE_IPC_RECOVERY,
IPC_MEM_DEVICE_IPC_ERROR,
IPC_MEM_DEVICE_IPC_DONT_CARE,
IPC_MEM_DEVICE_IPC_INVALID = -1
};
/* mmio scratchpad info */ struct mmio_offset { int exec_stage; int chip_info; int rom_exit_code; int psi_address; int psi_size; int ipc_status; int context_info; int ap_win_base; int ap_win_end; int cp_version; int cp_capability;
};
/** * struct iosm_mmio - MMIO region mapped to the doorbell scratchpad. * @base: Base address of MMIO region * @dev: Pointer to device structure * @offset: Start offset * @context_info_addr: Physical base address of context info structure * @chip_info_version: Version of chip info structure * @chip_info_size: Size of chip info structure * @mux_protocol: mux protocol * @has_ul_flow_credit: Ul flow credit support * @has_slp_no_prot: Device sleep no protocol support * @has_mcr_support: Usage of mcr support
*/ struct iosm_mmio { unsignedchar __iomem *base; struct device *dev; struct mmio_offset offset;
phys_addr_t context_info_addr; unsignedint chip_info_version; unsignedint chip_info_size;
u32 mux_protocol;
u8 has_ul_flow_credit:1,
has_slp_no_prot:1,
has_mcr_support:1;
};
/** * ipc_mmio_init - Allocate mmio instance data * @mmio_addr: Mapped AP base address of the MMIO area. * @dev: Pointer to device structure * * Returns: address of mmio instance data or NULL if fails.
*/ struct iosm_mmio *ipc_mmio_init(void __iomem *mmio_addr, struct device *dev);
/** * ipc_mmio_set_psi_addr_and_size - Set start address and size of the * primary system image (PSI) for the * FW dowload. * @ipc_mmio: Pointer to mmio instance * @addr: PSI address * @size: PSI immage size
*/ void ipc_mmio_set_psi_addr_and_size(struct iosm_mmio *ipc_mmio, dma_addr_t addr,
u32 size);
/** * ipc_mmio_set_contex_info_addr - Stores the Context Info Address in * MMIO instance to share it with CP during * mmio_init. * @ipc_mmio: Pointer to mmio instance * @addr: 64-bit address of AP context information.
*/ void ipc_mmio_set_contex_info_addr(struct iosm_mmio *ipc_mmio,
phys_addr_t addr);
/** * ipc_mmio_get_cp_version - Get the CP IPC version * @ipc_mmio: Pointer to mmio instance * * Returns: version number on success and failure value on error.
*/ int ipc_mmio_get_cp_version(struct iosm_mmio *ipc_mmio);
/** * ipc_mmio_get_rom_exit_code - Get exit code from CP boot rom download app * @ipc_mmio: Pointer to mmio instance * * Returns: exit code from CP boot rom download APP
*/ enum rom_exit_code ipc_mmio_get_rom_exit_code(struct iosm_mmio *ipc_mmio);
/** * ipc_mmio_get_ipc_state - Query CP IPC state * @ipc_mmio: Pointer to mmio instance * * Returns: CP IPC state
*/ enum ipc_mem_device_ipc_state
ipc_mmio_get_ipc_state(struct iosm_mmio *ipc_mmio);
/** * ipc_mmio_copy_chip_info - Copy size bytes of CP chip info structure * into caller provided buffer * @ipc_mmio: Pointer to mmio instance * @dest: Pointer to caller provided buff * @size: Number of bytes to copy
*/ void ipc_mmio_copy_chip_info(struct iosm_mmio *ipc_mmio, void *dest,
size_t size);
/** * ipc_mmio_config - Write context info and AP memory range addresses. * This needs to be called when CP is in * IPC_MEM_DEVICE_IPC_INIT state * * @ipc_mmio: Pointer to mmio instance
*/ void ipc_mmio_config(struct iosm_mmio *ipc_mmio);
/** * ipc_mmio_update_cp_capability - Read and update modem capability, from mmio * capability offset * * @ipc_mmio: Pointer to mmio instance
*/ void ipc_mmio_update_cp_capability(struct iosm_mmio *ipc_mmio);
#endif
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