1 #ifndef _WCD_DSP_GLINK_H 2 #define _WCD_DSP_GLINK_H 3 4 #include <linux/types.h> 5 6 #define WDSP_CH_NAME_MAX_LEN 50 7 8 enum { 9 WDSP_REG_PKT = 1, 10 WDSP_CMD_PKT, 11 WDSP_READY_PKT, 12 }; 13 #define WDSP_READY_PKT WDSP_READY_PKT 14 15 /* 16 * struct wdsp_reg_pkt - Glink channel information structure format 17 * @no_of_channels: Number of glink channels to open 18 * @payload[0]: Dynamic array contains all the glink channels information 19 */ 20 struct wdsp_reg_pkt { 21 __u8 no_of_channels; 22 __u8 payload[0]; 23 }; 24 25 /* 26 * struct wdsp_cmd_pkt - WDSP command packet format 27 * @ch_name: Name of the glink channel 28 * @payload_size: Size of the payload 29 * @payload[0]: Actual data payload 30 */ 31 struct wdsp_cmd_pkt { 32 char ch_name[WDSP_CH_NAME_MAX_LEN]; 33 __u32 payload_size; 34 __u8 payload[0]; 35 }; 36 37 /* 38 * struct wdsp_write_pkt - Format that userspace send the data to driver. 39 * @pkt_type: Type of the packet(REG or CMD PKT) 40 * @payload[0]: Payload is either cmd or reg pkt structure based on pkt type 41 */ 42 struct wdsp_write_pkt { 43 __u8 pkt_type; 44 __u8 payload[0]; 45 }; 46 47 /* 48 * struct wdsp_glink_ch_cfg - Defines the glink channel configuration. 49 * @ch_name: Name of the glink channel 50 * @latency_in_us: Latency specified in micro seconds for QOS 51 * @no_of_intents: Number of intents prequeued 52 * @intents_size[0]: Dynamic array to specify size of each intent 53 */ 54 struct wdsp_glink_ch_cfg { 55 char name[WDSP_CH_NAME_MAX_LEN]; 56 __u32 latency_in_us; 57 __u32 no_of_intents; 58 __u32 intents_size[0]; 59 }; 60 #endif /* _WCD_DSP_GLINK_H */ 61
