Loading drivers/platform/msm/usb_bam.c +115 −0 Original line number Diff line number Diff line Loading @@ -59,11 +59,126 @@ do { \ #define log_event_dbg(x, ...) log_event(LOGLEVEL_DEBUG, x, ##__VA_ARGS__) #define log_event_err(x, ...) log_event(LOGLEVEL_ERR, x, ##__VA_ARGS__) enum usb_bam_event_type { USB_BAM_EVENT_WAKEUP_PIPE = 0, /* Wake a pipe */ USB_BAM_EVENT_WAKEUP, /* Wake a bam (first pipe waked) */ USB_BAM_EVENT_INACTIVITY, /* Inactivity on all pipes */ }; struct usb_bam_sps_type { struct sps_pipe **sps_pipes; struct sps_connect *sps_connections; }; /* * struct usb_bam_event_info: suspend/resume event information. * @type: usb bam event type. * @event: holds event data. * @callback: suspend/resume callback. * @param: port num (for suspend) or NULL (for resume). * @event_w: holds work queue parameters. */ struct usb_bam_event_info { enum usb_bam_event_type type; struct sps_register_event event; int (*callback)(void *); void *param; struct work_struct event_w; }; /* * struct usb_bam_pipe_connect: pipe connection information * between USB/HSIC BAM and another BAM. USB/HSIC BAM can be * either src BAM or dst BAM * @name: pipe description. * @mem_type: type of memory used for BAM FIFOs * @src_phy_addr: src bam physical address. * @src_pipe_index: src bam pipe index. * @dst_phy_addr: dst bam physical address. * @dst_pipe_index: dst bam pipe index. * @data_fifo_base_offset: data fifo offset. * @data_fifo_size: data fifo size. * @desc_fifo_base_offset: descriptor fifo offset. * @desc_fifo_size: descriptor fifo size. * @data_mem_buf: data fifo buffer. * @desc_mem_buf: descriptor fifo buffer. * @event: event for wakeup. * @enabled: true if pipe is enabled. * @suspended: true if pipe is suspended. * @cons_stopped: true is pipe has consumer requests stopped. * @prod_stopped: true if pipe has producer requests stopped. * @priv: private data to return upon activity_notify * or inactivity_notify callbacks. * @activity_notify: callback to invoke on activity on one of the in pipes. * @inactivity_notify: callback to invoke on inactivity on all pipes. * @start: callback to invoke to enqueue transfers on a pipe. * @stop: callback to invoke on dequeue transfers on a pipe. * @start_stop_param: param for the start/stop callbacks. */ struct usb_bam_pipe_connect { const char *name; u32 pipe_num; enum usb_pipe_mem_type mem_type; enum usb_bam_pipe_dir dir; enum usb_ctrl bam_type; enum peer_bam peer_bam; enum usb_bam_pipe_type pipe_type; u32 src_phy_addr; u32 src_pipe_index; u32 dst_phy_addr; u32 dst_pipe_index; u32 data_fifo_base_offset; u32 data_fifo_size; u32 desc_fifo_base_offset; u32 desc_fifo_size; struct sps_mem_buffer data_mem_buf; struct sps_mem_buffer desc_mem_buf; struct usb_bam_event_info event; bool enabled; bool suspended; bool cons_stopped; bool prod_stopped; void *priv; int (*activity_notify)(void *priv); int (*inactivity_notify)(void *priv); void (*start)(void *, enum usb_bam_pipe_dir); void (*stop)(void *, enum usb_bam_pipe_dir); void *start_stop_param; bool reset_pipe_after_lpm; }; /** * struct msm_usb_bam_data: pipe connection information * between USB/HSIC BAM and another BAM. USB/HSIC BAM can be * either src BAM or dst BAM * @usb_bam_num_pipes: max number of pipes to use. * @active_conn_num: number of active pipe connections. * @usb_bam_fifo_baseaddr: base address for bam pipe's data and descriptor * fifos. This can be on chip memory (ocimem) or usb * private memory. * @reset_on_connect: BAM must be reset before its first pipe connect * @reset_on_disconnect: BAM must be reset after its last pipe disconnect * @disable_clk_gating: Disable clock gating * @override_threshold: Override the default threshold value for Read/Write * event generation by the BAM towards another BAM. * @max_mbps_highspeed: Maximum Mbits per seconds that the USB core * can work at in bam2bam mode when connected to HS host. * @max_mbps_superspeed: Maximum Mbits per seconds that the USB core * can work at in bam2bam mode when connected to SS host. */ struct msm_usb_bam_data { u8 max_connections; int usb_bam_num_pipes; phys_addr_t usb_bam_fifo_baseaddr; bool reset_on_connect; bool reset_on_disconnect; bool disable_clk_gating; u32 override_threshold; u32 max_mbps_highspeed; u32 max_mbps_superspeed; enum usb_ctrl bam_type; }; /* * struct usb_bam_ctx_type - represents the usb bam driver entity * @usb_bam_sps: holds the sps pipes the usb bam driver holds Loading include/linux/usb_bam.h +3 −116 Original line number Diff line number Diff line Loading @@ -14,7 +14,9 @@ #define _USB_BAM_H_ #include <linux/msm-sps.h> #include <linux/usb/ch9.h> #include <linux/device.h> #include <linux/errno.h> #include <linux/types.h> #define MAX_BAMS NUM_CTRL /* Bam per USB controllers */ Loading @@ -40,12 +42,6 @@ enum usb_pipe_mem_type { OCI_MEM, /* Shared memory among peripherals */ }; enum usb_bam_event_type { USB_BAM_EVENT_WAKEUP_PIPE = 0, /* Wake a pipe */ USB_BAM_EVENT_WAKEUP, /* Wake a bam (first pipe waked) */ USB_BAM_EVENT_INACTIVITY, /* Inactivity on all pipes */ }; enum usb_bam_pipe_type { USB_BAM_PIPE_BAM2BAM = 0, /* Connection is BAM2BAM (default) */ USB_BAM_PIPE_SYS2BAM, /* Connection is SYS2BAM or BAM2SYS Loading @@ -54,115 +50,6 @@ enum usb_bam_pipe_type { USB_BAM_MAX_PIPE_TYPES, }; /* * struct usb_bam_event_info: suspend/resume event information. * @type: usb bam event type. * @event: holds event data. * @callback: suspend/resume callback. * @param: port num (for suspend) or NULL (for resume). * @event_w: holds work queue parameters. */ struct usb_bam_event_info { enum usb_bam_event_type type; struct sps_register_event event; int (*callback)(void *); void *param; struct work_struct event_w; }; /* * struct usb_bam_pipe_connect: pipe connection information * between USB/HSIC BAM and another BAM. USB/HSIC BAM can be * either src BAM or dst BAM * @name: pipe description. * @mem_type: type of memory used for BAM FIFOs * @src_phy_addr: src bam physical address. * @src_pipe_index: src bam pipe index. * @dst_phy_addr: dst bam physical address. * @dst_pipe_index: dst bam pipe index. * @data_fifo_base_offset: data fifo offset. * @data_fifo_size: data fifo size. * @desc_fifo_base_offset: descriptor fifo offset. * @desc_fifo_size: descriptor fifo size. * @data_mem_buf: data fifo buffer. * @desc_mem_buf: descriptor fifo buffer. * @event: event for wakeup. * @enabled: true if pipe is enabled. * @suspended: true if pipe is suspended. * @cons_stopped: true is pipe has consumer requests stopped. * @prod_stopped: true if pipe has producer requests stopped. * @priv: private data to return upon activity_notify * or inactivity_notify callbacks. * @activity_notify: callback to invoke on activity on one of the in pipes. * @inactivity_notify: callback to invoke on inactivity on all pipes. * @start: callback to invoke to enqueue transfers on a pipe. * @stop: callback to invoke on dequeue transfers on a pipe. * @start_stop_param: param for the start/stop callbacks. */ struct usb_bam_pipe_connect { const char *name; u32 pipe_num; enum usb_pipe_mem_type mem_type; enum usb_bam_pipe_dir dir; enum usb_ctrl bam_type; enum peer_bam peer_bam; enum usb_bam_pipe_type pipe_type; u32 src_phy_addr; u32 src_pipe_index; u32 dst_phy_addr; u32 dst_pipe_index; u32 data_fifo_base_offset; u32 data_fifo_size; u32 desc_fifo_base_offset; u32 desc_fifo_size; struct sps_mem_buffer data_mem_buf; struct sps_mem_buffer desc_mem_buf; struct usb_bam_event_info event; bool enabled; bool suspended; bool cons_stopped; bool prod_stopped; void *priv; int (*activity_notify)(void *priv); int (*inactivity_notify)(void *priv); void (*start)(void *, enum usb_bam_pipe_dir); void (*stop)(void *, enum usb_bam_pipe_dir); void *start_stop_param; bool reset_pipe_after_lpm; }; /** * struct msm_usb_bam_data: pipe connection information * between USB/HSIC BAM and another BAM. USB/HSIC BAM can be * either src BAM or dst BAM * @usb_bam_num_pipes: max number of pipes to use. * @active_conn_num: number of active pipe connections. * @usb_bam_fifo_baseaddr: base address for bam pipe's data and descriptor * fifos. This can be on chip memory (ocimem) or usb * private memory. * @reset_on_connect: BAM must be reset before its first pipe connect * @reset_on_disconnect: BAM must be reset after its last pipe disconnect * @disable_clk_gating: Disable clock gating * @override_threshold: Override the default threshold value for Read/Write * event generation by the BAM towards another BAM. * @max_mbps_highspeed: Maximum Mbits per seconds that the USB core * can work at in bam2bam mode when connected to HS host. * @max_mbps_superspeed: Maximum Mbits per seconds that the USB core * can work at in bam2bam mode when connected to SS host. */ struct msm_usb_bam_data { u8 max_connections; int usb_bam_num_pipes; phys_addr_t usb_bam_fifo_baseaddr; bool reset_on_connect; bool reset_on_disconnect; bool disable_clk_gating; u32 override_threshold; u32 max_mbps_highspeed; u32 max_mbps_superspeed; enum usb_ctrl bam_type; }; #if IS_ENABLED(CONFIG_USB_BAM) /** * Connect USB-to-Peripheral SPS connection. Loading Loading
drivers/platform/msm/usb_bam.c +115 −0 Original line number Diff line number Diff line Loading @@ -59,11 +59,126 @@ do { \ #define log_event_dbg(x, ...) log_event(LOGLEVEL_DEBUG, x, ##__VA_ARGS__) #define log_event_err(x, ...) log_event(LOGLEVEL_ERR, x, ##__VA_ARGS__) enum usb_bam_event_type { USB_BAM_EVENT_WAKEUP_PIPE = 0, /* Wake a pipe */ USB_BAM_EVENT_WAKEUP, /* Wake a bam (first pipe waked) */ USB_BAM_EVENT_INACTIVITY, /* Inactivity on all pipes */ }; struct usb_bam_sps_type { struct sps_pipe **sps_pipes; struct sps_connect *sps_connections; }; /* * struct usb_bam_event_info: suspend/resume event information. * @type: usb bam event type. * @event: holds event data. * @callback: suspend/resume callback. * @param: port num (for suspend) or NULL (for resume). * @event_w: holds work queue parameters. */ struct usb_bam_event_info { enum usb_bam_event_type type; struct sps_register_event event; int (*callback)(void *); void *param; struct work_struct event_w; }; /* * struct usb_bam_pipe_connect: pipe connection information * between USB/HSIC BAM and another BAM. USB/HSIC BAM can be * either src BAM or dst BAM * @name: pipe description. * @mem_type: type of memory used for BAM FIFOs * @src_phy_addr: src bam physical address. * @src_pipe_index: src bam pipe index. * @dst_phy_addr: dst bam physical address. * @dst_pipe_index: dst bam pipe index. * @data_fifo_base_offset: data fifo offset. * @data_fifo_size: data fifo size. * @desc_fifo_base_offset: descriptor fifo offset. * @desc_fifo_size: descriptor fifo size. * @data_mem_buf: data fifo buffer. * @desc_mem_buf: descriptor fifo buffer. * @event: event for wakeup. * @enabled: true if pipe is enabled. * @suspended: true if pipe is suspended. * @cons_stopped: true is pipe has consumer requests stopped. * @prod_stopped: true if pipe has producer requests stopped. * @priv: private data to return upon activity_notify * or inactivity_notify callbacks. * @activity_notify: callback to invoke on activity on one of the in pipes. * @inactivity_notify: callback to invoke on inactivity on all pipes. * @start: callback to invoke to enqueue transfers on a pipe. * @stop: callback to invoke on dequeue transfers on a pipe. * @start_stop_param: param for the start/stop callbacks. */ struct usb_bam_pipe_connect { const char *name; u32 pipe_num; enum usb_pipe_mem_type mem_type; enum usb_bam_pipe_dir dir; enum usb_ctrl bam_type; enum peer_bam peer_bam; enum usb_bam_pipe_type pipe_type; u32 src_phy_addr; u32 src_pipe_index; u32 dst_phy_addr; u32 dst_pipe_index; u32 data_fifo_base_offset; u32 data_fifo_size; u32 desc_fifo_base_offset; u32 desc_fifo_size; struct sps_mem_buffer data_mem_buf; struct sps_mem_buffer desc_mem_buf; struct usb_bam_event_info event; bool enabled; bool suspended; bool cons_stopped; bool prod_stopped; void *priv; int (*activity_notify)(void *priv); int (*inactivity_notify)(void *priv); void (*start)(void *, enum usb_bam_pipe_dir); void (*stop)(void *, enum usb_bam_pipe_dir); void *start_stop_param; bool reset_pipe_after_lpm; }; /** * struct msm_usb_bam_data: pipe connection information * between USB/HSIC BAM and another BAM. USB/HSIC BAM can be * either src BAM or dst BAM * @usb_bam_num_pipes: max number of pipes to use. * @active_conn_num: number of active pipe connections. * @usb_bam_fifo_baseaddr: base address for bam pipe's data and descriptor * fifos. This can be on chip memory (ocimem) or usb * private memory. * @reset_on_connect: BAM must be reset before its first pipe connect * @reset_on_disconnect: BAM must be reset after its last pipe disconnect * @disable_clk_gating: Disable clock gating * @override_threshold: Override the default threshold value for Read/Write * event generation by the BAM towards another BAM. * @max_mbps_highspeed: Maximum Mbits per seconds that the USB core * can work at in bam2bam mode when connected to HS host. * @max_mbps_superspeed: Maximum Mbits per seconds that the USB core * can work at in bam2bam mode when connected to SS host. */ struct msm_usb_bam_data { u8 max_connections; int usb_bam_num_pipes; phys_addr_t usb_bam_fifo_baseaddr; bool reset_on_connect; bool reset_on_disconnect; bool disable_clk_gating; u32 override_threshold; u32 max_mbps_highspeed; u32 max_mbps_superspeed; enum usb_ctrl bam_type; }; /* * struct usb_bam_ctx_type - represents the usb bam driver entity * @usb_bam_sps: holds the sps pipes the usb bam driver holds Loading
include/linux/usb_bam.h +3 −116 Original line number Diff line number Diff line Loading @@ -14,7 +14,9 @@ #define _USB_BAM_H_ #include <linux/msm-sps.h> #include <linux/usb/ch9.h> #include <linux/device.h> #include <linux/errno.h> #include <linux/types.h> #define MAX_BAMS NUM_CTRL /* Bam per USB controllers */ Loading @@ -40,12 +42,6 @@ enum usb_pipe_mem_type { OCI_MEM, /* Shared memory among peripherals */ }; enum usb_bam_event_type { USB_BAM_EVENT_WAKEUP_PIPE = 0, /* Wake a pipe */ USB_BAM_EVENT_WAKEUP, /* Wake a bam (first pipe waked) */ USB_BAM_EVENT_INACTIVITY, /* Inactivity on all pipes */ }; enum usb_bam_pipe_type { USB_BAM_PIPE_BAM2BAM = 0, /* Connection is BAM2BAM (default) */ USB_BAM_PIPE_SYS2BAM, /* Connection is SYS2BAM or BAM2SYS Loading @@ -54,115 +50,6 @@ enum usb_bam_pipe_type { USB_BAM_MAX_PIPE_TYPES, }; /* * struct usb_bam_event_info: suspend/resume event information. * @type: usb bam event type. * @event: holds event data. * @callback: suspend/resume callback. * @param: port num (for suspend) or NULL (for resume). * @event_w: holds work queue parameters. */ struct usb_bam_event_info { enum usb_bam_event_type type; struct sps_register_event event; int (*callback)(void *); void *param; struct work_struct event_w; }; /* * struct usb_bam_pipe_connect: pipe connection information * between USB/HSIC BAM and another BAM. USB/HSIC BAM can be * either src BAM or dst BAM * @name: pipe description. * @mem_type: type of memory used for BAM FIFOs * @src_phy_addr: src bam physical address. * @src_pipe_index: src bam pipe index. * @dst_phy_addr: dst bam physical address. * @dst_pipe_index: dst bam pipe index. * @data_fifo_base_offset: data fifo offset. * @data_fifo_size: data fifo size. * @desc_fifo_base_offset: descriptor fifo offset. * @desc_fifo_size: descriptor fifo size. * @data_mem_buf: data fifo buffer. * @desc_mem_buf: descriptor fifo buffer. * @event: event for wakeup. * @enabled: true if pipe is enabled. * @suspended: true if pipe is suspended. * @cons_stopped: true is pipe has consumer requests stopped. * @prod_stopped: true if pipe has producer requests stopped. * @priv: private data to return upon activity_notify * or inactivity_notify callbacks. * @activity_notify: callback to invoke on activity on one of the in pipes. * @inactivity_notify: callback to invoke on inactivity on all pipes. * @start: callback to invoke to enqueue transfers on a pipe. * @stop: callback to invoke on dequeue transfers on a pipe. * @start_stop_param: param for the start/stop callbacks. */ struct usb_bam_pipe_connect { const char *name; u32 pipe_num; enum usb_pipe_mem_type mem_type; enum usb_bam_pipe_dir dir; enum usb_ctrl bam_type; enum peer_bam peer_bam; enum usb_bam_pipe_type pipe_type; u32 src_phy_addr; u32 src_pipe_index; u32 dst_phy_addr; u32 dst_pipe_index; u32 data_fifo_base_offset; u32 data_fifo_size; u32 desc_fifo_base_offset; u32 desc_fifo_size; struct sps_mem_buffer data_mem_buf; struct sps_mem_buffer desc_mem_buf; struct usb_bam_event_info event; bool enabled; bool suspended; bool cons_stopped; bool prod_stopped; void *priv; int (*activity_notify)(void *priv); int (*inactivity_notify)(void *priv); void (*start)(void *, enum usb_bam_pipe_dir); void (*stop)(void *, enum usb_bam_pipe_dir); void *start_stop_param; bool reset_pipe_after_lpm; }; /** * struct msm_usb_bam_data: pipe connection information * between USB/HSIC BAM and another BAM. USB/HSIC BAM can be * either src BAM or dst BAM * @usb_bam_num_pipes: max number of pipes to use. * @active_conn_num: number of active pipe connections. * @usb_bam_fifo_baseaddr: base address for bam pipe's data and descriptor * fifos. This can be on chip memory (ocimem) or usb * private memory. * @reset_on_connect: BAM must be reset before its first pipe connect * @reset_on_disconnect: BAM must be reset after its last pipe disconnect * @disable_clk_gating: Disable clock gating * @override_threshold: Override the default threshold value for Read/Write * event generation by the BAM towards another BAM. * @max_mbps_highspeed: Maximum Mbits per seconds that the USB core * can work at in bam2bam mode when connected to HS host. * @max_mbps_superspeed: Maximum Mbits per seconds that the USB core * can work at in bam2bam mode when connected to SS host. */ struct msm_usb_bam_data { u8 max_connections; int usb_bam_num_pipes; phys_addr_t usb_bam_fifo_baseaddr; bool reset_on_connect; bool reset_on_disconnect; bool disable_clk_gating; u32 override_threshold; u32 max_mbps_highspeed; u32 max_mbps_superspeed; enum usb_ctrl bam_type; }; #if IS_ENABLED(CONFIG_USB_BAM) /** * Connect USB-to-Peripheral SPS connection. Loading
