1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Greybus SVC code 4 * 5 * Copyright 2015 Google Inc. 6 * Copyright 2015 Linaro Ltd. 7 */ 8 9 #ifndef __SVC_H 10 #define __SVC_H 11 12 #include <linux/types.h> 13 #include <linux/device.h> 14 15 struct gb_svc_l2_timer_cfg; 16 17 #define GB_SVC_CPORT_FLAG_E2EFC BIT(0) 18 #define GB_SVC_CPORT_FLAG_CSD_N BIT(1) 19 #define GB_SVC_CPORT_FLAG_CSV_N BIT(2) 20 21 enum gb_svc_state { 22 GB_SVC_STATE_RESET, 23 GB_SVC_STATE_PROTOCOL_VERSION, 24 GB_SVC_STATE_SVC_HELLO, 25 }; 26 27 enum gb_svc_watchdog_bite { 28 GB_SVC_WATCHDOG_BITE_RESET_UNIPRO = 0, 29 GB_SVC_WATCHDOG_BITE_PANIC_KERNEL, 30 }; 31 32 struct gb_svc_watchdog; 33 34 struct svc_debugfs_pwrmon_rail { 35 u8 id; 36 struct gb_svc *svc; 37 }; 38 39 struct gb_svc { 40 struct device dev; 41 42 struct gb_host_device *hd; 43 struct gb_connection *connection; 44 enum gb_svc_state state; 45 struct ida device_id_map; 46 struct workqueue_struct *wq; 47 48 u16 endo_id; 49 u8 ap_intf_id; 50 51 u8 protocol_major; 52 u8 protocol_minor; 53 54 struct gb_svc_watchdog *watchdog; 55 enum gb_svc_watchdog_bite action; 56 57 struct dentry *debugfs_dentry; 58 struct svc_debugfs_pwrmon_rail *pwrmon_rails; 59 }; 60 #define to_gb_svc(d) container_of(d, struct gb_svc, dev) 61 62 struct gb_svc *gb_svc_create(struct gb_host_device *hd); 63 int gb_svc_add(struct gb_svc *svc); 64 void gb_svc_del(struct gb_svc *svc); 65 void gb_svc_put(struct gb_svc *svc); 66 67 int gb_svc_pwrmon_intf_sample_get(struct gb_svc *svc, u8 intf_id, 68 u8 measurement_type, u32 *value); 69 int gb_svc_intf_device_id(struct gb_svc *svc, u8 intf_id, u8 device_id); 70 int gb_svc_route_create(struct gb_svc *svc, u8 intf1_id, u8 dev1_id, 71 u8 intf2_id, u8 dev2_id); 72 void gb_svc_route_destroy(struct gb_svc *svc, u8 intf1_id, u8 intf2_id); 73 int gb_svc_connection_create(struct gb_svc *svc, u8 intf1_id, u16 cport1_id, 74 u8 intf2_id, u16 cport2_id, u8 cport_flags); 75 void gb_svc_connection_destroy(struct gb_svc *svc, u8 intf1_id, u16 cport1_id, 76 u8 intf2_id, u16 cport2_id); 77 int gb_svc_intf_eject(struct gb_svc *svc, u8 intf_id); 78 int gb_svc_intf_vsys_set(struct gb_svc *svc, u8 intf_id, bool enable); 79 int gb_svc_intf_refclk_set(struct gb_svc *svc, u8 intf_id, bool enable); 80 int gb_svc_intf_unipro_set(struct gb_svc *svc, u8 intf_id, bool enable); 81 int gb_svc_intf_activate(struct gb_svc *svc, u8 intf_id, u8 *intf_type); 82 int gb_svc_intf_resume(struct gb_svc *svc, u8 intf_id); 83 84 int gb_svc_dme_peer_get(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector, 85 u32 *value); 86 int gb_svc_dme_peer_set(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector, 87 u32 value); 88 int gb_svc_intf_set_power_mode(struct gb_svc *svc, u8 intf_id, u8 hs_series, 89 u8 tx_mode, u8 tx_gear, u8 tx_nlanes, 90 u8 tx_amplitude, u8 tx_hs_equalizer, 91 u8 rx_mode, u8 rx_gear, u8 rx_nlanes, 92 u8 flags, u32 quirks, 93 struct gb_svc_l2_timer_cfg *local, 94 struct gb_svc_l2_timer_cfg *remote); 95 int gb_svc_intf_set_power_mode_hibernate(struct gb_svc *svc, u8 intf_id); 96 int gb_svc_ping(struct gb_svc *svc); 97 int gb_svc_watchdog_create(struct gb_svc *svc); 98 void gb_svc_watchdog_destroy(struct gb_svc *svc); 99 bool gb_svc_watchdog_enabled(struct gb_svc *svc); 100 int gb_svc_watchdog_enable(struct gb_svc *svc); 101 int gb_svc_watchdog_disable(struct gb_svc *svc); 102 103 int gb_svc_protocol_init(void); 104 void gb_svc_protocol_exit(void); 105 106 #endif /* __SVC_H */ 107