自学教程：C++ DEVICE_STATE_EVENT_NUMBER函数代码示例

static u32 vcd_init_in_null(struct vcd_drv_ctxt_type_t *p_drv_ctxt, struct vcd_init_config_type *p_config, s32 *p_driver_handle) {    u32 rc = VCD_S_SUCCESS;    struct vcd_dev_ctxt_type *p_dev_ctxt = &p_drv_ctxt->dev_ctxt;    u32 b_done_create_timer = FALSE;    VCD_MSG_LOW("vcd_init_in_dev_null:");    p_dev_ctxt->config = *p_config;    p_dev_ctxt->p_device_base_addr =        (u8 *)p_config->pf_map_dev_base_addr(            p_dev_ctxt->config.p_device_name);    if (!p_dev_ctxt->p_device_base_addr) {        VCD_MSG_ERROR("NULL Device_base_addr");        return VCD_ERR_FAIL;    }    if (p_config->pf_register_isr) {        p_config->pf_register_isr(p_dev_ctxt->config.                                  p_device_name);    }    if (p_config->pf_timer_create) {        if (p_config->pf_timer_create(vcd_hw_timeout_handler,                                      NULL, &p_dev_ctxt->p_hw_timer_handle))            b_done_create_timer = TRUE;        else {            VCD_MSG_ERROR("timercreate failed");            return VCD_ERR_FAIL;        }    }    rc = vcd_init_cmn(p_drv_ctxt, p_config, p_driver_handle);    if (!VCD_FAILED(rc)) {        vcd_do_device_state_transition(p_drv_ctxt,                                       VCD_DEVICE_STATE_NOT_INIT,                                       DEVICE_STATE_EVENT_NUMBER                                       (pf_init));    } else {        if (p_dev_ctxt->config.pf_un_map_dev_base_addr)            p_dev_ctxt->config.pf_un_map_dev_base_addr();        if (p_dev_ctxt->config.pf_deregister_isr)            p_dev_ctxt->config.pf_deregister_isr();        if (b_done_create_timer && p_dev_ctxt->config.pf_timer_release)            p_dev_ctxt->config.pf_timer_release(p_dev_ctxt->                                                p_hw_timer_handle);    }    return rc;}

void vcd_term_driver_context(struct vcd_drv_ctxt_type_t *p_drv_ctxt){    struct vcd_dev_ctxt_type *p_dev_ctxt = &p_drv_ctxt->dev_ctxt;    VCD_MSG_HIGH("All driver instances terminated");    if (p_dev_ctxt->config.pf_deregister_isr)        p_dev_ctxt->config.pf_deregister_isr();    if (p_dev_ctxt->config.pf_un_map_dev_base_addr)        p_dev_ctxt->config.pf_un_map_dev_base_addr();    if (p_dev_ctxt->config.pf_timer_release)        p_dev_ctxt->config.pf_timer_release(            p_dev_ctxt->p_hw_timer_handle);    vcd_free(p_dev_ctxt->a_trans_tbl);    memset(p_dev_ctxt, 0, sizeof(struct vcd_dev_ctxt_type));    vcd_do_device_state_transition(p_drv_ctxt,                                   VCD_DEVICE_STATE_NULL,                                   DEVICE_STATE_EVENT_NUMBER(pf_term));}

void vcd_handle_device_init_failed(struct vcd_drv_ctxt_type_t *p_drv_ctxt,                                   u32 status){    struct vcd_clnt_ctxt_type_t *p_client;    struct vcd_clnt_ctxt_type_t *p_tmp_client;    VCD_MSG_ERROR("Device init failed. status = %d", status);    p_client = p_drv_ctxt->dev_ctxt.p_cctxt_list_head;    while (p_client) {        p_client->callback(VCD_EVT_RESP_OPEN,                           status, NULL, 0, 0, p_client->p_client_data);        p_tmp_client = p_client;        p_client = p_client->p_next;        vcd_destroy_client_context(p_tmp_client);    }    if (ddl_device_release(NULL))        VCD_MSG_ERROR("Failed: ddl_device_release");    (void)sched_destroy(p_drv_ctxt->dev_ctxt.sched_hdl);    p_drv_ctxt->dev_ctxt.sched_hdl = NULL;    if (vcd_power_event(&p_drv_ctxt->dev_ctxt,                        NULL, VCD_EVT_PWR_DEV_INIT_FAIL))        VCD_MSG_ERROR("VCD_EVT_PWR_DEV_INIT_FAIL failed");    vcd_do_device_state_transition(p_drv_ctxt,                                   VCD_DEVICE_STATE_NOT_INIT,                                   DEVICE_STATE_EVENT_NUMBER(pf_dev_cb));}

void vcd_handle_device_err_fatal(struct vcd_dev_ctxt_type *p_dev_ctxt,                                 struct vcd_clnt_ctxt_type_t *p_trig_clnt){    struct vcd_clnt_ctxt_type_t *p_cctxt = p_dev_ctxt->p_cctxt_list_head;    struct vcd_clnt_ctxt_type_t *p_tmp_clnt = NULL;    VCD_MSG_LOW("vcd_handle_device_err_fatal:");    while (p_cctxt) {        p_tmp_clnt = p_cctxt;        p_cctxt = p_cctxt->p_next;        if (p_tmp_clnt != p_trig_clnt)            vcd_clnt_handle_device_err_fatal(p_tmp_clnt,                                             VCD_EVT_IND_HWERRFATAL);    }    p_dev_ctxt->e_pending_cmd = VCD_CMD_DEVICE_RESET;    if (!p_dev_ctxt->p_cctxt_list_head)        vcd_do_device_state_transition(vcd_get_drv_context(),                                       VCD_DEVICE_STATE_NOT_INIT,                                       DEVICE_STATE_EVENT_NUMBER(pf_timeout));    else        vcd_do_device_state_transition(vcd_get_drv_context(),                                       VCD_DEVICE_STATE_INVALID,                                       DEVICE_STATE_EVENT_NUMBER(pf_dev_cb));}

void vcd_continue(void){    struct vcd_drv_ctxt_type_t *p_drv_ctxt;    struct vcd_dev_ctxt_type *p_dev_ctxt;    u32 b_continue;    struct vcd_transc_type *p_transc;    u32 rc;    VCD_MSG_LOW("vcd_continue:");    p_drv_ctxt = vcd_get_drv_context();    p_dev_ctxt = &p_drv_ctxt->dev_ctxt;    p_dev_ctxt->b_continue = FALSE;    if (p_dev_ctxt->e_pending_cmd == VCD_CMD_DEVICE_INIT) {        VCD_MSG_HIGH("VCD_CMD_DEVICE_INIT is pending");        p_dev_ctxt->e_pending_cmd = VCD_CMD_NONE;        (void)vcd_init_device_context(p_drv_ctxt,                                      DEVICE_STATE_EVENT_NUMBER(pf_open));    } else if (p_dev_ctxt->e_pending_cmd == VCD_CMD_DEVICE_TERM) {        VCD_MSG_HIGH("VCD_CMD_DEVICE_TERM is pending");        p_dev_ctxt->e_pending_cmd = VCD_CMD_NONE;        (void)vcd_deinit_device_context(p_drv_ctxt,                                        DEVICE_STATE_EVENT_NUMBER(pf_close));    } else if (p_dev_ctxt->e_pending_cmd == VCD_CMD_DEVICE_RESET) {        VCD_MSG_HIGH("VCD_CMD_DEVICE_RESET is pending");        p_dev_ctxt->e_pending_cmd = VCD_CMD_NONE;        (void)vcd_reset_device_context(p_drv_ctxt,                                       DEVICE_STATE_EVENT_NUMBER(pf_dev_cb));    } else {        if (p_dev_ctxt->b_set_perf_lvl_pending) {            rc = vcd_power_event(p_dev_ctxt, NULL,                                 VCD_EVT_PWR_DEV_SET_PERFLVL);            if (VCD_FAILED(rc)) {                VCD_MSG_ERROR                ("VCD_EVT_PWR_CLNT_SET_PERFLVL failed");                VCD_MSG_HIGH                ("Not running at desired perf level."                 "curr=%d, reqd=%d",                 p_dev_ctxt->n_curr_perf_lvl,                 p_dev_ctxt->n_reqd_perf_lvl);            } else {                p_dev_ctxt->b_set_perf_lvl_pending = FALSE;            }        }        do {            b_continue = FALSE;            if (vcd_get_command_channel_in_loop                    (p_dev_ctxt, &p_transc)) {                if (vcd_submit_command_in_continue(p_dev_ctxt,                                                   p_transc))                    b_continue = TRUE;                else {                    VCD_MSG_MED                    ("No more commands to submit");                    vcd_release_command_channel(p_dev_ctxt,                                                p_transc);                    vcd_release_interim_command_channels                    (p_dev_ctxt);                }            }        } while (b_continue);        do {            b_continue = FALSE;            if (vcd_get_frame_channel_in_loop                    (p_dev_ctxt, &p_transc)) {                if (vcd_try_submit_frame_in_continue(p_dev_ctxt,                                                     p_transc)) {                    b_continue = TRUE;                } else {                    VCD_MSG_MED("No more frames to submit");                    vcd_release_frame_channel(p_dev_ctxt,                                              p_transc);                    vcd_release_interim_frame_channels                    (p_dev_ctxt);                }            }        } while (b_continue);        if (!vcd_core_is_busy(p_dev_ctxt)) {            rc = vcd_power_event(p_dev_ctxt, NULL,                                 VCD_EVT_PWR_CLNT_CMD_END);            if (VCD_FAILED(rc))                VCD_MSG_ERROR("Failed:"                              "VCD_EVT_PWR_CLNT_CMD_END");//.........这里部分代码省略.........