C++ pr_dbg函数代码示例

static int gx1001_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
{
	struct gx1001_state *state = fe->demodulator_priv;
	
	demod_connect(state, p->frequency,p->u.qam.modulation,p->u.qam.symbol_rate);
	state->freq=p->frequency;
	state->mode=p->u.qam.modulation ;
	state->symbol_rate=p->u.qam.symbol_rate; //these data will be writed to eeprom
	
	pr_dbg("gx1001=>frequency=%d,symbol_rate=%d\r\n",p->frequency,p->u.qam.symbol_rate);
	return  0;
}

static void dib7090_fe_release(struct aml_dvb *advb, struct aml_fe *fe)
{
	if(fe && fe->fe) {
		pr_dbg("release fe Dib7090 %d\n", fe->id);
		dvb_unregister_frontend(fe->fe);
		dvb_frontend_detach(fe->fe);
		dib7090_fe_cfg_put(fe->cfg);
		fe->fe = NULL;
		fe->cfg = NULL;
		fe->id = -1;
	}
}

int demod_check_locked(unsigned char* lock)
{
	if(CXD2837_GetTPLock(cxd2837)==SONY_RESULT_OK)
	{
		pr_dbg("demod_check_locked !!\n");
		*lock =1;
		return 1;
	}
	*lock =0;
	return 0;

}

int rdma_rm_modify_qp(RdmaDeviceResources *dev_res, RdmaBackendDev *backend_dev,
                      uint32_t qp_handle, uint32_t attr_mask,
                      union ibv_gid *dgid, uint32_t dqpn,
                      enum ibv_qp_state qp_state, uint32_t qkey,
                      uint32_t rq_psn, uint32_t sq_psn)
{
    RdmaRmQP *qp;
    int ret;

    pr_dbg("qpn=%d\n", qp_handle);

    qp = rdma_rm_get_qp(dev_res, qp_handle);
    if (!qp) {
        return -EINVAL;
    }

    pr_dbg("qp_type=%d\n", qp->qp_type);
    pr_dbg("attr_mask=0x%x\n", attr_mask);

    if (qp->qp_type == IBV_QPT_SMI) {
        pr_dbg("QP0 unsupported\n");
        return -EPERM;
    } else if (qp->qp_type == IBV_QPT_GSI) {
        pr_dbg("QP1\n");
        return 0;
    }

    if (attr_mask & IBV_QP_STATE) {
        qp->qp_state = qp_state;
        pr_dbg("qp_state=%d\n", qp->qp_state);

        if (qp->qp_state == IBV_QPS_INIT) {
            ret = rdma_backend_qp_state_init(backend_dev, &qp->backend_qp,
                                             qp->qp_type, qkey);
            if (ret) {
                return -EIO;
            }
        }

        if (qp->qp_state == IBV_QPS_RTR) {
            ret = rdma_backend_qp_state_rtr(backend_dev, &qp->backend_qp,
                                            qp->qp_type, dgid, dqpn, rq_psn,
                                            qkey, attr_mask & IBV_QP_QKEY);
            if (ret) {
                return -EIO;
            }
        }

        if (qp->qp_state == IBV_QPS_RTS) {
            ret = rdma_backend_qp_state_rts(&qp->backend_qp, qp->qp_type,
                                            sq_psn, qkey,
                                            attr_mask & IBV_QP_QKEY);
            if (ret) {
                return -EIO;
            }
        }
    }

    return 0;
}

/*
 *  killer()
 *	this continually stops and continues the runner process
 */
static void killer(
	const char *name,
	const pid_t pid,
	uint64_t *counter,
	const uint64_t max_ops)
{
	double start = time_now();
	uint64_t last_counter = *counter;

	pr_dbg(stderr, "%s: wait: killer started [%d]\n", name, getpid());

	do {
		(void)kill(pid, SIGSTOP);
		(void)kill(pid, SIGCONT);

		/*
		 *  The waits may be blocked and
		 *  so the counter is not being updated.
		 *  If it is blocked for too long bail out
		 *  so we don't get stuck in the parent
		 *  waiter indefintely.
		 */
		if (last_counter == *counter) {
			if (time_now() - start > ABORT_TIMEOUT) {
				pr_dbg(stderr, "%s: waits were blocked, "
					"aborting\n", name);
				break;
			}
		} else {
			start = time_now();
			last_counter = *counter;
		}
	} while (opt_do_run && (!max_ops || *counter < max_ops));

	/* forcefully kill runner, wait is in parent */
	(void)kill(pid, SIGKILL);
	/* tell parent to wake up! */
	(void)kill(getppid(), SIGALRM);
	exit(EXIT_SUCCESS);
}

static void cdx2834_fe_release(struct aml_dvb *advb, struct aml_fe *fe)
{
	if(fe && fe->fe) {
		pr_dbg("release GX1001 frontend %d\n", fe->id);
		dvb_unregister_frontend(fe->fe);
		dvb_frontend_detach(fe->fe);
		if(fe->cfg){
			kfree(fe->cfg);
			fe->cfg = NULL;
		}
		fe->id = -1;
	}
}

/**
 * file_exists()
 * @path: file to check.
 * Determine if specified file exists.
 *
 * Returns: file type if @path exists, else 0.
 **/
static int file_exists(const char *path)
{
	struct stat st;

	if (!path) {
		pr_dbg("%s: empty path specified\n", __func__);
		return 0;
	}
	if (stat(path, &st) < 0)
		return 0;

	return (st.st_mode & S_IFMT);
}

static int mxl101_fe_enter_mode(struct aml_fe *fe, int mode)
{
	struct aml_fe_dev *dev = fe->dtv_demod;

	pr_dbg("=========================demod init\r\n");
	gpio_direction_output(dev->reset_gpio, dev->reset_value);
	msleep(300);
	gpio_direction_output(dev->reset_gpio, !dev->reset_value); //enable tuner power
	msleep(200);
	MxL101SF_Init(dev);

	return 0;
}

void *rdma_rm_get_cqe_ctx(RdmaDeviceResources *dev_res, uint32_t cqe_ctx_id)
{
    void **cqe_ctx;

    cqe_ctx = res_tbl_get(&dev_res->cqe_ctx_tbl, cqe_ctx_id);
    if (!cqe_ctx) {
        return NULL;
    }

    pr_dbg("ctx=%p\n", *cqe_ctx);

    return *cqe_ctx;
}

static int modify_qp(PVRDMADev *dev, union pvrdma_cmd_req *req,
                     union pvrdma_cmd_resp *rsp)
{
    struct pvrdma_cmd_modify_qp *cmd = &req->modify_qp;

    pr_dbg("qp_handle=%d\n", cmd->qp_handle);

    memset(rsp, 0, sizeof(*rsp));
    rsp->hdr.response = cmd->hdr.response;
    rsp->hdr.ack = PVRDMA_CMD_MODIFY_QP_RESP;

    rsp->hdr.err = rdma_rm_modify_qp(&dev->rdma_dev_res, &dev->backend_dev,
                                 cmd->qp_handle, cmd->attr_mask,
                                 (union ibv_gid *)&cmd->attrs.ah_attr.grh.dgid,
                                 cmd->attrs.dest_qp_num,
                                 (enum ibv_qp_state)cmd->attrs.qp_state,
                                 cmd->attrs.qkey, cmd->attrs.rq_psn,
                                 cmd->attrs.sq_psn);

    pr_dbg("ret=%d\n", rsp->hdr.err);
    return rsp->hdr.err;
}

static int AVL6211_Blindscan_Cancel(struct dvb_frontend* fe)
{
		blindstart=0;
		printk(KERN_INFO "AVL6211_Blindscan_Cancel\n");
		while(2!=blindstart){
				pr_dbg("wait for scan exit\n");
				msleep(100);
		}
		/*call do_exit() directly*/
		dvbs2_task = NULL;
		fe_use = NULL;
		return 0;
}

static int cdx2834_fe_init(struct aml_dvb *advb, struct platform_device *pdev, struct aml_fe *fe, int id)
{
	struct dvb_frontend_ops *ops;
	int ret;
	struct resource *res;
	struct cdx2834_fe_config *cfg;
	char buf[32];
	
	pr_dbg("init CDX2834 frontend %d\n", id);


	cfg = kzalloc(sizeof(struct cdx2834_fe_config), GFP_KERNEL);
	if (!cfg)
		return -ENOMEM;
	
	cfg->reset_pin = frontend_reset;
	if(cfg->reset_pin==-1) {
		snprintf(buf, sizeof(buf), "frontend%d_reset", id);
		res = platform_get_resource_byname(pdev, IORESOURCE_MEM, buf);
		if (!res) {
			pr_error("cannot get resource \"%s\"\n", buf);
			ret = -EINVAL;
			goto err_resource;
		}
		cfg->reset_pin = res->start;		
	}
	
	cfg->i2c_id = frontend_i2c;
	if(cfg->i2c_id==-1) {
		snprintf(buf, sizeof(buf), "frontend%d_i2c", id);
		res = platform_get_resource_byname(pdev, IORESOURCE_MEM, buf);
		if (!res) {
			pr_error("cannot get resource \"%s\"\n", buf);
			ret = -EINVAL;
			goto err_resource;
		}
		cfg->i2c_id = res->start;
	}
	
	cfg->tuner_addr = frontend_tuner_addr;
	
	if(cfg->tuner_addr==-1) {
		snprintf(buf, sizeof(buf), "frontend%d_tuner_addr", id);
		res = platform_get_resource_byname(pdev, IORESOURCE_MEM, buf);
		if (!res) {
			pr_error("cannot get resource \"%s\"\n", buf);
			ret = -EINVAL;
			goto err_resource;
		}
		cfg->tuner_addr = res->start>>1;
	}

int32_t cr_access_vmexit_handler(struct acrn_vcpu *vcpu)
{
	uint64_t reg;
	uint32_t idx;
	uint64_t exit_qual;
	int32_t ret = 0;

	exit_qual = vcpu->arch.exit_qualification;
	idx = (uint32_t)vm_exit_cr_access_reg_idx(exit_qual);

	ASSERT((idx <= 15U), "index out of range");
	reg = vcpu_get_gpreg(vcpu, idx);

	switch ((vm_exit_cr_access_type(exit_qual) << 4U) | vm_exit_cr_access_cr_num(exit_qual)) {
	case 0x00UL:
		/* mov to cr0 */
		vcpu_set_cr0(vcpu, reg);
		break;
	case 0x04UL:
		/* mov to cr4 */
		vcpu_set_cr4(vcpu, reg);
		break;
	case 0x08UL:
		/* mov to cr8 */
		/* According to SDM 6.15 "Exception and interrupt Reference":
		 *
		 * set reserved bit in CR8 causes GP to guest
		 */
		if ((reg & ~0xFUL) != 0UL) {
			pr_dbg("Invalid cr8 write operation from guest");
			vcpu_inject_gp(vcpu, 0U);
			break;
		}
		vlapic_set_cr8(vcpu_vlapic(vcpu), reg);
		break;
	case 0x18UL:
		/* mov from cr8 */
		reg = vlapic_get_cr8(vcpu_vlapic(vcpu));
		vcpu_set_gpreg(vcpu, idx, reg);
		break;
	default:
		ASSERT(false, "Unhandled CR access");
		ret = -EINVAL;
		break;
	}

	TRACE_2L(TRACE_VMEXIT_CR_ACCESS, vm_exit_cr_access_type(exit_qual),
			vm_exit_cr_access_cr_num(exit_qual));

	return ret;
}

static void adkeys_poll(struct adgpio_key_data *adkey)
{
    int advol, i;
    static struct adgpio_key *prev_keys = NULL;
    static T_ad_check state = PLUGIN_INVALID;
    static int is_change_flag = 0;

    advol = adc1_read_ad5();
    pr_dbg("poll: volatge: %d\n", advol);

    for (i = 0; i < adkey->naddet; i++) {
        if ((advol > adkey->addet[i].unpress_min)
                &&(advol < adkey->addet[i].unpress_max)) {

            adkey->keys = adkey->addet[i].fixkeys;
            if ((prev_keys != adkey->keys) || (state != adkey->addet[i].plugdev)) {
                prev_keys = adkey->keys;
                state = adkey->addet[i].plugdev;
                is_change_flag = 1;
            } else {
                is_change_flag = 0;
            }
            break;
        }
    }

    if (is_change_flag) {
        addetect_plugin_notify(state);
    }

    i = 0;
    do {
        if ((adkey->keys != NULL)
                && (advol > adkey->keys[i].min) && (advol < adkey->keys[i].max)) {
            adkey->press = 1;
            adkey->sync_me = 1;

            adkey->keycode = adkey->keys[i].code;
            adkey->loop = i;
            break;
        } else
            adkey->press = 0;

        i++;
    } while(i < adkey->nkey);

    if (adkey->sync_me) {
        mod_timer(&adkey->timer,
                  jiffies + msecs_to_jiffies(adkey->debounce_interval));
    }
}

static int smc_hw_read_atr(smc_dev_t *smc)
{
	char *ptr = smc->atr.atr;
	int his_len, t, tnext = 0, only_t0 = 1, loop_cnt=0;
	
	pr_dbg("read atr\n");
	
	smc->atr.atr_len = 0;
	if(smc_hw_get(smc, 2, 2000)<0)
		goto end;
	
	ptr++;
	his_len = ptr[0]&0x0F;
	
	do {
		tnext = 0;
		loop_cnt++;
		if(ptr[0]&0x10) {
			if(smc_hw_get(smc, 1, 1000)<0)
				goto end;
		}
		if(ptr[0]&0x20) {
			if(smc_hw_get(smc, 1, 1000)<0)
				goto end;
		}
		if(ptr[0]&0x40) {
			if(smc_hw_get(smc, 1, 1000)<0)
				goto end;
		}
		if(ptr[0]&0x80) {
			if(smc_hw_get(smc, 1, 1000)<0)
				goto end;
			ptr = &smc->atr.atr[smc->atr.atr_len-1];
			t = ptr[0]&0x0F;
			if(t) {
				only_t0 = 0;
			}
			if(ptr[0]&0xF0) {
				tnext = 1;
			}
		}
	} while(tnext && loop_cnt<4);
	
	if(!only_t0) his_len++;
	smc_hw_get(smc, his_len, 1000);

	return 0;

end:
	return -EIO;
}