C++ (Cpp) rk30_i2c_irq_nextblockの例

コード例 #1

ファイル: i2c-rk30-adapter.c プロジェクト: Ciastex/kernel_rk3168_86v_yk

static irqreturn_t rk30_i2c_irq(int irq, void *dev_id)
{
        struct rk30_i2c *i2c = dev_id;
        unsigned int ipd;

        spin_lock(&i2c->lock);
        ipd = i2c_readl(i2c->regs + I2C_IPD);
        if(i2c->state == STATE_IDLE){
                dev_info(i2c->dev, "Addr[0x%02x]  irq in STATE_IDLE, ipd = 0x%x\n", i2c->addr, ipd);
                i2c_writel(I2C_IPD_ALL_CLEAN, i2c->regs + I2C_IPD);
                goto out;
        }

#if defined(CONFIG_MFD_TRS65910)	//for trs65910 Trsilicon peter
	if(ipd & I2C_NAKRCVIPD && i2c->addr == 0x2d){
		i2c_writel(I2C_NAKRCVIPD, i2c->regs + I2C_IPD);
		goto out;
	}else  if(ipd & I2C_NAKRCVIPD){
		i2c_writel(I2C_NAKRCVIPD, i2c->regs + I2C_IPD);
		i2c->error = -EAGAIN;
		goto out;
	}
#else
	if(ipd & I2C_NAKRCVIPD){
		i2c_writel(I2C_NAKRCVIPD, i2c->regs + I2C_IPD);
		i2c->error = -EAGAIN;
		goto out;
	}
#endif
        rk30_i2c_irq_nextblock(i2c, ipd);
out:
        spin_unlock(&i2c->lock);
        return IRQ_HANDLED;
}

コード例 #2

ファイル: i2c-rk30-adapter.c プロジェクト: davidftv/rk3x_kernel_3.0.36

static irqreturn_t rk30_i2c_irq(int irq, void *dev_id)
{
    struct rk30_i2c *i2c = dev_id;
    unsigned int ipd;

    spin_lock(&i2c->lock);
    ipd = i2c_readl(i2c->regs + I2C_IPD);
    if(i2c->state == STATE_IDLE) {
        dev_info(i2c->dev, "Addr[0x%02x]  irq in STATE_IDLE, ipd = 0x%x\n", i2c->addr, ipd);
        i2c_writel(I2C_IPD_ALL_CLEAN, i2c->regs + I2C_IPD);
        goto out;
    }

    if(ipd & I2C_NAKRCVIPD) {
        i2c_writel(I2C_NAKRCVIPD, i2c->regs + I2C_IPD);
        i2c->error = -EAGAIN;
        goto out;
    }
    rk30_i2c_irq_nextblock(i2c, ipd);
out:
    spin_unlock(&i2c->lock);
    return IRQ_HANDLED;
}