Cross Reference: /drivers/dma/ipu/ipu

Lines Matching defs:ipu
25 #include <linux/dma/ipu-dma.h>
39  *	struct ipu *ipu = to_ipu(to_idmac(ichan->dma_chan.device));
42 static struct ipu ipu_data;
44 #define to_ipu(id) container_of(id, struct ipu, idmac)
46 static u32 __idmac_read_icreg(struct ipu *ipu, unsigned long reg)
48 	return __raw_readl(ipu->reg_ic + reg);
51 #define idmac_read_icreg(ipu, reg) __idmac_read_icreg(ipu, reg - IC_CONF)
53 static void __idmac_write_icreg(struct ipu *ipu, u32 value, unsigned long reg)
55 	__raw_writel(value, ipu->reg_ic + reg);
58 #define idmac_write_icreg(ipu, v, reg) __idmac_write_icreg(ipu, v, reg - IC_CONF)
60 static u32 idmac_read_ipureg(struct ipu *ipu, unsigned long reg)
62 	return __raw_readl(ipu->reg_ipu + reg);
65 static void idmac_write_ipureg(struct ipu *ipu, u32 value, unsigned long reg)
67 	__raw_writel(value, ipu->reg_ipu + reg);
73 static void dump_idmac_reg(struct ipu *ipu)
75 	dev_dbg(ipu->dev, "IDMAC_CONF 0x%x, IC_CONF 0x%x, IDMAC_CHA_EN 0x%x, "
77 		idmac_read_icreg(ipu, IDMAC_CONF),
78 		idmac_read_icreg(ipu, IC_CONF),
79 		idmac_read_icreg(ipu, IDMAC_CHA_EN),
80 		idmac_read_icreg(ipu, IDMAC_CHA_PRI),
81 		idmac_read_icreg(ipu, IDMAC_CHA_BUSY));
82 	dev_dbg(ipu->dev, "BUF0_RDY 0x%x, BUF1_RDY 0x%x, CUR_BUF 0x%x, "
84 		idmac_read_ipureg(ipu, IPU_CHA_BUF0_RDY),
85 		idmac_read_ipureg(ipu, IPU_CHA_BUF1_RDY),
86 		idmac_read_ipureg(ipu, IPU_CHA_CUR_BUF),
87 		idmac_read_ipureg(ipu, IPU_CHA_DB_MODE_SEL),
88 		idmac_read_ipureg(ipu, IPU_TASKS_STAT));
116 static void ipu_ic_enable_task(struct ipu *ipu, enum ipu_channel channel)
130 	ic_conf = idmac_read_icreg(ipu, IC_CONF) | mask;
131 	idmac_write_icreg(ipu, ic_conf, IC_CONF);
135 static void ipu_ic_disable_task(struct ipu *ipu, enum ipu_channel channel)
149 	ic_conf = idmac_read_icreg(ipu, IC_CONF) & ~mask;
150 	idmac_write_icreg(ipu, ic_conf, IC_CONF);
153 static uint32_t ipu_channel_status(struct ipu *ipu, enum ipu_channel channel)
156 	uint32_t task_stat_reg = idmac_read_ipureg(ipu, IPU_TASKS_STAT);
418 			"mx3 ipu: unimplemented pixel format %d\n", pixel_fmt);
511 static int ipu_ic_init_prpenc(struct ipu *ipu,
539 		dev_err(ipu->dev, "Colourspace conversion unsupported!\n");
543 	idmac_write_icreg(ipu, reg, IC_PRP_ENC_RSC);
545 	ic_conf = idmac_read_icreg(ipu, IC_CONF);
552 	idmac_write_icreg(ipu, ic_conf, IC_CONF);
563 static void ipu_channel_set_priority(struct ipu *ipu, enum ipu_channel channel,
566 	u32 reg = idmac_read_icreg(ipu, IDMAC_CHA_PRI);
573 	idmac_write_icreg(ipu, reg, IDMAC_CHA_PRI);
575 	dump_idmac_reg(ipu);
607 	struct ipu *ipu = to_ipu(idmac);
612 	spin_lock_irqsave(&ipu->lock, flags);
615 	idmac_write_ipureg(ipu, 1UL << channel, IPU_CHA_CUR_BUF);
623 		ipu_channel_set_priority(ipu, channel, true);
628 	reg = idmac_read_icreg(ipu, IDMAC_CHA_EN);
630 	idmac_write_icreg(ipu, reg | (1UL << channel), IDMAC_CHA_EN);
632 	ipu_ic_enable_task(ipu, channel);
634 	spin_unlock_irqrestore(&ipu->lock, flags);
662 	struct ipu *ipu = to_ipu(idmac);
671 		dev_err(ipu->dev,
679 		dev_err(ipu->dev, "Stride must be 8 pixel multiple\n");
688 	spin_lock_irqsave(&ipu->lock, flags);
692 	reg = idmac_read_ipureg(ipu, IPU_CHA_DB_MODE_SEL);
699 	idmac_write_ipureg(ipu, reg, IPU_CHA_DB_MODE_SEL);
703 	spin_unlock_irqrestore(&ipu->lock, flags);
827 	struct ipu *ipu = to_ipu(idmac);
871 	/* ipu->lock can be taken under ichan->lock, but not v.v. */
893 	dump_idmac_reg(ipu);
957 	struct ipu *ipu = to_ipu(idmac);
960 	dev_dbg(ipu->dev, "init channel = %d\n", channel);
966 	spin_lock_irqsave(&ipu->lock, flags);
971 		reg = idmac_read_icreg(ipu, IC_CONF);
972 		idmac_write_icreg(ipu, reg & ~IC_CONF_CSI_MEM_WR_EN, IC_CONF);
976 		reg = idmac_read_ipureg(ipu, IPU_FS_PROC_FLOW);
977 		idmac_write_ipureg(ipu, reg & ~FS_ENC_IN_VALID, IPU_FS_PROC_FLOW);
978 		ret = ipu_ic_init_prpenc(ipu, params, true);
987 	ipu->channel_init_mask |= 1L << channel;
990 	ipu_conf = idmac_read_ipureg(ipu, IPU_CONF) |
992 	idmac_write_ipureg(ipu, ipu_conf, IPU_CONF);
994 	spin_unlock_irqrestore(&ipu->lock, flags);
999 	dump_idmac_reg(ipu);
1016 	struct ipu *ipu = to_ipu(idmac);
1018 	spin_lock_irqsave(&ipu->lock, flags);
1020 	if (!(ipu->channel_init_mask & chan_mask)) {
1021 		dev_err(ipu->dev, "Channel already uninitialized %d\n",
1023 		spin_unlock_irqrestore(&ipu->lock, flags);
1028 	reg = idmac_read_ipureg(ipu, IPU_CHA_DB_MODE_SEL);
1029 	idmac_write_ipureg(ipu, reg & ~chan_mask, IPU_CHA_DB_MODE_SEL);
1035 		reg = idmac_read_icreg(ipu, IC_CONF);
1036 		idmac_write_icreg(ipu, reg & ~(IC_CONF_RWS_EN | IC_CONF_PRPENC_EN),
1040 		reg = idmac_read_icreg(ipu, IC_CONF);
1041 		idmac_write_icreg(ipu, reg & ~(IC_CONF_PRPENC_EN | IC_CONF_PRPENC_CSC1),
1050 	ipu->channel_init_mask &= ~(1L << channel);
1052 	ipu_conf = idmac_read_ipureg(ipu, IPU_CONF) &
1054 	idmac_write_ipureg(ipu, ipu_conf, IPU_CONF);
1056 	spin_unlock_irqrestore(&ipu->lock, flags);
1075 	struct ipu *ipu = to_ipu(idmac);
1084 		while ((idmac_read_icreg(ipu, IDMAC_CHA_BUSY) & chan_mask) ||
1085 		       (ipu_channel_status(ipu, channel) == TASK_STAT_ACTIVE)) {
1090 				dev_dbg(ipu->dev,
1094 					idmac_read_ipureg(ipu, IPU_CHA_BUF0_RDY),
1095 					idmac_read_ipureg(ipu, IPU_CHA_BUF1_RDY),
1096 					idmac_read_icreg(ipu, IDMAC_CHA_BUSY),
1097 					idmac_read_ipureg(ipu, IPU_TASKS_STAT));
1101 		dev_dbg(ipu->dev, "timeout = %d * 10ms\n", 40 - timeout);
1111 	spin_lock_irqsave(&ipu->lock, flags);
1114 	ipu_ic_disable_task(ipu, channel);
1117 	reg = idmac_read_icreg(ipu, IDMAC_CHA_EN);
1118 	idmac_write_icreg(ipu, reg & ~chan_mask, IDMAC_CHA_EN);
1120 	spin_unlock_irqrestore(&ipu->lock, flags);
1308 	struct ipu *ipu = (struct ipu *)arg;
1312 		struct idmac_channel *ichan = ipu->channel + i;
1385 	struct ipu *ipu = to_ipu(idmac);
1389 	spin_lock_irqsave(&ipu->lock, flags);
1391 	spin_unlock_irqrestore(&ipu->lock, flags);
1406 	struct ipu *ipu = to_ipu(idmac);
1413 		spin_lock_irqsave(&ipu->lock, flags);
1414 		ipu_ic_disable_task(ipu, chan->chan_id);
1423 		spin_unlock_irqrestore(&ipu->lock, flags);
1431 		tasklet_disable(&ipu->tasklet);
1451 		tasklet_enable(&ipu->tasklet);
1607 static int __init ipu_idmac_init(struct ipu *ipu)
1609 	struct idmac *idmac = &ipu->idmac;
1617 	dma->dev				= ipu->dev;
1629 		struct idmac_channel *ichan = ipu->channel + i;
1645 	idmac_write_icreg(ipu, 0x00000070, IDMAC_CONF);
1650 static void ipu_idmac_exit(struct ipu *ipu)
1653 	struct idmac *idmac = &ipu->idmac;
1656 		struct idmac_channel *ichan = ipu->channel + i;
1766 	struct ipu *ipu = platform_get_drvdata(pdev);
1768 	ipu_idmac_exit(ipu);
1769 	ipu_irq_detach_irq(ipu, pdev);
1770 	clk_disable_unprepare(ipu->ipu_clk);
1771 	clk_put(ipu->ipu_clk);
1772 	iounmap(ipu->reg_ic);
1773 	iounmap(ipu->reg_ipu);
1774 	tasklet_kill(&ipu->tasklet);
1785 		.name	= "ipu-core",
1800 MODULE_ALIAS("platform:ipu-core");