From: Boojin Kim <boojin.kim@samsung.com> To: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org Cc: Vinod Koul <vinod.koul@intel.com>, Dan Williams <dan.j.williams@intel.com>, Jassi Brar <jassisinghbrar@gmail.com>, Kukjin Kim <kgene.kim@samsung.com>, Grant Likely <grant.likely@secretlab.ca>, Mark Brown <broonie@opensource.wolfsonmicro.com>, Boojin Kim <boojin.kim@samsung.com> Subject: [PATCH V4 03/14] DMA: PL330: Support DMA_SLAVE_CONFIG command Date: Mon, 25 Jul 2011 10:28:21 +0900 [thread overview] Message-ID: <1311557312-26107-4-git-send-email-boojin.kim@samsung.com> (raw) In-Reply-To: <1311557312-26107-1-git-send-email-boojin.kim@samsung.com> This patch adds support DMA_SLAVE_CONFIG command. Signed-off-by: Boojin Kim <boojin.kim@samsung.com> --- drivers/dma/pl330.c | 53 +++++++++++++++++++++++++++++++++++++------------- 1 files changed, 39 insertions(+), 14 deletions(-) diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 586ab39..880f010 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -256,25 +256,50 @@ static int pl330_alloc_chan_resources(struct dma_chan *chan) static int pl330_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, unsigned long arg) { struct dma_pl330_chan *pch = to_pchan(chan); - struct dma_pl330_desc *desc; + struct dma_pl330_desc *desc, *_dt; unsigned long flags; + struct dma_pl330_dmac *pdmac = pch->dmac; + struct dma_slave_config *slave_config; + struct dma_pl330_peri *peri; + LIST_HEAD(list); - /* Only supports DMA_TERMINATE_ALL */ - if (cmd != DMA_TERMINATE_ALL) - return -ENXIO; - - spin_lock_irqsave(&pch->lock, flags); - - /* FLUSH the PL330 Channel thread */ - pl330_chan_ctrl(pch->pl330_chid, PL330_OP_FLUSH); + switch (cmd) { + case DMA_TERMINATE_ALL: + spin_lock_irqsave(&pch->lock, flags); - /* Mark all desc done */ - list_for_each_entry(desc, &pch->work_list, node) - desc->status = DONE; + /* FLUSH the PL330 Channel thread */ + pl330_chan_ctrl(pch->pl330_chid, PL330_OP_FLUSH); - spin_unlock_irqrestore(&pch->lock, flags); + /* Mark all desc done */ + list_for_each_entry_safe(desc, _dt, &pch->work_list , node) { + desc->status = DONE; + pch->completed = desc->txd.cookie; + list_move_tail(&desc->node, &list); + } - pl330_tasklet((unsigned long) pch); + list_splice_tail_init(&list, &pdmac->desc_pool); + spin_unlock_irqrestore(&pch->lock, flags); + break; + case DMA_SLAVE_CONFIG: + slave_config = (struct dma_slave_config *)arg; + peri = pch->chan.private; + + if (slave_config->direction == DMA_TO_DEVICE) { + if (slave_config->dst_addr) + peri->fifo_addr = slave_config->dst_addr; + if (slave_config->dst_addr_width) + peri->burst_sz = __ffs(slave_config->dst_addr_width); + } else if (slave_config->direction == DMA_FROM_DEVICE) { + if (slave_config->src_addr) + peri->fifo_addr = slave_config->src_addr; + if (slave_config->src_addr_width) + peri->burst_sz = __ffs(slave_config->src_addr_width); + } + break; + default: + dev_err(pch->dmac->pif.dev, "Not supported command.\n"); + return -ENXIO; + } return 0; } -- 1.7.1
WARNING: multiple messages have this Message-ID (diff)
From: boojin.kim@samsung.com (Boojin Kim) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH V4 03/14] DMA: PL330: Support DMA_SLAVE_CONFIG command Date: Mon, 25 Jul 2011 10:28:21 +0900 [thread overview] Message-ID: <1311557312-26107-4-git-send-email-boojin.kim@samsung.com> (raw) In-Reply-To: <1311557312-26107-1-git-send-email-boojin.kim@samsung.com> This patch adds support DMA_SLAVE_CONFIG command. Signed-off-by: Boojin Kim <boojin.kim@samsung.com> --- drivers/dma/pl330.c | 53 +++++++++++++++++++++++++++++++++++++------------- 1 files changed, 39 insertions(+), 14 deletions(-) diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 586ab39..880f010 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -256,25 +256,50 @@ static int pl330_alloc_chan_resources(struct dma_chan *chan) static int pl330_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, unsigned long arg) { struct dma_pl330_chan *pch = to_pchan(chan); - struct dma_pl330_desc *desc; + struct dma_pl330_desc *desc, *_dt; unsigned long flags; + struct dma_pl330_dmac *pdmac = pch->dmac; + struct dma_slave_config *slave_config; + struct dma_pl330_peri *peri; + LIST_HEAD(list); - /* Only supports DMA_TERMINATE_ALL */ - if (cmd != DMA_TERMINATE_ALL) - return -ENXIO; - - spin_lock_irqsave(&pch->lock, flags); - - /* FLUSH the PL330 Channel thread */ - pl330_chan_ctrl(pch->pl330_chid, PL330_OP_FLUSH); + switch (cmd) { + case DMA_TERMINATE_ALL: + spin_lock_irqsave(&pch->lock, flags); - /* Mark all desc done */ - list_for_each_entry(desc, &pch->work_list, node) - desc->status = DONE; + /* FLUSH the PL330 Channel thread */ + pl330_chan_ctrl(pch->pl330_chid, PL330_OP_FLUSH); - spin_unlock_irqrestore(&pch->lock, flags); + /* Mark all desc done */ + list_for_each_entry_safe(desc, _dt, &pch->work_list , node) { + desc->status = DONE; + pch->completed = desc->txd.cookie; + list_move_tail(&desc->node, &list); + } - pl330_tasklet((unsigned long) pch); + list_splice_tail_init(&list, &pdmac->desc_pool); + spin_unlock_irqrestore(&pch->lock, flags); + break; + case DMA_SLAVE_CONFIG: + slave_config = (struct dma_slave_config *)arg; + peri = pch->chan.private; + + if (slave_config->direction == DMA_TO_DEVICE) { + if (slave_config->dst_addr) + peri->fifo_addr = slave_config->dst_addr; + if (slave_config->dst_addr_width) + peri->burst_sz = __ffs(slave_config->dst_addr_width); + } else if (slave_config->direction == DMA_FROM_DEVICE) { + if (slave_config->src_addr) + peri->fifo_addr = slave_config->src_addr; + if (slave_config->src_addr_width) + peri->burst_sz = __ffs(slave_config->src_addr_width); + } + break; + default: + dev_err(pch->dmac->pif.dev, "Not supported command.\n"); + return -ENXIO; + } return 0; } -- 1.7.1
next prev parent reply other threads:[~2011-07-25 1:34 UTC|newest] Thread overview: 146+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-07-25 1:28 [RESEND] [PATCH V4 0/14] To use DMA generic APIs for Samsung DMA Boojin Kim 2011-07-25 1:28 ` Boojin Kim 2011-07-25 1:28 ` [PATCH V4 01/14] DMA: PL330: Add support runtime PM for PL330 DMAC Boojin Kim 2011-07-25 1:28 ` Boojin Kim 2011-07-26 6:03 ` Chanwoo Choi 2011-07-26 6:03 ` Chanwoo Choi 2011-07-25 1:28 ` [PATCH V4 02/14] DMA: PL330: Update PL330 DMA API driver Boojin Kim 2011-07-25 1:28 ` Boojin Kim 2011-07-25 8:57 ` Jassi Brar 2011-07-25 8:57 ` Jassi Brar 2011-07-25 9:48 ` Boojin Kim 2011-07-25 9:48 ` Boojin Kim 2011-07-25 1:28 ` Boojin Kim [this message] 2011-07-25 1:28 ` [PATCH V4 03/14] DMA: PL330: Support DMA_SLAVE_CONFIG command Boojin Kim 2011-07-25 10:26 ` Vinod Koul 2011-07-25 10:26 ` Vinod Koul 2011-07-25 12:51 ` Boojin Kim 2011-07-25 12:51 ` Boojin Kim 2011-07-25 13:48 ` Vinod Koul 2011-07-25 13:48 ` Vinod Koul 2011-07-26 13:04 ` Boojin Kim 2011-07-26 13:04 ` Boojin Kim 2011-07-26 13:12 ` Russell King - ARM Linux 2011-07-26 13:12 ` Russell King - ARM Linux 2011-07-25 1:28 ` [PATCH V4 04/14] DMA: PL330: Add DMA_CYCLIC capability Boojin Kim 2011-07-25 1:28 ` Boojin Kim 2011-07-25 9:27 ` Russell King - ARM Linux 2011-07-25 9:27 ` Russell King - ARM Linux 2011-07-25 10:31 ` Boojin Kim 2011-07-25 10:31 ` Boojin Kim 2011-07-25 10:36 ` Russell King - ARM Linux 2011-07-25 10:36 ` Russell King - ARM Linux 2011-07-25 10:48 ` Vinod Koul 2011-07-25 10:48 ` Vinod Koul 2011-07-25 10:57 ` Russell King - ARM Linux 2011-07-25 10:57 ` Russell King - ARM Linux 2011-07-25 11:01 ` Vinod Koul 2011-07-25 11:01 ` Vinod Koul 2011-07-25 11:39 ` Russell King - ARM Linux 2011-07-25 11:39 ` Russell King - ARM Linux 2011-07-25 12:01 ` Vinod Koul 2011-07-25 12:01 ` Vinod Koul 2011-07-26 7:57 ` [PATCH] Improve slave/cyclic DMA engine documentation (was: [PATCH V4 04/14] DMA: PL330: Add DMA_CYCLIC capability) Russell King - ARM Linux 2011-07-26 7:57 ` Russell King - ARM Linux 2011-07-26 9:35 ` Vinod Koul 2011-07-26 9:35 ` Vinod Koul 2011-07-26 14:37 ` Jassi Brar 2011-07-26 14:37 ` Jassi Brar 2011-07-26 17:20 ` Russell King - ARM Linux 2011-07-26 17:20 ` Russell King - ARM Linux 2011-07-26 17:55 ` Jassi Brar 2011-07-26 17:55 ` Jassi Brar 2011-07-26 18:03 ` Grant Likely 2011-07-26 18:03 ` Grant Likely 2011-07-26 18:16 ` Russell King - ARM Linux 2011-07-26 18:16 ` Russell King - ARM Linux 2011-07-27 2:38 ` Vinod Koul 2011-07-27 2:38 ` Vinod Koul 2011-07-27 9:01 ` Russell King - ARM Linux 2011-07-27 9:01 ` Russell King - ARM Linux 2011-07-27 9:06 ` Koul, Vinod 2011-07-27 9:06 ` Koul, Vinod 2011-07-26 13:25 ` Russell King - ARM Linux 2011-07-26 13:25 ` Russell King - ARM Linux 2011-07-25 12:36 ` [PATCH V4 04/14] DMA: PL330: Add DMA_CYCLIC capability Boojin Kim 2011-07-25 12:36 ` Boojin Kim 2011-07-25 12:34 ` Boojin Kim 2011-07-25 12:34 ` Boojin Kim 2011-07-25 11:24 ` Jassi Brar 2011-07-25 11:24 ` Jassi Brar 2011-07-26 12:28 ` Boojin Kim 2011-07-26 12:28 ` Boojin Kim 2011-07-25 1:28 ` [PATCH V4 05/14] ARM: SAMSUNG: Update to use PL330-DMA driver Boojin Kim 2011-07-25 1:28 ` Boojin Kim 2011-07-25 10:52 ` Vinod Koul 2011-07-25 10:52 ` Vinod Koul 2011-07-25 11:31 ` Jassi Brar 2011-07-25 11:31 ` Jassi Brar 2011-07-25 1:28 ` [PATCH V4 06/14] ARM: SAMSUNG: Add common DMA operations Boojin Kim 2011-07-25 1:28 ` Boojin Kim 2011-07-25 9:36 ` Russell King - ARM Linux 2011-07-25 9:36 ` Russell King - ARM Linux 2011-07-25 9:57 ` Boojin Kim 2011-07-25 9:57 ` Boojin Kim 2011-07-25 11:51 ` Jassi Brar 2011-07-25 11:51 ` Jassi Brar 2011-07-26 8:02 ` Russell King - ARM Linux 2011-07-26 8:02 ` Russell King - ARM Linux 2011-07-26 17:43 ` Jassi Brar 2011-07-26 17:43 ` Jassi Brar 2011-07-26 18:14 ` Russell King - ARM Linux 2011-07-26 18:14 ` Russell King - ARM Linux 2011-07-26 19:54 ` Jassi Brar 2011-07-26 19:54 ` Jassi Brar 2011-07-26 9:35 ` Boojin Kim 2011-07-26 9:35 ` Boojin Kim 2011-07-27 1:33 ` Jassi Brar 2011-07-27 1:33 ` Jassi Brar 2011-07-27 5:17 ` Boojin Kim 2011-07-27 5:17 ` Boojin Kim 2011-07-27 7:57 ` Jassi Brar 2011-07-27 7:57 ` Jassi Brar 2011-07-28 0:38 ` Boojin Kim 2011-07-28 0:38 ` Boojin Kim 2011-07-25 1:28 ` [PATCH V4 07/14] ARM: EXYNOS4: Use generic DMA PL330 driver Boojin Kim 2011-07-25 1:28 ` Boojin Kim 2011-07-25 11:59 ` Jassi Brar 2011-07-25 11:59 ` Jassi Brar 2011-07-25 12:59 ` Boojin Kim 2011-07-25 12:59 ` Boojin Kim 2011-07-25 1:28 ` [PATCH V4 08/14] ARM: S5PV210: " Boojin Kim 2011-07-25 1:28 ` Boojin Kim 2011-07-25 1:28 ` [PATCH V4 09/14] ARM: S5PC100: " Boojin Kim 2011-07-25 1:28 ` Boojin Kim 2011-07-25 1:28 ` [PATCH V4 10/14] ARM: S5P64X0: " Boojin Kim 2011-07-25 1:28 ` Boojin Kim 2011-07-25 1:28 ` [PATCH V4 11/14] ARM: SAMSUNG: Remove S3C-PL330-DMA driver Boojin Kim 2011-07-25 1:28 ` Boojin Kim 2011-07-25 1:28 ` [PATCH V4 12/14] spi/s3c64xx: Add support DMA engine API Boojin Kim 2011-07-25 1:28 ` Boojin Kim 2011-07-25 9:40 ` Russell King - ARM Linux 2011-07-25 9:40 ` Russell King - ARM Linux 2011-07-25 10:34 ` Boojin Kim 2011-07-25 10:34 ` Boojin Kim 2011-07-25 11:17 ` Vinod Koul 2011-07-25 11:17 ` Vinod Koul 2011-07-26 9:31 ` Boojin Kim 2011-07-26 9:31 ` Boojin Kim 2011-07-26 10:14 ` Vinod Koul 2011-07-26 10:14 ` Vinod Koul 2011-07-27 5:05 ` Boojin Kim 2011-07-27 5:05 ` Boojin Kim 2011-07-25 1:28 ` [PATCH V4 13/14] ASoC: Samsung: Update DMA interface Boojin Kim 2011-07-25 1:28 ` Boojin Kim 2011-07-25 1:28 ` [PATCH V4 14/14] ARM: SAMSUNG: Remove Samsung specific enum type for dma direction Boojin Kim 2011-07-25 1:28 ` Boojin Kim 2011-07-25 12:08 ` Jassi Brar 2011-07-25 12:08 ` Jassi Brar 2011-07-25 21:15 ` Grant Likely 2011-07-25 21:15 ` Grant Likely 2011-07-28 1:23 ` Boojin Kim 2011-07-28 1:23 ` Boojin Kim 2011-07-25 10:17 ` [RESEND] [PATCH V4 0/14] To use DMA generic APIs for Samsung DMA Vinod Koul 2011-07-25 10:17 ` Vinod Koul 2011-07-25 11:09 ` Vinod Koul 2011-07-25 11:09 ` Vinod Koul
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