From 7e994302ed3fc6d209ce247ad5b6d9c2499bf7c2 Mon Sep 17 00:00:00 2001
From: Steven Toth <stoth@hauppauge.com>
Date: Tue, 1 Jul 2008 21:18:00 -0300
Subject: V4L/DVB (8472): cx23885: SRAM changes for the 885 and 887 silicon
 parts.

In a previous patch I merged both memory maps into a single struct, believing
that they could be combined. We've since found problems with streaming
multiple channels on the 885. I'm restoring the multiple memory map structs
- in line with the windows driver.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---
 drivers/media/video/cx23885/cx23885-core.c | 116 ++++++++++++++++++++++++++++-
 1 file changed, 114 insertions(+), 2 deletions(-)

diff --git a/drivers/media/video/cx23885/cx23885-core.c b/drivers/media/video/cx23885/cx23885-core.c
index 3ae04d6e136..6286a9cf957 100644
--- a/drivers/media/video/cx23885/cx23885-core.c
+++ b/drivers/media/video/cx23885/cx23885-core.c
@@ -76,7 +76,7 @@ LIST_HEAD(cx23885_devlist);
  * 0x00010ea0 0x00010xxx Free
  */
 
-static struct sram_channel cx23887_sram_channels[] = {
+static struct sram_channel cx23885_sram_channels[] = {
 	[SRAM_CH01] = {
 		.name		= "VID A",
 		.cmds_start	= 0x10000,
@@ -187,6 +187,117 @@ static struct sram_channel cx23887_sram_channels[] = {
 	},
 };
 
+static struct sram_channel cx23887_sram_channels[] = {
+	[SRAM_CH01] = {
+		.name		= "VID A",
+		.cmds_start	= 0x10000,
+		.ctrl_start	= 0x105b0,
+		.cdt		= 0x107b0,
+		.fifo_start	= 0x40,
+		.fifo_size	= 0x2800,
+		.ptr1_reg	= DMA1_PTR1,
+		.ptr2_reg	= DMA1_PTR2,
+		.cnt1_reg	= DMA1_CNT1,
+		.cnt2_reg	= DMA1_CNT2,
+	},
+	[SRAM_CH02] = {
+		.name		= "ch2",
+		.cmds_start	= 0x0,
+		.ctrl_start	= 0x0,
+		.cdt		= 0x0,
+		.fifo_start	= 0x0,
+		.fifo_size	= 0x0,
+		.ptr1_reg	= DMA2_PTR1,
+		.ptr2_reg	= DMA2_PTR2,
+		.cnt1_reg	= DMA2_CNT1,
+		.cnt2_reg	= DMA2_CNT2,
+	},
+	[SRAM_CH03] = {
+		.name		= "TS1 B",
+		.cmds_start	= 0x100A0,
+		.ctrl_start	= 0x10630,
+		.cdt		= 0x10870,
+		.fifo_start	= 0x5000,
+		.fifo_size	= 0x1000,
+		.ptr1_reg	= DMA3_PTR1,
+		.ptr2_reg	= DMA3_PTR2,
+		.cnt1_reg	= DMA3_CNT1,
+		.cnt2_reg	= DMA3_CNT2,
+	},
+	[SRAM_CH04] = {
+		.name		= "ch4",
+		.cmds_start	= 0x0,
+		.ctrl_start	= 0x0,
+		.cdt		= 0x0,
+		.fifo_start	= 0x0,
+		.fifo_size	= 0x0,
+		.ptr1_reg	= DMA4_PTR1,
+		.ptr2_reg	= DMA4_PTR2,
+		.cnt1_reg	= DMA4_CNT1,
+		.cnt2_reg	= DMA4_CNT2,
+	},
+	[SRAM_CH05] = {
+		.name		= "ch5",
+		.cmds_start	= 0x0,
+		.ctrl_start	= 0x0,
+		.cdt		= 0x0,
+		.fifo_start	= 0x0,
+		.fifo_size	= 0x0,
+		.ptr1_reg	= DMA5_PTR1,
+		.ptr2_reg	= DMA5_PTR2,
+		.cnt1_reg	= DMA5_CNT1,
+		.cnt2_reg	= DMA5_CNT2,
+	},
+	[SRAM_CH06] = {
+		.name		= "TS2 C",
+		.cmds_start	= 0x10140,
+		.ctrl_start	= 0x10670,
+		.cdt		= 0x108d0,
+		.fifo_start	= 0x6000,
+		.fifo_size	= 0x1000,
+		.ptr1_reg	= DMA5_PTR1,
+		.ptr2_reg	= DMA5_PTR2,
+		.cnt1_reg	= DMA5_CNT1,
+		.cnt2_reg	= DMA5_CNT2,
+	},
+	[SRAM_CH07] = {
+		.name		= "ch7",
+		.cmds_start	= 0x0,
+		.ctrl_start	= 0x0,
+		.cdt		= 0x0,
+		.fifo_start	= 0x0,
+		.fifo_size	= 0x0,
+		.ptr1_reg	= DMA6_PTR1,
+		.ptr2_reg	= DMA6_PTR2,
+		.cnt1_reg	= DMA6_CNT1,
+		.cnt2_reg	= DMA6_CNT2,
+	},
+	[SRAM_CH08] = {
+		.name		= "ch8",
+		.cmds_start	= 0x0,
+		.ctrl_start	= 0x0,
+		.cdt		= 0x0,
+		.fifo_start	= 0x0,
+		.fifo_size	= 0x0,
+		.ptr1_reg	= DMA7_PTR1,
+		.ptr2_reg	= DMA7_PTR2,
+		.cnt1_reg	= DMA7_CNT1,
+		.cnt2_reg	= DMA7_CNT2,
+	},
+	[SRAM_CH09] = {
+		.name		= "ch9",
+		.cmds_start	= 0x0,
+		.ctrl_start	= 0x0,
+		.cdt		= 0x0,
+		.fifo_start	= 0x0,
+		.fifo_size	= 0x0,
+		.ptr1_reg	= DMA8_PTR1,
+		.ptr2_reg	= DMA8_PTR2,
+		.cnt1_reg	= DMA8_CNT1,
+		.cnt2_reg	= DMA8_CNT2,
+	},
+};
+
 static int cx23885_risc_decode(u32 risc)
 {
 	static char *instr[16] = {
@@ -626,7 +737,6 @@ static int cx23885_dev_setup(struct cx23885_dev *dev)
 	atomic_inc(&dev->refcount);
 
 	dev->nr = cx23885_devcount++;
-	dev->sram_channels = cx23887_sram_channels;
 	sprintf(dev->name, "cx23885[%d]", dev->nr);
 
 	mutex_lock(&devlist);
@@ -638,11 +748,13 @@ static int cx23885_dev_setup(struct cx23885_dev *dev)
 		dev->bridge = CX23885_BRIDGE_887;
 		/* Apply a sensible clock frequency for the PCIe bridge */
 		dev->clk_freq = 25000000;
+		dev->sram_channels = cx23887_sram_channels;
 	} else
 	if(dev->pci->device == 0x8852) {
 		dev->bridge = CX23885_BRIDGE_885;
 		/* Apply a sensible clock frequency for the PCIe bridge */
 		dev->clk_freq = 28000000;
+		dev->sram_channels = cx23885_sram_channels;
 	} else
 		BUG();
 
-- 
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