summaryrefslogtreecommitdiff
path: root/sound/soc/fsl/fsl_dma.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2008-01-31 23:16:28 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2008-01-31 23:16:28 (GMT)
commite1a9c9872dd004617555dff079b357a6ffd945e9 (patch)
treec34779e59712ff345f8e4ee97e74086a85b34974 /sound/soc/fsl/fsl_dma.h
parentfcc3ff4f9d695a80dc6e6058e0d631a3026ed4c3 (diff)
parent2ecba4ffbbc6c85fce8c3878514be415edace413 (diff)
downloadlinux-fsl-qoriq-e1a9c9872dd004617555dff079b357a6ffd945e9.tar.xz
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/perex/alsa
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/perex/alsa: (299 commits) [ALSA] version 1.0.16rc2 [ALSA] hda: fix Mic in as output [ALSA] emu10k1 - Another EMU0404 Board ID [ALSA] emu10k1 - Fix kthread handling at resume [ALSA] emu10k1: General cleanup, add new locks, fix alsa bug#3501, kernel bug#9304. [ALSA] emu10k1 - Use enum for emu_model types [ALSA] emu10k1 - Don't create emu1010 controls for non-emu boards [ALSA] emu10k1 - 1616(M) cardbus improvements [ALSA] snd:emu10k1: E-Mu updates. Fixes to firmware loading and support for 0404. [ALSA] emu10k1: Add comments regarding E-Mu ins and outs. [ALSA] oxygen: revert SPI clock frequency change for AK4396/WM8785 [ALSA] es1938 - improve capture hw pointer reads [ALSA] HDA-Intel - Add support for Intel SCH [ALSA] hda: Add GPIO mute support to STAC9205 [ALSA] hda-codec - Add Dell T3400 support [ALSA] hda-codec - Add model for HP DV9553EG laptop [ALSA] hda-codec - Control SPDIF as slave [ALSA] hda_intel: ALSA HD Audio patch for Intel ICH10 DeviceID's [ALSA] Fix Oops with PCM OSS sync [ALSA] hda-codec - Add speaker automute to ALC262 HP models ...
Diffstat (limited to 'sound/soc/fsl/fsl_dma.h')
-rw-r--r--sound/soc/fsl/fsl_dma.h149
1 files changed, 149 insertions, 0 deletions
diff --git a/sound/soc/fsl/fsl_dma.h b/sound/soc/fsl/fsl_dma.h
new file mode 100644
index 0000000..430a6ce
--- /dev/null
+++ b/sound/soc/fsl/fsl_dma.h
@@ -0,0 +1,149 @@
+/*
+ * mpc8610-pcm.h - ALSA PCM interface for the Freescale MPC8610 SoC
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _MPC8610_PCM_H
+#define _MPC8610_PCM_H
+
+struct ccsr_dma {
+ u8 res0[0x100];
+ struct ccsr_dma_channel {
+ __be32 mr; /* Mode register */
+ __be32 sr; /* Status register */
+ __be32 eclndar; /* Current link descriptor extended addr reg */
+ __be32 clndar; /* Current link descriptor address register */
+ __be32 satr; /* Source attributes register */
+ __be32 sar; /* Source address register */
+ __be32 datr; /* Destination attributes register */
+ __be32 dar; /* Destination address register */
+ __be32 bcr; /* Byte count register */
+ __be32 enlndar; /* Next link descriptor extended address reg */
+ __be32 nlndar; /* Next link descriptor address register */
+ u8 res1[4];
+ __be32 eclsdar; /* Current list descriptor extended addr reg */
+ __be32 clsdar; /* Current list descriptor address register */
+ __be32 enlsdar; /* Next list descriptor extended address reg */
+ __be32 nlsdar; /* Next list descriptor address register */
+ __be32 ssr; /* Source stride register */
+ __be32 dsr; /* Destination stride register */
+ u8 res2[0x38];
+ } channel[4];
+ __be32 dgsr;
+};
+
+#define CCSR_DMA_MR_BWC_DISABLED 0x0F000000
+#define CCSR_DMA_MR_BWC_SHIFT 24
+#define CCSR_DMA_MR_BWC_MASK 0x0F000000
+#define CCSR_DMA_MR_BWC(x) \
+ ((ilog2(x) << CCSR_DMA_MR_BWC_SHIFT) & CCSR_DMA_MR_BWC_MASK)
+#define CCSR_DMA_MR_EMP_EN 0x00200000
+#define CCSR_DMA_MR_EMS_EN 0x00040000
+#define CCSR_DMA_MR_DAHTS_MASK 0x00030000
+#define CCSR_DMA_MR_DAHTS_1 0x00000000
+#define CCSR_DMA_MR_DAHTS_2 0x00010000
+#define CCSR_DMA_MR_DAHTS_4 0x00020000
+#define CCSR_DMA_MR_DAHTS_8 0x00030000
+#define CCSR_DMA_MR_SAHTS_MASK 0x0000C000
+#define CCSR_DMA_MR_SAHTS_1 0x00000000
+#define CCSR_DMA_MR_SAHTS_2 0x00004000
+#define CCSR_DMA_MR_SAHTS_4 0x00008000
+#define CCSR_DMA_MR_SAHTS_8 0x0000C000
+#define CCSR_DMA_MR_DAHE 0x00002000
+#define CCSR_DMA_MR_SAHE 0x00001000
+#define CCSR_DMA_MR_SRW 0x00000400
+#define CCSR_DMA_MR_EOSIE 0x00000200
+#define CCSR_DMA_MR_EOLNIE 0x00000100
+#define CCSR_DMA_MR_EOLSIE 0x00000080
+#define CCSR_DMA_MR_EIE 0x00000040
+#define CCSR_DMA_MR_XFE 0x00000020
+#define CCSR_DMA_MR_CDSM_SWSM 0x00000010
+#define CCSR_DMA_MR_CA 0x00000008
+#define CCSR_DMA_MR_CTM 0x00000004
+#define CCSR_DMA_MR_CC 0x00000002
+#define CCSR_DMA_MR_CS 0x00000001
+
+#define CCSR_DMA_SR_TE 0x00000080
+#define CCSR_DMA_SR_CH 0x00000020
+#define CCSR_DMA_SR_PE 0x00000010
+#define CCSR_DMA_SR_EOLNI 0x00000008
+#define CCSR_DMA_SR_CB 0x00000004
+#define CCSR_DMA_SR_EOSI 0x00000002
+#define CCSR_DMA_SR_EOLSI 0x00000001
+
+/* ECLNDAR takes bits 32-36 of the CLNDAR register */
+static inline u32 CCSR_DMA_ECLNDAR_ADDR(u64 x)
+{
+ return (x >> 32) & 0xf;
+}
+
+#define CCSR_DMA_CLNDAR_ADDR(x) ((x) & 0xFFFFFFFE)
+#define CCSR_DMA_CLNDAR_EOSIE 0x00000008
+
+/* SATR and DATR, combined */
+#define CCSR_DMA_ATR_PBATMU 0x20000000
+#define CCSR_DMA_ATR_TFLOWLVL_0 0x00000000
+#define CCSR_DMA_ATR_TFLOWLVL_1 0x06000000
+#define CCSR_DMA_ATR_TFLOWLVL_2 0x08000000
+#define CCSR_DMA_ATR_TFLOWLVL_3 0x0C000000
+#define CCSR_DMA_ATR_PCIORDER 0x02000000
+#define CCSR_DMA_ATR_SME 0x01000000
+#define CCSR_DMA_ATR_NOSNOOP 0x00040000
+#define CCSR_DMA_ATR_SNOOP 0x00050000
+#define CCSR_DMA_ATR_ESAD_MASK 0x0000000F
+
+/**
+ * List Descriptor for extended chaining mode DMA operations.
+ *
+ * The CLSDAR register points to the first (in a linked-list) List
+ * Descriptor. Each object must be aligned on a 32-byte boundary. Each
+ * list descriptor points to a linked-list of link Descriptors.
+ */
+struct fsl_dma_list_descriptor {
+ __be64 next; /* Address of next list descriptor */
+ __be64 first_link; /* Address of first link descriptor */
+ __be32 source; /* Source stride */
+ __be32 dest; /* Destination stride */
+ u8 res[8]; /* Reserved */
+} __attribute__ ((aligned(32), packed));
+
+/**
+ * Link Descriptor for basic and extended chaining mode DMA operations.
+ *
+ * A Link Descriptor points to a single DMA buffer. Each link descriptor
+ * must be aligned on a 32-byte boundary.
+ */
+struct fsl_dma_link_descriptor {
+ __be32 source_attr; /* Programmed into SATR register */
+ __be32 source_addr; /* Programmed into SAR register */
+ __be32 dest_attr; /* Programmed into DATR register */
+ __be32 dest_addr; /* Programmed into DAR register */
+ __be64 next; /* Address of next link descriptor */
+ __be32 count; /* Byte count */
+ u8 res[4]; /* Reserved */
+} __attribute__ ((aligned(32), packed));
+
+/* DMA information needed to create a snd_soc_cpu_dai object
+ *
+ * ssi_stx_phys: bus address of SSI STX register to use
+ * ssi_srx_phys: bus address of SSI SRX register to use
+ * dma[0]: points to the DMA channel to use for playback
+ * dma[1]: points to the DMA channel to use for capture
+ * dma_irq[0]: IRQ of the DMA channel to use for playback
+ * dma_irq[1]: IRQ of the DMA channel to use for capture
+ */
+struct fsl_dma_info {
+ dma_addr_t ssi_stx_phys;
+ dma_addr_t ssi_srx_phys;
+ struct ccsr_dma_channel __iomem *dma_channel[2];
+ unsigned int dma_irq[2];
+};
+
+extern struct snd_soc_platform fsl_soc_platform;
+
+int fsl_dma_configure(struct fsl_dma_info *dma_info);
+
+#endif