1 files changed, 233 insertions, 0 deletions

diff --git a/sound/soc/intel/sst-dsp.h b/sound/soc/intel/sst-dsp.h
new file mode 100644
index 000000000000..74052b59485c
--- /dev/null
+++ b/sound/soc/intel/sst-dsp.h
@@ -0,0 +1,233 @@
+/*
+ * Intel Smart Sound Technology (SST) Core
+ *
+ * Copyright (C) 2013, Intel Corporation. All rights reserved.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __SOUND_SOC_SST_DSP_H
+#define __SOUND_SOC_SST_DSP_H
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+
+/* SST Device IDs  */
+#define SST_DEV_ID_LYNX_POINT           0x33C8
+#define SST_DEV_ID_WILDCAT_POINT        0x3438
+#define SST_DEV_ID_BYT                  0x0F28
+
+/* Supported SST DMA Devices */
+#define SST_DMA_TYPE_DW         1
+#define SST_DMA_TYPE_MID        2
+
+/* SST Shim register map
+ * The register naming can differ between products. Some products also
+ * contain extra functionality.
+ */
+#define SST_CSR                 0x00
+#define SST_PISR                0x08
+#define SST_PIMR                0x10
+#define SST_ISRX                0x18
+#define SST_ISRD                0x20
+#define SST_IMRX                0x28
+#define SST_IMRD                0x30
+#define SST_IPCX                0x38 /* IPC IA -> SST */
+#define SST_IPCD                0x40 /* IPC SST -> IA */
+#define SST_ISRSC               0x48
+#define SST_ISRLPESC            0x50
+#define SST_IMRSC               0x58
+#define SST_IMRLPESC            0x60
+#define SST_IPCSC               0x68
+#define SST_IPCLPESC            0x70
+#define SST_CLKCTL              0x78
+#define SST_CSR2                0x80
+#define SST_LTRC                0xE0
+#define SST_HDMC                0xE8
+#define SST_DBGO                0xF0
+
+#define SST_SHIM_SIZE           0x100
+#define SST_PWMCTRL             0x1000
+
+/* SST Shim Register bits
+ * The register bit naming can differ between products. Some products also
+ * contain extra functionality.
+ */
+
+/* CSR / CS */
+#define SST_CSR_RST             (0x1 << 1)
+#define SST_CSR_SBCS0           (0x1 << 2)
+#define SST_CSR_SBCS1           (0x1 << 3)
+#define SST_CSR_DCS(x)          (x << 4)
+#define SST_CSR_DCS_MASK        (0x7 << 4)
+#define SST_CSR_STALL           (0x1 << 10)
+#define SST_CSR_S0IOCS          (0x1 << 21)
+#define SST_CSR_S1IOCS          (0x1 << 23)
+#define SST_CSR_LPCS            (0x1 << 31)
+#define SST_BYT_CSR_RST         (0x1 << 0)
+#define SST_BYT_CSR_VECTOR_SEL  (0x1 << 1)
+#define SST_BYT_CSR_STALL       (0x1 << 2)
+#define SST_BYT_CSR_PWAITMODE   (0x1 << 3)
+
+/*  ISRX / ISC */
+#define SST_ISRX_BUSY           (0x1 << 1)
+#define SST_ISRX_DONE           (0x1 << 0)
+#define SST_BYT_ISRX_REQUEST    (0x1 << 1)
+
+/*  ISRD / ISD */
+#define SST_ISRD_BUSY           (0x1 << 1)
+#define SST_ISRD_DONE           (0x1 << 0)
+
+/* IMRX / IMC */
+#define SST_IMRX_BUSY           (0x1 << 1)
+#define SST_IMRX_DONE           (0x1 << 0)
+#define SST_BYT_IMRX_REQUEST    (0x1 << 1)
+
+/*  IPCX / IPCC */
+#define SST_IPCX_DONE           (0x1 << 30)
+#define SST_IPCX_BUSY           (0x1 << 31)
+#define SST_BYT_IPCX_DONE       ((u64)0x1 << 62)
+#define SST_BYT_IPCX_BUSY       ((u64)0x1 << 63)
+
+/*  IPCD */
+#define SST_IPCD_DONE           (0x1 << 30)
+#define SST_IPCD_BUSY           (0x1 << 31)
+#define SST_BYT_IPCD_DONE       ((u64)0x1 << 62)
+#define SST_BYT_IPCD_BUSY       ((u64)0x1 << 63)
+
+/* CLKCTL */
+#define SST_CLKCTL_SMOS(x)      (x << 24)
+#define SST_CLKCTL_MASK         (3 << 24)
+#define SST_CLKCTL_DCPLCG       (1 << 18)
+#define SST_CLKCTL_SCOE1        (1 << 17)
+#define SST_CLKCTL_SCOE0        (1 << 16)
+
+/* CSR2 / CS2 */
+#define SST_CSR2_SDFD_SSP0      (1 << 1)
+#define SST_CSR2_SDFD_SSP1      (1 << 2)
+
+/* LTRC */
+#define SST_LTRC_VAL(x)         (x << 0)
+
+/* HDMC */
+#define SST_HDMC_HDDA0(x)       (x << 0)
+#define SST_HDMC_HDDA1(x)       (x << 7)
+
+
+/* SST Vendor Defined Registers and bits */
+#define SST_VDRTCTL0            0xa0
+#define SST_VDRTCTL1            0xa4
+#define SST_VDRTCTL2            0xa8
+#define SST_VDRTCTL3            0xaC
+
+/* VDRTCTL0 */
+#define SST_VDRTCL0_DSRAMPGE_SHIFT      16
+#define SST_VDRTCL0_DSRAMPGE_MASK       (0xffff << SST_VDRTCL0_DSRAMPGE_SHIFT)
+#define SST_VDRTCL0_ISRAMPGE_SHIFT      6
+#define SST_VDRTCL0_ISRAMPGE_MASK       (0x3ff << SST_VDRTCL0_ISRAMPGE_SHIFT)
+
+struct sst_dsp;
+
+/*
+ * SST Device.
+ *
+ * This structure is populated by the SST core driver.
+ */
+struct sst_dsp_device {
+        /* Mandatory fields */
+        struct sst_ops *ops;
+        irqreturn_t (*thread)(int irq, void *context);
+        void *thread_context;
+};
+
+/*
+ * SST Platform Data.
+ */
+struct sst_pdata {
+        /* ACPI data */
+        u32 lpe_base;
+        u32 lpe_size;
+        u32 pcicfg_base;
+        u32 pcicfg_size;
+        u32 fw_base;
+        u32 fw_size;
+        int irq;
+
+        /* Firmware */
+        const struct firmware *fw;
+
+        /* DMA */
+        u32 dma_base;
+        u32 dma_size;
+        int dma_engine;
+
+        /* DSP */
+        u32 id;
+        void *dsp;
+};
+
+/* Initialization */
+struct sst_dsp *sst_dsp_new(struct device *dev,
+        struct sst_dsp_device *sst_dev, struct sst_pdata *pdata);
+void sst_dsp_free(struct sst_dsp *sst);
+
+/* SHIM Read / Write */
+void sst_dsp_shim_write(struct sst_dsp *sst, u32 offset, u32 value);
+u32 sst_dsp_shim_read(struct sst_dsp *sst, u32 offset);
+int sst_dsp_shim_update_bits(struct sst_dsp *sst, u32 offset,
+                                u32 mask, u32 value);
+void sst_dsp_shim_write64(struct sst_dsp *sst, u32 offset, u64 value);
+u64 sst_dsp_shim_read64(struct sst_dsp *sst, u32 offset);
+int sst_dsp_shim_update_bits64(struct sst_dsp *sst, u32 offset,
+                                u64 mask, u64 value);
+
+/* SHIM Read / Write Unlocked for callers already holding sst lock */
+void sst_dsp_shim_write_unlocked(struct sst_dsp *sst, u32 offset, u32 value);
+u32 sst_dsp_shim_read_unlocked(struct sst_dsp *sst, u32 offset);
+int sst_dsp_shim_update_bits_unlocked(struct sst_dsp *sst, u32 offset,
+                                u32 mask, u32 value);
+void sst_dsp_shim_write64_unlocked(struct sst_dsp *sst, u32 offset, u64 value);
+u64 sst_dsp_shim_read64_unlocked(struct sst_dsp *sst, u32 offset);
+int sst_dsp_shim_update_bits64_unlocked(struct sst_dsp *sst, u32 offset,
+                                        u64 mask, u64 value);
+
+/* Internal generic low-level SST IO functions - can be overidden */
+void sst_shim32_write(void __iomem *addr, u32 offset, u32 value);
+u32 sst_shim32_read(void __iomem *addr, u32 offset);
+void sst_shim32_write64(void __iomem *addr, u32 offset, u64 value);
+u64 sst_shim32_read64(void __iomem *addr, u32 offset);
+void sst_memcpy_toio_32(struct sst_dsp *sst,
+                        void __iomem *dest, void *src, size_t bytes);
+void sst_memcpy_fromio_32(struct sst_dsp *sst,
+                          void *dest, void __iomem *src, size_t bytes);
+
+/* DSP reset & boot */
+void sst_dsp_reset(struct sst_dsp *sst);
+int sst_dsp_boot(struct sst_dsp *sst);
+
+/* Msg IO */
+void sst_dsp_ipc_msg_tx(struct sst_dsp *dsp, u32 msg);
+u32 sst_dsp_ipc_msg_rx(struct sst_dsp *dsp);
+
+/* Mailbox management */
+int sst_dsp_mailbox_init(struct sst_dsp *dsp, u32 inbox_offset,
+        size_t inbox_size, u32 outbox_offset, size_t outbox_size);
+void sst_dsp_inbox_write(struct sst_dsp *dsp, void *message, size_t bytes);
+void sst_dsp_inbox_read(struct sst_dsp *dsp, void *message, size_t bytes);
+void sst_dsp_outbox_write(struct sst_dsp *dsp, void *message, size_t bytes);
+void sst_dsp_outbox_read(struct sst_dsp *dsp, void *message, size_t bytes);
+void sst_dsp_mailbox_dump(struct sst_dsp *dsp, size_t bytes);
+
+/* Debug */
+void sst_dsp_dump(struct sst_dsp *sst);
+
+#endif