hikey960: HiFi3 DSP firmware and documentation

HiFi3 DSP firmware source code, documentation to build and understand DSP

Change-Id: I752416536cc2165868c56d2a2ba2d60b71c2b9a4
Signed-off-by: Niranjan Yadla <nyadla@cadence.com>
diff --git a/hifi/xaf/hifi-dpf/audio/xa-class-base.c b/hifi/xaf/hifi-dpf/audio/xa-class-base.c
new file mode 100644
index 0000000..0b67255
--- /dev/null
+++ b/hifi/xaf/hifi-dpf/audio/xa-class-base.c
@@ -0,0 +1,537 @@
+/*******************************************************************************
+* Copyright (C) 2018 Cadence Design Systems, Inc.
+* 
+* Permission is hereby granted, free of charge, to any person obtaining
+* a copy of this software and associated documentation files (the
+* "Software"), to use this Software with Cadence processor cores only and 
+* not with any other processors and platforms, subject to
+* the following conditions:
+* 
+* The above copyright notice and this permission notice shall be included
+* in all copies or substantial portions of the Software.
+* 
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+******************************************************************************/
+
+/*******************************************************************************
+ * xa-class-base.c
+ *
+ * Generic audio codec task implementation
+ *
+ ******************************************************************************/
+
+#define MODULE_TAG                      BASE
+
+/*******************************************************************************
+ * Includes
+ ******************************************************************************/
+
+#include "xf.h"
+#include "xa-class-base.h"
+
+/*******************************************************************************
+ * Tracing configuration
+ ******************************************************************************/
+
+TRACE_TAG(INIT, 1);
+TRACE_TAG(WARNING, 1);
+TRACE_TAG(SETUP, 1);
+TRACE_TAG(EXEC, 1);
+
+/*******************************************************************************
+ * Internal functions definitions
+ ******************************************************************************/
+
+/* ...codec pre-initialization */
+static XA_ERRORCODE xa_base_preinit(XACodecBase *base, u32 core)
+{
+    WORD32      n;
+
+    /* ...codec must be empty */
+    XF_CHK_ERR(base->state == 0, XA_API_FATAL_INVALID_CMD);
+
+    /* ...get API structure size */
+    XA_API(base, XA_API_CMD_GET_API_SIZE, 0, &n);
+
+    /* ...allocate memory for codec API structure (4-bytes aligned) */
+    XMALLOC(&base->api, n, 4, core);
+
+    /* ...set default config parameters */
+    XA_API(base, XA_API_CMD_INIT, XA_CMD_TYPE_INIT_API_PRE_CONFIG_PARAMS, NULL);
+
+    /* ...get memory info tables size */
+    if (XA_API(base, XA_API_CMD_GET_MEMTABS_SIZE, 0, &n), n != 0)
+    {
+        /* ...allocate memory for tables (4-bytes aligned) */
+        XMALLOC(&base->mem_tabs, n, 4, core);
+
+        /* ...set pointer for process memory tables */
+        XA_API(base, XA_API_CMD_SET_MEMTABS_PTR, 0, base->mem_tabs.addr);
+    }
+    
+    TRACE(INIT, _b("Codec[%p] pre-initialization completed"), base);
+    
+    return XA_NO_ERROR;
+}
+
+/* ...post-initialization setup */
+static XA_ERRORCODE xa_base_postinit(XACodecBase *base, u32 core)
+{
+    WORD32  n, i;
+    
+    /* ...issue post-config command and determine the buffer requirements */
+    XA_API(base, XA_API_CMD_INIT, XA_CMD_TYPE_INIT_API_POST_CONFIG_PARAMS, NULL);
+
+    /* ...get number of memory tables required */
+    XA_API(base, XA_API_CMD_GET_N_MEMTABS, 0, &n);
+
+    /* ...set scratch buffer in advance (as codec not necessarily exposes it) */
+    base->scratch = XF_CORE_DATA(core)->scratch;
+
+    /* ...allocate memory buffers */
+    for (i = 0; i < n; i++)
+    {
+        WORD32      size, align, type;
+
+        TRACE(1, _b("i = %u (of %u)"), (u32)i, (u32)n);
+        
+        /* ...get memory type */
+        XA_API(base, XA_API_CMD_GET_MEM_INFO_TYPE, i, &type);
+
+        /* ...get memory size of i-th buffer */
+        XA_API(base, XA_API_CMD_GET_MEM_INFO_SIZE, i, &size);
+
+        /* ...get alignment */
+        XA_API(base, XA_API_CMD_GET_MEM_INFO_ALIGNMENT, i, &align);
+
+        /* ...process individual buffer */
+        switch (type)
+        {
+        case XA_MEMTYPE_SCRATCH:
+            /* ...scratch memory is shared among all codecs; check its validity */
+            XF_CHK_ERR(size <= XF_CFG_CODEC_SCRATCHMEM_SIZE, XA_API_FATAL_MEM_ALLOC);
+
+            /* ...make sure alignment is sane */
+            XF_CHK_ERR((XF_CFG_CODEC_SCRATCHMEM_ALIGN & (align - 1)) == 0, XA_API_FATAL_MEM_ALIGN);
+
+            /* ...set the scratch memory pointer */
+            XA_API(base, XA_API_CMD_SET_MEM_PTR, i, base->scratch);
+
+            TRACE(INIT, _b("Mem tab %d: sz=%d al=%d ty=%d Scratch memory (%p)"), i, size, align, type, base->scratch);
+
+            break;
+
+        case XA_MEMTYPE_PERSIST:
+            /* ...allocate persistent memory */
+            XMALLOC(&base->persist, size, align, core);
+
+            /* ...and set the pointer instantly */
+            XA_API(base, XA_API_CMD_SET_MEM_PTR, i, base->persist.addr);
+
+            TRACE(INIT, _b("Mem tab %d: sz=%d al=%d ty=%d Persistent memory (%p)"), i, size, align, type, base->persist.addr);
+
+            break;
+
+        case XA_MEMTYPE_INPUT:
+        case XA_MEMTYPE_OUTPUT:
+            /* ...input/output buffer specification; pass to codec function */
+            CODEC_API(base, memtab, i, type, size, align, core);
+
+            break;
+
+        default:
+            /* ...unrecognized memory type */
+            TRACE(ERROR, _x("Invalid memory type: [%d]=(%u, %u, %u)"), i, type, size, align);
+            return XA_API_FATAL_INVALID_CMD_TYPE;
+        }
+    }
+
+    TRACE(INIT, _b("Codec[%p] post-initialization completed (api:%p[%u])"), base, base->api.addr, base->api.size);
+
+    return XA_NO_ERROR;
+}
+
+/*******************************************************************************
+ * Commands processing
+ ******************************************************************************/
+
+/* ...SET-PARAM processing (enabled in all states) */
+XA_ERRORCODE xa_base_set_param(XACodecBase *base, xf_message_t *m)
+{
+    xf_set_param_msg_t     *cmd = m->buffer;
+    xf_set_param_item_t    *param = &cmd->item[0];
+    WORD32                  n, i;
+
+    /* ...calculate total amount of parameters */
+    n = m->length / sizeof(*param);
+
+    /* ...check the message length is sane */
+    XF_CHK_ERR(m->length == XF_SET_PARAM_CMD_LEN(n), XA_API_FATAL_INVALID_CMD_TYPE);
+
+    /* ...apply all parameters; pass to codec-specific function */
+    for (i = 0; i < n; i++)
+    {
+        TRACE(SETUP, _b("set-param[%p]: [%u]=%u"), base, param[i].id, param[i].value);
+
+        if (base->setparam)
+        {
+            CODEC_API(base, setparam, param[i].id, &param[i].value);
+        }
+        else
+        {
+            XA_API(base, XA_API_CMD_SET_CONFIG_PARAM, param[i].id, &param[i].value);
+        }
+    }
+
+    /* ...check if we need to do post-initialization */
+    if ((base->state & XA_BASE_FLAG_POSTINIT) == 0)
+    {
+        /* ...do post-initialization step */
+        XA_CHK(xa_base_postinit(base, XF_MSG_DST_CORE(m->id)));
+        
+        /* ...mark the codec static configuration is set */
+        base->state ^= XA_BASE_FLAG_POSTINIT | XA_BASE_FLAG_RUNTIME_INIT;
+    }
+    
+    /* ...complete message processing; output buffer is empty */
+    xf_response_ok(m);
+
+    return XA_NO_ERROR;
+}
+
+/* ...GET-PARAM message processing (enabled in all states) */
+XA_ERRORCODE xa_base_get_param(XACodecBase *base, xf_message_t *m)
+{
+    xf_get_param_msg_t *cmd = m->buffer;
+    u32                *id = &cmd->c.id[0];
+    u32                *value = &cmd->r.value[0];
+    u32                 n, i;
+
+    /* ...calculate amount of parameters */
+    n = m->length / sizeof(*id);
+
+    /* ...check input parameter length */
+    XF_CHK_ERR(XF_GET_PARAM_CMD_LEN(n) == m->length, XA_API_FATAL_INVALID_CMD_TYPE);
+
+    /* ...retrieve the collection of codec  parameters */
+    for (i = 0; i < n; i++)
+    {
+        /* ...place the result into same location */
+        if (base->getparam)
+        {
+            CODEC_API(base, getparam, id[i], &value[i]);
+        }
+        else
+        {
+            XA_API(base, XA_API_CMD_GET_CONFIG_PARAM, id[i], &value[i]);
+        }
+    }
+
+    /* ...complete message specifying output buffer size */
+    xf_response_data(m, XF_GET_PARAM_RSP_LEN(n));
+
+    return XA_NO_ERROR;
+}
+
+/* ...SET-PARAM-EXT processing (enabled in all states) */
+XA_ERRORCODE xa_base_set_param_ext(XACodecBase *base, xf_message_t *m)
+{
+    xf_ext_param_msg_t *cmd = m->buffer;
+    u16                 length = m->length;
+    u16                 remaining = (length + 3) & ~3;
+    u16                 i;
+    
+    for (i = 0; TRACE_CFG(SETUP) && i < remaining; i += 16)
+    {
+        TRACE(SETUP, _b("[%03x]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X"),
+              i, 
+              ((u8 *)m->buffer)[i + 0], ((u8 *)m->buffer)[i + 1],
+              ((u8 *)m->buffer)[i + 2], ((u8 *)m->buffer)[i + 3],
+              ((u8 *)m->buffer)[i + 4], ((u8 *)m->buffer)[i + 5],
+              ((u8 *)m->buffer)[i + 6], ((u8 *)m->buffer)[i + 7],
+              ((u8 *)m->buffer)[i + 8], ((u8 *)m->buffer)[i + 9],
+              ((u8 *)m->buffer)[i + 10], ((u8 *)m->buffer)[i + 11],
+              ((u8 *)m->buffer)[i + 12], ((u8 *)m->buffer)[i + 13],
+              ((u8 *)m->buffer)[i + 14], ((u8 *)m->buffer)[i + 15]);
+    }    
+
+    /* ...process all parameters encapsulated in buffer */
+    while (remaining >= sizeof(*cmd))
+    {
+        u16     id = cmd->desc.id;
+        u16     dlen = cmd->desc.length;
+        u16     dsize = (dlen + 3) & ~3;
+        u16     pad = dlen & 3;
+
+        /* ...cut-off descriptor header */
+        remaining -= sizeof(*cmd);
+
+        TRACE(SETUP, _b("remaining:%u, desc_size:%u"), (u32)remaining, (u32)dsize);
+        
+        /* ...make sure length is sufficient */        
+        XF_CHK_ERR(remaining >= dsize, XA_API_FATAL_INVALID_CMD_TYPE);
+        
+        /* ...pad remaining bytes with zeroes */
+        (pad ? memset(cmd->data + dlen, 0, 4 - pad) : 0);
+
+        TRACE(SETUP, _b("set-ext-param[%p]: [%u]:%u - [%02X:%02X:%02X:%02X:...]"), base, id, dsize, cmd->data[0], cmd->data[1], cmd->data[2], cmd->data[3]);
+
+        /* ...apply parameter */
+        XA_API(base, XA_API_CMD_SET_CONFIG_PARAM, id, cmd->data);
+
+        /* ...move to next item (keep 4-bytes alignment for descriptor) */
+        cmd = (xf_ext_param_msg_t *)(&cmd->data[0] + dsize), remaining -= dsize;
+    }
+    
+    /* ...check the message is fully processed */
+    XF_CHK_ERR(remaining == 0, XA_API_FATAL_INVALID_CMD_TYPE);
+
+    /* ...complete message processing; output buffer is empty */
+    //xf_response_ok(m);
+
+    /* ...unfortunately, it looks like a bug of the library that updates the memory
+     * and leaves it in a dirty state causing subsequent cache inconsistency - tbd
+     */
+    xf_response_data(m, length);
+
+    return XA_NO_ERROR;
+}
+
+/* ...GET-PARAM-EXT message processing (enabled in all states) */
+XA_ERRORCODE xa_base_get_param_ext(XACodecBase *base, xf_message_t *m)
+{
+    xf_ext_param_msg_t *cmd = m->buffer;
+    u32                 length = m->length;
+    u32                 remaining = (length + 3) & ~3;
+    int                 i;
+
+    for (i = 0; TRACE_CFG(SETUP) && i < remaining; i += 16)
+    {
+        TRACE(SETUP, _b("[%03x]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X"),
+              i, 
+              ((u8 *)m->buffer)[i + 0], ((u8 *)m->buffer)[i + 1],
+              ((u8 *)m->buffer)[i + 2], ((u8 *)m->buffer)[i + 3],
+              ((u8 *)m->buffer)[i + 4], ((u8 *)m->buffer)[i + 5],
+              ((u8 *)m->buffer)[i + 6], ((u8 *)m->buffer)[i + 7],
+              ((u8 *)m->buffer)[i + 8], ((u8 *)m->buffer)[i + 9],
+              ((u8 *)m->buffer)[i + 10], ((u8 *)m->buffer)[i + 11],
+              ((u8 *)m->buffer)[i + 12], ((u8 *)m->buffer)[i + 13],
+              ((u8 *)m->buffer)[i + 14], ((u8 *)m->buffer)[i + 15]);
+    }
+    
+    /* ...process all parameters encapsulated in buffer */
+    while (remaining >= sizeof(*cmd))
+    {
+        u16     id = cmd->desc.id;
+        u16     len = cmd->desc.length;
+        u16     size = (len + 3) & ~3;
+        u8      pad = len & 3;
+
+        /* ...cut-off command header */
+        remaining -= sizeof(*cmd);
+
+        /* ...make sure data buffer has sufficient length */
+        XF_CHK_ERR(remaining >= size, XA_API_FATAL_INVALID_CMD_TYPE);
+        
+        /* ...retrieve parameter from buffer (care about alignment? - tbd) */
+        XA_API(base, XA_API_CMD_GET_CONFIG_PARAM, id, cmd->data);
+
+        /* ...pad remaininig bytes with zeroes */
+        (pad ? memset(cmd->data + len, 0, 4 - pad) : 0);
+
+        TRACE(SETUP, _b("get-ext-param[%p]: [%u]:%u - [%02X:%02X:%02X:%02X:...]"), base, id, size, cmd->data[0], cmd->data[1], cmd->data[2], cmd->data[3]);
+        
+        /* ...move to next item (alignment issues? - tbd) */
+        cmd = (xf_ext_param_msg_t *)(&cmd->data[0] + size), remaining -= size;
+    }
+    
+    /* ...check the message is fully processed */
+    XF_CHK_ERR(remaining == 0, XA_API_FATAL_INVALID_CMD_TYPE);
+
+    /* ...complete message processing; output buffer has the same length */
+    xf_response_data(m, length);
+
+    return XA_NO_ERROR;
+}
+
+/*******************************************************************************
+ * Command/data processing functions
+ ******************************************************************************/
+
+/* ...generic codec data processing */
+static XA_ERRORCODE xa_base_process(XACodecBase *base)
+{
+    XA_ERRORCODE    error;
+    WORD32          done;
+
+    /* ...clear internal scheduling flag */
+    base->state &= ~XA_BASE_FLAG_SCHEDULE;
+        
+    /* ...codec-specific preprocessing (buffer maintenance) */
+    if ((error = CODEC_API(base, preprocess)) != XA_NO_ERROR)
+    {
+        /* ...return non-fatal codec error */
+        return error;
+    }
+
+    /* ...execution step */
+    if (base->state & XA_BASE_FLAG_RUNTIME_INIT)
+    {
+        /* ...kick initialization process */
+        XA_API(base, XA_API_CMD_INIT, XA_CMD_TYPE_INIT_PROCESS, NULL);
+
+        /* ...check if initialization is completed */
+        XA_API(base, XA_API_CMD_INIT, XA_CMD_TYPE_INIT_DONE_QUERY, &done);
+
+        TRACE(EXEC, _b("Initialization result: %d"), done);
+
+        /* ...switch to execution state if required */
+        (done ? base->state ^= XA_BASE_FLAG_RUNTIME_INIT | XA_BASE_FLAG_EXECUTION : 0);
+    }
+    else if (base->state & XA_BASE_FLAG_EXECUTION)
+    {
+        TRACE(1, _b("do exec"));
+        
+        /* ...execute decoding process */
+        XA_API(base, XA_API_CMD_EXECUTE, XA_CMD_TYPE_DO_EXECUTE, NULL);
+
+        /* ...check for end-of-stream condition */
+        XA_API(base, XA_API_CMD_EXECUTE, XA_CMD_TYPE_DONE_QUERY, &done);
+
+        TRACE(EXEC, _b("Execution result: %d"), done);
+
+        /* ...mark the output path is done to release all queued buffers */
+        (done ? base->state ^= XA_BASE_FLAG_EXECUTION | XA_BASE_FLAG_COMPLETED : 0);
+    }
+
+    /* ...codec-specific buffer post-processing */
+    return CODEC_API(base, postprocess, done);
+}
+                              
+/* ...message-processing function (component entry point) */
+static int xa_base_command(xf_component_t *component, xf_message_t *m)
+{
+    XACodecBase    *base = (XACodecBase *) component;
+    u32             cmd;
+    
+    /* ...invoke data-processing function if message is null */
+    if (m == NULL)
+    {
+        XF_CHK_ERR(!XA_ERROR_SEVERITY(xa_base_process(base)), -EPIPE);
+        return 0;
+    }
+
+    /* ...process the command */
+    TRACE(EXEC, _b("[%p]:state[%X]:(%X, %d, %p)"), base, base->state, m->opcode, m->length, m->buffer);
+
+    /* ...bail out if this is forced termination command (I do have a map; maybe I'd better have a hook? - tbd) */
+    if ((cmd = XF_OPCODE_TYPE(m->opcode)) == XF_OPCODE_TYPE(XF_UNREGISTER))
+    {
+        TRACE(INIT, _b("force component[%p] termination"), base);
+        return -1;    
+    }
+    
+    /* ...check opcode is valid */
+    XF_CHK_ERR(cmd < base->command_num, -EINVAL);
+
+    /* ...and has a hook */
+    XF_CHK_ERR(base->command[cmd] != NULL, -EINVAL);
+    
+    /* ...pass control to specific command */
+    XF_CHK_ERR(!XA_ERROR_SEVERITY(base->command[cmd](base, m)), -EPIPE);
+
+    /* ...execution completed successfully */
+    return 0;
+}
+
+/*******************************************************************************
+ * Base codec API
+ ******************************************************************************/
+
+/* ...data processing scheduling */
+void xa_base_schedule(XACodecBase *base, u32 dts)
+{
+    if ((base->state & XA_BASE_FLAG_SCHEDULE) == 0)
+    {
+        /* ...schedule component task execution */
+        xf_component_schedule(&base->component, dts);
+
+        /* ...and put scheduling flag */
+        base->state ^= XA_BASE_FLAG_SCHEDULE;
+    }
+    else
+    {
+        TRACE(EXEC, _b("codec[%p] processing pending"), base);
+    }
+}
+
+/* ...cancel data processing */
+void xa_base_cancel(XACodecBase *base)
+{
+    if (base->state & XA_BASE_FLAG_SCHEDULE)
+    {
+        /* ...cancel scheduled codec task */
+        xf_component_cancel(&base->component);
+
+        /* ...and clear scheduling flag */
+        base->state ^= XA_BASE_FLAG_SCHEDULE;
+
+        TRACE(EXEC, _b("codec[%p] processing cancelled"), base);
+    }
+}
+
+/* ...base codec destructor */
+void xa_base_destroy(XACodecBase *base, u32 size, u32 core)
+{
+    /* ...deallocate all resources */
+    xf_mm_free_buffer(&base->persist, core);
+    xf_mm_free_buffer(&base->mem_tabs, core);
+    xf_mm_free_buffer(&base->api, core);
+
+    /* ...destroy codec structure (and task) itself */
+    xf_mem_free(base, size, core, 0);
+
+    TRACE(INIT, _b("codec[%p]:%u destroyed"), base, core);
+}
+
+/* ...generic codec initialization routine */
+XACodecBase * xa_base_factory(u32 core, u32 size, xa_codec_func_t process)
+{
+    XACodecBase    *base;
+
+    /* ...make sure the size is sane */
+    XF_CHK_ERR(size >= sizeof(XACodecBase), NULL);
+    
+    /* ...allocate local memory for codec structure */
+    XF_CHK_ERR(base = xf_mem_alloc(size, 0, core, 0), NULL);
+ 
+    /* ...reset codec memory */
+    memset(base, 0, size);
+
+    /* ...set low-level codec API function */
+    base->process = process;
+
+    /* ...set message processing function */
+    base->component.entry = xa_base_command;
+
+    /* ...do basic initialization */
+    if (xa_base_preinit(base, core) != XA_NO_ERROR)
+    {
+        /* ...initialization failed for some reason; do cleanup */
+        xa_base_destroy(base, size, core);
+
+        return NULL;
+    }   
+
+    /* ...initialization completed successfully */
+    TRACE(INIT, _b("Codec[%p]:%u initialized"), base, core);
+    
+    return base;
+}