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From 4f7fcea7402d7d788fe959bc9b7ced86af72d806 Mon Sep 17 00:00:00 2001
From: R, Dharageswari <dharageswari.r@intel.com>
Date: Thu, 29 Apr 2010 20:20:22 +0530
Subject: [PATCH] ADR-Post-Beta-0.05.002.03-2/8-Adding Moorestown Audio Drivers: SST header files
This patch adds the common header files.
intel_sst_common.h - This header files is private to SST driver and contain the
common structures like SST ops, SST register offsets, debugging macro,
sst stream definitions, and Shim register definitions.
intel_sst_pvt.c - Utility functions used by SST driver and function
prototypes of common functions are implemented in this file
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
new file: sound/pci/sst/intel_sst_common.h
new file: sound/pci/sst/intel_sst_pvt.c
Patch-mainline: 2.6.35?
---
sound/pci/sst/intel_sst_common.h | 538 ++++++++++++++++++++++++++++++++++++++
sound/pci/sst/intel_sst_pvt.c | 323 +++++++++++++++++++++++
2 files changed, 861 insertions(+), 0 deletions(-)
create mode 100644 sound/pci/sst/intel_sst_common.h
create mode 100644 sound/pci/sst/intel_sst_pvt.c
diff --git a/sound/pci/sst/intel_sst_common.h b/sound/pci/sst/intel_sst_common.h
new file mode 100644
index 0000000..d9a720d
--- /dev/null
+++ b/sound/pci/sst/intel_sst_common.h
@@ -0,0 +1,538 @@
+#ifndef __INTEL_SST_COMMON_H__
+#define __INTEL_SST_COMMON_H__
+/*
+ * intel_sst_common.h - Intel SST Driver for audio engine
+ *
+ * Copyright (C) 2008-10 Intel Corporation
+ * Authors: Vinod Koul <vinod.koul@intel.com>
+ * Harsha Priya <priya.harsha@intel.com>
+ * Dharageswari R <dharageswari.r@intel.com>
+ * KP Jeeja <jeeja.kp@intel.com>
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * Common private declarations for SST
+ */
+#include <linux/time.h>
+#ifdef CONFIG_MSTWN_POWER_MGMT
+#include <linux/intel_mid.h>
+#endif
+/* #define SND_LOOP_TEST */
+
+#define SST_DRIVER_VERSION "0.05.002.03"
+#define SST_VERSION_NUM 0x050203
+
+/* driver names */
+#define SST_DRV_NAME "intel_sst_driver"
+#define SST_FW_STD_FILENAME "fw_sst.bin"
+
+
+enum sst_states {
+ SST_FW_LOADED = 1,
+ SST_FW_RUNNING,
+ SST_UN_INIT,
+ SST_ERROR,
+};
+
+#define MAX_ACTIVE_STREAM 3
+#define MAX_ENC_STREAM 1
+#define MAX_AM_HANDLES 1
+#define ALLOC_TIMEOUT 5000
+/* SST numbers */
+#define SST_BLOCK_TIMEOUT 5000
+#define TARGET_DEV_BLOCK_TIMEOUT 5000
+
+/* FIXME */
+#define INTEL_SST_MAJOR 255
+#define BLOCK_UNINIT -1
+#define RX_TIMESLOT_UNINIT -1
+/* Chip revision ID */
+
+/*
+#define CHIP_A1_50 0x01
+#define CHIP_A2_50 0x02
+#define CHIP_A2_100 0x03
+*/
+
+/*
+#define DSP_CLOCK_SPEED 100 */ /* 50: 50MHz, 100: 100MHz */
+
+/* SST register map */
+#define SST_CSR 0x00
+#define SST_PISR 0x08
+#define SST_PIMR 0x10
+#define SST_ISRX 0x18
+#define SST_IMRX 0x28
+#define SST_IPCX 0x38 /* IPC IA-SST */
+#define SST_IPCD 0x40 /* IPC SST-IA */
+#define SST_ISRD 0x20 /* dummy register for shim workaround */
+#define SST_SHIM_SIZE 0X44
+
+#define SPI_MODE_ENABLE_BASE_ADDR 0xffae4000
+#define FW_SIGNATURE_SIZE 4
+
+/* PMIC and SST hardware states */
+enum sst_mad_states {
+ SND_MAD_UN_INIT = 0,
+ SND_MAD_INIT_DONE,
+};
+
+/* stream states */
+enum sst_stream_states {
+ STREAM_UN_INIT = 0, /* Freed/Not used stream */
+ STREAM_RUNNING = 1, /* Running */
+ STREAM_PAUSED = 2, /* Paused stream */
+ STREAM_DECODE = 4, /* stream is in decoding only state */
+ STREAM_INIT = 5, /* stream init, waiting for data */
+};
+
+
+enum sst_ram_type{
+ SST_IRAM = 1,
+ SST_DRAM = 2,
+};
+/* SST shim registers to structure mapping */
+union config_status_reg {
+ struct {
+ u32 rsvd0:1;
+ u32 sst_reset:1;
+ u32 hw_rsvd:3;
+ u32 sst_clk:2;
+ u32 bypass:3;
+ u32 run_stall:1;
+ u32 rsvd1:2;
+ u32 strb_cntr_rst:1;
+ u32 rsvd:18;
+ } part;
+ u32 full;
+};
+
+union interrupt_reg {
+ struct {
+ u32 done_interrupt:1;
+ u32 busy_interrupt:1;
+ u32 rsvd:30;
+ } part;
+ u32 full;
+};
+
+union sst_pisr_reg {
+ struct {
+ u32 pssp0:1;
+ u32 pssp1:1;
+ u32 rsvd0:3;
+ u32 dmac:1;
+ u32 rsvd1:26;
+ } part;
+ u32 full;
+};
+
+union sst_pimr_reg {
+ struct {
+ u32 ssp0:1;
+ u32 ssp1:1;
+ u32 rsvd0:3;
+ u32 dmac:1;
+ u32 rsvd1:10;
+ u32 ssp0_sc:1;
+ u32 ssp1_sc:1;
+ u32 rsvd2:3;
+ u32 dmac_sc:1;
+ u32 rsvd3:10;
+ } part;
+ u32 full;
+};
+
+
+struct sst_stream_bufs {
+ struct list_head node;
+ u32 size;
+ const char *addr;
+ u32 data_copied;
+ bool in_use;
+ u32 offset;
+};
+
+struct snd_sst_user_cap_list {
+ unsigned int iov_index; /* index of iov */
+ unsigned long iov_offset; /* offset in iov */
+ unsigned long offset; /* offset in kmem */
+ unsigned long size; /* size copied */
+ struct list_head node;
+};
+/*
+This structure is used to block a user/fw data call to another
+fw/user call
+*/
+struct sst_block {
+ bool condition; /* condition for blocking check */
+ int ret_code; /* ret code when block is released */
+ void *data; /* data to be appsed for block if any */
+ bool on;
+};
+
+enum snd_sst_buf_type {
+ SST_BUF_USER_STATIC = 1,
+ SST_BUF_USER_DYNAMIC,
+ SST_BUF_MMAP_STATIC,
+ SST_BUF_MMAP_DYNAMIC,
+};
+enum snd_src {
+ SST_DRV = 1,
+ MAD_DRV = 2
+};
+/*
+structure that holds the stream information
+*/
+struct stream_info {
+ unsigned int status;
+ unsigned int prev;
+ u8 codec;
+ unsigned int sst_id;
+ unsigned int ops;
+ struct list_head bufs;
+ struct mutex lock; /* mutex */
+ spinlock_t pcm_lock;
+ bool mmapped;
+ unsigned int sg_index; /* current buf Index */
+ unsigned char *cur_ptr; /* Current static bufs */
+ struct snd_sst_buf_entry *buf_entry;
+ struct sst_block data_blk; /* stream ops block */
+ struct sst_block ctrl_blk; /* stream control cmd block */
+ enum snd_sst_buf_type buf_type;
+ void *pcm_substream;
+ void (*period_elapsed) (void *pcm_substream);
+ unsigned int sfreq;
+ void *decode_ibuf, *decode_obuf;
+ unsigned int decode_isize, decode_osize;
+ u8 decode_ibuf_type, decode_obuf_type;
+ unsigned int idecode_alloc;
+ unsigned int need_draining;
+ unsigned int str_type;
+ u32 curr_bytes;
+ u32 cumm_bytes;
+ u32 src; /* hack to remove */
+};
+
+
+
+/*
+this structure is used for blocking the user's alloc calls to
+fw's response to alloc calls
+*/
+struct stream_alloc_block {
+ int sst_id; /* session id of blocked stream */
+ struct sst_block ops_block; /* ops block struture */
+};
+
+#define SST_FW_SIGN "$SST"
+#define SST_FW_LIB_SIGN "$LIB"
+
+/* FW file headers */
+struct fw_header {
+ unsigned char signature[FW_SIGNATURE_SIZE]; /* FW signature */
+ u32 file_size; /* size of fw minus this header */
+ u32 modules; /* # of modules */
+ u32 file_format; /* version of header format */
+ u32 reserved[4];
+};
+
+struct fw_module_header {
+ unsigned char signature[FW_SIGNATURE_SIZE]; /* module signature */
+ u32 mod_size; /* size of module */
+ u32 blocks; /* # of blocks */
+ u32 type; /* codec type, pp lib */
+ u32 entry_point;
+};
+
+struct dma_block_info {
+ enum sst_ram_type type; /* IRAM/DRAM */
+ u32 size; /* Bytes */
+ u32 ram_offset; /* Offset in I/DRAM */
+ u32 rsvd; /* Reserved field */
+};
+
+struct ioctl_pvt_data {
+ int str_id;
+ int pvt_id;
+};
+
+struct sst_ipc_msg_wq {
+ union ipc_header header;
+ char mailbox[SST_MAILBOX_SIZE];
+ struct work_struct wq;
+};
+
+struct mad_ops_wq {
+ int stream_id;
+ enum sst_controls control_op;
+ struct work_struct wq;
+
+};
+
+#define SST_MMAP_PAGES (640*1024 / PAGE_SIZE)
+#define SST_MMAP_STEP (40*1024 / PAGE_SIZE)
+
+/* driver ops */
+struct intel_sst_drv {
+ bool pmic_state;
+ int pmic_vendor;
+ int sst_state;
+/* int chip_rev_id; */
+ void __iomem *shim;
+ void __iomem *mailbox;
+ void __iomem *iram;
+ void __iomem *dram;
+ unsigned int shim_phy_add;
+ struct list_head ipc_dispatch_list;
+ struct work_struct ipc_post_msg_wq;
+ struct sst_ipc_msg_wq ipc_process_msg;
+ struct sst_ipc_msg_wq ipc_process_reply;
+ struct sst_ipc_msg_wq ipc_post_msg;
+ struct mad_ops_wq mad_ops;
+ wait_queue_head_t wait_queue;
+ struct workqueue_struct *mad_wq;
+ struct workqueue_struct *post_msg_wq;
+ struct workqueue_struct *process_msg_wq;
+ struct workqueue_struct *process_reply_wq;
+
+ struct stream_info streams[MAX_NUM_STREAMS];
+ struct stream_alloc_block alloc_block[MAX_ACTIVE_STREAM];
+ struct sst_block tgt_dev_blk, fw_info_blk,
+ vol_info_blk, mute_info_blk, hs_info_blk;
+ struct mutex list_lock;/* mutex for IPC list locking */
+ struct snd_pmic_ops *scard_ops;
+ struct pci_dev *pci;
+ int active_streams[MAX_NUM_STREAMS];
+ void *mmap_mem;
+ struct mutex stream_cnt_lock;
+ unsigned int mmap_len;
+ unsigned int unique_id;
+ unsigned int stream_cnt; /* total streams */
+ unsigned int encoded_cnt; /* enocded streams only */
+ unsigned int am_cnt;
+ unsigned int pb_streams; /* pb streams active */
+ unsigned int cp_streams; /* cp streams active */
+ unsigned int lpe_stalled; /* LPE is stalled or not */
+ unsigned int pmic_port_instance; /*pmic port instance enabled*/
+ int rx_time_slot_status;
+ unsigned int lpaudio_start; /* 1 - LPA stream(MP3 pb) in progress*/
+ unsigned int audio_start; /* 1 - LPA stream(Non-MP3 pb) in progress*/
+};
+
+extern struct intel_sst_drv *sst_drv_ctx;
+
+/* register definitions */
+/*SCU FW Changes*/
+/*#define AUD_CLK_ADDR 0xff11d83c
+#define AUD_CLK_DISABLE 0x80008008
+#define AUD_CLK_50MHZ 0x80008301
+#define AUD_CLK_RATIO_1_2 0x80000301
+#define AUD_CLK_RATIO_8008 0x80008008
+#define AUD_CLK_RATIO_8101 0x80008101
+#define AUD_CLK_RATIO_0101 0x80000101
+#define AUD_SYS_ADDR 0xff11d118
+#define AUD_SYS_RESET 0x7ffffcff
+#define AUD_SYS_SET 0x7fffffff
+#define AUD_SHIM_BASE_ADDR 0xffae8000 */
+/*
+#define AUD_SHIM_RATIO_1_1 0x382
+#define AUD_SHIM_RATIO 0x3a2
+*/
+/*SCU FW Changes*/
+/*#define AUD_CLK_200 0xff11d200
+#define AUD_CLK_204 0xff11d204
+#define AUD_INIT_VAL 0x0*/
+#define CHIP_REV_REG 0xff108000
+#define CHIP_REV_ADDR 0x78
+/*
+#define CHIP_REV_A1 0x0
+#define CHIP_REV_A2 0x3
+#define CLK_50MHZ 50
+#define CLK_100MHZ 100
+*/
+/* misc definitions */
+#define FW_DWNL_ID 0xFF
+#define LOOP1 0x11111111
+#define LOOP2 0x22222222
+#define LOOP3 0x33333333
+#define LOOP4 0x44444444
+
+#define SST_DEFAULT_PMIC_PORT 1 /*audio port*/
+/* NOTE: status will +ve for good cases and -ve for error ones */
+#define MAX_STREAM_FIELD 255
+
+int sst_alloc_stream(char *params, unsigned int stream_ops, u8 codec,
+ unsigned int session_id);
+int sst_alloc_stream_response(unsigned int str_id,
+ struct snd_sst_str_type *type);
+int sst_stalled(void);
+int sst_pause_stream(int id);
+int sst_resume_stream(int id);
+int sst_enable_rx_timeslot(int status);
+int sst_drop_stream(int id);
+int sst_free_stream(int id);
+int sst_play_frame(int streamID);
+int sst_capture_frame(int streamID);
+int sst_set_stream_param(int streamID, struct snd_sst_params *str_param);
+int sst_target_device_select(struct snd_sst_target_device *target_device);
+int sst_decode(int str_id, struct snd_sst_dbufs *dbufs);
+int sst_get_decoded_bytes(int str_id, unsigned long long *bytes);
+int sst_get_fw_info(struct snd_sst_fw_info *info);
+int sst_get_stream_params(int str_id,
+ struct snd_sst_get_stream_params *get_params);
+int sst_drain_stream(int str_id);
+int sst_get_vol(struct snd_sst_vol *set_vol);
+int sst_set_vol(struct snd_sst_vol *set_vol);
+int sst_set_mute(struct snd_sst_mute *set_mute);
+
+
+void sst_post_message(struct work_struct *work);
+void sst_process_message(struct work_struct *work);
+void sst_process_reply(struct work_struct *work);
+void sst_process_mad_ops(struct work_struct *work);
+void sst_process_mad_jack_detection(struct work_struct *work);
+
+int intel_sst_ioctl(struct inode *i_node, struct file *file_ptr,
+ unsigned int cmd, unsigned long arg);
+int intel_sst_open(struct inode *i_node, struct file *file_ptr);
+int intel_sst_release(struct inode *i_node, struct file *file_ptr);
+int intel_sst_read(struct file *file_ptr, char __user *buf,
+ size_t count, loff_t *ppos);
+int intel_sst_write(struct file *file_ptr, const char __user *buf,
+ size_t count, loff_t *ppos);
+int intel_sst_mmap(struct file *fp, struct vm_area_struct *vma);
+ssize_t intel_sst_aio_write(struct kiocb *kiocb, const struct iovec *iov,
+ unsigned long nr_segs, loff_t offset);
+ssize_t intel_sst_aio_read(struct kiocb *kiocb, const struct iovec *iov,
+ unsigned long nr_segs, loff_t offset);
+
+int sst_load_fw(const struct firmware *fw, void *context);
+int sst_load_library(struct snd_sst_lib_download *lib, u8 ops, u32 pvt_id);
+int sst_spi_mode_enable(void);
+int sst_get_block_stream(struct intel_sst_drv *sst_drv_ctx);
+
+void sst_print_hex(unsigned char *buf, unsigned int size);
+int sst_wait_interruptible(struct intel_sst_drv *sst_drv_ctx,
+ struct sst_block *block);
+int sst_wait_interruptible_timeout(struct intel_sst_drv *sst_drv_ctx,
+ struct sst_block *block, int timeout);
+int sst_wait_timeout(struct intel_sst_drv *sst_drv_ctx,
+ struct stream_alloc_block *block);
+int sst_create_large_msg(struct ipc_post **arg);
+int sst_create_short_msg(struct ipc_post **arg);
+void sst_print_params(struct snd_sst_params *str_params);
+void sst_wake_up_alloc_block(struct intel_sst_drv *sst_drv_ctx,
+ u8 sst_id, int status, void *data);
+void sst_clear_interrupt(void);
+
+/**
+* this function is an inline function that sets the headers before
+* sending a message
+*/
+static inline void sst_fill_header(union ipc_header *header,
+ int msg, int large, int strID)
+{
+ header->part.msg_id = msg;
+ header->part.str_id = strID;
+ header->part.large = large;
+ header->part.done = 0;
+ header->part.busy = 1;
+ header->part.data = 0;
+}
+
+/**
+* this inline function assigns a private id for calls that dont have stream
+* context yet
+*/
+static inline unsigned int sst_assign_pvt_id(struct intel_sst_drv *sst_drv_ctx)
+{
+ sst_drv_ctx->unique_id++;
+ if (sst_drv_ctx->unique_id >= MAX_NUM_STREAMS)
+ sst_drv_ctx->unique_id = 1;
+ return sst_drv_ctx->unique_id;
+}
+
+/**
+* this function initialzes stream context
+*/
+static inline void sst_init_stream(struct stream_info *stream,
+ int codec, int str_type, int sst_id, int ops)
+{
+ stream->status = STREAM_INIT;
+ stream->prev = STREAM_UN_INIT;
+ stream->codec = codec;
+ stream->sst_id = sst_id;
+ stream->str_type = str_type;
+ stream->ops = ops;
+ stream->data_blk.on = false;
+ stream->data_blk.condition = false;
+ stream->data_blk.ret_code = 0;
+ stream->data_blk.data = NULL;
+ stream->ctrl_blk.on = false;
+ stream->ctrl_blk.condition = false;
+ stream->ctrl_blk.ret_code = 0;
+ stream->ctrl_blk.data = NULL;
+ stream->need_draining = false;
+ stream->decode_ibuf = NULL;
+ stream->decode_isize = 0;
+ stream->mmapped = false;
+}
+
+/**
+* this function resets the stream contexts
+*/
+static inline void sst_clean_stream(struct stream_info *stream)
+{
+ struct sst_stream_bufs *bufs = NULL, *_bufs;
+ stream->status = STREAM_UN_INIT;
+ stream->prev = STREAM_UN_INIT;
+ mutex_lock(&stream->lock);
+ list_for_each_entry_safe(bufs, _bufs, &stream->bufs, node) {
+ list_del(&bufs->node);
+ kfree(bufs);
+ }
+ mutex_unlock(&stream->lock);
+
+ if (stream->ops != STREAM_OPS_PLAYBACK_DRM)
+ kfree(stream->decode_ibuf);
+}
+
+/**
+* this function generates events for OSPM
+*/
+static inline int sst_ospm_send_event(int event)
+{
+#ifdef CONFIG_MSTWN_POWER_MGMT
+ return ospm_generate_netlink_event(AUDIO_SUBSYTEM_ID, event);
+#else
+ return 0;
+#endif
+}
+
+/**
+* this function validates the stream id
+*/
+static inline int sst_validate_strid(int str_id)
+{
+ if (str_id <= 0 || str_id >= MAX_NUM_STREAMS)
+ return -EINVAL;
+ else
+ return 0;
+}
+
+#endif /* __INTEL_SST_COMMON_H__ */
diff --git a/sound/pci/sst/intel_sst_pvt.c b/sound/pci/sst/intel_sst_pvt.c
new file mode 100644
index 0000000..95d79be
--- /dev/null
+++ b/sound/pci/sst/intel_sst_pvt.c
@@ -0,0 +1,323 @@
+/*
+ * intel_sst_pvt.c - Intel SST Driver for audio engine
+ *
+ * Copyright (C) 2008-10 Intel Corp
+ * Authors: Vinod Koul <vinod.koul@intel.com>
+ * Harsha Priya <priya.harsha@intel.com>
+ * Dharageswari R <dharageswari.r@intel.com>
+ * KP Jeeja <jeeja.kp@intel.com>
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * This driver exposes the audio engine functionalities to the ALSA
+ * and middleware.
+ *
+ * This file contains all private functions
+ */
+
+#include <linux/cdev.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/syscalls.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/workqueue.h>
+#include <linux/firmware.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <sound/intel_lpe.h>
+#include <sound/intel_sst_ioctl.h>
+#include "intel_sst_fw_ipc.h"
+#include "intel_sst_common.h"
+
+/**
+* this function assigns a block for the calls that dont have stream context yet
+* the blocks are used for waiting on Firmware's response for any operation
+*/
+int sst_get_block_stream(struct intel_sst_drv *sst_drv_ctx)
+{
+ int i;
+
+ for (i = 0; i < MAX_ACTIVE_STREAM; i++) {
+ if (sst_drv_ctx->alloc_block[i].sst_id == BLOCK_UNINIT) {
+ sst_drv_ctx->alloc_block[i].ops_block.condition = false;
+ sst_drv_ctx->alloc_block[i].ops_block.ret_code = 0;
+ sst_drv_ctx->alloc_block[i].sst_id = 0;
+ break;
+ }
+ }
+ if (i == MAX_ACTIVE_STREAM) {
+ printk(KERN_ERR
+ "SST ERR: max alloc_stream reached");
+ i = -EBUSY; /* active stream limit reached */
+ }
+ return i;
+}
+
+/**
+* this function is a debug function that is used to print contents of a buffer
+*/
+void sst_print_hex(unsigned char *buf, unsigned int size)
+{
+ unsigned int i;
+
+ for (i = 0; i < size; i++) {
+ printk(KERN_DEBUG "SST DBG:%02x ", buf[i]);
+ if ((i != 0) && ((i % 8) == 0))
+ printk(KERN_DEBUG "SST DBG:\n");
+ }
+}
+/**
+* this function waits without a timeout (and is interruptable) for a
+* given block event
+*/
+int sst_wait_interruptible(struct intel_sst_drv *sst_drv_ctx,
+ struct sst_block *block)
+{
+ int retval = 0;
+
+ if (!wait_event_interruptible(sst_drv_ctx->wait_queue,
+ block->condition)) {
+ /* event wake */
+ if (block->ret_code < 0) {
+ printk(KERN_ERR
+ "SST ERR: stream failed %d\n"\
+ , block->ret_code);
+ retval = -EBUSY;
+ } else {
+ printk(KERN_DEBUG "SST DBG:event up\n");
+ retval = 0;
+ }
+ } else {
+ printk(KERN_ERR
+ "SST ERR: signal interrupted\n");
+ retval = -EINTR;
+ }
+ return retval;
+
+}
+
+/**
+* this function waits with a timeout value (and is interruptle) on a
+* given block event
+*/
+int sst_wait_interruptible_timeout(
+ struct intel_sst_drv *sst_drv_ctx,
+ struct sst_block *block, int timeout)
+{
+ int retval = 0;
+
+ printk(KERN_DEBUG "SST DBG:waiting....\n");
+ if (wait_event_interruptible_timeout(sst_drv_ctx->wait_queue,
+ block->condition,
+ msecs_to_jiffies(timeout))) {
+ if (block->ret_code < 0) {
+ printk(KERN_ERR
+ "SST ERR: stream failed %d\n"\
+ , block->ret_code);
+ } else
+ printk(KERN_DEBUG "SST DBG:event up\n");
+ retval = block->ret_code;
+ } else {
+ block->on = false;
+ printk(KERN_ERR
+ "SST ERR: timeout occured...\n");
+ /* settign firmware state as uninit so that the
+ firmware will get redownloaded on next request
+ this is because firmare not responding for 5 sec
+ is equalant to some unrecoverable error of FW
+ sst_drv_ctx->sst_state = SST_UN_INIT;*/
+ retval = -EBUSY;
+ }
+ return retval;
+
+}
+
+/**
+* this function waits with on a given block event
+*/
+int sst_wait_timeout(struct intel_sst_drv *sst_drv_ctx,
+ struct stream_alloc_block *block)
+{
+ int retval = 0;
+
+ /* NOTE:
+ Observed that FW processes the alloc msg and replies even
+ before the alloc thread has finished execution */
+ printk(KERN_DEBUG "SST DBG:waiting for %x, +\
+ condition %x \n", block->sst_id,
+ block->ops_block.condition);
+ if (wait_event_interruptible_timeout(sst_drv_ctx->wait_queue,
+ block->ops_block.condition,
+ msecs_to_jiffies(SST_BLOCK_TIMEOUT))) {
+ /* event wake */
+ printk(KERN_DEBUG "SST DBG:Event wake +\
+ ... %x \n", block->ops_block.condition);
+ printk(KERN_DEBUG "SST DBG:message +\
+ ret: %d\n", block->ops_block.ret_code);
+ retval = block->ops_block.ret_code;
+ } else {
+ block->ops_block.on = false;
+ printk(KERN_ERR
+ "SST ERR: Wait timed-out %x \n",\
+ block->ops_block.condition);
+ /* settign firmware state as uninit so that the
+ firmware will get redownloaded on next request
+ this is because firmare not responding for 5 sec
+ is equalant to some unrecoverable error of FW
+ sst_drv_ctx->sst_state = SST_UN_INIT;*/
+ retval = -EBUSY;
+ }
+ return retval;
+
+}
+
+/**
+* this function allocats structures to send a large message to the firmware
+*/
+int sst_create_large_msg(struct ipc_post **arg)
+{
+ struct ipc_post *msg;
+
+ msg = kzalloc(sizeof(struct ipc_post), GFP_ATOMIC);
+ if (!msg) {
+ printk(KERN_ERR
+ "SST ERR: kzalloc msg failed \n");
+ return -ENOMEM;
+ }
+
+ msg->mailbox_data = kzalloc(SST_MAILBOX_SIZE, GFP_ATOMIC);
+ if (!msg->mailbox_data) {
+ kfree(msg);
+ printk(KERN_ERR
+ "SST ERR: kzalloc mailbox_data failed");
+ return -ENOMEM;
+ };
+ *arg = msg;
+ return 0;
+}
+
+/**
+* this function allocats structures to send a short message to the firmware
+*/
+int sst_create_short_msg(struct ipc_post **arg)
+{
+ struct ipc_post *msg;
+
+ msg = kzalloc(sizeof(*msg), GFP_ATOMIC);
+ if (!msg) {
+ printk(KERN_ERR
+ "SST ERR: kzalloc msg failed \n");
+ return -ENOMEM;
+ }
+ msg->mailbox_data = NULL;
+ *arg = msg;
+ return 0;
+}
+
+/**
+* this function is a debug funtion to print the stream parameters
+*/
+void sst_print_params(struct snd_sst_params *str_params)
+{
+ switch (str_params->codec) {
+ case SST_CODEC_TYPE_PCM:
+ printk(KERN_DEBUG "SST DBG:pcm \n");
+ printk(KERN_DEBUG "SST DBG:chan=%d, sfreq = %d, wd_sz = %d \
+ brate = %d buffer_size= 0x%d\
+ period_cnt = %d\n",
+ str_params->sparams.uc.pcm_params.num_chan,
+ str_params->sparams.uc.pcm_params.sfreq,
+ str_params->sparams.uc.pcm_params.pcm_wd_sz,
+ str_params->sparams.uc.pcm_params.brate,
+ // str_params->sparams.uc.pcm_params.frame_size,
+ // str_params->sparams.uc.pcm_params.samples_per_frame,
+ str_params->sparams.uc.pcm_params.buffer_size,
+ str_params->sparams.uc.pcm_params.period_count);
+ break;
+
+ case SST_CODEC_TYPE_MP3:
+ printk(KERN_DEBUG "SST DBG:mp3 \n");
+ printk(KERN_DEBUG "SST DBG:chan=%d, brate=%d, sfreq = %d, wd_sz = %d\n",
+ str_params->sparams.uc.mp3_params.num_chan,
+ str_params->sparams.uc.mp3_params.brate,
+ str_params->sparams.uc.mp3_params.sfreq,
+ str_params->sparams.uc.mp3_params.pcm_wd_sz);
+ break;
+
+ case SST_CODEC_TYPE_AAC:
+ printk(KERN_DEBUG "SST DBG:aac \n");
+ printk(KERN_DEBUG "SST DBG:chan=%d, brate=%d, sfreq = %d, wd_sz = %d,asrate=%d\n",
+ str_params->sparams. uc.aac_params.num_chan,
+ str_params->sparams.uc.aac_params.brate,
+ str_params->sparams.uc.aac_params.sfreq,
+ str_params->sparams.uc.aac_params.pcm_wd_sz,
+ str_params->sparams.uc.aac_params.aac_srate);
+ printk(KERN_DEBUG "SST DBG:mpgid=%d profile=%d, aot = %d\n",
+ str_params->sparams.uc.aac_params.mpg_id,
+ str_params->sparams.uc.aac_params.aac_profile,
+ str_params->sparams.uc.aac_params.aot);
+ break;
+ case SST_CODEC_TYPE_WMA9:
+ printk(KERN_DEBUG "SST DBG:wma type \n");
+ printk(KERN_DEBUG "SST DBG:chan=%d, brate=%d, sfreq = %d, wd_sz = %d, tag=%d\n",
+ str_params->sparams. uc.wma_params.num_chan,
+ str_params->sparams.uc.wma_params.brate,
+ str_params->sparams.uc.wma_params.sfreq,
+ str_params->sparams.uc.wma_params.pcm_wd_sz,
+ str_params->sparams.uc.wma_params.format_tag);
+ printk(KERN_DEBUG "SST DBG:mask=%d, +\
+ b align=%d, enc opt =%d, op align =%d\n",
+ str_params->sparams.uc.wma_params.channel_mask,
+ str_params->sparams.uc.wma_params.block_align,
+ str_params->sparams.uc.wma_params.wma_encode_opt,
+ str_params->sparams.uc.wma_params.op_align);
+ break;
+ default:
+ printk(KERN_DEBUG "SST DBG:other +\
+ codec 0x%x\n", str_params->codec);
+ }
+}
+
+/**
+* this function wakes up a sleeping block event based on the response
+*/
+void sst_wake_up_alloc_block(struct intel_sst_drv *sst_drv_ctx,
+ u8 sst_id, int status, void *data)
+{
+ int i;
+
+ /* Unblock with retval code */
+ for (i = 0; i < MAX_ACTIVE_STREAM; i++) {
+ if (sst_id == sst_drv_ctx->alloc_block[i].sst_id) {
+ sst_drv_ctx->alloc_block[i].ops_block.condition = true;
+ sst_drv_ctx->alloc_block[i].ops_block.ret_code = status;
+ sst_drv_ctx->alloc_block[i].ops_block.data = data;
+ printk(KERN_DEBUG "SST DBG:wake id %d, +\
+ sst_id %d condition %x\n", i,
+ sst_drv_ctx->alloc_block[i].sst_id,
+ sst_drv_ctx->alloc_block[i].ops_block.condition);
+ wake_up(&sst_drv_ctx->wait_queue);
+ break;
+ }
+ }
+}
--
1.6.2.2
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