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author | Greg Kroah-Hartman <gregkh@suse.de> | 2010-10-29 19:42:18 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-10-29 19:42:18 (GMT) |
commit | 3414df8ca38b203c8a5ad8efc32d4a3836a0596d (patch) | |
tree | 7ba369064353600a5a4b5457e5cf09015ac64fee /drivers/staging/dream/qdsp5/audmgr.c | |
parent | 1e431a9d6478940c0b5fcfa1c17a336fc0683409 (diff) | |
download | linux-fsl-qoriq-3414df8ca38b203c8a5ad8efc32d4a3836a0596d.tar.xz |
Staging: dream: remove dream driver and arch from tree
This code is stalled, with no one working on it anymore, and the main
msm code is now going through the proper channels to get merged
correctly.
So remove it as it contains a number of kernel information leaks and it
is doubtful if it even still builds anymore.
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Bryan Huntsman <bryanh@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/dream/qdsp5/audmgr.c')
-rw-r--r-- | drivers/staging/dream/qdsp5/audmgr.c | 314 |
1 files changed, 0 insertions, 314 deletions
diff --git a/drivers/staging/dream/qdsp5/audmgr.c b/drivers/staging/dream/qdsp5/audmgr.c deleted file mode 100644 index 427ae6c..0000000 --- a/drivers/staging/dream/qdsp5/audmgr.c +++ /dev/null @@ -1,314 +0,0 @@ -/* arch/arm/mach-msm/qdsp5/audmgr.c - * - * interface to "audmgr" service on the baseband cpu - * - * Copyright (C) 2008 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * 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. - * - */ - -#include <linux/module.h> -#include <linux/fs.h> -#include <linux/uaccess.h> -#include <linux/slab.h> -#include <linux/kthread.h> -#include <linux/wait.h> - -#include <asm/atomic.h> -#include <mach/msm_rpcrouter.h> - -#include "audmgr.h" - -#define STATE_CLOSED 0 -#define STATE_DISABLED 1 -#define STATE_ENABLING 2 -#define STATE_ENABLED 3 -#define STATE_DISABLING 4 -#define STATE_ERROR 5 - -static void rpc_ack(struct msm_rpc_endpoint *ept, uint32_t xid) -{ - uint32_t rep[6]; - - rep[0] = cpu_to_be32(xid); - rep[1] = cpu_to_be32(1); - rep[2] = cpu_to_be32(RPCMSG_REPLYSTAT_ACCEPTED); - rep[3] = cpu_to_be32(RPC_ACCEPTSTAT_SUCCESS); - rep[4] = 0; - rep[5] = 0; - - msm_rpc_write(ept, rep, sizeof(rep)); -} - -static void process_audmgr_callback(struct audmgr *am, - struct rpc_audmgr_cb_func_ptr *args, - int len) -{ - if (len < (sizeof(uint32_t) * 3)) - return; - if (be32_to_cpu(args->set_to_one) != 1) - return; - - switch (be32_to_cpu(args->status)) { - case RPC_AUDMGR_STATUS_READY: - if (len < sizeof(uint32_t) * 4) - break; - am->handle = be32_to_cpu(args->u.handle); - pr_info("audmgr: rpc READY handle=0x%08x\n", am->handle); - break; - case RPC_AUDMGR_STATUS_CODEC_CONFIG: { - uint32_t volume; - if (len < sizeof(uint32_t) * 4) - break; - volume = be32_to_cpu(args->u.volume); - pr_info("audmgr: rpc CODEC_CONFIG volume=0x%08x\n", volume); - am->state = STATE_ENABLED; - wake_up(&am->wait); - break; - } - case RPC_AUDMGR_STATUS_PENDING: - pr_err("audmgr: PENDING?\n"); - break; - case RPC_AUDMGR_STATUS_SUSPEND: - pr_err("audmgr: SUSPEND?\n"); - break; - case RPC_AUDMGR_STATUS_FAILURE: - pr_err("audmgr: FAILURE\n"); - break; - case RPC_AUDMGR_STATUS_VOLUME_CHANGE: - pr_err("audmgr: VOLUME_CHANGE?\n"); - break; - case RPC_AUDMGR_STATUS_DISABLED: - pr_err("audmgr: DISABLED\n"); - am->state = STATE_DISABLED; - wake_up(&am->wait); - break; - case RPC_AUDMGR_STATUS_ERROR: - pr_err("audmgr: ERROR?\n"); - am->state = STATE_ERROR; - wake_up(&am->wait); - break; - default: - break; - } -} - -static void process_rpc_request(uint32_t proc, uint32_t xid, - void *data, int len, void *private) -{ - struct audmgr *am = private; - uint32_t *x = data; - - if (0) { - int n = len / 4; - pr_info("rpc_call proc %d:", proc); - while (n--) - printk(" %08x", be32_to_cpu(*x++)); - printk("\n"); - } - - if (proc == AUDMGR_CB_FUNC_PTR) - process_audmgr_callback(am, data, len); - else - pr_err("audmgr: unknown rpc proc %d\n", proc); - rpc_ack(am->ept, xid); -} - -#define RPC_TYPE_REQUEST 0 -#define RPC_TYPE_REPLY 1 - -#define RPC_VERSION 2 - -#define RPC_COMMON_HDR_SZ (sizeof(uint32_t) * 2) -#define RPC_REQUEST_HDR_SZ (sizeof(struct rpc_request_hdr)) -#define RPC_REPLY_HDR_SZ (sizeof(uint32_t) * 3) -#define RPC_REPLY_SZ (sizeof(uint32_t) * 6) - -static int audmgr_rpc_thread(void *data) -{ - struct audmgr *am = data; - struct rpc_request_hdr *hdr = NULL; - uint32_t type; - int len; - - pr_info("audmgr_rpc_thread() start\n"); - - while (!kthread_should_stop()) { - if (hdr) { - kfree(hdr); - hdr = NULL; - } - len = msm_rpc_read(am->ept, (void **) &hdr, -1, -1); - if (len < 0) { - pr_err("audmgr: rpc read failed (%d)\n", len); - break; - } - if (len < RPC_COMMON_HDR_SZ) - continue; - - type = be32_to_cpu(hdr->type); - if (type == RPC_TYPE_REPLY) { - struct rpc_reply_hdr *rep = (void *) hdr; - uint32_t status; - if (len < RPC_REPLY_HDR_SZ) - continue; - status = be32_to_cpu(rep->reply_stat); - if (status == RPCMSG_REPLYSTAT_ACCEPTED) { - status = be32_to_cpu(rep->data.acc_hdr.accept_stat); - pr_info("audmgr: rpc_reply status %d\n", status); - } else { - pr_info("audmgr: rpc_reply denied!\n"); - } - /* process reply */ - continue; - } - - if (len < RPC_REQUEST_HDR_SZ) - continue; - - process_rpc_request(be32_to_cpu(hdr->procedure), - be32_to_cpu(hdr->xid), - (void *) (hdr + 1), - len - sizeof(*hdr), - data); - } - pr_info("audmgr_rpc_thread() exit\n"); - if (hdr) { - kfree(hdr); - hdr = NULL; - } - am->task = NULL; - wake_up(&am->wait); - return 0; -} - -struct audmgr_enable_msg { - struct rpc_request_hdr hdr; - struct rpc_audmgr_enable_client_args args; -}; - -struct audmgr_disable_msg { - struct rpc_request_hdr hdr; - uint32_t handle; -}; - -int audmgr_open(struct audmgr *am) -{ - int rc; - - if (am->state != STATE_CLOSED) - return 0; - - am->ept = msm_rpc_connect(AUDMGR_PROG, - AUDMGR_VERS, - MSM_RPC_UNINTERRUPTIBLE); - - init_waitqueue_head(&am->wait); - - if (IS_ERR(am->ept)) { - rc = PTR_ERR(am->ept); - am->ept = NULL; - pr_err("audmgr: failed to connect to audmgr svc\n"); - return rc; - } - - am->task = kthread_run(audmgr_rpc_thread, am, "audmgr_rpc"); - if (IS_ERR(am->task)) { - rc = PTR_ERR(am->task); - am->task = NULL; - msm_rpc_close(am->ept); - am->ept = NULL; - return rc; - } - - am->state = STATE_DISABLED; - return 0; -} -EXPORT_SYMBOL(audmgr_open); - -int audmgr_close(struct audmgr *am) -{ - return -EBUSY; -} -EXPORT_SYMBOL(audmgr_close); - -int audmgr_enable(struct audmgr *am, struct audmgr_config *cfg) -{ - struct audmgr_enable_msg msg; - int rc; - - if (am->state == STATE_ENABLED) - return 0; - - if (am->state == STATE_DISABLING) - pr_err("audmgr: state is DISABLING in enable?\n"); - am->state = STATE_ENABLING; - - msg.args.set_to_one = cpu_to_be32(1); - msg.args.tx_sample_rate = cpu_to_be32(cfg->tx_rate); - msg.args.rx_sample_rate = cpu_to_be32(cfg->rx_rate); - msg.args.def_method = cpu_to_be32(cfg->def_method); - msg.args.codec_type = cpu_to_be32(cfg->codec); - msg.args.snd_method = cpu_to_be32(cfg->snd_method); - msg.args.cb_func = cpu_to_be32(0x11111111); - msg.args.client_data = cpu_to_be32(0x11223344); - - msm_rpc_setup_req(&msg.hdr, AUDMGR_PROG, msm_rpc_get_vers(am->ept), - AUDMGR_ENABLE_CLIENT); - - rc = msm_rpc_write(am->ept, &msg, sizeof(msg)); - if (rc < 0) - return rc; - - rc = wait_event_timeout(am->wait, am->state != STATE_ENABLING, 15 * HZ); - if (rc == 0) { - pr_err("audmgr_enable: ARM9 did not reply to RPC am->state = %d\n", am->state); - BUG(); - } - if (am->state == STATE_ENABLED) - return 0; - - pr_err("audmgr: unexpected state %d while enabling?!\n", am->state); - return -ENODEV; -} -EXPORT_SYMBOL(audmgr_enable); - -int audmgr_disable(struct audmgr *am) -{ - struct audmgr_disable_msg msg; - int rc; - - if (am->state == STATE_DISABLED) - return 0; - - msm_rpc_setup_req(&msg.hdr, AUDMGR_PROG, msm_rpc_get_vers(am->ept), - AUDMGR_DISABLE_CLIENT); - msg.handle = cpu_to_be32(am->handle); - - am->state = STATE_DISABLING; - - rc = msm_rpc_write(am->ept, &msg, sizeof(msg)); - if (rc < 0) - return rc; - - rc = wait_event_timeout(am->wait, am->state != STATE_DISABLING, 15 * HZ); - if (rc == 0) { - pr_err("audmgr_disable: ARM9 did not reply to RPC am->state = %d\n", am->state); - BUG(); - } - - if (am->state == STATE_DISABLED) - return 0; - - pr_err("audmgr: unexpected state %d while disabling?!\n", am->state); - return -ENODEV; -} -EXPORT_SYMBOL(audmgr_disable); |