2 * intelmid_pvt.h - Intel Sound card driver for MID
4 * Copyright (C) 2008-10 Intel Corp
5 * Authors: Harsha Priya <priya.harsha@intel.com>
6 * Vinod Koul <vinod.koul@intel.com>
7 * KP Jeeja <jeeja.kp@intel.com>
8 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; version 2 of the License.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
23 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
24 * ALSA driver for Intel MID sound card chipset - holding private functions
27 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
30 #include <asm/intel_scu_ipc.h>
31 #include <sound/core.h>
32 #include <sound/control.h>
33 #include <sound/pcm.h>
35 #include "intel_sst.h"
36 #include "intel_sst_ioctl.h"
37 #include "intelmid_snd_control.h"
41 void period_elapsed(void *mad_substream
)
43 struct snd_pcm_substream
*substream
= mad_substream
;
44 struct mad_stream_pvt
*stream
;
48 if (!substream
|| !substream
->runtime
)
50 stream
= substream
->runtime
->private_data
;
54 if (stream
->stream_status
!= RUNNING
)
56 pr_debug("calling period elapsed\n");
57 snd_pcm_period_elapsed(substream
);
62 int snd_intelmad_alloc_stream(struct snd_pcm_substream
*substream
)
64 struct snd_intelmad
*intelmaddata
= snd_pcm_substream_chip(substream
);
65 struct mad_stream_pvt
*stream
= substream
->runtime
->private_data
;
66 struct snd_sst_stream_params param
= {{{0,},},};
67 struct snd_sst_params str_params
= {0};
70 /* set codec params and inform SST driver the same */
72 param
.uc
.pcm_params
.codec
= SST_CODEC_TYPE_PCM
;
73 param
.uc
.pcm_params
.num_chan
= (u8
) substream
->runtime
->channels
;
74 param
.uc
.pcm_params
.pcm_wd_sz
= substream
->runtime
->sample_bits
;
75 param
.uc
.pcm_params
.reserved
= 0;
76 param
.uc
.pcm_params
.sfreq
= substream
->runtime
->rate
;
77 param
.uc
.pcm_params
.ring_buffer_size
=
78 snd_pcm_lib_buffer_bytes(substream
);
79 param
.uc
.pcm_params
.period_count
= substream
->runtime
->period_size
;
80 param
.uc
.pcm_params
.ring_buffer_addr
=
81 virt_to_phys(substream
->runtime
->dma_area
);
82 pr_debug("period_cnt = %d\n", param
.uc
.pcm_params
.period_count
);
83 pr_debug("sfreq= %d, wd_sz = %d\n",
84 param
.uc
.pcm_params
.sfreq
, param
.uc
.pcm_params
.pcm_wd_sz
);
86 str_params
.sparams
= param
;
87 str_params
.codec
= SST_CODEC_TYPE_PCM
;
89 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
) {
90 str_params
.ops
= STREAM_OPS_PLAYBACK
;
91 pr_debug("Playbck stream,Device %d\n", stream
->device
);
93 str_params
.ops
= STREAM_OPS_CAPTURE
;
94 stream
->device
= SND_SST_DEVICE_CAPTURE
;
95 pr_debug("Capture stream,Device %d\n", stream
->device
);
97 str_params
.device_type
= stream
->device
;
98 ret_val
= intelmaddata
->sstdrv_ops
->pcm_control
->open(&str_params
);
99 pr_debug("sst: SST_SND_PLAY/CAPTURE ret_val = %x\n", ret_val
);
103 stream
->stream_info
.str_id
= ret_val
;
104 stream
->stream_status
= INIT
;
105 stream
->stream_info
.buffer_ptr
= 0;
106 pr_debug("str id : %d\n", stream
->stream_info
.str_id
);
111 int snd_intelmad_init_stream(struct snd_pcm_substream
*substream
)
113 struct mad_stream_pvt
*stream
= substream
->runtime
->private_data
;
114 struct snd_intelmad
*intelmaddata
= snd_pcm_substream_chip(substream
);
117 pr_debug("setting buffer ptr param\n");
118 stream
->stream_info
.period_elapsed
= period_elapsed
;
119 stream
->stream_info
.mad_substream
= substream
;
120 stream
->stream_info
.buffer_ptr
= 0;
121 stream
->stream_info
.sfreq
= substream
->runtime
->rate
;
122 ret_val
= intelmaddata
->sstdrv_ops
->pcm_control
->device_control(
123 SST_SND_STREAM_INIT
, &stream
->stream_info
);
125 pr_err("control_set ret error %d\n", ret_val
);
132 * sst_sc_reg_access - IPC read/write wrapper
134 * @sc_access: array of data, addresses and mask
135 * @type: operation type
136 * @num_val: number of reg to opertae on
138 * Reads/writes/read-modify operations on registers accessed through SCU (sound
139 * card and few SST DSP regsisters that are not accissible to IA)
141 int sst_sc_reg_access(struct sc_reg_access
*sc_access
,
142 int type
, int num_val
)
145 if (type
== PMIC_WRITE
) {
146 for (i
= 0; i
< num_val
; i
++) {
147 retval
= intel_scu_ipc_iowrite8(sc_access
[i
].reg_addr
,
152 } else if (type
== PMIC_READ
) {
153 for (i
= 0; i
< num_val
; i
++) {
154 retval
= intel_scu_ipc_ioread8(sc_access
[i
].reg_addr
,
155 &(sc_access
[i
].value
));
160 for (i
= 0; i
< num_val
; i
++) {
161 retval
= intel_scu_ipc_update_register(
162 sc_access
[i
].reg_addr
, sc_access
[i
].value
,
170 pr_err("IPC failed for cmd %d, %d\n", retval
, type
);
171 pr_err("reg:0x%2x addr:0x%2x\n",
172 sc_access
[i
].reg_addr
, sc_access
[i
].value
);