blob: 551405114cbc67a33f04f0bf3fa37038ce1b32b7 [file] [log] [blame]
Giuliano Pochinidd7b2542006-06-28 13:53:41 +02001/****************************************************************************
2
3 Copyright Echo Digital Audio Corporation (c) 1998 - 2004
4 All rights reserved
5 www.echoaudio.com
6
7 This file is part of Echo Digital Audio's generic driver library.
8
9 Echo Digital Audio's generic driver library is free software;
10 you can redistribute it and/or modify it under the terms of
11 the GNU General Public License as published by the Free Software
12 Foundation.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 MA 02111-1307, USA.
23
24 *************************************************************************
25
26 Translation from C++ and adaptation for use in ALSA-Driver
27 were made by Giuliano Pochini <pochini@shiny.it>
28
29****************************************************************************/
30
31
32static int set_input_clock(struct echoaudio *chip, u16 clock);
33static int set_professional_spdif(struct echoaudio *chip, char prof);
34static int update_flags(struct echoaudio *chip);
35static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe,
36 int gain);
37static int update_vmixer_level(struct echoaudio *chip);
38
39
40static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id)
41{
42 int err;
43
44 DE_INIT(("init_hw() - Mia\n"));
Takashi Iwaida3cec32008-08-08 17:12:14 +020045 if (snd_BUG_ON((subdevice_id & 0xfff0) != MIA))
46 return -ENODEV;
Giuliano Pochinidd7b2542006-06-28 13:53:41 +020047
48 if ((err = init_dsp_comm_page(chip))) {
49 DE_INIT(("init_hw - could not initialize DSP comm page\n"));
50 return err;
51 }
52
53 chip->device_id = device_id;
54 chip->subdevice_id = subdevice_id;
55 chip->bad_board = TRUE;
56 chip->dsp_code_to_load = &card_fw[FW_MIA_DSP];
57 /* Since this card has no ASIC, mark it as loaded so everything
58 works OK */
59 chip->asic_loaded = TRUE;
60 if ((subdevice_id & 0x0000f) == MIA_MIDI_REV)
61 chip->has_midi = TRUE;
62 chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL |
63 ECHO_CLOCK_BIT_SPDIF;
64
65 if ((err = load_firmware(chip)) < 0)
66 return err;
67 chip->bad_board = FALSE;
68
69 if ((err = init_line_levels(chip)))
70 return err;
71
Giuliano Pochinidd7b2542006-06-28 13:53:41 +020072 DE_INIT(("init_hw done\n"));
73 return err;
74}
75
76
77
78static u32 detect_input_clocks(const struct echoaudio *chip)
79{
80 u32 clocks_from_dsp, clock_bits;
81
82 /* Map the DSP clock detect bits to the generic driver clock
83 detect bits */
84 clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks);
85
86 clock_bits = ECHO_CLOCK_BIT_INTERNAL;
87
88 if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SPDIF)
89 clock_bits |= ECHO_CLOCK_BIT_SPDIF;
90
91 return clock_bits;
92}
93
94
95
96/* The Mia has no ASIC. Just do nothing */
97static int load_asic(struct echoaudio *chip)
98{
99 return 0;
100}
101
102
103
104static int set_sample_rate(struct echoaudio *chip, u32 rate)
105{
106 u32 control_reg;
107
108 switch (rate) {
109 case 96000:
110 control_reg = MIA_96000;
111 break;
112 case 88200:
113 control_reg = MIA_88200;
114 break;
115 case 48000:
116 control_reg = MIA_48000;
117 break;
118 case 44100:
119 control_reg = MIA_44100;
120 break;
121 case 32000:
122 control_reg = MIA_32000;
123 break;
124 default:
125 DE_ACT(("set_sample_rate: %d invalid!\n", rate));
126 return -EINVAL;
127 }
128
129 /* Override the clock setting if this Mia is set to S/PDIF clock */
130 if (chip->input_clock == ECHO_CLOCK_SPDIF)
131 control_reg |= MIA_SPDIF;
132
133 /* Set the control register if it has changed */
134 if (control_reg != le32_to_cpu(chip->comm_page->control_register)) {
135 if (wait_handshake(chip))
136 return -EIO;
137
138 chip->comm_page->sample_rate = cpu_to_le32(rate); /* ignored by the DSP */
139 chip->comm_page->control_register = cpu_to_le32(control_reg);
140 chip->sample_rate = rate;
141
142 clear_handshake(chip);
143 return send_vector(chip, DSP_VC_UPDATE_CLOCKS);
144 }
145 return 0;
146}
147
148
149
150static int set_input_clock(struct echoaudio *chip, u16 clock)
151{
152 DE_ACT(("set_input_clock(%d)\n", clock));
Takashi Iwaida3cec32008-08-08 17:12:14 +0200153 if (snd_BUG_ON(clock != ECHO_CLOCK_INTERNAL &&
154 clock != ECHO_CLOCK_SPDIF))
155 return -EINVAL;
Giuliano Pochinidd7b2542006-06-28 13:53:41 +0200156
157 chip->input_clock = clock;
158 return set_sample_rate(chip, chip->sample_rate);
159}
160
161
162
163/* This function routes the sound from a virtual channel to a real output */
164static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe,
165 int gain)
166{
167 int index;
168
Takashi Iwaida3cec32008-08-08 17:12:14 +0200169 if (snd_BUG_ON(pipe >= num_pipes_out(chip) ||
170 output >= num_busses_out(chip)))
171 return -EINVAL;
Giuliano Pochinidd7b2542006-06-28 13:53:41 +0200172
173 if (wait_handshake(chip))
174 return -EIO;
175
176 chip->vmixer_gain[output][pipe] = gain;
177 index = output * num_pipes_out(chip) + pipe;
178 chip->comm_page->vmixer[index] = gain;
179
180 DE_ACT(("set_vmixer_gain: pipe %d, out %d = %d\n", pipe, output, gain));
181 return 0;
182}
183
184
185
186/* Tell the DSP to read and update virtual mixer levels in comm page. */
187static int update_vmixer_level(struct echoaudio *chip)
188{
189 if (wait_handshake(chip))
190 return -EIO;
191 clear_handshake(chip);
192 return send_vector(chip, DSP_VC_SET_VMIXER_GAIN);
193}
194
195
196
197/* Tell the DSP to reread the flags from the comm page */
198static int update_flags(struct echoaudio *chip)
199{
200 if (wait_handshake(chip))
201 return -EIO;
202 clear_handshake(chip);
203 return send_vector(chip, DSP_VC_UPDATE_FLAGS);
204}
205
206
207
208static int set_professional_spdif(struct echoaudio *chip, char prof)
209{
210 DE_ACT(("set_professional_spdif %d\n", prof));
211 if (prof)
212 chip->comm_page->flags |=
Harvey Harrisone930e992009-02-11 14:49:30 -0800213 cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF);
Giuliano Pochinidd7b2542006-06-28 13:53:41 +0200214 else
215 chip->comm_page->flags &=
Harvey Harrisone930e992009-02-11 14:49:30 -0800216 ~cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF);
Giuliano Pochinidd7b2542006-06-28 13:53:41 +0200217 chip->professional_spdif = prof;
218 return update_flags(chip);
219}
220