1 /********************************************* 1 /***************************************************************************
2 2
3 Copyright Echo Digital Audio Corporation (c 3 Copyright Echo Digital Audio Corporation (c) 1998 - 2004
4 All rights reserved 4 All rights reserved
5 www.echoaudio.com 5 www.echoaudio.com
6 6
7 This file is part of Echo Digital Audio's g 7 This file is part of Echo Digital Audio's generic driver library.
8 8
9 Echo Digital Audio's generic driver library 9 Echo Digital Audio's generic driver library is free software;
10 you can redistribute it and/or modify it un 10 you can redistribute it and/or modify it under the terms of
11 the GNU General Public License as published 11 the GNU General Public License as published by the Free Software
12 Foundation. 12 Foundation.
13 13
14 This program is distributed in the hope tha 14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the 15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details 17 GNU General Public License for more details.
18 18
19 You should have received a copy of the GNU 19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to t 20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 3 21 Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 MA 02111-1307, USA. 22 MA 02111-1307, USA.
23 23
24 ******************************************* 24 *************************************************************************
25 25
26 Translation from C++ and adaptation for use i 26 Translation from C++ and adaptation for use in ALSA-Driver
27 were made by Giuliano Pochini <pochini@shiny. 27 were made by Giuliano Pochini <pochini@shiny.it>
28 28
29 ********************************************** 29 ****************************************************************************/
30 30
31 31
32 static int init_hw(struct echoaudio *chip, u16 32 static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id)
33 { 33 {
34 int err; 34 int err;
35 35
36 if (snd_BUG_ON((subdevice_id & 0xfff0) 36 if (snd_BUG_ON((subdevice_id & 0xfff0) != DARLA20))
37 return -ENODEV; 37 return -ENODEV;
38 38
39 err = init_dsp_comm_page(chip); 39 err = init_dsp_comm_page(chip);
40 if (err) { 40 if (err) {
41 dev_err(chip->card->dev, 41 dev_err(chip->card->dev,
42 "init_hw: could not in 42 "init_hw: could not initialize DSP comm page\n");
43 return err; 43 return err;
44 } 44 }
45 45
46 chip->device_id = device_id; 46 chip->device_id = device_id;
47 chip->subdevice_id = subdevice_id; 47 chip->subdevice_id = subdevice_id;
48 chip->bad_board = true; 48 chip->bad_board = true;
49 chip->dsp_code_to_load = FW_DARLA20_DS 49 chip->dsp_code_to_load = FW_DARLA20_DSP;
50 chip->spdif_status = GD_SPDIF_STATUS_U 50 chip->spdif_status = GD_SPDIF_STATUS_UNDEF;
51 chip->clock_state = GD_CLOCK_UNDEF; 51 chip->clock_state = GD_CLOCK_UNDEF;
52 /* Since this card has no ASIC, mark i 52 /* Since this card has no ASIC, mark it as loaded so everything
53 works OK */ 53 works OK */
54 chip->asic_loaded = true; 54 chip->asic_loaded = true;
55 chip->input_clock_types = ECHO_CLOCK_B 55 chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL;
56 56
57 err = load_firmware(chip); 57 err = load_firmware(chip);
58 if (err < 0) 58 if (err < 0)
59 return err; 59 return err;
60 chip->bad_board = false; 60 chip->bad_board = false;
61 61
62 return err; 62 return err;
63 } 63 }
64 64
65 65
66 66
67 static int set_mixer_defaults(struct echoaudio 67 static int set_mixer_defaults(struct echoaudio *chip)
68 { 68 {
69 return init_line_levels(chip); 69 return init_line_levels(chip);
70 } 70 }
71 71
72 72
73 73
74 /* The Darla20 has no external clock sources * 74 /* The Darla20 has no external clock sources */
75 static u32 detect_input_clocks(const struct ec 75 static u32 detect_input_clocks(const struct echoaudio *chip)
76 { 76 {
77 return ECHO_CLOCK_BIT_INTERNAL; 77 return ECHO_CLOCK_BIT_INTERNAL;
78 } 78 }
79 79
80 80
81 81
82 /* The Darla20 has no ASIC. Just do nothing */ 82 /* The Darla20 has no ASIC. Just do nothing */
83 static int load_asic(struct echoaudio *chip) 83 static int load_asic(struct echoaudio *chip)
84 { 84 {
85 return 0; 85 return 0;
86 } 86 }
87 87
88 88
89 89
90 static int set_sample_rate(struct echoaudio *c 90 static int set_sample_rate(struct echoaudio *chip, u32 rate)
91 { 91 {
92 u8 clock_state, spdif_status; 92 u8 clock_state, spdif_status;
93 93
94 if (wait_handshake(chip)) 94 if (wait_handshake(chip))
95 return -EIO; 95 return -EIO;
96 96
97 switch (rate) { 97 switch (rate) {
98 case 44100: 98 case 44100:
99 clock_state = GD_CLOCK_44; 99 clock_state = GD_CLOCK_44;
100 spdif_status = GD_SPDIF_STATUS 100 spdif_status = GD_SPDIF_STATUS_44;
101 break; 101 break;
102 case 48000: 102 case 48000:
103 clock_state = GD_CLOCK_48; 103 clock_state = GD_CLOCK_48;
104 spdif_status = GD_SPDIF_STATUS 104 spdif_status = GD_SPDIF_STATUS_48;
105 break; 105 break;
106 default: 106 default:
107 clock_state = GD_CLOCK_NOCHANG 107 clock_state = GD_CLOCK_NOCHANGE;
108 spdif_status = GD_SPDIF_STATUS 108 spdif_status = GD_SPDIF_STATUS_NOCHANGE;
109 break; 109 break;
110 } 110 }
111 111
112 if (chip->clock_state == clock_state) 112 if (chip->clock_state == clock_state)
113 clock_state = GD_CLOCK_NOCHANG 113 clock_state = GD_CLOCK_NOCHANGE;
114 if (spdif_status == chip->spdif_status 114 if (spdif_status == chip->spdif_status)
115 spdif_status = GD_SPDIF_STATUS 115 spdif_status = GD_SPDIF_STATUS_NOCHANGE;
116 116
117 chip->comm_page->sample_rate = cpu_to_ 117 chip->comm_page->sample_rate = cpu_to_le32(rate);
118 chip->comm_page->gd_clock_state = cloc 118 chip->comm_page->gd_clock_state = clock_state;
119 chip->comm_page->gd_spdif_status = spd 119 chip->comm_page->gd_spdif_status = spdif_status;
120 chip->comm_page->gd_resampler_state = 120 chip->comm_page->gd_resampler_state = 3; /* magic number - should always be 3 */
121 121
122 /* Save the new audio state if it chan 122 /* Save the new audio state if it changed */
123 if (clock_state != GD_CLOCK_NOCHANGE) 123 if (clock_state != GD_CLOCK_NOCHANGE)
124 chip->clock_state = clock_stat 124 chip->clock_state = clock_state;
125 if (spdif_status != GD_SPDIF_STATUS_NO 125 if (spdif_status != GD_SPDIF_STATUS_NOCHANGE)
126 chip->spdif_status = spdif_sta 126 chip->spdif_status = spdif_status;
127 chip->sample_rate = rate; 127 chip->sample_rate = rate;
128 128
129 clear_handshake(chip); 129 clear_handshake(chip);
130 return send_vector(chip, DSP_VC_SET_GD 130 return send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE);
131 } 131 }
132 132
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