1 /****************************************************************************
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 static int load_asic(struct echoaudio *chip);
32 static int dsp_set_digital_mode(struct echoaudio *chip, u8 mode);
33 static int set_digital_mode(struct echoaudio *chip, u8 mode);
34 static int check_asic_status(struct echoaudio *chip);
35 static int set_sample_rate(struct echoaudio *chip, u32 rate);
36 static int set_input_clock(struct echoaudio *chip, u16 clock);
37 static int set_professional_spdif(struct echoaudio *chip, char prof);
38 static int set_phantom_power(struct echoaudio *chip, char on);
39 static int write_control_reg(struct echoaudio *chip, u32 ctl, u32 frq,
40 char force);
41
42 #include <linux/interrupt.h>
43
init_hw(struct echoaudio * chip,u16 device_id,u16 subdevice_id)44 static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id)
45 {
46 int err;
47
48 local_irq_enable();
49 DE_INIT(("init_hw() - Echo3G\n"));
50 if (snd_BUG_ON((subdevice_id & 0xfff0) != ECHO3G))
51 return -ENODEV;
52
53 if ((err = init_dsp_comm_page(chip))) {
54 DE_INIT(("init_hw - could not initialize DSP comm page\n"));
55 return err;
56 }
57
58 chip->comm_page->e3g_frq_register =
59 cpu_to_le32((E3G_MAGIC_NUMBER / 48000) - 2);
60 chip->device_id = device_id;
61 chip->subdevice_id = subdevice_id;
62 chip->bad_board = TRUE;
63 chip->has_midi = TRUE;
64 chip->dsp_code_to_load = FW_ECHO3G_DSP;
65
66 /* Load the DSP code and the ASIC on the PCI card and get
67 what type of external box is attached */
68 err = load_firmware(chip);
69
70 if (err < 0) {
71 return err;
72 } else if (err == E3G_GINA3G_BOX_TYPE) {
73 chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL |
74 ECHO_CLOCK_BIT_SPDIF |
75 ECHO_CLOCK_BIT_ADAT;
76 chip->card_name = "Gina3G";
77 chip->px_digital_out = chip->bx_digital_out = 6;
78 chip->px_analog_in = chip->bx_analog_in = 14;
79 chip->px_digital_in = chip->bx_digital_in = 16;
80 chip->px_num = chip->bx_num = 24;
81 chip->has_phantom_power = TRUE;
82 chip->hasnt_input_nominal_level = TRUE;
83 } else if (err == E3G_LAYLA3G_BOX_TYPE) {
84 chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL |
85 ECHO_CLOCK_BIT_SPDIF |
86 ECHO_CLOCK_BIT_ADAT |
87 ECHO_CLOCK_BIT_WORD;
88 chip->card_name = "Layla3G";
89 chip->px_digital_out = chip->bx_digital_out = 8;
90 chip->px_analog_in = chip->bx_analog_in = 16;
91 chip->px_digital_in = chip->bx_digital_in = 24;
92 chip->px_num = chip->bx_num = 32;
93 } else {
94 return -ENODEV;
95 }
96
97 chip->digital_modes = ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA |
98 ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL |
99 ECHOCAPS_HAS_DIGITAL_MODE_ADAT;
100
101 DE_INIT(("init_hw done\n"));
102 return err;
103 }
104
105
106
set_mixer_defaults(struct echoaudio * chip)107 static int set_mixer_defaults(struct echoaudio *chip)
108 {
109 chip->digital_mode = DIGITAL_MODE_SPDIF_RCA;
110 chip->professional_spdif = FALSE;
111 chip->non_audio_spdif = FALSE;
112 chip->bad_board = FALSE;
113 chip->phantom_power = FALSE;
114 return init_line_levels(chip);
115 }
116
117
118
set_phantom_power(struct echoaudio * chip,char on)119 static int set_phantom_power(struct echoaudio *chip, char on)
120 {
121 u32 control_reg = le32_to_cpu(chip->comm_page->control_register);
122
123 if (on)
124 control_reg |= E3G_PHANTOM_POWER;
125 else
126 control_reg &= ~E3G_PHANTOM_POWER;
127
128 chip->phantom_power = on;
129 return write_control_reg(chip, control_reg,
130 le32_to_cpu(chip->comm_page->e3g_frq_register),
131 0);
132 }
133