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
31static int load_asic(struct echoaudio *chip);
32static int dsp_set_digital_mode(struct echoaudio *chip, u8 mode);
33static int set_digital_mode(struct echoaudio *chip, u8 mode);
34static int check_asic_status(struct echoaudio *chip);
35static int set_sample_rate(struct echoaudio *chip, u32 rate);
36static int set_input_clock(struct echoaudio *chip, u16 clock);
37static int set_professional_spdif(struct echoaudio *chip, char prof);
38static int set_phantom_power(struct echoaudio *chip, char on);
39static int write_control_reg(struct echoaudio *chip, u32 ctl, u32 frq,
40			     char force);
41
42#include <linux/interrupt.h>
43
44static 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	snd_assert((subdevice_id & 0xfff0) == ECHO3G, return -ENODEV);
51
52	if ((err = init_dsp_comm_page(chip))) {
53		DE_INIT(("init_hw - could not initialize DSP comm page\n"));
54		return err;
55	}
56
57	chip->comm_page->e3g_frq_register =
58		__constant_cpu_to_le32((E3G_MAGIC_NUMBER / 48000) - 2);
59	chip->device_id = device_id;
60	chip->subdevice_id = subdevice_id;
61	chip->bad_board = TRUE;
62	chip->has_midi = TRUE;
63	chip->dsp_code_to_load = &card_fw[FW_ECHO3G_DSP];
64
65	/* Load the DSP code and the ASIC on the PCI card and get
66	what type of external box is attached */
67	err = load_firmware(chip);
68
69	if (err < 0) {
70		return err;
71	} else if (err == E3G_GINA3G_BOX_TYPE) {
72		chip->input_clock_types =	ECHO_CLOCK_BIT_INTERNAL |
73						ECHO_CLOCK_BIT_SPDIF |
74						ECHO_CLOCK_BIT_ADAT;
75		chip->card_name = "Gina3G";
76		chip->px_digital_out = chip->bx_digital_out = 6;
77		chip->px_analog_in = chip->bx_analog_in = 14;
78		chip->px_digital_in = chip->bx_digital_in = 16;
79		chip->px_num = chip->bx_num = 24;
80		chip->has_phantom_power = TRUE;
81		chip->hasnt_input_nominal_level = TRUE;
82	} else if (err == E3G_LAYLA3G_BOX_TYPE) {
83		chip->input_clock_types =	ECHO_CLOCK_BIT_INTERNAL |
84						ECHO_CLOCK_BIT_SPDIF |
85						ECHO_CLOCK_BIT_ADAT |
86						ECHO_CLOCK_BIT_WORD;
87		chip->card_name = "Layla3G";
88		chip->px_digital_out = chip->bx_digital_out = 8;
89		chip->px_analog_in = chip->bx_analog_in = 16;
90		chip->px_digital_in = chip->bx_digital_in = 24;
91		chip->px_num = chip->bx_num = 32;
92	} else {
93		return -ENODEV;
94	}
95
96	chip->digital_modes =	ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA |
97				ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL |
98				ECHOCAPS_HAS_DIGITAL_MODE_ADAT;
99	chip->digital_mode =	DIGITAL_MODE_SPDIF_RCA;
100	chip->professional_spdif = FALSE;
101	chip->non_audio_spdif = FALSE;
102	chip->bad_board = FALSE;
103
104	if ((err = init_line_levels(chip)) < 0)
105		return err;
106	err = set_digital_mode(chip, DIGITAL_MODE_SPDIF_RCA);
107	snd_assert(err >= 0, return err);
108	err = set_phantom_power(chip, 0);
109	snd_assert(err >= 0, return err);
110	err = set_professional_spdif(chip, TRUE);
111
112	DE_INIT(("init_hw done\n"));
113	return err;
114}
115
116
117
118static int set_phantom_power(struct echoaudio *chip, char on)
119{
120	u32 control_reg = le32_to_cpu(chip->comm_page->control_register);
121
122	if (on)
123		control_reg |= E3G_PHANTOM_POWER;
124	else
125		control_reg &= ~E3G_PHANTOM_POWER;
126
127	chip->phantom_power = on;
128	return write_control_reg(chip, control_reg,
129				 le32_to_cpu(chip->comm_page->e3g_frq_register),
130				 0);
131}
132