[linux-2.6-block.git] / sound / pci / echoaudio / gina20_dsp.c

/****************************************************************************

   Copyright Echo Digital Audio Corporation (c) 1998 - 2004
   All rights reserved
   www.echoaudio.com

   This file is part of Echo Digital Audio's generic driver library.

   Echo Digital Audio's generic driver library is free software;
   you can redistribute it and/or modify it under the terms of
   the GNU General Public License as published by the Free Software
   Foundation.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston,
   MA  02111-1307, USA.

   *************************************************************************

 Translation from C++ and adaptation for use in ALSA-Driver
 were made by Giuliano Pochini <pochini@shiny.it>

****************************************************************************/


static int set_professional_spdif(struct echoaudio *chip, char prof);
static int update_flags(struct echoaudio *chip);


static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id)
{
	int err;

	if (snd_BUG_ON((subdevice_id & 0xfff0) != GINA20))
		return -ENODEV;

	if ((err = init_dsp_comm_page(chip))) {
		dev_err(chip->card->dev,
			"init_hw - could not initialize DSP comm page\n");
		return err;
	}

	chip->device_id = device_id;
	chip->subdevice_id = subdevice_id;
	chip->bad_board = true;
	chip->dsp_code_to_load = FW_GINA20_DSP;
	chip->spdif_status = GD_SPDIF_STATUS_UNDEF;
	chip->clock_state = GD_CLOCK_UNDEF;
	/* Since this card has no ASIC, mark it as loaded so everything
	   works OK */
	chip->asic_loaded = true;
	chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL |
		ECHO_CLOCK_BIT_SPDIF;

	if ((err = load_firmware(chip)) < 0)
		return err;
	chip->bad_board = false;

	return err;
}


static int set_mixer_defaults(struct echoaudio *chip)
{
	chip->professional_spdif = false;
	return init_line_levels(chip);
}


static u32 detect_input_clocks(const struct echoaudio *chip)
{
	u32 clocks_from_dsp, clock_bits;

	/* Map the DSP clock detect bits to the generic driver clock
	   detect bits */
	clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks);

	clock_bits = ECHO_CLOCK_BIT_INTERNAL;

	if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SPDIF)
		clock_bits |= ECHO_CLOCK_BIT_SPDIF;

	return clock_bits;
}


/* The Gina20 has no ASIC. Just do nothing */
static int load_asic(struct echoaudio *chip)
{
	return 0;
}


static int set_sample_rate(struct echoaudio *chip, u32 rate)
{
	u8 clock_state, spdif_status;

	if (wait_handshake(chip))
		return -EIO;

	switch (rate) {
	case 44100:
		clock_state = GD_CLOCK_44;
		spdif_status = GD_SPDIF_STATUS_44;
		break;
	case 48000:
		clock_state = GD_CLOCK_48;
		spdif_status = GD_SPDIF_STATUS_48;
		break;
	default:
		clock_state = GD_CLOCK_NOCHANGE;
		spdif_status = GD_SPDIF_STATUS_NOCHANGE;
		break;
	}

	if (chip->clock_state == clock_state)
		clock_state = GD_CLOCK_NOCHANGE;
	if (spdif_status == chip->spdif_status)
		spdif_status = GD_SPDIF_STATUS_NOCHANGE;

	chip->comm_page->sample_rate = cpu_to_le32(rate);
	chip->comm_page->gd_clock_state = clock_state;
	chip->comm_page->gd_spdif_status = spdif_status;
	chip->comm_page->gd_resampler_state = 3;	/* magic number - should always be 3 */

	/* Save the new audio state if it changed */
	if (clock_state != GD_CLOCK_NOCHANGE)
		chip->clock_state = clock_state;
	if (spdif_status != GD_SPDIF_STATUS_NOCHANGE)
		chip->spdif_status = spdif_status;
	chip->sample_rate = rate;

	clear_handshake(chip);
	return send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE);
}


static int set_input_clock(struct echoaudio *chip, u16 clock)
{

	switch (clock) {
	case ECHO_CLOCK_INTERNAL:
		/* Reset the audio state to unknown (just in case) */
		chip->clock_state = GD_CLOCK_UNDEF;
		chip->spdif_status = GD_SPDIF_STATUS_UNDEF;
		set_sample_rate(chip, chip->sample_rate);
		chip->input_clock = clock;
		break;
	case ECHO_CLOCK_SPDIF:
		chip->comm_page->gd_clock_state = GD_CLOCK_SPDIFIN;
		chip->comm_page->gd_spdif_status = GD_SPDIF_STATUS_NOCHANGE;
		clear_handshake(chip);
		send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE);
		chip->clock_state = GD_CLOCK_SPDIFIN;
		chip->input_clock = clock;
		break;
	default:
		return -EINVAL;
	}

	return 0;
}


/* Set input bus gain (one unit is 0.5dB !) */
static int set_input_gain(struct echoaudio *chip, u16 input, int gain)
{
	if (snd_BUG_ON(input >= num_busses_in(chip)))
		return -EINVAL;

	if (wait_handshake(chip))
		return -EIO;

	chip->input_gain[input] = gain;
	gain += GL20_INPUT_GAIN_MAGIC_NUMBER;
	chip->comm_page->line_in_level[input] = gain;
	return 0;
}


/* Tell the DSP to reread the flags from the comm page */
static int update_flags(struct echoaudio *chip)
{
	if (wait_handshake(chip))
		return -EIO;
	clear_handshake(chip);
	return send_vector(chip, DSP_VC_UPDATE_FLAGS);
}


static int set_professional_spdif(struct echoaudio *chip, char prof)
{
	if (prof)
		chip->comm_page->flags |=
			cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF);
	else
		chip->comm_page->flags &=
			~cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF);
	chip->professional_spdif = prof;
	return update_flags(chip);
}
Commit	Line	Data
dd7b254d GP	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
	32	static int set_professional_spdif(struct echoaudio *chip, char prof);
	33	static int update_flags(struct echoaudio *chip);
	34
	35
	36	static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id)
	37	{
	38	int err;
	39
da3cec35 TI	40	if (snd_BUG_ON((subdevice_id & 0xfff0) != GINA20))
da3cec35 TI	41	return -ENODEV;
dd7b254d GP	42
dd7b254d GP	43	if ((err = init_dsp_comm_page(chip))) {
b5b4a41b SM	44	dev_err(chip->card->dev,
b5b4a41b SM	45	"init_hw - could not initialize DSP comm page\n");
dd7b254d GP	46	return err;
	47	}
	48
	49	chip->device_id = device_id;
	50	chip->subdevice_id = subdevice_id;
3f6175ec	51	chip->bad_board = true;
19b50063	52	chip->dsp_code_to_load = FW_GINA20_DSP;
dd7b254d GP	53	chip->spdif_status = GD_SPDIF_STATUS_UNDEF;
	54	chip->clock_state = GD_CLOCK_UNDEF;
	55	/* Since this card has no ASIC, mark it as loaded so everything
	56	works OK */
3f6175ec	57	chip->asic_loaded = true;
dd7b254d GP	58	chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL \|
	59	ECHO_CLOCK_BIT_SPDIF;
	60
	61	if ((err = load_firmware(chip)) < 0)
	62	return err;
3f6175ec	63	chip->bad_board = false;
dd7b254d	64
dd7b254d GP	65	return err;
	66	}
	67
	68
	69
ad3499f4 GP	70	static int set_mixer_defaults(struct echoaudio *chip)
ad3499f4 GP	71	{
3f6175ec	72	chip->professional_spdif = false;
ad3499f4 GP	73	return init_line_levels(chip);
	74	}
	75
	76
	77
dd7b254d GP	78	static 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 Gina20 has no ASIC. Just do nothing */
	97	static int load_asic(struct echoaudio *chip)
	98	{
	99	return 0;
	100	}
	101
	102
	103
	104	static int set_sample_rate(struct echoaudio *chip, u32 rate)
	105	{
	106	u8 clock_state, spdif_status;
	107
	108	if (wait_handshake(chip))
	109	return -EIO;
	110
	111	switch (rate) {
	112	case 44100:
	113	clock_state = GD_CLOCK_44;
	114	spdif_status = GD_SPDIF_STATUS_44;
	115	break;
	116	case 48000:
	117	clock_state = GD_CLOCK_48;
	118	spdif_status = GD_SPDIF_STATUS_48;
	119	break;
	120	default:
	121	clock_state = GD_CLOCK_NOCHANGE;
	122	spdif_status = GD_SPDIF_STATUS_NOCHANGE;
	123	break;
	124	}
	125
	126	if (chip->clock_state == clock_state)
	127	clock_state = GD_CLOCK_NOCHANGE;
	128	if (spdif_status == chip->spdif_status)
	129	spdif_status = GD_SPDIF_STATUS_NOCHANGE;
	130
	131	chip->comm_page->sample_rate = cpu_to_le32(rate);
	132	chip->comm_page->gd_clock_state = clock_state;
	133	chip->comm_page->gd_spdif_status = spdif_status;
	134	chip->comm_page->gd_resampler_state = 3; /* magic number - should always be 3 */
	135
	136	/* Save the new audio state if it changed */
	137	if (clock_state != GD_CLOCK_NOCHANGE)
	138	chip->clock_state = clock_state;
	139	if (spdif_status != GD_SPDIF_STATUS_NOCHANGE)
	140	chip->spdif_status = spdif_status;
	141	chip->sample_rate = rate;
142
143	clear_handshake(chip);
144	return send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE);
145	}
146
147
148
149	static int set_input_clock(struct echoaudio *chip, u16 clock)
150	{
dd7b254d GP	151
	152	switch (clock) {
	153	case ECHO_CLOCK_INTERNAL:
	154	/* Reset the audio state to unknown (just in case) */
	155	chip->clock_state = GD_CLOCK_UNDEF;
	156	chip->spdif_status = GD_SPDIF_STATUS_UNDEF;
	157	set_sample_rate(chip, chip->sample_rate);
	158	chip->input_clock = clock;
dd7b254d GP	159	break;
	160	case ECHO_CLOCK_SPDIF:
	161	chip->comm_page->gd_clock_state = GD_CLOCK_SPDIFIN;
	162	chip->comm_page->gd_spdif_status = GD_SPDIF_STATUS_NOCHANGE;
	163	clear_handshake(chip);
	164	send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE);
	165	chip->clock_state = GD_CLOCK_SPDIFIN;
dd7b254d GP	166	chip->input_clock = clock;
	167	break;
	168	default:
	169	return -EINVAL;
	170	}
	171
	172	return 0;
	173	}
	174
	175
	176
	177	/* Set input bus gain (one unit is 0.5dB !) */
	178	static int set_input_gain(struct echoaudio *chip, u16 input, int gain)
	179	{
da3cec35 TI	180	if (snd_BUG_ON(input >= num_busses_in(chip)))
da3cec35 TI	181	return -EINVAL;
dd7b254d GP	182
	183	if (wait_handshake(chip))
	184	return -EIO;
	185
	186	chip->input_gain[input] = gain;
	187	gain += GL20_INPUT_GAIN_MAGIC_NUMBER;
	188	chip->comm_page->line_in_level[input] = gain;
	189	return 0;
	190	}
	191
	192
	193
	194	/* Tell the DSP to reread the flags from the comm page */
	195	static int update_flags(struct echoaudio *chip)
	196	{
	197	if (wait_handshake(chip))
	198	return -EIO;
	199	clear_handshake(chip);
	200	return send_vector(chip, DSP_VC_UPDATE_FLAGS);
	201	}
	202
	203
	204
	205	static int set_professional_spdif(struct echoaudio *chip, char prof)
	206	{
dd7b254d GP	207	if (prof)
dd7b254d GP	208	chip->comm_page->flags \|=
e930e995	209	cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF);
dd7b254d GP	210	else
dd7b254d GP	211	chip->comm_page->flags &=
e930e995	212	~cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF);
dd7b254d GP	213	chip->professional_spdif = prof;
	214	return update_flags(chip);
	215	}