[linux-2.6-block.git] / sound / pci / echoaudio / mia_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_input_clock(struct echoaudio *chip, u16 clock);
static int set_professional_spdif(struct echoaudio *chip, char prof);
static int update_flags(struct echoaudio *chip);
static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe,
			   int gain);
static int update_vmixer_level(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) != MIA))
		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_MIA_DSP;
	/* Since this card has no ASIC, mark it as loaded so everything
	   works OK */
	chip->asic_loaded = true;
	if ((subdevice_id & 0x0000f) == MIA_MIDI_REV)
		chip->has_midi = 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)
{
	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 Mia 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)
{
	u32 control_reg;

	switch (rate) {
	case 96000:
		control_reg = MIA_96000;
		break;
	case 88200:
		control_reg = MIA_88200;
		break;
	case 48000:
		control_reg = MIA_48000;
		break;
	case 44100:
		control_reg = MIA_44100;
		break;
	case 32000:
		control_reg = MIA_32000;
		break;
	default:
		dev_err(chip->card->dev,
			"set_sample_rate: %d invalid!\n", rate);
		return -EINVAL;
	}

	/* Override the clock setting if this Mia is set to S/PDIF clock */
	if (chip->input_clock == ECHO_CLOCK_SPDIF)
		control_reg |= MIA_SPDIF;

	/* Set the control register if it has changed */
	if (control_reg != le32_to_cpu(chip->comm_page->control_register)) {
		if (wait_handshake(chip))
			return -EIO;

		chip->comm_page->sample_rate = cpu_to_le32(rate);	/* ignored by the DSP */
		chip->comm_page->control_register = cpu_to_le32(control_reg);
		chip->sample_rate = rate;

		clear_handshake(chip);
		return send_vector(chip, DSP_VC_UPDATE_CLOCKS);
	}
	return 0;
}


static int set_input_clock(struct echoaudio *chip, u16 clock)
{
	dev_dbg(chip->card->dev, "set_input_clock(%d)\n", clock);
	if (snd_BUG_ON(clock != ECHO_CLOCK_INTERNAL &&
		       clock != ECHO_CLOCK_SPDIF))
		return -EINVAL;

	chip->input_clock = clock;
	return set_sample_rate(chip, chip->sample_rate);
}


/* This function routes the sound from a virtual channel to a real output */
static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe,
			   int gain)
{
	int index;

	if (snd_BUG_ON(pipe >= num_pipes_out(chip) ||
		       output >= num_busses_out(chip)))
		return -EINVAL;

	if (wait_handshake(chip))
		return -EIO;

	chip->vmixer_gain[output][pipe] = gain;
	index = output * num_pipes_out(chip) + pipe;
	chip->comm_page->vmixer[index] = gain;

	dev_dbg(chip->card->dev,
		"set_vmixer_gain: pipe %d, out %d = %d\n", pipe, output, gain);
	return 0;
}


/* Tell the DSP to read and update virtual mixer levels in comm page. */
static int update_vmixer_level(struct echoaudio *chip)
{
	if (wait_handshake(chip))
		return -EIO;
	clear_handshake(chip);
	return send_vector(chip, DSP_VC_SET_VMIXER_GAIN);
}


/* 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)
{
	dev_dbg(chip->card->dev, "set_professional_spdif %d\n", 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_input_clock(struct echoaudio *chip, u16 clock);
	33	static int set_professional_spdif(struct echoaudio *chip, char prof);
	34	static int update_flags(struct echoaudio *chip);
	35	static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe,
	36	int gain);
	37	static int update_vmixer_level(struct echoaudio *chip);
	38
	39
	40	static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id)
	41	{
	42	int err;
	43
da3cec35 TI	44	if (snd_BUG_ON((subdevice_id & 0xfff0) != MIA))
da3cec35 TI	45	return -ENODEV;
dd7b254d GP	46
dd7b254d GP	47	if ((err = init_dsp_comm_page(chip))) {
b5b4a41b SM	48	dev_err(chip->card->dev,
b5b4a41b SM	49	"init_hw - could not initialize DSP comm page\n");
dd7b254d GP	50	return err;
	51	}
	52
	53	chip->device_id = device_id;
	54	chip->subdevice_id = subdevice_id;
3f6175ec	55	chip->bad_board = true;
19b50063	56	chip->dsp_code_to_load = FW_MIA_DSP;
dd7b254d GP	57	/* Since this card has no ASIC, mark it as loaded so everything
dd7b254d GP	58	works OK */
3f6175ec	59	chip->asic_loaded = true;
dd7b254d	60	if ((subdevice_id & 0x0000f) == MIA_MIDI_REV)
3f6175ec	61	chip->has_midi = true;
dd7b254d GP	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;
3f6175ec	67	chip->bad_board = false;
dd7b254d	68
dd7b254d GP	69	return err;
	70	}
	71
	72
	73
ad3499f4 GP	74	static int set_mixer_defaults(struct echoaudio *chip)
	75	{
	76	return init_line_levels(chip);
	77	}
	78
	79
	80
dd7b254d GP	81	static u32 detect_input_clocks(const struct echoaudio *chip)
	82	{
	83	u32 clocks_from_dsp, clock_bits;
	84
	85	/* Map the DSP clock detect bits to the generic driver clock
	86	detect bits */
	87	clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks);
	88
	89	clock_bits = ECHO_CLOCK_BIT_INTERNAL;
	90
	91	if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SPDIF)
	92	clock_bits \|= ECHO_CLOCK_BIT_SPDIF;
	93
	94	return clock_bits;
	95	}
	96
	97
	98
	99	/* The Mia has no ASIC. Just do nothing */
	100	static int load_asic(struct echoaudio *chip)
	101	{
	102	return 0;
	103	}
	104
	105
	106
	107	static int set_sample_rate(struct echoaudio *chip, u32 rate)
	108	{
	109	u32 control_reg;
	110
	111	switch (rate) {
	112	case 96000:
	113	control_reg = MIA_96000;
	114	break;
	115	case 88200:
	116	control_reg = MIA_88200;
	117	break;
	118	case 48000:
	119	control_reg = MIA_48000;
	120	break;
	121	case 44100:
	122	control_reg = MIA_44100;
	123	break;
	124	case 32000:
	125	control_reg = MIA_32000;
	126	break;
	127	default:
b5b4a41b SM	128	dev_err(chip->card->dev,
b5b4a41b SM	129	"set_sample_rate: %d invalid!\n", rate);
dd7b254d GP	130	return -EINVAL;
	131	}
	132
	133	/* Override the clock setting if this Mia is set to S/PDIF clock */
	134	if (chip->input_clock == ECHO_CLOCK_SPDIF)
	135	control_reg \|= MIA_SPDIF;
	136
	137	/* Set the control register if it has changed */
	138	if (control_reg != le32_to_cpu(chip->comm_page->control_register)) {
	139	if (wait_handshake(chip))
	140	return -EIO;
	141
	142	chip->comm_page->sample_rate = cpu_to_le32(rate); /* ignored by the DSP */
	143	chip->comm_page->control_register = cpu_to_le32(control_reg);
	144	chip->sample_rate = rate;
	145
	146	clear_handshake(chip);
	147	return send_vector(chip, DSP_VC_UPDATE_CLOCKS);
	148	}
	149	return 0;
	150	}
	151
	152
	153
	154	static int set_input_clock(struct echoaudio *chip, u16 clock)
	155	{
b5b4a41b	156	dev_dbg(chip->card->dev, "set_input_clock(%d)\n", clock);
da3cec35 TI	157	if (snd_BUG_ON(clock != ECHO_CLOCK_INTERNAL &&
	158	clock != ECHO_CLOCK_SPDIF))
	159	return -EINVAL;
dd7b254d GP	160
	161	chip->input_clock = clock;
	162	return set_sample_rate(chip, chip->sample_rate);
	163	}
	164
	165
	166
	167	/* This function routes the sound from a virtual channel to a real output */
	168	static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe,
	169	int gain)
	170	{
	171	int index;
	172
da3cec35 TI	173	if (snd_BUG_ON(pipe >= num_pipes_out(chip) \|\|
	174	output >= num_busses_out(chip)))
	175	return -EINVAL;
dd7b254d GP	176
	177	if (wait_handshake(chip))
	178	return -EIO;
	179
	180	chip->vmixer_gain[output][pipe] = gain;
	181	index = output * num_pipes_out(chip) + pipe;
	182	chip->comm_page->vmixer[index] = gain;
	183
b5b4a41b SM	184	dev_dbg(chip->card->dev,
b5b4a41b SM	185	"set_vmixer_gain: pipe %d, out %d = %d\n", pipe, output, gain);
dd7b254d GP	186	return 0;
	187	}
	188
	189
	190
	191	/* Tell the DSP to read and update virtual mixer levels in comm page. */
	192	static int update_vmixer_level(struct echoaudio *chip)
	193	{
	194	if (wait_handshake(chip))
	195	return -EIO;
	196	clear_handshake(chip);
	197	return send_vector(chip, DSP_VC_SET_VMIXER_GAIN);
	198	}
	199
	200
	201
	202	/* Tell the DSP to reread the flags from the comm page */
	203	static int update_flags(struct echoaudio *chip)
	204	{
	205	if (wait_handshake(chip))
	206	return -EIO;
	207	clear_handshake(chip);
	208	return send_vector(chip, DSP_VC_UPDATE_FLAGS);
	209	}
	210
	211
	212
	213	static int set_professional_spdif(struct echoaudio *chip, char prof)
	214	{
b5b4a41b	215	dev_dbg(chip->card->dev, "set_professional_spdif %d\n", prof);
dd7b254d GP	216	if (prof)
dd7b254d GP	217	chip->comm_page->flags \|=
e930e995	218	cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF);
dd7b254d GP	219	else
dd7b254d GP	220	chip->comm_page->flags &=
e930e995	221	~cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF);
dd7b254d GP	222	chip->professional_spdif = prof;
	223	return update_flags(chip);
	224	}
	225