[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;

	DE_INIT(("init_hw() - Mia\n"));
	if (snd_BUG_ON((subdevice_id & 0xfff0) != MIA))
		return -ENODEV;

	if ((err = init_dsp_comm_page(chip))) {
		DE_INIT(("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 = &card_fw[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;

	if ((err = init_line_levels(chip)))
		return err;

	DE_INIT(("init_hw done\n"));
	return err;
}


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:
		DE_ACT(("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)
{
	DE_ACT(("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;

	DE_ACT(("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)
{
	DE_ACT(("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
	44	DE_INIT(("init_hw() - Mia\n"));
da3cec35 TI	45	if (snd_BUG_ON((subdevice_id & 0xfff0) != MIA))
da3cec35 TI	46	return -ENODEV;
dd7b254d GP	47
	48	if ((err = init_dsp_comm_page(chip))) {
	49	DE_INIT(("init_hw - could not initialize DSP comm page\n"));
	50	return err;
	51	}
	52
	53	chip->device_id = device_id;
	54	chip->subdevice_id = subdevice_id;
	55	chip->bad_board = TRUE;
	56	chip->dsp_code_to_load = &card_fw[FW_MIA_DSP];
	57	/* Since this card has no ASIC, mark it as loaded so everything
	58	works OK */
	59	chip->asic_loaded = TRUE;
	60	if ((subdevice_id & 0x0000f) == MIA_MIDI_REV)
	61	chip->has_midi = TRUE;
	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;
	67	chip->bad_board = FALSE;
	68
	69	if ((err = init_line_levels(chip)))
	70	return err;
	71
dd7b254d GP	72	DE_INIT(("init_hw done\n"));
	73	return err;
	74	}
	75
	76
	77
	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 Mia 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	u32 control_reg;
	107
	108	switch (rate) {
	109	case 96000:
	110	control_reg = MIA_96000;
	111	break;
	112	case 88200:
	113	control_reg = MIA_88200;
	114	break;
	115	case 48000:
	116	control_reg = MIA_48000;
	117	break;
	118	case 44100:
	119	control_reg = MIA_44100;
	120	break;
	121	case 32000:
	122	control_reg = MIA_32000;
	123	break;
	124	default:
	125	DE_ACT(("set_sample_rate: %d invalid!\n", rate));
	126	return -EINVAL;
	127	}
	128
	129	/* Override the clock setting if this Mia is set to S/PDIF clock */
	130	if (chip->input_clock == ECHO_CLOCK_SPDIF)
	131	control_reg \|= MIA_SPDIF;
	132
	133	/* Set the control register if it has changed */
	134	if (control_reg != le32_to_cpu(chip->comm_page->control_register)) {
	135	if (wait_handshake(chip))
136	return -EIO;
137
138	chip->comm_page->sample_rate = cpu_to_le32(rate); /* ignored by the DSP */
139	chip->comm_page->control_register = cpu_to_le32(control_reg);
140	chip->sample_rate = rate;
141
142	clear_handshake(chip);
143	return send_vector(chip, DSP_VC_UPDATE_CLOCKS);
144	}
145	return 0;
146	}
147
148
149
150	static int set_input_clock(struct echoaudio *chip, u16 clock)
151	{
152	DE_ACT(("set_input_clock(%d)\n", clock));
da3cec35 TI	153	if (snd_BUG_ON(clock != ECHO_CLOCK_INTERNAL &&
	154	clock != ECHO_CLOCK_SPDIF))
	155	return -EINVAL;
dd7b254d GP	156
	157	chip->input_clock = clock;
	158	return set_sample_rate(chip, chip->sample_rate);
	159	}
	160
	161
	162
	163	/* This function routes the sound from a virtual channel to a real output */
	164	static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe,
	165	int gain)
	166	{
	167	int index;
	168
da3cec35 TI	169	if (snd_BUG_ON(pipe >= num_pipes_out(chip) \|\|
	170	output >= num_busses_out(chip)))
	171	return -EINVAL;
dd7b254d GP	172
	173	if (wait_handshake(chip))
	174	return -EIO;
	175
	176	chip->vmixer_gain[output][pipe] = gain;
	177	index = output * num_pipes_out(chip) + pipe;
	178	chip->comm_page->vmixer[index] = gain;
	179
	180	DE_ACT(("set_vmixer_gain: pipe %d, out %d = %d\n", pipe, output, gain));
	181	return 0;
	182	}
	183
	184
	185
	186	/* Tell the DSP to read and update virtual mixer levels in comm page. */
	187	static int update_vmixer_level(struct echoaudio *chip)
	188	{
	189	if (wait_handshake(chip))
	190	return -EIO;
	191	clear_handshake(chip);
	192	return send_vector(chip, DSP_VC_SET_VMIXER_GAIN);
	193	}
	194
	195
	196
	197	/* Tell the DSP to reread the flags from the comm page */
	198	static int update_flags(struct echoaudio *chip)
	199	{
	200	if (wait_handshake(chip))
	201	return -EIO;
	202	clear_handshake(chip);
	203	return send_vector(chip, DSP_VC_UPDATE_FLAGS);
	204	}
	205
	206
	207
	208	static int set_professional_spdif(struct echoaudio *chip, char prof)
	209	{
	210	DE_ACT(("set_professional_spdif %d\n", prof));
	211	if (prof)
	212	chip->comm_page->flags \|=
e930e995	213	cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF);
dd7b254d GP	214	else
dd7b254d GP	215	chip->comm_page->flags &=
e930e995	216	~cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF);
dd7b254d GP	217	chip->professional_spdif = prof;
	218	return update_flags(chip);
	219	}
	220