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1156 lines
30 KiB
1156 lines
30 KiB
/**************************************************************************** |
|
|
|
Copyright Echo Digital Audio Corporation (c) 1998 - 2004 |
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All rights reserved |
|
www.echoaudio.com |
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|
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This file is part of Echo Digital Audio's generic driver library. |
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|
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Echo Digital Audio's generic driver library is free software; |
|
you can redistribute it and/or modify it under the terms of |
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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. |
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|
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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, |
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MA 02111-1307, USA. |
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|
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************************************************************************* |
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|
|
Translation from C++ and adaptation for use in ALSA-Driver |
|
were made by Giuliano Pochini <[email protected]> |
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|
|
****************************************************************************/ |
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|
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#if PAGE_SIZE < 4096 |
|
#error PAGE_SIZE is < 4k |
|
#endif |
|
|
|
static int restore_dsp_rettings(struct echoaudio *chip); |
|
|
|
|
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/* Some vector commands involve the DSP reading or writing data to and from the |
|
comm page; if you send one of these commands to the DSP, it will complete the |
|
command and then write a non-zero value to the Handshake field in the |
|
comm page. This function waits for the handshake to show up. */ |
|
static int wait_handshake(struct echoaudio *chip) |
|
{ |
|
int i; |
|
|
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/* Wait up to 20ms for the handshake from the DSP */ |
|
for (i = 0; i < HANDSHAKE_TIMEOUT; i++) { |
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/* Look for the handshake value */ |
|
barrier(); |
|
if (chip->comm_page->handshake) { |
|
return 0; |
|
} |
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udelay(1); |
|
} |
|
|
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dev_err(chip->card->dev, "wait_handshake(): Timeout waiting for DSP\n"); |
|
return -EBUSY; |
|
} |
|
|
|
|
|
|
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/* Much of the interaction between the DSP and the driver is done via vector |
|
commands; send_vector writes a vector command to the DSP. Typically, this |
|
causes the DSP to read or write fields in the comm page. |
|
PCI posting is not required thanks to the handshake logic. */ |
|
static int send_vector(struct echoaudio *chip, u32 command) |
|
{ |
|
int i; |
|
|
|
wmb(); /* Flush all pending writes before sending the command */ |
|
|
|
/* Wait up to 100ms for the "vector busy" bit to be off */ |
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for (i = 0; i < VECTOR_BUSY_TIMEOUT; i++) { |
|
if (!(get_dsp_register(chip, CHI32_VECTOR_REG) & |
|
CHI32_VECTOR_BUSY)) { |
|
set_dsp_register(chip, CHI32_VECTOR_REG, command); |
|
/*if (i) DE_ACT(("send_vector time: %d\n", i));*/ |
|
return 0; |
|
} |
|
udelay(1); |
|
} |
|
|
|
dev_err(chip->card->dev, "timeout on send_vector\n"); |
|
return -EBUSY; |
|
} |
|
|
|
|
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|
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/* write_dsp writes a 32-bit value to the DSP; this is used almost |
|
exclusively for loading the DSP. */ |
|
static int write_dsp(struct echoaudio *chip, u32 data) |
|
{ |
|
u32 status, i; |
|
|
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for (i = 0; i < 10000000; i++) { /* timeout = 10s */ |
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status = get_dsp_register(chip, CHI32_STATUS_REG); |
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if ((status & CHI32_STATUS_HOST_WRITE_EMPTY) != 0) { |
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set_dsp_register(chip, CHI32_DATA_REG, data); |
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wmb(); /* write it immediately */ |
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return 0; |
|
} |
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udelay(1); |
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cond_resched(); |
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} |
|
|
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chip->bad_board = true; /* Set true until DSP re-loaded */ |
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dev_dbg(chip->card->dev, "write_dsp: Set bad_board to true\n"); |
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return -EIO; |
|
} |
|
|
|
|
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|
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/* read_dsp reads a 32-bit value from the DSP; this is used almost |
|
exclusively for loading the DSP and checking the status of the ASIC. */ |
|
static int read_dsp(struct echoaudio *chip, u32 *data) |
|
{ |
|
u32 status, i; |
|
|
|
for (i = 0; i < READ_DSP_TIMEOUT; i++) { |
|
status = get_dsp_register(chip, CHI32_STATUS_REG); |
|
if ((status & CHI32_STATUS_HOST_READ_FULL) != 0) { |
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*data = get_dsp_register(chip, CHI32_DATA_REG); |
|
return 0; |
|
} |
|
udelay(1); |
|
cond_resched(); |
|
} |
|
|
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chip->bad_board = true; /* Set true until DSP re-loaded */ |
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dev_err(chip->card->dev, "read_dsp: Set bad_board to true\n"); |
|
return -EIO; |
|
} |
|
|
|
|
|
|
|
/**************************************************************************** |
|
Firmware loading functions |
|
****************************************************************************/ |
|
|
|
/* This function is used to read back the serial number from the DSP; |
|
this is triggered by the SET_COMMPAGE_ADDR command. |
|
Only some early Echogals products have serial numbers in the ROM; |
|
the serial number is not used, but you still need to do this as |
|
part of the DSP load process. */ |
|
static int read_sn(struct echoaudio *chip) |
|
{ |
|
int i; |
|
u32 sn[6]; |
|
|
|
for (i = 0; i < 5; i++) { |
|
if (read_dsp(chip, &sn[i])) { |
|
dev_err(chip->card->dev, |
|
"Failed to read serial number\n"); |
|
return -EIO; |
|
} |
|
} |
|
dev_dbg(chip->card->dev, |
|
"Read serial number %08x %08x %08x %08x %08x\n", |
|
sn[0], sn[1], sn[2], sn[3], sn[4]); |
|
return 0; |
|
} |
|
|
|
|
|
|
|
#ifndef ECHOCARD_HAS_ASIC |
|
/* This card has no ASIC, just return ok */ |
|
static inline int check_asic_status(struct echoaudio *chip) |
|
{ |
|
chip->asic_loaded = true; |
|
return 0; |
|
} |
|
|
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#endif /* !ECHOCARD_HAS_ASIC */ |
|
|
|
|
|
|
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#ifdef ECHOCARD_HAS_ASIC |
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|
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/* Load ASIC code - done after the DSP is loaded */ |
|
static int load_asic_generic(struct echoaudio *chip, u32 cmd, short asic) |
|
{ |
|
const struct firmware *fw; |
|
int err; |
|
u32 i, size; |
|
u8 *code; |
|
|
|
err = get_firmware(&fw, chip, asic); |
|
if (err < 0) { |
|
dev_warn(chip->card->dev, "Firmware not found !\n"); |
|
return err; |
|
} |
|
|
|
code = (u8 *)fw->data; |
|
size = fw->size; |
|
|
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/* Send the "Here comes the ASIC" command */ |
|
if (write_dsp(chip, cmd) < 0) |
|
goto la_error; |
|
|
|
/* Write length of ASIC file in bytes */ |
|
if (write_dsp(chip, size) < 0) |
|
goto la_error; |
|
|
|
for (i = 0; i < size; i++) { |
|
if (write_dsp(chip, code[i]) < 0) |
|
goto la_error; |
|
} |
|
|
|
free_firmware(fw, chip); |
|
return 0; |
|
|
|
la_error: |
|
dev_err(chip->card->dev, "failed on write_dsp\n"); |
|
free_firmware(fw, chip); |
|
return -EIO; |
|
} |
|
|
|
#endif /* ECHOCARD_HAS_ASIC */ |
|
|
|
|
|
|
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#ifdef DSP_56361 |
|
|
|
/* Install the resident loader for 56361 DSPs; The resident loader is on |
|
the EPROM on the board for 56301 DSP. The resident loader is a tiny little |
|
program that is used to load the real DSP code. */ |
|
static int install_resident_loader(struct echoaudio *chip) |
|
{ |
|
u32 address; |
|
int index, words, i; |
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u16 *code; |
|
u32 status; |
|
const struct firmware *fw; |
|
|
|
/* 56361 cards only! This check is required by the old 56301-based |
|
Mona and Gina24 */ |
|
if (chip->device_id != DEVICE_ID_56361) |
|
return 0; |
|
|
|
/* Look to see if the resident loader is present. If the resident |
|
loader is already installed, host flag 5 will be on. */ |
|
status = get_dsp_register(chip, CHI32_STATUS_REG); |
|
if (status & CHI32_STATUS_REG_HF5) { |
|
dev_dbg(chip->card->dev, |
|
"Resident loader already installed; status is 0x%x\n", |
|
status); |
|
return 0; |
|
} |
|
|
|
i = get_firmware(&fw, chip, FW_361_LOADER); |
|
if (i < 0) { |
|
dev_warn(chip->card->dev, "Firmware not found !\n"); |
|
return i; |
|
} |
|
|
|
/* The DSP code is an array of 16 bit words. The array is divided up |
|
into sections. The first word of each section is the size in words, |
|
followed by the section type. |
|
Since DSP addresses and data are 24 bits wide, they each take up two |
|
16 bit words in the array. |
|
This is a lot like the other loader loop, but it's not a loop, you |
|
don't write the memory type, and you don't write a zero at the end. */ |
|
|
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/* Set DSP format bits for 24 bit mode */ |
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set_dsp_register(chip, CHI32_CONTROL_REG, |
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get_dsp_register(chip, CHI32_CONTROL_REG) | 0x900); |
|
|
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code = (u16 *)fw->data; |
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|
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/* Skip the header section; the first word in the array is the size |
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of the first section, so the first real section of code is pointed |
|
to by Code[0]. */ |
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index = code[0]; |
|
|
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/* Skip the section size, LRS block type, and DSP memory type */ |
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index += 3; |
|
|
|
/* Get the number of DSP words to write */ |
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words = code[index++]; |
|
|
|
/* Get the DSP address for this block; 24 bits, so build from two words */ |
|
address = ((u32)code[index] << 16) + code[index + 1]; |
|
index += 2; |
|
|
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/* Write the count to the DSP */ |
|
if (write_dsp(chip, words)) { |
|
dev_err(chip->card->dev, |
|
"install_resident_loader: Failed to write word count!\n"); |
|
goto irl_error; |
|
} |
|
/* Write the DSP address */ |
|
if (write_dsp(chip, address)) { |
|
dev_err(chip->card->dev, |
|
"install_resident_loader: Failed to write DSP address!\n"); |
|
goto irl_error; |
|
} |
|
/* Write out this block of code to the DSP */ |
|
for (i = 0; i < words; i++) { |
|
u32 data; |
|
|
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data = ((u32)code[index] << 16) + code[index + 1]; |
|
if (write_dsp(chip, data)) { |
|
dev_err(chip->card->dev, |
|
"install_resident_loader: Failed to write DSP code\n"); |
|
goto irl_error; |
|
} |
|
index += 2; |
|
} |
|
|
|
/* Wait for flag 5 to come up */ |
|
for (i = 0; i < 200; i++) { /* Timeout is 50us * 200 = 10ms */ |
|
udelay(50); |
|
status = get_dsp_register(chip, CHI32_STATUS_REG); |
|
if (status & CHI32_STATUS_REG_HF5) |
|
break; |
|
} |
|
|
|
if (i == 200) { |
|
dev_err(chip->card->dev, "Resident loader failed to set HF5\n"); |
|
goto irl_error; |
|
} |
|
|
|
dev_dbg(chip->card->dev, "Resident loader successfully installed\n"); |
|
free_firmware(fw, chip); |
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return 0; |
|
|
|
irl_error: |
|
free_firmware(fw, chip); |
|
return -EIO; |
|
} |
|
|
|
#endif /* DSP_56361 */ |
|
|
|
|
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static int load_dsp(struct echoaudio *chip, u16 *code) |
|
{ |
|
u32 address, data; |
|
int index, words, i; |
|
|
|
if (chip->dsp_code == code) { |
|
dev_warn(chip->card->dev, "DSP is already loaded!\n"); |
|
return 0; |
|
} |
|
chip->bad_board = true; /* Set true until DSP loaded */ |
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chip->dsp_code = NULL; /* Current DSP code not loaded */ |
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chip->asic_loaded = false; /* Loading the DSP code will reset the ASIC */ |
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|
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dev_dbg(chip->card->dev, "load_dsp: Set bad_board to true\n"); |
|
|
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/* If this board requires a resident loader, install it. */ |
|
#ifdef DSP_56361 |
|
i = install_resident_loader(chip); |
|
if (i < 0) |
|
return i; |
|
#endif |
|
|
|
/* Send software reset command */ |
|
if (send_vector(chip, DSP_VC_RESET) < 0) { |
|
dev_err(chip->card->dev, |
|
"LoadDsp: send_vector DSP_VC_RESET failed, Critical Failure\n"); |
|
return -EIO; |
|
} |
|
/* Delay 10us */ |
|
udelay(10); |
|
|
|
/* Wait 10ms for HF3 to indicate that software reset is complete */ |
|
for (i = 0; i < 1000; i++) { /* Timeout is 10us * 1000 = 10ms */ |
|
if (get_dsp_register(chip, CHI32_STATUS_REG) & |
|
CHI32_STATUS_REG_HF3) |
|
break; |
|
udelay(10); |
|
} |
|
|
|
if (i == 1000) { |
|
dev_err(chip->card->dev, |
|
"load_dsp: Timeout waiting for CHI32_STATUS_REG_HF3\n"); |
|
return -EIO; |
|
} |
|
|
|
/* Set DSP format bits for 24 bit mode now that soft reset is done */ |
|
set_dsp_register(chip, CHI32_CONTROL_REG, |
|
get_dsp_register(chip, CHI32_CONTROL_REG) | 0x900); |
|
|
|
/* Main loader loop */ |
|
|
|
index = code[0]; |
|
for (;;) { |
|
int block_type, mem_type; |
|
|
|
/* Total Block Size */ |
|
index++; |
|
|
|
/* Block Type */ |
|
block_type = code[index]; |
|
if (block_type == 4) /* We're finished */ |
|
break; |
|
|
|
index++; |
|
|
|
/* Memory Type P=0,X=1,Y=2 */ |
|
mem_type = code[index++]; |
|
|
|
/* Block Code Size */ |
|
words = code[index++]; |
|
if (words == 0) /* We're finished */ |
|
break; |
|
|
|
/* Start Address */ |
|
address = ((u32)code[index] << 16) + code[index + 1]; |
|
index += 2; |
|
|
|
if (write_dsp(chip, words) < 0) { |
|
dev_err(chip->card->dev, |
|
"load_dsp: failed to write number of DSP words\n"); |
|
return -EIO; |
|
} |
|
if (write_dsp(chip, address) < 0) { |
|
dev_err(chip->card->dev, |
|
"load_dsp: failed to write DSP address\n"); |
|
return -EIO; |
|
} |
|
if (write_dsp(chip, mem_type) < 0) { |
|
dev_err(chip->card->dev, |
|
"load_dsp: failed to write DSP memory type\n"); |
|
return -EIO; |
|
} |
|
/* Code */ |
|
for (i = 0; i < words; i++, index+=2) { |
|
data = ((u32)code[index] << 16) + code[index + 1]; |
|
if (write_dsp(chip, data) < 0) { |
|
dev_err(chip->card->dev, |
|
"load_dsp: failed to write DSP data\n"); |
|
return -EIO; |
|
} |
|
} |
|
} |
|
|
|
if (write_dsp(chip, 0) < 0) { /* We're done!!! */ |
|
dev_err(chip->card->dev, |
|
"load_dsp: Failed to write final zero\n"); |
|
return -EIO; |
|
} |
|
udelay(10); |
|
|
|
for (i = 0; i < 5000; i++) { /* Timeout is 100us * 5000 = 500ms */ |
|
/* Wait for flag 4 - indicates that the DSP loaded OK */ |
|
if (get_dsp_register(chip, CHI32_STATUS_REG) & |
|
CHI32_STATUS_REG_HF4) { |
|
set_dsp_register(chip, CHI32_CONTROL_REG, |
|
get_dsp_register(chip, CHI32_CONTROL_REG) & ~0x1b00); |
|
|
|
if (write_dsp(chip, DSP_FNC_SET_COMMPAGE_ADDR) < 0) { |
|
dev_err(chip->card->dev, |
|
"load_dsp: Failed to write DSP_FNC_SET_COMMPAGE_ADDR\n"); |
|
return -EIO; |
|
} |
|
|
|
if (write_dsp(chip, chip->comm_page_phys) < 0) { |
|
dev_err(chip->card->dev, |
|
"load_dsp: Failed to write comm page address\n"); |
|
return -EIO; |
|
} |
|
|
|
/* Get the serial number via slave mode. |
|
This is triggered by the SET_COMMPAGE_ADDR command. |
|
We don't actually use the serial number but we have to |
|
get it as part of the DSP init voodoo. */ |
|
if (read_sn(chip) < 0) { |
|
dev_err(chip->card->dev, |
|
"load_dsp: Failed to read serial number\n"); |
|
return -EIO; |
|
} |
|
|
|
chip->dsp_code = code; /* Show which DSP code loaded */ |
|
chip->bad_board = false; /* DSP OK */ |
|
return 0; |
|
} |
|
udelay(100); |
|
} |
|
|
|
dev_err(chip->card->dev, |
|
"load_dsp: DSP load timed out waiting for HF4\n"); |
|
return -EIO; |
|
} |
|
|
|
|
|
|
|
/* load_firmware takes care of loading the DSP and any ASIC code. */ |
|
static int load_firmware(struct echoaudio *chip) |
|
{ |
|
const struct firmware *fw; |
|
int box_type, err; |
|
|
|
if (snd_BUG_ON(!chip->comm_page)) |
|
return -EPERM; |
|
|
|
/* See if the ASIC is present and working - only if the DSP is already loaded */ |
|
if (chip->dsp_code) { |
|
box_type = check_asic_status(chip); |
|
if (box_type >= 0) |
|
return box_type; |
|
/* ASIC check failed; force the DSP to reload */ |
|
chip->dsp_code = NULL; |
|
} |
|
|
|
err = get_firmware(&fw, chip, chip->dsp_code_to_load); |
|
if (err < 0) |
|
return err; |
|
err = load_dsp(chip, (u16 *)fw->data); |
|
free_firmware(fw, chip); |
|
if (err < 0) |
|
return err; |
|
|
|
box_type = load_asic(chip); |
|
if (box_type < 0) |
|
return box_type; /* error */ |
|
|
|
return box_type; |
|
} |
|
|
|
|
|
|
|
/**************************************************************************** |
|
Mixer functions |
|
****************************************************************************/ |
|
|
|
#if defined(ECHOCARD_HAS_INPUT_NOMINAL_LEVEL) || \ |
|
defined(ECHOCARD_HAS_OUTPUT_NOMINAL_LEVEL) |
|
|
|
/* Set the nominal level for an input or output bus (true = -10dBV, false = +4dBu) */ |
|
static int set_nominal_level(struct echoaudio *chip, u16 index, char consumer) |
|
{ |
|
if (snd_BUG_ON(index >= num_busses_out(chip) + num_busses_in(chip))) |
|
return -EINVAL; |
|
|
|
/* Wait for the handshake (OK even if ASIC is not loaded) */ |
|
if (wait_handshake(chip)) |
|
return -EIO; |
|
|
|
chip->nominal_level[index] = consumer; |
|
|
|
if (consumer) |
|
chip->comm_page->nominal_level_mask |= cpu_to_le32(1 << index); |
|
else |
|
chip->comm_page->nominal_level_mask &= ~cpu_to_le32(1 << index); |
|
|
|
return 0; |
|
} |
|
|
|
#endif /* ECHOCARD_HAS_*_NOMINAL_LEVEL */ |
|
|
|
|
|
|
|
/* Set the gain for a single physical output channel (dB). */ |
|
static int set_output_gain(struct echoaudio *chip, u16 channel, s8 gain) |
|
{ |
|
if (snd_BUG_ON(channel >= num_busses_out(chip))) |
|
return -EINVAL; |
|
|
|
if (wait_handshake(chip)) |
|
return -EIO; |
|
|
|
/* Save the new value */ |
|
chip->output_gain[channel] = gain; |
|
chip->comm_page->line_out_level[channel] = gain; |
|
return 0; |
|
} |
|
|
|
|
|
|
|
#ifdef ECHOCARD_HAS_MONITOR |
|
/* Set the monitor level from an input bus to an output bus. */ |
|
static int set_monitor_gain(struct echoaudio *chip, u16 output, u16 input, |
|
s8 gain) |
|
{ |
|
if (snd_BUG_ON(output >= num_busses_out(chip) || |
|
input >= num_busses_in(chip))) |
|
return -EINVAL; |
|
|
|
if (wait_handshake(chip)) |
|
return -EIO; |
|
|
|
chip->monitor_gain[output][input] = gain; |
|
chip->comm_page->monitors[monitor_index(chip, output, input)] = gain; |
|
return 0; |
|
} |
|
#endif /* ECHOCARD_HAS_MONITOR */ |
|
|
|
|
|
/* Tell the DSP to read and update output, nominal & monitor levels in comm page. */ |
|
static int update_output_line_level(struct echoaudio *chip) |
|
{ |
|
if (wait_handshake(chip)) |
|
return -EIO; |
|
clear_handshake(chip); |
|
return send_vector(chip, DSP_VC_UPDATE_OUTVOL); |
|
} |
|
|
|
|
|
|
|
/* Tell the DSP to read and update input levels in comm page */ |
|
static int update_input_line_level(struct echoaudio *chip) |
|
{ |
|
if (wait_handshake(chip)) |
|
return -EIO; |
|
clear_handshake(chip); |
|
return send_vector(chip, DSP_VC_UPDATE_INGAIN); |
|
} |
|
|
|
|
|
|
|
/* set_meters_on turns the meters on or off. If meters are turned on, the DSP |
|
will write the meter and clock detect values to the comm page at about 30Hz */ |
|
static void set_meters_on(struct echoaudio *chip, char on) |
|
{ |
|
if (on && !chip->meters_enabled) { |
|
send_vector(chip, DSP_VC_METERS_ON); |
|
chip->meters_enabled = 1; |
|
} else if (!on && chip->meters_enabled) { |
|
send_vector(chip, DSP_VC_METERS_OFF); |
|
chip->meters_enabled = 0; |
|
memset((s8 *)chip->comm_page->vu_meter, ECHOGAIN_MUTED, |
|
DSP_MAXPIPES); |
|
memset((s8 *)chip->comm_page->peak_meter, ECHOGAIN_MUTED, |
|
DSP_MAXPIPES); |
|
} |
|
} |
|
|
|
|
|
|
|
/* Fill out an the given array using the current values in the comm page. |
|
Meters are written in the comm page by the DSP in this order: |
|
Output busses |
|
Input busses |
|
Output pipes (vmixer cards only) |
|
|
|
This function assumes there are no more than 16 in/out busses or pipes |
|
Meters is an array [3][16][2] of long. */ |
|
static void get_audio_meters(struct echoaudio *chip, long *meters) |
|
{ |
|
unsigned int i, m, n; |
|
|
|
for (i = 0 ; i < 96; i++) |
|
meters[i] = 0; |
|
|
|
for (m = 0, n = 0, i = 0; i < num_busses_out(chip); i++, m++) { |
|
meters[n++] = chip->comm_page->vu_meter[m]; |
|
meters[n++] = chip->comm_page->peak_meter[m]; |
|
} |
|
|
|
#ifdef ECHOCARD_ECHO3G |
|
m = E3G_MAX_OUTPUTS; /* Skip unused meters */ |
|
#endif |
|
|
|
for (n = 32, i = 0; i < num_busses_in(chip); i++, m++) { |
|
meters[n++] = chip->comm_page->vu_meter[m]; |
|
meters[n++] = chip->comm_page->peak_meter[m]; |
|
} |
|
#ifdef ECHOCARD_HAS_VMIXER |
|
for (n = 64, i = 0; i < num_pipes_out(chip); i++, m++) { |
|
meters[n++] = chip->comm_page->vu_meter[m]; |
|
meters[n++] = chip->comm_page->peak_meter[m]; |
|
} |
|
#endif |
|
} |
|
|
|
|
|
|
|
static int restore_dsp_rettings(struct echoaudio *chip) |
|
{ |
|
int i, o, err; |
|
|
|
err = check_asic_status(chip); |
|
if (err < 0) |
|
return err; |
|
|
|
/* Gina20/Darla20 only. Should be harmless for other cards. */ |
|
chip->comm_page->gd_clock_state = GD_CLOCK_UNDEF; |
|
chip->comm_page->gd_spdif_status = GD_SPDIF_STATUS_UNDEF; |
|
chip->comm_page->handshake = cpu_to_le32(0xffffffff); |
|
|
|
/* Restore output busses */ |
|
for (i = 0; i < num_busses_out(chip); i++) { |
|
err = set_output_gain(chip, i, chip->output_gain[i]); |
|
if (err < 0) |
|
return err; |
|
} |
|
|
|
#ifdef ECHOCARD_HAS_VMIXER |
|
for (i = 0; i < num_pipes_out(chip); i++) |
|
for (o = 0; o < num_busses_out(chip); o++) { |
|
err = set_vmixer_gain(chip, o, i, |
|
chip->vmixer_gain[o][i]); |
|
if (err < 0) |
|
return err; |
|
} |
|
if (update_vmixer_level(chip) < 0) |
|
return -EIO; |
|
#endif /* ECHOCARD_HAS_VMIXER */ |
|
|
|
#ifdef ECHOCARD_HAS_MONITOR |
|
for (o = 0; o < num_busses_out(chip); o++) |
|
for (i = 0; i < num_busses_in(chip); i++) { |
|
err = set_monitor_gain(chip, o, i, |
|
chip->monitor_gain[o][i]); |
|
if (err < 0) |
|
return err; |
|
} |
|
#endif /* ECHOCARD_HAS_MONITOR */ |
|
|
|
#ifdef ECHOCARD_HAS_INPUT_GAIN |
|
for (i = 0; i < num_busses_in(chip); i++) { |
|
err = set_input_gain(chip, i, chip->input_gain[i]); |
|
if (err < 0) |
|
return err; |
|
} |
|
#endif /* ECHOCARD_HAS_INPUT_GAIN */ |
|
|
|
err = update_output_line_level(chip); |
|
if (err < 0) |
|
return err; |
|
|
|
err = update_input_line_level(chip); |
|
if (err < 0) |
|
return err; |
|
|
|
err = set_sample_rate(chip, chip->sample_rate); |
|
if (err < 0) |
|
return err; |
|
|
|
if (chip->meters_enabled) { |
|
err = send_vector(chip, DSP_VC_METERS_ON); |
|
if (err < 0) |
|
return err; |
|
} |
|
|
|
#ifdef ECHOCARD_HAS_DIGITAL_MODE_SWITCH |
|
if (set_digital_mode(chip, chip->digital_mode) < 0) |
|
return -EIO; |
|
#endif |
|
|
|
#ifdef ECHOCARD_HAS_DIGITAL_IO |
|
if (set_professional_spdif(chip, chip->professional_spdif) < 0) |
|
return -EIO; |
|
#endif |
|
|
|
#ifdef ECHOCARD_HAS_PHANTOM_POWER |
|
if (set_phantom_power(chip, chip->phantom_power) < 0) |
|
return -EIO; |
|
#endif |
|
|
|
#ifdef ECHOCARD_HAS_EXTERNAL_CLOCK |
|
/* set_input_clock() also restores automute setting */ |
|
if (set_input_clock(chip, chip->input_clock) < 0) |
|
return -EIO; |
|
#endif |
|
|
|
#ifdef ECHOCARD_HAS_OUTPUT_CLOCK_SWITCH |
|
if (set_output_clock(chip, chip->output_clock) < 0) |
|
return -EIO; |
|
#endif |
|
|
|
if (wait_handshake(chip) < 0) |
|
return -EIO; |
|
clear_handshake(chip); |
|
if (send_vector(chip, DSP_VC_UPDATE_FLAGS) < 0) |
|
return -EIO; |
|
|
|
return 0; |
|
} |
|
|
|
|
|
|
|
/**************************************************************************** |
|
Transport functions |
|
****************************************************************************/ |
|
|
|
/* set_audio_format() sets the format of the audio data in host memory for |
|
this pipe. Note that _MS_ (mono-to-stereo) playback modes are not used by ALSA |
|
but they are here because they are just mono while capturing */ |
|
static void set_audio_format(struct echoaudio *chip, u16 pipe_index, |
|
const struct audioformat *format) |
|
{ |
|
u16 dsp_format; |
|
|
|
dsp_format = DSP_AUDIOFORM_SS_16LE; |
|
|
|
/* Look for super-interleave (no big-endian and 8 bits) */ |
|
if (format->interleave > 2) { |
|
switch (format->bits_per_sample) { |
|
case 16: |
|
dsp_format = DSP_AUDIOFORM_SUPER_INTERLEAVE_16LE; |
|
break; |
|
case 24: |
|
dsp_format = DSP_AUDIOFORM_SUPER_INTERLEAVE_24LE; |
|
break; |
|
case 32: |
|
dsp_format = DSP_AUDIOFORM_SUPER_INTERLEAVE_32LE; |
|
break; |
|
} |
|
dsp_format |= format->interleave; |
|
} else if (format->data_are_bigendian) { |
|
/* For big-endian data, only 32 bit samples are supported */ |
|
switch (format->interleave) { |
|
case 1: |
|
dsp_format = DSP_AUDIOFORM_MM_32BE; |
|
break; |
|
#ifdef ECHOCARD_HAS_STEREO_BIG_ENDIAN32 |
|
case 2: |
|
dsp_format = DSP_AUDIOFORM_SS_32BE; |
|
break; |
|
#endif |
|
} |
|
} else if (format->interleave == 1 && |
|
format->bits_per_sample == 32 && !format->mono_to_stereo) { |
|
/* 32 bit little-endian mono->mono case */ |
|
dsp_format = DSP_AUDIOFORM_MM_32LE; |
|
} else { |
|
/* Handle the other little-endian formats */ |
|
switch (format->bits_per_sample) { |
|
case 8: |
|
if (format->interleave == 2) |
|
dsp_format = DSP_AUDIOFORM_SS_8; |
|
else |
|
dsp_format = DSP_AUDIOFORM_MS_8; |
|
break; |
|
default: |
|
case 16: |
|
if (format->interleave == 2) |
|
dsp_format = DSP_AUDIOFORM_SS_16LE; |
|
else |
|
dsp_format = DSP_AUDIOFORM_MS_16LE; |
|
break; |
|
case 24: |
|
if (format->interleave == 2) |
|
dsp_format = DSP_AUDIOFORM_SS_24LE; |
|
else |
|
dsp_format = DSP_AUDIOFORM_MS_24LE; |
|
break; |
|
case 32: |
|
if (format->interleave == 2) |
|
dsp_format = DSP_AUDIOFORM_SS_32LE; |
|
else |
|
dsp_format = DSP_AUDIOFORM_MS_32LE; |
|
break; |
|
} |
|
} |
|
dev_dbg(chip->card->dev, |
|
"set_audio_format[%d] = %x\n", pipe_index, dsp_format); |
|
chip->comm_page->audio_format[pipe_index] = cpu_to_le16(dsp_format); |
|
} |
|
|
|
|
|
|
|
/* start_transport starts transport for a set of pipes. |
|
The bits 1 in channel_mask specify what pipes to start. Only the bit of the |
|
first channel must be set, regardless its interleave. |
|
Same thing for pause_ and stop_ -trasport below. */ |
|
static int start_transport(struct echoaudio *chip, u32 channel_mask, |
|
u32 cyclic_mask) |
|
{ |
|
|
|
if (wait_handshake(chip)) |
|
return -EIO; |
|
|
|
chip->comm_page->cmd_start |= cpu_to_le32(channel_mask); |
|
|
|
if (chip->comm_page->cmd_start) { |
|
clear_handshake(chip); |
|
send_vector(chip, DSP_VC_START_TRANSFER); |
|
if (wait_handshake(chip)) |
|
return -EIO; |
|
/* Keep track of which pipes are transporting */ |
|
chip->active_mask |= channel_mask; |
|
chip->comm_page->cmd_start = 0; |
|
return 0; |
|
} |
|
|
|
dev_err(chip->card->dev, "start_transport: No pipes to start!\n"); |
|
return -EINVAL; |
|
} |
|
|
|
|
|
|
|
static int pause_transport(struct echoaudio *chip, u32 channel_mask) |
|
{ |
|
|
|
if (wait_handshake(chip)) |
|
return -EIO; |
|
|
|
chip->comm_page->cmd_stop |= cpu_to_le32(channel_mask); |
|
chip->comm_page->cmd_reset = 0; |
|
if (chip->comm_page->cmd_stop) { |
|
clear_handshake(chip); |
|
send_vector(chip, DSP_VC_STOP_TRANSFER); |
|
if (wait_handshake(chip)) |
|
return -EIO; |
|
/* Keep track of which pipes are transporting */ |
|
chip->active_mask &= ~channel_mask; |
|
chip->comm_page->cmd_stop = 0; |
|
chip->comm_page->cmd_reset = 0; |
|
return 0; |
|
} |
|
|
|
dev_dbg(chip->card->dev, "pause_transport: No pipes to stop!\n"); |
|
return 0; |
|
} |
|
|
|
|
|
|
|
static int stop_transport(struct echoaudio *chip, u32 channel_mask) |
|
{ |
|
|
|
if (wait_handshake(chip)) |
|
return -EIO; |
|
|
|
chip->comm_page->cmd_stop |= cpu_to_le32(channel_mask); |
|
chip->comm_page->cmd_reset |= cpu_to_le32(channel_mask); |
|
if (chip->comm_page->cmd_reset) { |
|
clear_handshake(chip); |
|
send_vector(chip, DSP_VC_STOP_TRANSFER); |
|
if (wait_handshake(chip)) |
|
return -EIO; |
|
/* Keep track of which pipes are transporting */ |
|
chip->active_mask &= ~channel_mask; |
|
chip->comm_page->cmd_stop = 0; |
|
chip->comm_page->cmd_reset = 0; |
|
return 0; |
|
} |
|
|
|
dev_dbg(chip->card->dev, "stop_transport: No pipes to stop!\n"); |
|
return 0; |
|
} |
|
|
|
|
|
|
|
static inline int is_pipe_allocated(struct echoaudio *chip, u16 pipe_index) |
|
{ |
|
return (chip->pipe_alloc_mask & (1 << pipe_index)); |
|
} |
|
|
|
|
|
|
|
/* Stops everything and turns off the DSP. All pipes should be already |
|
stopped and unallocated. */ |
|
static int rest_in_peace(struct echoaudio *chip) |
|
{ |
|
|
|
/* Stops all active pipes (just to be sure) */ |
|
stop_transport(chip, chip->active_mask); |
|
|
|
set_meters_on(chip, false); |
|
|
|
#ifdef ECHOCARD_HAS_MIDI |
|
enable_midi_input(chip, false); |
|
#endif |
|
|
|
/* Go to sleep */ |
|
if (chip->dsp_code) { |
|
/* Make load_firmware do a complete reload */ |
|
chip->dsp_code = NULL; |
|
/* Put the DSP to sleep */ |
|
return send_vector(chip, DSP_VC_GO_COMATOSE); |
|
} |
|
return 0; |
|
} |
|
|
|
|
|
|
|
/* Fills the comm page with default values */ |
|
static int init_dsp_comm_page(struct echoaudio *chip) |
|
{ |
|
/* Check if the compiler added extra padding inside the structure */ |
|
if (offsetof(struct comm_page, midi_output) != 0xbe0) { |
|
dev_err(chip->card->dev, |
|
"init_dsp_comm_page() - Invalid struct comm_page structure\n"); |
|
return -EPERM; |
|
} |
|
|
|
/* Init all the basic stuff */ |
|
chip->card_name = ECHOCARD_NAME; |
|
chip->bad_board = true; /* Set true until DSP loaded */ |
|
chip->dsp_code = NULL; /* Current DSP code not loaded */ |
|
chip->asic_loaded = false; |
|
memset(chip->comm_page, 0, sizeof(struct comm_page)); |
|
|
|
/* Init the comm page */ |
|
chip->comm_page->comm_size = |
|
cpu_to_le32(sizeof(struct comm_page)); |
|
chip->comm_page->handshake = cpu_to_le32(0xffffffff); |
|
chip->comm_page->midi_out_free_count = |
|
cpu_to_le32(DSP_MIDI_OUT_FIFO_SIZE); |
|
chip->comm_page->sample_rate = cpu_to_le32(44100); |
|
|
|
/* Set line levels so we don't blast any inputs on startup */ |
|
memset(chip->comm_page->monitors, ECHOGAIN_MUTED, MONITOR_ARRAY_SIZE); |
|
memset(chip->comm_page->vmixer, ECHOGAIN_MUTED, VMIXER_ARRAY_SIZE); |
|
|
|
return 0; |
|
} |
|
|
|
|
|
|
|
/* This function initializes the chip structure with default values, ie. all |
|
* muted and internal clock source. Then it copies the settings to the DSP. |
|
* This MUST be called after the DSP is up and running ! |
|
*/ |
|
static int init_line_levels(struct echoaudio *chip) |
|
{ |
|
memset(chip->output_gain, ECHOGAIN_MUTED, sizeof(chip->output_gain)); |
|
memset(chip->input_gain, ECHOGAIN_MUTED, sizeof(chip->input_gain)); |
|
memset(chip->monitor_gain, ECHOGAIN_MUTED, sizeof(chip->monitor_gain)); |
|
memset(chip->vmixer_gain, ECHOGAIN_MUTED, sizeof(chip->vmixer_gain)); |
|
chip->input_clock = ECHO_CLOCK_INTERNAL; |
|
chip->output_clock = ECHO_CLOCK_WORD; |
|
chip->sample_rate = 44100; |
|
return restore_dsp_rettings(chip); |
|
} |
|
|
|
|
|
|
|
/* This is low level part of the interrupt handler. |
|
It returns -1 if the IRQ is not ours, or N>=0 if it is, where N is the number |
|
of midi data in the input queue. */ |
|
static int service_irq(struct echoaudio *chip) |
|
{ |
|
int st; |
|
|
|
/* Read the DSP status register and see if this DSP generated this interrupt */ |
|
if (get_dsp_register(chip, CHI32_STATUS_REG) & CHI32_STATUS_IRQ) { |
|
st = 0; |
|
#ifdef ECHOCARD_HAS_MIDI |
|
/* Get and parse midi data if present */ |
|
if (chip->comm_page->midi_input[0]) /* The count is at index 0 */ |
|
st = midi_service_irq(chip); /* Returns how many midi bytes we received */ |
|
#endif |
|
/* Clear the hardware interrupt */ |
|
chip->comm_page->midi_input[0] = 0; |
|
send_vector(chip, DSP_VC_ACK_INT); |
|
return st; |
|
} |
|
return -1; |
|
} |
|
|
|
|
|
|
|
|
|
/****************************************************************************** |
|
Functions for opening and closing pipes |
|
******************************************************************************/ |
|
|
|
/* allocate_pipes is used to reserve audio pipes for your exclusive use. |
|
The call will fail if some pipes are already allocated. */ |
|
static int allocate_pipes(struct echoaudio *chip, struct audiopipe *pipe, |
|
int pipe_index, int interleave) |
|
{ |
|
int i; |
|
u32 channel_mask; |
|
|
|
dev_dbg(chip->card->dev, |
|
"allocate_pipes: ch=%d int=%d\n", pipe_index, interleave); |
|
|
|
if (chip->bad_board) |
|
return -EIO; |
|
|
|
for (channel_mask = i = 0; i < interleave; i++) |
|
channel_mask |= 1 << (pipe_index + i); |
|
if (chip->pipe_alloc_mask & channel_mask) { |
|
dev_err(chip->card->dev, |
|
"allocate_pipes: channel already open\n"); |
|
return -EAGAIN; |
|
} |
|
|
|
chip->comm_page->position[pipe_index] = 0; |
|
chip->pipe_alloc_mask |= channel_mask; |
|
/* This driver uses cyclic buffers only */ |
|
chip->pipe_cyclic_mask |= channel_mask; |
|
pipe->index = pipe_index; |
|
pipe->interleave = interleave; |
|
pipe->state = PIPE_STATE_STOPPED; |
|
|
|
/* The counter register is where the DSP writes the 32 bit DMA |
|
position for a pipe. The DSP is constantly updating this value as |
|
it moves data. The DMA counter is in units of bytes, not samples. */ |
|
pipe->dma_counter = (__le32 *)&chip->comm_page->position[pipe_index]; |
|
*pipe->dma_counter = 0; |
|
return pipe_index; |
|
} |
|
|
|
|
|
|
|
static int free_pipes(struct echoaudio *chip, struct audiopipe *pipe) |
|
{ |
|
u32 channel_mask; |
|
int i; |
|
|
|
if (snd_BUG_ON(!is_pipe_allocated(chip, pipe->index))) |
|
return -EINVAL; |
|
if (snd_BUG_ON(pipe->state != PIPE_STATE_STOPPED)) |
|
return -EINVAL; |
|
|
|
for (channel_mask = i = 0; i < pipe->interleave; i++) |
|
channel_mask |= 1 << (pipe->index + i); |
|
|
|
chip->pipe_alloc_mask &= ~channel_mask; |
|
chip->pipe_cyclic_mask &= ~channel_mask; |
|
return 0; |
|
} |
|
|
|
|
|
|
|
/****************************************************************************** |
|
Functions for managing the scatter-gather list |
|
******************************************************************************/ |
|
|
|
static int sglist_init(struct echoaudio *chip, struct audiopipe *pipe) |
|
{ |
|
pipe->sglist_head = 0; |
|
memset(pipe->sgpage.area, 0, PAGE_SIZE); |
|
chip->comm_page->sglist_addr[pipe->index].addr = |
|
cpu_to_le32(pipe->sgpage.addr); |
|
return 0; |
|
} |
|
|
|
|
|
|
|
static int sglist_add_mapping(struct echoaudio *chip, struct audiopipe *pipe, |
|
dma_addr_t address, size_t length) |
|
{ |
|
int head = pipe->sglist_head; |
|
struct sg_entry *list = (struct sg_entry *)pipe->sgpage.area; |
|
|
|
if (head < MAX_SGLIST_ENTRIES - 1) { |
|
list[head].addr = cpu_to_le32(address); |
|
list[head].size = cpu_to_le32(length); |
|
pipe->sglist_head++; |
|
} else { |
|
dev_err(chip->card->dev, "SGlist: too many fragments\n"); |
|
return -ENOMEM; |
|
} |
|
return 0; |
|
} |
|
|
|
|
|
|
|
static inline int sglist_add_irq(struct echoaudio *chip, struct audiopipe *pipe) |
|
{ |
|
return sglist_add_mapping(chip, pipe, 0, 0); |
|
} |
|
|
|
|
|
|
|
static inline int sglist_wrap(struct echoaudio *chip, struct audiopipe *pipe) |
|
{ |
|
return sglist_add_mapping(chip, pipe, pipe->sgpage.addr, 0); |
|
}
|
|
|