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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for Digigram miXart soundcards
*
* DSP firmware management
*
* Copyright (c) 2003 by Digigram <alsa@digigram.com>
*/
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/firmware.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/io.h>
#include <sound/core.h>
#include "mixart.h"
#include "mixart_mixer.h"
#include "mixart_core.h"
#include "mixart_hwdep.h"
/**
* wait for a value on a peudo register, exit with a timeout
*
* @mgr: pointer to miXart manager structure
* @offset: unsigned pseudo_register base + offset of value
* @is_egal: wait for the equal value
* @value: value
* @timeout: timeout in centisenconds
*/
static int mixart_wait_nice_for_register_value(struct mixart_mgr *mgr,
u32 offset, int is_egal,
u32 value, unsigned long timeout)
{
unsigned long end_time = jiffies + (timeout * HZ / 100);
u32 read;
do { /* we may take too long time in this loop.
* so give controls back to kernel if needed.
*/
cond_resched();
read = readl_be( MIXART_MEM( mgr, offset ));
if(is_egal) {
if(read == value) return 0;
}
else { /* wait for different value */
if(read != value) return 0;
}
} while ( time_after_eq(end_time, jiffies) );
return -EBUSY;
}
/*
structures needed to upload elf code packets
*/
struct snd_mixart_elf32_ehdr {
u8 e_ident[16];
__be16 e_type;
__be16 e_machine;
__be32 e_version;
__be32 e_entry;
__be32 e_phoff;
__be32 e_shoff;
__be32 e_flags;
__be16 e_ehsize;
__be16 e_phentsize;
__be16 e_phnum;
__be16 e_shentsize;
__be16 e_shnum;
__be16 e_shstrndx;
};
struct snd_mixart_elf32_phdr {
__be32 p_type;
__be32 p_offset;
__be32 p_vaddr;
__be32 p_paddr;
__be32 p_filesz;
__be32 p_memsz;
__be32 p_flags;
__be32 p_align;
};
static int mixart_load_elf(struct mixart_mgr *mgr, const struct firmware *dsp )
{
char elf32_magic_number[4] = {0x7f,'E','L','F'};
struct snd_mixart_elf32_ehdr *elf_header;
int i;
elf_header = (struct snd_mixart_elf32_ehdr *)dsp->data;
for( i=0; i<4; i++ )
if ( elf32_magic_number[i] != elf_header->e_ident[i] )
return -EINVAL;
if( elf_header->e_phoff != 0 ) {
struct snd_mixart_elf32_phdr elf_programheader;
for( i=0; i < be16_to_cpu(elf_header->e_phnum); i++ ) {
u32 pos = be32_to_cpu(elf_header->e_phoff) + (u32)(i * be16_to_cpu(elf_header->e_phentsize));
memcpy( &elf_programheader, dsp->data + pos, sizeof(elf_programheader) );
if(elf_programheader.p_type != 0) {
if( elf_programheader.p_filesz != 0 ) {
memcpy_toio( MIXART_MEM( mgr, be32_to_cpu(elf_programheader.p_vaddr)),
dsp->data + be32_to_cpu( elf_programheader.p_offset ),
be32_to_cpu( elf_programheader.p_filesz ));
}
}
}
}
return 0;
}
/*
* get basic information and init miXart
*/
/* audio IDs for request to the board */
#define MIXART_FIRST_ANA_AUDIO_ID 0
#define MIXART_FIRST_DIG_AUDIO_ID 8
static int mixart_enum_connectors(struct mixart_mgr *mgr)
{
u32 k;
int err;
struct mixart_msg request;
struct mixart_enum_connector_resp *connector;
struct mixart_audio_info_req *audio_info_req;
struct mixart_audio_info_resp *audio_info;
connector = kmalloc(sizeof(*connector), GFP_KERNEL);
audio_info_req = kmalloc(sizeof(*audio_info_req), GFP_KERNEL);
audio_info = kmalloc(sizeof(*audio_info), GFP_KERNEL);
if (! connector || ! audio_info_req || ! audio_info) {
err = -ENOMEM;
goto __error;
}
audio_info_req->line_max_level = MIXART_FLOAT_P_22_0_TO_HEX;
audio_info_req->micro_max_level = MIXART_FLOAT_M_20_0_TO_HEX;
audio_info_req->cd_max_level = MIXART_FLOAT____0_0_TO_HEX;
request.message_id = MSG_SYSTEM_ENUM_PLAY_CONNECTOR;
request.uid = (struct mixart_uid){0,0}; /* board num = 0 */
request.data = NULL;
request.size = 0;
err = snd_mixart_send_msg(mgr, &request, sizeof(*connector), connector);
if((err < 0) || (connector->error_code) || (connector->uid_count > MIXART_MAX_PHYS_CONNECTORS)) {
dev_err(&mgr->pci->dev,
"error MSG_SYSTEM_ENUM_PLAY_CONNECTOR\n");
err = -EINVAL;
goto __error;
}
for(k=0; k < connector->uid_count; k++) {
struct mixart_pipe *pipe;
if(k < MIXART_FIRST_DIG_AUDIO_ID) {
pipe = &mgr->chip[k/2]->pipe_out_ana;
} else {
pipe = &mgr->chip[(k-MIXART_FIRST_DIG_AUDIO_ID)/2]->pipe_out_dig;
}
if(k & 1) {
pipe->uid_right_connector = connector->uid[k]; /* odd */
} else {
pipe->uid_left_connector = connector->uid[k]; /* even */
}
/* dev_dbg(&mgr->pci->dev, "playback connector[%d].object_id = %x\n", k, connector->uid[k].object_id); */
/* TODO: really need send_msg MSG_CONNECTOR_GET_AUDIO_INFO for each connector ? perhaps for analog level caps ? */
request.message_id = MSG_CONNECTOR_GET_AUDIO_INFO;
request.uid = connector->uid[k];
request.data = audio_info_req;
request.size = sizeof(*audio_info_req);
err = snd_mixart_send_msg(mgr, &request, sizeof(*audio_info), audio_info);
if( err < 0 ) {
dev_err(&mgr->pci->dev,
"error MSG_CONNECTOR_GET_AUDIO_INFO\n");
goto __error;
}
/*dev_dbg(&mgr->pci->dev, "play analog_info.analog_level_present = %x\n", audio_info->info.analog_info.analog_level_present);*/
}
request.message_id = MSG_SYSTEM_ENUM_RECORD_CONNECTOR;
request.uid = (struct mixart_uid){0,0}; /* board num = 0 */
request.data = NULL;
request.size = 0;
err = snd_mixart_send_msg(mgr, &request, sizeof(*connector), connector);
if((err < 0) || (connector->error_code) || (connector->uid_count > MIXART_MAX_PHYS_CONNECTORS)) {
dev_err(&mgr->pci->dev,
"error MSG_SYSTEM_ENUM_RECORD_CONNECTOR\n");
err = -EINVAL;
goto __error;
}
for(k=0; k < connector->uid_count; k++) {
struct mixart_pipe *pipe;
if(k
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