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M7350/external/bluetooth/bluez/tools/hciattach_ath3k.c

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M7350v5_en_gpl
2024-09-09 08:57:42 +00:00
/*
* Copyright (c) 2009-2010 Atheros Communications Inc.
*
* This program 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <time.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/ioctl.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/hci_lib.h>
#include "hciattach.h"
#define TRUE 1
#define FALSE 0
#define FW_PATH "/lib/firmware/ar3k/"
struct ps_cfg_entry {
uint32_t id;
uint32_t len;
uint8_t *data;
};
struct ps_entry_type {
unsigned char type;
unsigned char array;
};
#define MAX_TAGS 50
#define PS_HDR_LEN 4
#define HCI_VENDOR_CMD_OGF 0x3F
#define HCI_PS_CMD_OCF 0x0B
struct ps_cfg_entry ps_list[MAX_TAGS];
static void load_hci_ps_hdr(uint8_t *cmd, uint8_t ps_op, int len, int index)
{
hci_command_hdr *ch = (void *)cmd;
ch->opcode = htobs(cmd_opcode_pack(HCI_VENDOR_CMD_OGF,
HCI_PS_CMD_OCF));
ch->plen = len + PS_HDR_LEN;
cmd += HCI_COMMAND_HDR_SIZE;
cmd[0] = ps_op;
cmd[1] = index;
cmd[2] = index >> 8;
cmd[3] = len;
}
#define PS_EVENT_LEN 100
/*
* Send HCI command and wait for command complete event.
* The event buffer has to be freed by the caller.
*/
static int send_hci_cmd_sync(int dev, uint8_t *cmd, int len, uint8_t **event)
{
int err;
uint8_t *hci_event;
uint8_t pkt_type = HCI_COMMAND_PKT;
if (len == 0)
return len;
if (write(dev, &pkt_type, 1) != 1)
return -EILSEQ;
if (write(dev, (unsigned char *)cmd, len) != len)
return -EILSEQ;
hci_event = (uint8_t *)malloc(PS_EVENT_LEN);
if (!hci_event)
return -ENOMEM;
err = read_hci_event(dev, (unsigned char *)hci_event, PS_EVENT_LEN);
if (err > 0) {
*event = hci_event;
} else {
free(hci_event);
return -EILSEQ;
}
return len;
}
#define HCI_EV_SUCCESS 0x00
static int read_ps_event(uint8_t *event, uint16_t ocf)
{
hci_event_hdr *eh;
uint16_t opcode = htobs(cmd_opcode_pack(HCI_VENDOR_CMD_OGF, ocf));
event++;
eh = (void *)event;
event += HCI_EVENT_HDR_SIZE;
if (eh->evt == EVT_CMD_COMPLETE) {
evt_cmd_complete *cc = (void *)event;
event += EVT_CMD_COMPLETE_SIZE;
if (cc->opcode == opcode && event[0] == HCI_EV_SUCCESS)
return 0;
else
return -EILSEQ;
}
return -EILSEQ;
}
static int write_cmd(int fd, uint8_t *buffer, int len)
{
uint8_t *event;
int err;
err = send_hci_cmd_sync(fd, buffer, len, &event);
if (err < 0)
return err;
err = read_ps_event(event, HCI_PS_CMD_OCF);
free(event);
return err;
}
#define PS_WRITE 1
#define PS_RESET 2
#define WRITE_PATCH 8
#define ENABLE_PATCH 11
#define HCI_PS_CMD_HDR_LEN 7
#define PS_RESET_PARAM_LEN 6
#define HCI_MAX_CMD_SIZE 260
#define PS_RESET_CMD_LEN (HCI_PS_CMD_HDR_LEN + PS_RESET_PARAM_LEN)
#define PS_ID_MASK 0xFF
/* Sends PS commands using vendor specficic HCI commands */
static int write_ps_cmd(int fd, uint8_t opcode, uint32_t ps_param)
{
uint8_t cmd[HCI_MAX_CMD_SIZE];
uint32_t i;
switch (opcode) {
case ENABLE_PATCH:
load_hci_ps_hdr(cmd, opcode, 0, 0x00);
if (write_cmd(fd, cmd, HCI_PS_CMD_HDR_LEN) < 0)
return -EILSEQ;
break;
case PS_RESET:
load_hci_ps_hdr(cmd, opcode, PS_RESET_PARAM_LEN, 0x00);
cmd[7] = 0x00;
cmd[PS_RESET_CMD_LEN - 2] = ps_param & PS_ID_MASK;
cmd[PS_RESET_CMD_LEN - 1] = (ps_param >> 8) & PS_ID_MASK;
if (write_cmd(fd, cmd, PS_RESET_CMD_LEN) < 0)
return -EILSEQ;
break;
case PS_WRITE:
for (i = 0; i < ps_param; i++) {
load_hci_ps_hdr(cmd, opcode, ps_list[i].len,
ps_list[i].id);
memcpy(&cmd[HCI_PS_CMD_HDR_LEN], ps_list[i].data,
ps_list[i].len);
if (write_cmd(fd, cmd, ps_list[i].len +
HCI_PS_CMD_HDR_LEN) < 0)
return -EILSEQ;
}
break;
}
return 0;
}
#define __is_delim(ch) ((ch) == ':')
#define MAX_PREAMBLE_LEN 4
/* Parse PS entry preamble of format [X:X] for main type and subtype */
static int get_ps_type(char *ptr, int index, char *type, char *sub_type)
{
int i;
int delim = FALSE;
if (index > MAX_PREAMBLE_LEN)
return -EILSEQ;
for (i = 1; i < index; i++) {
if (__is_delim(ptr[i])) {
delim = TRUE;
continue;
}
if (isalpha(ptr[i])) {
if (delim == FALSE)
(*type) = toupper(ptr[i]);
else
(*sub_type) = toupper(ptr[i]);
}
}
return 0;
}
#define ARRAY 'A'
#define STRING 'S'
#define DECIMAL 'D'
#define BINARY 'B'
#define PS_HEX 0
#define PS_DEC 1
static int get_input_format(char *buf, struct ps_entry_type *format)
{
char *ptr = NULL;
char type = '\0';
char sub_type = '\0';
format->type = PS_HEX;
format->array = TRUE;
if (strstr(buf, "[") != buf)
return 0;
ptr = strstr(buf, "]");
if (!ptr)
return -EILSEQ;
if (get_ps_type(buf, ptr - buf, &type, &sub_type) < 0)
return -EILSEQ;
/* Check is data type is of array */
if (type == ARRAY || sub_type == ARRAY)
format->array = TRUE;
if (type == STRING || sub_type == STRING)
format->array = FALSE;
if (type == DECIMAL || type == BINARY)
format->type = PS_DEC;
else
format->type = PS_HEX;
return 0;
}
#define UNDEFINED 0xFFFF
static unsigned int read_data_in_section(char *buf, struct ps_entry_type type)
{
char *ptr = buf;
if (!buf)
return UNDEFINED;
if (buf == strstr(buf, "[")) {
ptr = strstr(buf, "]");
if (!ptr)
return UNDEFINED;
ptr++;
}
if (type.type == PS_HEX && type.array != TRUE)
return strtol(ptr, NULL, 16);
return UNDEFINED;
}
struct tag_info {
unsigned section;
unsigned line_count;
unsigned char_cnt;
unsigned byte_count;
};
static inline int update_char_count(const char *buf)
{
char *end_ptr;
if (strstr(buf, "[") == buf) {
end_ptr = strstr(buf, "]");
if (!end_ptr)
return 0;
else
return (end_ptr - buf) + 1;
}
return 0;
}
/* Read PS entries as string, convert and add to Hex array */
static void update_tag_data(struct ps_cfg_entry *tag,
struct tag_info *info, const char *ptr)
{
char buf[3];
buf[2] = '\0';
strncpy(buf, &ptr[info->char_cnt], 2);
tag->data[info->byte_count] = strtol(buf, NULL, 16);
info->char_cnt += 3;
info->byte_count++;
strncpy(buf, &ptr[info->char_cnt], 2);
tag->data[info->byte_count] = strtol(buf, NULL, 16);
info->char_cnt += 3;
info->byte_count++;
}
#define PS_UNDEF 0
#define PS_ID 1
#define PS_LEN 2
#define PS_DATA 3
#define PS_MAX_LEN 500
#define LINE_SIZE_MAX (PS_MAX_LEN * 2)
#define ENTRY_PER_LINE 16
#define __check_comment(buf) (((buf)[0] == '/') && ((buf)[1] == '/'))
#define __skip_space(str) while (*(str) == ' ') ((str)++)
static int ath_parse_ps(FILE *stream)
{
char buf[LINE_SIZE_MAX + 1];
char *ptr;
uint8_t tag_cnt = 0;
int16_t byte_count = 0;
struct ps_entry_type format;
struct tag_info status = { 0, 0, 0, 0 };
do {
int read_count;
struct ps_cfg_entry *tag;
ptr = fgets(buf, LINE_SIZE_MAX, stream);
if (!ptr)
break;
__skip_space(ptr);
if (__check_comment(ptr))
continue;
/* Lines with a '#' will be followed by new PS entry */
if (ptr == strstr(ptr, "#")) {
if (status.section != PS_UNDEF) {
return -EILSEQ;
} else {
status.section = PS_ID;
continue;
}
}
tag = &ps_list[tag_cnt];
switch (status.section) {
case PS_ID:
if (get_input_format(ptr, &format) < 0)
return -EILSEQ;
tag->id = read_data_in_section(ptr, format);
status.section = PS_LEN;
break;
case PS_LEN:
if (get_input_format(ptr, &format) < 0)
return -EILSEQ;
byte_count = read_data_in_section(ptr, format);
if (byte_count > PS_MAX_LEN)
return -EILSEQ;
tag->len = byte_count;
tag->data = (uint8_t *)malloc(byte_count);
status.section = PS_DATA;
status.line_count = 0;
break;
case PS_DATA:
if (status.line_count == 0)
if (get_input_format(ptr, &format) < 0)
return -EILSEQ;
__skip_space(ptr);
status.char_cnt = update_char_count(ptr);
read_count = (byte_count > ENTRY_PER_LINE) ?
ENTRY_PER_LINE : byte_count;
if (format.type == PS_HEX && format.array == TRUE) {
while (read_count > 0) {
update_tag_data(tag, &status, ptr);
read_count -= 2;
}
if (byte_count > ENTRY_PER_LINE)
byte_count -= ENTRY_PER_LINE;
else
byte_count = 0;
}
status.line_count++;
if (byte_count == 0)
memset(&status, 0x00, sizeof(struct tag_info));
if (status.section == PS_UNDEF)
tag_cnt++;
if (tag_cnt == MAX_TAGS)
return -EILSEQ;
break;
}
} while (ptr);
return tag_cnt;
}
#define MAX_PATCH_CMD 244
struct patch_entry {
int16_t len;
uint8_t data[MAX_PATCH_CMD];
};
#define SET_PATCH_RAM_ID 0x0D
#define SET_PATCH_RAM_CMD_SIZE 11
#define ADDRESS_LEN 4
static int set_patch_ram(int dev, char *patch_loc, int len)
{
int err;
uint8_t cmd[20];
int i, j;
char loc_byte[3];
uint8_t *event;
uint8_t *loc_ptr = &cmd[7];
if (!patch_loc)
return -1;
loc_byte[2] = '\0';
load_hci_ps_hdr(cmd, SET_PATCH_RAM_ID, ADDRESS_LEN, 0);
for (i = 0, j = 3; i < 4; i++, j--) {
loc_byte[0] = patch_loc[0];
loc_byte[1] = patch_loc[1];
loc_ptr[j] = strtol(loc_byte, NULL, 16);
patch_loc += 2;
}
err = send_hci_cmd_sync(dev, cmd, SET_PATCH_RAM_CMD_SIZE, &event);
if (err < 0)
return err;
err = read_ps_event(event, HCI_PS_CMD_OCF);
free(event);
return err;
}
#define PATCH_LOC_KEY "DA:"
#define PATCH_LOC_STRING_LEN 8
static int ps_patch_download(int fd, FILE *stream)
{
char byte[3];
char ptr[MAX_PATCH_CMD + 1];
int byte_cnt;
int patch_count = 0;
char patch_loc[PATCH_LOC_STRING_LEN + 1];
byte[2] = '\0';
while (fgets(ptr, MAX_PATCH_CMD, stream)) {
if (strlen(ptr) <= 1)
continue;
else if (strstr(ptr, PATCH_LOC_KEY) == ptr) {
strncpy(patch_loc, &ptr[sizeof(PATCH_LOC_KEY) - 1],
PATCH_LOC_STRING_LEN);
if (set_patch_ram(fd, patch_loc, sizeof(patch_loc)) < 0)
return -1;
} else if (isxdigit(ptr[0]))
break;
else
return -1;
}
byte_cnt = strtol(ptr, NULL, 16);
while (byte_cnt > 0) {
int i;
uint8_t cmd[HCI_MAX_CMD_SIZE];
struct patch_entry patch;
if (byte_cnt > MAX_PATCH_CMD)
patch.len = MAX_PATCH_CMD;
else
patch.len = byte_cnt;
for (i = 0; i < patch.len; i++) {
if (!fgets(byte, 3, stream))
return -1;
patch.data[i] = strtoul(byte, NULL, 16);
}
load_hci_ps_hdr(cmd, WRITE_PATCH, patch.len, patch_count);
memcpy(&cmd[HCI_PS_CMD_HDR_LEN], patch.data, patch.len);
if (write_cmd(fd, cmd, patch.len + HCI_PS_CMD_HDR_LEN) < 0)
return -1;
patch_count++;
byte_cnt = byte_cnt - MAX_PATCH_CMD;
}
if (write_ps_cmd(fd, ENABLE_PATCH, 0) < 0)
return -1;
return patch_count;
}
#define PS_RAM_SIZE 2048
static int ps_config_download(int fd, int tag_count)
{
if (write_ps_cmd(fd, PS_RESET, PS_RAM_SIZE) < 0)
return -1;
if (tag_count > 0)
if (write_ps_cmd(fd, PS_WRITE, tag_count) < 0)
return -1;
return 0;
}
#define PS_ASIC_FILE "PS_ASIC.pst"
#define PS_FPGA_FILE "PS_FPGA.pst"
static void get_ps_file_name(uint32_t devtype, uint32_t rom_version,
char *path)
{
char *filename;
if (devtype == 0xdeadc0de)
filename = PS_ASIC_FILE;
else
filename = PS_FPGA_FILE;
snprintf(path, MAXPATHLEN, "%s%x/%s", FW_PATH, rom_version, filename);
}
#define PATCH_FILE "RamPatch.txt"
#define FPGA_ROM_VERSION 0x99999999
#define ROM_DEV_TYPE 0xdeadc0de
static void get_patch_file_name(uint32_t dev_type, uint32_t rom_version,
uint32_t build_version, char *path)
{
if (rom_version == FPGA_ROM_VERSION && dev_type != ROM_DEV_TYPE &&
dev_type != 0 && build_version == 1)
path[0] = '\0';
else
snprintf(path, MAXPATHLEN, "%s%x/%s",
FW_PATH, rom_version, PATCH_FILE);
}
#define VERIFY_CRC 9
#define PS_REGION 1
#define PATCH_REGION 2
static int get_ath3k_crc(int dev)
{
uint8_t cmd[7];
uint8_t *event;
int err;
load_hci_ps_hdr(cmd, VERIFY_CRC, 0, PS_REGION | PATCH_REGION);
err = send_hci_cmd_sync(dev, cmd, sizeof(cmd), &event);
if (err < 0)
return err;
/* Send error code if CRC check patched */
if (read_ps_event(event, HCI_PS_CMD_OCF) >= 0)
err = -EILSEQ;
free(event);
return err;
}
#define DEV_REGISTER 0x4FFC
#define GET_DEV_TYPE_OCF 0x05
static int get_device_type(int dev, uint32_t *code)
{
uint8_t cmd[8];
uint8_t *event;
uint32_t reg;
int err;
uint8_t *ptr = cmd;
hci_command_hdr *ch = (void *)cmd;
ch->opcode = htobs(cmd_opcode_pack(HCI_VENDOR_CMD_OGF,
GET_DEV_TYPE_OCF));
ch->plen = 5;
ptr += HCI_COMMAND_HDR_SIZE;
ptr[0] = (uint8_t)DEV_REGISTER;
ptr[1] = (uint8_t)DEV_REGISTER >> 8;
ptr[2] = (uint8_t)DEV_REGISTER >> 16;
ptr[3] = (uint8_t)DEV_REGISTER >> 24;
ptr[4] = 0x04;
err = send_hci_cmd_sync(dev, cmd, sizeof(cmd), &event);
if (err < 0)
return err;
err = read_ps_event(event, GET_DEV_TYPE_OCF);
if (err < 0)
goto cleanup;
reg = event[10];
reg = (reg << 8) | event[9];
reg = (reg << 8) | event[8];
reg = (reg << 8) | event[7];
*code = reg;
cleanup:
free(event);
return err;
}
#define GET_VERSION_OCF 0x1E
static int read_ath3k_version(int pConfig, uint32_t *rom_version,
uint32_t *build_version)
{
uint8_t cmd[3];
uint8_t *event;
int err;
int status;
hci_command_hdr *ch = (void *)cmd;
ch->opcode = htobs(cmd_opcode_pack(HCI_VENDOR_CMD_OGF,
GET_VERSION_OCF));
ch->plen = 0;
err = send_hci_cmd_sync(pConfig, cmd, sizeof(cmd), &event);
if (err < 0)
return err;
err = read_ps_event(event, GET_VERSION_OCF);
if (err < 0)
goto cleanup;
status = event[10];
status = (status << 8) | event[9];
status = (status << 8) | event[8];
status = (status << 8) | event[7];
*rom_version = status;
status = event[14];
status = (status << 8) | event[13];
status = (status << 8) | event[12];
status = (status << 8) | event[11];
*build_version = status;
cleanup:
free(event);
return err;
}
static void convert_bdaddr(char *str_bdaddr, char *bdaddr)
{
char bdbyte[3];
char *str_byte = str_bdaddr;
int i, j;
int colon_present = 0;
if (strstr(str_bdaddr, ":"))
colon_present = 1;
bdbyte[2] = '\0';
/* Reverse the BDADDR to LSB first */
for (i = 0, j = 5; i < 6; i++, j--) {
bdbyte[0] = str_byte[0];
bdbyte[1] = str_byte[1];
bdaddr[j] = strtol(bdbyte, NULL, 16);
if (colon_present == 1)
str_byte += 3;
else
str_byte += 2;
}
}
static int write_bdaddr(int pConfig, char *bdaddr)
{
uint8_t *event;
int err;
uint8_t cmd[13];
uint8_t *ptr = cmd;
hci_command_hdr *ch = (void *)cmd;
memset(cmd, 0, sizeof(cmd));
ch->opcode = htobs(cmd_opcode_pack(HCI_VENDOR_CMD_OGF,
HCI_PS_CMD_OCF));
ch->plen = 10;
ptr += HCI_COMMAND_HDR_SIZE;
ptr[0] = 0x01;
ptr[1] = 0x01;
ptr[2] = 0x00;
ptr[3] = 0x06;
convert_bdaddr(bdaddr, (char *)&ptr[4]);
err = send_hci_cmd_sync(pConfig, cmd, sizeof(cmd), &event);
if (err < 0)
return err;
err = read_ps_event(event, HCI_PS_CMD_OCF);
free(event);
return err;
}
#define BDADDR_FILE "ar3kbdaddr.pst"
static void write_bdaddr_from_file(int rom_version, int fd)
{
FILE *stream;
char bdaddr[PATH_MAX];
char bdaddr_file[PATH_MAX];
snprintf(bdaddr_file, MAXPATHLEN, "%s%x/%s",
FW_PATH, rom_version, BDADDR_FILE);
stream = fopen(bdaddr_file, "r");
if (!stream)
return;
if (fgets(bdaddr, PATH_MAX - 1, stream))
write_bdaddr(fd, bdaddr);
fclose(stream);
}
static int ath_ps_download(int fd)
{
int err = 0;
int tag_count;
int patch_count = 0;
uint32_t rom_version = 0;
uint32_t build_version = 0;
uint32_t dev_type = 0;
char patch_file[PATH_MAX];
char ps_file[PATH_MAX];
FILE *stream;
/*
* Verfiy firmware version. depending on it select the PS
* config file to download.
*/
if (get_device_type(fd, &dev_type) < 0) {
err = -EILSEQ;
goto download_cmplete;
}
if (read_ath3k_version(fd, &rom_version, &build_version) < 0) {
err = -EILSEQ;
goto download_cmplete;
}
/* Do not download configuration if CRC passes */
if (get_ath3k_crc(fd) < 0) {
err = 0;
goto download_cmplete;
}
get_ps_file_name(dev_type, rom_version, ps_file);
get_patch_file_name(dev_type, rom_version, build_version, patch_file);
stream = fopen(ps_file, "r");
if (!stream) {
perror("firmware file open error\n");
err = -EILSEQ;
goto download_cmplete;
}
tag_count = ath_parse_ps(stream);
fclose(stream);
if (tag_count < 0) {
err = -EILSEQ;
goto download_cmplete;
}
/*
* It is not necessary that Patch file be available,
* continue with PS Operations if patch file is not available.
*/
if (patch_file[0] == '\0')
err = 0;
stream = fopen(patch_file, "r");
if (!stream)
err = 0;
else {
patch_count = ps_patch_download(fd, stream);
fclose(stream);
if (patch_count < 0) {
err = -EILSEQ;
goto download_cmplete;
}
}
err = ps_config_download(fd, tag_count);
download_cmplete:
if (!err)
write_bdaddr_from_file(rom_version, fd);
return err;
}
#define HCI_SLEEP_CMD_OCF 0x04
/*
* Atheros AR300x specific initialization post callback
*/
int ath3k_post(int fd, int pm)
{
int dev_id, dd;
struct timespec tm = { 0, 50000 };
sleep(1);
dev_id = ioctl(fd, HCIUARTGETDEVICE, 0);
if (dev_id < 0) {
perror("cannot get device id");
return dev_id;
}
dd = hci_open_dev(dev_id);
if (dd < 0) {
perror("HCI device open failed");
return dd;
}
if (ioctl(dd, HCIDEVUP, dev_id) < 0 && errno != EALREADY) {
perror("hci down:Power management Disabled");
hci_close_dev(dd);
return -1;
}
/* send vendor specific command with Sleep feature Enabled */
if (hci_send_cmd(dd, OGF_VENDOR_CMD, HCI_SLEEP_CMD_OCF, 1, &pm) < 0)
perror("PM command failed, power management Disabled");
nanosleep(&tm, NULL);
hci_close_dev(dd);
return 0;
}
#define HCI_VENDOR_CMD_OGF 0x3F
#define HCI_PS_CMD_OCF 0x0B
#define HCI_CHG_BAUD_CMD_OCF 0x0C
#define WRITE_BDADDR_CMD_LEN 14
#define WRITE_BAUD_CMD_LEN 6
#define MAX_CMD_LEN WRITE_BDADDR_CMD_LEN
static int set_cntrlr_baud(int fd, int speed)
{
int baud;
struct timespec tm = { 0, 500000 };
unsigned char cmd[MAX_CMD_LEN], rsp[HCI_MAX_EVENT_SIZE];
unsigned char *ptr = cmd + 1;
hci_command_hdr *ch = (void *)ptr;
cmd[0] = HCI_COMMAND_PKT;
/* set controller baud rate to user specified value */
ptr = cmd + 1;
ch->opcode = htobs(cmd_opcode_pack(HCI_VENDOR_CMD_OGF,
HCI_CHG_BAUD_CMD_OCF));
ch->plen = 2;
ptr += HCI_COMMAND_HDR_SIZE;
baud = speed/100;
ptr[0] = (char)baud;
ptr[1] = (char)(baud >> 8);
if (write(fd, cmd, WRITE_BAUD_CMD_LEN) != WRITE_BAUD_CMD_LEN) {
perror("Failed to write change baud rate command");
return -ETIMEDOUT;
}
nanosleep(&tm, NULL);
if (read_hci_event(fd, rsp, sizeof(rsp)) < 0)
return -ETIMEDOUT;
return 0;
}
/*
* Atheros AR300x specific initialization and configuration file
* download
*/
int ath3k_init(int fd, int speed, int init_speed, char *bdaddr,
struct termios *ti)
{
int r;
int err = 0;
struct timespec tm = { 0, 500000 };
unsigned char cmd[MAX_CMD_LEN], rsp[HCI_MAX_EVENT_SIZE];
unsigned char *ptr = cmd + 1;
hci_command_hdr *ch = (void *)ptr;
cmd[0] = HCI_COMMAND_PKT;
/* set both controller and host baud rate to maximum possible value */
err = set_cntrlr_baud(fd, speed);
if (err < 0)
return err;
err = set_speed(fd, ti, speed);
if (err < 0) {
perror("Can't set required baud rate");
return err;
}
/* Download PS and patch */
r = ath_ps_download(fd);
if (r < 0) {
perror("Failed to Download configuration");
err = -ETIMEDOUT;
goto failed;
}
/* Write BDADDR */
if (bdaddr) {
ch->opcode = htobs(cmd_opcode_pack(HCI_VENDOR_CMD_OGF,
HCI_PS_CMD_OCF));
ch->plen = 10;
ptr += HCI_COMMAND_HDR_SIZE;
ptr[0] = 0x01;
ptr[1] = 0x01;
ptr[2] = 0x00;
ptr[3] = 0x06;
str2ba(bdaddr, (bdaddr_t *)(ptr + 4));
if (write(fd, cmd, WRITE_BDADDR_CMD_LEN) !=
WRITE_BDADDR_CMD_LEN) {
perror("Failed to write BD_ADDR command\n");
err = -ETIMEDOUT;
goto failed;
}
if (read_hci_event(fd, rsp, sizeof(rsp)) < 0) {
perror("Failed to set BD_ADDR\n");
err = -ETIMEDOUT;
goto failed;
}
}
/* Send HCI Reset */
cmd[1] = 0x03;
cmd[2] = 0x0C;
cmd[3] = 0x00;
r = write(fd, cmd, 4);
if (r != 4) {
err = -ETIMEDOUT;
goto failed;
}
nanosleep(&tm, NULL);
if (read_hci_event(fd, rsp, sizeof(rsp)) < 0) {
err = -ETIMEDOUT;
goto failed;
}
err = set_cntrlr_baud(fd, speed);
if (err < 0)
return err;
failed:
if (err < 0) {
set_cntrlr_baud(fd, init_speed);
set_speed(fd, ti, init_speed);
}
return err;
}
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