luckfox-pico-sdk/sysdrv/drv_ko/wifi/ssv6x5x/ssvdevice/ssvdevice.c
2023-08-08 20:36:47 +08:00

688 lines
17 KiB
C

/*
* Copyright (c) 2015 iComm-semi Ltd.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <linux/kernel.h>
#include <linux/version.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/slab.h>
#include <linux/proc_fs.h> /* for proc_mkdir, create */
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/uaccess.h>
#include <asm/uaccess.h> /* for copy_from_user */
#include <linux/errno.h>
#ifdef CONFIG_DEBUG_FS
#include <linux/debugfs.h>
#endif //CONFIG_DEBUG_FS
#include "ssv_cmd.h"
#include "ssv_cfg.h"
#include <linux/fs.h>
//#include <asm/segment.h>
//#include <asm/uaccess.h>
#include <linux/buffer_head.h>
#include <linux/ctype.h> /* for isalpha & isdigit */
#include <ssv6200.h>
#include <hci/hctrl.h>
#include <smac/dev.h>
#include <hci/ssv_hci.h>
#include <smac/init.h>
#include <hwif/sdio/sdio.h>
#include <hwif/usb/usb.h>
#include <hwif/hal/hwif_hal.h>
MODULE_AUTHOR("iComm-semi, Ltd");
MODULE_DESCRIPTION("Shared library for SSV wireless LAN cards.");
MODULE_LICENSE("Dual BSD/GPL");
char *stacfgpath = NULL;
EXPORT_SYMBOL(stacfgpath);
module_param(stacfgpath, charp, 0000);
MODULE_PARM_DESC(stacfgpath, "Get path of sta cfg");
char *cfgfirmwarepath = NULL;
EXPORT_SYMBOL(cfgfirmwarepath);
module_param(cfgfirmwarepath, charp, 0000);
MODULE_PARM_DESC(cfgfirmwarepath, "Get firmware path");
char* ssv_initmac = NULL;
EXPORT_SYMBOL(ssv_initmac);
module_param(ssv_initmac, charp, 0644);
MODULE_PARM_DESC(ssv_initmac, "Wi-Fi MAC address");
/*****************/
/* For USB only. */
/*****************/
#ifndef CONFIG_USB_TX_MULTI_URB
int ssv_usb_rx_nr_recvbuff = 2;
#else
int ssv_usb_rx_nr_recvbuff = 5;
#endif
EXPORT_SYMBOL(ssv_usb_rx_nr_recvbuff);
module_param(ssv_usb_rx_nr_recvbuff, int, 0644);
MODULE_PARM_DESC(ssv_usb_rx_nr_recvbuff, "USB RX buffer 1 ~ SSV_USB_MAX_NR_RECVBUFF");
/*****************/
/* For USB only. */
/*****************/
int ssv_rx_use_wq = 0;
EXPORT_SYMBOL(ssv_rx_use_wq);
module_param(ssv_rx_use_wq, int, 0444);
MODULE_PARM_DESC(ssv_rx_use_wq, "USB RX uses workqueue instead of tasklet");
/* for debug */
static struct proc_dir_entry *__ssv_procfs;
extern struct ssv6xxx_cfg_cmd_table cfg_cmds[];
extern struct ssv6xxx_cfg ssv_cfg;
#define READ_CHUNK 32
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0)
#define PDE_DATA(inode) ({ \
struct proc_dir_entry *dp = PDE(inode); \
data = dp->data; })
#endif
static char *p2pStatus = "0";
static int ssv6xxx_p2p_open(struct inode *inode, struct file *filp)
{
void *data = PDE_DATA(inode);
filp->private_data = data;
return 0;
}
static ssize_t ssv6xxx_p2p_read(struct file *filp, char __user *buffer,
size_t count, loff_t *ppos)
{
s32 ret, retlen, retval = 0;
retlen = strlen(p2pStatus)+1;
if (*ppos >= retlen)
goto out;
if (*ppos + count > retlen)
retlen = retlen - *ppos;
ret = copy_to_user(buffer, p2pStatus, retlen);
printk("%s: p2pStatus = %s \n", __func__,p2pStatus);
*ppos += retlen - ret;
retval = retlen - ret;
out:
return retval;
}
static ssize_t ssv6xxx_p2p_write(struct file *filp, const char __user *buffer,
size_t count, loff_t *ppos)
{
struct ssv_cmd_data *cmd_data = filp->private_data;
struct ssv_softc *sc = container_of(cmd_data, struct ssv_softc, cmd_data);
int enable = 0;
ssize_t retval= -ENOMEM;
if (*ppos != 0 || count > 255)
return 0;
if (copy_from_user(p2pStatus, buffer, count)){
retval = -EFAULT;
goto out;
}
p2pStatus[count - 1] = 0;
enable = simple_strtol(p2pStatus, NULL, 10);
printk("%s: enable = %d\n", __func__, enable);
if(enable >= 0){
sc->p2p_status = enable;
printk("p2p_status:%d\n",sc->p2p_status);
}
retval = count;
out:
return retval;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,11)
static const struct proc_ops ssv6xxx_p2p_fops = {
.proc_open = ssv6xxx_p2p_open,
.proc_read = ssv6xxx_p2p_read,
.proc_write =ssv6xxx_p2p_write,
};
#else
static struct file_operations ssv6xxx_p2p_fops = {
.owner = THIS_MODULE,
.open = ssv6xxx_p2p_open,
.read = ssv6xxx_p2p_read,
.write = ssv6xxx_p2p_write,
};
#endif
static int ssv6xxx_freq_open(struct inode *inode, struct file *filp)
{
void *data = PDE_DATA(inode);
filp->private_data = data;
return 0;
}
static ssize_t ssv6xxx_freq_read(struct file *filp, char __user *buffer,
size_t count, loff_t *ppos)
{
struct ssv_cmd_data *cmd_data = filp->private_data;
struct ssv_softc *sc = container_of(cmd_data, struct ssv_softc, cmd_data);
char chan_freq[8]="0";
s32 ret, retlen, retval = 0;
u16 channel_freq = sc->channel_center_freq;
if(channel_freq > 0)
sprintf(chan_freq, "%u", channel_freq);
retlen = strlen(chan_freq)+1;
if (*ppos >= retlen)
goto out;
if (*ppos + count > retlen)
retlen = retlen - *ppos;
printk("freq=%s\n", chan_freq);
ret = copy_to_user(buffer, &chan_freq, retlen);
*ppos += retlen - ret;
retval = retlen - ret;
out:
return retval;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,11)
static const struct proc_ops ssv6xxx_freq_fops = {
.proc_open = ssv6xxx_freq_open,
.proc_read = ssv6xxx_freq_read,
};
#else
static struct file_operations ssv6xxx_freq_fops = {
.owner = THIS_MODULE,
.open = ssv6xxx_freq_open,
.read = ssv6xxx_freq_read,
};
#endif
static int ssv6xxx_cmd_file_open(struct inode *inode, struct file *filp)
{
void *data = PDE_DATA(inode);
filp->private_data = data;
return 0;
}
static ssize_t ssv6xxx_cmd_file_read(struct file *filp, char __user *buffer,
size_t count, loff_t *ppos)
{
char *ssv6xxx_result_buf;
struct ssv_cmd_data *cmd_data = filp->private_data;
int len;
int ret = 0;
if (!(cmd_data->cmd_in_proc)){
goto out;
}
ssv6xxx_result_buf = cmd_data->ssv6xxx_result_buf;
cmd_data->cmd_in_proc = false;
if (!ssv6xxx_result_buf){
goto out;
}
cmd_data->ssv6xxx_result_buf = NULL;
if (*ppos != 0){
goto free;
}
if (cmd_data->rsbuf_size < cmd_data->rsbuf_len)
cmd_data->rsbuf_len = cmd_data->rsbuf_size-1;
len = cmd_data->rsbuf_len + 1;
if (len == 1){
goto free;
}
if (copy_to_user(buffer, ssv6xxx_result_buf, len)){
ret = -EFAULT;
goto free;
}
ret = len;
free:
kfree(ssv6xxx_result_buf);
out:
if (atomic_read (&cmd_data->cli_count) > 0)
atomic_dec(&cmd_data->cli_count);
return ret;
}
static ssize_t ssv6xxx_cmd_file_write(struct file *filp, const char __user *buffer,
size_t count, loff_t *ppos)
{
char *ssv6xxx_cmd_buf = NULL;
struct ssv_cmd_data *cmd_data = filp->private_data;
int i = 0;
if (*ppos != 0 || count > 255)
return 0;
ssv6xxx_cmd_buf = (char *)kzalloc(count, GFP_KERNEL);
if (!ssv6xxx_cmd_buf)
return 0;
ssv6xxx_cmd_buf[0] = 0x00;
if (copy_from_user(ssv6xxx_cmd_buf, buffer, count))
return -EFAULT;
while (atomic_read (&cmd_data->cli_count) != 0) {
msleep(1);
i++;
if (i > 1000) return -EFAULT;
}
// there is one write , two read for one cli command
// it should count as 2 for write operation to balance it.
atomic_add(2, &cmd_data->cli_count);
ssv6xxx_cmd_buf[count-1] = 0x00;
ssv_cmd_submit((struct ssv_cmd_data *)filp->private_data, ssv6xxx_cmd_buf);
kfree(ssv6xxx_cmd_buf);
return count;
}
size_t read_line(struct file *fp, char *buf, size_t size)
{
size_t num_read = 0;
size_t total_read = 0;
char *buffer;
char ch;
size_t start_ignore = 0;
if (size <= 0 || buf == NULL) {
total_read = -EINVAL;
return -EINVAL;
}
buffer = buf;
for (;;) {
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,37)
if (fp->f_op && fp->f_op->read)
num_read = fp->f_op->read(fp, &ch, 1, &fp->f_pos);
#else
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0)
num_read = kernel_read(fp, &ch, 1, &fp->f_pos);
#else
num_read = vfs_read(fp, &ch, 1, &fp->f_pos);
#endif
#endif
if (num_read < 0) {
if (num_read == EINTR)
continue;
else
return -1;
}
else if (num_read == 0) {
if (total_read == 0)
return 0;
else
break;
}
else {
if (ch == '#')
start_ignore = 1;
if (total_read < size - 1) {
total_read++;
if (start_ignore)
*buffer++ = '\0';
else
*buffer++ = ch;
}
if (ch == '\n')
break;
}
}
*buffer = '\0';
return total_read;
}
int ischar(char *c)
{
int is_char = 1;
while(*c) {
if (isalpha(*c) || isdigit(*c) || *c == '_' || *c == ':' || *c == '/' || *c == '.' || *c == '-'|| *c == ',')
c++;
else {
is_char = 0;
break;
}
}
return is_char;
}
static void _set_initial_cfg_default(void)
{
size_t s;
for(s=0; cfg_cmds[s].cfg_cmd != NULL; s++) {
if ((cfg_cmds[s].def_val)!= NULL) {
cfg_cmds[s].translate_func(cfg_cmds[s].def_val,
cfg_cmds[s].var, cfg_cmds[s].arg);
}
}
}
static void _import_default_cfg (char *stacfgpath)
{
struct file *fp = (struct file *) NULL;
char buf[MAX_CHARS_PER_LINE], cfg_cmd[32], cfg_value[32];
mm_segment_t fs;
size_t s, read_len = 0, is_cmd_support = 0;
printk("\n*** %s, %s ***\n\n", __func__, stacfgpath);
// Init the buffer with 0
memset(&ssv_cfg, 0, sizeof(ssv_cfg));
// set default config value
_set_initial_cfg_default();
if (stacfgpath == NULL)
{
WARN_ON(1);
return;
}
memset(buf, 0, sizeof(buf));
fp = filp_open(stacfgpath, O_RDONLY, 0);
if (IS_ERR(fp) || fp == NULL) {
printk("ERROR: filp_open\n");
WARN_ON(1);
return;
}
if (fp->f_path.dentry == NULL) {
printk("ERROR: dentry NULL\n");
WARN_ON(1);
return;
}
do {
memset(cfg_cmd, '\0', sizeof(cfg_cmd));
memset(cfg_value, '\0', sizeof(cfg_value));
// Get current segment descriptor
fs = get_fs();
// Set segment descriptor associated to kernel space
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0))
set_fs(KERNEL_DS);
#else
set_fs(get_ds());
#endif
// Read the file
read_len = read_line(fp, buf, MAX_CHARS_PER_LINE);
// Restore segment descriptor
set_fs(fs);
sscanf(buf, "%s = %s", cfg_cmd, cfg_value);
if (!ischar(cfg_cmd) || !ischar(cfg_value)) {
printk("ERORR invalid parameter: %s\n", buf);
WARN_ON(1);
continue;
}
is_cmd_support = 0;
for(s=0; cfg_cmds[s].cfg_cmd != NULL; s++) {
if (strcmp(cfg_cmds[s].cfg_cmd, cfg_cmd)==0) {
cfg_cmds[s].translate_func(cfg_value,
cfg_cmds[s].var, cfg_cmds[s].arg);
//printk(KERN_INFO "%scmd:%s, value:%s\n",buf, cfg_cmd, cfg_value);
is_cmd_support = 1;
break;
}
}
if (!is_cmd_support && strlen(cfg_cmd) > 0) {
printk("ERROR Unsupported command: %s", cfg_cmd);
WARN_ON(1);
}
} while (read_len > 0); //0: eof, < 0: error
filp_close(fp, NULL);
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,11)
static const struct proc_ops ssv6xxx_cmd_fops = {
.proc_open = ssv6xxx_cmd_file_open,
.proc_read = ssv6xxx_cmd_file_read,
.proc_write = ssv6xxx_cmd_file_write,
};
#else
static struct file_operations ssv6xxx_cmd_fops = {
.owner = THIS_MODULE,
.open = ssv6xxx_cmd_file_open,
.read = ssv6xxx_cmd_file_read,
.write = ssv6xxx_cmd_file_write,
};
#endif
static void *ssv6xxx_dbg_seq_start(struct seq_file *s, loff_t *pos)
{
struct ssv_cmd_data *cmd_data = s->private;
struct ssv_dbg_log *dbg_log = &cmd_data->dbg_log;
//seq_printf(s, "log size %d bytes\n", dbg_log->size);
*pos = 0;
rcu_read_lock();
if (dbg_log->size <= 0)
return NULL;
return dbg_log;
}
static void *ssv6xxx_dbg_seq_next(struct seq_file *s, void *v, loff_t *pos)
{
struct ssv_cmd_data *cmd_data = s->private;
struct ssv_dbg_log *dbg_log = &cmd_data->dbg_log;
++*pos;
if (dbg_log->size <= 0)
return NULL;
return dbg_log;
}
static void ssv6xxx_dbg_seq_stop(struct seq_file *s, void *v)
{
struct ssv_cmd_data *cmd_data = s->private;
struct ssv_dbg_log *dbg_log = &cmd_data->dbg_log;
if ((dbg_log == NULL) || (dbg_log->data == NULL) || (dbg_log->totalsize == 0)) {
rcu_read_lock();
return;
}
if (dbg_log->size == 0) {
dbg_log->top = dbg_log->data;
dbg_log->tail = dbg_log->data;
dbg_log->end = &(dbg_log->data[dbg_log->totalsize]);
}
seq_putc(s, '\n');
rcu_read_lock();
return;
}
static int ssv6xxx_dbg_seq_show(struct seq_file *s, void *v)
{
struct ssv_dbg_log *dbg_log = (struct ssv_dbg_log *)v;
char *p = dbg_log->top;
seq_putc(s, *p++);
if (p == dbg_log->end)
p = dbg_log->data;
dbg_log->top = p;
dbg_log->size--;
return 0;
}
static struct seq_operations ssv6xxx_dbg_seq_fops = {
.start = ssv6xxx_dbg_seq_start,
.next = ssv6xxx_dbg_seq_next,
.stop = ssv6xxx_dbg_seq_stop,
.show = ssv6xxx_dbg_seq_show,
};
static int ssv6xxx_dbg_file_open(struct inode *inode, struct file *filp)
{
int ret = 0;
struct seq_file *sf;
void *data = PDE_DATA(inode);
ret = seq_open(filp, &ssv6xxx_dbg_seq_fops);
if (!ret) {
sf = filp->private_data;
sf->private = data;
}
return ret;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,11)
static const struct proc_ops ssv6xxx_dbg_fops = {
.proc_open = ssv6xxx_dbg_file_open,
.proc_read = seq_read,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
};
#else
static struct file_operations ssv6xxx_dbg_fops = {
.owner = THIS_MODULE,
.open = ssv6xxx_dbg_file_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
#endif
// static const struct proc_ops proc_wepkey_ops = {
// .proc_read = proc_read,
// .proc_write = proc_write,
// .proc_open = proc_wepkey_open,
// .proc_release = proc_close,
// .proc_lseek = default_llseek,
// };
int ssv_init_cli (const char *dev_name, struct ssv_cmd_data *cmd_data)
{
struct proc_dir_entry *proc_file_entry;
// Create directory for each device. Then create following proc entries under it.
cmd_data->proc_dev_entry = proc_mkdir(dev_name, __ssv_procfs);
if (!cmd_data->proc_dev_entry)
printk("KERN_ERR" "Failed to create %s dev directory for CLI. \n", dev_name);
proc_file_entry = proc_create_data(PROC_SSV_CMD_ENTRY, S_IRUGO|S_IWUGO, cmd_data->proc_dev_entry, &ssv6xxx_cmd_fops, cmd_data);
if (proc_file_entry == NULL)
printk(KERN_ERR "Failed to create %s for CLI.\n", PROC_SSV_CMD_ENTRY);
proc_file_entry = proc_create_data(PROC_SSV_DBG_ENTRY, S_IRUGO|S_IWUGO, cmd_data->proc_dev_entry, &ssv6xxx_dbg_fops, cmd_data);
if (proc_file_entry == NULL)
printk(KERN_ERR "Failed to create %s for SSV DBG.\n", PROC_SSV_DBG_ENTRY);
proc_file_entry = proc_create_data(PROC_SSV_FREQ_ENTRY, S_IRUGO|S_IWUGO, cmd_data->proc_dev_entry, &ssv6xxx_freq_fops, cmd_data);
if (proc_file_entry == NULL)
printk(KERN_ERR "Failed to create %s for SSV FREQ.\n", PROC_SSV_FREQ_ENTRY);
proc_file_entry = proc_create_data(PROC_SSV_P2P_ENTRY, S_IRUGO|S_IWUGO, cmd_data->proc_dev_entry, &ssv6xxx_p2p_fops, cmd_data);
if (proc_file_entry == NULL)
printk(KERN_ERR "Failed to create %s for SSV P2P.\n", PROC_SSV_P2P_ENTRY);
atomic_set(&cmd_data->cli_count, 0);
return 0;
}
EXPORT_SYMBOL(ssv_init_cli);
int ssv_deinit_cli (const char *dev_name, struct ssv_cmd_data *cmd_data)
{
remove_proc_entry(PROC_SSV_DBG_ENTRY, cmd_data->proc_dev_entry);
remove_proc_entry(PROC_SSV_CMD_ENTRY, cmd_data->proc_dev_entry);
remove_proc_entry(PROC_SSV_FREQ_ENTRY, cmd_data->proc_dev_entry);
remove_proc_entry(PROC_SSV_P2P_ENTRY, cmd_data->proc_dev_entry);
/* Remove dev directory must be last */
remove_proc_entry(dev_name, __ssv_procfs);
return 0;
}
EXPORT_SYMBOL(ssv_deinit_cli);
int ssvdevice_init(void)
{
// Initialize default configuration from file.
_import_default_cfg(stacfgpath);
__ssv_procfs = proc_mkdir(PROC_DIR_ENTRY, NULL);
if (!__ssv_procfs)
return -ENOMEM;
{
int ret;
ret = ssv6xxx_hci_init();
if(!ret){
ret = ssv6xxx_init();
}
if(!ret){
ret = ssv6xxx_hwif_hal_init();
}
if(!ret){
#if (defined(SSV_SUPPORT_SDIO))
ret = ssv6xxx_sdio_init();
#endif
#if (defined(SSV_SUPPORT_USB))
ret = ssv6xxx_usb_init();
#endif
}
return ret;
}
return 0;
}
void ssvdevice_exit(void)
{
ssv6xxx_exit();
ssv6xxx_hci_exit();
#if (defined(SSV_SUPPORT_SDIO))
ssv6xxx_sdio_exit();
#endif
#if (defined(SSV_SUPPORT_USB))
ssv6xxx_usb_exit();
#endif
ssv6xxx_hwif_hal_exit();
remove_proc_entry(PROC_DIR_ENTRY, NULL);
}
EXPORT_SYMBOL(ssvdevice_init);
EXPORT_SYMBOL(ssvdevice_exit);