blob: 92c7fb6853eb7c24a5eda133ba0febafcde9e6ea [file] [log] [blame]
#include "wl1251_cmd.h"
#include <linux/module.h>
#include <linux/crc7.h>
#include <linux/spi/spi.h>
#include "wl1251.h"
#include "wl12xx_80211.h"
#include "reg.h"
#include "wl1251_spi.h"
#include "wl1251_ps.h"
#include "wl1251_acx.h"
/**
* send command to firmware
*
* @wl: wl struct
* @id: command id
* @buf: buffer containing the command, must work with dma
* @len: length of the buffer
*/
int wl12xx_cmd_send(struct wl12xx *wl, u16 id, void *buf, size_t len)
{
struct wl12xx_cmd_header *cmd;
unsigned long timeout;
u32 intr;
int ret = 0;
cmd = buf;
cmd->id = id;
cmd->status = 0;
WARN_ON(len % 4 != 0);
wl12xx_spi_mem_write(wl, wl->cmd_box_addr, buf, len);
wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
timeout = jiffies + msecs_to_jiffies(WL12XX_COMMAND_TIMEOUT);
intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
while (!(intr & wl->chip.intr_cmd_complete)) {
if (time_after(jiffies, timeout)) {
wl12xx_error("command complete timeout");
ret = -ETIMEDOUT;
goto out;
}
msleep(1);
intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
}
wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_ACK,
wl->chip.intr_cmd_complete);
out:
return ret;
}
/**
* send test command to firmware
*
* @wl: wl struct
* @buf: buffer containing the command, with all headers, must work with dma
* @len: length of the buffer
* @answer: is answer needed
*/
int wl12xx_cmd_test(struct wl12xx *wl, void *buf, size_t buf_len, u8 answer)
{
int ret;
wl12xx_debug(DEBUG_CMD, "cmd test");
ret = wl12xx_cmd_send(wl, CMD_TEST, buf, buf_len);
if (ret < 0) {
wl12xx_warning("TEST command failed");
return ret;
}
if (answer) {
struct wl12xx_command *cmd_answer;
/*
* The test command got in, we can read the answer.
* The answer would be a wl12xx_command, where the
* parameter array contains the actual answer.
*/
wl12xx_spi_mem_read(wl, wl->cmd_box_addr, buf, buf_len);
cmd_answer = buf;
if (cmd_answer->header.status != CMD_STATUS_SUCCESS)
wl12xx_error("TEST command answer error: %d",
cmd_answer->header.status);
}
return 0;
}
/**
* read acx from firmware
*
* @wl: wl struct
* @id: acx id
* @buf: buffer for the response, including all headers, must work with dma
* @len: lenght of buf
*/
int wl12xx_cmd_interrogate(struct wl12xx *wl, u16 id, void *buf, size_t len)
{
struct acx_header *acx = buf;
int ret;
wl12xx_debug(DEBUG_CMD, "cmd interrogate");
acx->id = id;
/* payload length, does not include any headers */
acx->len = len - sizeof(*acx);
ret = wl12xx_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx));
if (ret < 0) {
wl12xx_error("INTERROGATE command failed");
goto out;
}
/* the interrogate command got in, we can read the answer */
wl12xx_spi_mem_read(wl, wl->cmd_box_addr, buf, len);
acx = buf;
if (acx->cmd.status != CMD_STATUS_SUCCESS)
wl12xx_error("INTERROGATE command error: %d",
acx->cmd.status);
out:
return ret;
}
/**
* write acx value to firmware
*
* @wl: wl struct
* @id: acx id
* @buf: buffer containing acx, including all headers, must work with dma
* @len: length of buf
*/
int wl12xx_cmd_configure(struct wl12xx *wl, u16 id, void *buf, size_t len)
{
struct acx_header *acx = buf;
int ret;
wl12xx_debug(DEBUG_CMD, "cmd configure");
acx->id = id;
/* payload length, does not include any headers */
acx->len = len - sizeof(*acx);
ret = wl12xx_cmd_send(wl, CMD_CONFIGURE, acx, len);
if (ret < 0) {
wl12xx_warning("CONFIGURE command NOK");
return ret;
}
return 0;
}
int wl12xx_cmd_vbm(struct wl12xx *wl, u8 identity,
void *bitmap, u16 bitmap_len, u8 bitmap_control)
{
struct wl12xx_cmd_vbm_update *vbm;
int ret;
wl12xx_debug(DEBUG_CMD, "cmd vbm");
vbm = kzalloc(sizeof(*vbm), GFP_KERNEL);
if (!vbm) {
ret = -ENOMEM;
goto out;
}
/* Count and period will be filled by the target */
vbm->tim.bitmap_ctrl = bitmap_control;
if (bitmap_len > PARTIAL_VBM_MAX) {
wl12xx_warning("cmd vbm len is %d B, truncating to %d",
bitmap_len, PARTIAL_VBM_MAX);
bitmap_len = PARTIAL_VBM_MAX;
}
memcpy(vbm->tim.pvb_field, bitmap, bitmap_len);
vbm->tim.identity = identity;
vbm->tim.length = bitmap_len + 3;
vbm->len = cpu_to_le16(bitmap_len + 5);
ret = wl12xx_cmd_send(wl, CMD_VBM, vbm, sizeof(*vbm));
if (ret < 0) {
wl12xx_error("VBM command failed");
goto out;
}
out:
kfree(vbm);
return 0;
}
int wl12xx_cmd_data_path(struct wl12xx *wl, u8 channel, bool enable)
{
struct cmd_enabledisable_path *cmd;
int ret;
u16 cmd_rx, cmd_tx;
wl12xx_debug(DEBUG_CMD, "cmd data path");
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
cmd->channel = channel;
if (enable) {
cmd_rx = CMD_ENABLE_RX;
cmd_tx = CMD_ENABLE_TX;
} else {
cmd_rx = CMD_DISABLE_RX;
cmd_tx = CMD_DISABLE_TX;
}
ret = wl12xx_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd));
if (ret < 0) {
wl12xx_error("rx %s cmd for channel %d failed",
enable ? "start" : "stop", channel);
goto out;
}
wl12xx_debug(DEBUG_BOOT, "rx %s cmd channel %d",
enable ? "start" : "stop", channel);
ret = wl12xx_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd));
if (ret < 0) {
wl12xx_error("tx %s cmd for channel %d failed",
enable ? "start" : "stop", channel);
return ret;
}
wl12xx_debug(DEBUG_BOOT, "tx %s cmd channel %d",
enable ? "start" : "stop", channel);
out:
kfree(cmd);
return ret;
}
int wl1251_cmd_join(struct wl12xx *wl, u8 bss_type, u8 dtim_interval,
u16 beacon_interval, u8 wait)
{
unsigned long timeout;
struct cmd_join *join;
int ret, i;
u8 *bssid;
join = kzalloc(sizeof(*join), GFP_KERNEL);
if (!join) {
ret = -ENOMEM;
goto out;
}
/* FIXME: this should be in main.c */
ret = wl12xx_acx_frame_rates(wl, DEFAULT_HW_GEN_TX_RATE,
DEFAULT_HW_GEN_MODULATION_TYPE,
wl->tx_mgmt_frm_rate,
wl->tx_mgmt_frm_mod);
if (ret < 0)
goto out;
wl12xx_debug(DEBUG_CMD, "cmd join");
/* Reverse order BSSID */
bssid = (u8 *) &join->bssid_lsb;
for (i = 0; i < ETH_ALEN; i++)
bssid[i] = wl->bssid[ETH_ALEN - i - 1];
join->rx_config_options = wl->rx_config;
join->rx_filter_options = wl->rx_filter;
join->basic_rate_set = RATE_MASK_1MBPS | RATE_MASK_2MBPS |
RATE_MASK_5_5MBPS | RATE_MASK_11MBPS;
join->beacon_interval = beacon_interval;
join->dtim_interval = dtim_interval;
join->bss_type = bss_type;
join->channel = wl->channel;
join->ctrl = JOIN_CMD_CTRL_TX_FLUSH;
ret = wl12xx_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join));
if (ret < 0) {
wl12xx_error("failed to initiate cmd join");
goto out;
}
timeout = msecs_to_jiffies(JOIN_TIMEOUT);
/*
* ugly hack: we should wait for JOIN_EVENT_COMPLETE_ID but to
* simplify locking we just sleep instead, for now
*/
if (wait)
msleep(10);
out:
kfree(join);
return ret;
}
int wl12xx_cmd_ps_mode(struct wl12xx *wl, u8 ps_mode)
{
struct wl12xx_cmd_ps_params *ps_params = NULL;
int ret = 0;
/* FIXME: this should be in ps.c */
ret = wl12xx_acx_wake_up_conditions(wl, WAKE_UP_EVENT_DTIM_BITMAP,
wl->listen_int);
if (ret < 0) {
wl12xx_error("couldn't set wake up conditions");
goto out;
}
wl12xx_debug(DEBUG_CMD, "cmd set ps mode");
ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
if (!ps_params) {
ret = -ENOMEM;
goto out;
}
ps_params->ps_mode = ps_mode;
ps_params->send_null_data = 1;
ps_params->retries = 5;
ps_params->hang_over_period = 128;
ps_params->null_data_rate = 1; /* 1 Mbps */
ret = wl12xx_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
sizeof(*ps_params));
if (ret < 0) {
wl12xx_error("cmd set_ps_mode failed");
goto out;
}
out:
kfree(ps_params);
return ret;
}
int wl12xx_cmd_read_memory(struct wl12xx *wl, u32 addr, void *answer,
size_t len)
{
struct cmd_read_write_memory *cmd;
int ret = 0;
wl12xx_debug(DEBUG_CMD, "cmd read memory");
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
WARN_ON(len > MAX_READ_SIZE);
len = min_t(size_t, len, MAX_READ_SIZE);
cmd->addr = addr;
cmd->size = len;
ret = wl12xx_cmd_send(wl, CMD_READ_MEMORY, cmd, sizeof(*cmd));
if (ret < 0) {
wl12xx_error("read memory command failed: %d", ret);
goto out;
}
/* the read command got in, we can now read the answer */
wl12xx_spi_mem_read(wl, wl->cmd_box_addr, cmd, sizeof(*cmd));
if (cmd->header.status != CMD_STATUS_SUCCESS)
wl12xx_error("error in read command result: %d",
cmd->header.status);
memcpy(answer, cmd->value, len);
out:
kfree(cmd);
return ret;
}
int wl12xx_cmd_template_set(struct wl12xx *wl, u16 cmd_id,
void *buf, size_t buf_len)
{
struct wl12xx_cmd_packet_template *cmd;
size_t cmd_len;
int ret = 0;
wl12xx_debug(DEBUG_CMD, "cmd template %d", cmd_id);
WARN_ON(buf_len > WL12XX_MAX_TEMPLATE_SIZE);
buf_len = min_t(size_t, buf_len, WL12XX_MAX_TEMPLATE_SIZE);
cmd_len = ALIGN(sizeof(*cmd) + buf_len, 4);
cmd = kzalloc(cmd_len, GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
cmd->size = cpu_to_le16(buf_len);
if (buf)
memcpy(cmd->data, buf, buf_len);
ret = wl12xx_cmd_send(wl, cmd_id, cmd, cmd_len);
if (ret < 0) {
wl12xx_warning("cmd set_template failed: %d", ret);
goto out;
}
out:
kfree(cmd);
return ret;
}