forked from Minki/linux
354 lines
7.8 KiB
C
354 lines
7.8 KiB
C
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#include "cmd.h"
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#include <linux/module.h>
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#include <linux/crc7.h>
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#include <linux/spi/spi.h>
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#include "wl12xx.h"
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#include "wl12xx_80211.h"
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#include "reg.h"
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#include "spi.h"
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#include "ps.h"
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int wl12xx_cmd_send(struct wl12xx *wl, u16 type, void *buf, size_t buf_len)
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{
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struct wl12xx_command cmd;
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unsigned long timeout;
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size_t cmd_len;
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u32 intr;
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int ret = 0;
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memset(&cmd, 0, sizeof(cmd));
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cmd.id = type;
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cmd.status = 0;
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memcpy(cmd.parameters, buf, buf_len);
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cmd_len = ALIGN(buf_len, 4) + CMDMBOX_HEADER_LEN;
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wl12xx_ps_elp_wakeup(wl);
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wl12xx_spi_mem_write(wl, wl->cmd_box_addr, &cmd, cmd_len);
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wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
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timeout = jiffies + msecs_to_jiffies(WL12XX_COMMAND_TIMEOUT);
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intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
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while (!(intr & wl->chip.intr_cmd_complete)) {
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if (time_after(jiffies, timeout)) {
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wl12xx_error("command complete timeout");
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ret = -ETIMEDOUT;
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goto out;
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}
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msleep(1);
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intr = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
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}
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wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_ACK,
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wl->chip.intr_cmd_complete);
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out:
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wl12xx_ps_elp_sleep(wl);
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return ret;
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}
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int wl12xx_cmd_test(struct wl12xx *wl, void *buf, size_t buf_len, u8 answer)
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{
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int ret;
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wl12xx_debug(DEBUG_CMD, "cmd test");
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ret = wl12xx_cmd_send(wl, CMD_TEST, buf, buf_len);
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if (ret < 0) {
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wl12xx_warning("TEST command failed");
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return ret;
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}
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if (answer) {
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struct wl12xx_command *cmd_answer;
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/*
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* The test command got in, we can read the answer.
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* The answer would be a wl12xx_command, where the
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* parameter array contains the actual answer.
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*/
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wl12xx_ps_elp_wakeup(wl);
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wl12xx_spi_mem_read(wl, wl->cmd_box_addr, buf, buf_len);
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wl12xx_ps_elp_sleep(wl);
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cmd_answer = buf;
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if (cmd_answer->status != CMD_STATUS_SUCCESS)
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wl12xx_error("TEST command answer error: %d",
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cmd_answer->status);
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}
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return 0;
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}
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int wl12xx_cmd_interrogate(struct wl12xx *wl, u16 ie_id, u16 ie_len,
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void *answer)
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{
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struct wl12xx_command *cmd;
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struct acx_header header;
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int ret;
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wl12xx_debug(DEBUG_CMD, "cmd interrogate");
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header.id = ie_id;
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header.len = ie_len - sizeof(header);
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ret = wl12xx_cmd_send(wl, CMD_INTERROGATE, &header, sizeof(header));
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if (ret < 0) {
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wl12xx_error("INTERROGATE command failed");
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return ret;
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}
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wl12xx_ps_elp_wakeup(wl);
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/* the interrogate command got in, we can read the answer */
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wl12xx_spi_mem_read(wl, wl->cmd_box_addr, answer,
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CMDMBOX_HEADER_LEN + ie_len);
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wl12xx_ps_elp_sleep(wl);
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cmd = answer;
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if (cmd->status != CMD_STATUS_SUCCESS)
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wl12xx_error("INTERROGATE command error: %d",
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cmd->status);
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return 0;
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}
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int wl12xx_cmd_configure(struct wl12xx *wl, void *ie, int ie_len)
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{
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int ret;
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wl12xx_debug(DEBUG_CMD, "cmd configure");
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ret = wl12xx_cmd_send(wl, CMD_CONFIGURE, ie,
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ie_len);
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if (ret < 0) {
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wl12xx_warning("CONFIGURE command NOK");
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return ret;
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}
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return 0;
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}
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int wl12xx_cmd_vbm(struct wl12xx *wl, u8 identity,
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void *bitmap, u16 bitmap_len, u8 bitmap_control)
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{
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struct vbm_update_request vbm;
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int ret;
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wl12xx_debug(DEBUG_CMD, "cmd vbm");
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/* Count and period will be filled by the target */
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vbm.tim.bitmap_ctrl = bitmap_control;
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if (bitmap_len > PARTIAL_VBM_MAX) {
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wl12xx_warning("cmd vbm len is %d B, truncating to %d",
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bitmap_len, PARTIAL_VBM_MAX);
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bitmap_len = PARTIAL_VBM_MAX;
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}
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memcpy(vbm.tim.pvb_field, bitmap, bitmap_len);
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vbm.tim.identity = identity;
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vbm.tim.length = bitmap_len + 3;
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vbm.len = cpu_to_le16(bitmap_len + 5);
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ret = wl12xx_cmd_send(wl, CMD_VBM, &vbm, sizeof(vbm));
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if (ret < 0) {
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wl12xx_error("VBM command failed");
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return ret;
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}
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return 0;
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}
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int wl12xx_cmd_data_path(struct wl12xx *wl, u8 channel, u8 enable)
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{
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int ret;
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u16 cmd_rx, cmd_tx;
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wl12xx_debug(DEBUG_CMD, "cmd data path");
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if (enable) {
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cmd_rx = CMD_ENABLE_RX;
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cmd_tx = CMD_ENABLE_TX;
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} else {
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cmd_rx = CMD_DISABLE_RX;
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cmd_tx = CMD_DISABLE_TX;
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}
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ret = wl12xx_cmd_send(wl, cmd_rx, &channel, sizeof(channel));
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if (ret < 0) {
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wl12xx_error("rx %s cmd for channel %d failed",
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enable ? "start" : "stop", channel);
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return ret;
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}
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wl12xx_debug(DEBUG_BOOT, "rx %s cmd channel %d",
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enable ? "start" : "stop", channel);
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ret = wl12xx_cmd_send(wl, cmd_tx, &channel, sizeof(channel));
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if (ret < 0) {
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wl12xx_error("tx %s cmd for channel %d failed",
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enable ? "start" : "stop", channel);
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return ret;
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}
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wl12xx_debug(DEBUG_BOOT, "tx %s cmd channel %d",
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enable ? "start" : "stop", channel);
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return 0;
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}
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int wl12xx_cmd_join(struct wl12xx *wl, u8 bss_type, u8 dtim_interval,
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u16 beacon_interval, u8 wait)
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{
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unsigned long timeout;
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struct cmd_join join = {};
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int ret, i;
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u8 *bssid;
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/* FIXME: this should be in main.c */
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ret = wl12xx_acx_frame_rates(wl, DEFAULT_HW_GEN_TX_RATE,
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DEFAULT_HW_GEN_MODULATION_TYPE,
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wl->tx_mgmt_frm_rate,
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wl->tx_mgmt_frm_mod);
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if (ret < 0)
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return ret;
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wl12xx_debug(DEBUG_CMD, "cmd join");
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/* Reverse order BSSID */
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bssid = (u8 *)&join.bssid_lsb;
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for (i = 0; i < ETH_ALEN; i++)
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bssid[i] = wl->bssid[ETH_ALEN - i - 1];
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join.rx_config_options = wl->rx_config;
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join.rx_filter_options = wl->rx_filter;
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join.basic_rate_set = RATE_MASK_1MBPS | RATE_MASK_2MBPS |
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RATE_MASK_5_5MBPS | RATE_MASK_11MBPS;
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join.beacon_interval = beacon_interval;
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join.dtim_interval = dtim_interval;
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join.bss_type = bss_type;
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join.channel = wl->channel;
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join.ctrl = JOIN_CMD_CTRL_TX_FLUSH;
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ret = wl12xx_cmd_send(wl, CMD_START_JOIN, &join, sizeof(join));
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if (ret < 0) {
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wl12xx_error("failed to initiate cmd join");
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return ret;
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}
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timeout = msecs_to_jiffies(JOIN_TIMEOUT);
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/*
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* ugly hack: we should wait for JOIN_EVENT_COMPLETE_ID but to
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* simplify locking we just sleep instead, for now
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*/
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if (wait)
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msleep(10);
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return 0;
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}
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int wl12xx_cmd_ps_mode(struct wl12xx *wl, u8 ps_mode)
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{
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int ret;
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struct acx_ps_params ps_params;
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/* FIXME: this should be in ps.c */
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ret = wl12xx_acx_wake_up_conditions(wl, wl->listen_int);
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if (ret < 0) {
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wl12xx_error("Couldnt set wake up conditions");
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return ret;
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}
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wl12xx_debug(DEBUG_CMD, "cmd set ps mode");
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ps_params.ps_mode = ps_mode;
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ps_params.send_null_data = 1;
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ps_params.retries = 5;
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ps_params.hang_over_period = 128;
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ps_params.null_data_rate = 1; /* 1 Mbps */
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ret = wl12xx_cmd_send(wl, CMD_SET_PS_MODE, &ps_params,
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sizeof(ps_params));
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if (ret < 0) {
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wl12xx_error("cmd set_ps_mode failed");
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return ret;
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}
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return 0;
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}
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int wl12xx_cmd_read_memory(struct wl12xx *wl, u32 addr, u32 len, void *answer)
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{
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struct cmd_read_write_memory mem_cmd, *mem_answer;
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struct wl12xx_command cmd;
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int ret;
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wl12xx_debug(DEBUG_CMD, "cmd read memory");
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memset(&mem_cmd, 0, sizeof(mem_cmd));
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mem_cmd.addr = addr;
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mem_cmd.size = len;
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ret = wl12xx_cmd_send(wl, CMD_READ_MEMORY, &mem_cmd, sizeof(mem_cmd));
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if (ret < 0) {
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wl12xx_error("read memory command failed: %d", ret);
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return ret;
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}
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/* the read command got in, we can now read the answer */
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wl12xx_spi_mem_read(wl, wl->cmd_box_addr, &cmd,
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CMDMBOX_HEADER_LEN + sizeof(mem_cmd));
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if (cmd.status != CMD_STATUS_SUCCESS)
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wl12xx_error("error in read command result: %d", cmd.status);
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mem_answer = (struct cmd_read_write_memory *) cmd.parameters;
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memcpy(answer, mem_answer->value, len);
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return 0;
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}
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int wl12xx_cmd_template_set(struct wl12xx *wl, u16 cmd_id,
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void *buf, size_t buf_len)
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{
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struct wl12xx_cmd_packet_template template;
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int ret;
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wl12xx_debug(DEBUG_CMD, "cmd template %d", cmd_id);
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memset(&template, 0, sizeof(template));
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WARN_ON(buf_len > WL12XX_MAX_TEMPLATE_SIZE);
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buf_len = min_t(size_t, buf_len, WL12XX_MAX_TEMPLATE_SIZE);
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template.size = cpu_to_le16(buf_len);
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if (buf)
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memcpy(template.template, buf, buf_len);
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ret = wl12xx_cmd_send(wl, cmd_id, &template,
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sizeof(template.size) + buf_len);
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if (ret < 0) {
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wl12xx_warning("cmd set_template failed: %d", ret);
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return ret;
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}
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return 0;
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}
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