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Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1251_spi.c')
-rw-r--r--drivers/net/wireless/wl12xx/wl1251_spi.c348
1 files changed, 0 insertions, 348 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1251_spi.c b/drivers/net/wireless/wl12xx/wl1251_spi.c
deleted file mode 100644
index 27fdfaaeb07..00000000000
--- a/drivers/net/wireless/wl12xx/wl1251_spi.c
+++ /dev/null
@@ -1,348 +0,0 @@
-/*
- * This file is part of wl1251
- *
- * Copyright (C) 2008 Nokia Corporation
- *
- * Contact: Kalle Valo <kalle.valo@nokia.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * 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., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- */
-
-#include <linux/irq.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/crc7.h>
-#include <linux/spi/spi.h>
-#include <linux/spi/wl12xx.h>
-
-#include "wl1251.h"
-#include "wl1251_reg.h"
-#include "wl1251_spi.h"
-
-static irqreturn_t wl1251_irq(int irq, void *cookie)
-{
- struct wl1251 *wl;
-
- wl1251_debug(DEBUG_IRQ, "IRQ");
-
- wl = cookie;
-
- ieee80211_queue_work(wl->hw, &wl->irq_work);
-
- return IRQ_HANDLED;
-}
-
-static struct spi_device *wl_to_spi(struct wl1251 *wl)
-{
- return wl->if_priv;
-}
-
-static void wl1251_spi_reset(struct wl1251 *wl)
-{
- u8 *cmd;
- struct spi_transfer t;
- struct spi_message m;
-
- cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL);
- if (!cmd) {
- wl1251_error("could not allocate cmd for spi reset");
- return;
- }
-
- memset(&t, 0, sizeof(t));
- spi_message_init(&m);
-
- memset(cmd, 0xff, WSPI_INIT_CMD_LEN);
-
- t.tx_buf = cmd;
- t.len = WSPI_INIT_CMD_LEN;
- spi_message_add_tail(&t, &m);
-
- spi_sync(wl_to_spi(wl), &m);
-
- wl1251_dump(DEBUG_SPI, "spi reset -> ", cmd, WSPI_INIT_CMD_LEN);
-}
-
-static void wl1251_spi_wake(struct wl1251 *wl)
-{
- u8 crc[WSPI_INIT_CMD_CRC_LEN], *cmd;
- struct spi_transfer t;
- struct spi_message m;
-
- cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL);
- if (!cmd) {
- wl1251_error("could not allocate cmd for spi init");
- return;
- }
-
- memset(crc, 0, sizeof(crc));
- memset(&t, 0, sizeof(t));
- spi_message_init(&m);
-
- /*
- * Set WSPI_INIT_COMMAND
- * the data is being send from the MSB to LSB
- */
- cmd[2] = 0xff;
- cmd[3] = 0xff;
- cmd[1] = WSPI_INIT_CMD_START | WSPI_INIT_CMD_TX;
- cmd[0] = 0;
- cmd[7] = 0;
- cmd[6] |= HW_ACCESS_WSPI_INIT_CMD_MASK << 3;
- cmd[6] |= HW_ACCESS_WSPI_FIXED_BUSY_LEN & WSPI_INIT_CMD_FIXEDBUSY_LEN;
-
- if (HW_ACCESS_WSPI_FIXED_BUSY_LEN == 0)
- cmd[5] |= WSPI_INIT_CMD_DIS_FIXEDBUSY;
- else
- cmd[5] |= WSPI_INIT_CMD_EN_FIXEDBUSY;
-
- cmd[5] |= WSPI_INIT_CMD_IOD | WSPI_INIT_CMD_IP | WSPI_INIT_CMD_CS
- | WSPI_INIT_CMD_WSPI | WSPI_INIT_CMD_WS;
-
- crc[0] = cmd[1];
- crc[1] = cmd[0];
- crc[2] = cmd[7];
- crc[3] = cmd[6];
- crc[4] = cmd[5];
-
- cmd[4] |= crc7(0, crc, WSPI_INIT_CMD_CRC_LEN) << 1;
- cmd[4] |= WSPI_INIT_CMD_END;
-
- t.tx_buf = cmd;
- t.len = WSPI_INIT_CMD_LEN;
- spi_message_add_tail(&t, &m);
-
- spi_sync(wl_to_spi(wl), &m);
-
- wl1251_dump(DEBUG_SPI, "spi init -> ", cmd, WSPI_INIT_CMD_LEN);
-}
-
-static void wl1251_spi_reset_wake(struct wl1251 *wl)
-{
- wl1251_spi_reset(wl);
- wl1251_spi_wake(wl);
-}
-
-static void wl1251_spi_read(struct wl1251 *wl, int addr, void *buf,
- size_t len)
-{
- struct spi_transfer t[3];
- struct spi_message m;
- u8 *busy_buf;
- u32 *cmd;
-
- cmd = &wl->buffer_cmd;
- busy_buf = wl->buffer_busyword;
-
- *cmd = 0;
- *cmd |= WSPI_CMD_READ;
- *cmd |= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH;
- *cmd |= addr & WSPI_CMD_BYTE_ADDR;
-
- spi_message_init(&m);
- memset(t, 0, sizeof(t));
-
- t[0].tx_buf = cmd;
- t[0].len = 4;
- spi_message_add_tail(&t[0], &m);
-
- /* Busy and non busy words read */
- t[1].rx_buf = busy_buf;
- t[1].len = WL1251_BUSY_WORD_LEN;
- spi_message_add_tail(&t[1], &m);
-
- t[2].rx_buf = buf;
- t[2].len = len;
- spi_message_add_tail(&t[2], &m);
-
- spi_sync(wl_to_spi(wl), &m);
-
- /* FIXME: check busy words */
-
- wl1251_dump(DEBUG_SPI, "spi_read cmd -> ", cmd, sizeof(*cmd));
- wl1251_dump(DEBUG_SPI, "spi_read buf <- ", buf, len);
-}
-
-static void wl1251_spi_write(struct wl1251 *wl, int addr, void *buf,
- size_t len)
-{
- struct spi_transfer t[2];
- struct spi_message m;
- u32 *cmd;
-
- cmd = &wl->buffer_cmd;
-
- *cmd = 0;
- *cmd |= WSPI_CMD_WRITE;
- *cmd |= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH;
- *cmd |= addr & WSPI_CMD_BYTE_ADDR;
-
- spi_message_init(&m);
- memset(t, 0, sizeof(t));
-
- t[0].tx_buf = cmd;
- t[0].len = sizeof(*cmd);
- spi_message_add_tail(&t[0], &m);
-
- t[1].tx_buf = buf;
- t[1].len = len;
- spi_message_add_tail(&t[1], &m);
-
- spi_sync(wl_to_spi(wl), &m);
-
- wl1251_dump(DEBUG_SPI, "spi_write cmd -> ", cmd, sizeof(*cmd));
- wl1251_dump(DEBUG_SPI, "spi_write buf -> ", buf, len);
-}
-
-static void wl1251_spi_enable_irq(struct wl1251 *wl)
-{
- return enable_irq(wl->irq);
-}
-
-static void wl1251_spi_disable_irq(struct wl1251 *wl)
-{
- return disable_irq(wl->irq);
-}
-
-static const struct wl1251_if_operations wl1251_spi_ops = {
- .read = wl1251_spi_read,
- .write = wl1251_spi_write,
- .reset = wl1251_spi_reset_wake,
- .enable_irq = wl1251_spi_enable_irq,
- .disable_irq = wl1251_spi_disable_irq,
-};
-
-static int __devinit wl1251_spi_probe(struct spi_device *spi)
-{
- struct wl12xx_platform_data *pdata;
- struct ieee80211_hw *hw;
- struct wl1251 *wl;
- int ret;
-
- pdata = spi->dev.platform_data;
- if (!pdata) {
- wl1251_error("no platform data");
- return -ENODEV;
- }
-
- hw = wl1251_alloc_hw();
- if (IS_ERR(hw))
- return PTR_ERR(hw);
-
- wl = hw->priv;
-
- SET_IEEE80211_DEV(hw, &spi->dev);
- dev_set_drvdata(&spi->dev, wl);
- wl->if_priv = spi;
- wl->if_ops = &wl1251_spi_ops;
-
- /* This is the only SPI value that we need to set here, the rest
- * comes from the board-peripherals file */
- spi->bits_per_word = 32;
-
- ret = spi_setup(spi);
- if (ret < 0) {
- wl1251_error("spi_setup failed");
- goto out_free;
- }
-
- wl->set_power = pdata->set_power;
- if (!wl->set_power) {
- wl1251_error("set power function missing in platform data");
- return -ENODEV;
- }
-
- wl->irq = spi->irq;
- if (wl->irq < 0) {
- wl1251_error("irq missing in platform data");
- return -ENODEV;
- }
-
- wl->use_eeprom = pdata->use_eeprom;
-
- ret = request_irq(wl->irq, wl1251_irq, 0, DRIVER_NAME, wl);
- if (ret < 0) {
- wl1251_error("request_irq() failed: %d", ret);
- goto out_free;
- }
-
- set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
-
- disable_irq(wl->irq);
-
- ret = wl1251_init_ieee80211(wl);
- if (ret)
- goto out_irq;
-
- return 0;
-
- out_irq:
- free_irq(wl->irq, wl);
-
- out_free:
- ieee80211_free_hw(hw);
-
- return ret;
-}
-
-static int __devexit wl1251_spi_remove(struct spi_device *spi)
-{
- struct wl1251 *wl = dev_get_drvdata(&spi->dev);
-
- free_irq(wl->irq, wl);
- wl1251_free_hw(wl);
-
- return 0;
-}
-
-static struct spi_driver wl1251_spi_driver = {
- .driver = {
- .name = DRIVER_NAME,
- .bus = &spi_bus_type,
- .owner = THIS_MODULE,
- },
-
- .probe = wl1251_spi_probe,
- .remove = __devexit_p(wl1251_spi_remove),
-};
-
-static int __init wl1251_spi_init(void)
-{
- int ret;
-
- ret = spi_register_driver(&wl1251_spi_driver);
- if (ret < 0) {
- wl1251_error("failed to register spi driver: %d", ret);
- goto out;
- }
-
-out:
- return ret;
-}
-
-static void __exit wl1251_spi_exit(void)
-{
- spi_unregister_driver(&wl1251_spi_driver);
-
- wl1251_notice("unloaded");
-}
-
-module_init(wl1251_spi_init);
-module_exit(wl1251_spi_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Kalle Valo <kalle.valo@nokia.com>");
-MODULE_ALIAS("spi:wl1251");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-30 06:27:59 +0000