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path: root/drivers/net/wireless/cw1200/hwio.c
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Diffstat (limited to 'drivers/net/wireless/cw1200/hwio.c')
-rw-r--r--drivers/net/wireless/cw1200/hwio.c312
1 files changed, 0 insertions, 312 deletions
diff --git a/drivers/net/wireless/cw1200/hwio.c b/drivers/net/wireless/cw1200/hwio.c
deleted file mode 100644
index ff230b7ae..000000000
--- a/drivers/net/wireless/cw1200/hwio.c
+++ /dev/null
@@ -1,312 +0,0 @@
-/*
- * Low-level device IO routines for ST-Ericsson CW1200 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * Based on:
- * ST-Ericsson UMAC CW1200 driver, which is
- * Copyright (c) 2010, ST-Ericsson
- * Author: Ajitpal Singh <ajitpal.singh@lockless.no>
- *
- * 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.
- */
-
-#include <linux/types.h>
-
-#include "cw1200.h"
-#include "hwio.h"
-#include "hwbus.h"
-
- /* Sdio addr is 4*spi_addr */
-#define SPI_REG_ADDR_TO_SDIO(spi_reg_addr) ((spi_reg_addr) << 2)
-#define SDIO_ADDR17BIT(buf_id, mpf, rfu, reg_id_ofs) \
- ((((buf_id) & 0x1F) << 7) \
- | (((mpf) & 1) << 6) \
- | (((rfu) & 1) << 5) \
- | (((reg_id_ofs) & 0x1F) << 0))
-#define MAX_RETRY 3
-
-
-static int __cw1200_reg_read(struct cw1200_common *priv, u16 addr,
- void *buf, size_t buf_len, int buf_id)
-{
- u16 addr_sdio;
- u32 sdio_reg_addr_17bit;
-
- /* Check if buffer is aligned to 4 byte boundary */
- if (WARN_ON(((unsigned long)buf & 3) && (buf_len > 4))) {
- pr_err("buffer is not aligned.\n");
- return -EINVAL;
- }
-
- /* Convert to SDIO Register Address */
- addr_sdio = SPI_REG_ADDR_TO_SDIO(addr);
- sdio_reg_addr_17bit = SDIO_ADDR17BIT(buf_id, 0, 0, addr_sdio);
-
- return priv->hwbus_ops->hwbus_memcpy_fromio(priv->hwbus_priv,
- sdio_reg_addr_17bit,
- buf, buf_len);
-}
-
-static int __cw1200_reg_write(struct cw1200_common *priv, u16 addr,
- const void *buf, size_t buf_len, int buf_id)
-{
- u16 addr_sdio;
- u32 sdio_reg_addr_17bit;
-
- /* Convert to SDIO Register Address */
- addr_sdio = SPI_REG_ADDR_TO_SDIO(addr);
- sdio_reg_addr_17bit = SDIO_ADDR17BIT(buf_id, 0, 0, addr_sdio);
-
- return priv->hwbus_ops->hwbus_memcpy_toio(priv->hwbus_priv,
- sdio_reg_addr_17bit,
- buf, buf_len);
-}
-
-static inline int __cw1200_reg_read_32(struct cw1200_common *priv,
- u16 addr, u32 *val)
-{
- __le32 tmp;
- int i = __cw1200_reg_read(priv, addr, &tmp, sizeof(tmp), 0);
- *val = le32_to_cpu(tmp);
- return i;
-}
-
-static inline int __cw1200_reg_write_32(struct cw1200_common *priv,
- u16 addr, u32 val)
-{
- __le32 tmp = cpu_to_le32(val);
- return __cw1200_reg_write(priv, addr, &tmp, sizeof(tmp), 0);
-}
-
-static inline int __cw1200_reg_read_16(struct cw1200_common *priv,
- u16 addr, u16 *val)
-{
- __le16 tmp;
- int i = __cw1200_reg_read(priv, addr, &tmp, sizeof(tmp), 0);
- *val = le16_to_cpu(tmp);
- return i;
-}
-
-static inline int __cw1200_reg_write_16(struct cw1200_common *priv,
- u16 addr, u16 val)
-{
- __le16 tmp = cpu_to_le16(val);
- return __cw1200_reg_write(priv, addr, &tmp, sizeof(tmp), 0);
-}
-
-int cw1200_reg_read(struct cw1200_common *priv, u16 addr, void *buf,
- size_t buf_len)
-{
- int ret;
- priv->hwbus_ops->lock(priv->hwbus_priv);
- ret = __cw1200_reg_read(priv, addr, buf, buf_len, 0);
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- return ret;
-}
-
-int cw1200_reg_write(struct cw1200_common *priv, u16 addr, const void *buf,
- size_t buf_len)
-{
- int ret;
- priv->hwbus_ops->lock(priv->hwbus_priv);
- ret = __cw1200_reg_write(priv, addr, buf, buf_len, 0);
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- return ret;
-}
-
-int cw1200_data_read(struct cw1200_common *priv, void *buf, size_t buf_len)
-{
- int ret, retry = 1;
- int buf_id_rx = priv->buf_id_rx;
-
- priv->hwbus_ops->lock(priv->hwbus_priv);
-
- while (retry <= MAX_RETRY) {
- ret = __cw1200_reg_read(priv,
- ST90TDS_IN_OUT_QUEUE_REG_ID, buf,
- buf_len, buf_id_rx + 1);
- if (!ret) {
- buf_id_rx = (buf_id_rx + 1) & 3;
- priv->buf_id_rx = buf_id_rx;
- break;
- } else {
- retry++;
- mdelay(1);
- pr_err("error :[%d]\n", ret);
- }
- }
-
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- return ret;
-}
-
-int cw1200_data_write(struct cw1200_common *priv, const void *buf,
- size_t buf_len)
-{
- int ret, retry = 1;
- int buf_id_tx = priv->buf_id_tx;
-
- priv->hwbus_ops->lock(priv->hwbus_priv);
-
- while (retry <= MAX_RETRY) {
- ret = __cw1200_reg_write(priv,
- ST90TDS_IN_OUT_QUEUE_REG_ID, buf,
- buf_len, buf_id_tx);
- if (!ret) {
- buf_id_tx = (buf_id_tx + 1) & 31;
- priv->buf_id_tx = buf_id_tx;
- break;
- } else {
- retry++;
- mdelay(1);
- pr_err("error :[%d]\n", ret);
- }
- }
-
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- return ret;
-}
-
-int cw1200_indirect_read(struct cw1200_common *priv, u32 addr, void *buf,
- size_t buf_len, u32 prefetch, u16 port_addr)
-{
- u32 val32 = 0;
- int i, ret;
-
- if ((buf_len / 2) >= 0x1000) {
- pr_err("Can't read more than 0xfff words.\n");
- return -EINVAL;
- }
-
- priv->hwbus_ops->lock(priv->hwbus_priv);
- /* Write address */
- ret = __cw1200_reg_write_32(priv, ST90TDS_SRAM_BASE_ADDR_REG_ID, addr);
- if (ret < 0) {
- pr_err("Can't write address register.\n");
- goto out;
- }
-
- /* Read CONFIG Register Value - We will read 32 bits */
- ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
- if (ret < 0) {
- pr_err("Can't read config register.\n");
- goto out;
- }
-
- /* Set PREFETCH bit */
- ret = __cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID,
- val32 | prefetch);
- if (ret < 0) {
- pr_err("Can't write prefetch bit.\n");
- goto out;
- }
-
- /* Check for PRE-FETCH bit to be cleared */
- for (i = 0; i < 20; i++) {
- ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
- if (ret < 0) {
- pr_err("Can't check prefetch bit.\n");
- goto out;
- }
- if (!(val32 & prefetch))
- break;
-
- mdelay(i);
- }
-
- if (val32 & prefetch) {
- pr_err("Prefetch bit is not cleared.\n");
- goto out;
- }
-
- /* Read data port */
- ret = __cw1200_reg_read(priv, port_addr, buf, buf_len, 0);
- if (ret < 0) {
- pr_err("Can't read data port.\n");
- goto out;
- }
-
-out:
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- return ret;
-}
-
-int cw1200_apb_write(struct cw1200_common *priv, u32 addr, const void *buf,
- size_t buf_len)
-{
- int ret;
-
- if ((buf_len / 2) >= 0x1000) {
- pr_err("Can't write more than 0xfff words.\n");
- return -EINVAL;
- }
-
- priv->hwbus_ops->lock(priv->hwbus_priv);
-
- /* Write address */
- ret = __cw1200_reg_write_32(priv, ST90TDS_SRAM_BASE_ADDR_REG_ID, addr);
- if (ret < 0) {
- pr_err("Can't write address register.\n");
- goto out;
- }
-
- /* Write data port */
- ret = __cw1200_reg_write(priv, ST90TDS_SRAM_DPORT_REG_ID,
- buf, buf_len, 0);
- if (ret < 0) {
- pr_err("Can't write data port.\n");
- goto out;
- }
-
-out:
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- return ret;
-}
-
-int __cw1200_irq_enable(struct cw1200_common *priv, int enable)
-{
- u32 val32;
- u16 val16;
- int ret;
-
- if (HIF_8601_SILICON == priv->hw_type) {
- ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
- if (ret < 0) {
- pr_err("Can't read config register.\n");
- return ret;
- }
-
- if (enable)
- val32 |= ST90TDS_CONF_IRQ_RDY_ENABLE;
- else
- val32 &= ~ST90TDS_CONF_IRQ_RDY_ENABLE;
-
- ret = __cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID, val32);
- if (ret < 0) {
- pr_err("Can't write config register.\n");
- return ret;
- }
- } else {
- ret = __cw1200_reg_read_16(priv, ST90TDS_CONFIG_REG_ID, &val16);
- if (ret < 0) {
- pr_err("Can't read control register.\n");
- return ret;
- }
-
- if (enable)
- val16 |= ST90TDS_CONT_IRQ_RDY_ENABLE;
- else
- val16 &= ~ST90TDS_CONT_IRQ_RDY_ENABLE;
-
- ret = __cw1200_reg_write_16(priv, ST90TDS_CONFIG_REG_ID, val16);
- if (ret < 0) {
- pr_err("Can't write control register.\n");
- return ret;
- }
- }
- return 0;
-}
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