From 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Fri, 25 Mar 2016 03:53:42 -0300 Subject: Linux-libre 4.5-gnu --- drivers/net/wireless/cw1200/hwio.c | 312 ------------------------------------- 1 file changed, 312 deletions(-) delete mode 100644 drivers/net/wireless/cw1200/hwio.c (limited to 'drivers/net/wireless/cw1200/hwio.c') 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 - * - * Based on: - * ST-Ericsson UMAC CW1200 driver, which is - * Copyright (c) 2010, ST-Ericsson - * Author: Ajitpal Singh - * - * 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 - -#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; -} -- cgit v1.2.3-54-g00ecf