The patch contains cw1200 registry and memory map, as well as low-level
memory and regestry access primitives.
Signed-off-by: Dmitry Tarnyagin <dmitry.tarnyagin@xxxxxxxxxxxxxx>
---
drivers/staging/cw1200/hwio.c | 286 +++++++++++++++++++++++++++++++++++++++++
drivers/staging/cw1200/hwio.h | 243 ++++++++++++++++++++++++++++++++++
2 files changed, 529 insertions(+), 0 deletions(-)
create mode 100644 drivers/staging/cw1200/hwio.c
create mode 100644 drivers/staging/cw1200/hwio.h
diff --git a/drivers/staging/cw1200/hwio.c b/drivers/staging/cw1200/hwio.c
new file mode 100644
index 0000000..c0b63ac
--- /dev/null
+++ b/drivers/staging/cw1200/hwio.c
@@ -0,0 +1,286 @@
+/*
+ * Low-level device IO routines for ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@xxxxxxxxxxxxxx>
+ *
+ * Based on:
+ * ST-Ericsson UMAC CW1200 driver, which is
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Ajitpal Singh <ajitpal.singh@xxxxxxxxxxxxxx>
+ *
+ * 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 "sbus.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))) {
+ cw1200_dbg(CW1200_DBG_ERROR,
+ "%s: buffer is not aligned.\n", __func__);
+ 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);
+
+ BUG_ON(!priv->sbus_ops);
+ return priv->sbus_ops->sbus_memcpy_fromio(priv->sbus_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 ;
+
+#if 0
+ /* Check if buffer is aligned to 4 byte boundary */
+ if (WARN_ON(((unsigned long)buf & 3) && (buf_len > 4))) {
+ cw1200_dbg(CW1200_DBG_ERROR, "%s: buffer is not aligned.\n",
+ __func__);
+ return -EINVAL;
+ }
+#endif
+
+ /* 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);
+
+ BUG_ON(!priv->sbus_ops);
+ return priv->sbus_ops->sbus_memcpy_toio(priv->sbus_priv,
+ sdio_reg_addr_17bit,
+ buf, buf_len);
+}
+
+static inline int __cw1200_reg_read_32(struct cw1200_common *priv,
+ u16 addr, u32 *val)
+{
+ return __cw1200_reg_read(priv, addr, val, sizeof(val), 0);
+}
+
+static inline int __cw1200_reg_write_32(struct cw1200_common *priv,
+ u16 addr, u32 val)
+{
+ return __cw1200_reg_write(priv, addr, &val, sizeof(val), 0);
+}
+
+int cw1200_reg_read(struct cw1200_common *priv, u16 addr, void *buf,
+ size_t buf_len)
+{
+ int ret;
+ BUG_ON(!priv->sbus_ops);
+ priv->sbus_ops->lock(priv->sbus_priv);
+ ret = __cw1200_reg_read(priv, addr, buf, buf_len, 0);
+ priv->sbus_ops->unlock(priv->sbus_priv);
+ return ret;
+}
+
+int cw1200_reg_write(struct cw1200_common *priv, u16 addr, const void *buf,
+ size_t buf_len)
+{
+ int ret;
+ BUG_ON(!priv->sbus_ops);
+ priv->sbus_ops->lock(priv->sbus_priv);
+ ret = __cw1200_reg_write(priv, addr, buf, buf_len, 0);
+ priv->sbus_ops->unlock(priv->sbus_priv);
+ return ret;
+}
+
+int cw1200_data_read(struct cw1200_common *priv, void *buf, size_t buf_len)
+{
+ int ret, retry = 1;
+ BUG_ON(!priv->sbus_ops);
+ priv->sbus_ops->lock(priv->sbus_priv);
+ {
+ int buf_id_rx = priv->buf_id_rx;
+ 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);
+ cw1200_dbg(CW1200_DBG_ERROR, "%s,error :[%d]\n",
+ __func__, ret);
+ }
+ }
+ }
+ priv->sbus_ops->unlock(priv->sbus_priv);
+ return ret;
+}
+
+int cw1200_data_write(struct cw1200_common *priv, const void *buf,
+ size_t buf_len)
+{
+ int ret, retry = 1;
+ BUG_ON(!priv->sbus_ops);
+ priv->sbus_ops->lock(priv->sbus_priv);
+ {
+ int buf_id_tx = priv->buf_id_tx;
+ 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);
+ cw1200_dbg(CW1200_DBG_ERROR, "%s,error :[%d]\n",
+ __func__, ret);
+ }
+ }
+ }
+ priv->sbus_ops->unlock(priv->sbus_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) {
+ cw1200_dbg(CW1200_DBG_ERROR,
+ "%s: Can't read more than 0xfff words.\n",
+ __func__);
+ WARN_ON(1);
+ return -EINVAL;
+ goto out;
+ }
+
+ priv->sbus_ops->lock(priv->sbus_priv);
+ /* Write address */
+ ret = __cw1200_reg_write_32(priv, ST90TDS_SRAM_BASE_ADDR_REG_ID, addr);
+ if (ret < 0) {
+ cw1200_dbg(CW1200_DBG_ERROR,
+ "%s: Can't write address register.\n",
+ __func__);
+ 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) {
+ cw1200_dbg(CW1200_DBG_ERROR,
+ "%s: Can't read config register.\n",
+ __func__);
+ goto out;
+ }
+
+ /* Set PREFETCH bit */
+ ret = __cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID,
+ val32 | prefetch);
+ if (ret < 0) {
+ cw1200_dbg(CW1200_DBG_ERROR,
+ "%s: Can't write prefetch bit.\n",
+ __func__);
+ 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) {
+ cw1200_dbg(CW1200_DBG_ERROR,
+ "%s: Can't check prefetch bit.\n",
+ __func__);
+ goto out;
+ }
+ if (!(val32 & prefetch))
+ break;
+
+ mdelay(i);
+ }
+
+ if (val32 & prefetch) {
+ cw1200_dbg(CW1200_DBG_ERROR,
+ "%s: Prefetch bit is not cleared.\n",
+ __func__);
+ goto out;
+ }
+
+ /* Read data port */
+ ret = __cw1200_reg_read(priv, port_addr, buf, buf_len, 0);
+ if (ret < 0) {
+ cw1200_dbg(CW1200_DBG_ERROR,
+ "%s: Can't read data port.\n",
+ __func__);
+ goto out;
+ }
+
+out:
+ priv->sbus_ops->unlock(priv->sbus_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) {
+ cw1200_dbg(CW1200_DBG_ERROR,
+ "%s: Can't wrire more than 0xfff words.\n",
+ __func__);
+ WARN_ON(1);
+ return -EINVAL;
+ }
+
+ priv->sbus_ops->lock(priv->sbus_priv);
+
+ /* Write address */
+ ret = __cw1200_reg_write_32(priv, ST90TDS_SRAM_BASE_ADDR_REG_ID, addr);
+ if (ret < 0) {
+ cw1200_dbg(CW1200_DBG_ERROR,
+ "%s: Can't write address register.\n",
+ __func__);
+ goto out;
+ }
+
+ /* Write data port */
+ ret = __cw1200_reg_write(priv, ST90TDS_SRAM_DPORT_REG_ID,
+ buf, buf_len, 0);
+ if (ret < 0) {
+ cw1200_dbg(CW1200_DBG_ERROR, "%s: Can't write data port.\n",
+ __func__);
+ goto out;
+ }
+
+out:
+ priv->sbus_ops->unlock(priv->sbus_priv);
+ return ret;
+}
diff --git a/drivers/staging/cw1200/hwio.h b/drivers/staging/cw1200/hwio.h
new file mode 100644
index 0000000..25c8f6b
--- /dev/null
+++ b/drivers/staging/cw1200/hwio.h
@@ -0,0 +1,243 @@
+/*
+ * Low-level API for mac80211 ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@xxxxxxxxxxxxxx>
+ *
+ * Based on:
+ * ST-Ericsson UMAC CW1200 driver which is
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Ajitpal Singh <ajitpal.singh@xxxxxxxxxxxxxx>
+ *
+ * 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.
+ */
+
+#ifndef CW1200_HWIO_H_INCLUDED
+#define CW1200_HWIO_H_INCLUDED
+
+/* extern */ struct cw1200_common;
+
+/* DPLL initial values */
+#define DPLL_INIT_VAL_9000 (0x00000191)
+#define DPLL_INIT_VAL_CW1200 (0x0EC4F121)
+
+/* Hardware Type Definitions */
+#define HIF_8601_VERSATILE (0)
+#define HIF_8601_SILICON (1)
+#define HIF_9000_SILICON_VERSTAILE (2)
+
+#define CW1200_CUT_11_ID_STR (0x302E3830)
+#define CW1200_CUT_22_ID_STR1 (0x302e3132)
+#define CW1200_CUT_22_ID_STR2 (0x32302e30)
+#define CW1200_CUT_22_ID_STR3 (0x3335)
+#define CW1200_CUT_ID_ADDR (0xFFF17F90)
+#define CW1200_CUT2_ID_ADDR (0xFFF1FF90)
+
+/* Download control area */
+/* boot loader start address in SRAM */
+#define DOWNLOAD_BOOT_LOADER_OFFSET (0x00000000)
+/* 32K, 0x4000 to 0xDFFF */
+#define DOWNLOAD_FIFO_OFFSET (0x00004000)
+/* 32K */
+#define DOWNLOAD_FIFO_SIZE (0x00008000)
+/* 128 bytes, 0xFF80 to 0xFFFF */
+#define DOWNLOAD_CTRL_OFFSET (0x0000FF80)
+#define DOWNLOAD_CTRL_DATA_DWORDS (32-6)
+
+struct download_cntl_t {
+ /* size of whole firmware file (including Cheksum), host init */
+ u32 ImageSize;
+ /* downloading flags */
+ u32 Flags;
+ /* No. of bytes put into the download, init & updated by host */
+ u32 Put;
+ /* last traced program counter, last ARM reg_pc */
+ u32 TracePc;
+ /* No. of bytes read from the download, host init, device updates */
+ u32 Get;
+ /* r0, boot losader status, host init to pending, device updates */
+ u32 Status;
+ /* Extra debug info, r1 to r14 if status=r0=DOWNLOAD_EXCEPTION */
+ u32 DebugData[DOWNLOAD_CTRL_DATA_DWORDS];
+};
+
+#define DOWNLOAD_IMAGE_SIZE_REG \
+ (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, ImageSize))
+#define DOWNLOAD_FLAGS_REG \
+ (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, Flags))
+#define DOWNLOAD_PUT_REG \
+ (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, Put))
+#define DOWNLOAD_TRACE_PC_REG \
+ (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, TracePc))
+#define DOWNLOAD_GET_REG \
+ (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, Get))
+#define DOWNLOAD_STATUS_REG \
+ (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, Status))
+#define DOWNLOAD_DEBUG_DATA_REG \
+ (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, DebugData))
+#define DOWNLOAD_DEBUG_DATA_LEN (108)
+
+#define DOWNLOAD_BLOCK_SIZE (1024)
+
+/* For boot loader detection */
+#define DOWNLOAD_ARE_YOU_HERE (0x87654321)
+#define DOWNLOAD_I_AM_HERE (0x12345678)
+
+/* Download error code */
+#define DOWNLOAD_PENDING (0xFFFFFFFF)
+#define DOWNLOAD_SUCCESS (0)
+#define DOWNLOAD_EXCEPTION (1)
+#define DOWNLOAD_ERR_MEM_1 (2)
+#define DOWNLOAD_ERR_MEM_2 (3)
+#define DOWNLOAD_ERR_SOFTWARE (4)
+#define DOWNLOAD_ERR_FILE_SIZE (5)
+#define DOWNLOAD_ERR_CHECKSUM (6)
+#define DOWNLOAD_ERR_OVERFLOW (7)
+#define DOWNLOAD_ERR_IMAGE (8)
+#define DOWNLOAD_ERR_HOST (9)
+#define DOWNLOAD_ERR_ABORT (10)
+
+
+#define SYS_BASE_ADDR_SILICON (0)
+#define PAC_BASE_ADDRESS_SILICON (SYS_BASE_ADDR_SILICON + 0x09000000)
+#define PAC_SHARED_MEMORY_SILICON (PAC_BASE_ADDRESS_SILICON)
+
+#define CW12000_APB(addr) (PAC_SHARED_MEMORY_SILICON + (addr))
+
+/* ***************************************************************
+*Device register definitions
+*************************************************************** */
+/* WBF - SPI Register Addresses */
+#define ST90TDS_ADDR_ID_BASE (0x0000)
+/* 16/32 bits */
+#define ST90TDS_CONFIG_REG_ID (0x0000)
+/* 16/32 bits */
+#define ST90TDS_CONTROL_REG_ID (0x0001)
+/* 16 bits, Q mode W/R */
+#define ST90TDS_IN_OUT_QUEUE_REG_ID (0x0002)
+/* 32 bits, AHB bus R/W */
+#define ST90TDS_AHB_DPORT_REG_ID (0x0003)
+/* 16/32 bits */
+#define ST90TDS_SRAM_BASE_ADDR_REG_ID (0x0004)
+/* 32 bits, APB bus R/W */
+#define ST90TDS_SRAM_DPORT_REG_ID (0x0005)
+/* 32 bits, t_settle/general */
+#define ST90TDS_TSET_GEN_R_W_REG_ID (0x0006)
+/* 16 bits, Q mode read, no length */
+#define ST90TDS_FRAME_OUT_REG_ID (0x0007)
+#define ST90TDS_ADDR_ID_MAX (ST90TDS_FRAME_OUT_REG_ID)
+
+/* WBF - Control register bit set */
+/* next o/p length, bit 11 to 0 */
+#define ST90TDS_CONT_NEXT_LEN_MASK (0x0FFF)
+#define ST90TDS_CONT_WUP_BIT (BIT(12))
+#define ST90TDS_CONT_RDY_BIT (BIT(13))
+#define ST90TDS_CONT_IRQ_ENABLE (BIT(14))
+#define ST90TDS_CONT_RDY_ENABLE (BIT(15))
+#define ST90TDS_CONT_IRQ_RDY_ENABLE (BIT(14)|BIT(15))
+
+/* SPI Config register bit set */
+#define ST90TDS_CONFIG_FRAME_BIT (BIT(2))
+#define ST90TDS_CONFIG_WORD_MODE_BITS (BIT(3)|BIT(4))
+#define ST90TDS_CONFIG_WORD_MODE_1 (BIT(3))
+#define ST90TDS_CONFIG_WORD_MODE_2 (BIT(4))
+#define ST90TDS_CONFIG_ERROR_0_BIT (BIT(5))
+#define ST90TDS_CONFIG_ERROR_1_BIT (BIT(6))
+#define ST90TDS_CONFIG_ERROR_2_BIT (BIT(7))
+/* TBD: Sure??? */
+#define ST90TDS_CONFIG_CSN_FRAME_BIT (BIT(7))
+#define ST90TDS_CONFIG_ERROR_3_BIT (BIT(8))
+#define ST90TDS_CONFIG_ERROR_4_BIT (BIT(9))
+/* QueueM */
+#define ST90TDS_CONFIG_ACCESS_MODE_BIT (BIT(10))
+/* AHB bus */
+#define ST90TDS_CONFIG_AHB_PFETCH_BIT (BIT(11))
+#define ST90TDS_CONFIG_CPU_CLK_DIS_BIT (BIT(12))
+/* APB bus */
+#define ST90TDS_CONFIG_PFETCH_BIT (BIT(13))
+/* cpu reset */
+#define ST90TDS_CONFIG_CPU_RESET_BIT (BIT(14))
+#define ST90TDS_CONFIG_CLEAR_INT_BIT (BIT(15))
+
+/* For CW1200 the IRQ Enable and Ready Bits are in CONFIG register */
+#define ST90TDS_CONF_IRQ_RDY_ENABLE (BIT(16)|BIT(17))
+
+int cw1200_data_read(struct cw1200_common *priv,
+ void *buf, size_t buf_len);
+int cw1200_data_write(struct cw1200_common *priv,
+ const void *buf, size_t buf_len);
+
+int cw1200_reg_read(struct cw1200_common *priv, u16 addr,
+ void *buf, size_t buf_len);
+int cw1200_reg_write(struct cw1200_common *priv, u16 addr,
+ const void *buf, size_t buf_len);
+
+static inline int cw1200_reg_read_16(struct cw1200_common *priv,
+ u16 addr, u16 *val)
+{
+ u32 bigVal;
+ int ret;
+ ret = cw1200_reg_read(priv, addr, &bigVal, sizeof(bigVal));
+ *val = (u16)bigVal;
+ return ret;
+}
+
+static inline int cw1200_reg_write_16(struct cw1200_common *priv,
+ u16 addr, u16 val)
+{
+ u32 bigVal = (u32)val;
+ return cw1200_reg_write(priv, addr, &bigVal, sizeof(bigVal));
+}
+
+static inline int cw1200_reg_read_32(struct cw1200_common *priv,
+ u16 addr, u32 *val)
+{
+ return cw1200_reg_read(priv, addr, val, sizeof(val));
+}
+
+static inline int cw1200_reg_write_32(struct cw1200_common *priv,
+ u16 addr, u32 val)
+{
+ return cw1200_reg_write(priv, addr, &val, sizeof(val));
+}
+
+int cw1200_indirect_read(struct cw1200_common *priv, u32 addr, void *buf,
+ size_t buf_len, u32 prefetch, u16 port_addr);
+int cw1200_apb_write(struct cw1200_common *priv, u32 addr, const void *buf,
+ size_t buf_len);
+
+static inline int cw1200_apb_read(struct cw1200_common *priv, u32 addr,
+ void *buf, size_t buf_len)
+{
+ return cw1200_indirect_read(priv, addr, buf, buf_len,
+ ST90TDS_CONFIG_PFETCH_BIT, ST90TDS_SRAM_DPORT_REG_ID);
+}
+
+static inline int cw1200_ahb_read(struct cw1200_common *priv, u32 addr,
+ void *buf, size_t buf_len)
+{
+ return cw1200_indirect_read(priv, addr, buf, buf_len,
+ ST90TDS_CONFIG_AHB_PFETCH_BIT, ST90TDS_AHB_DPORT_REG_ID);
+}
+
+static inline int cw1200_apb_read_32(struct cw1200_common *priv,
+ u32 addr, u32 *val)
+{
+ return cw1200_apb_read(priv, addr, val, sizeof(val));
+}
+
+static inline int cw1200_apb_write_32(struct cw1200_common *priv,
+ u32 addr, u32 val)
+{
+ return cw1200_apb_write(priv, addr, &val, sizeof(val));
+}
+
+static inline int cw1200_ahb_read_32(struct cw1200_common *priv,
+ u32 addr, u32 *val)
+{
+ return cw1200_ahb_read(priv, addr, val, sizeof(val));
+}
+
+#endif /* CW1200_HWIO_H_INCLUDED */
--
1.7.9
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