drivers/net/wireless/cw1200/hwio.h - maze/linux - Git at Google

 /*
  * Low-level API for mac80211 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@stericsson.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.
  */

 #ifndef CW1200_HWIO_H_INCLUDED
 #define CW1200_HWIO_H_INCLUDED

 /* extern */ struct cw1200_common;

 #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 image_size;
 	/* 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 trace_pc;
 	/* 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 debug_data[DOWNLOAD_CTRL_DATA_DWORDS];
 };

 #define	DOWNLOAD_IMAGE_SIZE_REG		\
 	(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, image_size))
 #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, trace_pc))
 #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, debug_data))
 #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 CW1200_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_PRFETCH_BIT	(BIT(11))
 #define ST90TDS_CONFIG_CPU_CLK_DIS_BIT	(BIT(12))
 /* APB bus */
 #define ST90TDS_CONFIG_PRFETCH_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_ENABLE		(BIT(16))
 #define ST90TDS_CONF_RDY_ENABLE		(BIT(17))
 #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)
 {
 	__le32 tmp;
 	int i;
 	i = cw1200_reg_read(priv, addr, &tmp, sizeof(tmp));
 	*val = le32_to_cpu(tmp) & 0xfffff;
 	return i;
 }

 static inline int cw1200_reg_write_16(struct cw1200_common *priv,
 				      u16 addr, u16 val)
 {
 	__le32 tmp = cpu_to_le32((u32)val);
 	return cw1200_reg_write(priv, addr, &tmp, sizeof(tmp));
 }

 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));
 	*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(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_PRFETCH_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_PRFETCH_BIT,
 				    ST90TDS_AHB_DPORT_REG_ID);
 }

 static inline int cw1200_apb_read_32(struct cw1200_common *priv,
 				     u32 addr, u32 *val)
 {
 	__le32 tmp;
 	int i = cw1200_apb_read(priv, addr, &tmp, sizeof(tmp));
 	*val = le32_to_cpu(tmp);
 	return i;
 }

 static inline int cw1200_apb_write_32(struct cw1200_common *priv,
 				      u32 addr, u32 val)
 {
 	__le32 tmp = cpu_to_le32(val);
 	return cw1200_apb_write(priv, addr, &tmp, sizeof(val));
 }
 static inline int cw1200_ahb_read_32(struct cw1200_common *priv,
 				     u32 addr, u32 *val)
 {
 	__le32 tmp;
 	int i = cw1200_ahb_read(priv, addr, &tmp, sizeof(tmp));
 	*val = le32_to_cpu(tmp);
 	return i;
 }

 #endif /* CW1200_HWIO_H_INCLUDED */
	/*
	* Low-level API for mac80211 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@stericsson.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.
	*/

	#ifndef CW1200_HWIO_H_INCLUDED
	#define CW1200_HWIO_H_INCLUDED

	/* extern */ struct cw1200_common;

	#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 image_size;
	/* 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 trace_pc;
	/* 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 debug_data[DOWNLOAD_CTRL_DATA_DWORDS];
	};

	#define DOWNLOAD_IMAGE_SIZE_REG \
	(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, image_size))
	#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, trace_pc))
	#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, debug_data))
	#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 CW1200_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_PRFETCH_BIT (BIT(11))
	#define ST90TDS_CONFIG_CPU_CLK_DIS_BIT (BIT(12))
	/* APB bus */
	#define ST90TDS_CONFIG_PRFETCH_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_ENABLE (BIT(16))
	#define ST90TDS_CONF_RDY_ENABLE (BIT(17))
	#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)
	{
	__le32 tmp;
	int i;
	i = cw1200_reg_read(priv, addr, &tmp, sizeof(tmp));
	*val = le32_to_cpu(tmp) & 0xfffff;
	return i;
	}

	static inline int cw1200_reg_write_16(struct cw1200_common *priv,
	u16 addr, u16 val)
	{
	__le32 tmp = cpu_to_le32((u32)val);
	return cw1200_reg_write(priv, addr, &tmp, sizeof(tmp));
	}

	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));
	*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(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_PRFETCH_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_PRFETCH_BIT,
	ST90TDS_AHB_DPORT_REG_ID);
	}

	static inline int cw1200_apb_read_32(struct cw1200_common *priv,
	u32 addr, u32 *val)
	{
	__le32 tmp;
	int i = cw1200_apb_read(priv, addr, &tmp, sizeof(tmp));
	*val = le32_to_cpu(tmp);
	return i;
	}

	static inline int cw1200_apb_write_32(struct cw1200_common *priv,
	u32 addr, u32 val)
	{
	__le32 tmp = cpu_to_le32(val);
	return cw1200_apb_write(priv, addr, &tmp, sizeof(val));
	}
	static inline int cw1200_ahb_read_32(struct cw1200_common *priv,
	u32 addr, u32 *val)
	{
	__le32 tmp;
	int i = cw1200_ahb_read(priv, addr, &tmp, sizeof(tmp));
	*val = le32_to_cpu(tmp);
	return i;
	}

	#endif /* CW1200_HWIO_H_INCLUDED */