mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 08:19:28 +00:00
![Solomon Peachy](/assets/img/avatar_default.png)
Most of these relate to endianness problems, and are purely cosmetic. But a couple of them were legit -- listen interval parsing and some of the rate selection code would malfunction on BE systems. There's still one cosmetic warning remaining, in the (admittedly) ugly code in cw1200_spi.c. It's there because the hardware needs 16-bit SPI transfers, but many SPI controllers only operate 8 bits at a time. If there's a cleaner way of handling this, I'm all ears. Signed-off-by: Solomon Peachy <pizza@shaftnet.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
247 lines
7.8 KiB
C
247 lines
7.8 KiB
C
/*
|
|
* 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 */
|