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linux-next/drivers/net/wireless/mwifiex/sdio.h
Yogesh Ashok Powar b60186f824 mwifiex: add support for Marvell SD8897 chipset 
Some of the key differences between SD8897 and older chipsets
are as follows:

a) sdio mpa_rx and mpa_tx ports have been increased from 16 to 32
b) Same is the case with read/write bitmap that one receives from
   mpa_reg read
c) aggregation packet count doubled from 8 to 16
d) Most of key reg addresses are changed
e) There is a separate command or control port
f) Now command rx/tx_done have new interrupts

1. 'supports_sdio_new_mode' flag is added to handle (a) and (b).
2. (c) and (d) are taken care of by filling chip specific
   information in global structurei (mwifiex_sdio_sd8897).
3. For older chipsets, port 0 was cmd port and port 1->15 were
   data port. Therefore we had CTRL_PORT_MASK to differentiate
   port type. Now these changes are under 'has_control_mask' flag.

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Frank Huang <frankh@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-05-22 15:09:14 -04:00

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/*
* Marvell Wireless LAN device driver: SDIO specific definitions
*
* Copyright (C) 2011, Marvell International Ltd.
*
* This software file (the "File") is distributed by Marvell International
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
* (the "License"). You may use, redistribute and/or modify this File in
* accordance with the terms and conditions of the License, a copy of which
* is available by writing to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
*
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
* this warranty disclaimer.
*/
#ifndef _MWIFIEX_SDIO_H
#define _MWIFIEX_SDIO_H
#include <linux/mmc/sdio.h>
#include <linux/mmc/sdio_ids.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
#include "main.h"
#define SD8786_DEFAULT_FW_NAME "mrvl/sd8786_uapsta.bin"
#define SD8787_DEFAULT_FW_NAME "mrvl/sd8787_uapsta.bin"
#define SD8797_DEFAULT_FW_NAME "mrvl/sd8797_uapsta.bin"
#define SD8897_DEFAULT_FW_NAME "mrvl/sd8897_uapsta.bin"
#define BLOCK_MODE 1
#define BYTE_MODE 0
#define REG_PORT 0
#define MWIFIEX_SDIO_IO_PORT_MASK 0xfffff
#define MWIFIEX_SDIO_BYTE_MODE_MASK 0x80000000
#define SDIO_MPA_ADDR_BASE 0x1000
#define CTRL_PORT 0
#define CTRL_PORT_MASK 0x0001
#define CMD_PORT_UPLD_INT_MASK (0x1U<<6)
#define CMD_PORT_DNLD_INT_MASK (0x1U<<7)
#define HOST_TERM_CMD53 (0x1U << 2)
#define REG_PORT 0
#define MEM_PORT 0x10000
#define CMD_RD_LEN_0 0xB4
#define CMD_RD_LEN_1 0xB5
#define CARD_CONFIG_2_1_REG 0xCD
#define CMD53_NEW_MODE (0x1U << 0)
#define CMD_CONFIG_0 0xB8
#define CMD_PORT_RD_LEN_EN (0x1U << 2)
#define CMD_CONFIG_1 0xB9
#define CMD_PORT_AUTO_EN (0x1U << 0)
#define CMD_PORT_SLCT 0x8000
#define UP_LD_CMD_PORT_HOST_INT_STATUS (0x40U)
#define DN_LD_CMD_PORT_HOST_INT_STATUS (0x80U)
#define SDIO_MP_TX_AGGR_DEF_BUF_SIZE (8192) /* 8K */
/* Multi port RX aggregation buffer size */
#define SDIO_MP_RX_AGGR_DEF_BUF_SIZE (16384) /* 16K */
/* Misc. Config Register : Auto Re-enable interrupts */
#define AUTO_RE_ENABLE_INT BIT(4)
/* Host Control Registers */
/* Host Control Registers : I/O port 0 */
#define IO_PORT_0_REG 0x78
/* Host Control Registers : I/O port 1 */
#define IO_PORT_1_REG 0x79
/* Host Control Registers : I/O port 2 */
#define IO_PORT_2_REG 0x7A
/* Host Control Registers : Configuration */
#define CONFIGURATION_REG 0x00
/* Host Control Registers : Host power up */
#define HOST_POWER_UP (0x1U << 1)
/* Host Control Registers : Host interrupt mask */
#define HOST_INT_MASK_REG 0x02
/* Host Control Registers : Upload host interrupt mask */
#define UP_LD_HOST_INT_MASK (0x1U)
/* Host Control Registers : Download host interrupt mask */
#define DN_LD_HOST_INT_MASK (0x2U)
/* Disable Host interrupt mask */
#define HOST_INT_DISABLE 0xff
/* Host Control Registers : Host interrupt status */
#define HOST_INTSTATUS_REG 0x03
/* Host Control Registers : Upload host interrupt status */
#define UP_LD_HOST_INT_STATUS (0x1U)
/* Host Control Registers : Download host interrupt status */
#define DN_LD_HOST_INT_STATUS (0x2U)
/* Host Control Registers : Host interrupt RSR */
#define HOST_INT_RSR_REG 0x01
/* Host Control Registers : Host interrupt status */
#define HOST_INT_STATUS_REG 0x28
/* Card Control Registers : Card I/O ready */
#define CARD_IO_READY (0x1U << 3)
/* Card Control Registers : Download card ready */
#define DN_LD_CARD_RDY (0x1U << 0)
/* Max retry number of CMD53 write */
#define MAX_WRITE_IOMEM_RETRY 2
/* SDIO Tx aggregation in progress ? */
#define MP_TX_AGGR_IN_PROGRESS(a) (a->mpa_tx.pkt_cnt > 0)
/* SDIO Tx aggregation buffer room for next packet ? */
#define MP_TX_AGGR_BUF_HAS_ROOM(a, len) ((a->mpa_tx.buf_len+len) \
<= a->mpa_tx.buf_size)
/* Copy current packet (SDIO Tx aggregation buffer) to SDIO buffer */
#define MP_TX_AGGR_BUF_PUT(a, payload, pkt_len, port) do { \
memmove(&a->mpa_tx.buf[a->mpa_tx.buf_len], \
payload, pkt_len); \
a->mpa_tx.buf_len += pkt_len; \
if (!a->mpa_tx.pkt_cnt) \
a->mpa_tx.start_port = port; \
if (a->mpa_tx.start_port <= port) \
a->mpa_tx.ports |= (1<<(a->mpa_tx.pkt_cnt)); \
else \
a->mpa_tx.ports |= (1<<(a->mpa_tx.pkt_cnt+1+ \
(a->max_ports - \
a->mp_end_port))); \
a->mpa_tx.pkt_cnt++; \
} while (0)
/* SDIO Tx aggregation limit ? */
#define MP_TX_AGGR_PKT_LIMIT_REACHED(a) \
(a->mpa_tx.pkt_cnt == a->mpa_tx.pkt_aggr_limit)
/* Reset SDIO Tx aggregation buffer parameters */
#define MP_TX_AGGR_BUF_RESET(a) do { \
a->mpa_tx.pkt_cnt = 0; \
a->mpa_tx.buf_len = 0; \
a->mpa_tx.ports = 0; \
a->mpa_tx.start_port = 0; \
} while (0)
/* SDIO Rx aggregation limit ? */
#define MP_RX_AGGR_PKT_LIMIT_REACHED(a) \
(a->mpa_rx.pkt_cnt == a->mpa_rx.pkt_aggr_limit)
/* SDIO Rx aggregation in progress ? */
#define MP_RX_AGGR_IN_PROGRESS(a) (a->mpa_rx.pkt_cnt > 0)
/* SDIO Rx aggregation buffer room for next packet ? */
#define MP_RX_AGGR_BUF_HAS_ROOM(a, rx_len) \
((a->mpa_rx.buf_len+rx_len) <= a->mpa_rx.buf_size)
/* Reset SDIO Rx aggregation buffer parameters */
#define MP_RX_AGGR_BUF_RESET(a) do { \
a->mpa_rx.pkt_cnt = 0; \
a->mpa_rx.buf_len = 0; \
a->mpa_rx.ports = 0; \
a->mpa_rx.start_port = 0; \
} while (0)
/* data structure for SDIO MPA TX */
struct mwifiex_sdio_mpa_tx {
/* multiport tx aggregation buffer pointer */
u8 *buf;
u32 buf_len;
u32 pkt_cnt;
u32 ports;
u16 start_port;
u8 enabled;
u32 buf_size;
u32 pkt_aggr_limit;
};
struct mwifiex_sdio_mpa_rx {
u8 *buf;
u32 buf_len;
u32 pkt_cnt;
u32 ports;
u16 start_port;
struct sk_buff **skb_arr;
u32 *len_arr;
u8 enabled;
u32 buf_size;
u32 pkt_aggr_limit;
};
int mwifiex_bus_register(void);
void mwifiex_bus_unregister(void);
struct mwifiex_sdio_card_reg {
u8 start_rd_port;
u8 start_wr_port;
u8 base_0_reg;
u8 base_1_reg;
u8 poll_reg;
u8 host_int_enable;
u8 status_reg_0;
u8 status_reg_1;
u8 sdio_int_mask;
u32 data_port_mask;
u8 max_mp_regs;
u8 rd_bitmap_l;
u8 rd_bitmap_u;
u8 rd_bitmap_1l;
u8 rd_bitmap_1u;
u8 wr_bitmap_l;
u8 wr_bitmap_u;
u8 wr_bitmap_1l;
u8 wr_bitmap_1u;
u8 rd_len_p0_l;
u8 rd_len_p0_u;
u8 card_misc_cfg_reg;
};
struct sdio_mmc_card {
struct sdio_func *func;
struct mwifiex_adapter *adapter;
const char *firmware;
const struct mwifiex_sdio_card_reg *reg;
u8 max_ports;
u8 mp_agg_pkt_limit;
bool supports_sdio_new_mode;
bool has_control_mask;
u32 mp_rd_bitmap;
u32 mp_wr_bitmap;
u16 mp_end_port;
u32 mp_data_port_mask;
u8 curr_rd_port;
u8 curr_wr_port;
u8 *mp_regs;
struct mwifiex_sdio_mpa_tx mpa_tx;
struct mwifiex_sdio_mpa_rx mpa_rx;
};
struct mwifiex_sdio_device {
const char *firmware;
const struct mwifiex_sdio_card_reg *reg;
u8 max_ports;
u8 mp_agg_pkt_limit;
bool supports_sdio_new_mode;
bool has_control_mask;
};
static const struct mwifiex_sdio_card_reg mwifiex_reg_sd87xx = {
.start_rd_port = 1,
.start_wr_port = 1,
.base_0_reg = 0x0040,
.base_1_reg = 0x0041,
.poll_reg = 0x30,
.host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK,
.status_reg_0 = 0x60,
.status_reg_1 = 0x61,
.sdio_int_mask = 0x3f,
.data_port_mask = 0x0000fffe,
.max_mp_regs = 64,
.rd_bitmap_l = 0x04,
.rd_bitmap_u = 0x05,
.wr_bitmap_l = 0x06,
.wr_bitmap_u = 0x07,
.rd_len_p0_l = 0x08,
.rd_len_p0_u = 0x09,
.card_misc_cfg_reg = 0x6c,
};
static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8897 = {
.start_rd_port = 0,
.start_wr_port = 0,
.base_0_reg = 0x60,
.base_1_reg = 0x61,
.poll_reg = 0x50,
.host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK |
CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK,
.status_reg_0 = 0xc0,
.status_reg_1 = 0xc1,
.sdio_int_mask = 0xff,
.data_port_mask = 0xffffffff,
.max_mp_regs = 184,
.rd_bitmap_l = 0x04,
.rd_bitmap_u = 0x05,
.rd_bitmap_1l = 0x06,
.rd_bitmap_1u = 0x07,
.wr_bitmap_l = 0x08,
.wr_bitmap_u = 0x09,
.wr_bitmap_1l = 0x0a,
.wr_bitmap_1u = 0x0b,
.rd_len_p0_l = 0x0c,
.rd_len_p0_u = 0x0d,
.card_misc_cfg_reg = 0xcc,
};
static const struct mwifiex_sdio_device mwifiex_sdio_sd8786 = {
.firmware = SD8786_DEFAULT_FW_NAME,
.reg = &mwifiex_reg_sd87xx,
.max_ports = 16,
.mp_agg_pkt_limit = 8,
.supports_sdio_new_mode = false,
.has_control_mask = true,
};
static const struct mwifiex_sdio_device mwifiex_sdio_sd8787 = {
.firmware = SD8787_DEFAULT_FW_NAME,
.reg = &mwifiex_reg_sd87xx,
.max_ports = 16,
.mp_agg_pkt_limit = 8,
.supports_sdio_new_mode = false,
.has_control_mask = true,
};
static const struct mwifiex_sdio_device mwifiex_sdio_sd8797 = {
.firmware = SD8797_DEFAULT_FW_NAME,
.reg = &mwifiex_reg_sd87xx,
.max_ports = 16,
.mp_agg_pkt_limit = 8,
.supports_sdio_new_mode = false,
.has_control_mask = true,
};
static const struct mwifiex_sdio_device mwifiex_sdio_sd8897 = {
.firmware = SD8897_DEFAULT_FW_NAME,
.reg = &mwifiex_reg_sd8897,
.max_ports = 32,
.mp_agg_pkt_limit = 16,
.supports_sdio_new_mode = true,
.has_control_mask = false,
};
/*
* .cmdrsp_complete handler
*/
static inline int mwifiex_sdio_cmdrsp_complete(struct mwifiex_adapter *adapter,
struct sk_buff *skb)
{
dev_kfree_skb_any(skb);
return 0;
}
/*
* .event_complete handler
*/
static inline int mwifiex_sdio_event_complete(struct mwifiex_adapter *adapter,
struct sk_buff *skb)
{
dev_kfree_skb_any(skb);
return 0;
}
static inline bool
mp_rx_aggr_port_limit_reached(struct sdio_mmc_card *card)
{
u8 tmp;
if (card->curr_rd_port < card->mpa_rx.start_port) {
if (card->supports_sdio_new_mode)
tmp = card->mp_end_port >> 1;
else
tmp = card->mp_agg_pkt_limit;
if (((card->max_ports - card->mpa_rx.start_port) +
card->curr_rd_port) >= tmp)
return true;
}
if (!card->supports_sdio_new_mode)
return false;
if ((card->curr_rd_port - card->mpa_rx.start_port) >=
(card->mp_end_port >> 1))
return true;
return false;
}
static inline bool
mp_tx_aggr_port_limit_reached(struct sdio_mmc_card *card)
{
u16 tmp;
if (card->curr_wr_port < card->mpa_tx.start_port) {
if (card->supports_sdio_new_mode)
tmp = card->mp_end_port >> 1;
else
tmp = card->mp_agg_pkt_limit;
if (((card->max_ports - card->mpa_tx.start_port) +
card->curr_wr_port) >= tmp)
return true;
}
if (!card->supports_sdio_new_mode)
return false;
if ((card->curr_wr_port - card->mpa_tx.start_port) >=
(card->mp_end_port >> 1))
return true;
return false;
}
/* Prepare to copy current packet from card to SDIO Rx aggregation buffer */
static inline void mp_rx_aggr_setup(struct sdio_mmc_card *card,
struct sk_buff *skb, u8 port)
{
card->mpa_rx.buf_len += skb->len;
if (!card->mpa_rx.pkt_cnt)
card->mpa_rx.start_port = port;
if (card->supports_sdio_new_mode) {
card->mpa_rx.ports |= (1 << port);
} else {
if (card->mpa_rx.start_port <= port)
card->mpa_rx.ports |= 1 << (card->mpa_rx.pkt_cnt);
else
card->mpa_rx.ports |= 1 << (card->mpa_rx.pkt_cnt + 1);
}
card->mpa_rx.skb_arr[card->mpa_rx.pkt_cnt] = skb;
card->mpa_rx.len_arr[card->mpa_rx.pkt_cnt] = skb->len;
card->mpa_rx.pkt_cnt++;
}
#endif /* _MWIFIEX_SDIO_H */
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