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6#ifndef _MFD_IPAQ_MICRO_H_
7#define _MFD_IPAQ_MICRO_H_
8
9#include <linux/spinlock.h>
10#include <linux/completion.h>
11#include <linux/list.h>
12
13#define TX_BUF_SIZE 32
14#define RX_BUF_SIZE 16
15#define CHAR_SOF 0x02
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21#define MSG_VERSION 0x0
22#define MSG_KEYBOARD 0x2
23#define MSG_TOUCHSCREEN 0x3
24#define MSG_EEPROM_READ 0x4
25#define MSG_EEPROM_WRITE 0x5
26#define MSG_THERMAL_SENSOR 0x6
27#define MSG_NOTIFY_LED 0x8
28#define MSG_BATTERY 0x9
29#define MSG_SPI_READ 0xb
30#define MSG_SPI_WRITE 0xc
31#define MSG_BACKLIGHT 0xd
32#define MSG_CODEC_CTRL 0xe
33#define MSG_DISPLAY_CTRL 0xf
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35
36enum rx_state {
37 STATE_SOF = 0,
38 STATE_ID,
39 STATE_DATA,
40 STATE_CHKSUM
41};
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49struct ipaq_micro_txdev {
50 u8 len;
51 u8 index;
52 u8 buf[TX_BUF_SIZE];
53};
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64struct ipaq_micro_rxdev {
65 enum rx_state state;
66 unsigned char chksum;
67 u8 id;
68 unsigned int len;
69 unsigned int index;
70 u8 buf[RX_BUF_SIZE];
71};
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83struct ipaq_micro_msg {
84 u8 id;
85 u8 tx_len;
86 u8 tx_data[TX_BUF_SIZE];
87 u8 rx_len;
88 u8 rx_data[RX_BUF_SIZE];
89 struct completion ack;
90 struct list_head node;
91};
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109struct ipaq_micro {
110 struct device *dev;
111 void __iomem *base;
112 void __iomem *sdlc;
113 char version[5];
114 struct ipaq_micro_txdev tx;
115 struct ipaq_micro_rxdev rx;
116 spinlock_t lock;
117 struct ipaq_micro_msg *msg;
118 struct list_head queue;
119 void (*key) (void *data, int len, unsigned char *rxdata);
120 void *key_data;
121 void (*ts) (void *data, int len, unsigned char *rxdata);
122 void *ts_data;
123};
124
125extern int
126ipaq_micro_tx_msg(struct ipaq_micro *micro, struct ipaq_micro_msg *msg);
127
128static inline int
129ipaq_micro_tx_msg_sync(struct ipaq_micro *micro,
130 struct ipaq_micro_msg *msg)
131{
132 int ret;
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134 init_completion(&msg->ack);
135 ret = ipaq_micro_tx_msg(micro, msg);
136 wait_for_completion(&msg->ack);
137
138 return ret;
139}
140
141static inline int
142ipaq_micro_tx_msg_async(struct ipaq_micro *micro,
143 struct ipaq_micro_msg *msg)
144{
145 init_completion(&msg->ack);
146 return ipaq_micro_tx_msg(micro, msg);
147}
148
149#endif
150