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-rw-r--r--drivers/i2c/algos/i2c-algo-pca.c42
-rw-r--r--drivers/i2c/busses/i2c-pca-isa.c4
2 files changed, 23 insertions, 23 deletions
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c
index 2a16211f12e5..ebec91d71e1e 100644
--- a/drivers/i2c/algos/i2c-algo-pca.c
+++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -1,5 +1,5 @@
1/* 1/*
2 * i2c-algo-pca.c i2c driver algorithms for PCA9564 adapters 2 * i2c-algo-pca.c i2c driver algorithms for PCA9564 adapters
3 * Copyright (C) 2004 Arcom Control Systems 3 * Copyright (C) 2004 Arcom Control Systems
4 * 4 *
5 * This program is free software; you can redistribute it and/or modify 5 * This program is free software; you can redistribute it and/or modify
@@ -99,7 +99,7 @@ static void pca_stop(struct i2c_algo_pca_data *adap)
99 * 99 *
100 * returns after the address has been sent 100 * returns after the address has been sent
101 */ 101 */
102static void pca_address(struct i2c_algo_pca_data *adap, 102static void pca_address(struct i2c_algo_pca_data *adap,
103 struct i2c_msg *msg) 103 struct i2c_msg *msg)
104{ 104{
105 int sta = pca_get_con(adap); 105 int sta = pca_get_con(adap);
@@ -108,9 +108,9 @@ static void pca_address(struct i2c_algo_pca_data *adap,
108 addr = ( (0x7f & msg->addr) << 1 ); 108 addr = ( (0x7f & msg->addr) << 1 );
109 if (msg->flags & I2C_M_RD ) 109 if (msg->flags & I2C_M_RD )
110 addr |= 1; 110 addr |= 1;
111 DEB2("=== SLAVE ADDRESS %#04x+%c=%#04x\n", 111 DEB2("=== SLAVE ADDRESS %#04x+%c=%#04x\n",
112 msg->addr, msg->flags & I2C_M_RD ? 'R' : 'W', addr); 112 msg->addr, msg->flags & I2C_M_RD ? 'R' : 'W', addr);
113 113
114 pca_outw(adap, I2C_PCA_DAT, addr); 114 pca_outw(adap, I2C_PCA_DAT, addr);
115 115
116 sta &= ~(I2C_PCA_CON_STO|I2C_PCA_CON_STA|I2C_PCA_CON_SI); 116 sta &= ~(I2C_PCA_CON_STO|I2C_PCA_CON_STA|I2C_PCA_CON_SI);
@@ -124,7 +124,7 @@ static void pca_address(struct i2c_algo_pca_data *adap,
124 * 124 *
125 * Returns after the byte has been transmitted 125 * Returns after the byte has been transmitted
126 */ 126 */
127static void pca_tx_byte(struct i2c_algo_pca_data *adap, 127static void pca_tx_byte(struct i2c_algo_pca_data *adap,
128 __u8 b) 128 __u8 b)
129{ 129{
130 int sta = pca_get_con(adap); 130 int sta = pca_get_con(adap);
@@ -142,19 +142,19 @@ static void pca_tx_byte(struct i2c_algo_pca_data *adap,
142 * 142 *
143 * returns immediately. 143 * returns immediately.
144 */ 144 */
145static void pca_rx_byte(struct i2c_algo_pca_data *adap, 145static void pca_rx_byte(struct i2c_algo_pca_data *adap,
146 __u8 *b, int ack) 146 __u8 *b, int ack)
147{ 147{
148 *b = pca_inw(adap, I2C_PCA_DAT); 148 *b = pca_inw(adap, I2C_PCA_DAT);
149 DEB2("=== READ %#04x %s\n", *b, ack ? "ACK" : "NACK"); 149 DEB2("=== READ %#04x %s\n", *b, ack ? "ACK" : "NACK");
150} 150}
151 151
152/* 152/*
153 * Setup ACK or NACK for next received byte and wait for it to arrive. 153 * Setup ACK or NACK for next received byte and wait for it to arrive.
154 * 154 *
155 * Returns after next byte has arrived. 155 * Returns after next byte has arrived.
156 */ 156 */
157static void pca_rx_ack(struct i2c_algo_pca_data *adap, 157static void pca_rx_ack(struct i2c_algo_pca_data *adap,
158 int ack) 158 int ack)
159{ 159{
160 int sta = pca_get_con(adap); 160 int sta = pca_get_con(adap);
@@ -168,8 +168,8 @@ static void pca_rx_ack(struct i2c_algo_pca_data *adap,
168 pca_wait(adap); 168 pca_wait(adap);
169} 169}
170 170
171/* 171/*
172 * Reset the i2c bus / SIO 172 * Reset the i2c bus / SIO
173 */ 173 */
174static void pca_reset(struct i2c_algo_pca_data *adap) 174static void pca_reset(struct i2c_algo_pca_data *adap)
175{ 175{
@@ -203,14 +203,14 @@ static int pca_xfer(struct i2c_adapter *i2c_adap,
203 for (curmsg = 0; curmsg < num; curmsg++) { 203 for (curmsg = 0; curmsg < num; curmsg++) {
204 int addr, i; 204 int addr, i;
205 msg = &msgs[curmsg]; 205 msg = &msgs[curmsg];
206 206
207 addr = (0x7f & msg->addr) ; 207 addr = (0x7f & msg->addr) ;
208 208
209 if (msg->flags & I2C_M_RD ) 209 if (msg->flags & I2C_M_RD )
210 printk(KERN_INFO " [%02d] RD %d bytes from %#02x [%#02x, ...]\n", 210 printk(KERN_INFO " [%02d] RD %d bytes from %#02x [%#02x, ...]\n",
211 curmsg, msg->len, addr, (addr<<1) | 1); 211 curmsg, msg->len, addr, (addr<<1) | 1);
212 else { 212 else {
213 printk(KERN_INFO " [%02d] WR %d bytes to %#02x [%#02x%s", 213 printk(KERN_INFO " [%02d] WR %d bytes to %#02x [%#02x%s",
214 curmsg, msg->len, addr, addr<<1, 214 curmsg, msg->len, addr, addr<<1,
215 msg->len == 0 ? "" : ", "); 215 msg->len == 0 ? "" : ", ");
216 for(i=0; i < msg->len; i++) 216 for(i=0; i < msg->len; i++)
@@ -237,7 +237,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap,
237 case 0x10: /* A repeated start condition has been transmitted */ 237 case 0x10: /* A repeated start condition has been transmitted */
238 pca_address(adap, msg); 238 pca_address(adap, msg);
239 break; 239 break;
240 240
241 case 0x18: /* SLA+W has been transmitted; ACK has been received */ 241 case 0x18: /* SLA+W has been transmitted; ACK has been received */
242 case 0x28: /* Data byte in I2CDAT has been transmitted; ACK has been received */ 242 case 0x28: /* Data byte in I2CDAT has been transmitted; ACK has been received */
243 if (numbytes < msg->len) { 243 if (numbytes < msg->len) {
@@ -287,7 +287,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap,
287 case 0x38: /* Arbitration lost during SLA+W, SLA+R or data bytes */ 287 case 0x38: /* Arbitration lost during SLA+W, SLA+R or data bytes */
288 DEB2("Arbitration lost\n"); 288 DEB2("Arbitration lost\n");
289 goto out; 289 goto out;
290 290
291 case 0x58: /* Data byte has been received; NOT ACK has been returned */ 291 case 0x58: /* Data byte has been received; NOT ACK has been returned */
292 if ( numbytes == msg->len - 1 ) { 292 if ( numbytes == msg->len - 1 ) {
293 pca_rx_byte(adap, &msg->buf[numbytes], 0); 293 pca_rx_byte(adap, &msg->buf[numbytes], 0);
@@ -320,13 +320,13 @@ static int pca_xfer(struct i2c_adapter *i2c_adap,
320 printk(KERN_ERR DRIVER ": unhandled SIO state 0x%02x\n", state); 320 printk(KERN_ERR DRIVER ": unhandled SIO state 0x%02x\n", state);
321 break; 321 break;
322 } 322 }
323 323
324 } 324 }
325 325
326 ret = curmsg; 326 ret = curmsg;
327 out: 327 out:
328 DEB1(KERN_CRIT "}}} transfered %d/%d messages. " 328 DEB1(KERN_CRIT "}}} transfered %d/%d messages. "
329 "status is %#04x. control is %#04x\n", 329 "status is %#04x. control is %#04x\n",
330 curmsg, num, pca_status(adap), 330 curmsg, num, pca_status(adap),
331 pca_get_con(adap)); 331 pca_get_con(adap));
332 return ret; 332 return ret;
@@ -350,7 +350,7 @@ static int pca_init(struct i2c_algo_pca_data *adap)
350 pca_outw(adap, I2C_PCA_ADR, own << 1); 350 pca_outw(adap, I2C_PCA_ADR, own << 1);
351 351
352 pca_set_con(adap, I2C_PCA_CON_ENSIO | clock); 352 pca_set_con(adap, I2C_PCA_CON_ENSIO | clock);
353 udelay(500); /* 500 ยตs for oscilator to stabilise */ 353 udelay(500); /* 500 us for oscilator to stabilise */
354 354
355 return 0; 355 return 0;
356} 356}
@@ -360,8 +360,8 @@ static const struct i2c_algorithm pca_algo = {
360 .functionality = pca_func, 360 .functionality = pca_func,
361}; 361};
362 362
363/* 363/*
364 * registering functions to load algorithms at runtime 364 * registering functions to load algorithms at runtime
365 */ 365 */
366int i2c_pca_add_bus(struct i2c_adapter *adap) 366int i2c_pca_add_bus(struct i2c_adapter *adap)
367{ 367{
diff --git a/drivers/i2c/busses/i2c-pca-isa.c b/drivers/i2c/busses/i2c-pca-isa.c
index 496ee875eb4f..93ed3251893d 100644
--- a/drivers/i2c/busses/i2c-pca-isa.c
+++ b/drivers/i2c/busses/i2c-pca-isa.c
@@ -78,7 +78,7 @@ pca_isa_readbyte(struct i2c_algo_pca_data *adap, int reg)
78 int res = inb(base+reg); 78 int res = inb(base+reg);
79#ifdef DEBUG_IO 79#ifdef DEBUG_IO
80 { 80 {
81 static char *names[] = { "STA", "DAT", "ADR", "CON" }; 81 static char *names[] = { "STA", "DAT", "ADR", "CON" };
82 printk("*** read %s => %#04x\n", names[reg], res); 82 printk("*** read %s => %#04x\n", names[reg], res);
83 } 83 }
84#endif 84#endif
@@ -93,7 +93,7 @@ static int pca_isa_waitforinterrupt(struct i2c_algo_pca_data *adap)
93 ret = wait_event_interruptible(pca_wait, 93 ret = wait_event_interruptible(pca_wait,
94 pca_isa_readbyte(adap, I2C_PCA_CON) & I2C_PCA_CON_SI); 94 pca_isa_readbyte(adap, I2C_PCA_CON) & I2C_PCA_CON_SI);
95 } else { 95 } else {
96 while ((pca_isa_readbyte(adap, I2C_PCA_CON) & I2C_PCA_CON_SI) == 0) 96 while ((pca_isa_readbyte(adap, I2C_PCA_CON) & I2C_PCA_CON_SI) == 0)
97 udelay(100); 97 udelay(100);
98 } 98 }
99 return ret; 99 return ret;