diff options
Diffstat (limited to 'drivers/w1/dscore.c')
| -rw-r--r-- | drivers/w1/dscore.c | 161 |
1 files changed, 84 insertions, 77 deletions
diff --git a/drivers/w1/dscore.c b/drivers/w1/dscore.c index eee6644d33d6..15fb250451e5 100644 --- a/drivers/w1/dscore.c +++ b/drivers/w1/dscore.c @@ -1,8 +1,8 @@ /* - * dscore.c + * dscore.c * * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru> - * + * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -32,19 +32,16 @@ static struct usb_device_id ds_id_table [] = { }; MODULE_DEVICE_TABLE(usb, ds_id_table); -int ds_probe(struct usb_interface *, const struct usb_device_id *); -void ds_disconnect(struct usb_interface *); +static int ds_probe(struct usb_interface *, const struct usb_device_id *); +static void ds_disconnect(struct usb_interface *); int ds_touch_bit(struct ds_device *, u8, u8 *); int ds_read_byte(struct ds_device *, u8 *); int ds_read_bit(struct ds_device *, u8 *); int ds_write_byte(struct ds_device *, u8); int ds_write_bit(struct ds_device *, u8); -int ds_start_pulse(struct ds_device *, int); -int ds_set_speed(struct ds_device *, int); +static int ds_start_pulse(struct ds_device *, int); int ds_reset(struct ds_device *, struct ds_status *); -int ds_detect(struct ds_device *, struct ds_status *); -int ds_stop_pulse(struct ds_device *, int); struct ds_device * ds_get_device(void); void ds_put_device(struct ds_device *); @@ -79,11 +76,11 @@ void ds_put_device(struct ds_device *dev) static int ds_send_control_cmd(struct ds_device *dev, u16 value, u16 index) { int err; - - err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, dev->ep[EP_CONTROL]), + + err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, dev->ep[EP_CONTROL]), CONTROL_CMD, 0x40, value, index, NULL, 0, 1000); if (err < 0) { - printk(KERN_ERR "Failed to send command control message %x.%x: err=%d.\n", + printk(KERN_ERR "Failed to send command control message %x.%x: err=%d.\n", value, index, err); return err; } @@ -94,11 +91,11 @@ static int ds_send_control_cmd(struct ds_device *dev, u16 value, u16 index) static int ds_send_control_mode(struct ds_device *dev, u16 value, u16 index) { int err; - - err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, dev->ep[EP_CONTROL]), + + err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, dev->ep[EP_CONTROL]), MODE_CMD, 0x40, value, index, NULL, 0, 1000); if (err < 0) { - printk(KERN_ERR "Failed to send mode control message %x.%x: err=%d.\n", + printk(KERN_ERR "Failed to send mode control message %x.%x: err=%d.\n", value, index, err); return err; } @@ -109,11 +106,11 @@ static int ds_send_control_mode(struct ds_device *dev, u16 value, u16 index) static int ds_send_control(struct ds_device *dev, u16 value, u16 index) { int err; - - err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, dev->ep[EP_CONTROL]), + + err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, dev->ep[EP_CONTROL]), COMM_CMD, 0x40, value, index, NULL, 0, 1000); if (err < 0) { - printk(KERN_ERR "Failed to send control message %x.%x: err=%d.\n", + printk(KERN_ERR "Failed to send control message %x.%x: err=%d.\n", value, index, err); return err; } @@ -126,19 +123,20 @@ static inline void ds_dump_status(unsigned char *buf, unsigned char *str, int of printk("%45s: %8x\n", str, buf[off]); } -int ds_recv_status_nodump(struct ds_device *dev, struct ds_status *st, unsigned char *buf, int size) +static int ds_recv_status_nodump(struct ds_device *dev, struct ds_status *st, + unsigned char *buf, int size) { int count, err; - + memset(st, 0, sizeof(st)); - + count = 0; err = usb_bulk_msg(dev->udev, usb_rcvbulkpipe(dev->udev, dev->ep[EP_STATUS]), buf, size, &count, 100); if (err < 0) { printk(KERN_ERR "Failed to read 1-wire data from 0x%x: err=%d.\n", dev->ep[EP_STATUS], err); return err; } - + if (count >= sizeof(*st)) memcpy(st, buf, sizeof(*st)); @@ -149,13 +147,13 @@ static int ds_recv_status(struct ds_device *dev, struct ds_status *st) { unsigned char buf[64]; int count, err = 0, i; - + memcpy(st, buf, sizeof(*st)); - + count = ds_recv_status_nodump(dev, st, buf, sizeof(buf)); if (count < 0) return err; - + printk("0x%x: count=%d, status: ", dev->ep[EP_STATUS], count); for (i=0; i<count; ++i) printk("%02x ", buf[i]); @@ -199,7 +197,7 @@ static int ds_recv_status(struct ds_device *dev, struct ds_status *st) return err; } #endif - + return err; } @@ -207,9 +205,9 @@ static int ds_recv_data(struct ds_device *dev, unsigned char *buf, int size) { int count, err; struct ds_status st; - + count = 0; - err = usb_bulk_msg(dev->udev, usb_rcvbulkpipe(dev->udev, dev->ep[EP_DATA_IN]), + err = usb_bulk_msg(dev->udev, usb_rcvbulkpipe(dev->udev, dev->ep[EP_DATA_IN]), buf, size, &count, 1000); if (err < 0) { printk(KERN_INFO "Clearing ep0x%x.\n", dev->ep[EP_DATA_IN]); @@ -234,7 +232,7 @@ static int ds_recv_data(struct ds_device *dev, unsigned char *buf, int size) static int ds_send_data(struct ds_device *dev, unsigned char *buf, int len) { int count, err; - + count = 0; err = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, dev->ep[EP_DATA_OUT]), buf, len, &count, 1000); if (err < 0) { @@ -245,12 +243,14 @@ static int ds_send_data(struct ds_device *dev, unsigned char *buf, int len) return err; } +#if 0 + int ds_stop_pulse(struct ds_device *dev, int limit) { struct ds_status st; int count = 0, err = 0; u8 buf[0x20]; - + do { err = ds_send_control(dev, CTL_HALT_EXE_IDLE, 0); if (err) @@ -275,7 +275,7 @@ int ds_stop_pulse(struct ds_device *dev, int limit) int ds_detect(struct ds_device *dev, struct ds_status *st) { int err; - + err = ds_send_control_cmd(dev, CTL_RESET_DEVICE, 0); if (err) return err; @@ -283,11 +283,11 @@ int ds_detect(struct ds_device *dev, struct ds_status *st) err = ds_send_control(dev, COMM_SET_DURATION | COMM_IM, 0); if (err) return err; - + err = ds_send_control(dev, COMM_SET_DURATION | COMM_IM | COMM_TYPE, 0x40); if (err) return err; - + err = ds_send_control_mode(dev, MOD_PULSE_EN, PULSE_PROG); if (err) return err; @@ -297,7 +297,9 @@ int ds_detect(struct ds_device *dev, struct ds_status *st) return err; } -int ds_wait_status(struct ds_device *dev, struct ds_status *st) +#endif /* 0 */ + +static int ds_wait_status(struct ds_device *dev, struct ds_status *st) { u8 buf[0x20]; int err, count = 0; @@ -305,7 +307,7 @@ int ds_wait_status(struct ds_device *dev, struct ds_status *st) do { err = ds_recv_status_nodump(dev, st, buf, sizeof(buf)); #if 0 - if (err >= 0) { + if (err >= 0) { int i; printk("0x%x: count=%d, status: ", dev->ep[EP_STATUS], err); for (i=0; i<err; ++i) @@ -319,10 +321,8 @@ int ds_wait_status(struct ds_device *dev, struct ds_status *st) if (((err > 16) && (buf[0x10] & 0x01)) || count >= 100 || err < 0) { ds_recv_status(dev, st); return -1; - } - else { + } else return 0; - } } int ds_reset(struct ds_device *dev, struct ds_status *st) @@ -345,6 +345,7 @@ int ds_reset(struct ds_device *dev, struct ds_status *st) return 0; } +#if 0 int ds_set_speed(struct ds_device *dev, int speed) { int err; @@ -356,20 +357,21 @@ int ds_set_speed(struct ds_device *dev, int speed) speed = SPEED_FLEXIBLE; speed &= 0xff; - + err = ds_send_control_mode(dev, MOD_1WIRE_SPEED, speed); if (err) return err; return err; } +#endif /* 0 */ -int ds_start_pulse(struct ds_device *dev, int delay) +static int ds_start_pulse(struct ds_device *dev, int delay) { int err; u8 del = 1 + (u8)(delay >> 4); struct ds_status st; - + #if 0 err = ds_stop_pulse(dev, 10); if (err) @@ -390,7 +392,7 @@ int ds_start_pulse(struct ds_device *dev, int delay) mdelay(delay); ds_wait_status(dev, &st); - + return err; } @@ -400,7 +402,7 @@ int ds_touch_bit(struct ds_device *dev, u8 bit, u8 *tbit) struct ds_status st; u16 value = (COMM_BIT_IO | COMM_IM) | ((bit) ? COMM_D : 0); u16 cmd; - + err = ds_send_control(dev, value, 0); if (err) return err; @@ -430,7 +432,7 @@ int ds_write_bit(struct ds_device *dev, u8 bit) { int err; struct ds_status st; - + err = ds_send_control(dev, COMM_BIT_IO | COMM_IM | (bit) ? COMM_D : 0, 0); if (err) return err; @@ -445,7 +447,7 @@ int ds_write_byte(struct ds_device *dev, u8 byte) int err; struct ds_status st; u8 rbyte; - + err = ds_send_control(dev, COMM_BYTE_IO | COMM_IM | COMM_SPU, byte); if (err) return err; @@ -453,11 +455,11 @@ int ds_write_byte(struct ds_device *dev, u8 byte) err = ds_wait_status(dev, &st); if (err) return err; - + err = ds_recv_data(dev, &rbyte, sizeof(rbyte)); if (err < 0) return err; - + ds_start_pulse(dev, PULLUP_PULSE_DURATION); return !(byte == rbyte); @@ -470,11 +472,11 @@ int ds_read_bit(struct ds_device *dev, u8 *bit) err = ds_send_control_mode(dev, MOD_PULSE_EN, PULSE_SPUE); if (err) return err; - + err = ds_send_control(dev, COMM_BIT_IO | COMM_IM | COMM_SPU | COMM_D, 0); if (err) return err; - + err = ds_recv_data(dev, bit, sizeof(*bit)); if (err < 0) return err; @@ -492,7 +494,7 @@ int ds_read_byte(struct ds_device *dev, u8 *byte) return err; ds_wait_status(dev, &st); - + err = ds_recv_data(dev, byte, sizeof(*byte)); if (err < 0) return err; @@ -509,17 +511,17 @@ int ds_read_block(struct ds_device *dev, u8 *buf, int len) return -E2BIG; memset(buf, 0xFF, len); - + err = ds_send_data(dev, buf, len); if (err < 0) return err; - + err = ds_send_control(dev, COMM_BLOCK_IO | COMM_IM | COMM_SPU, len); if (err) return err; ds_wait_status(dev, &st); - + memset(buf, 0x00, len); err = ds_recv_data(dev, buf, len); @@ -530,11 +532,11 @@ int ds_write_block(struct ds_device *dev, u8 *buf, int len) { int err; struct ds_status st; - + err = ds_send_data(dev, buf, len); if (err < 0) return err; - + ds_wait_status(dev, &st); err = ds_send_control(dev, COMM_BLOCK_IO | COMM_IM | COMM_SPU, len); @@ -548,10 +550,12 @@ int ds_write_block(struct ds_device *dev, u8 *buf, int len) return err; ds_start_pulse(dev, PULLUP_PULSE_DURATION); - + return !(err == len); } +#if 0 + int ds_search(struct ds_device *dev, u64 init, u64 *buf, u8 id_number, int conditional_search) { int err; @@ -559,11 +563,11 @@ int ds_search(struct ds_device *dev, u64 init, u64 *buf, u8 id_number, int condi struct ds_status st; memset(buf, 0, sizeof(buf)); - + err = ds_send_data(ds_dev, (unsigned char *)&init, 8); if (err) return err; - + ds_wait_status(ds_dev, &st); value = COMM_SEARCH_ACCESS | COMM_IM | COMM_SM | COMM_F | COMM_RTS; @@ -589,7 +593,7 @@ int ds_match_access(struct ds_device *dev, u64 init) err = ds_send_data(dev, (unsigned char *)&init, sizeof(init)); if (err) return err; - + ds_wait_status(dev, &st); err = ds_send_control(dev, COMM_MATCH_ACCESS | COMM_IM | COMM_RST, 0x0055); @@ -609,11 +613,11 @@ int ds_set_path(struct ds_device *dev, u64 init) memcpy(buf, &init, 8); buf[8] = BRANCH_MAIN; - + err = ds_send_data(dev, buf, sizeof(buf)); if (err) return err; - + ds_wait_status(dev, &st); err = ds_send_control(dev, COMM_SET_PATH | COMM_IM | COMM_RST, 0); @@ -625,7 +629,10 @@ int ds_set_path(struct ds_device *dev, u64 init) return 0; } -int ds_probe(struct usb_interface *intf, const struct usb_device_id *udev_id) +#endif /* 0 */ + +static int ds_probe(struct usb_interface *intf, + const struct usb_device_id *udev_id) { struct usb_device *udev = interface_to_usbdev(intf); struct usb_endpoint_descriptor *endpoint; @@ -653,7 +660,7 @@ int ds_probe(struct usb_interface *intf, const struct usb_device_id *udev_id) printk(KERN_ERR "Failed to reset configuration: err=%d.\n", err); return err; } - + iface_desc = &intf->altsetting[0]; if (iface_desc->desc.bNumEndpoints != NUM_EP-1) { printk(KERN_INFO "Num endpoints=%d. It is not DS9490R.\n", iface_desc->desc.bNumEndpoints); @@ -662,37 +669,37 @@ int ds_probe(struct usb_interface *intf, const struct usb_device_id *udev_id) atomic_set(&ds_dev->refcnt, 0); memset(ds_dev->ep, 0, sizeof(ds_dev->ep)); - + /* - * This loop doesn'd show control 0 endpoint, + * This loop doesn'd show control 0 endpoint, * so we will fill only 1-3 endpoints entry. */ for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { endpoint = &iface_desc->endpoint[i].desc; ds_dev->ep[i+1] = endpoint->bEndpointAddress; - + printk("%d: addr=%x, size=%d, dir=%s, type=%x\n", i, endpoint->bEndpointAddress, le16_to_cpu(endpoint->wMaxPacketSize), (endpoint->bEndpointAddress & USB_DIR_IN)?"IN":"OUT", endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK); } - + #if 0 { int err, i; u64 buf[3]; u64 init=0xb30000002078ee81ull; struct ds_status st; - + ds_reset(ds_dev, &st); err = ds_search(ds_dev, init, buf, 3, 0); if (err < 0) return err; for (i=0; i<err; ++i) printk("%d: %llx\n", i, buf[i]); - - printk("Resetting...\n"); + + printk("Resetting...\n"); ds_reset(ds_dev, &st); printk("Setting path for %llx.\n", init); err = ds_set_path(ds_dev, init); @@ -707,12 +714,12 @@ int ds_probe(struct usb_interface *intf, const struct usb_device_id *udev_id) err = ds_search(ds_dev, init, buf, 3, 0); printk("ds_search() returned %d\n", err); - + if (err < 0) return err; for (i=0; i<err; ++i) printk("%d: %llx\n", i, buf[i]); - + return 0; } #endif @@ -720,10 +727,10 @@ int ds_probe(struct usb_interface *intf, const struct usb_device_id *udev_id) return 0; } -void ds_disconnect(struct usb_interface *intf) +static void ds_disconnect(struct usb_interface *intf) { struct ds_device *dev; - + dev = usb_get_intfdata(intf); usb_set_intfdata(intf, NULL); @@ -740,7 +747,7 @@ void ds_disconnect(struct usb_interface *intf) ds_dev = NULL; } -int ds_init(void) +static int ds_init(void) { int err; @@ -753,7 +760,7 @@ int ds_init(void) return 0; } -void ds_fini(void) +static void ds_fini(void) { usb_deregister(&ds_driver); } @@ -776,8 +783,8 @@ EXPORT_SYMBOL(ds_get_device); EXPORT_SYMBOL(ds_put_device); /* - * This functions can be used for EEPROM programming, - * when driver will be included into mainline this will + * This functions can be used for EEPROM programming, + * when driver will be included into mainline this will * require uncommenting. */ #if 0 |