forked from Minki/linux
Staging: Remove staging/poch
Remove staging/poch. Reasons for removal are -- The driver has serious cache issues, that I couldn't fix. The card vendor is working on a better replacement for the driver. The driver has been delayed a lot and development has come to a stand still. Signed-off-by: Vijay Kumar B. <vijaykumar@bravegnu.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Vijay Kumar
Greg Kroah-Hartman
parent
24d2d8be91
commit
6764cbd72a
@ -57,8 +57,6 @@ source "drivers/staging/wlan-ng/Kconfig"
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source "drivers/staging/echo/Kconfig"
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source "drivers/staging/poch/Kconfig"
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source "drivers/staging/otus/Kconfig"
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source "drivers/staging/rt2860/Kconfig"
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@ -11,7 +11,6 @@ obj-$(CONFIG_USB_IP_COMMON) += usbip/
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obj-$(CONFIG_W35UND) += winbond/
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obj-$(CONFIG_PRISM2_USB) += wlan-ng/
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obj-$(CONFIG_ECHO) += echo/
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obj-$(CONFIG_POCH) += poch/
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obj-$(CONFIG_OTUS) += otus/
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obj-$(CONFIG_RT2860) += rt2860/
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obj-$(CONFIG_RT2870) += rt2870/
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@ -1,6 +0,0 @@
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config POCH
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tristate "Redrapids Pocket Change CardBus support"
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depends on PCI && UIO
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default N
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---help---
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Enable support for Redrapids Pocket Change CardBus devices.
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@ -1 +0,0 @@
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obj-$(CONFIG_POCH) += poch.o
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@ -1,136 +0,0 @@
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TODO:
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- Rx block size is limited to < 2048, hardware bug?
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- Group size is limited to < page size, kernel alloc/mmap API issues
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- test whether Tx is transmitting data from provided buffers
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- handle device unplug case
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- handle temperature above threshold
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- use bus address instead of physical address for DMA
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- support for snapshot mode
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- audit userspace interfaces
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- get reserved major/minor if needed
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Sample Code:
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/mman.h>
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#include <sys/ioctl.h>
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#include <poll.h>
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#include <stdio.h>
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#include <error.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdint.h>
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#include <sysfs/libsysfs.h>
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#include <poch.h>
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struct pconsume {
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uint32_t * offsets;
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uint32_t nfetch;
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uint32_t nflush;
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};
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uint32_t offsets[10];
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void process_group(unsigned char *buf, uint32_t size)
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{
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uint16_t *buf16 = (uint16_t *)buf;
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printf("RX: %p %u %04x %04x %04x %04x %04x %04x\n", buf, size,
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buf16[0], buf16[1], buf16[2], buf16[3], buf16[4], buf16[5]);
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}
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int main()
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{
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struct sysfs_attribute *attr;
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char *path;
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int ret;
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unsigned long mmap_size;
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int fd;
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unsigned char *cbuf;
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uint32_t nflush;
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struct pollfd poll_fds;
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int count = 0;
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int i;
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path = "/sys/class/pocketchange/poch0/ch0/block_size";
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attr = sysfs_open_attribute(path);
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ret = sysfs_write_attribute(attr, "256", strlen("256"));
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if (ret == -1)
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error(1, errno, "error writing attribute %s", path);
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sysfs_close_attribute(attr);
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path = "/sys/class/pocketchange/poch0/ch0/group_size";
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attr = sysfs_open_attribute(path);
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ret = sysfs_write_attribute(attr, "4096", strlen("4096"));
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if (ret == -1)
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error(1, errno, "error writing attribute %s", path);
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sysfs_close_attribute(attr);
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path = "/sys/class/pocketchange/poch0/ch0/group_count";
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attr = sysfs_open_attribute(path);
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ret = sysfs_write_attribute(attr, "64", strlen("64"));
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if (ret == -1)
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error(1, errno, "error writing attribute %s", path);
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sysfs_close_attribute(attr);
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fd = open("/dev/ch0", O_RDWR);
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if (fd == -1)
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error(1, errno, "error opening device node");
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path = "/sys/class/pocketchange/poch0/ch0/mmap_size";
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attr = sysfs_open_attribute(path);
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ret = sysfs_read_attribute(attr);
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if (ret == -1)
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error(1, errno, "error reading attribute %s", path);
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printf("%s", attr->value);
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sscanf(attr->value, "%lu", &mmap_size);
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sysfs_close_attribute(attr);
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cbuf = mmap(NULL, mmap_size, PROT_READ | PROT_WRITE,
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MAP_PRIVATE, fd, 0);
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if (cbuf == MAP_FAILED)
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error(1, errno, "error mapping DMA buffers");
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ret = ioctl(fd, POCH_IOC_TRANSFER_START, 0);
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if (ret == -1)
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error(1, errno, "error starting transfer");
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nflush = 0;
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while (1) {
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struct pconsume consume;
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consume.offsets = offsets;
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consume.nfetch = 10;
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consume.nflush = nflush;
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ret = ioctl(fd, POCH_IOC_CONSUME, &consume);
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if (ret == -1)
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error(1, errno, "error consuming groups");
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nflush = consume.nfetch;
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for (i = 0; i < nflush; i++) {
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process_group(cbuf + consume.offsets[i], 4096);
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count++;
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if (count == 1000)
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break;
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}
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if (count == 1000)
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break;
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}
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ret = ioctl(fd, POCH_IOC_TRANSFER_STOP, 0);
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if (ret == -1)
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error(1, errno, "error starting transfer");
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return 0;
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}
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Please send patches to Greg Kroah-Hartman <greg@kroah.com> and
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Vijay Kumar <vijaykumar@bravegnu.org> and Jaya Kumar <jayakumar.lkml@gmail.com>
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File diff suppressed because it is too large
Load Diff
@ -1,35 +0,0 @@
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/*
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* User-space DMA and UIO based Redrapids Pocket Change CardBus driver
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*
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* Copyright 2008 Vijay Kumar <vijaykumar@bravegnu.org>
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*
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* Part of userspace API. Should be moved to a header file in
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* include/linux for final version.
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*
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*/
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#include <linux/types.h>
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struct poch_counters {
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__u32 fifo_empty;
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__u32 fifo_overflow;
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__u32 pll_unlock;
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};
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struct poch_consume {
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__u32 __user *offsets;
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__u32 nfetch;
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__u32 nflush;
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};
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#define POCH_IOC_NUM '9'
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#define POCH_IOC_TRANSFER_START _IO(POCH_IOC_NUM, 0)
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#define POCH_IOC_TRANSFER_STOP _IO(POCH_IOC_NUM, 1)
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#define POCH_IOC_GET_COUNTERS _IOR(POCH_IOC_NUM, 2, \
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struct poch_counters)
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#define POCH_IOC_SYNC_GROUP_FOR_USER _IO(POCH_IOC_NUM, 3)
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#define POCH_IOC_SYNC_GROUP_FOR_DEVICE _IO(POCH_IOC_NUM, 4)
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#define POCH_IOC_CONSUME _IOWR(POCH_IOC_NUM, 5, \
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struct poch_consume)
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