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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-11 21:59:44 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-11 21:59:44 (GMT)
commit8966961b31c251b854169e9886394c2a20f2cea7 (patch)
tree248a625b23335acbd5ca4b55eb136fe0dc8ba0aa /drivers/staging/iio/adc/max1363_ring.c
parent6a5971d8fea1f4a8c33dfe0cec6a1c490f0c9cde (diff)
parent7bcb57cde66c19df378f3468ea342166a8a4504d (diff)
downloadlinux-fsl-qoriq-8966961b31c251b854169e9886394c2a20f2cea7.tar.xz
Merge tag 'staging-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver tree merge from Greg Kroah-Hartman: "Here's the big staging tree merge for 3.8-rc1 There's a lot of patches in here, the majority being the comedi rework/cleanup that has been ongoing and is causing a huge reduction in overall code size, which is amazing to watch. We also removed some older drivers (telephony and rts_pstor), and added a new one (fwserial which also came in through the tty tree due to tty api changes, take that one if you get merge conflicts.) The iio and ipack drivers are moving out of the staging area into their own part of the kernel as they have been cleaned up sufficiently and are working well. Overall, again a reduction of code: 768 files changed, 31887 insertions(+), 82166 deletions(-) All of this has been in the linux-next tree for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'staging-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1298 commits) iio: imu: adis16480: remove duplicated include from adis16480.c iio: gyro: adis16136: remove duplicated include from adis16136.c iio:imu: adis16480: show_firmware() buffer too small iio:gyro: adis16136: divide by zero in write_frequency() iio: adc: Add Texas Instruments ADC081C021/027 support iio:ad7793: Add support for the ad7796 and ad7797 iio:ad7793: Add support for the ad7798 and ad7799 staging:iio: Move ad7793 driver out of staging staging:iio:ad7793: Implement stricter id checking staging:iio:ad7793: Move register definitions from header to source staging:iio:ad7793: Rework regulator handling staging:iio:ad7793: Rework platform data staging:iio:ad7793: Use kstrtol instead of strict_strtol staging:iio:ad7793: Use usleep_range instead of msleep staging:iio:ad7793: Fix temperature scale staging:iio:ad7793: Fix VDD monitor scale staging: gdm72xx: unlock on error in init_usb() staging: panel: pass correct lengths to keypad_send_key() staging: comedi: addi_apci_2032: fix interrupt support staging: comedi: addi_apci_2032: move i_APCI2032_ConfigDigitalOutput() ...
Diffstat (limited to 'drivers/staging/iio/adc/max1363_ring.c')
-rw-r--r--drivers/staging/iio/adc/max1363_ring.c139
1 files changed, 0 insertions, 139 deletions
diff --git a/drivers/staging/iio/adc/max1363_ring.c b/drivers/staging/iio/adc/max1363_ring.c
deleted file mode 100644
index 5f74f3b..0000000
--- a/drivers/staging/iio/adc/max1363_ring.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Copyright (C) 2008 Jonathan Cameron
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * max1363_ring.c
- */
-
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/kernel.h>
-#include <linux/i2c.h>
-#include <linux/bitops.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/buffer.h>
-#include "../ring_sw.h"
-#include <linux/iio/trigger_consumer.h>
-
-#include "max1363.h"
-
-int max1363_update_scan_mode(struct iio_dev *indio_dev,
- const unsigned long *scan_mask)
-{
- struct max1363_state *st = iio_priv(indio_dev);
-
- /*
- * Need to figure out the current mode based upon the requested
- * scan mask in iio_dev
- */
- st->current_mode = max1363_match_mode(scan_mask, st->chip_info);
- if (!st->current_mode)
- return -EINVAL;
- max1363_set_scan_mode(st);
- return 0;
-}
-
-static irqreturn_t max1363_trigger_handler(int irq, void *p)
-{
- struct iio_poll_func *pf = p;
- struct iio_dev *indio_dev = pf->indio_dev;
- struct max1363_state *st = iio_priv(indio_dev);
- s64 time_ns;
- __u8 *rxbuf;
- int b_sent;
- size_t d_size;
- unsigned long numvals = bitmap_weight(st->current_mode->modemask,
- MAX1363_MAX_CHANNELS);
-
- /* Ensure the timestamp is 8 byte aligned */
- if (st->chip_info->bits != 8)
- d_size = numvals*2;
- else
- d_size = numvals;
- if (indio_dev->scan_timestamp) {
- d_size += sizeof(s64);
- if (d_size % sizeof(s64))
- d_size += sizeof(s64) - (d_size % sizeof(s64));
- }
- /* Monitor mode prevents reading. Whilst not currently implemented
- * might as well have this test in here in the meantime as it does
- * no harm.
- */
- if (numvals == 0)
- goto done;
-
- rxbuf = kmalloc(d_size, GFP_KERNEL);
- if (rxbuf == NULL)
- goto done;
- if (st->chip_info->bits != 8)
- b_sent = i2c_master_recv(st->client, rxbuf, numvals*2);
- else
- b_sent = i2c_master_recv(st->client, rxbuf, numvals);
- if (b_sent < 0)
- goto done_free;
-
- time_ns = iio_get_time_ns();
-
- if (indio_dev->scan_timestamp)
- memcpy(rxbuf + d_size - sizeof(s64), &time_ns, sizeof(time_ns));
- iio_push_to_buffer(indio_dev->buffer, rxbuf);
-
-done_free:
- kfree(rxbuf);
-done:
- iio_trigger_notify_done(indio_dev->trig);
-
- return IRQ_HANDLED;
-}
-
-static const struct iio_buffer_setup_ops max1363_ring_setup_ops = {
- .postenable = &iio_triggered_buffer_postenable,
- .preenable = &iio_sw_buffer_preenable,
- .predisable = &iio_triggered_buffer_predisable,
-};
-
-int max1363_register_ring_funcs_and_init(struct iio_dev *indio_dev)
-{
- struct max1363_state *st = iio_priv(indio_dev);
- int ret = 0;
-
- indio_dev->buffer = iio_sw_rb_allocate(indio_dev);
- if (!indio_dev->buffer) {
- ret = -ENOMEM;
- goto error_ret;
- }
- indio_dev->pollfunc = iio_alloc_pollfunc(NULL,
- &max1363_trigger_handler,
- IRQF_ONESHOT,
- indio_dev,
- "%s_consumer%d",
- st->client->name,
- indio_dev->id);
- if (indio_dev->pollfunc == NULL) {
- ret = -ENOMEM;
- goto error_deallocate_sw_rb;
- }
- /* Ring buffer functions - here trigger setup related */
- indio_dev->setup_ops = &max1363_ring_setup_ops;
-
- /* Flag that polled ring buffering is possible */
- indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
-
- return 0;
-
-error_deallocate_sw_rb:
- iio_sw_rb_free(indio_dev->buffer);
-error_ret:
- return ret;
-}
-
-void max1363_ring_cleanup(struct iio_dev *indio_dev)
-{
- /* ensure that the trigger has been detached */
- iio_dealloc_pollfunc(indio_dev->pollfunc);
- iio_sw_rb_free(indio_dev->buffer);
-}