2019-06-04 08:11:33 +00:00
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// SPDX-License-Identifier: GPL-2.0-only
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2007-03-16 04:58:52 +00:00
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/*
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2008-01-31 05:56:46 +00:00
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* linux/drivers/input/keyboard/pxa27x_keypad.c
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2007-03-16 04:58:52 +00:00
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*
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* Driver for the pxa27x matrix keyboard controller.
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*
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* Created: Feb 22, 2007
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* Author: Rodolfo Giometti <giometti@linux.it>
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*
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* Based on a previous implementations by Kevin O'Connor
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* <kevin_at_koconnor.net> and Alex Osborne <bobofdoom@gmail.com> and
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2009-09-14 07:25:28 +00:00
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* on some suggestions by Nicolas Pitre <nico@fluxnic.net>.
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2007-03-16 04:58:52 +00:00
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/input.h>
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2015-02-03 23:12:38 +00:00
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#include <linux/io.h>
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2007-03-16 04:58:52 +00:00
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#include <linux/device.h>
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#include <linux/platform_device.h>
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2007-08-20 09:19:39 +00:00
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#include <linux/clk.h>
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#include <linux/err.h>
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2009-07-23 04:51:40 +00:00
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#include <linux/input/matrix_keypad.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 08:04:11 +00:00
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#include <linux/slab.h>
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2013-10-06 07:55:51 +00:00
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#include <linux/of.h>
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2007-03-16 04:58:52 +00:00
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2012-08-24 13:16:48 +00:00
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#include <linux/platform_data/keypad-pxa27x.h>
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2008-01-31 05:59:15 +00:00
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/*
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* Keypad Controller registers
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*/
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#define KPC 0x0000 /* Keypad Control register */
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#define KPDK 0x0008 /* Keypad Direct Key register */
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#define KPREC 0x0010 /* Keypad Rotary Encoder register */
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#define KPMK 0x0018 /* Keypad Matrix Key register */
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#define KPAS 0x0020 /* Keypad Automatic Scan register */
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/* Keypad Automatic Scan Multiple Key Presser register 0-3 */
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#define KPASMKP0 0x0028
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#define KPASMKP1 0x0030
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#define KPASMKP2 0x0038
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#define KPASMKP3 0x0040
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#define KPKDI 0x0048
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/* bit definitions */
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2008-03-20 13:48:14 +00:00
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#define KPC_MKRN(n) ((((n) - 1) & 0x7) << 26) /* matrix key row number */
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#define KPC_MKCN(n) ((((n) - 1) & 0x7) << 23) /* matrix key column number */
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#define KPC_DKN(n) ((((n) - 1) & 0x7) << 6) /* direct key number */
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2008-01-31 05:58:52 +00:00
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2008-01-31 05:59:15 +00:00
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#define KPC_AS (0x1 << 30) /* Automatic Scan bit */
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#define KPC_ASACT (0x1 << 29) /* Automatic Scan on Activity */
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#define KPC_MI (0x1 << 22) /* Matrix interrupt bit */
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#define KPC_IMKP (0x1 << 21) /* Ignore Multiple Key Press */
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#define KPC_MS(n) (0x1 << (13 + (n))) /* Matrix scan line 'n' */
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#define KPC_MS_ALL (0xff << 13)
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#define KPC_ME (0x1 << 12) /* Matrix Keypad Enable */
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#define KPC_MIE (0x1 << 11) /* Matrix Interrupt Enable */
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#define KPC_DK_DEB_SEL (0x1 << 9) /* Direct Keypad Debounce Select */
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#define KPC_DI (0x1 << 5) /* Direct key interrupt bit */
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#define KPC_RE_ZERO_DEB (0x1 << 4) /* Rotary Encoder Zero Debounce */
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#define KPC_REE1 (0x1 << 3) /* Rotary Encoder1 Enable */
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#define KPC_REE0 (0x1 << 2) /* Rotary Encoder0 Enable */
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#define KPC_DE (0x1 << 1) /* Direct Keypad Enable */
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#define KPC_DIE (0x1 << 0) /* Direct Keypad interrupt Enable */
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2008-01-31 05:59:03 +00:00
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#define KPDK_DKP (0x1 << 31)
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#define KPDK_DK(n) ((n) & 0xff)
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2008-01-31 05:59:15 +00:00
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#define KPREC_OF1 (0x1 << 31)
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#define kPREC_UF1 (0x1 << 30)
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#define KPREC_OF0 (0x1 << 15)
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#define KPREC_UF0 (0x1 << 14)
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#define KPREC_RECOUNT0(n) ((n) & 0xff)
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#define KPREC_RECOUNT1(n) (((n) >> 16) & 0xff)
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#define KPMK_MKP (0x1 << 31)
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#define KPAS_SO (0x1 << 31)
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#define KPASMKPx_SO (0x1 << 31)
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#define KPAS_MUKP(n) (((n) >> 26) & 0x1f)
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#define KPAS_RP(n) (((n) >> 4) & 0xf)
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#define KPAS_CP(n) ((n) & 0xf)
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2007-03-16 04:58:52 +00:00
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2008-01-31 05:58:37 +00:00
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#define KPASMKP_MKC_MASK (0xff)
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2008-01-31 05:59:15 +00:00
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#define keypad_readl(off) __raw_readl(keypad->mmio_base + (off))
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#define keypad_writel(off, v) __raw_writel((v), keypad->mmio_base + (off))
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2009-09-05 06:46:18 +00:00
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#define MAX_MATRIX_KEY_NUM (MAX_MATRIX_KEY_ROWS * MAX_MATRIX_KEY_COLS)
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#define MAX_KEYPAD_KEYS (MAX_MATRIX_KEY_NUM + MAX_DIRECT_KEY_NUM)
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2008-01-31 05:58:37 +00:00
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struct pxa27x_keypad {
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2013-06-11 05:16:29 +00:00
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const struct pxa27x_keypad_platform_data *pdata;
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2008-01-31 05:58:37 +00:00
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struct clk *clk;
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struct input_dev *input_dev;
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2008-01-31 05:59:15 +00:00
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void __iomem *mmio_base;
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2008-01-31 05:58:37 +00:00
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2008-06-02 15:20:55 +00:00
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int irq;
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2009-09-05 06:46:18 +00:00
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unsigned short keycodes[MAX_KEYPAD_KEYS];
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int rotary_rel_code[2];
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2008-01-31 05:58:37 +00:00
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2014-05-13 02:20:48 +00:00
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unsigned int row_shift;
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2008-01-31 05:58:37 +00:00
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/* state row bits of each column scan */
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uint32_t matrix_key_state[MAX_MATRIX_KEY_COLS];
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2008-01-31 05:59:03 +00:00
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uint32_t direct_key_state;
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unsigned int direct_key_mask;
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2008-01-31 05:58:37 +00:00
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};
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2013-05-06 03:25:10 +00:00
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#ifdef CONFIG_OF
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2013-06-11 05:16:29 +00:00
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static int pxa27x_keypad_matrix_key_parse_dt(struct pxa27x_keypad *keypad,
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struct pxa27x_keypad_platform_data *pdata)
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2013-05-06 03:25:10 +00:00
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{
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struct input_dev *input_dev = keypad->input_dev;
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struct device *dev = input_dev->dev.parent;
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u32 rows, cols;
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int error;
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2016-11-11 20:43:12 +00:00
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error = matrix_keypad_parse_properties(dev, &rows, &cols);
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2013-05-06 03:25:10 +00:00
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if (error)
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return error;
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if (rows > MAX_MATRIX_KEY_ROWS || cols > MAX_MATRIX_KEY_COLS) {
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dev_err(dev, "rows or cols exceeds maximum value\n");
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return -EINVAL;
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}
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pdata->matrix_key_rows = rows;
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pdata->matrix_key_cols = cols;
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error = matrix_keypad_build_keymap(NULL, NULL,
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pdata->matrix_key_rows,
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pdata->matrix_key_cols,
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keypad->keycodes, input_dev);
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if (error)
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return error;
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return 0;
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}
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2013-06-11 05:16:29 +00:00
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static int pxa27x_keypad_direct_key_parse_dt(struct pxa27x_keypad *keypad,
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struct pxa27x_keypad_platform_data *pdata)
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2013-05-06 03:25:10 +00:00
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{
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struct input_dev *input_dev = keypad->input_dev;
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struct device *dev = input_dev->dev.parent;
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struct device_node *np = dev->of_node;
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const __be16 *prop;
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unsigned short code;
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unsigned int proplen, size;
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int i;
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int error;
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error = of_property_read_u32(np, "marvell,direct-key-count",
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&pdata->direct_key_num);
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if (error) {
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/*
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* If do not have marvel,direct-key-count defined,
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* it means direct key is not supported.
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*/
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return error == -EINVAL ? 0 : error;
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}
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error = of_property_read_u32(np, "marvell,direct-key-mask",
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&pdata->direct_key_mask);
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if (error) {
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if (error != -EINVAL)
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return error;
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/*
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* If marvell,direct-key-mask is not defined, driver will use
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* default value. Default value is set when configure the keypad.
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*/
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pdata->direct_key_mask = 0;
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}
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pdata->direct_key_low_active = of_property_read_bool(np,
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"marvell,direct-key-low-active");
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prop = of_get_property(np, "marvell,direct-key-map", &proplen);
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if (!prop)
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return -EINVAL;
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if (proplen % sizeof(u16))
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return -EINVAL;
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size = proplen / sizeof(u16);
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/* Only MAX_DIRECT_KEY_NUM is accepted.*/
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if (size > MAX_DIRECT_KEY_NUM)
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return -EINVAL;
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for (i = 0; i < size; i++) {
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code = be16_to_cpup(prop + i);
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keypad->keycodes[MAX_MATRIX_KEY_NUM + i] = code;
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__set_bit(code, input_dev->keybit);
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}
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return 0;
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}
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2013-06-11 05:16:29 +00:00
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static int pxa27x_keypad_rotary_parse_dt(struct pxa27x_keypad *keypad,
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struct pxa27x_keypad_platform_data *pdata)
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2013-05-06 03:25:10 +00:00
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{
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const __be32 *prop;
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int i, relkey_ret;
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unsigned int code, proplen;
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const char *rotaryname[2] = {
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"marvell,rotary0", "marvell,rotary1"};
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const char relkeyname[] = {"marvell,rotary-rel-key"};
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struct input_dev *input_dev = keypad->input_dev;
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struct device *dev = input_dev->dev.parent;
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struct device_node *np = dev->of_node;
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relkey_ret = of_property_read_u32(np, relkeyname, &code);
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/* if can read correct rotary key-code, we do not need this. */
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if (relkey_ret == 0) {
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unsigned short relcode;
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/* rotary0 taks lower half, rotary1 taks upper half. */
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relcode = code & 0xffff;
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pdata->rotary0_rel_code = (code & 0xffff);
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__set_bit(relcode, input_dev->relbit);
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relcode = code >> 16;
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pdata->rotary1_rel_code = relcode;
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__set_bit(relcode, input_dev->relbit);
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}
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for (i = 0; i < 2; i++) {
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prop = of_get_property(np, rotaryname[i], &proplen);
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/*
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* If the prop is not set, it means keypad does not need
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* initialize the rotaryX.
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*/
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if (!prop)
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continue;
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code = be32_to_cpup(prop);
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/*
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* Not all up/down key code are valid.
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* Now we depends on direct-rel-code.
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*/
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if ((!(code & 0xffff) || !(code >> 16)) && relkey_ret) {
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return relkey_ret;
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} else {
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unsigned int n = MAX_MATRIX_KEY_NUM + (i << 1);
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unsigned short keycode;
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keycode = code & 0xffff;
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keypad->keycodes[n] = keycode;
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__set_bit(keycode, input_dev->keybit);
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keycode = code >> 16;
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keypad->keycodes[n + 1] = keycode;
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__set_bit(keycode, input_dev->keybit);
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if (i == 0)
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pdata->rotary0_rel_code = -1;
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else
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pdata->rotary1_rel_code = -1;
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}
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if (i == 0)
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pdata->enable_rotary0 = 1;
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else
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pdata->enable_rotary1 = 1;
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}
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|
|
|
|
|
|
keypad->rotary_rel_code[0] = pdata->rotary0_rel_code;
|
|
|
|
keypad->rotary_rel_code[1] = pdata->rotary1_rel_code;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pxa27x_keypad_build_keycode_from_dt(struct pxa27x_keypad *keypad)
|
|
|
|
{
|
|
|
|
struct input_dev *input_dev = keypad->input_dev;
|
|
|
|
struct device *dev = input_dev->dev.parent;
|
|
|
|
struct device_node *np = dev->of_node;
|
2013-06-11 05:16:29 +00:00
|
|
|
struct pxa27x_keypad_platform_data *pdata;
|
2013-05-06 03:25:10 +00:00
|
|
|
int error;
|
|
|
|
|
2013-06-11 05:16:29 +00:00
|
|
|
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
|
|
|
|
if (!pdata) {
|
2013-05-06 03:25:10 +00:00
|
|
|
dev_err(dev, "failed to allocate memory for pdata\n");
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
2013-06-11 05:16:29 +00:00
|
|
|
error = pxa27x_keypad_matrix_key_parse_dt(keypad, pdata);
|
2013-05-06 03:25:10 +00:00
|
|
|
if (error) {
|
|
|
|
dev_err(dev, "failed to parse matrix key\n");
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
2013-06-11 05:16:29 +00:00
|
|
|
error = pxa27x_keypad_direct_key_parse_dt(keypad, pdata);
|
2013-05-06 03:25:10 +00:00
|
|
|
if (error) {
|
|
|
|
dev_err(dev, "failed to parse direct key\n");
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
2013-06-11 05:16:29 +00:00
|
|
|
error = pxa27x_keypad_rotary_parse_dt(keypad, pdata);
|
2013-05-06 03:25:10 +00:00
|
|
|
if (error) {
|
|
|
|
dev_err(dev, "failed to parse rotary key\n");
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
error = of_property_read_u32(np, "marvell,debounce-interval",
|
2013-06-11 05:16:29 +00:00
|
|
|
&pdata->debounce_interval);
|
2013-05-06 03:25:10 +00:00
|
|
|
if (error) {
|
2016-10-25 16:35:40 +00:00
|
|
|
dev_err(dev, "failed to parse debounce-interval\n");
|
2013-05-06 03:25:10 +00:00
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The keycodes may not only includes matrix key but also the direct
|
|
|
|
* key or rotary key.
|
|
|
|
*/
|
|
|
|
input_dev->keycodemax = ARRAY_SIZE(keypad->keycodes);
|
|
|
|
|
2013-06-11 05:16:29 +00:00
|
|
|
keypad->pdata = pdata;
|
2013-05-06 03:25:10 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
|
|
static int pxa27x_keypad_build_keycode_from_dt(struct pxa27x_keypad *keypad)
|
|
|
|
{
|
|
|
|
dev_info(keypad->input_dev->dev.parent, "missing platform data\n");
|
|
|
|
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
2013-05-06 03:24:58 +00:00
|
|
|
static int pxa27x_keypad_build_keycode(struct pxa27x_keypad *keypad)
|
2008-01-31 05:58:37 +00:00
|
|
|
{
|
2013-06-11 05:16:29 +00:00
|
|
|
const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
|
2008-01-31 05:58:37 +00:00
|
|
|
struct input_dev *input_dev = keypad->input_dev;
|
2009-09-05 06:46:18 +00:00
|
|
|
unsigned short keycode;
|
2008-01-31 05:58:37 +00:00
|
|
|
int i;
|
2013-05-06 03:24:58 +00:00
|
|
|
int error;
|
2008-01-31 05:58:37 +00:00
|
|
|
|
2015-02-11 17:34:03 +00:00
|
|
|
error = matrix_keypad_build_keymap(pdata->matrix_keymap_data, NULL,
|
2013-05-06 03:24:58 +00:00
|
|
|
pdata->matrix_key_rows,
|
|
|
|
pdata->matrix_key_cols,
|
|
|
|
keypad->keycodes, input_dev);
|
|
|
|
if (error)
|
|
|
|
return error;
|
2008-01-31 05:58:37 +00:00
|
|
|
|
2013-05-06 03:24:58 +00:00
|
|
|
/*
|
|
|
|
* The keycodes may not only include matrix keys but also the direct
|
|
|
|
* or rotary keys.
|
|
|
|
*/
|
|
|
|
input_dev->keycodemax = ARRAY_SIZE(keypad->keycodes);
|
2008-05-28 18:35:52 +00:00
|
|
|
|
2013-05-06 03:24:58 +00:00
|
|
|
/* For direct keys. */
|
2009-09-05 06:46:18 +00:00
|
|
|
for (i = 0; i < pdata->direct_key_num; i++) {
|
|
|
|
keycode = pdata->direct_key_map[i];
|
|
|
|
keypad->keycodes[MAX_MATRIX_KEY_NUM + i] = keycode;
|
|
|
|
__set_bit(keycode, input_dev->keybit);
|
|
|
|
}
|
2008-01-31 05:59:03 +00:00
|
|
|
|
2008-05-28 18:35:52 +00:00
|
|
|
if (pdata->enable_rotary0) {
|
|
|
|
if (pdata->rotary0_up_key && pdata->rotary0_down_key) {
|
2009-09-05 06:46:18 +00:00
|
|
|
keycode = pdata->rotary0_up_key;
|
|
|
|
keypad->keycodes[MAX_MATRIX_KEY_NUM + 0] = keycode;
|
|
|
|
__set_bit(keycode, input_dev->keybit);
|
|
|
|
|
|
|
|
keycode = pdata->rotary0_down_key;
|
|
|
|
keypad->keycodes[MAX_MATRIX_KEY_NUM + 1] = keycode;
|
|
|
|
__set_bit(keycode, input_dev->keybit);
|
|
|
|
|
|
|
|
keypad->rotary_rel_code[0] = -1;
|
|
|
|
} else {
|
|
|
|
keypad->rotary_rel_code[0] = pdata->rotary0_rel_code;
|
2009-07-23 04:51:40 +00:00
|
|
|
__set_bit(pdata->rotary0_rel_code, input_dev->relbit);
|
2009-09-05 06:46:18 +00:00
|
|
|
}
|
2008-05-28 18:35:52 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if (pdata->enable_rotary1) {
|
|
|
|
if (pdata->rotary1_up_key && pdata->rotary1_down_key) {
|
2009-09-05 06:46:18 +00:00
|
|
|
keycode = pdata->rotary1_up_key;
|
|
|
|
keypad->keycodes[MAX_MATRIX_KEY_NUM + 2] = keycode;
|
|
|
|
__set_bit(keycode, input_dev->keybit);
|
|
|
|
|
|
|
|
keycode = pdata->rotary1_down_key;
|
|
|
|
keypad->keycodes[MAX_MATRIX_KEY_NUM + 3] = keycode;
|
|
|
|
__set_bit(keycode, input_dev->keybit);
|
|
|
|
|
|
|
|
keypad->rotary_rel_code[1] = -1;
|
|
|
|
} else {
|
|
|
|
keypad->rotary_rel_code[1] = pdata->rotary1_rel_code;
|
2009-07-23 04:51:40 +00:00
|
|
|
__set_bit(pdata->rotary1_rel_code, input_dev->relbit);
|
2009-09-05 06:46:18 +00:00
|
|
|
}
|
2008-05-28 18:35:52 +00:00
|
|
|
}
|
2008-01-31 05:58:37 +00:00
|
|
|
|
2009-09-05 06:46:18 +00:00
|
|
|
__clear_bit(KEY_RESERVED, input_dev->keybit);
|
2013-05-06 03:24:58 +00:00
|
|
|
|
|
|
|
return 0;
|
2008-01-31 05:58:37 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void pxa27x_keypad_scan_matrix(struct pxa27x_keypad *keypad)
|
|
|
|
{
|
2013-06-11 05:16:29 +00:00
|
|
|
const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
|
2009-09-05 06:46:18 +00:00
|
|
|
struct input_dev *input_dev = keypad->input_dev;
|
2008-01-31 05:58:37 +00:00
|
|
|
int row, col, num_keys_pressed = 0;
|
|
|
|
uint32_t new_state[MAX_MATRIX_KEY_COLS];
|
2008-01-31 05:59:15 +00:00
|
|
|
uint32_t kpas = keypad_readl(KPAS);
|
2008-01-31 05:58:37 +00:00
|
|
|
|
|
|
|
num_keys_pressed = KPAS_MUKP(kpas);
|
|
|
|
|
|
|
|
memset(new_state, 0, sizeof(new_state));
|
|
|
|
|
|
|
|
if (num_keys_pressed == 0)
|
|
|
|
goto scan;
|
|
|
|
|
|
|
|
if (num_keys_pressed == 1) {
|
|
|
|
col = KPAS_CP(kpas);
|
|
|
|
row = KPAS_RP(kpas);
|
|
|
|
|
|
|
|
/* if invalid row/col, treat as no key pressed */
|
|
|
|
if (col >= pdata->matrix_key_cols ||
|
|
|
|
row >= pdata->matrix_key_rows)
|
|
|
|
goto scan;
|
|
|
|
|
|
|
|
new_state[col] = (1 << row);
|
|
|
|
goto scan;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (num_keys_pressed > 1) {
|
2008-01-31 05:59:15 +00:00
|
|
|
uint32_t kpasmkp0 = keypad_readl(KPASMKP0);
|
|
|
|
uint32_t kpasmkp1 = keypad_readl(KPASMKP1);
|
|
|
|
uint32_t kpasmkp2 = keypad_readl(KPASMKP2);
|
|
|
|
uint32_t kpasmkp3 = keypad_readl(KPASMKP3);
|
2008-01-31 05:58:37 +00:00
|
|
|
|
|
|
|
new_state[0] = kpasmkp0 & KPASMKP_MKC_MASK;
|
|
|
|
new_state[1] = (kpasmkp0 >> 16) & KPASMKP_MKC_MASK;
|
|
|
|
new_state[2] = kpasmkp1 & KPASMKP_MKC_MASK;
|
|
|
|
new_state[3] = (kpasmkp1 >> 16) & KPASMKP_MKC_MASK;
|
|
|
|
new_state[4] = kpasmkp2 & KPASMKP_MKC_MASK;
|
|
|
|
new_state[5] = (kpasmkp2 >> 16) & KPASMKP_MKC_MASK;
|
|
|
|
new_state[6] = kpasmkp3 & KPASMKP_MKC_MASK;
|
|
|
|
new_state[7] = (kpasmkp3 >> 16) & KPASMKP_MKC_MASK;
|
|
|
|
}
|
|
|
|
scan:
|
|
|
|
for (col = 0; col < pdata->matrix_key_cols; col++) {
|
|
|
|
uint32_t bits_changed;
|
2009-09-05 06:46:18 +00:00
|
|
|
int code;
|
2008-01-31 05:58:37 +00:00
|
|
|
|
|
|
|
bits_changed = keypad->matrix_key_state[col] ^ new_state[col];
|
|
|
|
if (bits_changed == 0)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
for (row = 0; row < pdata->matrix_key_rows; row++) {
|
|
|
|
if ((bits_changed & (1 << row)) == 0)
|
|
|
|
continue;
|
|
|
|
|
2014-05-13 02:20:48 +00:00
|
|
|
code = MATRIX_SCAN_CODE(row, col, keypad->row_shift);
|
|
|
|
|
2009-09-05 06:46:18 +00:00
|
|
|
input_event(input_dev, EV_MSC, MSC_SCAN, code);
|
|
|
|
input_report_key(input_dev, keypad->keycodes[code],
|
|
|
|
new_state[col] & (1 << row));
|
2008-01-31 05:58:37 +00:00
|
|
|
}
|
|
|
|
}
|
2009-09-05 06:46:18 +00:00
|
|
|
input_sync(input_dev);
|
2008-01-31 05:58:37 +00:00
|
|
|
memcpy(keypad->matrix_key_state, new_state, sizeof(new_state));
|
|
|
|
}
|
2007-08-20 09:19:39 +00:00
|
|
|
|
2008-01-31 05:58:52 +00:00
|
|
|
#define DEFAULT_KPREC (0x007f007f)
|
|
|
|
|
2008-01-31 05:59:03 +00:00
|
|
|
static inline int rotary_delta(uint32_t kprec)
|
|
|
|
{
|
|
|
|
if (kprec & KPREC_OF0)
|
|
|
|
return (kprec & 0xff) + 0x7f;
|
|
|
|
else if (kprec & KPREC_UF0)
|
|
|
|
return (kprec & 0xff) - 0x7f - 0xff;
|
|
|
|
else
|
|
|
|
return (kprec & 0xff) - 0x7f;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void report_rotary_event(struct pxa27x_keypad *keypad, int r, int delta)
|
|
|
|
{
|
|
|
|
struct input_dev *dev = keypad->input_dev;
|
|
|
|
|
|
|
|
if (delta == 0)
|
|
|
|
return;
|
|
|
|
|
2009-09-05 06:46:18 +00:00
|
|
|
if (keypad->rotary_rel_code[r] == -1) {
|
|
|
|
int code = MAX_MATRIX_KEY_NUM + 2 * r + (delta > 0 ? 0 : 1);
|
|
|
|
unsigned char keycode = keypad->keycodes[code];
|
2008-01-31 05:59:03 +00:00
|
|
|
|
|
|
|
/* simulate a press-n-release */
|
2009-09-05 06:46:18 +00:00
|
|
|
input_event(dev, EV_MSC, MSC_SCAN, code);
|
2008-01-31 05:59:03 +00:00
|
|
|
input_report_key(dev, keycode, 1);
|
|
|
|
input_sync(dev);
|
2009-09-05 06:46:18 +00:00
|
|
|
input_event(dev, EV_MSC, MSC_SCAN, code);
|
2008-01-31 05:59:03 +00:00
|
|
|
input_report_key(dev, keycode, 0);
|
|
|
|
input_sync(dev);
|
|
|
|
} else {
|
|
|
|
input_report_rel(dev, keypad->rotary_rel_code[r], delta);
|
|
|
|
input_sync(dev);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void pxa27x_keypad_scan_rotary(struct pxa27x_keypad *keypad)
|
|
|
|
{
|
2013-06-11 05:16:29 +00:00
|
|
|
const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
|
2008-01-31 05:59:03 +00:00
|
|
|
uint32_t kprec;
|
|
|
|
|
|
|
|
/* read and reset to default count value */
|
2008-01-31 05:59:15 +00:00
|
|
|
kprec = keypad_readl(KPREC);
|
|
|
|
keypad_writel(KPREC, DEFAULT_KPREC);
|
2008-01-31 05:59:03 +00:00
|
|
|
|
|
|
|
if (pdata->enable_rotary0)
|
|
|
|
report_rotary_event(keypad, 0, rotary_delta(kprec));
|
|
|
|
|
|
|
|
if (pdata->enable_rotary1)
|
|
|
|
report_rotary_event(keypad, 1, rotary_delta(kprec >> 16));
|
|
|
|
}
|
|
|
|
|
|
|
|
static void pxa27x_keypad_scan_direct(struct pxa27x_keypad *keypad)
|
|
|
|
{
|
2013-06-11 05:16:29 +00:00
|
|
|
const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
|
2009-09-05 06:46:18 +00:00
|
|
|
struct input_dev *input_dev = keypad->input_dev;
|
2008-01-31 05:59:03 +00:00
|
|
|
unsigned int new_state;
|
|
|
|
uint32_t kpdk, bits_changed;
|
|
|
|
int i;
|
|
|
|
|
2008-01-31 05:59:15 +00:00
|
|
|
kpdk = keypad_readl(KPDK);
|
2008-01-31 05:59:03 +00:00
|
|
|
|
|
|
|
if (pdata->enable_rotary0 || pdata->enable_rotary1)
|
|
|
|
pxa27x_keypad_scan_rotary(keypad);
|
|
|
|
|
2012-04-01 02:08:03 +00:00
|
|
|
/*
|
|
|
|
* The KPDR_DK only output the key pin level, so it relates to board,
|
|
|
|
* and low level may be active.
|
|
|
|
*/
|
|
|
|
if (pdata->direct_key_low_active)
|
|
|
|
new_state = ~KPDK_DK(kpdk) & keypad->direct_key_mask;
|
|
|
|
else
|
|
|
|
new_state = KPDK_DK(kpdk) & keypad->direct_key_mask;
|
|
|
|
|
2008-01-31 05:59:03 +00:00
|
|
|
bits_changed = keypad->direct_key_state ^ new_state;
|
|
|
|
|
|
|
|
if (bits_changed == 0)
|
|
|
|
return;
|
|
|
|
|
|
|
|
for (i = 0; i < pdata->direct_key_num; i++) {
|
2009-09-05 06:46:18 +00:00
|
|
|
if (bits_changed & (1 << i)) {
|
|
|
|
int code = MAX_MATRIX_KEY_NUM + i;
|
|
|
|
|
|
|
|
input_event(input_dev, EV_MSC, MSC_SCAN, code);
|
|
|
|
input_report_key(input_dev, keypad->keycodes[code],
|
|
|
|
new_state & (1 << i));
|
|
|
|
}
|
2008-01-31 05:59:03 +00:00
|
|
|
}
|
2009-09-05 06:46:18 +00:00
|
|
|
input_sync(input_dev);
|
2008-01-31 05:59:03 +00:00
|
|
|
keypad->direct_key_state = new_state;
|
|
|
|
}
|
|
|
|
|
2010-09-03 22:28:09 +00:00
|
|
|
static void clear_wakeup_event(struct pxa27x_keypad *keypad)
|
|
|
|
{
|
2013-06-11 05:16:29 +00:00
|
|
|
const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
|
2010-09-03 22:28:09 +00:00
|
|
|
|
|
|
|
if (pdata->clear_wakeup_event)
|
|
|
|
(pdata->clear_wakeup_event)();
|
|
|
|
}
|
|
|
|
|
2008-01-31 05:56:46 +00:00
|
|
|
static irqreturn_t pxa27x_keypad_irq_handler(int irq, void *dev_id)
|
2007-03-16 04:58:52 +00:00
|
|
|
{
|
2008-01-31 05:58:37 +00:00
|
|
|
struct pxa27x_keypad *keypad = dev_id;
|
2008-01-31 05:59:15 +00:00
|
|
|
unsigned long kpc = keypad_readl(KPC);
|
2008-01-31 05:59:03 +00:00
|
|
|
|
2010-09-03 22:28:09 +00:00
|
|
|
clear_wakeup_event(keypad);
|
|
|
|
|
2008-01-31 05:59:03 +00:00
|
|
|
if (kpc & KPC_DI)
|
|
|
|
pxa27x_keypad_scan_direct(keypad);
|
2007-03-16 04:58:52 +00:00
|
|
|
|
2008-01-31 05:58:37 +00:00
|
|
|
if (kpc & KPC_MI)
|
|
|
|
pxa27x_keypad_scan_matrix(keypad);
|
2007-03-16 04:58:52 +00:00
|
|
|
|
|
|
|
return IRQ_HANDLED;
|
|
|
|
}
|
|
|
|
|
2008-01-31 05:58:52 +00:00
|
|
|
static void pxa27x_keypad_config(struct pxa27x_keypad *keypad)
|
2007-03-16 04:58:52 +00:00
|
|
|
{
|
2013-06-11 05:16:29 +00:00
|
|
|
const struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
|
2008-01-31 05:59:03 +00:00
|
|
|
unsigned int mask = 0, direct_key_num = 0;
|
2008-01-31 05:58:52 +00:00
|
|
|
unsigned long kpc = 0;
|
2008-01-31 05:58:37 +00:00
|
|
|
|
2012-10-30 06:45:09 +00:00
|
|
|
/* clear pending interrupt bit */
|
|
|
|
keypad_readl(KPC);
|
|
|
|
|
2008-01-31 05:58:52 +00:00
|
|
|
/* enable matrix keys with automatic scan */
|
|
|
|
if (pdata->matrix_key_rows && pdata->matrix_key_cols) {
|
|
|
|
kpc |= KPC_ASACT | KPC_MIE | KPC_ME | KPC_MS_ALL;
|
|
|
|
kpc |= KPC_MKRN(pdata->matrix_key_rows) |
|
|
|
|
KPC_MKCN(pdata->matrix_key_cols);
|
|
|
|
}
|
2007-03-16 04:58:52 +00:00
|
|
|
|
2008-01-31 05:59:03 +00:00
|
|
|
/* enable rotary key, debounce interval same as direct keys */
|
|
|
|
if (pdata->enable_rotary0) {
|
|
|
|
mask |= 0x03;
|
|
|
|
direct_key_num = 2;
|
|
|
|
kpc |= KPC_REE0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (pdata->enable_rotary1) {
|
|
|
|
mask |= 0x0c;
|
|
|
|
direct_key_num = 4;
|
|
|
|
kpc |= KPC_REE1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (pdata->direct_key_num > direct_key_num)
|
|
|
|
direct_key_num = pdata->direct_key_num;
|
|
|
|
|
2012-04-01 02:08:04 +00:00
|
|
|
/*
|
|
|
|
* Direct keys usage may not start from KP_DKIN0, check the platfrom
|
|
|
|
* mask data to config the specific.
|
|
|
|
*/
|
|
|
|
if (pdata->direct_key_mask)
|
|
|
|
keypad->direct_key_mask = pdata->direct_key_mask;
|
|
|
|
else
|
|
|
|
keypad->direct_key_mask = ((1 << direct_key_num) - 1) & ~mask;
|
2008-01-31 05:59:03 +00:00
|
|
|
|
|
|
|
/* enable direct key */
|
|
|
|
if (direct_key_num)
|
|
|
|
kpc |= KPC_DE | KPC_DIE | KPC_DKN(direct_key_num);
|
2007-03-16 04:58:52 +00:00
|
|
|
|
2008-01-31 05:59:15 +00:00
|
|
|
keypad_writel(KPC, kpc | KPC_RE_ZERO_DEB);
|
|
|
|
keypad_writel(KPREC, DEFAULT_KPREC);
|
2008-01-31 05:59:23 +00:00
|
|
|
keypad_writel(KPKDI, pdata->debounce_interval);
|
2008-01-31 05:58:52 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int pxa27x_keypad_open(struct input_dev *dev)
|
|
|
|
{
|
|
|
|
struct pxa27x_keypad *keypad = input_get_drvdata(dev);
|
2017-08-31 18:39:13 +00:00
|
|
|
int ret;
|
2007-03-16 04:58:52 +00:00
|
|
|
/* Enable unit clock */
|
2017-08-31 18:39:13 +00:00
|
|
|
ret = clk_prepare_enable(keypad->clk);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
2008-01-31 05:58:52 +00:00
|
|
|
pxa27x_keypad_config(keypad);
|
2007-03-16 04:58:52 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-01-31 05:56:46 +00:00
|
|
|
static void pxa27x_keypad_close(struct input_dev *dev)
|
2007-03-16 04:58:52 +00:00
|
|
|
{
|
2008-01-31 05:58:37 +00:00
|
|
|
struct pxa27x_keypad *keypad = input_get_drvdata(dev);
|
|
|
|
|
2007-03-16 04:58:52 +00:00
|
|
|
/* Disable clock unit */
|
2012-04-01 02:08:01 +00:00
|
|
|
clk_disable_unprepare(keypad->clk);
|
2007-03-16 04:58:52 +00:00
|
|
|
}
|
|
|
|
|
2013-06-11 05:10:07 +00:00
|
|
|
#ifdef CONFIG_PM_SLEEP
|
2009-07-25 05:01:43 +00:00
|
|
|
static int pxa27x_keypad_suspend(struct device *dev)
|
2007-03-16 04:58:52 +00:00
|
|
|
{
|
2009-07-25 05:01:43 +00:00
|
|
|
struct platform_device *pdev = to_platform_device(dev);
|
2008-01-31 05:58:37 +00:00
|
|
|
struct pxa27x_keypad *keypad = platform_get_drvdata(pdev);
|
2007-03-16 04:58:52 +00:00
|
|
|
|
2012-04-01 02:08:01 +00:00
|
|
|
/*
|
|
|
|
* If the keypad is used a wake up source, clock can not be disabled.
|
|
|
|
* Or it can not detect the key pressing.
|
|
|
|
*/
|
2008-06-02 15:20:55 +00:00
|
|
|
if (device_may_wakeup(&pdev->dev))
|
|
|
|
enable_irq_wake(keypad->irq);
|
2012-04-01 02:08:01 +00:00
|
|
|
else
|
|
|
|
clk_disable_unprepare(keypad->clk);
|
2008-06-02 15:20:55 +00:00
|
|
|
|
2007-03-16 04:58:52 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-07-25 05:01:43 +00:00
|
|
|
static int pxa27x_keypad_resume(struct device *dev)
|
2007-03-16 04:58:52 +00:00
|
|
|
{
|
2009-07-25 05:01:43 +00:00
|
|
|
struct platform_device *pdev = to_platform_device(dev);
|
2008-01-31 05:58:37 +00:00
|
|
|
struct pxa27x_keypad *keypad = platform_get_drvdata(pdev);
|
|
|
|
struct input_dev *input_dev = keypad->input_dev;
|
2017-08-31 18:39:13 +00:00
|
|
|
int ret = 0;
|
2007-03-16 04:58:52 +00:00
|
|
|
|
2012-04-01 02:08:01 +00:00
|
|
|
/*
|
|
|
|
* If the keypad is used as wake up source, the clock is not turned
|
|
|
|
* off. So do not need configure it again.
|
|
|
|
*/
|
|
|
|
if (device_may_wakeup(&pdev->dev)) {
|
2008-06-02 15:20:55 +00:00
|
|
|
disable_irq_wake(keypad->irq);
|
2012-04-01 02:08:01 +00:00
|
|
|
} else {
|
|
|
|
mutex_lock(&input_dev->mutex);
|
2008-06-02 15:20:55 +00:00
|
|
|
|
2020-10-05 04:16:07 +00:00
|
|
|
if (input_device_enabled(input_dev)) {
|
2012-04-01 02:08:01 +00:00
|
|
|
/* Enable unit clock */
|
2017-08-31 18:39:13 +00:00
|
|
|
ret = clk_prepare_enable(keypad->clk);
|
|
|
|
if (!ret)
|
|
|
|
pxa27x_keypad_config(keypad);
|
2012-04-01 02:08:01 +00:00
|
|
|
}
|
2007-03-16 04:58:52 +00:00
|
|
|
|
2012-04-01 02:08:01 +00:00
|
|
|
mutex_unlock(&input_dev->mutex);
|
2007-03-16 04:58:52 +00:00
|
|
|
}
|
|
|
|
|
2017-08-31 18:39:13 +00:00
|
|
|
return ret;
|
2007-03-16 04:58:52 +00:00
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2013-06-11 05:10:07 +00:00
|
|
|
static SIMPLE_DEV_PM_OPS(pxa27x_keypad_pm_ops,
|
|
|
|
pxa27x_keypad_suspend, pxa27x_keypad_resume);
|
|
|
|
|
|
|
|
|
2012-11-24 05:38:25 +00:00
|
|
|
static int pxa27x_keypad_probe(struct platform_device *pdev)
|
2007-03-16 04:58:52 +00:00
|
|
|
{
|
2013-06-11 05:16:29 +00:00
|
|
|
const struct pxa27x_keypad_platform_data *pdata =
|
|
|
|
dev_get_platdata(&pdev->dev);
|
2013-05-06 03:25:10 +00:00
|
|
|
struct device_node *np = pdev->dev.of_node;
|
2008-01-31 05:58:37 +00:00
|
|
|
struct pxa27x_keypad *keypad;
|
2007-03-16 04:58:52 +00:00
|
|
|
struct input_dev *input_dev;
|
2008-01-31 05:59:15 +00:00
|
|
|
struct resource *res;
|
|
|
|
int irq, error;
|
2007-03-16 04:58:52 +00:00
|
|
|
|
2013-05-06 03:25:10 +00:00
|
|
|
/* Driver need build keycode from device tree or pdata */
|
|
|
|
if (!np && !pdata)
|
2009-09-05 06:46:18 +00:00
|
|
|
return -EINVAL;
|
2008-01-31 05:58:37 +00:00
|
|
|
|
2008-01-31 05:59:15 +00:00
|
|
|
irq = platform_get_irq(pdev, 0);
|
2019-08-14 17:46:38 +00:00
|
|
|
if (irq < 0)
|
2009-09-05 06:46:18 +00:00
|
|
|
return -ENXIO;
|
2008-01-31 05:59:15 +00:00
|
|
|
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
|
|
if (res == NULL) {
|
|
|
|
dev_err(&pdev->dev, "failed to get I/O memory\n");
|
2009-09-05 06:46:18 +00:00
|
|
|
return -ENXIO;
|
|
|
|
}
|
|
|
|
|
2014-10-08 18:19:43 +00:00
|
|
|
keypad = devm_kzalloc(&pdev->dev, sizeof(*keypad),
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (!keypad)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
input_dev = devm_input_allocate_device(&pdev->dev);
|
|
|
|
if (!input_dev)
|
|
|
|
return -ENOMEM;
|
2008-01-31 05:59:15 +00:00
|
|
|
|
2009-09-05 06:46:18 +00:00
|
|
|
keypad->pdata = pdata;
|
|
|
|
keypad->input_dev = input_dev;
|
|
|
|
keypad->irq = irq;
|
|
|
|
|
2014-10-08 18:19:43 +00:00
|
|
|
keypad->mmio_base = devm_ioremap_resource(&pdev->dev, res);
|
|
|
|
if (IS_ERR(keypad->mmio_base))
|
|
|
|
return PTR_ERR(keypad->mmio_base);
|
2008-01-31 05:59:15 +00:00
|
|
|
|
2014-10-08 18:19:43 +00:00
|
|
|
keypad->clk = devm_clk_get(&pdev->dev, NULL);
|
2008-01-31 05:58:37 +00:00
|
|
|
if (IS_ERR(keypad->clk)) {
|
|
|
|
dev_err(&pdev->dev, "failed to get keypad clock\n");
|
2014-10-08 18:19:43 +00:00
|
|
|
return PTR_ERR(keypad->clk);
|
2007-08-20 09:19:39 +00:00
|
|
|
}
|
|
|
|
|
2008-01-31 05:59:15 +00:00
|
|
|
input_dev->name = pdev->name;
|
2007-03-16 04:58:52 +00:00
|
|
|
input_dev->id.bustype = BUS_HOST;
|
2008-01-31 05:56:46 +00:00
|
|
|
input_dev->open = pxa27x_keypad_open;
|
|
|
|
input_dev->close = pxa27x_keypad_close;
|
2007-04-12 05:34:58 +00:00
|
|
|
input_dev->dev.parent = &pdev->dev;
|
2007-03-16 04:58:52 +00:00
|
|
|
|
2009-09-05 06:46:18 +00:00
|
|
|
input_dev->keycode = keypad->keycodes;
|
|
|
|
input_dev->keycodesize = sizeof(keypad->keycodes[0]);
|
|
|
|
input_dev->keycodemax = ARRAY_SIZE(keypad->keycodes);
|
|
|
|
|
2008-01-31 05:58:37 +00:00
|
|
|
input_set_drvdata(input_dev, keypad);
|
|
|
|
|
2008-05-28 18:35:52 +00:00
|
|
|
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
|
2009-09-05 06:46:18 +00:00
|
|
|
input_set_capability(input_dev, EV_MSC, MSC_SCAN);
|
2008-01-31 05:58:37 +00:00
|
|
|
|
2013-09-18 15:07:41 +00:00
|
|
|
if (pdata) {
|
2013-05-06 03:25:10 +00:00
|
|
|
error = pxa27x_keypad_build_keycode(keypad);
|
2013-09-18 15:07:41 +00:00
|
|
|
} else {
|
2013-05-06 03:25:10 +00:00
|
|
|
error = pxa27x_keypad_build_keycode_from_dt(keypad);
|
2013-09-18 15:07:41 +00:00
|
|
|
/*
|
|
|
|
* Data that we get from DT resides in dynamically
|
|
|
|
* allocated memory so we need to update our pdata
|
|
|
|
* pointer.
|
|
|
|
*/
|
|
|
|
pdata = keypad->pdata;
|
|
|
|
}
|
2013-05-06 03:24:58 +00:00
|
|
|
if (error) {
|
|
|
|
dev_err(&pdev->dev, "failed to build keycode\n");
|
2014-10-08 18:19:43 +00:00
|
|
|
return error;
|
2013-05-06 03:24:58 +00:00
|
|
|
}
|
2009-09-05 06:46:18 +00:00
|
|
|
|
2014-05-13 02:20:48 +00:00
|
|
|
keypad->row_shift = get_count_order(pdata->matrix_key_cols);
|
|
|
|
|
2009-09-05 06:46:18 +00:00
|
|
|
if ((pdata->enable_rotary0 && keypad->rotary_rel_code[0] != -1) ||
|
|
|
|
(pdata->enable_rotary1 && keypad->rotary_rel_code[1] != -1)) {
|
|
|
|
input_dev->evbit[0] |= BIT_MASK(EV_REL);
|
|
|
|
}
|
2007-03-16 04:58:52 +00:00
|
|
|
|
2014-10-08 18:19:43 +00:00
|
|
|
error = devm_request_irq(&pdev->dev, irq, pxa27x_keypad_irq_handler,
|
|
|
|
0, pdev->name, keypad);
|
2007-03-16 04:58:52 +00:00
|
|
|
if (error) {
|
2008-01-31 05:59:15 +00:00
|
|
|
dev_err(&pdev->dev, "failed to request IRQ\n");
|
2014-10-08 18:19:43 +00:00
|
|
|
return error;
|
2007-03-16 04:58:52 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Register the input device */
|
|
|
|
error = input_register_device(input_dev);
|
2008-01-31 05:59:15 +00:00
|
|
|
if (error) {
|
|
|
|
dev_err(&pdev->dev, "failed to register input device\n");
|
2014-10-08 18:19:43 +00:00
|
|
|
return error;
|
2008-01-31 05:59:15 +00:00
|
|
|
}
|
2007-03-16 04:58:52 +00:00
|
|
|
|
2009-09-05 06:46:18 +00:00
|
|
|
platform_set_drvdata(pdev, keypad);
|
2008-06-02 15:20:55 +00:00
|
|
|
device_init_wakeup(&pdev->dev, 1);
|
|
|
|
|
2007-03-16 04:58:52 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-05-06 03:25:10 +00:00
|
|
|
#ifdef CONFIG_OF
|
|
|
|
static const struct of_device_id pxa27x_keypad_dt_match[] = {
|
|
|
|
{ .compatible = "marvell,pxa27x-keypad" },
|
|
|
|
{},
|
|
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(of, pxa27x_keypad_dt_match);
|
|
|
|
#endif
|
|
|
|
|
2008-01-31 05:56:46 +00:00
|
|
|
static struct platform_driver pxa27x_keypad_driver = {
|
|
|
|
.probe = pxa27x_keypad_probe,
|
2007-03-16 04:58:52 +00:00
|
|
|
.driver = {
|
2008-01-31 05:59:15 +00:00
|
|
|
.name = "pxa27x-keypad",
|
2013-05-06 03:25:10 +00:00
|
|
|
.of_match_table = of_match_ptr(pxa27x_keypad_dt_match),
|
2009-07-25 05:01:43 +00:00
|
|
|
.pm = &pxa27x_keypad_pm_ops,
|
2007-03-16 04:58:52 +00:00
|
|
|
},
|
|
|
|
};
|
2011-11-29 19:08:39 +00:00
|
|
|
module_platform_driver(pxa27x_keypad_driver);
|
2007-03-16 04:58:52 +00:00
|
|
|
|
2008-01-31 05:56:46 +00:00
|
|
|
MODULE_DESCRIPTION("PXA27x Keypad Controller Driver");
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2007-03-16 04:58:52 +00:00
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MODULE_LICENSE("GPL");
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2014-10-08 18:19:43 +00:00
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/* work with hotplug and coldplug */
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MODULE_ALIAS("platform:pxa27x-keypad");
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