xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Browse Source 
Pull input subsystem updates from Dmitry Torokhov:

 - updated support for Synaptics RMI4 devices, including support for
   SMBus controllers, firmware update support, sensor tuning, and PS/2
   guest support

 - ALPS driver now supports tracksticks on SS5 controllers

 - i8042 now uses chassis info to skip selftest on Asus laptops as list
   of individual models became too unwieldy

 - miscellaneous fixes to other drivers

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (67 commits)
  Input: imx6ul_tsc - generalize the averaging property
  Input: drv260x - use generic device properties
  Input: drv260x - use temporary for &client->dev
  Input: drv260x - fix input device's parent assignment
  Input: synaptics-rmi4 - add support for F34 V7 bootloader
  Input: drv260x - fix initializing overdrive voltage
  Input: ALPS - fix protcol -> protocol
  Input: i8042 - comment #else/#endif of CONFIG_PNP
  Input: lpc32xx-keys - fix invalid error handling of a requested irq
  Input: synaptics-rmi4 - fix debug for sensor clip
  Input: synaptics-rmi4 - store the attn data in the driver
  Input: synaptics-rmi4 - allow to add attention data
  Input: synaptics-rmi4 - f03 - grab data passed by transport device
  Input: synaptics-rmi4 - add support for F03
  Input: imx6ul_tsc - convert int to u32
  Input: imx6ul_tsc - add mask when set REG_ADC_CFG
  Input: synaptics-rmi4 - have only one struct platform data
  Input: synaptics-rmi4 - remove EXPORT_SYMBOL_GPL for internal functions
  Input: synaptics-rmi4 - remove mutex calls while updating the firmware
  Input: drv2667 - fix misuse of regmap_update_bits
  ...
This commit is contained in:
Linus Torvalds
2016-12-17 16:45:00 -08:00
parent c07dee7348 f26e8817b2
commit af79ce47ef
51 changed files with 4228 additions and 779 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
drivers/input/rmi4/Kconfig
View File

@@ -27,6 +27,27 @@ config RMI4_SPI
If unsure, say N.
config RMI4_SMB
tristate "RMI4 SMB Support"
depends on RMI4_CORE && I2C
help
Say Y here if you want to support RMI4 devices connected to an SMB
bus.
If unsure, say N.
To compile this driver as a module, choose M here: the module will be
called rmi_smbus.
config RMI4_F03
bool "RMI4 Function 03 (PS2 Guest)"
depends on RMI4_CORE && SERIO
help
Say Y here if you want to add support for RMI4 function 03.
Function 03 provides PS2 guest support for RMI4 devices. This
includes support for TrackPoints on TouchPads.
config RMI4_2D_SENSOR
bool
depends on RMI4_CORE
@@ -62,13 +83,34 @@ config RMI4_F30
Function 30 provides GPIO and LED support for RMI4 devices. This
includes support for buttons on TouchPads and ClickPads.
config RMI4_F34
bool "RMI4 Function 34 (Device reflash)"
depends on RMI4_CORE
select FW_LOADER
help
Say Y here if you want to add support for RMI4 function 34.
Function 34 provides support for upgrading the firmware on the RMI4
device via the firmware loader interface. This is triggered using a
sysfs attribute.
config RMI4_F54
bool "RMI4 Function 54 (Analog diagnostics)"
depends on RMI4_CORE
depends on VIDEO_V4L2=y || (RMI4_CORE=m && VIDEO_V4L2=m)
select VIDEOBUF2_VMALLOC
select RMI4_F55
help
Say Y here if you want to add support for RMI4 function 54
Function 54 provides access to various diagnostic features in certain
RMI4 touch sensors.
config RMI4_F55
bool "RMI4 Function 55 (Sensor tuning)"
depends on RMI4_CORE
help
Say Y here if you want to add support for RMI4 function 55
Function 55 provides access to the RMI4 touch sensor tuning
mechanism.

4
drivers/input/rmi4/Makefile
View File

@@ -4,11 +4,15 @@ rmi_core-y := rmi_bus.o rmi_driver.o rmi_f01.o
rmi_core-$(CONFIG_RMI4_2D_SENSOR) += rmi_2d_sensor.o
# Function drivers
rmi_core-$(CONFIG_RMI4_F03) += rmi_f03.o
rmi_core-$(CONFIG_RMI4_F11) += rmi_f11.o
rmi_core-$(CONFIG_RMI4_F12) += rmi_f12.o
rmi_core-$(CONFIG_RMI4_F30) += rmi_f30.o
rmi_core-$(CONFIG_RMI4_F34) += rmi_f34.o rmi_f34v7.o
rmi_core-$(CONFIG_RMI4_F54) += rmi_f54.o
rmi_core-$(CONFIG_RMI4_F55) += rmi_f55.o
# Transports
obj-$(CONFIG_RMI4_I2C) += rmi_i2c.o
obj-$(CONFIG_RMI4_SPI) += rmi_spi.o
obj-$(CONFIG_RMI4_SMB) += rmi_smbus.o

10
drivers/input/rmi4/rmi_2d_sensor.c
View File

@@ -177,10 +177,12 @@ static void rmi_2d_sensor_set_input_params(struct rmi_2d_sensor *sensor)
sensor->dmax = DMAX * res_x;
}
input_set_abs_params(input, ABS_MT_PRESSURE, 0, 0xff, 0, 0);
input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 0x0f, 0, 0);
input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 0x0f, 0, 0);
input_set_abs_params(input, ABS_MT_ORIENTATION, 0, 1, 0, 0);
input_set_abs_params(input, ABS_MT_PRESSURE, 0, 0xff, 0, 0);
input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 0x0f, 0, 0);
input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 0x0f, 0, 0);
input_set_abs_params(input, ABS_MT_ORIENTATION, 0, 1, 0, 0);
input_set_abs_params(input, ABS_MT_TOOL_TYPE,
0, MT_TOOL_MAX, 0, 0);
if (sensor->sensor_type == rmi_sensor_touchpad)
input_flags = INPUT_MT_POINTER;

2
drivers/input/rmi4/rmi_2d_sensor.h
View File

@@ -67,6 +67,8 @@ struct rmi_2d_sensor {
u8 report_rel;
u8 x_mm;
u8 y_mm;
enum rmi_reg_state dribble;
enum rmi_reg_state palm_detect;
};
int rmi_2d_sensor_of_probe(struct device *dev,

12
drivers/input/rmi4/rmi_bus.c
View File

@@ -230,6 +230,9 @@ err_put_device:
void rmi_unregister_function(struct rmi_function *fn)
{
rmi_dbg(RMI_DEBUG_CORE, &fn->dev, "Unregistering F%02X.\n",
fn->fd.function_number);
device_del(&fn->dev);
of_node_put(fn->dev.of_node);
put_device(&fn->dev);
@@ -302,6 +305,9 @@ struct bus_type rmi_bus_type = {
static struct rmi_function_handler *fn_handlers[] = {
&rmi_f01_handler,
#ifdef CONFIG_RMI4_F03
&rmi_f03_handler,
#endif
#ifdef CONFIG_RMI4_F11
&rmi_f11_handler,
#endif
@@ -311,9 +317,15 @@ static struct rmi_function_handler *fn_handlers[] = {
#ifdef CONFIG_RMI4_F30
&rmi_f30_handler,
#endif
#ifdef CONFIG_RMI4_F34
&rmi_f34_handler,
#endif
#ifdef CONFIG_RMI4_F54
&rmi_f54_handler,
#endif
#ifdef CONFIG_RMI4_F55
&rmi_f55_handler,
#endif
};
static void __rmi_unregister_function_handlers(int start_idx)

12
drivers/input/rmi4/rmi_bus.h
View File

@@ -104,6 +104,18 @@ rmi_get_platform_data(struct rmi_device *d)
bool rmi_is_physical_device(struct device *dev);
/**
* rmi_reset - reset a RMI4 device
* @d: Pointer to an RMI device
*
* Calls for a reset of each function implemented by a specific device.
* Returns 0 on success or a negative error code.
*/
static inline int rmi_reset(struct rmi_device *d)
{
return d->driver->reset_handler(d);
}
/**
* rmi_read - read a single byte
* @d: Pointer to an RMI device

420
drivers/input/rmi4/rmi_driver.c
View File

@@ -17,6 +17,7 @@
#include <linux/bitmap.h>
#include <linux/delay.h>
#include <linux/fs.h>
#include <linux/irq.h>
#include <linux/pm.h>
#include <linux/slab.h>
#include <linux/of.h>
@@ -33,12 +34,22 @@
#define RMI_DEVICE_RESET_CMD 0x01
#define DEFAULT_RESET_DELAY_MS 100
static void rmi_free_function_list(struct rmi_device *rmi_dev)
void rmi_free_function_list(struct rmi_device *rmi_dev)
{
struct rmi_function *fn, *tmp;
struct rmi_driver_data *data = dev_get_drvdata(&rmi_dev->dev);
rmi_dbg(RMI_DEBUG_CORE, &rmi_dev->dev, "Freeing function list\n");
devm_kfree(&rmi_dev->dev, data->irq_memory);
data->irq_memory = NULL;
data->irq_status = NULL;
data->fn_irq_bits = NULL;
data->current_irq_mask = NULL;
data->new_irq_mask = NULL;
data->f01_container = NULL;
data->f34_container = NULL;
/* Doing it in the reverse order so F01 will be removed last */
list_for_each_entry_safe_reverse(fn, tmp,
@@ -133,7 +144,7 @@ static void process_one_interrupt(struct rmi_driver_data *data,
}
}
int rmi_process_interrupt_requests(struct rmi_device *rmi_dev)
static int rmi_process_interrupt_requests(struct rmi_device *rmi_dev)
{
struct rmi_driver_data *data = dev_get_drvdata(&rmi_dev->dev);
struct device *dev = &rmi_dev->dev;
@@ -143,7 +154,7 @@ int rmi_process_interrupt_requests(struct rmi_device *rmi_dev)
if (!data)
return 0;
if (!rmi_dev->xport->attn_data) {
if (!data->attn_data.data) {
error = rmi_read_block(rmi_dev,
data->f01_container->fd.data_base_addr + 1,
data->irq_status, data->num_of_irq_regs);
@@ -178,7 +189,81 @@ int rmi_process_interrupt_requests(struct rmi_device *rmi_dev)
return 0;
}
EXPORT_SYMBOL_GPL(rmi_process_interrupt_requests);
void rmi_set_attn_data(struct rmi_device *rmi_dev, unsigned long irq_status,
void *data, size_t size)
{
struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
struct rmi4_attn_data attn_data;
void *fifo_data;
if (!drvdata->enabled)
return;
fifo_data = kmemdup(data, size, GFP_ATOMIC);
if (!fifo_data)
return;
attn_data.irq_status = irq_status;
attn_data.size = size;
attn_data.data = fifo_data;
kfifo_put(&drvdata->attn_fifo, attn_data);
}
EXPORT_SYMBOL_GPL(rmi_set_attn_data);
static irqreturn_t rmi_irq_fn(int irq, void *dev_id)
{
struct rmi_device *rmi_dev = dev_id;
struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
struct rmi4_attn_data attn_data = {0};
int ret, count;
count = kfifo_get(&drvdata->attn_fifo, &attn_data);
if (count) {
*(drvdata->irq_status) = attn_data.irq_status;
drvdata->attn_data = attn_data;
}
ret = rmi_process_interrupt_requests(rmi_dev);
if (ret)
rmi_dbg(RMI_DEBUG_CORE, &rmi_dev->dev,
"Failed to process interrupt request: %d\n", ret);
if (count)
kfree(attn_data.data);
if (!kfifo_is_empty(&drvdata->attn_fifo))
return rmi_irq_fn(irq, dev_id);
return IRQ_HANDLED;
}
static int rmi_irq_init(struct rmi_device *rmi_dev)
{
struct rmi_device_platform_data *pdata = rmi_get_platform_data(rmi_dev);
struct rmi_driver_data *data = dev_get_drvdata(&rmi_dev->dev);
int irq_flags = irq_get_trigger_type(pdata->irq);
int ret;
if (!irq_flags)
irq_flags = IRQF_TRIGGER_LOW;
ret = devm_request_threaded_irq(&rmi_dev->dev, pdata->irq, NULL,
rmi_irq_fn, irq_flags | IRQF_ONESHOT,
dev_name(rmi_dev->xport->dev),
rmi_dev);
if (ret < 0) {
dev_err(&rmi_dev->dev, "Failed to register interrupt %d\n",
pdata->irq);
return ret;
}
data->enabled = true;
return 0;
}
static int suspend_one_function(struct rmi_function *fn)
{
@@ -248,7 +333,7 @@ static int rmi_resume_functions(struct rmi_device *rmi_dev)
return 0;
}
static int enable_sensor(struct rmi_device *rmi_dev)
int rmi_enable_sensor(struct rmi_device *rmi_dev)
{
int retval = 0;
@@ -379,8 +464,8 @@ static int rmi_driver_reset_handler(struct rmi_device *rmi_dev)
return 0;
}
int rmi_read_pdt_entry(struct rmi_device *rmi_dev, struct pdt_entry *entry,
u16 pdt_address)
static int rmi_read_pdt_entry(struct rmi_device *rmi_dev,
struct pdt_entry *entry, u16 pdt_address)
{
u8 buf[RMI_PDT_ENTRY_SIZE];
int error;
@@ -403,7 +488,6 @@ int rmi_read_pdt_entry(struct rmi_device *rmi_dev, struct pdt_entry *entry,
return 0;
}
EXPORT_SYMBOL_GPL(rmi_read_pdt_entry);
static void rmi_driver_copy_pdt_to_fd(const struct pdt_entry *pdt,
struct rmi_function_descriptor *fd)
@@ -422,6 +506,7 @@ static void rmi_driver_copy_pdt_to_fd(const struct pdt_entry *pdt,
static int rmi_scan_pdt_page(struct rmi_device *rmi_dev,
int page,
int *empty_pages,
void *ctx,
int (*callback)(struct rmi_device *rmi_dev,
void *ctx,
@@ -449,20 +534,30 @@ static int rmi_scan_pdt_page(struct rmi_device *rmi_dev,
return retval;
}
return (data->f01_bootloader_mode || addr == pdt_start) ?
/*
* Count number of empty PDT pages. If a gap of two pages
* or more is found, stop scanning.
*/
if (addr == pdt_start)
++*empty_pages;
else
*empty_pages = 0;
return (data->bootloader_mode || *empty_pages >= 2) ?
RMI_SCAN_DONE : RMI_SCAN_CONTINUE;
}
static int rmi_scan_pdt(struct rmi_device *rmi_dev, void *ctx,
int (*callback)(struct rmi_device *rmi_dev,
void *ctx,
const struct pdt_entry *entry))
int rmi_scan_pdt(struct rmi_device *rmi_dev, void *ctx,
int (*callback)(struct rmi_device *rmi_dev,
void *ctx, const struct pdt_entry *entry))
{
int page;
int empty_pages = 0;
int retval = RMI_SCAN_DONE;
for (page = 0; page <= RMI4_MAX_PAGE; page++) {
retval = rmi_scan_pdt_page(rmi_dev, page, ctx, callback);
retval = rmi_scan_pdt_page(rmi_dev, page, &empty_pages,
ctx, callback);
if (retval != RMI_SCAN_CONTINUE)
break;
}
@@ -600,7 +695,6 @@ free_struct_buff:
kfree(struct_buf);
return ret;
}
EXPORT_SYMBOL_GPL(rmi_read_register_desc);
const struct rmi_register_desc_item *rmi_get_register_desc_item(
struct rmi_register_descriptor *rdesc, u16 reg)
@@ -616,7 +710,6 @@ const struct rmi_register_desc_item *rmi_get_register_desc_item(
return NULL;
}
EXPORT_SYMBOL_GPL(rmi_get_register_desc_item);
size_t rmi_register_desc_calc_size(struct rmi_register_descriptor *rdesc)
{
@@ -630,7 +723,6 @@ size_t rmi_register_desc_calc_size(struct rmi_register_descriptor *rdesc)
}
return size;
}
EXPORT_SYMBOL_GPL(rmi_register_desc_calc_size);
/* Compute the register offset relative to the base address */
int rmi_register_desc_calc_reg_offset(
@@ -648,7 +740,6 @@ int rmi_register_desc_calc_reg_offset(
}
return -1;
}
EXPORT_SYMBOL_GPL(rmi_register_desc_calc_reg_offset);
bool rmi_register_desc_has_subpacket(const struct rmi_register_desc_item *item,
u8 subpacket)
@@ -657,51 +748,55 @@ bool rmi_register_desc_has_subpacket(const struct rmi_register_desc_item *item,
subpacket) == subpacket;
}
/* Indicates that flash programming is enabled (bootloader mode). */
#define RMI_F01_STATUS_BOOTLOADER(status) (!!((status) & 0x40))
/*
* Given the PDT entry for F01, read the device status register to determine
* if we're stuck in bootloader mode or not.
*
*/
static int rmi_check_bootloader_mode(struct rmi_device *rmi_dev,
const struct pdt_entry *pdt)
{
int error;
u8 device_status;
struct rmi_driver_data *data = dev_get_drvdata(&rmi_dev->dev);
int ret;
u8 status;
error = rmi_read(rmi_dev, pdt->data_base_addr + pdt->page_start,
&device_status);
if (error) {
dev_err(&rmi_dev->dev,
"Failed to read device status: %d.\n", error);
return error;
if (pdt->function_number == 0x34 && pdt->function_version > 1) {
ret = rmi_read(rmi_dev, pdt->data_base_addr, &status);
if (ret) {
dev_err(&rmi_dev->dev,
"Failed to read F34 status: %d.\n", ret);
return ret;
}
if (status & BIT(7))
data->bootloader_mode = true;
} else if (pdt->function_number == 0x01) {
ret = rmi_read(rmi_dev, pdt->data_base_addr, &status);
if (ret) {
dev_err(&rmi_dev->dev,
"Failed to read F01 status: %d.\n", ret);
return ret;
}
if (status & BIT(6))
data->bootloader_mode = true;
}
return RMI_F01_STATUS_BOOTLOADER(device_status);
return 0;
}
static int rmi_count_irqs(struct rmi_device *rmi_dev,
void *ctx, const struct pdt_entry *pdt)
{
struct rmi_driver_data *data = dev_get_drvdata(&rmi_dev->dev);
int *irq_count = ctx;
int ret;
*irq_count += pdt->interrupt_source_count;
if (pdt->function_number == 0x01) {
data->f01_bootloader_mode =
rmi_check_bootloader_mode(rmi_dev, pdt);
if (data->f01_bootloader_mode)
dev_warn(&rmi_dev->dev,
"WARNING: RMI4 device is in bootloader mode!\n");
}
ret = rmi_check_bootloader_mode(rmi_dev, pdt);
if (ret < 0)
return ret;
return RMI_SCAN_CONTINUE;
}
static int rmi_initial_reset(struct rmi_device *rmi_dev,
void *ctx, const struct pdt_entry *pdt)
int rmi_initial_reset(struct rmi_device *rmi_dev, void *ctx,
const struct pdt_entry *pdt)
{
int error;
@@ -720,6 +815,7 @@ static int rmi_initial_reset(struct rmi_device *rmi_dev,
return RMI_SCAN_DONE;
}
rmi_dbg(RMI_DEBUG_CORE, &rmi_dev->dev, "Sending reset\n");
error = rmi_write_block(rmi_dev, cmd_addr, &cmd_buf, 1);
if (error) {
dev_err(&rmi_dev->dev,
@@ -776,6 +872,8 @@ static int rmi_create_function(struct rmi_device *rmi_dev,
if (pdt->function_number == 0x01)
data->f01_container = fn;
else if (pdt->function_number == 0x34)
data->f34_container = fn;
list_add_tail(&fn->node, &data->function_list);
@@ -786,23 +884,95 @@ err_put_fn:
return error;
}
int rmi_driver_suspend(struct rmi_device *rmi_dev)
void rmi_enable_irq(struct rmi_device *rmi_dev, bool clear_wake)
{
int retval = 0;
struct rmi_device_platform_data *pdata = rmi_get_platform_data(rmi_dev);
struct rmi_driver_data *data = dev_get_drvdata(&rmi_dev->dev);
int irq = pdata->irq;
int irq_flags;
int retval;
mutex_lock(&data->enabled_mutex);
if (data->enabled)
goto out;
enable_irq(irq);
data->enabled = true;
if (clear_wake && device_may_wakeup(rmi_dev->xport->dev)) {
retval = disable_irq_wake(irq);
if (!retval)
dev_warn(&rmi_dev->dev,
"Failed to disable irq for wake: %d\n",
retval);
}
/*
* Call rmi_process_interrupt_requests() after enabling irq,
* otherwise we may lose interrupt on edge-triggered systems.
*/
irq_flags = irq_get_trigger_type(pdata->irq);
if (irq_flags & IRQ_TYPE_EDGE_BOTH)
rmi_process_interrupt_requests(rmi_dev);
out:
mutex_unlock(&data->enabled_mutex);
}
void rmi_disable_irq(struct rmi_device *rmi_dev, bool enable_wake)
{
struct rmi_device_platform_data *pdata = rmi_get_platform_data(rmi_dev);
struct rmi_driver_data *data = dev_get_drvdata(&rmi_dev->dev);
struct rmi4_attn_data attn_data = {0};
int irq = pdata->irq;
int retval, count;
mutex_lock(&data->enabled_mutex);
if (!data->enabled)
goto out;
data->enabled = false;
disable_irq(irq);
if (enable_wake && device_may_wakeup(rmi_dev->xport->dev)) {
retval = enable_irq_wake(irq);
if (!retval)
dev_warn(&rmi_dev->dev,
"Failed to enable irq for wake: %d\n",
retval);
}
/* make sure the fifo is clean */
while (!kfifo_is_empty(&data->attn_fifo)) {
count = kfifo_get(&data->attn_fifo, &attn_data);
if (count)
kfree(attn_data.data);
}
out:
mutex_unlock(&data->enabled_mutex);
}
int rmi_driver_suspend(struct rmi_device *rmi_dev, bool enable_wake)
{
int retval;
retval = rmi_suspend_functions(rmi_dev);
if (retval)
dev_warn(&rmi_dev->dev, "Failed to suspend functions: %d\n",
retval);
rmi_disable_irq(rmi_dev, enable_wake);
return retval;
}
EXPORT_SYMBOL_GPL(rmi_driver_suspend);
int rmi_driver_resume(struct rmi_device *rmi_dev)
int rmi_driver_resume(struct rmi_device *rmi_dev, bool clear_wake)
{
int retval;
rmi_enable_irq(rmi_dev, clear_wake);
retval = rmi_resume_functions(rmi_dev);
if (retval)
dev_warn(&rmi_dev->dev, "Failed to suspend functions: %d\n",
@@ -816,6 +986,9 @@ static int rmi_driver_remove(struct device *dev)
{
struct rmi_device *rmi_dev = to_rmi_device(dev);
rmi_disable_irq(rmi_dev, false);
rmi_f34_remove_sysfs(rmi_dev);
rmi_free_function_list(rmi_dev);
return 0;
@@ -842,15 +1015,95 @@ static inline int rmi_driver_of_probe(struct device *dev,
}
#endif
int rmi_probe_interrupts(struct rmi_driver_data *data)
{
struct rmi_device *rmi_dev = data->rmi_dev;
struct device *dev = &rmi_dev->dev;
int irq_count;
size_t size;
int retval;
/*
* We need to count the IRQs and allocate their storage before scanning
* the PDT and creating the function entries, because adding a new
* function can trigger events that result in the IRQ related storage
* being accessed.
*/
rmi_dbg(RMI_DEBUG_CORE, dev, "%s: Counting IRQs.\n", __func__);
irq_count = 0;
data->bootloader_mode = false;
retval = rmi_scan_pdt(rmi_dev, &irq_count, rmi_count_irqs);
if (retval < 0) {
dev_err(dev, "IRQ counting failed with code %d.\n", retval);
return retval;
}
if (data->bootloader_mode)
dev_warn(&rmi_dev->dev, "Device in bootloader mode.\n");
data->irq_count = irq_count;
data->num_of_irq_regs = (data->irq_count + 7) / 8;
size = BITS_TO_LONGS(data->irq_count) * sizeof(unsigned long);
data->irq_memory = devm_kzalloc(dev, size * 4, GFP_KERNEL);
if (!data->irq_memory) {
dev_err(dev, "Failed to allocate memory for irq masks.\n");
return retval;
}
data->irq_status = data->irq_memory + size * 0;
data->fn_irq_bits = data->irq_memory + size * 1;
data->current_irq_mask = data->irq_memory + size * 2;
data->new_irq_mask = data->irq_memory + size * 3;
return retval;
}
int rmi_init_functions(struct rmi_driver_data *data)
{
struct rmi_device *rmi_dev = data->rmi_dev;
struct device *dev = &rmi_dev->dev;
int irq_count;
int retval;
irq_count = 0;
rmi_dbg(RMI_DEBUG_CORE, dev, "%s: Creating functions.\n", __func__);
retval = rmi_scan_pdt(rmi_dev, &irq_count, rmi_create_function);
if (retval < 0) {
dev_err(dev, "Function creation failed with code %d.\n",
retval);
goto err_destroy_functions;
}
if (!data->f01_container) {
dev_err(dev, "Missing F01 container!\n");
retval = -EINVAL;
goto err_destroy_functions;
}
retval = rmi_read_block(rmi_dev,
data->f01_container->fd.control_base_addr + 1,
data->current_irq_mask, data->num_of_irq_regs);
if (retval < 0) {
dev_err(dev, "%s: Failed to read current IRQ mask.\n",
__func__);
goto err_destroy_functions;
}
return 0;
err_destroy_functions:
rmi_free_function_list(rmi_dev);
return retval;
}
static int rmi_driver_probe(struct device *dev)
{
struct rmi_driver *rmi_driver;
struct rmi_driver_data *data;
struct rmi_device_platform_data *pdata;
struct rmi_device *rmi_dev;
size_t size;
void *irq_memory;
int irq_count;
int retval;
rmi_dbg(RMI_DEBUG_CORE, dev, "%s: Starting probe.\n",
@@ -916,35 +1169,12 @@ static int rmi_driver_probe(struct device *dev)
PDT_PROPERTIES_LOCATION, retval);
}
/*
* We need to count the IRQs and allocate their storage before scanning
* the PDT and creating the function entries, because adding a new
* function can trigger events that result in the IRQ related storage
* being accessed.
*/
rmi_dbg(RMI_DEBUG_CORE, dev, "Counting IRQs.\n");
irq_count = 0;
retval = rmi_scan_pdt(rmi_dev, &irq_count, rmi_count_irqs);
if (retval < 0) {
dev_err(dev, "IRQ counting failed with code %d.\n", retval);
goto err;
}
data->irq_count = irq_count;
data->num_of_irq_regs = (data->irq_count + 7) / 8;
mutex_init(&data->irq_mutex);
mutex_init(&data->enabled_mutex);
size = BITS_TO_LONGS(data->irq_count) * sizeof(unsigned long);
irq_memory = devm_kzalloc(dev, size * 4, GFP_KERNEL);
if (!irq_memory) {
dev_err(dev, "Failed to allocate memory for irq masks.\n");
retval = rmi_probe_interrupts(data);
if (retval)
goto err;
}
data->irq_status = irq_memory + size * 0;
data->fn_irq_bits = irq_memory + size * 1;
data->current_irq_mask = irq_memory + size * 2;
data->new_irq_mask = irq_memory + size * 3;
if (rmi_dev->xport->input) {
/*
@@ -961,36 +1191,20 @@ static int rmi_driver_probe(struct device *dev)
dev_err(dev, "%s: Failed to allocate input device.\n",
__func__);
retval = -ENOMEM;
goto err_destroy_functions;
goto err;
}
rmi_driver_set_input_params(rmi_dev, data->input);
data->input->phys = devm_kasprintf(dev, GFP_KERNEL,
"%s/input0", dev_name(dev));
}
irq_count = 0;
rmi_dbg(RMI_DEBUG_CORE, dev, "Creating functions.");
retval = rmi_scan_pdt(rmi_dev, &irq_count, rmi_create_function);
if (retval < 0) {
dev_err(dev, "Function creation failed with code %d.\n",
retval);
goto err_destroy_functions;
}
retval = rmi_init_functions(data);
if (retval)
goto err;
if (!data->f01_container) {
dev_err(dev, "Missing F01 container!\n");
retval = -EINVAL;
goto err_destroy_functions;
}
retval = rmi_read_block(rmi_dev,
data->f01_container->fd.control_base_addr + 1,
data->current_irq_mask, data->num_of_irq_regs);
if (retval < 0) {
dev_err(dev, "%s: Failed to read current IRQ mask.\n",
__func__);
goto err_destroy_functions;
}
retval = rmi_f34_create_sysfs(rmi_dev);
if (retval)
goto err;
if (data->input) {
rmi_driver_set_input_name(rmi_dev, data->input);
@@ -1003,9 +1217,13 @@ static int rmi_driver_probe(struct device *dev)
}
}
retval = rmi_irq_init(rmi_dev);
if (retval < 0)
goto err_destroy_functions;
if (data->f01_container->dev.driver)
/* Driver already bound, so enable ATTN now. */
return enable_sensor(rmi_dev);
return rmi_enable_sensor(rmi_dev);
return 0;

31
drivers/input/rmi4/rmi_driver.h
View File

@@ -51,9 +51,6 @@ struct pdt_entry {
u8 function_number;
};
int rmi_read_pdt_entry(struct rmi_device *rmi_dev, struct pdt_entry *entry,
u16 pdt_address);
#define RMI_REG_DESC_PRESENSE_BITS (32 * BITS_PER_BYTE)
#define RMI_REG_DESC_SUBPACKET_BITS (37 * BITS_PER_BYTE)
@@ -95,12 +92,40 @@ bool rmi_register_desc_has_subpacket(const struct rmi_register_desc_item *item,
bool rmi_is_physical_driver(struct device_driver *);
int rmi_register_physical_driver(void);
void rmi_unregister_physical_driver(void);
void rmi_free_function_list(struct rmi_device *rmi_dev);
int rmi_enable_sensor(struct rmi_device *rmi_dev);
int rmi_scan_pdt(struct rmi_device *rmi_dev, void *ctx,
int (*callback)(struct rmi_device *rmi_dev, void *ctx,
const struct pdt_entry *entry));
int rmi_probe_interrupts(struct rmi_driver_data *data);
void rmi_enable_irq(struct rmi_device *rmi_dev, bool clear_wake);
void rmi_disable_irq(struct rmi_device *rmi_dev, bool enable_wake);
int rmi_init_functions(struct rmi_driver_data *data);
int rmi_initial_reset(struct rmi_device *rmi_dev, void *ctx,
const struct pdt_entry *pdt);
char *rmi_f01_get_product_ID(struct rmi_function *fn);
#ifdef CONFIG_RMI4_F34
int rmi_f34_create_sysfs(struct rmi_device *rmi_dev);
void rmi_f34_remove_sysfs(struct rmi_device *rmi_dev);
#else
static inline int rmi_f34_create_sysfs(struct rmi_device *rmi_dev)
{
return 0;
}
static inline void rmi_f34_remove_sysfs(struct rmi_device *rmi_dev)
{
}
#endif /* CONFIG_RMI_F34 */
extern struct rmi_function_handler rmi_f01_handler;
extern struct rmi_function_handler rmi_f03_handler;
extern struct rmi_function_handler rmi_f11_handler;
extern struct rmi_function_handler rmi_f12_handler;
extern struct rmi_function_handler rmi_f30_handler;
extern struct rmi_function_handler rmi_f34_handler;
extern struct rmi_function_handler rmi_f54_handler;
extern struct rmi_function_handler rmi_f55_handler;
#endif

12
drivers/input/rmi4/rmi_f01.c
View File

@@ -62,6 +62,8 @@ struct f01_basic_properties {
#define RMI_F01_STATUS_CODE(status) ((status) & 0x0f)
/* The device has lost its configuration for some reason. */
#define RMI_F01_STATUS_UNCONFIGURED(status) (!!((status) & 0x80))
/* The device is in bootloader mode */
#define RMI_F01_STATUS_BOOTLOADER(status) ((status) & 0x40)
/* Control register bits */
@@ -326,12 +328,12 @@ static int rmi_f01_probe(struct rmi_function *fn)
}
switch (pdata->power_management.nosleep) {
case RMI_F01_NOSLEEP_DEFAULT:
case RMI_REG_STATE_DEFAULT:
break;
case RMI_F01_NOSLEEP_OFF:
case RMI_REG_STATE_OFF:
f01->device_control.ctrl0 &= ~RMI_F01_CTRL0_NOSLEEP_BIT;
break;
case RMI_F01_NOSLEEP_ON:
case RMI_REG_STATE_ON:
f01->device_control.ctrl0 |= RMI_F01_CTRL0_NOSLEEP_BIT;
break;
}
@@ -593,6 +595,10 @@ static int rmi_f01_attention(struct rmi_function *fn,
return error;
}
if (RMI_F01_STATUS_BOOTLOADER(device_status))
dev_warn(&fn->dev,
"Device in bootloader mode, please update firmware\n");
if (RMI_F01_STATUS_UNCONFIGURED(device_status)) {
dev_warn(&fn->dev, "Device reset detected.\n");
error = rmi_dev->driver->reset_handler(rmi_dev);

250
drivers/input/rmi4/rmi_f03.c Normal file
View File

@@ -0,0 +1,250 @@
/*
* Copyright (C) 2015-2016 Red Hat
* Copyright (C) 2015 Lyude Paul <thatslyude@gmail.com>
*
* 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.
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/serio.h>
#include <linux/notifier.h>
#include "rmi_driver.h"
#define RMI_F03_RX_DATA_OFB 0x01
#define RMI_F03_OB_SIZE 2
#define RMI_F03_OB_OFFSET 2
#define RMI_F03_OB_DATA_OFFSET 1
#define RMI_F03_OB_FLAG_TIMEOUT BIT(6)
#define RMI_F03_OB_FLAG_PARITY BIT(7)
#define RMI_F03_DEVICE_COUNT 0x07
#define RMI_F03_BYTES_PER_DEVICE 0x07
#define RMI_F03_BYTES_PER_DEVICE_SHIFT 4
#define RMI_F03_QUEUE_LENGTH 0x0F
struct f03_data {
struct rmi_function *fn;
struct serio *serio;
u8 device_count;
u8 rx_queue_length;
};
static int rmi_f03_pt_write(struct serio *id, unsigned char val)
{
struct f03_data *f03 = id->port_data;
int error;
rmi_dbg(RMI_DEBUG_FN, &f03->fn->dev,
"%s: Wrote %.2hhx to PS/2 passthrough address",
__func__, val);
error = rmi_write(f03->fn->rmi_dev, f03->fn->fd.data_base_addr, val);
if (error) {
dev_err(&f03->fn->dev,
"%s: Failed to write to F03 TX register (%d).\n",
__func__, error);
return error;
}
return 0;
}
static int rmi_f03_initialize(struct f03_data *f03)
{
struct rmi_function *fn = f03->fn;
struct device *dev = &fn->dev;
int error;
u8 bytes_per_device;
u8 query1;
u8 query2[RMI_F03_DEVICE_COUNT * RMI_F03_BYTES_PER_DEVICE];
size_t query2_len;
error = rmi_read(fn->rmi_dev, fn->fd.query_base_addr, &query1);
if (error) {
dev_err(dev, "Failed to read query register (%d).\n", error);
return error;
}
f03->device_count = query1 & RMI_F03_DEVICE_COUNT;
bytes_per_device = (query1 >> RMI_F03_BYTES_PER_DEVICE_SHIFT) &
RMI_F03_BYTES_PER_DEVICE;
query2_len = f03->device_count * bytes_per_device;
/*
* The first generation of image sensors don't have a second part to
* their f03 query, as such we have to set some of these values manually
*/
if (query2_len < 1) {
f03->device_count = 1;
f03->rx_queue_length = 7;
} else {
error = rmi_read_block(fn->rmi_dev, fn->fd.query_base_addr + 1,
query2, query2_len);
if (error) {
dev_err(dev,
"Failed to read second set of query registers (%d).\n",
error);
return error;
}
f03->rx_queue_length = query2[0] & RMI_F03_QUEUE_LENGTH;
}
return 0;
}
static int rmi_f03_register_pt(struct f03_data *f03)
{
struct serio *serio;
serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
if (!serio)
return -ENOMEM;
serio->id.type = SERIO_8042;
serio->write = rmi_f03_pt_write;
serio->port_data = f03;
strlcpy(serio->name, "Synaptics RMI4 PS/2 pass-through",
sizeof(serio->name));
strlcpy(serio->phys, "synaptics-rmi4-pt/serio1",
sizeof(serio->phys));
serio->dev.parent = &f03->fn->dev;
f03->serio = serio;
serio_register_port(serio);
return 0;
}
static int rmi_f03_probe(struct rmi_function *fn)
{
struct device *dev = &fn->dev;
struct f03_data *f03;
int error;
f03 = devm_kzalloc(dev, sizeof(struct f03_data), GFP_KERNEL);
if (!f03)
return -ENOMEM;
f03->fn = fn;
error = rmi_f03_initialize(f03);
if (error < 0)
return error;
if (f03->device_count != 1)
dev_warn(dev, "found %d devices on PS/2 passthrough",
f03->device_count);
dev_set_drvdata(dev, f03);
error = rmi_f03_register_pt(f03);
if (error)
return error;
return 0;
}
static int rmi_f03_config(struct rmi_function *fn)
{
fn->rmi_dev->driver->set_irq_bits(fn->rmi_dev, fn->irq_mask);
return 0;
}
static int rmi_f03_attention(struct rmi_function *fn, unsigned long *irq_bits)
{
struct rmi_device *rmi_dev = fn->rmi_dev;
struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
struct f03_data *f03 = dev_get_drvdata(&fn->dev);
u16 data_addr = fn->fd.data_base_addr;
const u8 ob_len = f03->rx_queue_length * RMI_F03_OB_SIZE;
u8 obs[RMI_F03_QUEUE_LENGTH * RMI_F03_OB_SIZE];
u8 ob_status;
u8 ob_data;
unsigned int serio_flags;
int i;
int error;
if (!rmi_dev)
return -ENODEV;
if (drvdata->attn_data.data) {
/* First grab the data passed by the transport device */
if (drvdata->attn_data.size < ob_len) {
dev_warn(&fn->dev, "F03 interrupted, but data is missing!\n");
return 0;
}
memcpy(obs, drvdata->attn_data.data, ob_len);
drvdata->attn_data.data += ob_len;
drvdata->attn_data.size -= ob_len;
} else {
/* Grab all of the data registers, and check them for data */
error = rmi_read_block(fn->rmi_dev, data_addr + RMI_F03_OB_OFFSET,
&obs, ob_len);
if (error) {
dev_err(&fn->dev,
"%s: Failed to read F03 output buffers: %d\n",
__func__, error);
serio_interrupt(f03->serio, 0, SERIO_TIMEOUT);
return error;
}
}
for (i = 0; i < ob_len; i += RMI_F03_OB_SIZE) {
ob_status = obs[i];
ob_data = obs[i + RMI_F03_OB_DATA_OFFSET];
serio_flags = 0;
if (!(ob_status & RMI_F03_RX_DATA_OFB))
continue;
if (ob_status & RMI_F03_OB_FLAG_TIMEOUT)
serio_flags |= SERIO_TIMEOUT;
if (ob_status & RMI_F03_OB_FLAG_PARITY)
serio_flags |= SERIO_PARITY;
rmi_dbg(RMI_DEBUG_FN, &fn->dev,
"%s: Received %.2hhx from PS2 guest T: %c P: %c\n",
__func__, ob_data,
serio_flags & SERIO_TIMEOUT ? 'Y' : 'N',
serio_flags & SERIO_PARITY ? 'Y' : 'N');
serio_interrupt(f03->serio, ob_data, serio_flags);
}
return 0;
}
static void rmi_f03_remove(struct rmi_function *fn)
{
struct f03_data *f03 = dev_get_drvdata(&fn->dev);
serio_unregister_port(f03->serio);
}
struct rmi_function_handler rmi_f03_handler = {
.driver = {
.name = "rmi4_f03",
},
.func = 0x03,
.probe = rmi_f03_probe,
.config = rmi_f03_config,
.attention = rmi_f03_attention,
.remove = rmi_f03_remove,
};
MODULE_AUTHOR("Lyude Paul <thatslyude@gmail.com>");
MODULE_DESCRIPTION("RMI F03 module");
MODULE_LICENSE("GPL");

98
drivers/input/rmi4/rmi_f11.c
View File

@@ -571,31 +571,48 @@ static inline u8 rmi_f11_parse_finger_state(const u8 *f_state, u8 n_finger)
static void rmi_f11_finger_handler(struct f11_data *f11,
struct rmi_2d_sensor *sensor,
unsigned long *irq_bits, int num_irq_regs)
unsigned long *irq_bits, int num_irq_regs,
int size)
{
const u8 *f_state = f11->data.f_state;
u8 finger_state;
u8 i;
int abs_fingers;
int rel_fingers;
int abs_size = sensor->nbr_fingers * RMI_F11_ABS_BYTES;
int abs_bits = bitmap_and(f11->result_bits, irq_bits, f11->abs_mask,
num_irq_regs * 8);
int rel_bits = bitmap_and(f11->result_bits, irq_bits, f11->rel_mask,
num_irq_regs * 8);
for (i = 0; i < sensor->nbr_fingers; i++) {
/* Possible of having 4 fingers per f_statet register */
finger_state = rmi_f11_parse_finger_state(f_state, i);
if (finger_state == F11_RESERVED) {
pr_err("Invalid finger state[%d]: 0x%02x", i,
finger_state);
continue;
}
if (abs_bits) {
if (abs_size > size)
abs_fingers = size / RMI_F11_ABS_BYTES;
else
abs_fingers = sensor->nbr_fingers;
for (i = 0; i < abs_fingers; i++) {
/* Possible of having 4 fingers per f_state register */
finger_state = rmi_f11_parse_finger_state(f_state, i);
if (finger_state == F11_RESERVED) {
pr_err("Invalid finger state[%d]: 0x%02x", i,
finger_state);
continue;
}
if (abs_bits)
rmi_f11_abs_pos_process(f11, sensor, &sensor->objs[i],
finger_state, i);
}
}
if (rel_bits)
if (rel_bits) {
if ((abs_size + sensor->nbr_fingers * RMI_F11_REL_BYTES) > size)
rel_fingers = (size - abs_size) / RMI_F11_REL_BYTES;
else
rel_fingers = sensor->nbr_fingers;
for (i = 0; i < rel_fingers; i++)
rmi_f11_rel_pos_report(f11, i);
}
@@ -611,7 +628,7 @@ static void rmi_f11_finger_handler(struct f11_data *f11,
sensor->nbr_fingers,
sensor->dmax);
for (i = 0; i < sensor->nbr_fingers; i++) {
for (i = 0; i < abs_fingers; i++) {
finger_state = rmi_f11_parse_finger_state(f_state, i);
if (finger_state == F11_RESERVED)
/* no need to send twice the error */
@@ -1062,8 +1079,8 @@ static int rmi_f11_initialize(struct rmi_function *fn)
rc = rmi_2d_sensor_of_probe(&fn->dev, &f11->sensor_pdata);
if (rc)
return rc;
} else if (pdata->sensor_pdata) {
f11->sensor_pdata = *pdata->sensor_pdata;
} else {
f11->sensor_pdata = pdata->sensor_pdata;
}
f11->rezero_wait_ms = f11->sensor_pdata.rezero_wait;
@@ -1124,6 +1141,8 @@ static int rmi_f11_initialize(struct rmi_function *fn)
sensor->topbuttonpad = f11->sensor_pdata.topbuttonpad;
sensor->kernel_tracking = f11->sensor_pdata.kernel_tracking;
sensor->dmax = f11->sensor_pdata.dmax;
sensor->dribble = f11->sensor_pdata.dribble;
sensor->palm_detect = f11->sensor_pdata.palm_detect;
if (f11->sens_query.has_physical_props) {
sensor->x_mm = f11->sens_query.x_sensor_size_mm;
@@ -1191,11 +1210,33 @@ static int rmi_f11_initialize(struct rmi_function *fn)
ctrl->ctrl0_11[RMI_F11_DELTA_Y_THRESHOLD] =
sensor->axis_align.delta_y_threshold;
if (f11->sens_query.has_dribble)
ctrl->ctrl0_11[0] = ctrl->ctrl0_11[0] & ~BIT(6);
if (f11->sens_query.has_dribble) {
switch (sensor->dribble) {
case RMI_REG_STATE_OFF:
ctrl->ctrl0_11[0] &= ~BIT(6);
break;
case RMI_REG_STATE_ON:
ctrl->ctrl0_11[0] |= BIT(6);
break;
case RMI_REG_STATE_DEFAULT:
default:
break;
}
}
if (f11->sens_query.has_palm_det)
ctrl->ctrl0_11[11] = ctrl->ctrl0_11[11] & ~BIT(0);
if (f11->sens_query.has_palm_det) {
switch (sensor->palm_detect) {
case RMI_REG_STATE_OFF:
ctrl->ctrl0_11[11] &= ~BIT(0);
break;
case RMI_REG_STATE_ON:
ctrl->ctrl0_11[11] |= BIT(0);
break;
case RMI_REG_STATE_DEFAULT:
default:
break;
}
}
rc = f11_write_control_regs(fn, &f11->sens_query,
&f11->dev_controls, fn->fd.query_base_addr);
@@ -1241,12 +1282,21 @@ static int rmi_f11_attention(struct rmi_function *fn, unsigned long *irq_bits)
struct f11_data *f11 = dev_get_drvdata(&fn->dev);
u16 data_base_addr = fn->fd.data_base_addr;
int error;
int valid_bytes = f11->sensor.pkt_size;
if (rmi_dev->xport->attn_data) {
memcpy(f11->sensor.data_pkt, rmi_dev->xport->attn_data,
f11->sensor.attn_size);
rmi_dev->xport->attn_data += f11->sensor.attn_size;
rmi_dev->xport->attn_size -= f11->sensor.attn_size;
if (drvdata->attn_data.data) {
/*
* The valid data in the attention report is less then
* expected. Only process the complete fingers.
*/
if (f11->sensor.attn_size > drvdata->attn_data.size)
valid_bytes = drvdata->attn_data.size;
else
valid_bytes = f11->sensor.attn_size;
memcpy(f11->sensor.data_pkt, drvdata->attn_data.data,
valid_bytes);
drvdata->attn_data.data += f11->sensor.attn_size;
drvdata->attn_data.size -= f11->sensor.attn_size;
} else {
error = rmi_read_block(rmi_dev,
data_base_addr, f11->sensor.data_pkt,
@@ -1256,7 +1306,7 @@ static int rmi_f11_attention(struct rmi_function *fn, unsigned long *irq_bits)
}
rmi_f11_finger_handler(f11, &f11->sensor, irq_bits,
drvdata->num_of_irq_regs);
drvdata->num_of_irq_regs, valid_bytes);
return 0;
}

144
drivers/input/rmi4/rmi_f12.c
View File

@@ -26,9 +26,12 @@ enum rmi_f12_object_type {
RMI_F12_OBJECT_SMALL_OBJECT = 0x0D,
};
#define F12_DATA1_BYTES_PER_OBJ 8
struct f12_data {
struct rmi_2d_sensor sensor;
struct rmi_2d_sensor_platform_data sensor_pdata;
bool has_dribble;
u16 data_addr;
@@ -68,10 +71,6 @@ static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
u8 buf[15];
int pitch_x = 0;
int pitch_y = 0;
int clip_x_low = 0;
int clip_x_high = 0;
int clip_y_low = 0;
int clip_y_high = 0;
int rx_receivers = 0;
int tx_receivers = 0;
int sensor_flags = 0;
@@ -124,7 +123,9 @@ static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
}
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "%s: x low: %d x high: %d y low: %d y high: %d\n",
__func__, clip_x_low, clip_x_high, clip_y_low, clip_y_high);
__func__,
sensor->axis_align.clip_x_low, sensor->axis_align.clip_x_high,
sensor->axis_align.clip_y_low, sensor->axis_align.clip_y_high);
if (rmi_register_desc_has_subpacket(item, 3)) {
rx_receivers = buf[offset];
@@ -146,12 +147,16 @@ static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
return 0;
}
static void rmi_f12_process_objects(struct f12_data *f12, u8 *data1)
static void rmi_f12_process_objects(struct f12_data *f12, u8 *data1, int size)
{
int i;
struct rmi_2d_sensor *sensor = &f12->sensor;
int objects = f12->data1->num_subpackets;
for (i = 0; i < f12->data1->num_subpackets; i++) {
if ((f12->data1->num_subpackets * F12_DATA1_BYTES_PER_OBJ) > size)
objects = size / F12_DATA1_BYTES_PER_OBJ;
for (i = 0; i < objects; i++) {
struct rmi_2d_sensor_abs_object *obj = &sensor->objs[i];
obj->type = RMI_2D_OBJECT_NONE;
@@ -182,7 +187,7 @@ static void rmi_f12_process_objects(struct f12_data *f12, u8 *data1)
rmi_2d_sensor_abs_process(sensor, obj, i);
data1 += 8;
data1 += F12_DATA1_BYTES_PER_OBJ;
}
if (sensor->kernel_tracking)
@@ -192,7 +197,7 @@ static void rmi_f12_process_objects(struct f12_data *f12, u8 *data1)
sensor->nbr_fingers,
sensor->dmax);
for (i = 0; i < sensor->nbr_fingers; i++)
for (i = 0; i < objects; i++)
rmi_2d_sensor_abs_report(sensor, &sensor->objs[i], i);
}
@@ -201,14 +206,20 @@ static int rmi_f12_attention(struct rmi_function *fn,
{
int retval;
struct rmi_device *rmi_dev = fn->rmi_dev;
struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
struct f12_data *f12 = dev_get_drvdata(&fn->dev);
struct rmi_2d_sensor *sensor = &f12->sensor;
int valid_bytes = sensor->pkt_size;
if (rmi_dev->xport->attn_data) {
memcpy(sensor->data_pkt, rmi_dev->xport->attn_data,
sensor->attn_size);
rmi_dev->xport->attn_data += sensor->attn_size;
rmi_dev->xport->attn_size -= sensor->attn_size;
if (drvdata->attn_data.data) {
if (sensor->attn_size > drvdata->attn_data.size)
valid_bytes = drvdata->attn_data.size;
else
valid_bytes = sensor->attn_size;
memcpy(sensor->data_pkt, drvdata->attn_data.data,
valid_bytes);
drvdata->attn_data.data += sensor->attn_size;
drvdata->attn_data.size -= sensor->attn_size;
} else {
retval = rmi_read_block(rmi_dev, f12->data_addr,
sensor->data_pkt, sensor->pkt_size);
@@ -221,19 +232,83 @@ static int rmi_f12_attention(struct rmi_function *fn,
if (f12->data1)
rmi_f12_process_objects(f12,
&sensor->data_pkt[f12->data1_offset]);
&sensor->data_pkt[f12->data1_offset], valid_bytes);
input_mt_sync_frame(sensor->input);
return 0;
}
static int rmi_f12_write_control_regs(struct rmi_function *fn)
{
int ret;
const struct rmi_register_desc_item *item;
struct rmi_device *rmi_dev = fn->rmi_dev;
struct f12_data *f12 = dev_get_drvdata(&fn->dev);
int control_size;
char buf[3];
u16 control_offset = 0;
u8 subpacket_offset = 0;
if (f12->has_dribble
&& (f12->sensor.dribble != RMI_REG_STATE_DEFAULT)) {
item = rmi_get_register_desc_item(&f12->control_reg_desc, 20);
if (item) {
control_offset = rmi_register_desc_calc_reg_offset(
&f12->control_reg_desc, 20);
/*
* The byte containing the EnableDribble bit will be
* in either byte 0 or byte 2 of control 20. Depending
* on the existence of subpacket 0. If control 20 is
* larger then 3 bytes, just read the first 3.
*/
control_size = min(item->reg_size, 3UL);
ret = rmi_read_block(rmi_dev, fn->fd.control_base_addr
+ control_offset, buf, control_size);
if (ret)
return ret;
if (rmi_register_desc_has_subpacket(item, 0))
subpacket_offset += 1;
switch (f12->sensor.dribble) {
case RMI_REG_STATE_OFF:
buf[subpacket_offset] &= ~BIT(2);
break;
case RMI_REG_STATE_ON:
buf[subpacket_offset] |= BIT(2);
break;
case RMI_REG_STATE_DEFAULT:
default:
break;
}
ret = rmi_write_block(rmi_dev,
fn->fd.control_base_addr + control_offset,
buf, control_size);
if (ret)
return ret;
}
}
return 0;
}
static int rmi_f12_config(struct rmi_function *fn)
{
struct rmi_driver *drv = fn->rmi_dev->driver;
int ret;
drv->set_irq_bits(fn->rmi_dev, fn->irq_mask);
ret = rmi_f12_write_control_regs(fn);
if (ret)
dev_warn(&fn->dev,
"Failed to write F12 control registers: %d\n", ret);
return 0;
}
@@ -247,7 +322,7 @@ static int rmi_f12_probe(struct rmi_function *fn)
const struct rmi_register_desc_item *item;
struct rmi_2d_sensor *sensor;
struct rmi_device_platform_data *pdata = rmi_get_platform_data(rmi_dev);
struct rmi_transport_dev *xport = rmi_dev->xport;
struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
u16 data_offset = 0;
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "%s\n", __func__);
@@ -260,7 +335,7 @@ static int rmi_f12_probe(struct rmi_function *fn)
}
++query_addr;
if (!(buf & 0x1)) {
if (!(buf & BIT(0))) {
dev_err(&fn->dev,
"Behavior of F12 without register descriptors is undefined.\n");
return -ENODEV;
@@ -270,12 +345,14 @@ static int rmi_f12_probe(struct rmi_function *fn)
if (!f12)
return -ENOMEM;
f12->has_dribble = !!(buf & BIT(3));
if (fn->dev.of_node) {
ret = rmi_2d_sensor_of_probe(&fn->dev, &f12->sensor_pdata);
if (ret)
return ret;
} else if (pdata->sensor_pdata) {
f12->sensor_pdata = *pdata->sensor_pdata;
} else {
f12->sensor_pdata = pdata->sensor_pdata;
}
ret = rmi_read_register_desc(rmi_dev, query_addr,
@@ -318,6 +395,7 @@ static int rmi_f12_probe(struct rmi_function *fn)
sensor->x_mm = f12->sensor_pdata.x_mm;
sensor->y_mm = f12->sensor_pdata.y_mm;
sensor->dribble = f12->sensor_pdata.dribble;
if (sensor->sensor_type == rmi_sensor_default)
sensor->sensor_type =
@@ -343,7 +421,7 @@ static int rmi_f12_probe(struct rmi_function *fn)
* HID attention reports.
*/
item = rmi_get_register_desc_item(&f12->data_reg_desc, 0);
if (item && !xport->attn_data)
if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 1);
@@ -357,15 +435,15 @@ static int rmi_f12_probe(struct rmi_function *fn)
}
item = rmi_get_register_desc_item(&f12->data_reg_desc, 2);
if (item && !xport->attn_data)
if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 3);
if (item && !xport->attn_data)
if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 4);
if (item && !xport->attn_data)
if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 5);
@@ -377,22 +455,22 @@ static int rmi_f12_probe(struct rmi_function *fn)
}
item = rmi_get_register_desc_item(&f12->data_reg_desc, 6);
if (item && !xport->attn_data) {
if (item && !drvdata->attn_data.data) {
f12->data6 = item;
f12->data6_offset = data_offset;
data_offset += item->reg_size;
}
item = rmi_get_register_desc_item(&f12->data_reg_desc, 7);
if (item && !xport->attn_data)
if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 8);
if (item && !xport->attn_data)
if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 9);
if (item && !xport->attn_data) {
if (item && !drvdata->attn_data.data) {
f12->data9 = item;
f12->data9_offset = data_offset;
data_offset += item->reg_size;
@@ -401,27 +479,27 @@ static int rmi_f12_probe(struct rmi_function *fn)
}
item = rmi_get_register_desc_item(&f12->data_reg_desc, 10);
if (item && !xport->attn_data)
if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 11);
if (item && !xport->attn_data)
if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 12);
if (item && !xport->attn_data)
if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 13);
if (item && !xport->attn_data)
if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 14);
if (item && !xport->attn_data)
if (item && !drvdata->attn_data.data)
data_offset += item->reg_size;
item = rmi_get_register_desc_item(&f12->data_reg_desc, 15);
if (item && !xport->attn_data) {
if (item && !drvdata->attn_data.data) {
f12->data15 = item;
f12->data15_offset = data_offset;
data_offset += item->reg_size;

22
drivers/input/rmi4/rmi_f30.c
View File

@@ -99,6 +99,7 @@ static int rmi_f30_attention(struct rmi_function *fn, unsigned long *irq_bits)
{
struct f30_data *f30 = dev_get_drvdata(&fn->dev);
struct rmi_device *rmi_dev = fn->rmi_dev;
struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
int retval;
int gpiled = 0;
int value = 0;
@@ -109,11 +110,15 @@ static int rmi_f30_attention(struct rmi_function *fn, unsigned long *irq_bits)
return 0;
/* Read the gpi led data. */
if (rmi_dev->xport->attn_data) {
memcpy(f30->data_regs, rmi_dev->xport->attn_data,
if (drvdata->attn_data.data) {
if (drvdata->attn_data.size < f30->register_count) {
dev_warn(&fn->dev, "F30 interrupted, but data is missing\n");
return 0;
}
memcpy(f30->data_regs, drvdata->attn_data.data,
f30->register_count);
rmi_dev->xport->attn_data += f30->register_count;
rmi_dev->xport->attn_size -= f30->register_count;
drvdata->attn_data.data += f30->register_count;
drvdata->attn_data.size -= f30->register_count;
} else {
retval = rmi_read_block(rmi_dev, fn->fd.data_base_addr,
f30->data_regs, f30->register_count);
@@ -192,7 +197,7 @@ static int rmi_f30_config(struct rmi_function *fn)
rmi_get_platform_data(fn->rmi_dev);
int error;
if (pdata->f30_data && pdata->f30_data->disable) {
if (pdata->f30_data.disable) {
drv->clear_irq_bits(fn->rmi_dev, fn->irq_mask);
} else {
/* Write Control Register values back to device */
@@ -351,7 +356,7 @@ static inline int rmi_f30_initialize(struct rmi_function *fn)
f30->gpioled_key_map = (u16 *)map_memory;
pdata = rmi_get_platform_data(rmi_dev);
if (pdata && f30->has_gpio) {
if (f30->has_gpio) {
button = BTN_LEFT;
for (i = 0; i < f30->gpioled_count; i++) {
if (rmi_f30_is_valid_button(i, f30->ctrl)) {
@@ -362,8 +367,7 @@ static inline int rmi_f30_initialize(struct rmi_function *fn)
* f30->has_mech_mouse_btns, but I am
* not sure, so use only the pdata info
*/
if (pdata->f30_data &&
pdata->f30_data->buttonpad)
if (pdata->f30_data.buttonpad)
break;
}
}
@@ -378,7 +382,7 @@ static int rmi_f30_probe(struct rmi_function *fn)
const struct rmi_device_platform_data *pdata =
rmi_get_platform_data(fn->rmi_dev);
if (pdata->f30_data && pdata->f30_data->disable)
if (pdata->f30_data.disable)
return 0;
rc = rmi_f30_initialize(fn);

516
drivers/input/rmi4/rmi_f34.c Normal file
View File

@@ -0,0 +1,516 @@
/*
* Copyright (c) 2007-2016, Synaptics Incorporated
* Copyright (C) 2016 Zodiac Inflight Innovations
*
* 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.
*/
#include <linux/kernel.h>
#include <linux/rmi.h>
#include <linux/firmware.h>
#include <asm/unaligned.h>
#include <asm/unaligned.h>
#include <linux/bitops.h>
#include "rmi_driver.h"
#include "rmi_f34.h"
static int rmi_f34_write_bootloader_id(struct f34_data *f34)
{
struct rmi_function *fn = f34->fn;
struct rmi_device *rmi_dev = fn->rmi_dev;
u8 bootloader_id[F34_BOOTLOADER_ID_LEN];
int ret;
ret = rmi_read_block(rmi_dev, fn->fd.query_base_addr,
bootloader_id, sizeof(bootloader_id));
if (ret) {
dev_err(&fn->dev, "%s: Reading bootloader ID failed: %d\n",
__func__, ret);
return ret;
}
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "%s: writing bootloader id '%c%c'\n",
__func__, bootloader_id[0], bootloader_id[1]);
ret = rmi_write_block(rmi_dev,
fn->fd.data_base_addr + F34_BLOCK_DATA_OFFSET,
bootloader_id, sizeof(bootloader_id));
if (ret) {
dev_err(&fn->dev, "Failed to write bootloader ID: %d\n", ret);
return ret;
}
return 0;
}
static int rmi_f34_command(struct f34_data *f34, u8 command,
unsigned int timeout, bool write_bl_id)
{
struct rmi_function *fn = f34->fn;
struct rmi_device *rmi_dev = fn->rmi_dev;
int ret;
if (write_bl_id) {
ret = rmi_f34_write_bootloader_id(f34);
if (ret)
return ret;
}
init_completion(&f34->v5.cmd_done);
ret = rmi_read(rmi_dev, f34->v5.ctrl_address, &f34->v5.status);
if (ret) {
dev_err(&f34->fn->dev,
"%s: Failed to read cmd register: %d (command %#02x)\n",
__func__, ret, command);
return ret;
}
f34->v5.status |= command & 0x0f;
ret = rmi_write(rmi_dev, f34->v5.ctrl_address, f34->v5.status);
if (ret < 0) {
dev_err(&f34->fn->dev,
"Failed to write F34 command %#02x: %d\n",
command, ret);
return ret;
}
if (!wait_for_completion_timeout(&f34->v5.cmd_done,
msecs_to_jiffies(timeout))) {
ret = rmi_read(rmi_dev, f34->v5.ctrl_address, &f34->v5.status);
if (ret) {
dev_err(&f34->fn->dev,
"%s: cmd %#02x timed out: %d\n",
__func__, command, ret);
return ret;
}
if (f34->v5.status & 0x7f) {
dev_err(&f34->fn->dev,
"%s: cmd %#02x timed out, status: %#02x\n",
__func__, command, f34->v5.status);
return -ETIMEDOUT;
}
}
return 0;
}
static int rmi_f34_attention(struct rmi_function *fn, unsigned long *irq_bits)
{
struct f34_data *f34 = dev_get_drvdata(&fn->dev);
int ret;
if (f34->bl_version != 5)
return 0;
ret = rmi_read(f34->fn->rmi_dev, f34->v5.ctrl_address, &f34->v5.status);
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "%s: status: %#02x, ret: %d\n",
__func__, f34->v5.status, ret);
if (!ret && !(f34->v5.status & 0x7f))
complete(&f34->v5.cmd_done);
return 0;
}
static int rmi_f34_write_blocks(struct f34_data *f34, const void *data,
int block_count, u8 command)
{
struct rmi_function *fn = f34->fn;
struct rmi_device *rmi_dev = fn->rmi_dev;
u16 address = fn->fd.data_base_addr + F34_BLOCK_DATA_OFFSET;
u8 start_address[] = { 0, 0 };
int i;
int ret;
ret = rmi_write_block(rmi_dev, fn->fd.data_base_addr,
start_address, sizeof(start_address));
if (ret) {
dev_err(&fn->dev, "Failed to write initial zeros: %d\n", ret);
return ret;
}
for (i = 0; i < block_count; i++) {
ret = rmi_write_block(rmi_dev, address,
data, f34->v5.block_size);
if (ret) {
dev_err(&fn->dev,
"failed to write block #%d: %d\n", i, ret);
return ret;
}
ret = rmi_f34_command(f34, command, F34_IDLE_WAIT_MS, false);
if (ret) {
dev_err(&fn->dev,
"Failed to write command for block #%d: %d\n",
i, ret);
return ret;
}
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "wrote block %d of %d\n",
i + 1, block_count);
data += f34->v5.block_size;
}
return 0;
}
static int rmi_f34_write_firmware(struct f34_data *f34, const void *data)
{
return rmi_f34_write_blocks(f34, data, f34->v5.fw_blocks,
F34_WRITE_FW_BLOCK);
}
static int rmi_f34_write_config(struct f34_data *f34, const void *data)
{
return rmi_f34_write_blocks(f34, data, f34->v5.config_blocks,
F34_WRITE_CONFIG_BLOCK);
}
int rmi_f34_enable_flash(struct f34_data *f34)
{
return rmi_f34_command(f34, F34_ENABLE_FLASH_PROG,
F34_ENABLE_WAIT_MS, true);
}
static int rmi_f34_flash_firmware(struct f34_data *f34,
const struct rmi_f34_firmware *syn_fw)
{
struct rmi_function *fn = f34->fn;
int ret;
if (syn_fw->image_size) {
dev_info(&fn->dev, "Erasing firmware...\n");
ret = rmi_f34_command(f34, F34_ERASE_ALL,
F34_ERASE_WAIT_MS, true);
if (ret)
return ret;
dev_info(&fn->dev, "Writing firmware (%d bytes)...\n",
syn_fw->image_size);
ret = rmi_f34_write_firmware(f34, syn_fw->data);
if (ret)
return ret;
}
if (syn_fw->config_size) {
/*
* We only need to erase config if we haven't updated
* firmware.
*/
if (!syn_fw->image_size) {
dev_info(&fn->dev, "Erasing config...\n");
ret = rmi_f34_command(f34, F34_ERASE_CONFIG,
F34_ERASE_WAIT_MS, true);
if (ret)
return ret;
}
dev_info(&fn->dev, "Writing config (%d bytes)...\n",
syn_fw->config_size);
ret = rmi_f34_write_config(f34,
&syn_fw->data[syn_fw->image_size]);
if (ret)
return ret;
}
return 0;
}
int rmi_f34_update_firmware(struct f34_data *f34, const struct firmware *fw)
{
const struct rmi_f34_firmware *syn_fw;
int ret;
syn_fw = (const struct rmi_f34_firmware *)fw->data;
BUILD_BUG_ON(offsetof(struct rmi_f34_firmware, data) !=
F34_FW_IMAGE_OFFSET);
rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
"FW size:%d, checksum:%08x, image_size:%d, config_size:%d\n",
(int)fw->size,
le32_to_cpu(syn_fw->checksum),
le32_to_cpu(syn_fw->image_size),
le32_to_cpu(syn_fw->config_size));
rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
"FW bootloader_id:%02x, product_id:%.*s, info: %02x%02x\n",
syn_fw->bootloader_version,
(int)sizeof(syn_fw->product_id), syn_fw->product_id,
syn_fw->product_info[0], syn_fw->product_info[1]);
if (syn_fw->image_size &&
syn_fw->image_size != f34->v5.fw_blocks * f34->v5.block_size) {
dev_err(&f34->fn->dev,
"Bad firmware image: fw size %d, expected %d\n",
syn_fw->image_size,
f34->v5.fw_blocks * f34->v5.block_size);
ret = -EILSEQ;
goto out;
}
if (syn_fw->config_size &&
syn_fw->config_size != f34->v5.config_blocks * f34->v5.block_size) {
dev_err(&f34->fn->dev,
"Bad firmware image: config size %d, expected %d\n",
syn_fw->config_size,
f34->v5.config_blocks * f34->v5.block_size);
ret = -EILSEQ;
goto out;
}
if (syn_fw->image_size && !syn_fw->config_size) {
dev_err(&f34->fn->dev, "Bad firmware image: no config data\n");
ret = -EILSEQ;
goto out;
}
dev_info(&f34->fn->dev, "Firmware image OK\n");
mutex_lock(&f34->v5.flash_mutex);
ret = rmi_f34_flash_firmware(f34, syn_fw);
mutex_unlock(&f34->v5.flash_mutex);
out:
return ret;
}
static int rmi_firmware_update(struct rmi_driver_data *data,
const struct firmware *fw)
{
struct rmi_device *rmi_dev = data->rmi_dev;
struct device *dev = &rmi_dev->dev;
struct f34_data *f34;
int ret;
if (!data->f34_container) {
dev_warn(dev, "%s: No F34 present!\n", __func__);
return -EINVAL;
}
f34 = dev_get_drvdata(&data->f34_container->dev);
if (f34->bl_version == 7) {
if (data->pdt_props & HAS_BSR) {
dev_err(dev, "%s: LTS not supported\n", __func__);
return -ENODEV;
}
} else if (f34->bl_version != 5) {
dev_warn(dev, "F34 V%d not supported!\n",
data->f34_container->fd.function_version);
return -ENODEV;
}
/* Enter flash mode */
if (f34->bl_version == 7)
ret = rmi_f34v7_start_reflash(f34, fw);
else
ret = rmi_f34_enable_flash(f34);
if (ret)
return ret;
rmi_disable_irq(rmi_dev, false);
/* Tear down functions and re-probe */
rmi_free_function_list(rmi_dev);
ret = rmi_probe_interrupts(data);
if (ret)
return ret;
ret = rmi_init_functions(data);
if (ret)
return ret;
if (!data->bootloader_mode || !data->f34_container) {
dev_warn(dev, "%s: No F34 present or not in bootloader!\n",
__func__);
return -EINVAL;
}
rmi_enable_irq(rmi_dev, false);
f34 = dev_get_drvdata(&data->f34_container->dev);
/* Perform firmware update */
if (f34->bl_version == 7)
ret = rmi_f34v7_do_reflash(f34, fw);
else
ret = rmi_f34_update_firmware(f34, fw);
dev_info(&f34->fn->dev, "Firmware update complete, status:%d\n", ret);
rmi_disable_irq(rmi_dev, false);
/* Re-probe */
rmi_dbg(RMI_DEBUG_FN, dev, "Re-probing device\n");
rmi_free_function_list(rmi_dev);
ret = rmi_scan_pdt(rmi_dev, NULL, rmi_initial_reset);
if (ret < 0)
dev_warn(dev, "RMI reset failed!\n");
ret = rmi_probe_interrupts(data);
if (ret)
return ret;
ret = rmi_init_functions(data);
if (ret)
return ret;
rmi_enable_irq(rmi_dev, false);
if (data->f01_container->dev.driver)
/* Driver already bound, so enable ATTN now. */
return rmi_enable_sensor(rmi_dev);
rmi_dbg(RMI_DEBUG_FN, dev, "%s complete\n", __func__);
return ret;
}
static int rmi_firmware_update(struct rmi_driver_data *data,
const struct firmware *fw);
static ssize_t rmi_driver_update_fw_store(struct device *dev,
struct device_attribute *dattr,
const char *buf, size_t count)
{
struct rmi_driver_data *data = dev_get_drvdata(dev);
char fw_name[NAME_MAX];
const struct firmware *fw;
size_t copy_count = count;
int ret;
if (count == 0 || count >= NAME_MAX)
return -EINVAL;
if (buf[count - 1] == '\0' || buf[count - 1] == '\n')
copy_count -= 1;
strncpy(fw_name, buf, copy_count);
fw_name[copy_count] = '\0';
ret = request_firmware(&fw, fw_name, dev);
if (ret)
return ret;
dev_info(dev, "Flashing %s\n", fw_name);
ret = rmi_firmware_update(data, fw);
release_firmware(fw);
return ret ?: count;
}
static DEVICE_ATTR(update_fw, 0200, NULL, rmi_driver_update_fw_store);
static struct attribute *rmi_firmware_attrs[] = {
&dev_attr_update_fw.attr,
NULL
};
static struct attribute_group rmi_firmware_attr_group = {
.attrs = rmi_firmware_attrs,
};
static int rmi_f34_probe(struct rmi_function *fn)
{
struct f34_data *f34;
unsigned char f34_queries[9];
bool has_config_id;
u8 version = fn->fd.function_version;
int ret;
f34 = devm_kzalloc(&fn->dev, sizeof(struct f34_data), GFP_KERNEL);
if (!f34)
return -ENOMEM;
f34->fn = fn;
dev_set_drvdata(&fn->dev, f34);
/* v5 code only supported version 0, try V7 probe */
if (version > 0)
return rmi_f34v7_probe(f34);
else if (version != 0)
return -ENODEV;
f34->bl_version = 5;
ret = rmi_read_block(fn->rmi_dev, fn->fd.query_base_addr,
f34_queries, sizeof(f34_queries));
if (ret) {
dev_err(&fn->dev, "%s: Failed to query properties\n",
__func__);
return ret;
}
snprintf(f34->bootloader_id, sizeof(f34->bootloader_id),
"%c%c", f34_queries[0], f34_queries[1]);
mutex_init(&f34->v5.flash_mutex);
init_completion(&f34->v5.cmd_done);
f34->v5.block_size = get_unaligned_le16(&f34_queries[3]);
f34->v5.fw_blocks = get_unaligned_le16(&f34_queries[5]);
f34->v5.config_blocks = get_unaligned_le16(&f34_queries[7]);
f34->v5.ctrl_address = fn->fd.data_base_addr + F34_BLOCK_DATA_OFFSET +
f34->v5.block_size;
has_config_id = f34_queries[2] & (1 << 2);
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "Bootloader ID: %s\n",
f34->bootloader_id);
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "Block size: %d\n",
f34->v5.block_size);
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "FW blocks: %d\n",
f34->v5.fw_blocks);
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "CFG blocks: %d\n",
f34->v5.config_blocks);
if (has_config_id) {
ret = rmi_read_block(fn->rmi_dev, fn->fd.control_base_addr,
f34_queries, sizeof(f34_queries));
if (ret) {
dev_err(&fn->dev, "Failed to read F34 config ID\n");
return ret;
}
snprintf(f34->configuration_id, sizeof(f34->configuration_id),
"%02x%02x%02x%02x",
f34_queries[0], f34_queries[1],
f34_queries[2], f34_queries[3]);
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "Configuration ID: %s\n",
f34->configuration_id);
}
return 0;
}
int rmi_f34_create_sysfs(struct rmi_device *rmi_dev)
{
return sysfs_create_group(&rmi_dev->dev.kobj, &rmi_firmware_attr_group);
}
void rmi_f34_remove_sysfs(struct rmi_device *rmi_dev)
{
sysfs_remove_group(&rmi_dev->dev.kobj, &rmi_firmware_attr_group);
}
struct rmi_function_handler rmi_f34_handler = {
.driver = {
.name = "rmi4_f34",
},
.func = 0x34,
.probe = rmi_f34_probe,
.attention = rmi_f34_attention,
};

314
drivers/input/rmi4/rmi_f34.h Normal file
View File

@@ -0,0 +1,314 @@
/*
* Copyright (c) 2007-2016, Synaptics Incorporated
* Copyright (C) 2016 Zodiac Inflight Innovations
*
* 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.
*/
#ifndef _RMI_F34_H
#define _RMI_F34_H
/* F34 image file offsets. */
#define F34_FW_IMAGE_OFFSET 0x100
/* F34 register offsets. */
#define F34_BLOCK_DATA_OFFSET 2
/* F34 commands */
#define F34_WRITE_FW_BLOCK 0x2
#define F34_ERASE_ALL 0x3
#define F34_READ_CONFIG_BLOCK 0x5
#define F34_WRITE_CONFIG_BLOCK 0x6
#define F34_ERASE_CONFIG 0x7
#define F34_ENABLE_FLASH_PROG 0xf
#define F34_STATUS_IN_PROGRESS 0xff
#define F34_STATUS_IDLE 0x80
#define F34_IDLE_WAIT_MS 500
#define F34_ENABLE_WAIT_MS 300
#define F34_ERASE_WAIT_MS 5000
#define F34_BOOTLOADER_ID_LEN 2
/* F34 V7 defines */
#define V7_FLASH_STATUS_OFFSET 0
#define V7_PARTITION_ID_OFFSET 1
#define V7_BLOCK_NUMBER_OFFSET 2
#define V7_TRANSFER_LENGTH_OFFSET 3
#define V7_COMMAND_OFFSET 4
#define V7_PAYLOAD_OFFSET 5
#define V7_BOOTLOADER_ID_OFFSET 1
#define IMAGE_HEADER_VERSION_10 0x10
#define CONFIG_ID_SIZE 32
#define PRODUCT_ID_SIZE 10
#define ENABLE_WAIT_MS (1 * 1000)
#define WRITE_WAIT_MS (3 * 1000)
#define MIN_SLEEP_TIME_US 50
#define MAX_SLEEP_TIME_US 100
#define HAS_BSR BIT(5)
#define HAS_CONFIG_ID BIT(3)
#define HAS_GUEST_CODE BIT(6)
#define HAS_DISP_CFG BIT(5)
/* F34 V7 commands */
#define CMD_V7_IDLE 0
#define CMD_V7_ENTER_BL 1
#define CMD_V7_READ 2
#define CMD_V7_WRITE 3
#define CMD_V7_ERASE 4
#define CMD_V7_ERASE_AP 5
#define CMD_V7_SENSOR_ID 6
#define v7_CMD_IDLE 0
#define v7_CMD_WRITE_FW 1
#define v7_CMD_WRITE_CONFIG 2
#define v7_CMD_WRITE_LOCKDOWN 3
#define v7_CMD_WRITE_GUEST_CODE 4
#define v7_CMD_READ_CONFIG 5
#define v7_CMD_ERASE_ALL 6
#define v7_CMD_ERASE_UI_FIRMWARE 7
#define v7_CMD_ERASE_UI_CONFIG 8
#define v7_CMD_ERASE_BL_CONFIG 9
#define v7_CMD_ERASE_DISP_CONFIG 10
#define v7_CMD_ERASE_FLASH_CONFIG 11
#define v7_CMD_ERASE_GUEST_CODE 12
#define v7_CMD_ENABLE_FLASH_PROG 13
#define v7_UI_CONFIG_AREA 0
#define v7_PM_CONFIG_AREA 1
#define v7_BL_CONFIG_AREA 2
#define v7_DP_CONFIG_AREA 3
#define v7_FLASH_CONFIG_AREA 4
/* F34 V7 partition IDs */
#define BOOTLOADER_PARTITION 1
#define DEVICE_CONFIG_PARTITION 2
#define FLASH_CONFIG_PARTITION 3
#define MANUFACTURING_BLOCK_PARTITION 4
#define GUEST_SERIALIZATION_PARTITION 5
#define GLOBAL_PARAMETERS_PARTITION 6
#define CORE_CODE_PARTITION 7
#define CORE_CONFIG_PARTITION 8
#define GUEST_CODE_PARTITION 9
#define DISPLAY_CONFIG_PARTITION 10
/* F34 V7 container IDs */
#define TOP_LEVEL_CONTAINER 0
#define UI_CONTAINER 1
#define UI_CONFIG_CONTAINER 2
#define BL_CONTAINER 3
#define BL_IMAGE_CONTAINER 4
#define BL_CONFIG_CONTAINER 5
#define BL_LOCKDOWN_INFO_CONTAINER 6
#define PERMANENT_CONFIG_CONTAINER 7
#define GUEST_CODE_CONTAINER 8
#define BL_PROTOCOL_DESCRIPTOR_CONTAINER 9
#define UI_PROTOCOL_DESCRIPTOR_CONTAINER 10
#define RMI_SELF_DISCOVERY_CONTAINER 11
#define RMI_PAGE_CONTENT_CONTAINER 12
#define GENERAL_INFORMATION_CONTAINER 13
#define DEVICE_CONFIG_CONTAINER 14
#define FLASH_CONFIG_CONTAINER 15
#define GUEST_SERIALIZATION_CONTAINER 16
#define GLOBAL_PARAMETERS_CONTAINER 17
#define CORE_CODE_CONTAINER 18
#define CORE_CONFIG_CONTAINER 19
#define DISPLAY_CONFIG_CONTAINER 20
struct f34v7_query_1_7 {
u8 bl_minor_revision; /* query 1 */
u8 bl_major_revision;
__le32 bl_fw_id; /* query 2 */
u8 minimum_write_size; /* query 3 */
__le16 block_size;
__le16 flash_page_size;
__le16 adjustable_partition_area_size; /* query 4 */
__le16 flash_config_length; /* query 5 */
__le16 payload_length; /* query 6 */
u8 partition_support[4]; /* query 7 */
} __packed;
struct f34v7_data_1_5 {
u8 partition_id;
__le16 block_offset;
__le16 transfer_length;
u8 command;
u8 payload[2];
} __packed;
struct block_data {
const void *data;
int size;
};
struct partition_table {
u8 partition_id;
u8 byte_1_reserved;
__le16 partition_length;
__le16 start_physical_address;
__le16 partition_properties;
} __packed;
struct physical_address {
u16 ui_firmware;
u16 ui_config;
u16 dp_config;
u16 guest_code;
};
struct container_descriptor {
__le32 content_checksum;
__le16 container_id;
u8 minor_version;
u8 major_version;
u8 reserved_08;
u8 reserved_09;
u8 reserved_0a;
u8 reserved_0b;
u8 container_option_flags[4];
__le32 content_options_length;
__le32 content_options_address;
__le32 content_length;
__le32 content_address;
} __packed;
struct block_count {
u16 ui_firmware;
u16 ui_config;
u16 dp_config;
u16 fl_config;
u16 pm_config;
u16 bl_config;
u16 lockdown;
u16 guest_code;
};
struct image_header_10 {
__le32 checksum;
u8 reserved_04;
u8 reserved_05;
u8 minor_header_version;
u8 major_header_version;
u8 reserved_08;
u8 reserved_09;
u8 reserved_0a;
u8 reserved_0b;
__le32 top_level_container_start_addr;
};
struct image_metadata {
bool contains_firmware_id;
bool contains_bootloader;
bool contains_display_cfg;
bool contains_guest_code;
bool contains_flash_config;
unsigned int firmware_id;
unsigned int checksum;
unsigned int bootloader_size;
unsigned int display_cfg_offset;
unsigned char bl_version;
unsigned char product_id[PRODUCT_ID_SIZE + 1];
unsigned char cstmr_product_id[PRODUCT_ID_SIZE + 1];
struct block_data bootloader;
struct block_data ui_firmware;
struct block_data ui_config;
struct block_data dp_config;
struct block_data fl_config;
struct block_data bl_config;
struct block_data guest_code;
struct block_data lockdown;
struct block_count blkcount;
struct physical_address phyaddr;
};
struct register_offset {
u8 properties;
u8 properties_2;
u8 block_size;
u8 block_count;
u8 gc_block_count;
u8 flash_status;
u8 partition_id;
u8 block_number;
u8 transfer_length;
u8 flash_cmd;
u8 payload;
};
struct rmi_f34_firmware {
__le32 checksum;
u8 pad1[3];
u8 bootloader_version;
__le32 image_size;
__le32 config_size;
u8 product_id[10];
u8 product_info[2];
u8 pad2[228];
u8 data[];
};
struct f34v5_data {
u16 block_size;
u16 fw_blocks;
u16 config_blocks;
u16 ctrl_address;
u8 status;
struct completion cmd_done;
struct mutex flash_mutex;
};
struct f34v7_data {
bool has_display_cfg;
bool has_guest_code;
bool force_update;
bool in_bl_mode;
u8 *read_config_buf;
size_t read_config_buf_size;
u8 command;
u8 flash_status;
u16 block_size;
u16 config_block_count;
u16 config_size;
u16 config_area;
u16 flash_config_length;
u16 payload_length;
u8 partitions;
u16 partition_table_bytes;
bool new_partition_table;
struct register_offset off;
struct block_count blkcount;
struct physical_address phyaddr;
struct image_metadata img;
const void *config_data;
const void *image;
};
struct f34_data {
struct rmi_function *fn;
u8 bl_version;
unsigned char bootloader_id[5];
unsigned char configuration_id[CONFIG_ID_SIZE*2 + 1];
union {
struct f34v5_data v5;
struct f34v7_data v7;
};
};
int rmi_f34v7_start_reflash(struct f34_data *f34, const struct firmware *fw);
int rmi_f34v7_do_reflash(struct f34_data *f34, const struct firmware *fw);
int rmi_f34v7_probe(struct f34_data *f34);
#endif /* _RMI_F34_H */

1372
drivers/input/rmi4/rmi_f34v7.c Normal file
View File

File diff suppressed because it is too large Load Diff

19
drivers/input/rmi4/rmi_f54.c
View File

@@ -200,7 +200,7 @@ static int rmi_f54_request_report(struct rmi_function *fn, u8 report_type)
error = rmi_write(rmi_dev, fn->fd.command_base_addr, F54_GET_REPORT);
if (error < 0)
return error;
goto unlock;
init_completion(&f54->cmd_done);
@@ -209,15 +209,18 @@ static int rmi_f54_request_report(struct rmi_function *fn, u8 report_type)
queue_delayed_work(f54->workqueue, &f54->work, 0);
unlock:
mutex_unlock(&f54->data_mutex);
return 0;
return error;
}
static size_t rmi_f54_get_report_size(struct f54_data *f54)
{
u8 rx = f54->num_rx_electrodes ? : f54->num_rx_electrodes;
u8 tx = f54->num_tx_electrodes ? : f54->num_tx_electrodes;
struct rmi_device *rmi_dev = f54->fn->rmi_dev;
struct rmi_driver_data *drv_data = dev_get_drvdata(&rmi_dev->dev);
u8 rx = drv_data->num_rx_electrodes ? : f54->num_rx_electrodes;
u8 tx = drv_data->num_tx_electrodes ? : f54->num_tx_electrodes;
size_t size;
switch (rmi_f54_get_reptype(f54, f54->input)) {
@@ -401,6 +404,10 @@ static int rmi_f54_vidioc_enum_input(struct file *file, void *priv,
static int rmi_f54_set_input(struct f54_data *f54, unsigned int i)
{
struct rmi_device *rmi_dev = f54->fn->rmi_dev;
struct rmi_driver_data *drv_data = dev_get_drvdata(&rmi_dev->dev);
u8 rx = drv_data->num_rx_electrodes ? : f54->num_rx_electrodes;
u8 tx = drv_data->num_tx_electrodes ? : f54->num_tx_electrodes;
struct v4l2_pix_format *f = &f54->format;
enum rmi_f54_report_type reptype;
int ret;
@@ -415,8 +422,8 @@ static int rmi_f54_set_input(struct f54_data *f54, unsigned int i)
f54->input = i;
f->width = f54->num_rx_electrodes;
f->height = f54->num_tx_electrodes;
f->width = rx;
f->height = tx;
f->field = V4L2_FIELD_NONE;
f->colorspace = V4L2_COLORSPACE_RAW;
f->bytesperline = f->width * sizeof(u16);

131
drivers/input/rmi4/rmi_f55.c Normal file
View File

@@ -0,0 +1,131 @@
/*
* Copyright (c) 2012-2015 Synaptics Incorporated
* Copyright (C) 2016 Zodiac Inflight Innovations
*
* 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.
*/
#include <linux/bitops.h>
#include <linux/kernel.h>
#include <linux/rmi.h>
#include <linux/slab.h>
#include "rmi_driver.h"
#define F55_NAME "rmi4_f55"
/* F55 data offsets */
#define F55_NUM_RX_OFFSET 0
#define F55_NUM_TX_OFFSET 1
#define F55_PHYS_CHAR_OFFSET 2
/* Only read required query registers */
#define F55_QUERY_LEN 3
/* F55 capabilities */
#define F55_CAP_SENSOR_ASSIGN BIT(0)
struct f55_data {
struct rmi_function *fn;
u8 qry[F55_QUERY_LEN];
u8 num_rx_electrodes;
u8 cfg_num_rx_electrodes;
u8 num_tx_electrodes;
u8 cfg_num_tx_electrodes;
};
static int rmi_f55_detect(struct rmi_function *fn)
{
struct rmi_device *rmi_dev = fn->rmi_dev;
struct rmi_driver_data *drv_data = dev_get_drvdata(&rmi_dev->dev);
struct f55_data *f55;
int error;
f55 = dev_get_drvdata(&fn->dev);
error = rmi_read_block(fn->rmi_dev, fn->fd.query_base_addr,
&f55->qry, sizeof(f55->qry));
if (error) {
dev_err(&fn->dev, "%s: Failed to query F55 properties\n",
__func__);
return error;
}
f55->num_rx_electrodes = f55->qry[F55_NUM_RX_OFFSET];
f55->num_tx_electrodes = f55->qry[F55_NUM_TX_OFFSET];
f55->cfg_num_rx_electrodes = f55->num_rx_electrodes;
f55->cfg_num_tx_electrodes = f55->num_rx_electrodes;
drv_data->num_rx_electrodes = f55->cfg_num_rx_electrodes;
drv_data->num_tx_electrodes = f55->cfg_num_rx_electrodes;
if (f55->qry[F55_PHYS_CHAR_OFFSET] & F55_CAP_SENSOR_ASSIGN) {
int i, total;
u8 buf[256];
/*
* Calculate the number of enabled receive and transmit
* electrodes by reading F55:Ctrl1 (sensor receiver assignment)
* and F55:Ctrl2 (sensor transmitter assignment). The number of
* enabled electrodes is the sum of all field entries with a
* value other than 0xff.
*/
error = rmi_read_block(fn->rmi_dev,
fn->fd.control_base_addr + 1,
buf, f55->num_rx_electrodes);
if (!error) {
total = 0;
for (i = 0; i < f55->num_rx_electrodes; i++) {
if (buf[i] != 0xff)
total++;
}
f55->cfg_num_rx_electrodes = total;
drv_data->num_rx_electrodes = total;
}
error = rmi_read_block(fn->rmi_dev,
fn->fd.control_base_addr + 2,
buf, f55->num_tx_electrodes);
if (!error) {
total = 0;
for (i = 0; i < f55->num_tx_electrodes; i++) {
if (buf[i] != 0xff)
total++;
}
f55->cfg_num_tx_electrodes = total;
drv_data->num_tx_electrodes = total;
}
}
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "F55 num_rx_electrodes: %d (raw %d)\n",
f55->cfg_num_rx_electrodes, f55->num_rx_electrodes);
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "F55 num_tx_electrodes: %d (raw %d)\n",
f55->cfg_num_tx_electrodes, f55->num_tx_electrodes);
return 0;
}
static int rmi_f55_probe(struct rmi_function *fn)
{
struct f55_data *f55;
f55 = devm_kzalloc(&fn->dev, sizeof(struct f55_data), GFP_KERNEL);
if (!f55)
return -ENOMEM;
f55->fn = fn;
dev_set_drvdata(&fn->dev, f55);
return rmi_f55_detect(fn);
}
struct rmi_function_handler rmi_f55_handler = {
.driver = {
.name = F55_NAME,
},
.func = 0x55,
.probe = rmi_f55_probe,
};

74
drivers/input/rmi4/rmi_i2c.c
View File

@@ -9,7 +9,6 @@
#include <linux/i2c.h>
#include <linux/rmi.h>
#include <linux/irq.h>
#include <linux/of.h>
#include <linux/delay.h>
#include <linux/regulator/consumer.h>
@@ -35,8 +34,6 @@ struct rmi_i2c_xport {
struct mutex page_mutex;
int page;
int irq;
u8 *tx_buf;
size_t tx_buf_size;
@@ -177,42 +174,6 @@ static const struct rmi_transport_ops rmi_i2c_ops = {
.read_block = rmi_i2c_read_block,
};
static irqreturn_t rmi_i2c_irq(int irq, void *dev_id)
{
struct rmi_i2c_xport *rmi_i2c = dev_id;
struct rmi_device *rmi_dev = rmi_i2c->xport.rmi_dev;
int ret;
ret = rmi_process_interrupt_requests(rmi_dev);
if (ret)
rmi_dbg(RMI_DEBUG_XPORT, &rmi_dev->dev,
"Failed to process interrupt request: %d\n", ret);
return IRQ_HANDLED;
}
static int rmi_i2c_init_irq(struct i2c_client *client)
{
struct rmi_i2c_xport *rmi_i2c = i2c_get_clientdata(client);
int irq_flags = irqd_get_trigger_type(irq_get_irq_data(rmi_i2c->irq));
int ret;
if (!irq_flags)
irq_flags = IRQF_TRIGGER_LOW;
ret = devm_request_threaded_irq(&client->dev, rmi_i2c->irq, NULL,
rmi_i2c_irq, irq_flags | IRQF_ONESHOT, client->name,
rmi_i2c);
if (ret < 0) {
dev_warn(&client->dev, "Failed to register interrupt %d\n",
rmi_i2c->irq);
return ret;
}
return 0;
}
#ifdef CONFIG_OF
static const struct of_device_id rmi_i2c_of_match[] = {
{ .compatible = "syna,rmi4-i2c" },
@@ -255,8 +216,7 @@ static int rmi_i2c_probe(struct i2c_client *client,
if (!client->dev.of_node && client_pdata)
*pdata = *client_pdata;
if (client->irq > 0)
rmi_i2c->irq = client->irq;
pdata->irq = client->irq;
rmi_dbg(RMI_DEBUG_XPORT, &client->dev, "Probing %s.\n",
dev_name(&client->dev));
@@ -321,10 +281,6 @@ static int rmi_i2c_probe(struct i2c_client *client,
if (retval)
return retval;
retval = rmi_i2c_init_irq(client);
if (retval < 0)
return retval;
dev_info(&client->dev, "registered rmi i2c driver at %#04x.\n",
client->addr);
return 0;
@@ -337,18 +293,10 @@ static int rmi_i2c_suspend(struct device *dev)
struct rmi_i2c_xport *rmi_i2c = i2c_get_clientdata(client);
int ret;
ret = rmi_driver_suspend(rmi_i2c->xport.rmi_dev);
ret = rmi_driver_suspend(rmi_i2c->xport.rmi_dev, true);
if (ret)
dev_warn(dev, "Failed to resume device: %d\n", ret);
disable_irq(rmi_i2c->irq);
if (device_may_wakeup(&client->dev)) {
ret = enable_irq_wake(rmi_i2c->irq);
if (!ret)
dev_warn(dev, "Failed to enable irq for wake: %d\n",
ret);
}
regulator_bulk_disable(ARRAY_SIZE(rmi_i2c->supplies),
rmi_i2c->supplies);
@@ -368,15 +316,7 @@ static int rmi_i2c_resume(struct device *dev)
msleep(rmi_i2c->startup_delay);
enable_irq(rmi_i2c->irq);
if (device_may_wakeup(&client->dev)) {
ret = disable_irq_wake(rmi_i2c->irq);
if (!ret)
dev_warn(dev, "Failed to disable irq for wake: %d\n",
ret);
}
ret = rmi_driver_resume(rmi_i2c->xport.rmi_dev);
ret = rmi_driver_resume(rmi_i2c->xport.rmi_dev, true);
if (ret)
dev_warn(dev, "Failed to resume device: %d\n", ret);
@@ -391,12 +331,10 @@ static int rmi_i2c_runtime_suspend(struct device *dev)
struct rmi_i2c_xport *rmi_i2c = i2c_get_clientdata(client);
int ret;
ret = rmi_driver_suspend(rmi_i2c->xport.rmi_dev);
ret = rmi_driver_suspend(rmi_i2c->xport.rmi_dev, false);
if (ret)
dev_warn(dev, "Failed to resume device: %d\n", ret);
disable_irq(rmi_i2c->irq);
regulator_bulk_disable(ARRAY_SIZE(rmi_i2c->supplies),
rmi_i2c->supplies);
@@ -416,9 +354,7 @@ static int rmi_i2c_runtime_resume(struct device *dev)
msleep(rmi_i2c->startup_delay);
enable_irq(rmi_i2c->irq);
ret = rmi_driver_resume(rmi_i2c->xport.rmi_dev);
ret = rmi_driver_resume(rmi_i2c->xport.rmi_dev, false);
if (ret)
dev_warn(dev, "Failed to resume device: %d\n", ret);

447
drivers/input/rmi4/rmi_smbus.c Normal file
View File

@@ -0,0 +1,447 @@
/*
* Copyright (c) 2015 - 2016 Red Hat, Inc
* Copyright (c) 2011, 2012 Synaptics Incorporated
* Copyright (c) 2011 Unixphere
*
* 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.
*/
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/kconfig.h>
#include <linux/lockdep.h>
#include <linux/module.h>
#include <linux/pm.h>
#include <linux/rmi.h>
#include <linux/slab.h>
#include "rmi_driver.h"
#define SMB_PROTOCOL_VERSION_ADDRESS 0xfd
#define SMB_MAX_COUNT 32
#define RMI_SMB2_MAP_SIZE 8 /* 8 entry of 4 bytes each */
#define RMI_SMB2_MAP_FLAGS_WE 0x01
struct mapping_table_entry {
__le16 rmiaddr;
u8 readcount;
u8 flags;
};
struct rmi_smb_xport {
struct rmi_transport_dev xport;
struct i2c_client *client;
struct mutex page_mutex;
int page;
u8 table_index;
struct mutex mappingtable_mutex;
struct mapping_table_entry mapping_table[RMI_SMB2_MAP_SIZE];
};
static int rmi_smb_get_version(struct rmi_smb_xport *rmi_smb)
{
struct i2c_client *client = rmi_smb->client;
int retval;
/* Check if for SMBus new version device by reading version byte. */
retval = i2c_smbus_read_byte_data(client, SMB_PROTOCOL_VERSION_ADDRESS);
if (retval < 0) {
dev_err(&client->dev, "failed to get SMBus version number!\n");
return retval;
}
return retval + 1;
}
/* SMB block write - wrapper over ic2_smb_write_block */
static int smb_block_write(struct rmi_transport_dev *xport,
u8 commandcode, const void *buf, size_t len)
{
struct rmi_smb_xport *rmi_smb =
container_of(xport, struct rmi_smb_xport, xport);
struct i2c_client *client = rmi_smb->client;
int retval;
retval = i2c_smbus_write_block_data(client, commandcode, len, buf);
rmi_dbg(RMI_DEBUG_XPORT, &client->dev,
"wrote %zd bytes at %#04x: %d (%*ph)\n",
len, commandcode, retval, (int)len, buf);
return retval;
}
/*
* The function to get command code for smbus operations and keeps
* records to the driver mapping table
*/
static int rmi_smb_get_command_code(struct rmi_transport_dev *xport,
u16 rmiaddr, int bytecount, bool isread, u8 *commandcode)
{
struct rmi_smb_xport *rmi_smb =
container_of(xport, struct rmi_smb_xport, xport);
int i;
int retval;
struct mapping_table_entry mapping_data[1];
mutex_lock(&rmi_smb->mappingtable_mutex);
for (i = 0; i < RMI_SMB2_MAP_SIZE; i++) {
if (rmi_smb->mapping_table[i].rmiaddr == rmiaddr) {
if (isread) {
if (rmi_smb->mapping_table[i].readcount
== bytecount) {
*commandcode = i;
retval = 0;
goto exit;
}
} else {
if (rmi_smb->mapping_table[i].flags &
RMI_SMB2_MAP_FLAGS_WE) {
*commandcode = i;
retval = 0;
goto exit;
}
}
}
}
i = rmi_smb->table_index;
rmi_smb->table_index = (i + 1) % RMI_SMB2_MAP_SIZE;
/* constructs mapping table data entry. 4 bytes each entry */
memset(mapping_data, 0, sizeof(mapping_data));
mapping_data[0].rmiaddr = cpu_to_le16(rmiaddr);
mapping_data[0].readcount = bytecount;
mapping_data[0].flags = !isread ? RMI_SMB2_MAP_FLAGS_WE : 0;
retval = smb_block_write(xport, i + 0x80, mapping_data,
sizeof(mapping_data));
if (retval < 0) {
/*
* if not written to device mapping table
* clear the driver mapping table records
*/
rmi_smb->mapping_table[i].rmiaddr = 0x0000;
rmi_smb->mapping_table[i].readcount = 0;
rmi_smb->mapping_table[i].flags = 0;
goto exit;
}
/* save to the driver level mapping table */
rmi_smb->mapping_table[i].rmiaddr = rmiaddr;
rmi_smb->mapping_table[i].readcount = bytecount;
rmi_smb->mapping_table[i].flags = !isread ? RMI_SMB2_MAP_FLAGS_WE : 0;
*commandcode = i;
exit:
mutex_unlock(&rmi_smb->mappingtable_mutex);
return retval;
}
static int rmi_smb_write_block(struct rmi_transport_dev *xport, u16 rmiaddr,
const void *databuff, size_t len)
{
int retval = 0;
u8 commandcode;
struct rmi_smb_xport *rmi_smb =
container_of(xport, struct rmi_smb_xport, xport);
int cur_len = (int)len;
mutex_lock(&rmi_smb->page_mutex);
while (cur_len > 0) {
/*
* break into 32 bytes chunks to write get command code
*/
int block_len = min_t(int, len, SMB_MAX_COUNT);
retval = rmi_smb_get_command_code(xport, rmiaddr, block_len,
false, &commandcode);
if (retval < 0)
goto exit;
retval = smb_block_write(xport, commandcode,
databuff, block_len);
if (retval < 0)
goto exit;
/* prepare to write next block of bytes */
cur_len -= SMB_MAX_COUNT;
databuff += SMB_MAX_COUNT;
rmiaddr += SMB_MAX_COUNT;
}
exit:
mutex_unlock(&rmi_smb->page_mutex);
return retval;
}
/* SMB block read - wrapper over ic2_smb_read_block */
static int smb_block_read(struct rmi_transport_dev *xport,
u8 commandcode, void *buf, size_t len)
{
struct rmi_smb_xport *rmi_smb =
container_of(xport, struct rmi_smb_xport, xport);
struct i2c_client *client = rmi_smb->client;
int retval;
retval = i2c_smbus_read_block_data(client, commandcode, buf);
if (retval < 0)
return retval;
return retval;
}
static int rmi_smb_read_block(struct rmi_transport_dev *xport, u16 rmiaddr,
void *databuff, size_t len)
{
struct rmi_smb_xport *rmi_smb =
container_of(xport, struct rmi_smb_xport, xport);
int retval;
u8 commandcode;
int cur_len = (int)len;
mutex_lock(&rmi_smb->page_mutex);
memset(databuff, 0, len);
while (cur_len > 0) {
/* break into 32 bytes chunks to write get command code */
int block_len = min_t(int, cur_len, SMB_MAX_COUNT);
retval = rmi_smb_get_command_code(xport, rmiaddr, block_len,
true, &commandcode);
if (retval < 0)
goto exit;
retval = smb_block_read(xport, commandcode,
databuff, block_len);
if (retval < 0)
goto exit;
/* prepare to read next block of bytes */
cur_len -= SMB_MAX_COUNT;
databuff += SMB_MAX_COUNT;
rmiaddr += SMB_MAX_COUNT;
}
retval = 0;
exit:
mutex_unlock(&rmi_smb->page_mutex);
return retval;
}
static void rmi_smb_clear_state(struct rmi_smb_xport *rmi_smb)
{
/* the mapping table has been flushed, discard the current one */
mutex_lock(&rmi_smb->mappingtable_mutex);
memset(rmi_smb->mapping_table, 0, sizeof(rmi_smb->mapping_table));
mutex_unlock(&rmi_smb->mappingtable_mutex);
}
static int rmi_smb_enable_smbus_mode(struct rmi_smb_xport *rmi_smb)
{
int retval;
/* we need to get the smbus version to activate the touchpad */
retval = rmi_smb_get_version(rmi_smb);
if (retval < 0)
return retval;
return 0;
}
static int rmi_smb_reset(struct rmi_transport_dev *xport, u16 reset_addr)
{
struct rmi_smb_xport *rmi_smb =
container_of(xport, struct rmi_smb_xport, xport);
rmi_smb_clear_state(rmi_smb);
/*
* we do not call the actual reset command, it has to be handled in
* PS/2 or there will be races between PS/2 and SMBus.
* PS/2 should ensure that a psmouse_reset is called before
* intializing the device and after it has been removed to be in a known
* state.
*/
return rmi_smb_enable_smbus_mode(rmi_smb);
}
static const struct rmi_transport_ops rmi_smb_ops = {
.write_block = rmi_smb_write_block,
.read_block = rmi_smb_read_block,
.reset = rmi_smb_reset,
};
static int rmi_smb_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct rmi_device_platform_data *pdata = dev_get_platdata(&client->dev);
struct rmi_smb_xport *rmi_smb;
int retval;
int smbus_version;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_READ_BLOCK_DATA |
I2C_FUNC_SMBUS_HOST_NOTIFY)) {
dev_err(&client->dev,
"adapter does not support required functionality.\n");
return -ENODEV;
}
if (client->irq <= 0) {
dev_err(&client->dev, "no IRQ provided, giving up.\n");
return client->irq ? client->irq : -ENODEV;
}
rmi_smb = devm_kzalloc(&client->dev, sizeof(struct rmi_smb_xport),
GFP_KERNEL);
if (!rmi_smb)
return -ENOMEM;
if (!pdata) {
dev_err(&client->dev, "no platform data, aborting\n");
return -ENOMEM;
}
rmi_dbg(RMI_DEBUG_XPORT, &client->dev, "Probing %s.\n",
dev_name(&client->dev));
rmi_smb->client = client;
mutex_init(&rmi_smb->page_mutex);
mutex_init(&rmi_smb->mappingtable_mutex);
rmi_smb->xport.dev = &client->dev;
rmi_smb->xport.pdata = *pdata;
rmi_smb->xport.pdata.irq = client->irq;
rmi_smb->xport.proto_name = "smb2";
rmi_smb->xport.ops = &rmi_smb_ops;
retval = rmi_smb_get_version(rmi_smb);
if (retval < 0)
return retval;
smbus_version = retval;
rmi_dbg(RMI_DEBUG_XPORT, &client->dev, "Smbus version is %d",
smbus_version);
if (smbus_version != 2) {
dev_err(&client->dev, "Unrecognized SMB version %d.\n",
smbus_version);
return -ENODEV;
}
i2c_set_clientdata(client, rmi_smb);
retval = rmi_register_transport_device(&rmi_smb->xport);
if (retval) {
dev_err(&client->dev, "Failed to register transport driver at 0x%.2X.\n",
client->addr);
i2c_set_clientdata(client, NULL);
return retval;
}
dev_info(&client->dev, "registered rmi smb driver at %#04x.\n",
client->addr);
return 0;
}
static int rmi_smb_remove(struct i2c_client *client)
{
struct rmi_smb_xport *rmi_smb = i2c_get_clientdata(client);
rmi_unregister_transport_device(&rmi_smb->xport);
return 0;
}
static int __maybe_unused rmi_smb_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct rmi_smb_xport *rmi_smb = i2c_get_clientdata(client);
int ret;
ret = rmi_driver_suspend(rmi_smb->xport.rmi_dev, true);
if (ret)
dev_warn(dev, "Failed to suspend device: %d\n", ret);
return ret;
}
static int __maybe_unused rmi_smb_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct rmi_smb_xport *rmi_smb = i2c_get_clientdata(client);
int ret;
ret = rmi_driver_suspend(rmi_smb->xport.rmi_dev, false);
if (ret)
dev_warn(dev, "Failed to suspend device: %d\n", ret);
return ret;
}
static int __maybe_unused rmi_smb_resume(struct device *dev)
{
struct i2c_client *client = container_of(dev, struct i2c_client, dev);
struct rmi_smb_xport *rmi_smb = i2c_get_clientdata(client);
struct rmi_device *rmi_dev = rmi_smb->xport.rmi_dev;
int ret;
rmi_smb_reset(&rmi_smb->xport, 0);
rmi_reset(rmi_dev);
ret = rmi_driver_resume(rmi_smb->xport.rmi_dev, true);
if (ret)
dev_warn(dev, "Failed to resume device: %d\n", ret);
return 0;
}
static int __maybe_unused rmi_smb_runtime_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct rmi_smb_xport *rmi_smb = i2c_get_clientdata(client);
int ret;
ret = rmi_driver_resume(rmi_smb->xport.rmi_dev, false);
if (ret)
dev_warn(dev, "Failed to resume device: %d\n", ret);
return 0;
}
static const struct dev_pm_ops rmi_smb_pm = {
SET_SYSTEM_SLEEP_PM_OPS(rmi_smb_suspend, rmi_smb_resume)
SET_RUNTIME_PM_OPS(rmi_smb_runtime_suspend, rmi_smb_runtime_resume,
NULL)
};
static const struct i2c_device_id rmi_id[] = {
{ "rmi4_smbus", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, rmi_id);
static struct i2c_driver rmi_smb_driver = {
.driver = {
.name = "rmi4_smbus",
.pm = &rmi_smb_pm,
},
.id_table = rmi_id,
.probe = rmi_smb_probe,
.remove = rmi_smb_remove,
};
module_i2c_driver(rmi_smb_driver);
MODULE_AUTHOR("Andrew Duggan <aduggan@synaptics.com>");
MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@redhat.com>");
MODULE_DESCRIPTION("RMI4 SMBus driver");
MODULE_LICENSE("GPL");

72
drivers/input/rmi4/rmi_spi.c
View File

@@ -12,7 +12,6 @@
#include <linux/rmi.h>
#include <linux/slab.h>
#include <linux/spi/spi.h>
#include <linux/irq.h>
#include <linux/of.h>
#include "rmi_driver.h"
@@ -44,8 +43,6 @@ struct rmi_spi_xport {
struct mutex page_mutex;
int page;
int irq;
u8 *rx_buf;
u8 *tx_buf;
int xfer_buf_size;
@@ -326,41 +323,6 @@ static const struct rmi_transport_ops rmi_spi_ops = {
.read_block = rmi_spi_read_block,
};
static irqreturn_t rmi_spi_irq(int irq, void *dev_id)
{
struct rmi_spi_xport *rmi_spi = dev_id;
struct rmi_device *rmi_dev = rmi_spi->xport.rmi_dev;
int ret;
ret = rmi_process_interrupt_requests(rmi_dev);
if (ret)
rmi_dbg(RMI_DEBUG_XPORT, &rmi_dev->dev,
"Failed to process interrupt request: %d\n", ret);
return IRQ_HANDLED;
}
static int rmi_spi_init_irq(struct spi_device *spi)
{
struct rmi_spi_xport *rmi_spi = spi_get_drvdata(spi);
int irq_flags = irqd_get_trigger_type(irq_get_irq_data(rmi_spi->irq));
int ret;
if (!irq_flags)
irq_flags = IRQF_TRIGGER_LOW;
ret = devm_request_threaded_irq(&spi->dev, rmi_spi->irq, NULL,
rmi_spi_irq, irq_flags | IRQF_ONESHOT,
dev_name(&spi->dev), rmi_spi);
if (ret < 0) {
dev_warn(&spi->dev, "Failed to register interrupt %d\n",
rmi_spi->irq);
return ret;
}
return 0;
}
#ifdef CONFIG_OF
static int rmi_spi_of_probe(struct spi_device *spi,
struct rmi_device_platform_data *pdata)
@@ -440,8 +402,7 @@ static int rmi_spi_probe(struct spi_device *spi)
return retval;
}
if (spi->irq > 0)
rmi_spi->irq = spi->irq;
pdata->irq = spi->irq;
rmi_spi->spi = spi;
mutex_init(&rmi_spi->page_mutex);
@@ -477,10 +438,6 @@ static int rmi_spi_probe(struct spi_device *spi)
if (retval)
return retval;
retval = rmi_spi_init_irq(spi);
if (retval < 0)
return retval;
dev_info(&spi->dev, "registered RMI SPI driver\n");
return 0;
}
@@ -492,17 +449,10 @@ static int rmi_spi_suspend(struct device *dev)
struct rmi_spi_xport *rmi_spi = spi_get_drvdata(spi);
int ret;
ret = rmi_driver_suspend(rmi_spi->xport.rmi_dev);
ret = rmi_driver_suspend(rmi_spi->xport.rmi_dev, true);
if (ret)
dev_warn(dev, "Failed to resume device: %d\n", ret);
disable_irq(rmi_spi->irq);
if (device_may_wakeup(&spi->dev)) {
ret = enable_irq_wake(rmi_spi->irq);
if (!ret)
dev_warn(dev, "Failed to enable irq for wake: %d\n",
ret);
}
return ret;
}
@@ -512,15 +462,7 @@ static int rmi_spi_resume(struct device *dev)
struct rmi_spi_xport *rmi_spi = spi_get_drvdata(spi);
int ret;
enable_irq(rmi_spi->irq);
if (device_may_wakeup(&spi->dev)) {
ret = disable_irq_wake(rmi_spi->irq);
if (!ret)
dev_warn(dev, "Failed to disable irq for wake: %d\n",
ret);
}
ret = rmi_driver_resume(rmi_spi->xport.rmi_dev);
ret = rmi_driver_resume(rmi_spi->xport.rmi_dev, true);
if (ret)
dev_warn(dev, "Failed to resume device: %d\n", ret);
@@ -535,12 +477,10 @@ static int rmi_spi_runtime_suspend(struct device *dev)
struct rmi_spi_xport *rmi_spi = spi_get_drvdata(spi);
int ret;
ret = rmi_driver_suspend(rmi_spi->xport.rmi_dev);
ret = rmi_driver_suspend(rmi_spi->xport.rmi_dev, false);
if (ret)
dev_warn(dev, "Failed to resume device: %d\n", ret);
disable_irq(rmi_spi->irq);
return 0;
}
@@ -550,9 +490,7 @@ static int rmi_spi_runtime_resume(struct device *dev)
struct rmi_spi_xport *rmi_spi = spi_get_drvdata(spi);
int ret;
enable_irq(rmi_spi->irq);
ret = rmi_driver_resume(rmi_spi->xport.rmi_dev);
ret = rmi_driver_resume(rmi_spi->xport.rmi_dev, false);
if (ret)
dev_warn(dev, "Failed to resume device: %d\n", ret);