mirror of https://gitee.com/openkylin/linux.git
Input: synaptics-rmi4 - add support for F34 device reflash
Add support for updating firmware, triggered by a sysfs attribute. This patch has been tested on Synaptics S7300. Signed-off-by: Nick Dyer <nick@shmanahar.org> Tested-by: Chris Healy <cphealy@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Nick Dyer
Dmitry Torokhov
parent
792f497b22
commit
29fd0ec2bd
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@ -74,6 +74,17 @@ config RMI4_F30
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Function 30 provides GPIO and LED support for RMI4 devices. This
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includes support for buttons on TouchPads and ClickPads.
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config RMI4_F34
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bool "RMI4 Function 34 (Device reflash)"
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depends on RMI4_CORE
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select FW_LOADER
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help
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Say Y here if you want to add support for RMI4 function 34.
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Function 34 provides support for upgrading the firmware on the RMI4
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device via the firmware loader interface. This is triggered using a
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sysfs attribute.
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config RMI4_F54
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bool "RMI4 Function 54 (Analog diagnostics)"
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depends on RMI4_CORE
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@ -7,6 +7,7 @@ rmi_core-$(CONFIG_RMI4_2D_SENSOR) += rmi_2d_sensor.o
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rmi_core-$(CONFIG_RMI4_F11) += rmi_f11.o
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rmi_core-$(CONFIG_RMI4_F12) += rmi_f12.o
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rmi_core-$(CONFIG_RMI4_F30) += rmi_f30.o
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rmi_core-$(CONFIG_RMI4_F34) += rmi_f34.o
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rmi_core-$(CONFIG_RMI4_F54) += rmi_f54.o
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# Transports
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@ -315,6 +315,9 @@ static struct rmi_function_handler *fn_handlers[] = {
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#ifdef CONFIG_RMI4_F30
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&rmi_f30_handler,
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#endif
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#ifdef CONFIG_RMI4_F34
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&rmi_f34_handler,
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#endif
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#ifdef CONFIG_RMI4_F54
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&rmi_f54_handler,
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#endif
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@ -35,14 +35,24 @@
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#define RMI_DEVICE_RESET_CMD 0x01
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#define DEFAULT_RESET_DELAY_MS 100
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static void rmi_free_function_list(struct rmi_device *rmi_dev)
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void rmi_free_function_list(struct rmi_device *rmi_dev)
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{
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struct rmi_function *fn, *tmp;
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struct rmi_driver_data *data = dev_get_drvdata(&rmi_dev->dev);
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rmi_dbg(RMI_DEBUG_CORE, &rmi_dev->dev, "Freeing function list\n");
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mutex_lock(&data->irq_mutex);
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devm_kfree(&rmi_dev->dev, data->irq_memory);
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data->irq_memory = NULL;
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data->irq_status = NULL;
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data->fn_irq_bits = NULL;
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data->current_irq_mask = NULL;
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data->new_irq_mask = NULL;
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data->f01_container = NULL;
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data->f34_container = NULL;
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/* Doing it in the reverse order so F01 will be removed last */
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list_for_each_entry_safe_reverse(fn, tmp,
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@ -50,7 +60,10 @@ static void rmi_free_function_list(struct rmi_device *rmi_dev)
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list_del(&fn->node);
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rmi_unregister_function(fn);
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}
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mutex_unlock(&data->irq_mutex);
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}
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EXPORT_SYMBOL_GPL(rmi_free_function_list);
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static int reset_one_function(struct rmi_function *fn)
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{
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@ -147,24 +160,25 @@ static int rmi_process_interrupt_requests(struct rmi_device *rmi_dev)
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if (!data)
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return 0;
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mutex_lock(&data->irq_mutex);
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if (!data->irq_status || !data->f01_container) {
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mutex_unlock(&data->irq_mutex);
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return 0;
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}
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if (!rmi_dev->xport->attn_data) {
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error = rmi_read_block(rmi_dev,
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data->f01_container->fd.data_base_addr + 1,
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data->irq_status, data->num_of_irq_regs);
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if (error < 0) {
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dev_err(dev, "Failed to read irqs, code=%d\n", error);
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mutex_unlock(&data->irq_mutex);
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return error;
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}
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}
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mutex_lock(&data->irq_mutex);
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bitmap_and(data->irq_status, data->irq_status, data->current_irq_mask,
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data->irq_count);
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/*
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* At this point, irq_status has all bits that are set in the
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* interrupt status register and are enabled.
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*/
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mutex_unlock(&data->irq_mutex);
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/*
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* It would be nice to be able to use irq_chip to handle these
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@ -180,6 +194,8 @@ static int rmi_process_interrupt_requests(struct rmi_device *rmi_dev)
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if (data->input)
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input_sync(data->input);
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mutex_unlock(&data->irq_mutex);
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return 0;
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}
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@ -244,12 +260,18 @@ static int rmi_suspend_functions(struct rmi_device *rmi_dev)
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struct rmi_function *entry;
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int retval;
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mutex_lock(&data->irq_mutex);
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list_for_each_entry(entry, &data->function_list, node) {
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retval = suspend_one_function(entry);
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if (retval < 0)
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if (retval < 0) {
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mutex_unlock(&data->irq_mutex);
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return retval;
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}
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}
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mutex_unlock(&data->irq_mutex);
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return 0;
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}
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@ -278,16 +300,22 @@ static int rmi_resume_functions(struct rmi_device *rmi_dev)
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struct rmi_function *entry;
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int retval;
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mutex_lock(&data->irq_mutex);
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list_for_each_entry(entry, &data->function_list, node) {
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retval = resume_one_function(entry);
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if (retval < 0)
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if (retval < 0) {
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mutex_unlock(&data->irq_mutex);
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return retval;
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}
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}
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mutex_unlock(&data->irq_mutex);
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return 0;
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}
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static int enable_sensor(struct rmi_device *rmi_dev)
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int rmi_enable_sensor(struct rmi_device *rmi_dev)
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{
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int retval = 0;
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@ -297,6 +325,7 @@ static int enable_sensor(struct rmi_device *rmi_dev)
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return rmi_process_interrupt_requests(rmi_dev);
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}
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EXPORT_SYMBOL_GPL(rmi_enable_sensor);
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/**
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* rmi_driver_set_input_params - set input device id and other data.
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@ -502,10 +531,9 @@ static int rmi_scan_pdt_page(struct rmi_device *rmi_dev,
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RMI_SCAN_DONE : RMI_SCAN_CONTINUE;
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}
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static int rmi_scan_pdt(struct rmi_device *rmi_dev, void *ctx,
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int (*callback)(struct rmi_device *rmi_dev,
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void *ctx,
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const struct pdt_entry *entry))
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int rmi_scan_pdt(struct rmi_device *rmi_dev, void *ctx,
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int (*callback)(struct rmi_device *rmi_dev,
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void *ctx, const struct pdt_entry *entry))
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{
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int page;
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int empty_pages = 0;
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@ -520,6 +548,7 @@ static int rmi_scan_pdt(struct rmi_device *rmi_dev, void *ctx,
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return retval < 0 ? retval : 0;
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}
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EXPORT_SYMBOL_GPL(rmi_scan_pdt);
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int rmi_read_register_desc(struct rmi_device *d, u16 addr,
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struct rmi_register_descriptor *rdesc)
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@ -740,19 +769,15 @@ static int rmi_count_irqs(struct rmi_device *rmi_dev,
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int *irq_count = ctx;
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*irq_count += pdt->interrupt_source_count;
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if (pdt->function_number == 0x01) {
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if (pdt->function_number == 0x01)
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data->f01_bootloader_mode =
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rmi_check_bootloader_mode(rmi_dev, pdt);
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if (data->f01_bootloader_mode)
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dev_warn(&rmi_dev->dev,
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"WARNING: RMI4 device is in bootloader mode!\n");
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}
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return RMI_SCAN_CONTINUE;
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}
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static int rmi_initial_reset(struct rmi_device *rmi_dev,
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void *ctx, const struct pdt_entry *pdt)
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int rmi_initial_reset(struct rmi_device *rmi_dev, void *ctx,
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const struct pdt_entry *pdt)
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{
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int error;
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@ -787,6 +812,7 @@ static int rmi_initial_reset(struct rmi_device *rmi_dev,
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/* F01 should always be on page 0. If we don't find it there, fail. */
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return pdt->page_start == 0 ? RMI_SCAN_CONTINUE : -ENODEV;
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}
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EXPORT_SYMBOL_GPL(rmi_initial_reset);
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static int rmi_create_function(struct rmi_device *rmi_dev,
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void *ctx, const struct pdt_entry *pdt)
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@ -828,6 +854,8 @@ static int rmi_create_function(struct rmi_device *rmi_dev,
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if (pdt->function_number == 0x01)
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data->f01_container = fn;
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else if (pdt->function_number == 0x34)
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data->f34_container = fn;
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list_add_tail(&fn->node, &data->function_list);
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@ -893,6 +921,7 @@ static int rmi_driver_remove(struct device *dev)
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disable_irq(irq);
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rmi_f34_remove_sysfs(rmi_dev);
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rmi_free_function_list(rmi_dev);
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return 0;
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@ -919,13 +948,12 @@ static inline int rmi_driver_of_probe(struct device *dev,
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}
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#endif
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static int rmi_probe_interrupts(struct rmi_driver_data *data)
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int rmi_probe_interrupts(struct rmi_driver_data *data)
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{
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struct rmi_device *rmi_dev = data->rmi_dev;
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struct device *dev = &rmi_dev->dev;
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int irq_count;
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size_t size;
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void *irq_memory;
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int retval;
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/*
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@ -941,31 +969,38 @@ static int rmi_probe_interrupts(struct rmi_driver_data *data)
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dev_err(dev, "IRQ counting failed with code %d.\n", retval);
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return retval;
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}
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if (data->f01_bootloader_mode)
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dev_warn(&rmi_dev->dev, "Device in bootloader mode.\n");
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data->irq_count = irq_count;
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data->num_of_irq_regs = (data->irq_count + 7) / 8;
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size = BITS_TO_LONGS(data->irq_count) * sizeof(unsigned long);
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irq_memory = devm_kzalloc(dev, size * 4, GFP_KERNEL);
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if (!irq_memory) {
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data->irq_memory = devm_kzalloc(dev, size * 4, GFP_KERNEL);
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if (!data->irq_memory) {
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dev_err(dev, "Failed to allocate memory for irq masks.\n");
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return retval;
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}
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data->irq_status = irq_memory + size * 0;
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data->fn_irq_bits = irq_memory + size * 1;
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data->current_irq_mask = irq_memory + size * 2;
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data->new_irq_mask = irq_memory + size * 3;
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data->irq_status = data->irq_memory + size * 0;
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data->fn_irq_bits = data->irq_memory + size * 1;
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data->current_irq_mask = data->irq_memory + size * 2;
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data->new_irq_mask = data->irq_memory + size * 3;
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return retval;
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}
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EXPORT_SYMBOL_GPL(rmi_probe_interrupts);
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static int rmi_init_functions(struct rmi_driver_data *data)
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int rmi_init_functions(struct rmi_driver_data *data)
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{
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struct rmi_device *rmi_dev = data->rmi_dev;
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struct device *dev = &rmi_dev->dev;
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int irq_count;
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int retval;
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mutex_lock(&data->irq_mutex);
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irq_count = 0;
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rmi_dbg(RMI_DEBUG_CORE, dev, "%s: Creating functions.\n", __func__);
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retval = rmi_scan_pdt(rmi_dev, &irq_count, rmi_create_function);
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@ -990,12 +1025,16 @@ static int rmi_init_functions(struct rmi_driver_data *data)
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goto err_destroy_functions;
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}
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mutex_unlock(&data->irq_mutex);
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return 0;
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err_destroy_functions:
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rmi_free_function_list(rmi_dev);
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mutex_unlock(&data->irq_mutex);
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return retval;
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}
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EXPORT_SYMBOL_GPL(rmi_init_functions);
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static int rmi_driver_probe(struct device *dev)
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{
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@ -1100,6 +1139,10 @@ static int rmi_driver_probe(struct device *dev)
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if (retval)
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goto err;
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retval = rmi_f34_create_sysfs(rmi_dev);
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if (retval)
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goto err;
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if (data->input) {
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rmi_driver_set_input_name(rmi_dev, data->input);
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if (!rmi_dev->xport->input) {
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@ -1117,7 +1160,7 @@ static int rmi_driver_probe(struct device *dev)
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if (data->f01_container->dev.driver)
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/* Driver already bound, so enable ATTN now. */
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return enable_sensor(rmi_dev);
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return rmi_enable_sensor(rmi_dev);
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return 0;
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@ -95,12 +95,36 @@ bool rmi_register_desc_has_subpacket(const struct rmi_register_desc_item *item,
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bool rmi_is_physical_driver(struct device_driver *);
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int rmi_register_physical_driver(void);
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void rmi_unregister_physical_driver(void);
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void rmi_free_function_list(struct rmi_device *rmi_dev);
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int rmi_enable_sensor(struct rmi_device *rmi_dev);
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int rmi_scan_pdt(struct rmi_device *rmi_dev, void *ctx,
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int (*callback)(struct rmi_device *rmi_dev, void *ctx,
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const struct pdt_entry *entry));
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int rmi_probe_interrupts(struct rmi_driver_data *data);
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int rmi_init_functions(struct rmi_driver_data *data);
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int rmi_initial_reset(struct rmi_device *rmi_dev, void *ctx,
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const struct pdt_entry *pdt);
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char *rmi_f01_get_product_ID(struct rmi_function *fn);
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#ifdef CONFIG_RMI4_F34
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int rmi_f34_create_sysfs(struct rmi_device *rmi_dev);
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void rmi_f34_remove_sysfs(struct rmi_device *rmi_dev);
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#else
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static inline int rmi_f34_create_sysfs(struct rmi_device *rmi_dev)
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{
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return 0;
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}
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static inline void rmi_f34_remove_sysfs(struct rmi_device *rmi_dev)
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{
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}
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#endif /* CONFIG_RMI_F34 */
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extern struct rmi_function_handler rmi_f01_handler;
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extern struct rmi_function_handler rmi_f11_handler;
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extern struct rmi_function_handler rmi_f12_handler;
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extern struct rmi_function_handler rmi_f30_handler;
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extern struct rmi_function_handler rmi_f34_handler;
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extern struct rmi_function_handler rmi_f54_handler;
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#endif
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@ -63,6 +63,8 @@ struct f01_basic_properties {
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#define RMI_F01_STATUS_CODE(status) ((status) & 0x0f)
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/* The device has lost its configuration for some reason. */
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#define RMI_F01_STATUS_UNCONFIGURED(status) (!!((status) & 0x80))
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/* The device is in bootloader mode */
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#define RMI_F01_STATUS_BOOTLOADER(status) ((status) & 0x40)
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/* Control register bits */
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@ -594,6 +596,10 @@ static int rmi_f01_attention(struct rmi_function *fn,
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return error;
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}
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if (RMI_F01_STATUS_BOOTLOADER(device_status))
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dev_warn(&fn->dev,
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"Device in bootloader mode, please update firmware\n");
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if (RMI_F01_STATUS_UNCONFIGURED(device_status)) {
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dev_warn(&fn->dev, "Device reset detected.\n");
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error = rmi_dev->driver->reset_handler(rmi_dev);
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@ -0,0 +1,481 @@
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/*
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* Copyright (c) 2007-2016, Synaptics Incorporated
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* Copyright (C) 2016 Zodiac Inflight Innovations
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
|
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* the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/rmi.h>
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#include <linux/firmware.h>
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#include <asm/unaligned.h>
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#include <asm/unaligned.h>
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#include "rmi_driver.h"
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#include "rmi_f34.h"
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static int rmi_f34_write_bootloader_id(struct f34_data *f34)
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{
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struct rmi_function *fn = f34->fn;
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struct rmi_device *rmi_dev = fn->rmi_dev;
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u8 bootloader_id[F34_BOOTLOADER_ID_LEN];
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int ret;
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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;
|
||||
|
||||
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 device *dev = &data->rmi_dev->dev;
|
||||
struct f34_data *f34;
|
||||
int ret;
|
||||
|
||||
if (!data->f34_container) {
|
||||
dev_warn(dev, "%s: No F34 present!\n", __func__);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* Only version 0 currently supported */
|
||||
if (data->f34_container->fd.function_version != 0) {
|
||||
dev_warn(dev, "F34 V%d not supported!\n",
|
||||
data->f34_container->fd.function_version);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
f34 = dev_get_drvdata(&data->f34_container->dev);
|
||||
|
||||
/* Enter flash mode */
|
||||
ret = rmi_f34_enable_flash(f34);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/* Tear down functions and re-probe */
|
||||
rmi_free_function_list(data->rmi_dev);
|
||||
|
||||
ret = rmi_probe_interrupts(data);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = rmi_init_functions(data);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
if (!data->f01_bootloader_mode || !data->f34_container) {
|
||||
dev_warn(dev, "%s: No F34 present or not in bootloader!\n",
|
||||
__func__);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
f34 = dev_get_drvdata(&data->f34_container->dev);
|
||||
|
||||
/* Perform firmware update */
|
||||
ret = rmi_f34_update_firmware(f34, fw);
|
||||
|
||||
dev_info(&f34->fn->dev, "Firmware update complete, status:%d\n", ret);
|
||||
|
||||
/* Re-probe */
|
||||
rmi_dbg(RMI_DEBUG_FN, dev, "Re-probing device\n");
|
||||
rmi_free_function_list(data->rmi_dev);
|
||||
|
||||
ret = rmi_scan_pdt(data->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;
|
||||
|
||||
if (data->f01_container->dev.driver)
|
||||
/* Driver already bound, so enable ATTN now. */
|
||||
return rmi_enable_sensor(data->rmi_dev);
|
||||
|
||||
rmi_dbg(RMI_DEBUG_FN, dev, "%s complete\n", __func__);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
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;
|
||||
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);
|
||||
|
||||
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,
|
||||
};
|
||||
|
|
@ -0,0 +1,68 @@
|
|||
/*
|
||||
* 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
|
||||
|
||||
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 f34_data {
|
||||
struct rmi_function *fn;
|
||||
|
||||
unsigned char bootloader_id[5];
|
||||
unsigned char configuration_id[9];
|
||||
|
||||
struct f34v5_data v5;
|
||||
};
|
||||
|
||||
#endif /* _RMI_F34_H */
|
||||
|
|
@ -337,11 +337,13 @@ struct rmi_driver_data {
|
|||
struct rmi_device *rmi_dev;
|
||||
|
||||
struct rmi_function *f01_container;
|
||||
struct rmi_function *f34_container;
|
||||
bool f01_bootloader_mode;
|
||||
|
||||
u32 attn_count;
|
||||
int num_of_irq_regs;
|
||||
int irq_count;
|
||||
void *irq_memory;
|
||||
unsigned long *irq_status;
|
||||
unsigned long *fn_irq_bits;
|
||||
unsigned long *current_irq_mask;
|
||||
|
|
|
|||
Loading…
Reference in New Issue