diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hid/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/hid/hid-rmi.c | 974 |
2 files changed, 146 insertions, 833 deletions
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 4070b7386e9d..1aeb80e52424 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -785,6 +785,11 @@ config HID_SUNPLUS config HID_RMI tristate "Synaptics RMI4 device support" depends on HID + select RMI4_CORE + select RMI4_F03 + select RMI4_F11 + select RMI4_F12 + select RMI4_F30 ---help--- Support for Synaptics RMI4 touchpads. Say Y here if you have a Synaptics RMI4 touchpads over i2c-hid or usbhid diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c index be89bcbf6a71..8056edd165f9 100644 --- a/drivers/hid/hid-rmi.c +++ b/drivers/hid/hid-rmi.c @@ -14,11 +14,14 @@ #include <linux/hid.h> #include <linux/input.h> #include <linux/input/mt.h> +#include <linux/irq.h> +#include <linux/irqdomain.h> #include <linux/module.h> #include <linux/pm.h> #include <linux/slab.h> #include <linux/wait.h> #include <linux/sched.h> +#include <linux/rmi.h> #include "hid-ids.h" #define RMI_MOUSE_REPORT_ID 0x01 /* Mouse emulation Report */ @@ -33,9 +36,6 @@ #define RMI_READ_DATA_PENDING 1 #define RMI_STARTED 2 -#define RMI_SLEEP_NORMAL 0x0 -#define RMI_SLEEP_DEEP_SLEEP 0x1 - /* device flags */ #define RMI_DEVICE BIT(0) #define RMI_DEVICE_HAS_PHYS_BUTTONS BIT(1) @@ -54,25 +54,12 @@ enum rmi_mode_type { RMI_MODE_NO_PACKED_ATTN_REPORTS = 2, }; -struct rmi_function { - unsigned page; /* page of the function */ - u16 query_base_addr; /* base address for queries */ - u16 command_base_addr; /* base address for commands */ - u16 control_base_addr; /* base address for controls */ - u16 data_base_addr; /* base address for datas */ - unsigned int interrupt_base; /* cross-function interrupt number - * (uniq in the device)*/ - unsigned int interrupt_count; /* number of interrupts */ - unsigned int report_size; /* size of a report */ - unsigned long irq_mask; /* mask of the interrupts - * (to be applied against ATTN IRQ) */ -}; - /** * struct rmi_data - stores information for hid communication * * @page_mutex: Locks current page to avoid changing pages in unexpected ways. * @page: Keeps track of the current virtual page + * @xport: transport device to be registered with the RMI4 core. * * @wait: Used for waiting for read data * @@ -84,26 +71,18 @@ struct rmi_function { * * @flags: flags for the current device (started, reading, etc...) * - * @f11: placeholder of internal RMI function F11 description - * @f30: placeholder of internal RMI function F30 description - * - * @max_fingers: maximum finger count reported by the device - * @max_x: maximum x value reported by the device - * @max_y: maximum y value reported by the device - * - * @gpio_led_count: count of GPIOs + LEDs reported by F30 - * @button_count: actual physical buttons count - * @button_mask: button mask used to decode GPIO ATTN reports - * @button_state_mask: pull state of the buttons - * - * @input: pointer to the kernel input device - * * @reset_work: worker which will be called in case of a mouse report * @hdev: pointer to the struct hid_device + * + * @device_flags: flags which describe the device + * + * @domain: the IRQ domain allocated for this RMI4 device + * @rmi_irq: the irq that will be used to generate events to rmi-core */ struct rmi_data { struct mutex page_mutex; int page; + struct rmi_transport_dev xport; wait_queue_head_t wait; @@ -115,34 +94,13 @@ struct rmi_data { unsigned long flags; - struct rmi_function f01; - struct rmi_function f11; - struct rmi_function f30; - - unsigned int max_fingers; - unsigned int max_x; - unsigned int max_y; - unsigned int x_size_mm; - unsigned int y_size_mm; - bool read_f11_ctrl_regs; - u8 f11_ctrl_regs[RMI_F11_CTRL_REG_COUNT]; - - unsigned int gpio_led_count; - unsigned int button_count; - unsigned long button_mask; - unsigned long button_state_mask; - - struct input_dev *input; - struct work_struct reset_work; struct hid_device *hdev; unsigned long device_flags; - unsigned long firmware_id; - u8 f01_ctrl0; - u8 interrupt_enable_mask; - bool restore_interrupt_mask; + struct irq_domain *domain; + int rmi_irq; }; #define RMI_PAGE(addr) (((addr) >> 8) & 0xff) @@ -220,10 +178,11 @@ static int rmi_write_report(struct hid_device *hdev, u8 *report, int len) return ret; } -static int rmi_read_block(struct hid_device *hdev, u16 addr, void *buf, - const int len) +static int rmi_hid_read_block(struct rmi_transport_dev *xport, u16 addr, + void *buf, size_t len) { - struct rmi_data *data = hid_get_drvdata(hdev); + struct rmi_data *data = container_of(xport, struct rmi_data, xport); + struct hid_device *hdev = data->hdev; int ret; int bytes_read; int bytes_needed; @@ -292,15 +251,11 @@ exit: return ret; } -static inline int rmi_read(struct hid_device *hdev, u16 addr, void *buf) -{ - return rmi_read_block(hdev, addr, buf, 1); -} - -static int rmi_write_block(struct hid_device *hdev, u16 addr, void *buf, - const int len) +static int rmi_hid_write_block(struct rmi_transport_dev *xport, u16 addr, + const void *buf, size_t len) { - struct rmi_data *data = hid_get_drvdata(hdev); + struct rmi_data *data = container_of(xport, struct rmi_data, xport); + struct hid_device *hdev = data->hdev; int ret; mutex_lock(&data->page_mutex); @@ -332,62 +287,20 @@ exit: return ret; } -static inline int rmi_write(struct hid_device *hdev, u16 addr, void *buf) -{ - return rmi_write_block(hdev, addr, buf, 1); -} - -static void rmi_f11_process_touch(struct rmi_data *hdata, int slot, - u8 finger_state, u8 *touch_data) -{ - int x, y, wx, wy; - int wide, major, minor; - int z; - - input_mt_slot(hdata->input, slot); - input_mt_report_slot_state(hdata->input, MT_TOOL_FINGER, - finger_state == 0x01); - if (finger_state == 0x01) { - x = (touch_data[0] << 4) | (touch_data[2] & 0x0F); - y = (touch_data[1] << 4) | (touch_data[2] >> 4); - wx = touch_data[3] & 0x0F; - wy = touch_data[3] >> 4; - wide = (wx > wy); - major = max(wx, wy); - minor = min(wx, wy); - z = touch_data[4]; - - /* y is inverted */ - y = hdata->max_y - y; - - input_event(hdata->input, EV_ABS, ABS_MT_POSITION_X, x); - input_event(hdata->input, EV_ABS, ABS_MT_POSITION_Y, y); - input_event(hdata->input, EV_ABS, ABS_MT_ORIENTATION, wide); - input_event(hdata->input, EV_ABS, ABS_MT_PRESSURE, z); - input_event(hdata->input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); - input_event(hdata->input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); - } -} - static int rmi_reset_attn_mode(struct hid_device *hdev) { struct rmi_data *data = hid_get_drvdata(hdev); + struct rmi_device *rmi_dev = data->xport.rmi_dev; int ret; ret = rmi_set_mode(hdev, RMI_MODE_ATTN_REPORTS); if (ret) return ret; - if (data->restore_interrupt_mask) { - ret = rmi_write(hdev, data->f01.control_base_addr + 1, - &data->interrupt_enable_mask); - if (ret) { - hid_err(hdev, "can not write F01 control register\n"); - return ret; - } - } + if (test_bit(RMI_STARTED, &data->flags)) + ret = rmi_dev->driver->reset_handler(rmi_dev); - return 0; + return ret; } static void rmi_reset_work(struct work_struct *work) @@ -399,102 +312,22 @@ static void rmi_reset_work(struct work_struct *work) rmi_reset_attn_mode(hdata->hdev); } -static inline int rmi_schedule_reset(struct hid_device *hdev) -{ - struct rmi_data *hdata = hid_get_drvdata(hdev); - return schedule_work(&hdata->reset_work); -} - -static int rmi_f11_input_event(struct hid_device *hdev, u8 irq, u8 *data, - int size) -{ - struct rmi_data *hdata = hid_get_drvdata(hdev); - int offset; - int i; - - if (!(irq & hdata->f11.irq_mask) || size <= 0) - return 0; - - offset = (hdata->max_fingers >> 2) + 1; - for (i = 0; i < hdata->max_fingers; i++) { - int fs_byte_position = i >> 2; - int fs_bit_position = (i & 0x3) << 1; - int finger_state = (data[fs_byte_position] >> fs_bit_position) & - 0x03; - int position = offset + 5 * i; - - if (position + 5 > size) { - /* partial report, go on with what we received */ - printk_once(KERN_WARNING - "%s %s: Detected incomplete finger report. Finger reports may occasionally get dropped on this platform.\n", - dev_driver_string(&hdev->dev), - dev_name(&hdev->dev)); - hid_dbg(hdev, "Incomplete finger report\n"); - break; - } - - rmi_f11_process_touch(hdata, i, finger_state, &data[position]); - } - input_mt_sync_frame(hdata->input); - input_sync(hdata->input); - return hdata->f11.report_size; -} - -static int rmi_f30_input_event(struct hid_device *hdev, u8 irq, u8 *data, - int size) +static int rmi_input_event(struct hid_device *hdev, u8 *data, int size) { struct rmi_data *hdata = hid_get_drvdata(hdev); - int i; - int button = 0; - bool value; + struct rmi_device *rmi_dev = hdata->xport.rmi_dev; + unsigned long flags; - if (!(irq & hdata->f30.irq_mask)) + if (!(test_bit(RMI_STARTED, &hdata->flags))) return 0; - if (size < (int)hdata->f30.report_size) { - hid_warn(hdev, "Click Button pressed, but the click data is missing\n"); - return 0; - } + local_irq_save(flags); - for (i = 0; i < hdata->gpio_led_count; i++) { - if (test_bit(i, &hdata->button_mask)) { - value = (data[i / 8] >> (i & 0x07)) & BIT(0); - if (test_bit(i, &hdata->button_state_mask)) - value = !value; - input_event(hdata->input, EV_KEY, BTN_LEFT + button++, - value); - } - } - return hdata->f30.report_size; -} - -static int rmi_input_event(struct hid_device *hdev, u8 *data, int size) -{ - struct rmi_data *hdata = hid_get_drvdata(hdev); - unsigned long irq_mask = 0; - unsigned index = 2; + rmi_set_attn_data(rmi_dev, data[1], &data[2], size - 2); - if (!(test_bit(RMI_STARTED, &hdata->flags))) - return 0; + generic_handle_irq(hdata->rmi_irq); - irq_mask |= hdata->f11.irq_mask; - irq_mask |= hdata->f30.irq_mask; - - if (data[1] & ~irq_mask) - hid_dbg(hdev, "unknown intr source:%02lx %s:%d\n", - data[1] & ~irq_mask, __FILE__, __LINE__); - - if (hdata->f11.interrupt_base < hdata->f30.interrupt_base) { - index += rmi_f11_input_event(hdev, data[1], &data[index], - size - index); - index += rmi_f30_input_event(hdev, data[1], &data[index], - size - index); - } else { - index += rmi_f30_input_event(hdev, data[1], &data[index], - size - index); - index += rmi_f11_input_event(hdev, data[1], &data[index], - size - index); - } + local_irq_restore(flags); return 1; } @@ -568,7 +401,7 @@ static int rmi_event(struct hid_device *hdev, struct hid_field *field, return 1; } - rmi_schedule_reset(hdev); + schedule_work(&data->reset_work); return 1; } @@ -576,637 +409,71 @@ static int rmi_event(struct hid_device *hdev, struct hid_field *field, } #ifdef CONFIG_PM -static int rmi_set_sleep_mode(struct hid_device *hdev, int sleep_mode) -{ - struct rmi_data *data = hid_get_drvdata(hdev); - int ret; - u8 f01_ctrl0; - - f01_ctrl0 = (data->f01_ctrl0 & ~0x3) | sleep_mode; - - ret = rmi_write(hdev, data->f01.control_base_addr, - &f01_ctrl0); - if (ret) { - hid_err(hdev, "can not write sleep mode\n"); - return ret; - } - - return 0; -} - static int rmi_suspend(struct hid_device *hdev, pm_message_t message) { struct rmi_data *data = hid_get_drvdata(hdev); - int ret; - u8 buf[RMI_F11_CTRL_REG_COUNT]; - - if (!(data->device_flags & RMI_DEVICE)) - return 0; - - ret = rmi_read_block(hdev, data->f11.control_base_addr, buf, - RMI_F11_CTRL_REG_COUNT); - if (ret) - hid_warn(hdev, "can not read F11 control registers\n"); - else - memcpy(data->f11_ctrl_regs, buf, RMI_F11_CTRL_REG_COUNT); - - - if (!device_may_wakeup(hdev->dev.parent)) - return rmi_set_sleep_mode(hdev, RMI_SLEEP_DEEP_SLEEP); - - return 0; -} - -static int rmi_post_reset(struct hid_device *hdev) -{ - struct rmi_data *data = hid_get_drvdata(hdev); + struct rmi_device *rmi_dev = data->xport.rmi_dev; int ret; if (!(data->device_flags & RMI_DEVICE)) return 0; - ret = rmi_reset_attn_mode(hdev); + ret = rmi_driver_suspend(rmi_dev, false); if (ret) { - hid_err(hdev, "can not set rmi mode\n"); + hid_warn(hdev, "Failed to suspend device: %d\n", ret); return ret; } - if (data->read_f11_ctrl_regs) { - ret = rmi_write_block(hdev, data->f11.control_base_addr, - data->f11_ctrl_regs, RMI_F11_CTRL_REG_COUNT); - if (ret) - hid_warn(hdev, - "can not write F11 control registers after reset\n"); - } - - if (!device_may_wakeup(hdev->dev.parent)) { - ret = rmi_set_sleep_mode(hdev, RMI_SLEEP_NORMAL); - if (ret) { - hid_err(hdev, "can not write sleep mode\n"); - return ret; - } - } - - return ret; + return 0; } static int rmi_post_resume(struct hid_device *hdev) { struct rmi_data *data = hid_get_drvdata(hdev); + struct rmi_device *rmi_dev = data->xport.rmi_dev; + int ret; if (!(data->device_flags & RMI_DEVICE)) return 0; - return rmi_reset_attn_mode(hdev); -} -#endif /* CONFIG_PM */ - -#define RMI4_MAX_PAGE 0xff -#define RMI4_PAGE_SIZE 0x0100 - -#define PDT_START_SCAN_LOCATION 0x00e9 -#define PDT_END_SCAN_LOCATION 0x0005 -#define RMI4_END_OF_PDT(id) ((id) == 0x00 || (id) == 0xff) - -struct pdt_entry { - u8 query_base_addr:8; - u8 command_base_addr:8; - u8 control_base_addr:8; - u8 data_base_addr:8; - u8 interrupt_source_count:3; - u8 bits3and4:2; - u8 function_version:2; - u8 bit7:1; - u8 function_number:8; -} __attribute__((__packed__)); - -static inline unsigned long rmi_gen_mask(unsigned irq_base, unsigned irq_count) -{ - return GENMASK(irq_count + irq_base - 1, irq_base); -} - -static void rmi_register_function(struct rmi_data *data, - struct pdt_entry *pdt_entry, int page, unsigned interrupt_count) -{ - struct rmi_function *f = NULL; - u16 page_base = page << 8; - - switch (pdt_entry->function_number) { - case 0x01: - f = &data->f01; - break; - case 0x11: - f = &data->f11; - break; - case 0x30: - f = &data->f30; - break; - } - - if (f) { - f->page = page; - f->query_base_addr = page_base | pdt_entry->query_base_addr; - f->command_base_addr = page_base | pdt_entry->command_base_addr; - f->control_base_addr = page_base | pdt_entry->control_base_addr; - f->data_base_addr = page_base | pdt_entry->data_base_addr; - f->interrupt_base = interrupt_count; - f->interrupt_count = pdt_entry->interrupt_source_count; - f->irq_mask = rmi_gen_mask(f->interrupt_base, - f->interrupt_count); - data->interrupt_enable_mask |= f->irq_mask; - } -} - -static int rmi_scan_pdt(struct hid_device *hdev) -{ - struct rmi_data *data = hid_get_drvdata(hdev); - struct pdt_entry entry; - int page; - bool page_has_function; - int i; - int retval; - int interrupt = 0; - u16 page_start, pdt_start , pdt_end; - - hid_info(hdev, "Scanning PDT...\n"); - - for (page = 0; (page <= RMI4_MAX_PAGE); page++) { - page_start = RMI4_PAGE_SIZE * page; - pdt_start = page_start + PDT_START_SCAN_LOCATION; - pdt_end = page_start + PDT_END_SCAN_LOCATION; - - page_has_function = false; - for (i = pdt_start; i >= pdt_end; i -= sizeof(entry)) { - retval = rmi_read_block(hdev, i, &entry, sizeof(entry)); - if (retval) { - hid_err(hdev, - "Read of PDT entry at %#06x failed.\n", - i); - goto error_exit; - } - - if (RMI4_END_OF_PDT(entry.function_number)) - break; - - page_has_function = true; - - hid_info(hdev, "Found F%02X on page %#04x\n", - entry.function_number, page); - - rmi_register_function(data, &entry, page, interrupt); - interrupt += entry.interrupt_source_count; - } - - if (!page_has_function) - break; - } - - hid_info(hdev, "%s: Done with PDT scan.\n", __func__); - retval = 0; - -error_exit: - return retval; -} - -#define RMI_DEVICE_F01_BASIC_QUERY_LEN 11 - -static int rmi_populate_f01(struct hid_device *hdev) -{ - struct rmi_data *data = hid_get_drvdata(hdev); - u8 basic_queries[RMI_DEVICE_F01_BASIC_QUERY_LEN]; - u8 info[3]; - int ret; - bool has_query42; - bool has_lts; - bool has_sensor_id; - bool has_ds4_queries = false; - bool has_build_id_query = false; - bool has_package_id_query = false; - u16 query_offset = data->f01.query_base_addr; - u16 prod_info_addr; - u8 ds4_query_len; - - ret = rmi_read_block(hdev, query_offset, basic_queries, - RMI_DEVICE_F01_BASIC_QUERY_LEN); - if (ret) { - hid_err(hdev, "Can not read basic queries from Function 0x1.\n"); - return ret; - } - - has_lts = !!(basic_queries[0] & BIT(2)); - has_sensor_id = !!(basic_queries[1] & BIT(3)); - has_query42 = !!(basic_queries[1] & BIT(7)); - - query_offset += 11; - prod_info_addr = query_offset + 6; - query_offset += 10; - - if (has_lts) - query_offset += 20; - - if (has_sensor_id) - query_offset++; - - if (has_query42) { - ret = rmi_read(hdev, query_offset, info); - if (ret) { - hid_err(hdev, "Can not read query42.\n"); - return ret; - } - has_ds4_queries = !!(info[0] & BIT(0)); - query_offset++; - } - - if (has_ds4_queries) { - ret = rmi_read(hdev, query_offset, &ds4_query_len); - if (ret) { - hid_err(hdev, "Can not read DS4 Query length.\n"); - return ret; - } - query_offset++; - - if (ds4_query_len > 0) { - ret = rmi_read(hdev, query_offset, info); - if (ret) { - hid_err(hdev, "Can not read DS4 query.\n"); - return ret; - } - - has_package_id_query = !!(info[0] & BIT(0)); - has_build_id_query = !!(info[0] & BIT(1)); - } - } - - if (has_package_id_query) - prod_info_addr++; - - if (has_build_id_query) { - ret = rmi_read_block(hdev, prod_info_addr, info, 3); - if (ret) { - hid_err(hdev, "Can not read product info.\n"); - return ret; - } - - data->firmware_id = info[1] << 8 | info[0]; - data->firmware_id += info[2] * 65536; - } - - ret = rmi_read_block(hdev, data->f01.control_base_addr, info, - 2); - - if (ret) { - hid_err(hdev, "can not read f01 ctrl registers\n"); - return ret; - } - - data->f01_ctrl0 = info[0]; - - if (!info[1]) { - /* - * Do to a firmware bug in some touchpads the F01 interrupt - * enable control register will be cleared on reset. - * This will stop the touchpad from reporting data, so - * if F01 CTRL1 is 0 then we need to explicitly enable - * interrupts for the functions we want data for. - */ - data->restore_interrupt_mask = true; - - ret = rmi_write(hdev, data->f01.control_base_addr + 1, - &data->interrupt_enable_mask); - if (ret) { - hid_err(hdev, "can not write to control reg 1: %d.\n", - ret); - return ret; - } - } - - return 0; -} - -static int rmi_populate_f11(struct hid_device *hdev) -{ - struct rmi_data *data = hid_get_drvdata(hdev); - u8 buf[20]; - int ret; - bool has_query9; - bool has_query10 = false; - bool has_query11; - bool has_query12; - bool has_query27; - bool has_query28; - bool has_query36 = false; - bool has_physical_props; - bool has_gestures; - bool has_rel; - bool has_data40 = false; - bool has_dribble = false; - bool has_palm_detect = false; - unsigned x_size, y_size; - u16 query_offset; - - if (!data->f11.query_base_addr) { - hid_err(hdev, "No 2D sensor found, giving up.\n"); - return -ENODEV; - } - - /* query 0 contains some useful information */ - ret = rmi_read(hdev, data->f11.query_base_addr, buf); - if (ret) { - hid_err(hdev, "can not get query 0: %d.\n", ret); - return ret; - } - has_query9 = !!(buf[0] & BIT(3)); - has_query11 = !!(buf[0] & BIT(4)); - has_query12 = !!(buf[0] & BIT(5)); - has_query27 = !!(buf[0] & BIT(6)); - has_query28 = !!(buf[0] & BIT(7)); - - /* query 1 to get the max number of fingers */ - ret = rmi_read(hdev, data->f11.query_base_addr + 1, buf); - if (ret) { - hid_err(hdev, "can not get NumberOfFingers: %d.\n", ret); - return ret; - } - data->max_fingers = (buf[0] & 0x07) + 1; - if (data->max_fingers > 5) - data->max_fingers = 10; - - data->f11.report_size = data->max_fingers * 5 + - DIV_ROUND_UP(data->max_fingers, 4); - - if (!(buf[0] & BIT(4))) { - hid_err(hdev, "No absolute events, giving up.\n"); - return -ENODEV; - } - - has_rel = !!(buf[0] & BIT(3)); - has_gestures = !!(buf[0] & BIT(5)); - - ret = rmi_read(hdev, data->f11.query_base_addr + 5, buf); - if (ret) { - hid_err(hdev, "can not get absolute data sources: %d.\n", ret); + ret = rmi_reset_attn_mode(hdev); + if (ret) return ret; - } - - has_dribble = !!(buf[0] & BIT(4)); - - /* - * At least 4 queries are guaranteed to be present in F11 - * +1 for query 5 which is present since absolute events are - * reported and +1 for query 12. - */ - query_offset = 6; - - if (has_rel) - ++query_offset; /* query 6 is present */ - - if (has_gestures) { - /* query 8 to find out if query 10 exists */ - ret = rmi_read(hdev, - data->f11.query_base_addr + query_offset + 1, buf); - if (ret) { - hid_err(hdev, "can not read gesture information: %d.\n", - ret); - return ret; - } - has_palm_detect = !!(buf[0] & BIT(0)); - has_query10 = !!(buf[0] & BIT(2)); - - query_offset += 2; /* query 7 and 8 are present */ - } - - if (has_query9) - ++query_offset; - - if (has_query10) - ++query_offset; - - if (has_query11) - ++query_offset; - - /* query 12 to know if the physical properties are reported */ - if (has_query12) { - ret = rmi_read(hdev, data->f11.query_base_addr - + query_offset, buf); - if (ret) { - hid_err(hdev, "can not get query 12: %d.\n", ret); - return ret; - } - has_physical_props = !!(buf[0] & BIT(5)); - - if (has_physical_props) { - query_offset += 1; - ret = rmi_read_block(hdev, - data->f11.query_base_addr - + query_offset, buf, 4); - if (ret) { - hid_err(hdev, "can not read query 15-18: %d.\n", - ret); - return ret; - } - - x_size = buf[0] | (buf[1] << 8); - y_size = buf[2] | (buf[3] << 8); - - data->x_size_mm = DIV_ROUND_CLOSEST(x_size, 10); - data->y_size_mm = DIV_ROUND_CLOSEST(y_size, 10); - - hid_info(hdev, "%s: size in mm: %d x %d\n", - __func__, data->x_size_mm, data->y_size_mm); - - /* - * query 15 - 18 contain the size of the sensor - * and query 19 - 26 contain bezel dimensions - */ - query_offset += 12; - } - } - - if (has_query27) - ++query_offset; - if (has_query28) { - ret = rmi_read(hdev, data->f11.query_base_addr - + query_offset, buf); - if (ret) { - hid_err(hdev, "can not get query 28: %d.\n", ret); - return ret; - } - - has_query36 = !!(buf[0] & BIT(6)); - } - - if (has_query36) { - query_offset += 2; - ret = rmi_read(hdev, data->f11.query_base_addr - + query_offset, buf); - if (ret) { - hid_err(hdev, "can not get query 36: %d.\n", ret); - return ret; - } - - has_data40 = !!(buf[0] & BIT(5)); - } - - - if (has_data40) - data->f11.report_size += data->max_fingers * 2; - - ret = rmi_read_block(hdev, data->f11.control_base_addr, - data->f11_ctrl_regs, RMI_F11_CTRL_REG_COUNT); + ret = rmi_driver_resume(rmi_dev, false); if (ret) { - hid_err(hdev, "can not read ctrl block of size 11: %d.\n", ret); + hid_warn(hdev, "Failed to resume device: %d\n", ret); return ret; } - /* data->f11_ctrl_regs now contains valid register data */ - data->read_f11_ctrl_regs = true; - - data->max_x = data->f11_ctrl_regs[6] | (data->f11_ctrl_regs[7] << 8); - data->max_y = data->f11_ctrl_regs[8] | (data->f11_ctrl_regs[9] << 8); - - if (has_dribble) { - data->f11_ctrl_regs[0] = data->f11_ctrl_regs[0] & ~BIT(6); - ret = rmi_write(hdev, data->f11.control_base_addr, - data->f11_ctrl_regs); - if (ret) { - hid_err(hdev, "can not write to control reg 0: %d.\n", - ret); - return ret; - } - } - - if (has_palm_detect) { - data->f11_ctrl_regs[11] = data->f11_ctrl_regs[11] & ~BIT(0); - ret = rmi_write(hdev, data->f11.control_base_addr + 11, - &data->f11_ctrl_regs[11]); - if (ret) { - hid_err(hdev, "can not write to control reg 11: %d.\n", - ret); - return ret; - } - } - - return 0; -} - -static int rmi_populate_f30(struct hid_device *hdev) -{ - struct rmi_data *data = hid_get_drvdata(hdev); - u8 buf[20]; - int ret; - bool has_gpio, has_led; - unsigned bytes_per_ctrl; - u8 ctrl2_addr; - int ctrl2_3_length; - int i; - - /* function F30 is for physical buttons */ - if (!data->f30.query_base_addr) { - hid_err(hdev, "No GPIO/LEDs found, giving up.\n"); - return -ENODEV; - } - - ret = rmi_read_block(hdev, data->f30.query_base_addr, buf, 2); - if (ret) { - hid_err(hdev, "can not get F30 query registers: %d.\n", ret); - return ret; - } - - has_gpio = !!(buf[0] & BIT(3)); - has_led = !!(buf[0] & BIT(2)); - data->gpio_led_count = buf[1] & 0x1f; - - /* retrieve ctrl 2 & 3 registers */ - bytes_per_ctrl = (data->gpio_led_count + 7) / 8; - /* Ctrl0 is present only if both has_gpio and has_led are set*/ - ctrl2_addr = (has_gpio && has_led) ? bytes_per_ctrl : 0; - /* Ctrl1 is always be present */ - ctrl2_addr += bytes_per_ctrl; - ctrl2_3_length = 2 * bytes_per_ctrl; - - data->f30.report_size = bytes_per_ctrl; - - ret = rmi_read_block(hdev, data->f30.control_base_addr + ctrl2_addr, - buf, ctrl2_3_length); - if (ret) { - hid_err(hdev, "can not read ctrl 2&3 block of size %d: %d.\n", - ctrl2_3_length, ret); - return ret; - } - - for (i = 0; i < data->gpio_led_count; i++) { - int byte_position = i >> 3; - int bit_position = i & 0x07; - u8 dir_byte = buf[byte_position]; - u8 data_byte = buf[byte_position + bytes_per_ctrl]; - bool dir = (dir_byte >> bit_position) & BIT(0); - bool dat = (data_byte >> bit_position) & BIT(0); - - if (dir == 0) { - /* input mode */ - if (dat) { - /* actual buttons have pull up resistor */ - data->button_count++; - set_bit(i, &data->button_mask); - set_bit(i, &data->button_state_mask); - } - } - - } - return 0; } +#endif /* CONFIG_PM */ -static int rmi_populate(struct hid_device *hdev) +static int rmi_hid_reset(struct rmi_transport_dev *xport, u16 reset_addr) { - struct rmi_data *data = hid_get_drvdata(hdev); - int ret; - - ret = rmi_scan_pdt(hdev); - if (ret) { - hid_err(hdev, "PDT scan failed with code %d.\n", ret); - return ret; - } - - ret = rmi_populate_f01(hdev); - if (ret) { - hid_err(hdev, "Error while initializing F01 (%d).\n", ret); - return ret; - } - - ret = rmi_populate_f11(hdev); - if (ret) { - hid_err(hdev, "Error while initializing F11 (%d).\n", ret); - return ret; - } - - if (!(data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS)) { - ret = rmi_populate_f30(hdev); - if (ret) - hid_warn(hdev, "Error while initializing F30 (%d).\n", ret); - } + struct rmi_data *data = container_of(xport, struct rmi_data, xport); + struct hid_device *hdev = data->hdev; - return 0; + return rmi_reset_attn_mode(hdev); } static int rmi_input_configured(struct hid_device *hdev, struct hid_input *hi) { struct rmi_data *data = hid_get_drvdata(hdev); struct input_dev *input = hi->input; - int ret; - int res_x, res_y, i; + int ret = 0; + + if (!(data->device_flags & RMI_DEVICE)) + return 0; - data->input = input; + data->xport.input = input; hid_dbg(hdev, "Opening low level driver\n"); ret = hid_hw_open(hdev); if (ret) return ret; - if (!(data->device_flags & RMI_DEVICE)) - return 0; - /* Allow incoming hid reports */ hid_device_io_start(hdev); @@ -1222,40 +489,10 @@ static int rmi_input_configured(struct hid_device *hdev, struct hid_input *hi) goto exit; } - ret = rmi_populate(hdev); - if (ret) - goto exit; - - hid_info(hdev, "firmware id: %ld\n", data->firmware_id); - - __set_bit(EV_ABS, input->evbit); - input_set_abs_params(input, ABS_MT_POSITION_X, 1, data->max_x, 0, 0); - input_set_abs_params(input, ABS_MT_POSITION_Y, 1, data->max_y, 0, 0); - - if (data->x_size_mm && data->y_size_mm) { - res_x = (data->max_x - 1) / data->x_size_mm; - res_y = (data->max_y - 1) / data->y_size_mm; - - input_abs_set_res(input, ABS_MT_POSITION_X, res_x); - input_abs_set_res(input, ABS_MT_POSITION_Y, res_y); - } - - 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); - - ret = input_mt_init_slots(input, data->max_fingers, INPUT_MT_POINTER); - if (ret < 0) + ret = rmi_register_transport_device(&data->xport); + if (ret < 0) { + dev_err(&hdev->dev, "failed to register transport driver\n"); goto exit; - - if (data->button_count) { - __set_bit(EV_KEY, input->evbit); - for (i = 0; i < data->button_count; i++) - __set_bit(BTN_LEFT + i, input->keybit); - - if (data->button_count == 1) - __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); } set_bit(RMI_STARTED, &data->flags); @@ -1304,6 +541,71 @@ static int rmi_check_valid_report_id(struct hid_device *hdev, unsigned type, return 0; } +static struct rmi_device_platform_data rmi_hid_pdata = { + .sensor_pdata = { + .sensor_type = rmi_sensor_touchpad, + .axis_align.flip_y = true, + .dribble = RMI_REG_STATE_ON, + .palm_detect = RMI_REG_STATE_OFF, + }, +}; + +static const struct rmi_transport_ops hid_rmi_ops = { + .write_block = rmi_hid_write_block, + .read_block = rmi_hid_read_block, + .reset = rmi_hid_reset, +}; + +static void rmi_irq_teardown(void *data) +{ + struct rmi_data *hdata = data; + struct irq_domain *domain = hdata->domain; + + if (!domain) + return; + + irq_dispose_mapping(irq_find_mapping(domain, 0)); + + irq_domain_remove(domain); + hdata->domain = NULL; + hdata->rmi_irq = 0; +} + +static int rmi_irq_map(struct irq_domain *h, unsigned int virq, + irq_hw_number_t hw_irq_num) +{ + irq_set_chip_and_handler(virq, &dummy_irq_chip, handle_simple_irq); + + return 0; +} + +static const struct irq_domain_ops rmi_irq_ops = { + .map = rmi_irq_map, +}; + +static int rmi_setup_irq_domain(struct hid_device *hdev) +{ + struct rmi_data *hdata = hid_get_drvdata(hdev); + int ret; + + hdata->domain = irq_domain_create_linear(hdev->dev.fwnode, 1, + &rmi_irq_ops, hdata); + if (!hdata->domain) + return -ENOMEM; + + ret = devm_add_action_or_reset(&hdev->dev, &rmi_irq_teardown, hdata); + if (ret) + return ret; + + hdata->rmi_irq = irq_create_mapping(hdata->domain, 0); + if (hdata->rmi_irq <= 0) { + hid_err(hdev, "Can't allocate an IRQ\n"); + return hdata->rmi_irq < 0 ? hdata->rmi_irq : -ENXIO; + } + + return 0; +} + static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id) { struct rmi_data *data = NULL; @@ -1365,8 +667,8 @@ static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id) data->writeReport = devm_kzalloc(&hdev->dev, alloc_size, GFP_KERNEL); if (!data->writeReport) { - ret = -ENOMEM; - return ret; + hid_err(hdev, "failed to allocate buffer for HID reports\n"); + return -ENOMEM; } data->readReport = data->writeReport + data->output_report_size; @@ -1375,6 +677,21 @@ static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id) mutex_init(&data->page_mutex); + ret = rmi_setup_irq_domain(hdev); + if (ret) { + hid_err(hdev, "failed to allocate IRQ domain\n"); + return ret; + } + + if (data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS) + rmi_hid_pdata.f30_data.disable = true; + + data->xport.dev = hdev->dev.parent; + data->xport.pdata = rmi_hid_pdata; + data->xport.pdata.irq = data->rmi_irq; + data->xport.proto_name = "hid"; + data->xport.ops = &hid_rmi_ops; + start: ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); if (ret) { @@ -1382,17 +699,6 @@ start: return ret; } - if ((data->device_flags & RMI_DEVICE) && - !test_bit(RMI_STARTED, &data->flags)) - /* - * The device maybe in the bootloader if rmi_input_configured - * failed to find F11 in the PDT. Print an error, but don't - * return an error from rmi_probe so that hidraw will be - * accessible from userspace. That way a userspace tool - * can be used to reload working firmware on the touchpad. - */ - hid_err(hdev, "Device failed to be properly configured\n"); - return 0; } @@ -1401,6 +707,8 @@ static void rmi_remove(struct hid_device *hdev) struct rmi_data *hdata = hid_get_drvdata(hdev); clear_bit(RMI_STARTED, &hdata->flags); + cancel_work_sync(&hdata->reset_work); + rmi_unregister_transport_device(&hdata->xport); hid_hw_stop(hdev); } @@ -1425,7 +733,7 @@ static struct hid_driver rmi_driver = { #ifdef CONFIG_PM .suspend = rmi_suspend, .resume = rmi_post_resume, - .reset_resume = rmi_post_reset, + .reset_resume = rmi_post_resume, #endif }; |