Javier Martinez Canillas | 4065d1e | 2012-01-31 00:18:00 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Header file for: |
| 3 | * Cypress TrueTouch(TM) Standard Product (TTSP) touchscreen drivers. |
| 4 | * For use with Cypress Txx3xx parts. |
| 5 | * Supported parts include: |
| 6 | * CY8CTST341 |
| 7 | * CY8CTMA340 |
| 8 | * |
| 9 | * Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc. |
| 10 | * Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org> |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or |
| 13 | * modify it under the terms of the GNU General Public License |
| 14 | * version 2, and only version 2, as published by the |
| 15 | * Free Software Foundation. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License along |
| 23 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 24 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 25 | * |
| 26 | * Contact Cypress Semiconductor at www.cypress.com <kev@cypress.com> |
| 27 | * |
| 28 | */ |
| 29 | |
| 30 | |
| 31 | #ifndef __CYTTSP_CORE_H__ |
| 32 | #define __CYTTSP_CORE_H__ |
| 33 | |
| 34 | #include <linux/kernel.h> |
| 35 | #include <linux/err.h> |
| 36 | #include <linux/module.h> |
| 37 | #include <linux/types.h> |
| 38 | #include <linux/device.h> |
| 39 | #include <linux/input/cyttsp.h> |
| 40 | |
| 41 | #define CY_NUM_RETRY 16 /* max number of retries for read ops */ |
| 42 | |
| 43 | struct cyttsp_tch { |
| 44 | __be16 x, y; |
| 45 | u8 z; |
| 46 | } __packed; |
| 47 | |
| 48 | /* TrueTouch Standard Product Gen3 interface definition */ |
| 49 | struct cyttsp_xydata { |
| 50 | u8 hst_mode; |
| 51 | u8 tt_mode; |
| 52 | u8 tt_stat; |
| 53 | struct cyttsp_tch tch1; |
| 54 | u8 touch12_id; |
| 55 | struct cyttsp_tch tch2; |
| 56 | u8 gest_cnt; |
| 57 | u8 gest_id; |
| 58 | struct cyttsp_tch tch3; |
| 59 | u8 touch34_id; |
| 60 | struct cyttsp_tch tch4; |
| 61 | u8 tt_undef[3]; |
| 62 | u8 act_dist; |
| 63 | u8 tt_reserved; |
| 64 | } __packed; |
| 65 | |
| 66 | |
| 67 | /* TTSP System Information interface definition */ |
| 68 | struct cyttsp_sysinfo_data { |
| 69 | u8 hst_mode; |
| 70 | u8 mfg_cmd; |
| 71 | u8 mfg_stat; |
| 72 | u8 cid[3]; |
| 73 | u8 tt_undef1; |
| 74 | u8 uid[8]; |
| 75 | u8 bl_verh; |
| 76 | u8 bl_verl; |
| 77 | u8 tts_verh; |
| 78 | u8 tts_verl; |
| 79 | u8 app_idh; |
| 80 | u8 app_idl; |
| 81 | u8 app_verh; |
| 82 | u8 app_verl; |
| 83 | u8 tt_undef[5]; |
| 84 | u8 scn_typ; |
| 85 | u8 act_intrvl; |
| 86 | u8 tch_tmout; |
| 87 | u8 lp_intrvl; |
| 88 | }; |
| 89 | |
| 90 | /* TTSP Bootloader Register Map interface definition */ |
| 91 | #define CY_BL_CHKSUM_OK 0x01 |
| 92 | struct cyttsp_bootloader_data { |
| 93 | u8 bl_file; |
| 94 | u8 bl_status; |
| 95 | u8 bl_error; |
| 96 | u8 blver_hi; |
| 97 | u8 blver_lo; |
| 98 | u8 bld_blver_hi; |
| 99 | u8 bld_blver_lo; |
| 100 | u8 ttspver_hi; |
| 101 | u8 ttspver_lo; |
| 102 | u8 appid_hi; |
| 103 | u8 appid_lo; |
| 104 | u8 appver_hi; |
| 105 | u8 appver_lo; |
| 106 | u8 cid_0; |
| 107 | u8 cid_1; |
| 108 | u8 cid_2; |
| 109 | }; |
| 110 | |
| 111 | struct cyttsp; |
| 112 | |
| 113 | struct cyttsp_bus_ops { |
| 114 | u16 bustype; |
| 115 | int (*write)(struct cyttsp *ts, |
| 116 | u8 addr, u8 length, const void *values); |
| 117 | int (*read)(struct cyttsp *ts, u8 addr, u8 length, void *values); |
| 118 | }; |
| 119 | |
| 120 | enum cyttsp_state { |
| 121 | CY_IDLE_STATE, |
| 122 | CY_ACTIVE_STATE, |
| 123 | CY_BL_STATE, |
| 124 | }; |
| 125 | |
| 126 | struct cyttsp { |
| 127 | struct device *dev; |
| 128 | int irq; |
| 129 | struct input_dev *input; |
| 130 | char phys[32]; |
| 131 | const struct cyttsp_platform_data *pdata; |
| 132 | const struct cyttsp_bus_ops *bus_ops; |
| 133 | struct cyttsp_bootloader_data bl_data; |
| 134 | struct cyttsp_sysinfo_data sysinfo_data; |
| 135 | struct cyttsp_xydata xy_data; |
| 136 | struct completion bl_ready; |
| 137 | enum cyttsp_state state; |
| 138 | bool suspended; |
| 139 | |
| 140 | u8 xfer_buf[] ____cacheline_aligned; |
| 141 | }; |
| 142 | |
| 143 | struct cyttsp *cyttsp_probe(const struct cyttsp_bus_ops *bus_ops, |
| 144 | struct device *dev, int irq, size_t xfer_buf_size); |
| 145 | void cyttsp_remove(struct cyttsp *ts); |
| 146 | |
| 147 | extern const struct dev_pm_ops cyttsp_pm_ops; |
| 148 | |
| 149 | #endif /* __CYTTSP_CORE_H__ */ |