diff options
Diffstat (limited to 'drivers/input/touchscreen/ipaq-micro-ts.c')
-rw-r--r-- | drivers/input/touchscreen/ipaq-micro-ts.c | 88 |
1 files changed, 56 insertions, 32 deletions
diff --git a/drivers/input/touchscreen/ipaq-micro-ts.c b/drivers/input/touchscreen/ipaq-micro-ts.c index 53fa5c361be1..62c8976e616f 100644 --- a/drivers/input/touchscreen/ipaq-micro-ts.c +++ b/drivers/input/touchscreen/ipaq-micro-ts.c | |||
@@ -46,17 +46,50 @@ static void micro_ts_receive(void *data, int len, unsigned char *msg) | |||
46 | } | 46 | } |
47 | } | 47 | } |
48 | 48 | ||
49 | static void micro_ts_toggle_receive(struct touchscreen_data *ts, bool enable) | ||
50 | { | ||
51 | struct ipaq_micro *micro = ts->micro; | ||
52 | |||
53 | spin_lock_irq(µ->lock); | ||
54 | |||
55 | if (enable) { | ||
56 | micro->ts = micro_ts_receive; | ||
57 | micro->ts_data = ts; | ||
58 | } else { | ||
59 | micro->ts = NULL; | ||
60 | micro->ts_data = NULL; | ||
61 | } | ||
62 | |||
63 | spin_unlock_irq(&ts->micro->lock); | ||
64 | } | ||
65 | |||
66 | static int micro_ts_open(struct input_dev *input) | ||
67 | { | ||
68 | struct touchscreen_data *ts = input_get_drvdata(input); | ||
69 | |||
70 | micro_ts_toggle_receive(ts, true); | ||
71 | |||
72 | return 0; | ||
73 | } | ||
74 | |||
75 | static void micro_ts_close(struct input_dev *input) | ||
76 | { | ||
77 | struct touchscreen_data *ts = input_get_drvdata(input); | ||
78 | |||
79 | micro_ts_toggle_receive(ts, false); | ||
80 | } | ||
81 | |||
49 | static int micro_ts_probe(struct platform_device *pdev) | 82 | static int micro_ts_probe(struct platform_device *pdev) |
50 | { | 83 | { |
84 | struct ipaq_micro *micro = dev_get_drvdata(pdev->dev.parent); | ||
51 | struct touchscreen_data *ts; | 85 | struct touchscreen_data *ts; |
52 | int ret; | 86 | int error; |
53 | 87 | ||
54 | ts = devm_kzalloc(&pdev->dev, sizeof(*ts), GFP_KERNEL); | 88 | ts = devm_kzalloc(&pdev->dev, sizeof(*ts), GFP_KERNEL); |
55 | if (!ts) | 89 | if (!ts) |
56 | return -ENOMEM; | 90 | return -ENOMEM; |
57 | ts->micro = dev_get_drvdata(pdev->dev.parent); | ||
58 | 91 | ||
59 | platform_set_drvdata(pdev, ts); | 92 | ts->micro = micro; |
60 | 93 | ||
61 | ts->input = devm_input_allocate_device(&pdev->dev); | 94 | ts->input = devm_input_allocate_device(&pdev->dev); |
62 | if (!ts->input) { | 95 | if (!ts->input) { |
@@ -64,37 +97,27 @@ static int micro_ts_probe(struct platform_device *pdev) | |||
64 | return -ENOMEM; | 97 | return -ENOMEM; |
65 | } | 98 | } |
66 | 99 | ||
100 | ts->input->name = "ipaq micro ts"; | ||
101 | ts->input->open = micro_ts_open; | ||
102 | ts->input->close = micro_ts_close; | ||
103 | |||
104 | input_set_drvdata(ts->input, ts); | ||
105 | |||
67 | input_set_capability(ts->input, EV_KEY, BTN_TOUCH); | 106 | input_set_capability(ts->input, EV_KEY, BTN_TOUCH); |
68 | input_set_capability(ts->input, EV_ABS, ABS_X); | 107 | input_set_capability(ts->input, EV_ABS, ABS_X); |
69 | input_set_capability(ts->input, EV_ABS, ABS_Y); | 108 | input_set_capability(ts->input, EV_ABS, ABS_Y); |
70 | input_set_abs_params(ts->input, ABS_X, 0, 1023, 0, 0); | 109 | input_set_abs_params(ts->input, ABS_X, 0, 1023, 0, 0); |
71 | input_set_abs_params(ts->input, ABS_Y, 0, 1023, 0, 0); | 110 | input_set_abs_params(ts->input, ABS_Y, 0, 1023, 0, 0); |
72 | 111 | ||
73 | ts->input->name = "ipaq micro ts"; | 112 | error = input_register_device(ts->input); |
74 | 113 | if (error) { | |
75 | ret = input_register_device(ts->input); | ||
76 | if (ret) { | ||
77 | dev_err(&pdev->dev, "error registering touch input\n"); | 114 | dev_err(&pdev->dev, "error registering touch input\n"); |
78 | return ret; | 115 | return error; |
79 | } | 116 | } |
80 | 117 | ||
81 | spin_lock_irq(&ts->micro->lock); | 118 | platform_set_drvdata(pdev, ts); |
82 | ts->micro->ts = micro_ts_receive; | ||
83 | ts->micro->ts_data = ts; | ||
84 | spin_unlock_irq(&ts->micro->lock); | ||
85 | 119 | ||
86 | dev_info(&pdev->dev, "iPAQ micro touchscreen\n"); | 120 | dev_info(&pdev->dev, "iPAQ micro touchscreen\n"); |
87 | return 0; | ||
88 | } | ||
89 | |||
90 | static int micro_ts_remove(struct platform_device *pdev) | ||
91 | { | ||
92 | struct touchscreen_data *ts = platform_get_drvdata(pdev); | ||
93 | |||
94 | spin_lock_irq(&ts->micro->lock); | ||
95 | ts->micro->ts = NULL; | ||
96 | ts->micro->ts_data = NULL; | ||
97 | spin_unlock_irq(&ts->micro->lock); | ||
98 | 121 | ||
99 | return 0; | 122 | return 0; |
100 | } | 123 | } |
@@ -104,21 +127,23 @@ static int micro_ts_suspend(struct device *dev) | |||
104 | { | 127 | { |
105 | struct touchscreen_data *ts = dev_get_drvdata(dev); | 128 | struct touchscreen_data *ts = dev_get_drvdata(dev); |
106 | 129 | ||
107 | spin_lock_irq(&ts->micro->lock); | 130 | micro_ts_toggle_receive(ts, false); |
108 | ts->micro->ts = NULL; | 131 | |
109 | ts->micro->ts_data = NULL; | ||
110 | spin_unlock_irq(&ts->micro->lock); | ||
111 | return 0; | 132 | return 0; |
112 | } | 133 | } |
113 | 134 | ||
114 | static int micro_ts_resume(struct device *dev) | 135 | static int micro_ts_resume(struct device *dev) |
115 | { | 136 | { |
116 | struct touchscreen_data *ts = dev_get_drvdata(dev); | 137 | struct touchscreen_data *ts = dev_get_drvdata(dev); |
138 | struct input_dev *input = ts->input; | ||
139 | |||
140 | mutex_lock(&input->mutex); | ||
141 | |||
142 | if (input->users) | ||
143 | micro_ts_toggle_receive(ts, true); | ||
144 | |||
145 | mutex_unlock(&input->mutex); | ||
117 | 146 | ||
118 | spin_lock_irq(&ts->micro->lock); | ||
119 | ts->micro->ts = micro_ts_receive; | ||
120 | ts->micro->ts_data = ts; | ||
121 | spin_unlock_irq(&ts->micro->lock); | ||
122 | return 0; | 147 | return 0; |
123 | } | 148 | } |
124 | #endif | 149 | #endif |
@@ -133,7 +158,6 @@ static struct platform_driver micro_ts_device_driver = { | |||
133 | .pm = µ_ts_dev_pm_ops, | 158 | .pm = µ_ts_dev_pm_ops, |
134 | }, | 159 | }, |
135 | .probe = micro_ts_probe, | 160 | .probe = micro_ts_probe, |
136 | .remove = micro_ts_remove, | ||
137 | }; | 161 | }; |
138 | module_platform_driver(micro_ts_device_driver); | 162 | module_platform_driver(micro_ts_device_driver); |
139 | 163 | ||