1 #ifndef _LINUX_SPI_TSC2301_H
2 #define _LINUX_SPI_TSC2301_H
4 #include <linux/types.h>
5 #include <linux/timer.h>
7 struct tsc2301_platform_data {
13 s16 keymap[16]; /* Set a key to a negative value if not used */
14 unsigned kp_rep:1; /* Enable keypad repeating */
22 u32 ts_stab_time; /* voltage settling time */
23 u8 ts_hw_avg; /* HW assiseted averaging. Can be
24 0, 4, 8, 16 samples per reading */
25 u32 ts_max_pressure;/* Samples with bigger pressure value will
26 be ignored, since the corresponding X, Y
27 values are unreliable */
28 u32 ts_touch_pressure; /* Pressure limit until we report a
29 touch event. After that we switch
30 to ts_max_pressure. */
31 unsigned ts_ignore_last : 1;
39 unsigned pll_output:1; /* Output PLL on GPIO_0 */
41 unsigned mclk_ratio:2;
42 unsigned i2s_sample_rate:4;
43 unsigned i2s_format:2;
44 /* Mask for audio blocks to be powered down */
45 u16 power_down_blocks;
47 /* Called after codec has been initialized, can be NULL */
48 int (* codec_init)(struct device *tsc2301_dev);
49 /* Called when codec is being removed, can be NULL */
50 void (* codec_cleanup)(struct device *tsc2301_dev);
51 int (*enable_clock)(struct device *dev);
52 void (*disable_clock)(struct device *dev);
53 int (*get_keyb_irq_state)(struct device *dev);
55 const struct tsc2301_mixer_gpio {
59 unsigned def_enable:1; /* enable by default */
60 unsigned deactivate_on_pd:1; /* power-down flag */
70 struct spi_device *spi;
75 struct tsc2301_kp *kp;
76 struct tsc2301_ts *ts;
77 struct tsc2301_mixer *mixer;
79 int (*enable_clock)(struct device *dev);
80 void (*disable_clock)(struct device *dev);
84 #define TSC2301_HZ 33000000
86 #define TSC2301_REG(page, addr) (((page) << 11) | ((addr) << 5))
87 #define TSC2301_REG_TO_PAGE(reg) (((reg) >> 11) & 0x03)
88 #define TSC2301_REG_TO_ADDR(reg) (((reg) >> 5) & 0x1f)
90 #define TSC2301_REG_X TSC2301_REG(0, 0)
91 #define TSC2301_REG_Y TSC2301_REG(0, 1)
92 #define TSC2301_REG_Z1 TSC2301_REG(0, 2)
93 #define TSC2301_REG_Z2 TSC2301_REG(0, 3)
94 #define TSC2301_REG_KPDATA TSC2301_REG(0, 4)
95 #define TSC2301_REG_ADC TSC2301_REG(1, 0)
96 #define TSC2301_REG_KEY TSC2301_REG(1, 1)
97 #define TSC2301_REG_DAC TSC2301_REG(1, 2)
98 #define TSC2301_REG_REF TSC2301_REG(1, 3)
99 #define TSC2301_REG_RESET TSC2301_REG(1, 4)
100 #define TSC2301_REG_CONFIG TSC2301_REG(1, 5)
101 #define TSC2301_REG_CONFIG2 TSC2301_REG(1, 6)
102 #define TSC2301_REG_KPMASK TSC2301_REG(1, 16)
103 #define TSC2301_REG_AUDCNTL TSC2301_REG(2, 0)
104 #define TSC2301_REG_ADCVOL TSC2301_REG(2, 1)
105 #define TSC2301_REG_DACVOL TSC2301_REG(2, 2)
106 #define TSC2301_REG_BPVOL TSC2301_REG(2, 3)
107 #define TSC2301_REG_KEYCTL TSC2301_REG(2, 4)
108 #define TSC2301_REG_PD_MISC TSC2301_REG(2, 5)
109 #define TSC2301_REG_GPIO TSC2301_REG(2, 6)
110 #define TSC2301_REG_ADCLKCFG TSC2301_REG(2, 27)
112 #define TSC2301_REG_PD_MISC_APD (1 << 15)
113 #define TSC2301_REG_PD_MISC_AVPD (1 << 14)
114 #define TSC2301_REG_PD_MISC_ABPD (1 << 13)
115 #define TSC2301_REG_PD_MISC_HAPD (1 << 12)
116 #define TSC2301_REG_PD_MISC_MOPD (1 << 11)
117 #define TSC2301_REG_PD_MISC_DAPD (1 << 10)
118 #define TSC2301_REG_PD_MISC_ADPDL (1 << 9)
119 #define TSC2301_REG_PD_MISC_ADPDR (1 << 8)
120 #define TSC2301_REG_PD_MISC_PDSTS (1 << 7)
121 #define TSC2301_REG_PD_MISC_MIBPD (1 << 6)
122 #define TSC2301_REG_PD_MISC_OTSYN (1 << 2)
124 /* I2S sample rate */
125 #define TSC2301_I2S_SR_48000 0x00
126 #define TSC2301_I2S_SR_44100 0x01
127 #define TSC2301_I2S_SR_32000 0x02
128 #define TSC2301_I2S_SR_24000 0x03
129 #define TSC2301_I2S_SR_22050 0x04
130 #define TSC2301_I2S_SR_16000 0x05
131 #define TSC2301_I2S_SR_12000 0x06
132 #define TSC2301_I2S_SR_11050 0x07
133 #define TSC2301_I2S_SR_8000 0x08
135 /* 16-bit, MSB-first. DAC Right-Justified, ADC Left-Justified */
136 #define TSC2301_I2S_FORMAT0 0x00
137 /* 20-bit, MSB-first. DAC Right-Justified, ADC Left-Justified */
138 #define TSC2301_I2S_FORMAT1 0x01
139 /* 20-bit, MSB-first. DAC Left-Justified, ADC Left-Justified */
140 #define TSC2301_I2S_FORMAT2 0x02
141 /* 20-bit, MSB-first */
142 #define TSC2301_I2S_FORMAT3 0x03
144 /* Master Clock Ratio */
145 #define TSC2301_MCLK_256xFS 0x00 /* default */
146 #define TSC2301_MCLK_384xFS 0x01
147 #define TSC2301_MCLK_512xFS 0x02
150 extern u16 tsc2301_read_reg(struct tsc2301 *tsc, int reg);
151 extern void tsc2301_write_reg(struct tsc2301 *tsc, int reg, u16 val);
152 extern void tsc2301_write_kbc(struct tsc2301 *tsc, int val);
153 extern void tsc2301_write_pll(struct tsc2301 *tsc, int pll_n, int pll_a,
154 int pll_pdc, int pct_e, int pll_o);
155 extern void tsc2301_read_buf(struct tsc2301 *tsc, int reg, u16 *buf, int len);
157 #define TSC2301_DECL_MOD(module) \
158 extern int tsc2301_##module##_init(struct tsc2301 *tsc, \
159 struct tsc2301_platform_data *pdata); \
160 extern void tsc2301_##module##_exit(struct tsc2301 *tsc); \
161 extern int tsc2301_##module##_suspend(struct tsc2301 *tsc); \
162 extern void tsc2301_##module##_resume(struct tsc2301 *tsc);
164 #define TSC2301_DECL_EMPTY_MOD(module) \
165 static inline int tsc2301_##module##_init(struct tsc2301 *tsc, \
166 struct tsc2301_platform_data *pdata) \
170 static inline void tsc2301_##module##_exit(struct tsc2301 *tsc) {} \
171 static inline int tsc2301_##module##_suspend(struct tsc2301 *tsc) \
175 static inline void tsc2301_##module##_resume(struct tsc2301 *tsc) {}
177 #ifdef CONFIG_KEYBOARD_TSC2301
179 void tsc2301_kp_restart(struct tsc2301 *tsc);
181 TSC2301_DECL_EMPTY_MOD(kp)
182 static inline void tsc2301_kp_restart(struct tsc2301 *tsc) {}
185 #ifdef CONFIG_TOUCHSCREEN_TSC2301
188 TSC2301_DECL_EMPTY_MOD(ts)
191 #ifdef CONFIG_SPI_TSC2301_AUDIO
192 TSC2301_DECL_MOD(mixer)
193 extern void tsc2301_mixer_set_power(struct device *tsc_dev, int dac, int adc);
196 extern int tsc2301_mixer_register_controls(struct device *tsc_dev,
197 struct snd_card *card);
199 TSC2301_DECL_EMPTY_MOD(mixer)
202 extern void tsc2301_mixer_enable_mclk(struct device *tsc_dev);
203 extern void tsc2301_mixer_disable_mclk(struct device *tsc_dev);