root/arch/sh/boards/mach-hp6xx/setup.c

DEFINITIONS

1. dac_audio_start
2. dac_audio_stop
3. hp6xx_init_irq
4. hp6xx_devices_setup
5. hp6xx_setup

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * linux/arch/sh/boards/hp6xx/setup.c
   4  *
   5  * Copyright (C) 2002 Andriy Skulysh
   6  * Copyright (C) 2007 Kristoffer Ericson <Kristoffer_e1@hotmail.com>
   7  *
   8  * Setup code for HP620/HP660/HP680/HP690 (internal peripherials only)
   9  */
  10 #include <linux/types.h>
  11 #include <linux/init.h>
  12 #include <linux/platform_device.h>
  13 #include <linux/irq.h>
  14 #include <linux/sh_intc.h>
  15 #include <sound/sh_dac_audio.h>
  16 #include <asm/hd64461.h>
  17 #include <asm/io.h>
  18 #include <mach/hp6xx.h>
  19 #include <cpu/dac.h>
  20 
  21 #define SCPCR   0xa4000116
  22 #define SCPDR   0xa4000136
  23 
  24 /* CF Slot */
  25 static struct resource cf_ide_resources[] = {
  26         [0] = {
  27                 .start = 0x15000000 + 0x1f0,
  28                 .end   = 0x15000000 + 0x1f0 + 0x08 - 0x01,
  29                 .flags = IORESOURCE_MEM,
  30         },
  31         [1] = {
  32                 .start = 0x15000000 + 0x1fe,
  33                 .end   = 0x15000000 + 0x1fe + 0x01,
  34                 .flags = IORESOURCE_MEM,
  35         },
  36         [2] = {
  37                 .start = evt2irq(0xba0),
  38                 .flags = IORESOURCE_IRQ,
  39         },
  40 };
  41 
  42 static struct platform_device cf_ide_device = {
  43         .name           =  "pata_platform",
  44         .id             =  -1,
  45         .num_resources  = ARRAY_SIZE(cf_ide_resources),
  46         .resource       = cf_ide_resources,
  47 };
  48 
  49 static struct platform_device jornadakbd_device = {
  50         .name           = "jornada680_kbd",
  51         .id             = -1,
  52 };
  53 
  54 static void dac_audio_start(struct dac_audio_pdata *pdata)
  55 {
  56         u16 v;
  57         u8 v8;
  58 
  59         /* HP Jornada 680/690 speaker on */
  60         v = inw(HD64461_GPADR);
  61         v &= ~HD64461_GPADR_SPEAKER;
  62         outw(v, HD64461_GPADR);
  63 
  64         /* HP Palmtop 620lx/660lx speaker on */
  65         v8 = inb(PKDR);
  66         v8 &= ~PKDR_SPEAKER;
  67         outb(v8, PKDR);
  68 
  69         sh_dac_enable(pdata->channel);
  70 }
  71 
  72 static void dac_audio_stop(struct dac_audio_pdata *pdata)
  73 {
  74         u16 v;
  75         u8 v8;
  76 
  77         /* HP Jornada 680/690 speaker off */
  78         v = inw(HD64461_GPADR);
  79         v |= HD64461_GPADR_SPEAKER;
  80         outw(v, HD64461_GPADR);
  81 
  82         /* HP Palmtop 620lx/660lx speaker off */
  83         v8 = inb(PKDR);
  84         v8 |= PKDR_SPEAKER;
  85         outb(v8, PKDR);
  86 
  87         sh_dac_output(0, pdata->channel);
  88         sh_dac_disable(pdata->channel);
  89 }
  90 
  91 static struct dac_audio_pdata dac_audio_platform_data = {
  92         .buffer_size            = 64000,
  93         .channel                = 1,
  94         .start                  = dac_audio_start,
  95         .stop                   = dac_audio_stop,
  96 };
  97 
  98 static struct platform_device dac_audio_device = {
  99         .name           = "dac_audio",
 100         .id             = -1,
 101         .dev            = {
 102                 .platform_data  = &dac_audio_platform_data,
 103         }
 104 
 105 };
 106 
 107 static struct platform_device *hp6xx_devices[] __initdata = {
 108         &cf_ide_device,
 109         &jornadakbd_device,
 110         &dac_audio_device,
 111 };
 112 
 113 static void __init hp6xx_init_irq(void)
 114 {
 115         /* Gets touchscreen and powerbutton IRQ working */
 116         plat_irq_setup_pins(IRQ_MODE_IRQ);
 117 }
 118 
 119 static int __init hp6xx_devices_setup(void)
 120 {
 121         return platform_add_devices(hp6xx_devices, ARRAY_SIZE(hp6xx_devices));
 122 }
 123 
 124 static void __init hp6xx_setup(char **cmdline_p)
 125 {
 126         u8 v8;
 127         u16 v;
 128 
 129         v = inw(HD64461_STBCR);
 130         v |=    HD64461_STBCR_SURTST | HD64461_STBCR_SIRST      |
 131                 HD64461_STBCR_STM1ST | HD64461_STBCR_STM0ST     |
 132                 HD64461_STBCR_SAFEST | HD64461_STBCR_SPC0ST     |
 133                 HD64461_STBCR_SMIAST | HD64461_STBCR_SAFECKE_OST|
 134                 HD64461_STBCR_SAFECKE_IST;
 135 #ifndef CONFIG_HD64461_ENABLER
 136         v |= HD64461_STBCR_SPC1ST;
 137 #endif
 138         outw(v, HD64461_STBCR);
 139         v = inw(HD64461_GPADR);
 140         v |= HD64461_GPADR_SPEAKER | HD64461_GPADR_PCMCIA0;
 141         outw(v, HD64461_GPADR);
 142 
 143         outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC0GCR);
 144 
 145 #ifndef CONFIG_HD64461_ENABLER
 146         outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC1GCR);
 147 #endif
 148 
 149         sh_dac_output(0, DAC_SPEAKER_VOLUME);
 150         sh_dac_disable(DAC_SPEAKER_VOLUME);
 151         v8 = __raw_readb(DACR);
 152         v8 &= ~DACR_DAE;
 153         __raw_writeb(v8,DACR);
 154 
 155         v8 = __raw_readb(SCPDR);
 156         v8 |= SCPDR_TS_SCAN_X | SCPDR_TS_SCAN_Y;
 157         v8 &= ~SCPDR_TS_SCAN_ENABLE;
 158         __raw_writeb(v8, SCPDR);
 159 
 160         v = __raw_readw(SCPCR);
 161         v &= ~SCPCR_TS_MASK;
 162         v |= SCPCR_TS_ENABLE;
 163         __raw_writew(v, SCPCR);
 164 }
 165 device_initcall(hp6xx_devices_setup);
 166 
 167 static struct sh_machine_vector mv_hp6xx __initmv = {
 168         .mv_name = "hp6xx",
 169         .mv_setup = hp6xx_setup,
 170         /* Enable IRQ0 -> IRQ3 in IRQ_MODE */
 171         .mv_init_irq = hp6xx_init_irq,
 172 };