^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * PCMCIA driver for SL811HS (as found in REX-CFU1U)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Filename: sl811_cs.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Author: Yukio Yamamoto
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Port to sl811-hcd and 2.6.x by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Botond Botyanszki <boti@rocketmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Simon Pickering
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Last update: 2005-05-12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/ptrace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/timer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/ioport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <pcmcia/cistpl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <pcmcia/cisreg.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <pcmcia/ds.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/usb/sl811.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) MODULE_AUTHOR("Botond Botyanszki");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) MODULE_DESCRIPTION("REX-CFU1U PCMCIA driver for 2.6");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) /*====================================================================*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) /* MACROS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) /*====================================================================*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define INFO(args...) printk(KERN_INFO "sl811_cs: " args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) /*====================================================================*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) /* VARIABLES */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) /*====================================================================*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) typedef struct local_info_t {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) struct pcmcia_device *p_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) } local_info_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) static void sl811_cs_release(struct pcmcia_device * link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) /*====================================================================*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) static void release_platform_dev(struct device * dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) dev_dbg(dev, "sl811_cs platform_dev release\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) dev->parent = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) static struct sl811_platform_data platform_data = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) .potpg = 100,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) .power = 50, /* == 100mA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) // .reset = ... FIXME: invoke CF reset on the card
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static struct resource resources[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) [0] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) .flags = IORESOURCE_IRQ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) [1] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) // .name = "address",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) .flags = IORESOURCE_IO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) [2] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) // .name = "data",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .flags = IORESOURCE_IO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) extern struct platform_driver sl811h_driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) static struct platform_device platform_dev = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .id = -1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .dev = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .platform_data = &platform_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .release = release_platform_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) .resource = resources,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) .num_resources = ARRAY_SIZE(resources),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) static int sl811_hc_init(struct device *parent, resource_size_t base_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) int irq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) if (platform_dev.dev.parent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) platform_dev.dev.parent = parent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) /* finish seting up the platform device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) resources[0].start = irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) resources[1].start = base_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) resources[1].end = base_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) resources[2].start = base_addr + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) resources[2].end = base_addr + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) /* The driver core will probe for us. We know sl811-hcd has been
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) * initialized already because of the link order dependency created
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) * by referencing "sl811h_driver".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) platform_dev.name = sl811h_driver.driver.name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) return platform_device_register(&platform_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) /*====================================================================*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static void sl811_cs_detach(struct pcmcia_device *link)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) dev_dbg(&link->dev, "sl811_cs_detach\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) sl811_cs_release(link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) /* This points to the parent local_info_t struct */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) kfree(link->priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static void sl811_cs_release(struct pcmcia_device * link)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) dev_dbg(&link->dev, "sl811_cs_release\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) pcmcia_disable_device(link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) platform_device_unregister(&platform_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) static int sl811_cs_config_check(struct pcmcia_device *p_dev, void *priv_data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) if (p_dev->config_index == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) return pcmcia_request_io(p_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) static int sl811_cs_config(struct pcmcia_device *link)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) struct device *parent = &link->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) dev_dbg(&link->dev, "sl811_cs_config\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) CONF_AUTO_CHECK_VCC | CONF_AUTO_SET_IO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) if (pcmcia_loop_config(link, sl811_cs_config_check, NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) goto failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) /* require an IRQ and two registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if (resource_size(link->resource[0]) < 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) goto failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) if (!link->irq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) goto failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) ret = pcmcia_enable_device(link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) goto failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) if (sl811_hc_init(parent, link->resource[0]->start, link->irq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) failed:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) printk(KERN_WARNING "sl811_cs_config failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) sl811_cs_release(link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) static int sl811_cs_probe(struct pcmcia_device *link)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) local_info_t *local;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) if (!local)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) local->p_dev = link;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) link->priv = local;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) return sl811_cs_config(link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) static const struct pcmcia_device_id sl811_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) PCMCIA_DEVICE_MANF_CARD(0xc015, 0x0001), /* RATOC USB HOST CF+ Card */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) PCMCIA_DEVICE_NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) MODULE_DEVICE_TABLE(pcmcia, sl811_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) static struct pcmcia_driver sl811_cs_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) .name = "sl811_cs",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) .probe = sl811_cs_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) .remove = sl811_cs_detach,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) .id_table = sl811_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) module_pcmcia_driver(sl811_cs_driver);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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