Orange Pi5 kernel

^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)  * card.c - contains functions for managing groups of PnP devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/ctype.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/pnp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include "base.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) LIST_HEAD(pnp_cards);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) static LIST_HEAD(pnp_card_drivers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) static const struct pnp_card_device_id *match_card(struct pnp_card_driver *drv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 						   struct pnp_card *card)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	const struct pnp_card_device_id *drv_id = drv->id_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	while (*drv_id->id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 		if (compare_pnp_id(card->id, drv_id->id)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 			int i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 			for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 				int found;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 				struct pnp_dev *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 				if (i == PNP_MAX_DEVICES ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 				    !*drv_id->devs[i].id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 					return drv_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 				found = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 				card_for_each_dev(card, dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 					if (compare_pnp_id(dev->id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 						   drv_id->devs[i].id)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 						found = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 						break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 					}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 				}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 				if (!found)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 					break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 				i++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 		drv_id++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) static void card_remove(struct pnp_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	dev->card_link = 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 void card_remove_first(struct pnp_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	struct pnp_card_driver *drv = to_pnp_card_driver(dev->driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	if (!dev->card || !drv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	if (drv->remove)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 		drv->remove(dev->card_link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	drv->link.remove = &card_remove;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	kfree(dev->card_link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	card_remove(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) static int card_probe(struct pnp_card *card, struct pnp_card_driver *drv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	const struct pnp_card_device_id *id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	struct pnp_card_link *clink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	struct pnp_dev *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	if (!drv->probe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	id = match_card(drv, card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	if (!id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	clink = pnp_alloc(sizeof(*clink));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	if (!clink)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	clink->card = card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	clink->driver = drv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	clink->pm_state = PMSG_ON;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	if (drv->probe(clink, id) >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	/* Recovery */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	card_for_each_dev(card, dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 		if (dev->card_link == clink)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 			pnp_release_card_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	kfree(clink);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)  * pnp_add_card_id - adds an EISA id to the specified card
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)  * @id: pointer to a pnp_id structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)  * @card: pointer to the desired card
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) static struct pnp_id *pnp_add_card_id(struct pnp_card *card, char *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	struct pnp_id *dev_id, *ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	dev_id = kzalloc(sizeof(struct pnp_id), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	if (!dev_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	dev_id->id[0] = id[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	dev_id->id[1] = id[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	dev_id->id[2] = id[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	dev_id->id[3] = tolower(id[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	dev_id->id[4] = tolower(id[4]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	dev_id->id[5] = tolower(id[5]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	dev_id->id[6] = tolower(id[6]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	dev_id->id[7] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	dev_id->next = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	ptr = card->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	while (ptr && ptr->next)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 		ptr = ptr->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	if (ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		ptr->next = dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		card->id = dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	return dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static void pnp_free_card_ids(struct pnp_card *card)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	struct pnp_id *id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	struct pnp_id *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	id = card->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	while (id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 		next = id->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		kfree(id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 		id = next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) static void pnp_release_card(struct device *dmdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	struct pnp_card *card = to_pnp_card(dmdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	pnp_free_card_ids(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	kfree(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) struct pnp_card *pnp_alloc_card(struct pnp_protocol *protocol, int id, char *pnpid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	struct pnp_card *card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	struct pnp_id *dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	card = kzalloc(sizeof(struct pnp_card), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	if (!card)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	card->protocol = protocol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	card->number = id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	card->dev.parent = &card->protocol->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	dev_set_name(&card->dev, "%02x:%02x", card->protocol->number, card->number);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	card->dev.coherent_dma_mask = DMA_BIT_MASK(24);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	card->dev.dma_mask = &card->dev.coherent_dma_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	dev_id = pnp_add_card_id(card, pnpid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	if (!dev_id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		kfree(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	return card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) static ssize_t pnp_show_card_name(struct device *dmdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 				  struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	char *str = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	struct pnp_card *card = to_pnp_card(dmdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	str += sprintf(str, "%s\n", card->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	return (str - buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) static DEVICE_ATTR(name, S_IRUGO, pnp_show_card_name, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) static ssize_t pnp_show_card_ids(struct device *dmdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 				 struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	char *str = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	struct pnp_card *card = to_pnp_card(dmdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	struct pnp_id *pos = card->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	while (pos) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 		str += sprintf(str, "%s\n", pos->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		pos = pos->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	return (str - buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) static DEVICE_ATTR(card_id, S_IRUGO, pnp_show_card_ids, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) static int pnp_interface_attach_card(struct pnp_card *card)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	int rc = device_create_file(&card->dev, &dev_attr_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 		return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	rc = device_create_file(&card->dev, &dev_attr_card_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 		goto err_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) err_name:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	device_remove_file(&card->dev, &dev_attr_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)  * pnp_add_card - adds a PnP card to the PnP Layer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)  * @card: pointer to the card to add
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) int pnp_add_card(struct pnp_card *card)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	struct list_head *pos, *temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	card->dev.bus = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	card->dev.release = &pnp_release_card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	error = device_register(&card->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 		dev_err(&card->dev, "could not register (err=%d)\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 		put_device(&card->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	pnp_interface_attach_card(card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	mutex_lock(&pnp_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	list_add_tail(&card->global_list, &pnp_cards);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	list_add_tail(&card->protocol_list, &card->protocol->cards);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	mutex_unlock(&pnp_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	/* we wait until now to add devices in order to ensure the drivers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	 * will be able to use all of the related devices on the card
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	 * without waiting an unreasonable length of time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	list_for_each(pos, &card->devices) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 		struct pnp_dev *dev = card_to_pnp_dev(pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 		__pnp_add_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	/* match with card drivers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	list_for_each_safe(pos, temp, &pnp_card_drivers) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 		struct pnp_card_driver *drv =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 		    list_entry(pos, struct pnp_card_driver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 			       global_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 		card_probe(card, drv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)  * pnp_remove_card - removes a PnP card from the PnP Layer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)  * @card: pointer to the card to remove
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) void pnp_remove_card(struct pnp_card *card)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	struct list_head *pos, *temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	device_unregister(&card->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	mutex_lock(&pnp_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	list_del(&card->global_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	list_del(&card->protocol_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	mutex_unlock(&pnp_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	list_for_each_safe(pos, temp, &card->devices) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 		struct pnp_dev *dev = card_to_pnp_dev(pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 		pnp_remove_card_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)  * pnp_add_card_device - adds a device to the specified card
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)  * @card: pointer to the card to add to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)  * @dev: pointer to the device to add
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	dev->dev.parent = &card->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	dev->card_link = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	dev_set_name(&dev->dev, "%02x:%02x.%02x",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 		     dev->protocol->number, card->number, dev->number);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	mutex_lock(&pnp_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	dev->card = card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	list_add_tail(&dev->card_list, &card->devices);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	mutex_unlock(&pnp_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)  * pnp_remove_card_device- removes a device from the specified card
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)  * @dev: pointer to the device to remove
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) void pnp_remove_card_device(struct pnp_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 	mutex_lock(&pnp_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	dev->card = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	list_del(&dev->card_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	mutex_unlock(&pnp_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	__pnp_remove_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)  * pnp_request_card_device - Searches for a PnP device under the specified card
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)  * @clink: pointer to the card link, cannot be NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)  * @id: pointer to a PnP ID structure that explains the rules for finding the device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)  * @from: Starting place to search from. If NULL it will start from the beginning.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 					const char *id, struct pnp_dev *from)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	struct list_head *pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	struct pnp_dev *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	struct pnp_card_driver *drv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	struct pnp_card *card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	if (!clink || !id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	card = clink->card;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	drv = clink->driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 	if (!from) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 		pos = card->devices.next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 		if (from->card != card)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 			return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 		pos = from->card_list.next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 	while (pos != &card->devices) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 		dev = card_to_pnp_dev(pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 		if ((!dev->card_link) && compare_pnp_id(dev->id, id))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 			goto found;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 		pos = pos->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 	return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) found:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 	dev->card_link = clink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 	dev->dev.driver = &drv->link.driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 	if (pnp_bus_type.probe(&dev->dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 		goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 	if (device_bind_driver(&dev->dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 		goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 	return dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) err_out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 	dev->dev.driver = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 	dev->card_link = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 	return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)  * pnp_release_card_device - call this when the driver no longer needs the device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)  * @dev: pointer to the PnP device structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) void pnp_release_card_device(struct pnp_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 	struct pnp_card_driver *drv = dev->card_link->driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 	drv->link.remove = &card_remove;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 	device_release_driver(&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 	drv->link.remove = &card_remove_first;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)  * suspend/resume callbacks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) static int card_suspend(struct pnp_dev *dev, pm_message_t state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 	struct pnp_card_link *link = dev->card_link;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 	if (link->pm_state.event == state.event)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 	link->pm_state = state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 	return link->driver->suspend(link, state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) static int card_resume(struct pnp_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 	struct pnp_card_link *link = dev->card_link;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 	if (link->pm_state.event == PM_EVENT_ON)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 	link->pm_state = PMSG_ON;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) 	link->driver->resume(link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)  * pnp_register_card_driver - registers a PnP card driver with the PnP Layer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)  * @drv: pointer to the driver to register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) int pnp_register_card_driver(struct pnp_card_driver *drv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 	int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) 	struct list_head *pos, *temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 	drv->link.name = drv->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 	drv->link.id_table = NULL;	/* this will disable auto matching */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 	drv->link.flags = drv->flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 	drv->link.probe = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 	drv->link.remove = &card_remove_first;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 	drv->link.suspend = drv->suspend ? card_suspend : NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 	drv->link.resume = drv->resume ? card_resume : NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 	error = pnp_register_driver(&drv->link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 	if (error < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 	mutex_lock(&pnp_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) 	list_add_tail(&drv->global_list, &pnp_card_drivers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) 	mutex_unlock(&pnp_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 	list_for_each_safe(pos, temp, &pnp_cards) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) 		struct pnp_card *card =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) 		    list_entry(pos, struct pnp_card, global_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 		card_probe(card, drv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)  * pnp_unregister_card_driver - unregisters a PnP card driver from the PnP Layer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)  * @drv: pointer to the driver to unregister
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) void pnp_unregister_card_driver(struct pnp_card_driver *drv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) 	mutex_lock(&pnp_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) 	list_del(&drv->global_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) 	mutex_unlock(&pnp_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) 	pnp_unregister_driver(&drv->link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) EXPORT_SYMBOL(pnp_request_card_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) EXPORT_SYMBOL(pnp_release_card_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) EXPORT_SYMBOL(pnp_register_card_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) EXPORT_SYMBOL(pnp_unregister_card_driver);