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Commit 51d9e803 authored by Samuel Ortiz's avatar Samuel Ortiz
Browse files

NFC: Add type A and type F parameters for pn533 target mode 



Without those settings several devices will not activate pn533 as a target.

Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent d7f3345d

drivers/nfc/pn533.c

+24 −1
Original line number Diff line number Diff line
@@ -1126,6 +1126,13 @@ static int pn533_init_target_frame(struct pn533_frame *frame, 
{

	struct pn533_cmd_init_target *cmd;

	size_t cmd_len;

	u8 felica_params[18] = {0x1, 0xfe, /* DEP */

				0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* random */

				0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,

				0xff, 0xff}; /* System code */

	u8 mifare_params[6] = {0x1, 0x1, /* SENS_RES */

			       0x0, 0x0, 0x0,

			       0x40}; /* SEL_RES for DEP */



	cmd_len = sizeof(struct pn533_cmd_init_target) + gb_len + 1;

	cmd = kzalloc(cmd_len, GFP_KERNEL);
@@ -1136,17 +1143,33 @@ static int pn533_init_target_frame(struct pn533_frame *frame, 


	/* DEP support only */

	cmd->mode |= PN533_INIT_TARGET_DEP;

	get_random_bytes(cmd->nfcid3, 10);



	/* Felica params */

	memcpy(cmd->felica, felica_params, 18);

	get_random_bytes(cmd->felica + 2, 6);



	/* NFCID3 */

	memset(cmd->nfcid3, 0, 10);

	memcpy(cmd->nfcid3, cmd->felica, 8);



	/* MIFARE params */

	memcpy(cmd->mifare, mifare_params, 6);



	/* General bytes */

	cmd->gb_len = gb_len;

	memcpy(cmd->gb, gb, gb_len);



	/* Len Tk */

	cmd->gb[gb_len] = 0;



	memcpy(PN533_FRAME_CMD_PARAMS_PTR(frame), cmd, cmd_len);



	frame->datalen += cmd_len;



	pn533_tx_frame_finish(frame);



	kfree(cmd);



	return 0;

}