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-rw-r--r--recipes/linux/linux/simpad/linux-2.6.21-SIMpad-GPIO-MMC-mod.patch1650
1 files changed, 1650 insertions, 0 deletions
diff --git a/recipes/linux/linux/simpad/linux-2.6.21-SIMpad-GPIO-MMC-mod.patch b/recipes/linux/linux/simpad/linux-2.6.21-SIMpad-GPIO-MMC-mod.patch
new file mode 100644
index 0000000000..22f220de8a
--- /dev/null
+++ b/recipes/linux/linux/simpad/linux-2.6.21-SIMpad-GPIO-MMC-mod.patch
@@ -0,0 +1,1650 @@
+diff -uNr linux-2.6.21.vanilla/drivers/mmc/Kconfig linux-2.6.21/drivers/mmc/Kconfig
+--- linux-2.6.21.vanilla/drivers/mmc/Kconfig 2007-05-30 18:00:30.000000000 +0200
++++ linux-2.6.21/drivers/mmc/Kconfig 2007-05-30 18:26:18.000000000 +0200
+@@ -4,6 +4,12 @@
+
+ menu "MMC/SD Card support"
+
++config MMC_SPI_BLOCK
++ tristate "MMC support for SIMpad over GPIO"
++ help
++ Say Y here to enable MMC block device over GPIO
++ if you have done the MMC-Mod. For Module say M.
++
+ config MMC
+ tristate "MMC support"
+ help
+diff -uNr linux-2.6.21.vanilla/drivers/mmc/Makefile linux-2.6.21/drivers/mmc/Makefile
+--- linux-2.6.21.vanilla/drivers/mmc/Makefile 2007-05-30 18:00:30.000000000 +0200
++++ linux-2.6.21/drivers/mmc/Makefile 2007-05-30 18:26:18.000000000 +0200
+@@ -2,6 +2,8 @@
+ # Makefile for the kernel mmc device drivers.
+ #
+
++obj-$(CONFIG_MMC_SPI_BLOCK) += mmc_spi_block.o
++
+ #
+ # Core
+ #
+diff -uNr linux-2.6.21.vanilla/drivers/mmc/mmc_spi_block.c linux-2.6.21/drivers/mmc/mmc_spi_block.c
+--- linux-2.6.21.vanilla/drivers/mmc/mmc_spi_block.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.21/drivers/mmc/mmc_spi_block.c 2007-05-30 18:30:58.000000000 +0200
+@@ -0,0 +1,1618 @@
++/*
++ * Copyright (c) Cl�ent Ballabriga, 2005 - GPL
++ * Copyright (c) Guylhem Aznar, 2005 - GPL
++ *
++ * Please check http://externe.net/zaurus/simpad-bluetooth reference design first.
++ *
++ * Based on Madsuk/Rohde work on a MMC driver for the WRT54G.
++ *
++ * This is an ugly hack of a driver. I am surprised if it ever works!
++ * So please use a real driver or contribute one to the 2.4/2.6 mmc framework
++ *
++ * mrdata: ported to 2.6
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++
++#include <linux/sched.h>
++#include <linux/kernel.h>
++#include <linux/fs.h>
++#include <linux/errno.h>
++#include <linux/hdreg.h>
++#include <linux/kdev_t.h>
++#include <linux/blkdev.h>
++#include <linux/spinlock.h>
++#include <linux/time.h>
++#include <linux/delay.h>
++#include <linux/timer.h>
++
++#include <linux/platform_device.h>
++
++#include <asm/hardware.h>
++#include <asm/arch/simpad.h>
++#include <asm/arch/gpio.h>
++
++static int major = 121;
++
++#define DEVICE_NAME "mmc_spi"
++
++static int hd_sizes[1<<6];
++static int hd_blocksizes[1<<6];
++static int hd_hardsectsizes[1<<6];
++static int hd_maxsect[1<<6];
++static struct hd_struct hd[1<<6];
++
++static struct gendisk *mmc_disk;
++
++static struct platform_device *mmc_dev; /* the one and only instance */
++
++static spinlock_t mmc_spi_lock;
++
++/*
++ * *******************************************************************
++ *
++ * This is the only configurable part.
++ *
++ * *******************************************************************
++ *
++ */
++
++// #define DEBUG 1
++// #define DEBUG_HD 1
++// #define CHECK_MEDIA_CHANGE // for developement ONLY, not working yet
++
++/* Let that include where it is or compilation fails on INIT_REQUEST/CURRENT */
++
++
++/*
++ * If you are using different GPIOs in your hardware hack, you must
++ * first make sure they are unused for other functions and then
++ * configure them here.
++ *
++ * On the simpad I use spare pins from the UART1 (internal serial port -> DECT 20-polig):
++ *
++ * Funktion PIN ## Original direction GPIO ## SPI function New direction SD/MMC
++ * - DCD PIN 08 (in) GPIO 23 DO - new name: DI -> MISO (in) PIN 7 Data Out
++ * - DTR PIN 11 (out) GPIO 07 CS (out) PIN 1 Chip Select
++ * - RI PIN 14 (in) GPIO 19 CLK (out) PIN 5 Clock
++ * - DSR PIN 16 (in) GPIO 06 DI - new name: DO -> MOSI (out) PIN 2 Data In
++ *
++ *
++ * SPI: MISO = Master In / Slave OUT MOSI = Master Out / Slave In
++ *
++ * Don't worry about in/out original function - the GPIOs will be
++ * reprogrammed.
++ */
++
++#define GPIO_SD_DI 23
++#define GPIO_SD_CS 7
++#define GPIO_SD_CLK 19
++#define GPIO_SD_DO 6
++
++// #define FAST_GPIO_SD_DI GPIO_GPIO23
++// #define FAST_GPIO_SD_CS GPIO_GPIO7
++// #define FAST_GPIO_SD_CLK GPIO_GPIO19
++// #define FAST_GPIO_SD_DO GPIO_GPIO6
++
++#define FAST_GPIO_SD_DI GPIO_UART1_DCD
++#define FAST_GPIO_SD_CS GPIO_UART1_DTR
++#define FAST_GPIO_SD_CLK GPIO_UART1_RI
++#define FAST_GPIO_SD_DO GPIO_UART1_DSR
++
++/*
++ * *******************************************************************
++ *
++ * Do not change anything below !
++ *
++ * *******************************************************************
++ *
++ */
++
++/* GPIO states */
++#define LOW 0
++#define HIGH 1
++
++#define INPUT 0
++#define OUTPUT 1
++
++#define PRESENT 1
++#define ABSENT 0
++
++typedef unsigned int uint32;
++typedef unsigned long u32_t;
++typedef unsigned short u16_t;
++typedef unsigned char u8_t;
++
++static struct timer_list mmc_timer;
++
++// static struct timeval s_zeit, e_zeit;
++
++/* start with no card */
++static int mmc_media_detect = 0;
++static int mmc_media_changed = 1;
++
++
++/////////////////////
++// prototypes
++static int mmc_open(struct inode *inode, struct file *filp);
++static int mmc_release(struct inode *inode, struct file *filp);
++static int mmc_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg);
++static void mmc_request(request_queue_t *q);
++
++
++/*
++ * *******************************************************************
++ *
++ * Begin GPIO hardware access functions.
++ *
++ * *******************************************************************
++ *
++ */
++
++#define gpio_read(a) ((GPLR & a) ? 1 : 0)
++#define gpio_write_high(a) GPSR = a
++#define gpio_write_low(a) GPCR = a
++
++/* set MMC_Chip_Select to HIGH (MMC/SD-Card inaktiv) */
++#define MMC_Disable() gpio_write_high( FAST_GPIO_SD_CS)
++
++/* set MMC_Chip_Select to LOW (MMC/SD-Card aktiv) */
++#define MMC_Enable() gpio_write_low( FAST_GPIO_SD_CS)
++
++/*
++ * *******************************************************************
++ *
++ * Begin SPI hardware access functions.
++ *
++ * *******************************************************************
++ *
++ */
++static int mmc_spi_media_detect(void)
++{
++// FIXME: add card detection/test by SPI
++
++ return 1;
++}
++
++static int mmc_spi_hardware_init(void)
++{
++ printk("\nmmc: GPIO init\n");
++
++ /* cut existing functions */
++ gpio_set_alternative_function(GPIO_SD_CLK, 0);
++ gpio_set_alternative_function(GPIO_SD_DI, 0);
++ gpio_set_alternative_function(GPIO_SD_DO, 0);
++ gpio_set_alternative_function(GPIO_SD_CS, 0);
++
++ /* remap directions and set state of spi pins */
++ gpio_direction_output(GPIO_SD_CLK, 0);
++ gpio_direction_input(GPIO_SD_DI);
++ gpio_direction_output(GPIO_SD_DO, 0);
++ gpio_direction_output(GPIO_SD_CS, 0);
++
++ printk("mmc: initialising MMC\n");
++
++ /* Start */
++ MMC_Disable();
++ gpio_write_low( FAST_GPIO_SD_CLK);
++ gpio_write_high( FAST_GPIO_SD_DO);
++ return 0;
++}
++
++/* return what has been read, write the parameter */
++/* Clockrate round about 1,2 MHz */
++
++static unsigned char mmc_spi_readwrite(unsigned char data_out)
++{
++ unsigned char i;
++ unsigned char result = 0;
++
++ for(i = 0x80 ; i != 0 ; i >>= 1)
++ {
++ if (data_out & i)
++ {
++ gpio_write_high( FAST_GPIO_SD_DO);
++ }
++ else
++ {
++ gpio_write_low( FAST_GPIO_SD_DO);
++ }
++
++ gpio_write_high( FAST_GPIO_SD_CLK);
++
++ if (gpio_read( FAST_GPIO_SD_DI) == 1)
++ {
++ result |= i;
++ }
++
++ gpio_write_low( FAST_GPIO_SD_CLK);
++
++ }
++
++ gpio_write_high( FAST_GPIO_SD_DO);
++
++ return (result);
++}
++
++/* return what has been read, write the parameter */
++/* Clockrate round 200 kHz */
++
++static unsigned char mmc_spi_readwrite_slow(unsigned char data_out)
++{
++ unsigned char i;
++ unsigned char result = 0;
++
++ for(i = 0x80 ; i != 0 ; i >>= 1)
++ {
++ if (data_out & i)
++ {
++ gpio_write_high( FAST_GPIO_SD_DO);
++ }
++ else
++ {
++ gpio_write_low( FAST_GPIO_SD_DO);
++ }
++
++ udelay(10);
++
++ gpio_write_high( FAST_GPIO_SD_CLK);
++
++ udelay(10);
++
++ if (gpio_read( FAST_GPIO_SD_DI) == 1)
++ {
++ result |= i;
++ }
++
++ udelay(10);
++
++ gpio_write_low( FAST_GPIO_SD_CLK);
++
++ udelay(10);
++
++ }
++
++ gpio_write_high( FAST_GPIO_SD_DO);
++
++ udelay(10);
++
++ // printk("Send Byte = 0x%2X Receive Byte = 0x%2X \n", data_out, result);
++
++ return (result);
++}
++
++/* return what has been read */
++
++static unsigned char mmc_spi_read_only(void)
++{
++ unsigned char i;
++ unsigned char result = 0;
++
++ for(i = 0x80 ; i != 0 ; i >>= 1)
++ {
++
++ gpio_write_high( FAST_GPIO_SD_CLK);
++
++ if (gpio_read( FAST_GPIO_SD_DI) == 1)
++ {
++ result |= i;
++ }
++
++ gpio_write_low( FAST_GPIO_SD_CLK);
++
++ }
++
++ return (result);
++}
++
++/* write the parameter */
++/* Clockrate round about 3,6 MHz */
++
++static unsigned char mmc_spi_write_only(unsigned char data_out)
++{
++ unsigned char i;
++ unsigned char result = 0;
++
++ for(i = 0x80 ; i != 0 ; i >>= 1)
++ {
++
++ if (data_out & i)
++ {
++ gpio_write_high( FAST_GPIO_SD_DO);
++ }
++ else
++ {
++ gpio_write_low( FAST_GPIO_SD_DO);
++ }
++
++ gpio_write_high( FAST_GPIO_SD_CLK);
++
++ gpio_write_low( FAST_GPIO_SD_CLK);
++
++ }
++
++ gpio_write_high( FAST_GPIO_SD_DO);
++
++ return (result);
++}
++
++
++/**
++ * this function was contributed by: rcichielo from openwrt forums
++ *
++ * Comments added by Marc DENTY on 2007-03-20
++ *
++ * Sequence to read a card's "CID" bytes (name, serial number etc)
++ *
++ * Send: 4ah,00h,00h,00h,00h,00h - CMD10, no args, null CRC
++ * Read: xx - NCR Time
++ * Read: xx - Command Response (Should be 00h)
++ * Read: until FEh is received - Wait for Data token
++ * Read: yy * 16 - Get 16 bytes from CID
++ * Read: zz - Read CRC lo byte
++ * Read: zz - Read CRC hi byte
++ *
++ * Useful locations in the returned data packet:
++ *
++ * 03h-08h Manufacturers's name in ascii
++ * 0ah-0dh Card's 32 bit serial number
++ */
++/**
++ * Comments added by Cyril CATTIAUX on 2007-03-21
++ *
++ * CID format specification (from Sandisk SD Product Manual v1.9)
++ *
++ * cid[00 ] Manufacturer ID (unsigned byte)
++ * cid[01-02] OEM/Application ID (ASCII)
++ * cid[03-07] Product Name (ASCII)
++ * cid[08 ] Product Revistion (BCD coded number)
++ * cid[09-12] Serial Number (32-bit unsigned int)
++ * cid[13-14] Reserved(bit 12->15) - Manufacture Date(bit 0->11)
++ * cid[15 ] CRC7(bit 1->7) - Not used, allways 1 (bit 0)
++*/
++static int mmc_read_cid(unsigned char *cid)
++{
++ unsigned char result = 0;
++ int i;
++
++ MMC_Enable();
++
++ /* wait */
++ for (i = 0; i < 4; i++)
++ {
++ result=mmc_spi_readwrite(0xff);
++ }
++
++ /* issue CID (card identification data) read request */
++ mmc_spi_readwrite(0xff);
++ mmc_spi_readwrite(0x40 | 10);
++ mmc_spi_readwrite(0x00);
++ mmc_spi_readwrite(0x00);
++ mmc_spi_readwrite(0x00);
++ mmc_spi_readwrite(0x00);
++ mmc_spi_readwrite(0x95);
++
++ for (i = 0; i < 8; i++)
++ {
++ result=mmc_spi_readwrite(0xff);
++
++ if(result == 0x00)
++ break;
++ }
++
++ if (result != 0x00) {
++ MMC_Disable();
++ mmc_spi_readwrite(0xff);
++ return(1);
++ }
++
++ for (i = 0; i < 8; i++) {
++ result = mmc_spi_readwrite(0xff);
++ if (result == 0xfe) break;
++ }
++
++ if (result != 0xfe) {
++ MMC_Disable();
++ mmc_spi_readwrite(0xff);
++ return(2);
++ }
++
++ for (i = 0; i < 16; i++) {
++ result = mmc_spi_readwrite(0xff);
++ cid[i] = result;
++ }
++
++ mmc_spi_readwrite(0xff);
++ mmc_spi_readwrite(0xff);
++
++ MMC_Disable();
++ mmc_spi_readwrite(0xff);
++
++ return 0;
++}
++
++
++/**
++ * Comments added by Cyril CATTIAUX on 2007-03-21
++ *
++ * CID format specification (from Sandisk SD Product Manual v1.9)
++ *
++ * cid[00 ] Manufacturer ID (unsigned byte)
++ * cid[01-02] OEM/Application ID (ASCII)
++ * cid[03-07] Product Name (ASCII)
++ * cid[08 ] Product Revision (BCD coded 2 digit number)
++ * cid[09-12] Serial Number (32-bit unsigned int)
++ * cid[13-14] Manufacture Date(bit 0->11) (BCD coded 3 digit number YYM offset from 2000) - Reserved(bit 12->15)
++ * cid[15 ] Not used, allways 1 (bit 0) - CRC7(bit 1->7)
++*/
++static void mmc_show_cid_info(void)
++{
++ int i, result;
++ unsigned short tmps;
++ unsigned char cid[16];
++
++ char manufacturer_id;
++ char oem_id[3];
++ char product_name[6];
++ unsigned char product_revision_h, product_revision_l;
++ unsigned int product_sn;
++ unsigned short product_date_y;
++ unsigned char product_date_m;
++
++ result = mmc_read_cid(cid);
++
++ if (result == 0)
++ {
++ printk("mmc_init: MMC/SD Card ID: ");
++ for (i=0; i<16; i++) {
++ printk("%02X ", cid[i]);
++ }
++ manufacturer_id=cid[0];
++ strncpy(oem_id, &cid[1], 2);
++ oem_id[2]='\0';
++ strncpy(product_name, &cid[3], 5);
++ product_name[5]='\0';
++ product_revision_h=(cid[8] >> 4) & 0xf;
++ product_revision_l=cid[8] & 0xf;
++ product_sn=(cid[9]<<24) + (cid[10]<<16) + (cid[11]<<8) + cid[12];
++ tmps=((cid[13]<<8) + cid[14]) & 0x0fff;
++ product_date_y=2000 + (((tmps >> 8) & 0xf) * 10) + ((tmps >> 4) & 0xf);
++ product_date_m=tmps & 0xf;
++
++ printk("\nManufacturer ID : %02X\n", manufacturer_id);
++ printk("OEM/Application ID: %s\n", oem_id);
++ printk("Product name : %s\n", product_name);
++ printk("Product revision : %d.%d\n", product_revision_h, product_revision_l);
++ printk("Product SN : %08X\n", product_sn);
++ printk("Product Date : %d-%d\n", product_date_y, product_date_m);
++
++ } else {
++ printk("mmc_init: impossible to get card indentification info for reason code: %02x", result);
++ }
++}
++
++
++/*
++static int mmc_spi_hw_test(void)
++{
++ unsigned char result, k;
++
++ unsigned int i, j, t;
++
++ printk("mmc_spi_hw_test -> \n\n");
++ k = 0x55;
++ for ( i = 0 ; i < 5; i++) {
++
++ printk("\n0x%2X - ", k);
++ for ( j = 0 ; j < 8; j++ ) {
++ do_gettimeofday( &s_zeit );
++ result = mmc_spi_readwrite_slow(k);
++ do_gettimeofday( &e_zeit );
++
++ if ( result != k ) {
++ printk("!>ERROR<! Transfer = 0x%2X Receive = 0x%2X Trail = %d \n", k, result, j);
++ // i = 255; j = 1000;
++ }
++
++ t = (e_zeit.tv_sec-s_zeit.tv_sec)*1000000+(e_zeit.tv_usec-s_zeit.tv_usec);
++ printk("Durchlauf: %i Versuch: %i von 8 -> Laufzeit: 0x%X s\n", i , j, t);
++ udelay(200);
++ }
++ printk("ready ");
++
++ // k++;
++ }
++ printk("ready ");
++ printk("\n\n");
++ return (0);
++}
++*/
++
++/*
++static int mmc_spi_speed_test(void)
++{
++ unsigned int i, j, k, l, t;
++
++ MMC_Disable();
++
++ for (k = 1; k < 6; k++)
++ {
++ l = 10000 * k;
++ for (j = 0; j < 5; j++)
++ {
++ do_gettimeofday( &s_zeit );
++ for (i = 0; i < l; i++)
++ mmc_spi_readwrite(0xff);
++ do_gettimeofday( &e_zeit );
++ t = (e_zeit.tv_sec-s_zeit.tv_sec)*1000000+(e_zeit.tv_usec-s_zeit.tv_usec);
++ printk("mmc_spi_readwrite: Laufzeit %u x : 0x%X \n", l, t);
++ }
++ }
++
++ for (k = 1; k < 1; k++)
++ {
++ l = 10000 * k;
++ for (j = 0; j < 1; j++)
++ {
++ do_gettimeofday( &s_zeit );
++ for (i = 0; i < l; i++)
++ mmc_spi_readwrite_slow(0xff);
++ do_gettimeofday( &e_zeit );
++ t = (e_zeit.tv_sec-s_zeit.tv_sec)*1000000+(e_zeit.tv_usec-s_zeit.tv_usec);
++ printk("mmc_spi_readwrite_slow: Laufzeit %u x : 0x%X \n", l, t);
++ }
++ }
++
++ for (k = 1; k < 6; k++)
++ {
++ l = 10000 * k;
++ for (j = 0; j < 5; j++)
++ {
++ do_gettimeofday( &s_zeit );
++ for (i = 0; i < l; i++)
++ mmc_spi_read_only();
++ do_gettimeofday( &e_zeit );
++ t = (e_zeit.tv_sec-s_zeit.tv_sec)*1000000+(e_zeit.tv_usec-s_zeit.tv_usec);
++ printk("mmc_spi_read_only: Laufzeit %u x : 0x%X \n", l, t);
++ }
++ }
++
++ for (k = 1; k < 6; k++)
++ {
++ l = 10000 * k;
++ for (j = 0; j < 5; j++)
++ {
++ do_gettimeofday( &s_zeit );
++ for (i = 0; i < l; i++)
++ mmc_spi_write_only(0xff);
++ do_gettimeofday( &e_zeit );
++ t = (e_zeit.tv_sec-s_zeit.tv_sec)*1000000+(e_zeit.tv_usec-s_zeit.tv_usec);
++ printk("mmc_spi_write_only: Laufzeit %u x : 0x%X \n", l, t);
++ }
++ }
++
++ return (1);
++
++}
++*/
++
++
++static int mmc_spi_card_init(void)
++{
++ unsigned char result = 0;
++ short i, j;
++
++// unsigned long flags;
++
++ // save_flags(flags);
++ // cli();
++
++/*
++ printk("GPIO_SD_CS dir: %u alt: %u\n", gpio_getdir(&gp, GPIO_SD_CS), gpio_getalt(&gp, GPIO_SD_CS));
++ printk("GPIO_SD_DI dir: %u alt: %u\n", gpio_getdir(&gp, GPIO_SD_DI), gpio_getalt(&gp, GPIO_SD_DI));
++ printk("GPIO_SD_DO dir: %u alt: %u\n", gpio_getdir(&gp, GPIO_SD_DO), gpio_getalt(&gp, GPIO_SD_DO));
++ printk("GPIO_SD_CS dir: %u alt: %u\n", gpio_getdir(&gp, GPIO_SD_CLK), gpio_getalt(&gp, GPIO_SD_CLK));
++*/
++
++ // printk("\nmmc: mmc_spi_hw_test() *START*\n");
++
++ // mmc_spi_hw_test();
++
++ printk("\nmmc: card init 1/2 (CMD0)\n");
++
++ for (j = 0; j < 10; j++)
++ {
++ MMC_Disable();
++
++ for (i = 0; i < 10; i++)
++ mmc_spi_readwrite_slow(0xff);
++
++ MMC_Enable();
++
++ mmc_spi_readwrite_slow(0xff);
++
++ mmc_spi_readwrite_slow(0x40);
++
++ for (i = 0; i < 4; i++) {
++
++ mmc_spi_readwrite_slow(0x00);
++
++ }
++
++ mmc_spi_readwrite_slow(0x95);
++
++ for (i = 0; i < 8; i++) {
++
++ result = mmc_spi_readwrite_slow(0xff);
++
++#ifdef DEBUG_HD
++ if (result != 0xff) {
++ if (result > 0x1F && result < 0x80)
++ printk("mmc: resp. (CMD0) Versuch(%d) BYTE: %d result = 0x%X Zeichen = %c\n", j, i, result, result);
++ else
++ printk("mmc: resp. (CMD0) Versuch(%d) BYTE: %d result = 0x%X\n", j, i, result);
++ }
++#endif
++ if (result == 0x01)
++ break;
++ }
++
++ if (result == 0x01)
++ break;
++
++ MMC_Disable();
++ mmc_spi_readwrite_slow(0xff);
++
++ mdelay(60);
++ }
++
++ if (result != 0x01) {
++
++ printk("mmc: card init 1/2 error: %d (CMD0) failed\n", result);
++ printk(" -> Hint: MMC/SD-Card realy (fully) inserted ?\n");
++
++ return (1);
++ }
++
++ printk("mmc: card init 1/2 (CMD0) success\n\n");
++
++ mdelay(1);
++
++ printk("mmc: card init 2/2 (CMD1)\n");
++ for (j = 0; j < 10; j++) {
++
++ mmc_spi_readwrite_slow(0xff);
++ mmc_spi_readwrite_slow(0x41);
++ for (i = 0; i < 4; i++)
++ mmc_spi_readwrite_slow(0x00);
++ mmc_spi_readwrite_slow(0x95);
++ for (i = 0; i < 8; i++) {
++ result = mmc_spi_readwrite_slow(0xff);
++#ifdef DEBUG_HD
++ // if (result >= 32 && result <= 127)
++ // printk("mmc: response (CMD1) Versuch(%d) start token BYTE: %d result = 0x%X Zeichen = %c\n", j, i, result, result);
++ // else
++ // printk("mmc: response (CMD1) Versuch(%d) start token BYTE: %d result = 0x%X\n", j, i, result);
++#endif
++ if (result == 0x00)
++ break;
++ }
++
++ mmc_spi_readwrite_slow(0xff);
++
++ if (result == 0x00) {
++ printk("mmc: card init 2/2 (CMD1) success\n\n");
++
++ mmc_spi_readwrite_slow(0xff);
++ mmc_spi_readwrite_slow(0x4d);
++ mmc_spi_readwrite_slow(0x00);
++ mmc_spi_readwrite_slow(0x00);
++ mmc_spi_readwrite_slow(0x00);
++ mmc_spi_readwrite_slow(0x00);
++ mmc_spi_readwrite_slow(0x95);
++ for (i = 0; i < 6; i++) {
++ result = mmc_spi_readwrite_slow(0xff);
++#ifdef DEBUG_HD
++ // if (result > 31 && result < 128)
++ // printk("mmc: response (CMD13) Versuch(%d) start token BYTE: %d result = 0x%X Zeichen = %c\n", j, i, result, result);
++ // else
++ // printk("mmc: response (CMD13) Versuch(%d) start token BYTE: %d result = 0x%X\n", j, i, result);
++#endif
++ // if (result == 0x00)
++ // break;
++ }
++ // mdelay(60);
++ MMC_Disable();
++ mmc_spi_readwrite_slow(0xff);
++ // mmc_spi_readwrite_slow(0xff);
++ // mdelay(10);
++
++ // restore_flags(flags);
++
++ return (0);
++ }
++ mdelay(60);
++ }
++ return (2);
++}
++
++
++static int mmc_spi_card_config(void)
++{
++ unsigned char result = 0;
++ short i, j;
++ unsigned char csd[32];
++ unsigned int c_size;
++ unsigned int c_size_mult;
++ unsigned int mult;
++ unsigned int read_bl_len;
++ unsigned int blocknr = 0;
++ unsigned int block_len = 0;
++ unsigned int size = 0;
++ unsigned char rd_buffer[528];
++// unsigned long flags;
++
++ MMC_Enable();
++
++ mmc_spi_readwrite_slow(0xff);
++ result = mmc_spi_readwrite_slow(0x51);
++ // mmc_spi_readwrite_slow(0x4A);
++ // mmc_spi_readwrite_slow(0x40+0x0D);
++ // mmc_spi_readwrite_slow(0x42);
++ for (i = 0; i < 4; i++)
++ mmc_spi_readwrite_slow(0x00);
++ mmc_spi_readwrite_slow(0x95);
++
++ // printk("mmc: (CMD17) response von 0x51 result = 0x%X\n", result);
++
++ for (i = 0; i < 8; i++) {
++ result = mmc_spi_readwrite_slow(0xff);
++#ifdef DEBUG_HD
++ // printk("mmc: (CMD17) response (start token) result = 0x%X\n", result);
++#endif
++ if (result == 0x00)
++ break;
++ }
++ if (result != 0x00) {
++ MMC_Disable();
++ mmc_spi_readwrite_slow(0xff);
++ // restore_flags(flags);
++ // mmc_spi_readwrite_slow(0xff);
++ return (1);
++ }
++ // restore_flags(flags);
++ for (i = 0; i < 8; i++) {
++ result = mmc_spi_readwrite_slow(0xff);
++ rd_buffer[i] = result;
++#ifdef DEBUG_HD
++ /*
++ if (result >= 32 && result <= 127)
++ printk("mmc: CMD17 response (start token) result = 0x%X Zeichen = %c\n", result, result);
++ else
++ printk("mmc: CMD17 response (start token) result = 0x%X\n", result);
++ */
++#endif
++ // if (result == 0xfe)
++ // break;
++ }
++ /*
++ if (result != 0xfe) {
++ MMC_Disable();
++ mmc_spi_readwrite_slow(0xff);
++ mmc_spi_readwrite_slow(0xff);
++ return(1);
++ }
++ */
++
++ for (i = 8; i < 520; i++) {
++ result = mmc_spi_readwrite_slow(0xff);
++ rd_buffer[i] = result;
++ }
++ for (i = 0; i < 2; i++) {
++ result = mmc_spi_readwrite_slow(0xff);
++ }
++ MMC_Disable();
++ mmc_spi_readwrite_slow(0xff);
++ // mmc_spi_readwrite_slow(0xff);
++
++ printk("Buffer - Start\n");
++
++ for ( i = 0 ; i < 33 ; i++) {
++ printk("\r\n%4X - ", i*16);
++ for ( j = 0 ; j < 16 ; j++) {
++ if ( rd_buffer[i*16+j] < 16)
++ printk("0%X ", rd_buffer[i*16+j]);
++ else
++ printk("%2X ", rd_buffer[i*16+j]);
++ }
++ for ( j = 0 ; j < 16 ; j++) {
++ if ( rd_buffer[i*16+j] < ' ')
++ printk(".");
++ else
++ printk("%c", rd_buffer[i*16+j]);
++ }
++ }
++
++ printk("\nBuffer - Ende\n");
++
++ mmc_show_cid_info();
++
++ for(j = 0 ; j < 1; j++) {
++ MMC_Enable();
++
++ // mdelay(1);
++
++ // save_flags(flags);
++ // cli();
++ mmc_spi_readwrite_slow(0xff);
++ mmc_spi_readwrite_slow(0x49);
++ // mmc_spi_readwrite_slow(0x4A);
++ // mmc_spi_readwrite_slow(0x40+0x0D);
++ // mmc_spi_readwrite_slow(0x42);
++ for (i = 0; i < 4; i++)
++ mmc_spi_readwrite_slow(0x00);
++ mmc_spi_readwrite_slow(0x95);
++ for (i = 0; i < 8; i++) {
++ result = mmc_spi_readwrite_slow(0xff);
++#ifdef DEBUG_HD
++ // printk("mmc: (CMD9) response (start token) result = 0x%X\n", result);
++#endif
++ if (result == 0x00)
++ break;
++ }
++ // restore_flags(flags);
++ if (result != 0x00) {
++ MMC_Disable();
++ mmc_spi_readwrite_slow(0xff);
++ // mmc_spi_readwrite_slow(0xff);
++ return (1);
++ }
++ for (i = 0; i < 22; i++) {
++ result = mmc_spi_readwrite_slow(0xff);
++#ifdef DEBUG_HD
++ if (result >= 32 && result <= 127)
++ printk("mmc: response (start token) result = 0x%X Zeichen = %c\n", result, result);
++ else
++ printk("mmc: response (start token) result = 0x%X\n", result);
++#endif
++ if (result == 0xfe)
++ break;
++ }
++ if (result == 0xfe)
++ break;
++
++ if (result != 0xfe) {
++ MMC_Disable();
++ mmc_spi_readwrite_slow(0xff);
++ // mmc_spi_readwrite_slow(0xff);
++ }
++ mdelay(60);
++ }
++
++ if (result != 0xfe) {
++ MMC_Disable();
++ mmc_spi_readwrite_slow(0xff);
++ printk("mmc: mmc card config (CMD9) failed result = 0x%X\n\n", result);
++ return (2);
++ }
++ for (i = 0; i < 16; i++) {
++ result = mmc_spi_readwrite_slow(0xff);
++ csd[i] = result;
++ }
++ for (i = 0; i < 2; i++) {
++ result = mmc_spi_readwrite_slow(0xff);
++ }
++ MMC_Disable();
++ mmc_spi_readwrite_slow(0xff);
++ // mmc_spi_readwrite_slow(0xff);
++
++ if (result == 0x00)
++ return (3);
++
++ c_size = (csd[8] & 0xC0) + (csd[7] << 8) + ((csd[6] & 0x03) << 16);
++ c_size >>= 6;
++ c_size_mult = (csd[10] & 0x80) + ((csd[9] & 0x03) << 8);
++ c_size_mult >>= 7;
++ read_bl_len = csd[5] & 0x0f;
++ mult = 1;
++ mult <<= c_size_mult + 2;
++ blocknr = (c_size + 1) * mult;
++ block_len = 1;
++ block_len <<= read_bl_len;
++ size = block_len * blocknr;
++ size >>= 10;
++
++ for (i = 0; i < (1 << 6); i++) {
++ hd_blocksizes[i] = 1024;
++ hd_hardsectsizes[i] = block_len;
++ hd_maxsect[i] = 256;
++ }
++ hd_sizes[0] = size;
++ hd[0].nr_sects = blocknr;
++
++ printk("Size = %d, hardsectsize = %d, sectors = %d\n",
++ size, block_len, blocknr);
++
++ return 0;
++}
++
++
++/*
++ * *******************************************************************
++ *
++ * End of SPI hardware access functions.
++ *
++ * *******************************************************************
++ */
++
++
++static int mmc_spi_write_block(unsigned int dest_addr, unsigned char *data)
++{
++ unsigned int address;
++ unsigned char result = 0;
++ unsigned char ab0, ab1, ab2, ab3;
++ int i;
++
++ address = dest_addr;
++
++ ab3 = 0xff & (address >> 24);
++ ab2 = 0xff & (address >> 16);
++ ab1 = 0xff & (address >> 8);
++ ab0 = 0xff & address;
++
++ MMC_Enable();
++
++ mmc_spi_readwrite(0xff);
++
++ mmc_spi_readwrite(0x58);
++ mmc_spi_readwrite(ab3); /* msb */
++ mmc_spi_readwrite(ab2);
++ mmc_spi_readwrite(ab1);
++ mmc_spi_readwrite(ab0); /* lsb */
++ mmc_spi_readwrite(0xff);
++
++ for (i = 0; i < 8; i++)
++ {
++ result = mmc_spi_readwrite(0xff);
++ if (result == 0x00)
++ {
++ break;
++ }
++ }
++
++ if (result != 0x00)
++ {
++ MMC_Disable();
++ mmc_spi_readwrite(0xff);
++ return (1);
++ }
++
++ mmc_spi_readwrite(0xfe);
++
++ for (i = 0; i < 512; i += 32)
++ {
++ mmc_spi_write_only(data[i]);
++ mmc_spi_write_only(data[i+1]);
++ mmc_spi_write_only(data[i+2]);
++ mmc_spi_write_only(data[i+3]);
++ mmc_spi_write_only(data[i+4]);
++ mmc_spi_write_only(data[i+5]);
++ mmc_spi_write_only(data[i+6]);
++ mmc_spi_write_only(data[i+7]);
++ mmc_spi_write_only(data[i+8]);
++ mmc_spi_write_only(data[i+9]);
++ mmc_spi_write_only(data[i+10]);
++ mmc_spi_write_only(data[i+11]);
++ mmc_spi_write_only(data[i+12]);
++ mmc_spi_write_only(data[i+13]);
++ mmc_spi_write_only(data[i+14]);
++ mmc_spi_write_only(data[i+15]);
++ mmc_spi_write_only(data[i+16]);
++ mmc_spi_write_only(data[i+17]);
++ mmc_spi_write_only(data[i+18]);
++ mmc_spi_write_only(data[i+19]);
++ mmc_spi_write_only(data[i+20]);
++ mmc_spi_write_only(data[i+21]);
++ mmc_spi_write_only(data[i+22]);
++ mmc_spi_write_only(data[i+23]);
++ mmc_spi_write_only(data[i+24]);
++ mmc_spi_write_only(data[i+25]);
++ mmc_spi_write_only(data[i+26]);
++ mmc_spi_write_only(data[i+27]);
++ mmc_spi_write_only(data[i+28]);
++ mmc_spi_write_only(data[i+29]);
++ mmc_spi_write_only(data[i+30]);
++ mmc_spi_write_only(data[i+31]);
++ }
++
++ mmc_spi_readwrite(0xff);
++ mmc_spi_readwrite(0xff);
++
++ for (i = 0; i < 1000000; i++)
++ {
++ result = mmc_spi_readwrite(0xff);
++ if (result == 0xff)
++ {
++ break;
++ }
++ }
++
++ if (result != 0xff)
++ {
++ MMC_Disable();
++ mmc_spi_readwrite(0xff);
++ return (3);
++ }
++
++ MMC_Disable();
++ mmc_spi_readwrite(0xff);
++ return (0);
++}
++
++static int mmc_spi_read_block(unsigned char *data, unsigned int src_addr)
++{
++ unsigned int address;
++ unsigned char result = 0;
++ unsigned char ab0, ab1, ab2, ab3;
++ unsigned long flags;
++ int i, j;
++
++ address = src_addr;
++
++ ab3 = 0xff & (address >> 24);
++ ab2 = 0xff & (address >> 16);
++ ab1 = 0xff & (address >> 8);
++ ab0 = 0xff & address;
++
++ MMC_Enable();
++
++ mmc_spi_readwrite(0xff);
++
++ mmc_spi_readwrite(0x51);
++ mmc_spi_readwrite(ab3); /* msb */
++ mmc_spi_readwrite(ab2);
++ mmc_spi_readwrite(ab1);
++ mmc_spi_readwrite(ab0); /* lsb */
++ mmc_spi_readwrite(0xff);
++
++ for (i = 0; i < 8; i++)
++ {
++ result = mmc_spi_readwrite(0xff);
++ if (result == 0x00)
++ {
++ break;
++ }
++ }
++
++ if (result != 0x00)
++ {
++ MMC_Disable();
++ mmc_spi_readwrite(0xff);
++ return (1);
++ }
++
++ for (i = 0; i < 100000; i++)
++ {
++ result = mmc_spi_readwrite(0xff);
++ if (result == 0xfe)
++ {
++ break;
++ }
++ }
++
++ if (result != 0xfe)
++ {
++ MMC_Disable();
++ mmc_spi_readwrite(0xff);
++ return (2);
++ }
++
++ for (i = 0; i < 512; i += 32 )
++ {
++ data[i] = mmc_spi_read_only();
++ data[i+1] = mmc_spi_read_only();
++ data[i+2] = mmc_spi_read_only();
++ data[i+3] = mmc_spi_read_only();
++ data[i+4] = mmc_spi_read_only();
++ data[i+5] = mmc_spi_read_only();
++ data[i+6] = mmc_spi_read_only();
++ data[i+7] = mmc_spi_read_only();
++ data[i+8] = mmc_spi_read_only();
++ data[i+9] = mmc_spi_read_only();
++ data[i+10] = mmc_spi_read_only();
++ data[i+11] = mmc_spi_read_only();
++ data[i+12] = mmc_spi_read_only();
++ data[i+13] = mmc_spi_read_only();
++ data[i+14] = mmc_spi_read_only();
++ data[i+15] = mmc_spi_read_only();
++ data[i+16] = mmc_spi_read_only();
++ data[i+17] = mmc_spi_read_only();
++ data[i+18] = mmc_spi_read_only();
++ data[i+19] = mmc_spi_read_only();
++ data[i+20] = mmc_spi_read_only();
++ data[i+21] = mmc_spi_read_only();
++ data[i+22] = mmc_spi_read_only();
++ data[i+23] = mmc_spi_read_only();
++ data[i+24] = mmc_spi_read_only();
++ data[i+25] = mmc_spi_read_only();
++ data[i+26] = mmc_spi_read_only();
++ data[i+27] = mmc_spi_read_only();
++ data[i+28] = mmc_spi_read_only();
++ data[i+29] = mmc_spi_read_only();
++ data[i+30] = mmc_spi_read_only();
++ data[i+31] = mmc_spi_read_only();
++ }
++
++ result = mmc_spi_readwrite(0xff);
++ result = mmc_spi_readwrite(0xff);
++
++ MMC_Disable();
++ mmc_spi_readwrite(0xff);
++
++ return (0);
++}
++
++/*
++static int mmc_revalidate(kdev_t dev)
++{
++ int target, max_p, start, i;
++
++ mmc_media_detect = mmc_spi_media_detect();
++
++ if (mmc_media_detect == 0)
++ {
++ return -ENODEV;
++ }
++
++ target = DEVICE_NR(dev);
++
++ max_p = hd_gendisk.max_p;
++ start = target << 6;
++ for (i = max_p - 1; i >= 0; i--)
++ {
++ int minor = start + i;
++ invalidate_device(MKDEV(MAJOR_NR, minor), 1);
++ hd_gendisk.part[minor].start_sect = 0;
++ hd_gendisk.part[minor].nr_sects = 0;
++ }
++
++ grok_partitions(&hd_gendisk, target, 1 << 6, hd_sizes[0] * 2);
++
++ return 0;
++}
++*/
++
++
++static int mmc_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
++ unsigned long arg)
++{
++ if (!inode || !inode->i_rdev)
++ return -EINVAL;
++
++ switch (cmd) {
++#if 0
++ case BLKGETSIZE:
++ return put_user(hd[MINOR(inode->i_rdev)].nr_sects,
++ (unsigned long *)arg);
++ case BLKGETSIZE64:
++ return put_user((u64) hd[MINOR(inode->i_rdev)].
++ nr_sects, (u64 *) arg);
++ case BLKRRPART:
++ if (!capable(CAP_SYS_ADMIN))
++ return -EACCES;
++
++ return mmc_revalidate(inode->i_rdev);
++#endif
++ case HDIO_GETGEO:
++ {
++ struct block_device *bdev = inode->i_bdev;
++ struct hd_geometry *loc, g;
++ loc = (struct hd_geometry *)arg;
++ if (!loc)
++ return -EINVAL;
++ memset(loc, 0, sizeof(struct hd_geometry));
++ g.heads = 4;
++ g.sectors = 16;
++ g.cylinders = get_capacity(bdev->bd_disk) / (4*16);
++ g.start = get_start_sect(bdev);
++ return copy_to_user(loc, &g, sizeof(g)) ? -EFAULT : 0;
++ }
++ default:
++ return -ENOTTY;
++ }
++}
++
++
++/*
++static int mmc_check_media_change(kdev_t dev)
++{
++ (void) dev;
++ if (mmc_media_changed == 1)
++ {
++ mmc_media_changed = 0;
++ return 1;
++ }
++ else
++ {
++ return 0;
++ }
++}
++*/
++
++
++/*
++static int mmc_init(void)
++{
++ int result;
++
++ result = mmc_spi_hardware_init();
++
++ if (result != 0)
++ {
++ printk("mmc: error %d in mmc_spi_hardware_init\n", result);
++ return -1;
++ }
++
++
++ result = mmc_spi_hw_test();
++
++ if (result != 0)
++ {
++ printk("\n mmc: mmc_spi_hw_test i.O. \n\n");
++ return -1;
++ }
++
++
++ result = mmc_spi_speed_test();
++
++ if (result != 0)
++ {
++ printk("\n mmc: mmc_spi_speed_test i.O. \n\n");
++ return -1;
++ }
++
++
++ result = mmc_spi_card_init();
++ mdelay(50);
++ if (result != 0)
++ {
++ // Give it an extra shot
++ // result = mmc_spi_card_init();
++ if (result != 0)
++ {
++ printk("mmc: error %d in mmc_card_init\n", result);
++ return -1;
++ }
++ }
++
++ result = mmc_spi_card_config();
++ if (result != 0)
++ {
++ printk("mmc: error %d in mmc_card_config\n", result);
++ return -1;
++ }
++
++
++ return 0;
++}
++*/
++
++/*
++static void mmc_exit(void)
++{
++}
++*/
++
++
++/*
++static void mmc_check_media(void)
++{
++ int old_state, new_state;
++ int result;
++
++ old_state = mmc_media_detect;
++ new_state = mmc_spi_media_detect();
++
++ if (old_state != new_state)
++ {
++ mmc_media_changed = 1;
++ if (new_state == PRESENT)
++ {
++ result = mmc_init();
++ if (result != 0)
++ {
++ printk("mmc: error %d in mmc_init\n", result);
++ }
++ else
++ {
++ mmc_exit();
++ }
++ }
++ }
++
++#ifdef CHECK_MEDIA_CHANGE
++ del_timer(&mmc_timer);
++ mmc_timer.expires = jiffies + 10*HZ;
++ add_timer(&mmc_timer);
++#endif
++
++}
++*/
++
++
++/* NB: There might be several requests in the queue, simply dequeuing only one
++ and not checking for more will cause a stall because the block subsystem
++ will not call this function again unless the queue is "plugged" which can
++ only happen if it runs empty... */
++static void mmc_spi_request(struct request_queue *q)
++{
++ struct request *req;
++ int ret;
++
++ unsigned int mmc_address;
++ unsigned char *buffer_address;
++ int nr_sectors;
++ int i;
++ int result, success;
++
++ if (blk_queue_plugged(q)) {
++ return;
++ }
++
++ spin_lock(&mmc_spi_lock);
++ for(;;) {
++ req = elv_next_request(q);
++ if (!req)
++ break;
++
++ if (!blk_fs_request(req)) {
++ printk("not a blk_fs_request\n");
++ spin_unlock(&mmc_spi_lock);
++ continue;
++ }
++
++ mmc_address = req->sector * hd_hardsectsizes[0];
++ buffer_address = req->buffer;
++ nr_sectors = req->current_nr_sectors;
++ success = 1;
++ if (rq_data_dir(req) == READ) {
++ spin_unlock_irq(q->queue_lock);
++ for (i = 0; i < nr_sectors; i++) {
++ result = mmc_spi_read_block(buffer_address, mmc_address);
++ if (unlikely(result < 0)) {
++ printk(KERN_ERR "mmi_spi_block: error reading block (%d)\n", result);
++ success = 0;
++ break;
++ }
++ mmc_address += hd_hardsectsizes[0];
++ buffer_address += hd_hardsectsizes[0];
++ }
++ spin_lock_irq(q->queue_lock);
++ } else {
++ spin_unlock_irq(q->queue_lock);
++ for (i = 0; i < nr_sectors; i++) {
++ result = mmc_spi_write_block(mmc_address, buffer_address);
++ if (unlikely(result < 0)) {
++ printk(KERN_ERR "mmi_spi_block: error writing block (%d)\n", result);
++ success = 0;
++ break;
++ }
++ mmc_address += hd_hardsectsizes[0];
++ buffer_address += hd_hardsectsizes[0];
++ }
++ spin_lock_irq(q->queue_lock);
++ }
++ ret = end_that_request_chunk(req, success, nr_sectors * hd_hardsectsizes[0]);
++ if (!ret) {
++ blkdev_dequeue_request(req);
++ end_that_request_last(req, 0);
++ }
++ }
++ spin_unlock(&mmc_spi_lock);
++}
++
++
++static int mmc_open(struct inode *inode, struct file *filp)
++{
++ // int device;
++ (void) filp;
++ mmc_media_detect = mmc_spi_media_detect();
++
++ if (mmc_media_detect == 0)
++ return -ENODEV;
++
++ return 0;
++}
++
++static int mmc_release(struct inode *inode, struct file *filp)
++{
++ return 0;
++}
++
++
++static struct block_device_operations mmc_spi_bdops = {
++ .open = mmc_open,
++ .release = mmc_release,
++ .ioctl = mmc_ioctl,
++ .owner = THIS_MODULE,
++#if 0
++ .check_media_change = mmc_check_media_change,
++ .revalidate = mmc_revalidate,
++#endif
++};
++
++static int detect_card(void)
++{
++ int result;
++
++ result = mmc_spi_card_init();
++ if (result != 0) {
++ // Give it an extra shot
++ result = mmc_spi_card_init();
++ if (result != 0) {
++ printk(KERN_ERR "mmc_spi_block: error in mmc_card_init (%d)\n", result);
++ return -ENODEV;
++ }
++ }
++
++ result = mmc_spi_card_config();
++ // result = mmc_spi_speed_test();
++ if (result != 0) {
++ printk(KERN_ERR "mmc_spi_block: error in mmc_card_config (%d)\n", result);
++ return -ENODEV;
++ }
++
++ return 0;
++}
++
++/* Fills in the gendisk structure from the received card
++ data. */
++static int gendisk_init(struct device *dev, struct gendisk *gd)
++{
++ if (!gd)
++ return -EINVAL;
++
++ gd->major = major;
++ gd->first_minor = 0; /* only one device supported */
++ gd->fops = &mmc_spi_bdops;
++ gd->driverfs_dev = dev;
++
++ gd->queue = blk_init_queue(mmc_spi_request,NULL);
++
++ if (!gd->queue)
++ return -ENOMEM;
++
++ sprintf(gd->disk_name, "mmcblk");
++
++ blk_queue_hardsect_size(gd->queue, hd_hardsectsizes[0]);
++
++ set_capacity(gd, hd_sizes[0]<<1);
++
++ return 0;
++}
++
++static int gendisk_fini(struct gendisk *gd)
++{
++ BUG_ON(!gd);
++
++ if (gd->queue)
++ blk_cleanup_queue(gd->queue);
++
++ del_gendisk(gd);
++}
++
++/* platform driver device instance routines */
++static int mmc_spi_probe(struct platform_device *pdev)
++{
++ int result;
++ printk("$Id: mmc_spi_block.c,v 1.04 2007/05/25 23:27:16 mrdata Exp $\n");
++
++ result = mmc_spi_hardware_init();
++ if (result != 0) {
++ printk(KERN_ERR "mmc_spi_block: error in mmc_spi_hardware_init (%d)\n", result);
++ result = -ENODEV;
++ return result;
++ }
++
++ result = detect_card();
++ if (result < 0)
++ return result;
++
++ mmc_media_detect = 1;
++
++ result = register_blkdev(major, DEVICE_NAME);
++ if (result < 0)
++ return result;
++
++ if (!major)
++ major = result;
++
++ /* allow 8 partitions per device */
++ BUG_ON(mmc_disk!=NULL);
++ mmc_disk = alloc_disk(1 << 3);
++ if (!mmc_disk) {
++ result = -ENOMEM;
++ goto out;
++ }
++
++ result = gendisk_init(&pdev->dev, mmc_disk);
++ if (result < 0)
++ goto out;
++
++ add_disk(mmc_disk);
++
++ /*init_timer(&mmc_timer);
++ mmc_timer.expires = jiffies + HZ;
++ mmc_timer.function = (void *)mmc_check_media;
++ add_timer(&mmc_timer); */
++ return 0;
++
++out:
++ if (mmc_disk)
++ put_disk(mmc_disk);
++
++ unregister_blkdev(major, DEVICE_NAME);
++ return result;
++}
++
++static int mmc_spi_remove(struct platform_device *dev)
++{
++ int ret;
++
++ if (mmc_disk) {
++ gendisk_fini(mmc_disk);
++ put_disk(mmc_disk);
++ }
++
++ ret = unregister_blkdev(major, DEVICE_NAME);
++ return ret;
++}
++
++struct platform_driver mmc_spi_driver = {
++ .probe = mmc_spi_probe,
++ .remove = mmc_spi_remove,
++ .driver = {
++ .name = "mmc_spi",
++ .owner = THIS_MODULE,
++ },
++};
++
++
++/* module init/exit */
++static int __init mmc_block_spi_init(void)
++{
++ int ret;
++ spin_lock_init(&mmc_spi_lock);
++
++ ret = platform_driver_register(&mmc_spi_driver);
++ if (ret < 0)
++ return ret;
++
++ /* we just support one device */
++ mmc_dev = platform_device_register_simple("mmc_spi", -1, NULL, 0);
++ if (IS_ERR(mmc_dev))
++ return PTR_ERR(mmc_dev);
++
++ return 0;
++}
++
++
++static void __exit mmc_block_spi_exit(void)
++{
++ platform_driver_unregister(&mmc_spi_driver);
++ if (mmc_dev)
++ platform_device_unregister(mmc_dev);
++}
++
++
++module_init(mmc_block_spi_init);
++module_exit(mmc_block_spi_exit);
++
++MODULE_AUTHOR("Madsuk,Rohde,TaGana,Carsten Juttner <carjay@gmx.net>,Guylhem Aznar <mmc-driver@externe.net>,mrdata");
++MODULE_DESCRIPTION("Driver for MMC/SD-Cards in SPI mode by GPIO");
++MODULE_SUPPORTED_DEVICE("SIMpad");
++MODULE_LICENSE("GPL");
++
++module_param(major, int, 0444);
++MODULE_PARM_DESC(major, "specify the major device number for the MMC/SD SPI driver");
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-19 12:58:32 +0000