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authorRajithaY <rajithax.yerrumsetty@intel.com>2017-04-25 03:31:15 -0700
committerRajitha Yerrumchetty <rajithax.yerrumsetty@intel.com>2017-05-22 06:48:08 +0000
commitbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch)
treeca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/seabios/src/hw/sdcard.c
parenta14b48d18a9ed03ec191cf16b162206998a895ce (diff)
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to kvmfornfv repo and make use of the updated latest qemu for the execution of all testcase Change-Id: I1280af507a857675c7f81d30c95255635667bdd7 Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/seabios/src/hw/sdcard.c')
-rw-r--r--qemu/roms/seabios/src/hw/sdcard.c568
1 files changed, 0 insertions, 568 deletions
diff --git a/qemu/roms/seabios/src/hw/sdcard.c b/qemu/roms/seabios/src/hw/sdcard.c
deleted file mode 100644
index e01e1bb02..000000000
--- a/qemu/roms/seabios/src/hw/sdcard.c
+++ /dev/null
@@ -1,568 +0,0 @@
-// PCI SD Host Controller Interface
-//
-// Copyright (C) 2014 Kevin O'Connor <kevin@koconnor.net>
-//
-// This file may be distributed under the terms of the GNU LGPLv3 license.
-
-#include "block.h" // struct drive_s
-#include "malloc.h" // malloc_fseg
-#include "output.h" // znprintf
-#include "pci.h" // pci_config_readl
-#include "pci_ids.h" // PCI_CLASS_SYSTEM_SDHCI
-#include "pci_regs.h" // PCI_BASE_ADDRESS_0
-#include "romfile.h" // romfile_findprefix
-#include "stacks.h" // wait_preempt
-#include "std/disk.h" // DISK_RET_SUCCESS
-#include "string.h" // memset
-#include "util.h" // boot_add_hd
-#include "x86.h" // writel
-
-// SDHCI MMIO registers
-struct sdhci_s {
- u32 sdma_addr;
- u16 block_size;
- u16 block_count;
- u32 arg;
- u16 transfer_mode;
- u16 cmd;
- u32 response[4];
- u32 data;
- u32 present_state;
- u8 host_control;
- u8 power_control;
- u8 block_gap_control;
- u8 wakeup_control;
- u16 clock_control;
- u8 timeout_control;
- u8 software_reset;
- u16 irq_status;
- u16 error_irq_status;
- u16 irq_enable;
- u16 error_irq_enable;
- u16 irq_signal;
- u16 error_signal;
- u16 auto_cmd12;
- u16 host_control2;
- u32 cap_lo, cap_hi;
- u64 max_current;
- u16 force_auto_cmd12;
- u16 force_error;
- u8 adma_error;
- u8 pad_55[3];
- u64 adma_addr;
- u8 pad_60[156];
- u16 slot_irq;
- u16 controller_version;
-} PACKED;
-
-// SDHCI commands
-#define SCB_R0 0x00 // No response
-#define SCB_R48 0x1a // Response R1 (no data), R5, R6, R7
-#define SCB_R48d 0x3a // Response R1 (with data)
-#define SCB_R48b 0x1b // Response R1b, R5b
-#define SCB_R48o 0x02 // Response R3, R4
-#define SCB_R136 0x09 // Response R2
-#define SC_GO_IDLE_STATE ((0<<8) | SCB_R0)
-#define SC_SEND_OP_COND ((1<<8) | SCB_R48o)
-#define SC_ALL_SEND_CID ((2<<8) | SCB_R136)
-#define SC_SEND_RELATIVE_ADDR ((3<<8) | SCB_R48)
-#define SC_SELECT_DESELECT_CARD ((7<<8) | SCB_R48b)
-#define SC_SEND_IF_COND ((8<<8) | SCB_R48)
-#define SC_SEND_EXT_CSD ((8<<8) | SCB_R48d)
-#define SC_SEND_CSD ((9<<8) | SCB_R136)
-#define SC_READ_SINGLE ((17<<8) | SCB_R48d)
-#define SC_READ_MULTIPLE ((18<<8) | SCB_R48d)
-#define SC_WRITE_SINGLE ((24<<8) | SCB_R48d)
-#define SC_WRITE_MULTIPLE ((25<<8) | SCB_R48d)
-#define SC_APP_CMD ((55<<8) | SCB_R48)
-#define SC_APP_SEND_OP_COND ((41<<8) | SCB_R48o)
-
-// SDHCI irqs
-#define SI_CMD_COMPLETE (1<<0)
-#define SI_TRANS_DONE (1<<1)
-#define SI_WRITE_READY (1<<4)
-#define SI_READ_READY (1<<5)
-#define SI_ERROR (1<<15)
-
-// SDHCI present_state flags
-#define SP_CMD_INHIBIT (1<<0)
-#define SP_DAT_INHIBIT (1<<1)
-#define SP_CARD_INSERTED (1<<16)
-
-// SDHCI transfer_mode flags
-#define ST_BLOCKCOUNT (1<<1)
-#define ST_AUTO_CMD12 (1<<2)
-#define ST_READ (1<<4)
-#define ST_MULTIPLE (1<<5)
-
-// SDHCI capabilities flags
-#define SD_CAPLO_V33 (1<<24)
-#define SD_CAPLO_V30 (1<<25)
-#define SD_CAPLO_V18 (1<<26)
-#define SD_CAPLO_BASECLOCK_SHIFT 8
-#define SD_CAPLO_BASECLOCK_MASK 0xff
-
-// SDHCI clock control flags
-#define SCC_INTERNAL_ENABLE (1<<0)
-#define SCC_STABLE (1<<1)
-#define SCC_CLOCK_ENABLE (1<<2)
-#define SCC_SDCLK_MASK 0xff
-#define SCC_SDCLK_SHIFT 8
-#define SCC_SDCLK_HI_MASK 0x300
-#define SCC_SDCLK_HI_RSHIFT 2
-
-// SDHCI power control flags
-#define SPC_POWER_ON (1<<0)
-#define SPC_V18 0x0a
-#define SPC_V30 0x0c
-#define SPC_V33 0x0e
-
-// SDHCI software reset flags
-#define SRF_ALL 0x01
-#define SRF_CMD 0x02
-#define SRF_DATA 0x04
-
-// SDHCI result flags
-#define SR_OCR_CCS (1<<30)
-#define SR_OCR_NOTBUSY (1<<31)
-
-// SDHCI timeouts
-#define SDHCI_POWER_OFF_TIME 1
-#define SDHCI_POWER_ON_TIME 1
-#define SDHCI_CLOCK_ON_TIME 1 // 74 clock cycles
-#define SDHCI_POWERUP_TIMEOUT 1000
-#define SDHCI_PIO_TIMEOUT 1000 // XXX - this is just made up
-
-// Internal 'struct drive_s' storage for a detected card
-struct sddrive_s {
- struct drive_s drive;
- struct sdhci_s *regs;
- int card_type;
-};
-
-// SD card types
-#define SF_MMC (1<<0)
-#define SF_HIGHCAPACITY (1<<1)
-
-// Repeatedly read a u16 register until any bit in a given mask is set
-static int
-sdcard_waitw(u16 *reg, u16 mask)
-{
- u32 end = timer_calc(SDHCI_PIO_TIMEOUT);
- for (;;) {
- u16 v = readw(reg);
- if (v & mask)
- return v;
- if (timer_check(end)) {
- warn_timeout();
- return -1;
- }
- yield();
- }
-}
-
-// Send an sdhci reset
-static int
-sdcard_reset(struct sdhci_s *regs, int flags)
-{
- writeb(&regs->software_reset, flags);
- u32 end = timer_calc(SDHCI_PIO_TIMEOUT);
- while (readb(&regs->software_reset))
- if (timer_check(end)) {
- warn_timeout();
- return -1;
- }
- return 0;
-}
-
-// Send a command to the card.
-static int
-sdcard_pio(struct sdhci_s *regs, int cmd, u32 *param)
-{
- u32 state = readl(&regs->present_state);
- dprintf(9, "sdcard_pio cmd %x %x %x\n", cmd, *param, state);
- if ((state & SP_CMD_INHIBIT)
- || ((cmd & 0x03) == 0x03 && state & SP_DAT_INHIBIT)) {
- dprintf(1, "sdcard_pio not ready %x\n", state);
- return -1;
- }
- // Send command
- writel(&regs->arg, *param);
- writew(&regs->cmd, cmd);
- int ret = sdcard_waitw(&regs->irq_status, SI_ERROR|SI_CMD_COMPLETE);
- if (ret < 0)
- return ret;
- if (ret & SI_ERROR) {
- u16 err = readw(&regs->error_irq_status);
- dprintf(3, "sdcard_pio command stop (code=%x)\n", err);
- sdcard_reset(regs, SRF_CMD|SRF_DATA);
- writew(&regs->error_irq_status, err);
- return -1;
- }
- writew(&regs->irq_status, SI_CMD_COMPLETE);
- // Read response
- memcpy(param, regs->response, sizeof(regs->response));
- dprintf(9, "sdcard cmd %x response %x %x %x %x\n"
- , cmd, param[0], param[1], param[2], param[3]);
- return 0;
-}
-
-// Send an "app specific" command to the card.
-static int
-sdcard_pio_app(struct sdhci_s *regs, int cmd, u32 *param)
-{
- u32 aparam[4] = {};
- int ret = sdcard_pio(regs, SC_APP_CMD, aparam);
- if (ret)
- return ret;
- return sdcard_pio(regs, cmd, param);
-}
-
-// Send a command to the card which transfers data.
-static int
-sdcard_pio_transfer(struct sddrive_s *drive, int cmd, u32 addr
- , void *data, int count)
-{
- // Send command
- writew(&drive->regs->block_size, DISK_SECTOR_SIZE);
- writew(&drive->regs->block_count, count);
- int isread = cmd != SC_WRITE_SINGLE && cmd != SC_WRITE_MULTIPLE;
- u16 tmode = ((count > 1 ? ST_MULTIPLE|ST_AUTO_CMD12|ST_BLOCKCOUNT : 0)
- | (isread ? ST_READ : 0));
- writew(&drive->regs->transfer_mode, tmode);
- if (!(drive->card_type & SF_HIGHCAPACITY))
- addr *= DISK_SECTOR_SIZE;
- u32 param[4] = { addr };
- int ret = sdcard_pio(drive->regs, cmd, param);
- if (ret)
- return ret;
- // Read/write data
- u16 cbit = isread ? SI_READ_READY : SI_WRITE_READY;
- while (count--) {
- ret = sdcard_waitw(&drive->regs->irq_status, cbit);
- if (ret < 0)
- return ret;
- writew(&drive->regs->irq_status, cbit);
- int i;
- for (i=0; i<DISK_SECTOR_SIZE/4; i++) {
- if (isread)
- *(u32*)data = readl(&drive->regs->data);
- else
- writel(&drive->regs->data, *(u32*)data);
- data += 4;
- }
- }
- // Complete command
- ret = sdcard_waitw(&drive->regs->irq_status, SI_TRANS_DONE);
- if (ret < 0)
- return ret;
- writew(&drive->regs->irq_status, SI_TRANS_DONE);
- return 0;
-}
-
-// Read/write a block of data to/from the card.
-static int
-sdcard_readwrite(struct disk_op_s *op, int iswrite)
-{
- struct sddrive_s *drive = container_of(
- op->drive_gf, struct sddrive_s, drive);
- int cmd = iswrite ? SC_WRITE_SINGLE : SC_READ_SINGLE;
- if (op->count > 1)
- cmd = iswrite ? SC_WRITE_MULTIPLE : SC_READ_MULTIPLE;
- int ret = sdcard_pio_transfer(drive, cmd, op->lba, op->buf_fl, op->count);
- if (ret)
- return DISK_RET_EBADTRACK;
- return DISK_RET_SUCCESS;
-}
-
-int
-sdcard_process_op(struct disk_op_s *op)
-{
- if (!CONFIG_SDCARD)
- return 0;
- switch (op->command) {
- case CMD_READ:
- return sdcard_readwrite(op, 0);
- case CMD_WRITE:
- return sdcard_readwrite(op, 1);
- default:
- return default_process_op(op);
- }
-}
-
-
-/****************************************************************
- * Setup
- ****************************************************************/
-
-static int
-sdcard_set_power(struct sdhci_s *regs)
-{
- u32 cap = readl(&regs->cap_lo);
- u32 volt, vbits;
- if (cap & SD_CAPLO_V33) {
- volt = 1<<20;
- vbits = SPC_V33;
- } else if (cap & SD_CAPLO_V30) {
- volt = 1<<18;
- vbits = SPC_V30;
- } else if (cap & SD_CAPLO_V18) {
- volt = 1<<7;
- vbits = SPC_V18;
- } else {
- dprintf(1, "SD controller unsupported volt range (%x)\n", cap);
- return -1;
- }
- writeb(&regs->power_control, 0);
- msleep(SDHCI_POWER_OFF_TIME);
- writeb(&regs->power_control, vbits | SPC_POWER_ON);
- msleep(SDHCI_POWER_ON_TIME);
- return volt;
-}
-
-static int
-sdcard_set_frequency(struct sdhci_s *regs, u32 khz)
-{
- u16 ver = readw(&regs->controller_version);
- u32 cap = readl(&regs->cap_lo);
- u32 base_freq = (cap >> SD_CAPLO_BASECLOCK_SHIFT) & SD_CAPLO_BASECLOCK_MASK;
- if (!base_freq) {
- dprintf(1, "Unknown base frequency for SD controller\n");
- return -1;
- }
- // Set new frequency
- u32 divisor = DIV_ROUND_UP(base_freq * 1000, khz);
- u16 creg;
- if ((ver & 0xff) <= 0x01) {
- divisor = divisor > 1 ? 1 << __fls(divisor-1) : 0;
- creg = (divisor & SCC_SDCLK_MASK) << SCC_SDCLK_SHIFT;
- } else {
- divisor = DIV_ROUND_UP(divisor, 2);
- creg = (divisor & SCC_SDCLK_MASK) << SCC_SDCLK_SHIFT;
- creg |= (divisor & SCC_SDCLK_HI_MASK) >> SCC_SDCLK_HI_RSHIFT;
- }
- dprintf(3, "sdcard_set_frequency %d %d %x\n", base_freq, khz, creg);
- writew(&regs->clock_control, 0);
- writew(&regs->clock_control, creg | SCC_INTERNAL_ENABLE);
- // Wait for frequency to become active
- int ret = sdcard_waitw(&regs->clock_control, SCC_STABLE);
- if (ret < 0)
- return ret;
- // Enable SD clock
- writew(&regs->clock_control, creg | SCC_INTERNAL_ENABLE | SCC_CLOCK_ENABLE);
- return 0;
-}
-
-// Obtain the disk size of an SD card
-static int
-sdcard_get_capacity(struct sddrive_s *drive, u8 *csd)
-{
- // Original MMC/SD card capacity formula
- u16 C_SIZE = (csd[6] >> 6) | (csd[7] << 2) | ((csd[8] & 0x03) << 10);
- u8 C_SIZE_MULT = (csd[4] >> 7) | ((csd[5] & 0x03) << 1);
- u8 READ_BL_LEN = csd[9] & 0x0f;
- u32 count = (C_SIZE+1) << (C_SIZE_MULT + 2 + READ_BL_LEN - 9);
- // Check for newer encoding formats.
- u8 CSD_STRUCTURE = csd[14] >> 6;
- if ((drive->card_type & SF_MMC) && CSD_STRUCTURE >= 2) {
- // Get capacity from EXT_CSD register
- u8 ext_csd[512];
- int ret = sdcard_pio_transfer(drive, SC_SEND_EXT_CSD, 0, ext_csd, 1);
- if (ret)
- return ret;
- count = *(u32*)&ext_csd[212];
- } else if (!(drive->card_type & SF_MMC) && CSD_STRUCTURE >= 1) {
- // High capacity SD card
- u32 C_SIZE2 = csd[5] | (csd[6] << 8) | ((csd[7] & 0x3f) << 16);
- count = (C_SIZE2+1) << (19-9);
- }
- // Fill drive struct and return
- drive->drive.blksize = DISK_SECTOR_SIZE;
- drive->drive.sectors = count;
- return 0;
-}
-
-// Initialize an SD card
-static int
-sdcard_card_setup(struct sddrive_s *drive, int volt, int prio)
-{
- struct sdhci_s *regs = drive->regs;
- // Set controller to initialization clock rate
- int ret = sdcard_set_frequency(regs, 400);
- if (ret)
- return ret;
- msleep(SDHCI_CLOCK_ON_TIME);
- // Reset card
- u32 param[4] = { };
- ret = sdcard_pio(regs, SC_GO_IDLE_STATE, param);
- if (ret)
- return ret;
- // Let card know SDHC/SDXC is supported and confirm voltage
- u32 hcs = 0, vrange = (volt >= (1<<15) ? 0x100 : 0x200) | 0xaa;
- param[0] = vrange;
- ret = sdcard_pio(regs, SC_SEND_IF_COND, param);
- if (!ret && param[0] == vrange)
- hcs = (1<<30);
- // Verify SD card (instead of MMC or SDIO)
- param[0] = 0x00;
- ret = sdcard_pio_app(regs, SC_APP_SEND_OP_COND, param);
- if (ret) {
- // Check for MMC card
- param[0] = 0x00;
- ret = sdcard_pio(regs, SC_SEND_OP_COND, param);
- if (ret)
- return ret;
- drive->card_type |= SF_MMC;
- hcs = (1<<30);
- }
- // Init card
- u32 end = timer_calc(SDHCI_POWERUP_TIMEOUT);
- for (;;) {
- param[0] = hcs | volt; // high-capacity support and voltage level
- if (drive->card_type & SF_MMC)
- ret = sdcard_pio(regs, SC_SEND_OP_COND, param);
- else
- ret = sdcard_pio_app(regs, SC_APP_SEND_OP_COND, param);
- if (ret)
- return ret;
- if (param[0] & SR_OCR_NOTBUSY)
- break;
- if (timer_check(end)) {
- warn_timeout();
- return -1;
- }
- msleep(5); // Avoid flooding log when debugging
- }
- drive->card_type |= (param[0] & SR_OCR_CCS) ? SF_HIGHCAPACITY : 0;
- // Select card (get cid, set rca, get csd, select card)
- param[0] = 0x00;
- ret = sdcard_pio(regs, SC_ALL_SEND_CID, param);
- if (ret)
- return ret;
- u8 cid[16];
- memcpy(cid, param, sizeof(cid));
- param[0] = drive->card_type & SF_MMC ? 0x0001 << 16 : 0x00;
- ret = sdcard_pio(regs, SC_SEND_RELATIVE_ADDR, param);
- if (ret)
- return ret;
- u16 rca = drive->card_type & SF_MMC ? 0x0001 : param[0] >> 16;
- param[0] = rca << 16;
- ret = sdcard_pio(regs, SC_SEND_CSD, param);
- if (ret)
- return ret;
- u8 csd[16];
- memcpy(csd, param, sizeof(csd));
- param[0] = rca << 16;
- ret = sdcard_pio(regs, SC_SELECT_DESELECT_CARD, param);
- if (ret)
- return ret;
- // Set controller to data transfer clock rate
- ret = sdcard_set_frequency(regs, 25000);
- if (ret)
- return ret;
- // Register drive
- ret = sdcard_get_capacity(drive, csd);
- if (ret)
- return ret;
- char pnm[7] = {};
- int i;
- for (i=0; i < (drive->card_type & SF_MMC ? 6 : 5); i++)
- pnm[i] = cid[11-i];
- char *desc = znprintf(MAXDESCSIZE, "%s %s %dMiB"
- , drive->card_type & SF_MMC ? "MMC drive" : "SD card"
- , pnm, (u32)(drive->drive.sectors >> 11));
- dprintf(1, "Found sdcard at %p: %s\n", regs, desc);
- boot_add_hd(&drive->drive, desc, prio);
- return 0;
-}
-
-// Setup and configure an SD card controller
-static void
-sdcard_controller_setup(struct sdhci_s *regs, int prio)
-{
- // Initialize controller
- u32 present_state = readl(&regs->present_state);
- if (!(present_state & SP_CARD_INSERTED))
- // No card present
- return;
- dprintf(3, "sdhci@%p ver=%x cap=%x %x\n", regs
- , readw(&regs->controller_version)
- , readl(&regs->cap_lo), readl(&regs->cap_hi));
- sdcard_reset(regs, SRF_ALL);
- writew(&regs->irq_signal, 0);
- writew(&regs->irq_enable, 0x01ff);
- writew(&regs->irq_status, readw(&regs->irq_status));
- writew(&regs->error_signal, 0);
- writew(&regs->error_irq_enable, 0x01ff);
- writew(&regs->error_irq_status, readw(&regs->error_irq_status));
- writeb(&regs->timeout_control, 0x0e); // Set to max timeout
- int volt = sdcard_set_power(regs);
- if (volt < 0)
- return;
-
- // Initialize card
- struct sddrive_s *drive = malloc_fseg(sizeof(*drive));
- if (!drive) {
- warn_noalloc();
- goto fail;
- }
- memset(drive, 0, sizeof(*drive));
- drive->drive.type = DTYPE_SDCARD;
- drive->regs = regs;
- int ret = sdcard_card_setup(drive, volt, prio);
- if (ret) {
- free(drive);
- goto fail;
- }
- return;
-fail:
- writeb(&regs->power_control, 0);
- writew(&regs->clock_control, 0);
-}
-
-static void
-sdcard_pci_setup(void *data)
-{
- struct pci_device *pci = data;
- wait_preempt(); // Avoid pci_config_readl when preempting
- // XXX - bars dependent on slot index register in pci config space
- u32 regs = pci_config_readl(pci->bdf, PCI_BASE_ADDRESS_0);
- regs &= PCI_BASE_ADDRESS_MEM_MASK;
- pci_config_maskw(pci->bdf, PCI_COMMAND, 0,
- PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
- int prio = bootprio_find_pci_device(pci);
- sdcard_controller_setup((void*)regs, prio);
-}
-
-static void
-sdcard_romfile_setup(void *data)
-{
- struct romfile_s *file = data;
- int prio = bootprio_find_named_rom(file->name, 0);
- u32 addr = romfile_loadint(file->name, 0);
- dprintf(1, "Starting sdcard controller check at addr %x\n", addr);
- sdcard_controller_setup((void*)addr, prio);
-}
-
-void
-sdcard_setup(void)
-{
- if (!CONFIG_SDCARD)
- return;
-
- struct romfile_s *file = NULL;
- for (;;) {
- file = romfile_findprefix("etc/sdcard", file);
- if (!file)
- break;
- run_thread(sdcard_romfile_setup, file);
- }
-
- struct pci_device *pci;
- foreachpci(pci) {
- if (pci->class != PCI_CLASS_SYSTEM_SDHCI || pci->prog_if >= 2)
- // Not an SDHCI controller following SDHCI spec
- continue;
- run_thread(sdcard_pci_setup, pci);
- }
-}